Mercurial > vim
annotate src/memline.c @ 15229:34f71bcceecd v8.1.0624
patch 8.1.0624: overuling CONF_ARGS from the environment still does not work
commit https://github.com/vim/vim/commit/39b5d8b514a0022899a09ba097997099d861dcff
Author: Bram Moolenaar <Bram@vim.org>
Date: Sat Dec 22 17:27:15 2018 +0100
patch 8.1.0624: overuling CONF_ARGS from the environment still does not work
Problem: Overuling CONF_ARGS from the environment still does not work. (Tony
Mechelynck)
Solution: Add back CONF_ARGS next to the new numbered ones.
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Sat, 22 Dec 2018 17:30:05 +0100 |
| parents | 4b2de998ebd6 |
| children | 19e79a1ed6b6 |
| rev | line source |
|---|---|
|
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 7 | 2 * |
| 3 * VIM - Vi IMproved by Bram Moolenaar | |
| 4 * | |
| 5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
| 6 * Do ":help credits" in Vim to see a list of people who contributed. | |
| 7 * See README.txt for an overview of the Vim source code. | |
| 8 */ | |
| 9 | |
| 10 /* for debugging */ | |
|
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11 /* #define CHECK(c, s) do { if (c) EMSG(s); } while (0) */ |
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12 #define CHECK(c, s) do { /**/ } while (0) |
| 7 | 13 |
| 14 /* | |
| 15 * memline.c: Contains the functions for appending, deleting and changing the | |
| 625 | 16 * text lines. The memfile functions are used to store the information in |
| 17 * blocks of memory, backed up by a file. The structure of the information is | |
| 18 * a tree. The root of the tree is a pointer block. The leaves of the tree | |
| 19 * are data blocks. In between may be several layers of pointer blocks, | |
| 20 * forming branches. | |
| 7 | 21 * |
| 22 * Three types of blocks are used: | |
| 23 * - Block nr 0 contains information for recovery | |
| 24 * - Pointer blocks contain list of pointers to other blocks. | |
| 25 * - Data blocks contain the actual text. | |
| 26 * | |
| 27 * Block nr 0 contains the block0 structure (see below). | |
| 28 * | |
| 29 * Block nr 1 is the first pointer block. It is the root of the tree. | |
| 30 * Other pointer blocks are branches. | |
| 31 * | |
| 32 * If a line is too big to fit in a single page, the block containing that | |
| 33 * line is made big enough to hold the line. It may span several pages. | |
| 34 * Otherwise all blocks are one page. | |
| 35 * | |
| 36 * A data block that was filled when starting to edit a file and was not | |
| 37 * changed since then, can have a negative block number. This means that it | |
| 38 * has not yet been assigned a place in the file. When recovering, the lines | |
| 39 * in this data block can be read from the original file. When the block is | |
| 40 * changed (lines appended/deleted/changed) or when it is flushed it gets a | |
| 41 * positive number. Use mf_trans_del() to get the new number, before calling | |
| 42 * mf_get(). | |
| 43 */ | |
| 44 | |
| 45 #include "vim.h" | |
| 46 | |
| 47 #ifndef UNIX /* it's in os_unix.h for Unix */ | |
| 48 # include <time.h> | |
| 49 #endif | |
| 50 | |
| 1030 | 51 #if defined(SASC) || defined(__amigaos4__) |
| 7 | 52 # include <proto/dos.h> /* for Open() and Close() */ |
| 53 #endif | |
| 54 | |
| 55 typedef struct block0 ZERO_BL; /* contents of the first block */ | |
| 56 typedef struct pointer_block PTR_BL; /* contents of a pointer block */ | |
| 57 typedef struct data_block DATA_BL; /* contents of a data block */ | |
| 58 typedef struct pointer_entry PTR_EN; /* block/line-count pair */ | |
| 59 | |
| 2267 | 60 #define DATA_ID (('d' << 8) + 'a') /* data block id */ |
| 61 #define PTR_ID (('p' << 8) + 't') /* pointer block id */ | |
| 62 #define BLOCK0_ID0 'b' /* block 0 id 0 */ | |
| 63 #define BLOCK0_ID1 '0' /* block 0 id 1 */ | |
| 64 #define BLOCK0_ID1_C0 'c' /* block 0 id 1 'cm' 0 */ | |
| 65 #define BLOCK0_ID1_C1 'C' /* block 0 id 1 'cm' 1 */ | |
| 6122 | 66 #define BLOCK0_ID1_C2 'd' /* block 0 id 1 'cm' 2 */ |
| 67 | |
| 68 #if defined(FEAT_CRYPT) | |
| 69 static int id1_codes[] = { | |
| 70 BLOCK0_ID1_C0, /* CRYPT_M_ZIP */ | |
| 71 BLOCK0_ID1_C1, /* CRYPT_M_BF */ | |
| 72 BLOCK0_ID1_C2, /* CRYPT_M_BF2 */ | |
| 73 }; | |
| 74 #endif | |
| 7 | 75 |
| 76 /* | |
| 77 * pointer to a block, used in a pointer block | |
| 78 */ | |
| 79 struct pointer_entry | |
| 80 { | |
| 81 blocknr_T pe_bnum; /* block number */ | |
| 82 linenr_T pe_line_count; /* number of lines in this branch */ | |
| 83 linenr_T pe_old_lnum; /* lnum for this block (for recovery) */ | |
| 84 int pe_page_count; /* number of pages in block pe_bnum */ | |
| 85 }; | |
| 86 | |
| 87 /* | |
| 88 * A pointer block contains a list of branches in the tree. | |
| 89 */ | |
| 90 struct pointer_block | |
| 91 { | |
| 92 short_u pb_id; /* ID for pointer block: PTR_ID */ | |
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93 short_u pb_count; /* number of pointers in this block */ |
| 7 | 94 short_u pb_count_max; /* maximum value for pb_count */ |
| 95 PTR_EN pb_pointer[1]; /* list of pointers to blocks (actually longer) | |
| 96 * followed by empty space until end of page */ | |
| 97 }; | |
| 98 | |
| 99 /* | |
| 100 * A data block is a leaf in the tree. | |
| 101 * | |
| 102 * The text of the lines is at the end of the block. The text of the first line | |
| 103 * in the block is put at the end, the text of the second line in front of it, | |
| 104 * etc. Thus the order of the lines is the opposite of the line number. | |
| 105 */ | |
| 106 struct data_block | |
| 107 { | |
| 108 short_u db_id; /* ID for data block: DATA_ID */ | |
| 109 unsigned db_free; /* free space available */ | |
| 110 unsigned db_txt_start; /* byte where text starts */ | |
| 111 unsigned db_txt_end; /* byte just after data block */ | |
| 112 linenr_T db_line_count; /* number of lines in this block */ | |
| 113 unsigned db_index[1]; /* index for start of line (actually bigger) | |
| 114 * followed by empty space upto db_txt_start | |
| 115 * followed by the text in the lines until | |
| 116 * end of page */ | |
| 117 }; | |
| 118 | |
| 119 /* | |
| 120 * The low bits of db_index hold the actual index. The topmost bit is | |
| 121 * used for the global command to be able to mark a line. | |
| 122 * This method is not clean, but otherwise there would be at least one extra | |
| 123 * byte used for each line. | |
| 124 * The mark has to be in this place to keep it with the correct line when other | |
| 125 * lines are inserted or deleted. | |
| 126 */ | |
| 127 #define DB_MARKED ((unsigned)1 << ((sizeof(unsigned) * 8) - 1)) | |
| 128 #define DB_INDEX_MASK (~DB_MARKED) | |
| 129 | |
| 130 #define INDEX_SIZE (sizeof(unsigned)) /* size of one db_index entry */ | |
| 131 #define HEADER_SIZE (sizeof(DATA_BL) - INDEX_SIZE) /* size of data block header */ | |
| 132 | |
| 39 | 133 #define B0_FNAME_SIZE_ORG 900 /* what it was in older versions */ |
| 2267 | 134 #define B0_FNAME_SIZE_NOCRYPT 898 /* 2 bytes used for other things */ |
| 135 #define B0_FNAME_SIZE_CRYPT 890 /* 10 bytes used for other things */ | |
| 39 | 136 #define B0_UNAME_SIZE 40 |
| 137 #define B0_HNAME_SIZE 40 | |
| 7 | 138 /* |
| 139 * Restrict the numbers to 32 bits, otherwise most compilers will complain. | |
| 140 * This won't detect a 64 bit machine that only swaps a byte in the top 32 | |
| 141 * bits, but that is crazy anyway. | |
| 142 */ | |
| 143 #define B0_MAGIC_LONG 0x30313233L | |
| 144 #define B0_MAGIC_INT 0x20212223L | |
| 145 #define B0_MAGIC_SHORT 0x10111213L | |
| 146 #define B0_MAGIC_CHAR 0x55 | |
| 147 | |
| 148 /* | |
| 149 * Block zero holds all info about the swap file. | |
| 150 * | |
| 151 * NOTE: DEFINITION OF BLOCK 0 SHOULD NOT CHANGE! It would make all existing | |
| 152 * swap files unusable! | |
| 153 * | |
| 154 * If size of block0 changes anyway, adjust MIN_SWAP_PAGE_SIZE in vim.h!! | |
| 155 * | |
| 1228 | 156 * This block is built up of single bytes, to make it portable across |
| 7 | 157 * different machines. b0_magic_* is used to check the byte order and size of |
| 158 * variables, because the rest of the swap file is not portable. | |
| 159 */ | |
| 160 struct block0 | |
| 161 { | |
| 2267 | 162 char_u b0_id[2]; /* id for block 0: BLOCK0_ID0 and BLOCK0_ID1, |
| 6122 | 163 * BLOCK0_ID1_C0, BLOCK0_ID1_C1, etc. */ |
| 7 | 164 char_u b0_version[10]; /* Vim version string */ |
| 165 char_u b0_page_size[4];/* number of bytes per page */ | |
| 166 char_u b0_mtime[4]; /* last modification time of file */ | |
| 167 char_u b0_ino[4]; /* inode of b0_fname */ | |
| 168 char_u b0_pid[4]; /* process id of creator (or 0) */ | |
| 169 char_u b0_uname[B0_UNAME_SIZE]; /* name of user (uid if no name) */ | |
| 170 char_u b0_hname[B0_HNAME_SIZE]; /* host name (if it has a name) */ | |
| 39 | 171 char_u b0_fname[B0_FNAME_SIZE_ORG]; /* name of file being edited */ |
| 7 | 172 long b0_magic_long; /* check for byte order of long */ |
| 173 int b0_magic_int; /* check for byte order of int */ | |
| 174 short b0_magic_short; /* check for byte order of short */ | |
| 175 char_u b0_magic_char; /* check for last char */ | |
| 176 }; | |
| 39 | 177 |
| 178 /* | |
| 625 | 179 * Note: b0_dirty and b0_flags are put at the end of the file name. For very |
| 39 | 180 * long file names in older versions of Vim they are invalid. |
| 181 * The 'fileencoding' comes before b0_flags, with a NUL in front. But only | |
| 182 * when there is room, for very long file names it's omitted. | |
| 183 */ | |
| 184 #define B0_DIRTY 0x55 | |
| 2267 | 185 #define b0_dirty b0_fname[B0_FNAME_SIZE_ORG - 1] |
| 39 | 186 |
| 187 /* | |
| 188 * The b0_flags field is new in Vim 7.0. | |
| 189 */ | |
| 2267 | 190 #define b0_flags b0_fname[B0_FNAME_SIZE_ORG - 2] |
| 191 | |
| 192 /* | |
| 193 * Crypt seed goes here, 8 bytes. New in Vim 7.3. | |
| 194 * Without encryption these bytes may be used for 'fenc'. | |
| 195 */ | |
| 196 #define b0_seed b0_fname[B0_FNAME_SIZE_ORG - 2 - MF_SEED_LEN] | |
| 39 | 197 |
| 198 /* The lowest two bits contain the fileformat. Zero means it's not set | |
| 199 * (compatible with Vim 6.x), otherwise it's EOL_UNIX + 1, EOL_DOS + 1 or | |
| 200 * EOL_MAC + 1. */ | |
| 201 #define B0_FF_MASK 3 | |
| 202 | |
| 203 /* Swap file is in directory of edited file. Used to find the file from | |
| 204 * different mount points. */ | |
| 205 #define B0_SAME_DIR 4 | |
| 206 | |
| 207 /* The 'fileencoding' is at the end of b0_fname[], with a NUL in front of it. | |
| 208 * When empty there is only the NUL. */ | |
| 209 #define B0_HAS_FENC 8 | |
| 7 | 210 |
| 211 #define STACK_INCR 5 /* nr of entries added to ml_stack at a time */ | |
| 212 | |
| 213 /* | |
| 214 * The line number where the first mark may be is remembered. | |
| 215 * If it is 0 there are no marks at all. | |
| 216 * (always used for the current buffer only, no buffer change possible while | |
| 217 * executing a global command). | |
| 218 */ | |
| 219 static linenr_T lowest_marked = 0; | |
| 220 | |
| 221 /* | |
| 222 * arguments for ml_find_line() | |
| 223 */ | |
| 224 #define ML_DELETE 0x11 /* delete line */ | |
| 225 #define ML_INSERT 0x12 /* insert line */ | |
| 226 #define ML_FIND 0x13 /* just find the line */ | |
| 227 #define ML_FLUSH 0x02 /* flush locked block */ | |
| 228 #define ML_SIMPLE(x) (x & 0x10) /* DEL, INS or FIND */ | |
| 229 | |
| 2267 | 230 /* argument for ml_upd_block0() */ |
| 231 typedef enum { | |
| 232 UB_FNAME = 0 /* update timestamp and filename */ | |
| 233 , UB_SAME_DIR /* update the B0_SAME_DIR flag */ | |
| 234 , UB_CRYPT /* update crypt key */ | |
| 235 } upd_block0_T; | |
| 236 | |
| 237 #ifdef FEAT_CRYPT | |
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238 static void ml_set_b0_crypt(buf_T *buf, ZERO_BL *b0p); |
| 2267 | 239 #endif |
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240 static void ml_upd_block0(buf_T *buf, upd_block0_T what); |
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241 static void set_b0_fname(ZERO_BL *, buf_T *buf); |
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242 static void set_b0_dir_flag(ZERO_BL *b0p, buf_T *buf); |
| 39 | 243 #ifdef FEAT_MBYTE |
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244 static void add_b0_fenc(ZERO_BL *b0p, buf_T *buf); |
| 39 | 245 #endif |
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246 static time_t swapfile_info(char_u *); |
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247 static int recov_file_names(char_u **, char_u *, int prepend_dot); |
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248 static int ml_append_int(buf_T *, linenr_T, char_u *, colnr_T, int, int); |
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249 static int ml_delete_int(buf_T *, linenr_T, int); |
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250 static char_u *findswapname(buf_T *, char_u **, char_u *); |
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251 static void ml_flush_line(buf_T *); |
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252 static bhdr_T *ml_new_data(memfile_T *, int, int); |
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253 static bhdr_T *ml_new_ptr(memfile_T *); |
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254 static bhdr_T *ml_find_line(buf_T *, linenr_T, int); |
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255 static int ml_add_stack(buf_T *); |
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256 static void ml_lineadd(buf_T *, int); |
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257 static int b0_magic_wrong(ZERO_BL *); |
| 7 | 258 #ifdef CHECK_INODE |
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259 static int fnamecmp_ino(char_u *, char_u *, long); |
| 7 | 260 #endif |
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261 static void long_to_char(long, char_u *); |
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262 static long char_to_long(char_u *); |
| 2267 | 263 #ifdef FEAT_CRYPT |
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264 static cryptstate_T *ml_crypt_prepare(memfile_T *mfp, off_T offset, int reading); |
| 2267 | 265 #endif |
| 7 | 266 #ifdef FEAT_BYTEOFF |
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267 static void ml_updatechunk(buf_T *buf, long line, long len, int updtype); |
| 7 | 268 #endif |
| 269 | |
| 270 /* | |
| 625 | 271 * Open a new memline for "buf". |
| 7 | 272 * |
| 625 | 273 * Return FAIL for failure, OK otherwise. |
| 7 | 274 */ |
| 275 int | |
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276 ml_open(buf_T *buf) |
| 7 | 277 { |
| 278 memfile_T *mfp; | |
| 279 bhdr_T *hp = NULL; | |
| 280 ZERO_BL *b0p; | |
| 281 PTR_BL *pp; | |
| 282 DATA_BL *dp; | |
| 283 | |
| 625 | 284 /* |
| 285 * init fields in memline struct | |
| 286 */ | |
| 2267 | 287 buf->b_ml.ml_stack_size = 0; /* no stack yet */ |
| 625 | 288 buf->b_ml.ml_stack = NULL; /* no stack yet */ |
| 289 buf->b_ml.ml_stack_top = 0; /* nothing in the stack */ | |
| 290 buf->b_ml.ml_locked = NULL; /* no cached block */ | |
| 291 buf->b_ml.ml_line_lnum = 0; /* no cached line */ | |
| 7 | 292 #ifdef FEAT_BYTEOFF |
| 625 | 293 buf->b_ml.ml_chunksize = NULL; |
| 7 | 294 #endif |
| 295 | |
| 5737 | 296 if (cmdmod.noswapfile) |
| 297 buf->b_p_swf = FALSE; | |
| 298 | |
| 625 | 299 /* |
| 300 * When 'updatecount' is non-zero swap file may be opened later. | |
| 301 */ | |
| 302 if (p_uc && buf->b_p_swf) | |
| 303 buf->b_may_swap = TRUE; | |
| 7 | 304 else |
| 625 | 305 buf->b_may_swap = FALSE; |
| 306 | |
| 307 /* | |
| 308 * Open the memfile. No swap file is created yet. | |
| 309 */ | |
| 7 | 310 mfp = mf_open(NULL, 0); |
| 311 if (mfp == NULL) | |
| 312 goto error; | |
| 313 | |
| 625 | 314 buf->b_ml.ml_mfp = mfp; |
| 2267 | 315 #ifdef FEAT_CRYPT |
| 316 mfp->mf_buffer = buf; | |
| 317 #endif | |
| 625 | 318 buf->b_ml.ml_flags = ML_EMPTY; |
| 319 buf->b_ml.ml_line_count = 1; | |
| 13 | 320 #ifdef FEAT_LINEBREAK |
| 321 curwin->w_nrwidth_line_count = 0; | |
| 322 #endif | |
| 7 | 323 |
| 324 /* | |
| 325 * fill block0 struct and write page 0 | |
| 326 */ | |
| 327 if ((hp = mf_new(mfp, FALSE, 1)) == NULL) | |
| 328 goto error; | |
| 329 if (hp->bh_bnum != 0) | |
| 330 { | |
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331 IEMSG(_("E298: Didn't get block nr 0?")); |
| 7 | 332 goto error; |
| 333 } | |
| 334 b0p = (ZERO_BL *)(hp->bh_data); | |
| 335 | |
| 336 b0p->b0_id[0] = BLOCK0_ID0; | |
| 337 b0p->b0_id[1] = BLOCK0_ID1; | |
| 338 b0p->b0_magic_long = (long)B0_MAGIC_LONG; | |
| 339 b0p->b0_magic_int = (int)B0_MAGIC_INT; | |
| 340 b0p->b0_magic_short = (short)B0_MAGIC_SHORT; | |
| 341 b0p->b0_magic_char = B0_MAGIC_CHAR; | |
|
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patch 8.1.0023: gcc 8.1 warns for use of strncpy()
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
342 mch_memmove(b0p->b0_version, "VIM ", 4); |
| 7 | 343 STRNCPY(b0p->b0_version + 4, Version, 6); |
| 344 long_to_char((long)mfp->mf_page_size, b0p->b0_page_size); | |
| 625 | 345 |
| 800 | 346 #ifdef FEAT_SPELL |
| 347 if (!buf->b_spell) | |
| 348 #endif | |
| 625 | 349 { |
| 350 b0p->b0_dirty = buf->b_changed ? B0_DIRTY : 0; | |
| 351 b0p->b0_flags = get_fileformat(buf) + 1; | |
| 352 set_b0_fname(b0p, buf); | |
| 353 (void)get_user_name(b0p->b0_uname, B0_UNAME_SIZE); | |
| 354 b0p->b0_uname[B0_UNAME_SIZE - 1] = NUL; | |
| 355 mch_get_host_name(b0p->b0_hname, B0_HNAME_SIZE); | |
| 356 b0p->b0_hname[B0_HNAME_SIZE - 1] = NUL; | |
| 357 long_to_char(mch_get_pid(), b0p->b0_pid); | |
| 2267 | 358 #ifdef FEAT_CRYPT |
| 6122 | 359 ml_set_b0_crypt(buf, b0p); |
| 2267 | 360 #endif |
| 625 | 361 } |
| 7 | 362 |
| 363 /* | |
| 364 * Always sync block number 0 to disk, so we can check the file name in | |
| 2267 | 365 * the swap file in findswapname(). Don't do this for a help files or |
| 366 * a spell buffer though. | |
| 7 | 367 * Only works when there's a swapfile, otherwise it's done when the file |
| 368 * is created. | |
| 369 */ | |
| 370 mf_put(mfp, hp, TRUE, FALSE); | |
| 625 | 371 if (!buf->b_help && !B_SPELL(buf)) |
| 7 | 372 (void)mf_sync(mfp, 0); |
| 373 | |
| 625 | 374 /* |
| 375 * Fill in root pointer block and write page 1. | |
| 376 */ | |
| 7 | 377 if ((hp = ml_new_ptr(mfp)) == NULL) |
| 378 goto error; | |
| 379 if (hp->bh_bnum != 1) | |
| 380 { | |
|
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
381 IEMSG(_("E298: Didn't get block nr 1?")); |
| 7 | 382 goto error; |
| 383 } | |
| 384 pp = (PTR_BL *)(hp->bh_data); | |
| 385 pp->pb_count = 1; | |
| 386 pp->pb_pointer[0].pe_bnum = 2; | |
| 387 pp->pb_pointer[0].pe_page_count = 1; | |
| 388 pp->pb_pointer[0].pe_old_lnum = 1; | |
| 389 pp->pb_pointer[0].pe_line_count = 1; /* line count after insertion */ | |
| 390 mf_put(mfp, hp, TRUE, FALSE); | |
| 391 | |
| 625 | 392 /* |
| 393 * Allocate first data block and create an empty line 1. | |
| 394 */ | |
| 7 | 395 if ((hp = ml_new_data(mfp, FALSE, 1)) == NULL) |
| 396 goto error; | |
| 397 if (hp->bh_bnum != 2) | |
| 398 { | |
|
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
399 IEMSG(_("E298: Didn't get block nr 2?")); |
| 7 | 400 goto error; |
| 401 } | |
| 402 | |
| 403 dp = (DATA_BL *)(hp->bh_data); | |
| 404 dp->db_index[0] = --dp->db_txt_start; /* at end of block */ | |
| 405 dp->db_free -= 1 + INDEX_SIZE; | |
| 406 dp->db_line_count = 1; | |
| 2003 | 407 *((char_u *)dp + dp->db_txt_start) = NUL; /* empty line */ |
| 7 | 408 |
| 409 return OK; | |
| 410 | |
| 411 error: | |
| 412 if (mfp != NULL) | |
| 413 { | |
| 414 if (hp) | |
| 415 mf_put(mfp, hp, FALSE, FALSE); | |
| 416 mf_close(mfp, TRUE); /* will also free(mfp->mf_fname) */ | |
| 417 } | |
| 625 | 418 buf->b_ml.ml_mfp = NULL; |
| 7 | 419 return FAIL; |
| 420 } | |
| 421 | |
| 2267 | 422 #if defined(FEAT_CRYPT) || defined(PROTO) |
| 423 /* | |
| 6130 | 424 * Prepare encryption for "buf" for the current key and method. |
| 425 */ | |
| 426 static void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
427 ml_set_mfp_crypt(buf_T *buf) |
| 6130 | 428 { |
| 429 if (*buf->b_p_key != NUL) | |
| 430 { | |
| 431 int method_nr = crypt_get_method_nr(buf); | |
| 432 | |
| 433 if (method_nr > CRYPT_M_ZIP) | |
| 434 { | |
| 435 /* Generate a seed and store it in the memfile. */ | |
| 436 sha2_seed(buf->b_ml.ml_mfp->mf_seed, MF_SEED_LEN, NULL, 0); | |
| 437 } | |
| 438 } | |
| 439 } | |
| 440 | |
| 441 /* | |
| 2267 | 442 * Prepare encryption for "buf" with block 0 "b0p". |
| 443 */ | |
| 444 static void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
445 ml_set_b0_crypt(buf_T *buf, ZERO_BL *b0p) |
| 2267 | 446 { |
| 447 if (*buf->b_p_key == NUL) | |
| 448 b0p->b0_id[1] = BLOCK0_ID1; | |
| 449 else | |
| 450 { | |
| 6122 | 451 int method_nr = crypt_get_method_nr(buf); |
| 452 | |
| 453 b0p->b0_id[1] = id1_codes[method_nr]; | |
| 454 if (method_nr > CRYPT_M_ZIP) | |
| 2267 | 455 { |
| 456 /* Generate a seed and store it in block 0 and in the memfile. */ | |
| 457 sha2_seed(&b0p->b0_seed, MF_SEED_LEN, NULL, 0); | |
| 458 mch_memmove(buf->b_ml.ml_mfp->mf_seed, &b0p->b0_seed, MF_SEED_LEN); | |
| 459 } | |
| 460 } | |
| 461 } | |
| 462 | |
| 463 /* | |
| 464 * Called after the crypt key or 'cryptmethod' was changed for "buf". | |
| 465 * Will apply this to the swapfile. | |
| 466 * "old_key" is the previous key. It is equal to buf->b_p_key when | |
| 467 * 'cryptmethod' is changed. | |
|
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Bram Moolenaar <bram@vim.org>
parents:
2283
diff
changeset
|
468 * "old_cm" is the previous 'cryptmethod'. It is equal to the current |
|
d8e4b27cef80
Change 'cryptmethod' from a number to a string option. Make it global-local.
Bram Moolenaar <bram@vim.org>
parents:
2283
diff
changeset
|
469 * 'cryptmethod' when 'key' is changed. |
| 2267 | 470 */ |
| 471 void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
472 ml_set_crypt_key( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
473 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
474 char_u *old_key, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
475 char_u *old_cm) |
| 2267 | 476 { |
| 477 memfile_T *mfp = buf->b_ml.ml_mfp; | |
| 478 bhdr_T *hp; | |
| 479 int page_count; | |
| 480 int idx; | |
| 481 long error; | |
| 482 infoptr_T *ip; | |
| 483 PTR_BL *pp; | |
| 484 DATA_BL *dp; | |
| 485 blocknr_T bnum; | |
| 486 int top; | |
| 6817 | 487 int old_method; |
| 2267 | 488 |
|
2483
7901306c5a34
Fix: when setting crypt key seed was not updated when the swap file wasn't
Bram Moolenaar <bram@vim.org>
parents:
2408
diff
changeset
|
489 if (mfp == NULL) |
| 2267 | 490 return; /* no memfile yet, nothing to do */ |
| 6817 | 491 old_method = crypt_method_nr_from_name(old_cm); |
| 492 | |
| 493 /* First make sure the swapfile is in a consistent state, using the old | |
| 494 * key and method. */ | |
| 495 { | |
| 496 char_u *new_key = buf->b_p_key; | |
| 497 char_u *new_buf_cm = buf->b_p_cm; | |
| 498 | |
| 499 buf->b_p_key = old_key; | |
| 500 buf->b_p_cm = old_cm; | |
| 501 ml_preserve(buf, FALSE); | |
| 502 buf->b_p_key = new_key; | |
| 503 buf->b_p_cm = new_buf_cm; | |
| 504 } | |
| 2267 | 505 |
| 506 /* Set the key, method and seed to be used for reading, these must be the | |
| 507 * old values. */ | |
| 508 mfp->mf_old_key = old_key; | |
| 6817 | 509 mfp->mf_old_cm = old_method; |
| 510 if (old_method > 0 && *old_key != NUL) | |
| 2267 | 511 mch_memmove(mfp->mf_old_seed, mfp->mf_seed, MF_SEED_LEN); |
| 512 | |
| 513 /* Update block 0 with the crypt flag and may set a new seed. */ | |
| 514 ml_upd_block0(buf, UB_CRYPT); | |
| 515 | |
| 516 if (mfp->mf_infile_count > 2) | |
| 517 { | |
| 518 /* | |
| 519 * Need to read back all data blocks from disk, decrypt them with the | |
| 520 * old key/method and mark them to be written. The algorithm is | |
| 521 * similar to what happens in ml_recover(), but we skip negative block | |
| 522 * numbers. | |
| 523 */ | |
| 524 ml_flush_line(buf); /* flush buffered line */ | |
| 525 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush locked block */ | |
| 526 | |
| 527 hp = NULL; | |
| 528 bnum = 1; /* start with block 1 */ | |
| 529 page_count = 1; /* which is 1 page */ | |
| 530 idx = 0; /* start with first index in block 1 */ | |
| 531 error = 0; | |
| 532 buf->b_ml.ml_stack_top = 0; | |
|
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patch 8.0.1496: clearing a pointer takes two lines
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parents:
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diff
changeset
|
533 VIM_CLEAR(buf->b_ml.ml_stack); |
| 2267 | 534 buf->b_ml.ml_stack_size = 0; /* no stack yet */ |
| 535 | |
| 536 for ( ; !got_int; line_breakcheck()) | |
| 537 { | |
| 538 if (hp != NULL) | |
| 539 mf_put(mfp, hp, FALSE, FALSE); /* release previous block */ | |
| 540 | |
| 541 /* get the block (pointer or data) */ | |
| 542 if ((hp = mf_get(mfp, (blocknr_T)bnum, page_count)) == NULL) | |
| 543 { | |
| 544 if (bnum == 1) | |
| 545 break; | |
| 546 ++error; | |
| 547 } | |
| 548 else | |
| 549 { | |
| 550 pp = (PTR_BL *)(hp->bh_data); | |
| 551 if (pp->pb_id == PTR_ID) /* it is a pointer block */ | |
| 552 { | |
| 553 if (pp->pb_count == 0) | |
| 554 { | |
| 555 /* empty block? */ | |
| 556 ++error; | |
| 557 } | |
| 558 else if (idx < (int)pp->pb_count) /* go a block deeper */ | |
| 559 { | |
| 560 if (pp->pb_pointer[idx].pe_bnum < 0) | |
| 561 { | |
| 6817 | 562 /* Skip data block with negative block number. |
| 563 * Should not happen, because of the ml_preserve() | |
| 564 * above. Get same block again for next index. */ | |
| 565 ++idx; | |
| 2267 | 566 continue; |
| 567 } | |
| 568 | |
| 569 /* going one block deeper in the tree, new entry in | |
| 570 * stack */ | |
| 571 if ((top = ml_add_stack(buf)) < 0) | |
| 572 { | |
| 573 ++error; | |
| 574 break; /* out of memory */ | |
| 575 } | |
| 576 ip = &(buf->b_ml.ml_stack[top]); | |
| 577 ip->ip_bnum = bnum; | |
| 578 ip->ip_index = idx; | |
| 579 | |
| 580 bnum = pp->pb_pointer[idx].pe_bnum; | |
| 581 page_count = pp->pb_pointer[idx].pe_page_count; | |
| 6817 | 582 idx = 0; |
| 2267 | 583 continue; |
| 584 } | |
| 585 } | |
| 586 else /* not a pointer block */ | |
| 587 { | |
| 588 dp = (DATA_BL *)(hp->bh_data); | |
| 589 if (dp->db_id != DATA_ID) /* block id wrong */ | |
| 590 ++error; | |
| 591 else | |
| 592 { | |
| 593 /* It is a data block, need to write it back to disk. */ | |
| 594 mf_put(mfp, hp, TRUE, FALSE); | |
| 595 hp = NULL; | |
| 596 } | |
| 597 } | |
| 598 } | |
| 599 | |
| 600 if (buf->b_ml.ml_stack_top == 0) /* finished */ | |
| 601 break; | |
| 602 | |
| 603 /* go one block up in the tree */ | |
| 604 ip = &(buf->b_ml.ml_stack[--(buf->b_ml.ml_stack_top)]); | |
| 605 bnum = ip->ip_bnum; | |
| 606 idx = ip->ip_index + 1; /* go to next index */ | |
| 607 page_count = 1; | |
| 608 } | |
| 6817 | 609 if (hp != NULL) |
| 610 mf_put(mfp, hp, FALSE, FALSE); /* release previous block */ | |
| 2657 | 611 |
| 612 if (error > 0) | |
| 613 EMSG(_("E843: Error while updating swap file crypt")); | |
| 2267 | 614 } |
| 615 | |
| 616 mfp->mf_old_key = NULL; | |
| 617 } | |
| 618 #endif | |
| 619 | |
| 7 | 620 /* |
| 621 * ml_setname() is called when the file name of "buf" has been changed. | |
| 622 * It may rename the swap file. | |
| 623 */ | |
| 624 void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
625 ml_setname(buf_T *buf) |
| 7 | 626 { |
| 627 int success = FALSE; | |
| 628 memfile_T *mfp; | |
| 629 char_u *fname; | |
| 630 char_u *dirp; | |
|
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commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
631 #if defined(MSWIN) |
| 7 | 632 char_u *p; |
| 633 #endif | |
| 634 | |
| 635 mfp = buf->b_ml.ml_mfp; | |
| 636 if (mfp->mf_fd < 0) /* there is no swap file yet */ | |
| 637 { | |
| 638 /* | |
| 639 * When 'updatecount' is 0 and 'noswapfile' there is no swap file. | |
| 640 * For help files we will make a swap file now. | |
| 641 */ | |
| 5737 | 642 if (p_uc != 0 && !cmdmod.noswapfile) |
| 7 | 643 ml_open_file(buf); /* create a swap file */ |
| 644 return; | |
| 645 } | |
| 646 | |
| 647 /* | |
| 648 * Try all directories in the 'directory' option. | |
| 649 */ | |
| 650 dirp = p_dir; | |
| 651 for (;;) | |
| 652 { | |
| 653 if (*dirp == NUL) /* tried all directories, fail */ | |
| 654 break; | |
| 43 | 655 fname = findswapname(buf, &dirp, mfp->mf_fname); |
| 656 /* alloc's fname */ | |
| 3158 | 657 if (dirp == NULL) /* out of memory */ |
| 658 break; | |
| 7 | 659 if (fname == NULL) /* no file name found for this dir */ |
| 660 continue; | |
| 661 | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
662 #if defined(MSWIN) |
| 7 | 663 /* |
| 664 * Set full pathname for swap file now, because a ":!cd dir" may | |
| 665 * change directory without us knowing it. | |
| 666 */ | |
| 667 p = FullName_save(fname, FALSE); | |
| 668 vim_free(fname); | |
| 669 fname = p; | |
| 670 if (fname == NULL) | |
| 671 continue; | |
| 672 #endif | |
| 673 /* if the file name is the same we don't have to do anything */ | |
| 674 if (fnamecmp(fname, mfp->mf_fname) == 0) | |
| 675 { | |
| 676 vim_free(fname); | |
| 677 success = TRUE; | |
| 678 break; | |
| 679 } | |
| 680 /* need to close the swap file before renaming */ | |
| 681 if (mfp->mf_fd >= 0) | |
| 682 { | |
| 683 close(mfp->mf_fd); | |
| 684 mfp->mf_fd = -1; | |
| 685 } | |
| 686 | |
| 687 /* try to rename the swap file */ | |
| 688 if (vim_rename(mfp->mf_fname, fname) == 0) | |
| 689 { | |
| 690 success = TRUE; | |
| 691 vim_free(mfp->mf_fname); | |
| 692 mfp->mf_fname = fname; | |
| 693 vim_free(mfp->mf_ffname); | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
694 #if defined(MSWIN) |
| 7 | 695 mfp->mf_ffname = NULL; /* mf_fname is full pathname already */ |
| 696 #else | |
| 697 mf_set_ffname(mfp); | |
| 698 #endif | |
| 2267 | 699 ml_upd_block0(buf, UB_SAME_DIR); |
| 7 | 700 break; |
| 701 } | |
| 702 vim_free(fname); /* this fname didn't work, try another */ | |
| 703 } | |
| 704 | |
| 705 if (mfp->mf_fd == -1) /* need to (re)open the swap file */ | |
| 706 { | |
| 707 mfp->mf_fd = mch_open((char *)mfp->mf_fname, O_RDWR | O_EXTRA, 0); | |
| 708 if (mfp->mf_fd < 0) | |
| 709 { | |
| 710 /* could not (re)open the swap file, what can we do???? */ | |
| 711 EMSG(_("E301: Oops, lost the swap file!!!")); | |
| 712 return; | |
| 713 } | |
| 2003 | 714 #ifdef HAVE_FD_CLOEXEC |
| 715 { | |
| 716 int fdflags = fcntl(mfp->mf_fd, F_GETFD); | |
| 717 if (fdflags >= 0 && (fdflags & FD_CLOEXEC) == 0) | |
|
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commit https://github.com/vim/vim/commit/fbc4b4db3a9690906a96e16724350a6241cf32a5
Christian Brabandt <cb@256bit.org>
parents:
7881
diff
changeset
|
718 (void)fcntl(mfp->mf_fd, F_SETFD, fdflags | FD_CLOEXEC); |
| 2003 | 719 } |
| 720 #endif | |
| 7 | 721 } |
| 722 if (!success) | |
| 723 EMSG(_("E302: Could not rename swap file")); | |
| 724 } | |
| 725 | |
| 726 /* | |
| 727 * Open a file for the memfile for all buffers that are not readonly or have | |
| 728 * been modified. | |
| 729 * Used when 'updatecount' changes from zero to non-zero. | |
| 730 */ | |
| 731 void | |
|
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parents:
7803
diff
changeset
|
732 ml_open_files(void) |
| 7 | 733 { |
| 734 buf_T *buf; | |
| 735 | |
|
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commit https://github.com/vim/vim/commit/2932359000b2f918d5fade79ea4d124d5943cd07
Christian Brabandt <cb@256bit.org>
parents:
9536
diff
changeset
|
736 FOR_ALL_BUFFERS(buf) |
| 7 | 737 if (!buf->b_p_ro || buf->b_changed) |
| 738 ml_open_file(buf); | |
| 739 } | |
| 740 | |
| 741 /* | |
| 742 * Open a swap file for an existing memfile, if there is no swap file yet. | |
| 743 * If we are unable to find a file name, mf_fname will be NULL | |
| 744 * and the memfile will be in memory only (no recovery possible). | |
| 745 */ | |
| 746 void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
747 ml_open_file(buf_T *buf) |
| 7 | 748 { |
| 749 memfile_T *mfp; | |
| 750 char_u *fname; | |
| 751 char_u *dirp; | |
| 752 | |
| 753 mfp = buf->b_ml.ml_mfp; | |
| 5737 | 754 if (mfp == NULL || mfp->mf_fd >= 0 || !buf->b_p_swf || cmdmod.noswapfile) |
| 7 | 755 return; /* nothing to do */ |
| 756 | |
| 748 | 757 #ifdef FEAT_SPELL |
| 625 | 758 /* For a spell buffer use a temp file name. */ |
| 759 if (buf->b_spell) | |
| 760 { | |
| 6721 | 761 fname = vim_tempname('s', FALSE); |
| 625 | 762 if (fname != NULL) |
| 763 (void)mf_open_file(mfp, fname); /* consumes fname! */ | |
| 764 buf->b_may_swap = FALSE; | |
| 765 return; | |
| 766 } | |
| 767 #endif | |
| 768 | |
| 7 | 769 /* |
| 770 * Try all directories in 'directory' option. | |
| 771 */ | |
| 772 dirp = p_dir; | |
| 773 for (;;) | |
| 774 { | |
| 775 if (*dirp == NUL) | |
| 776 break; | |
|
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777 /* There is a small chance that between choosing the swap file name |
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778 * and creating it, another Vim creates the file. In that case the |
| 7 | 779 * creation will fail and we will use another directory. */ |
| 43 | 780 fname = findswapname(buf, &dirp, NULL); /* allocates fname */ |
| 3158 | 781 if (dirp == NULL) |
| 782 break; /* out of memory */ | |
| 7 | 783 if (fname == NULL) |
| 784 continue; | |
| 785 if (mf_open_file(mfp, fname) == OK) /* consumes fname! */ | |
| 786 { | |
|
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|
787 #if defined(MSWIN) |
| 7 | 788 /* |
| 789 * set full pathname for swap file now, because a ":!cd dir" may | |
| 790 * change directory without us knowing it. | |
| 791 */ | |
| 792 mf_fullname(mfp); | |
| 793 #endif | |
| 2267 | 794 ml_upd_block0(buf, UB_SAME_DIR); |
| 39 | 795 |
| 7 | 796 /* Flush block zero, so others can read it */ |
| 797 if (mf_sync(mfp, MFS_ZERO) == OK) | |
| 630 | 798 { |
| 799 /* Mark all blocks that should be in the swapfile as dirty. | |
| 800 * Needed for when the 'swapfile' option was reset, so that | |
| 801 * the swap file was deleted, and then on again. */ | |
| 802 mf_set_dirty(mfp); | |
| 7 | 803 break; |
| 630 | 804 } |
| 7 | 805 /* Writing block 0 failed: close the file and try another dir */ |
| 806 mf_close_file(buf, FALSE); | |
| 807 } | |
| 808 } | |
| 809 | |
| 810 if (mfp->mf_fname == NULL) /* Failed! */ | |
| 811 { | |
| 812 need_wait_return = TRUE; /* call wait_return later */ | |
| 813 ++no_wait_return; | |
| 814 (void)EMSG2(_("E303: Unable to open swap file for \"%s\", recovery impossible"), | |
| 3839 | 815 buf_spname(buf) != NULL ? buf_spname(buf) : buf->b_fname); |
| 7 | 816 --no_wait_return; |
| 817 } | |
| 818 | |
| 819 /* don't try to open a swap file again */ | |
| 820 buf->b_may_swap = FALSE; | |
| 821 } | |
| 822 | |
| 823 /* | |
| 824 * If still need to create a swap file, and starting to edit a not-readonly | |
| 825 * file, or reading into an existing buffer, create a swap file now. | |
| 826 */ | |
| 827 void | |
|
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828 check_need_swap( |
|
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829 int newfile) // reading file into new buffer |
| 7 | 830 { |
|
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831 int old_msg_silent = msg_silent; // might be reset by an E325 message |
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832 |
| 7 | 833 if (curbuf->b_may_swap && (!curbuf->b_p_ro || !newfile)) |
| 834 ml_open_file(curbuf); | |
|
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835 msg_silent = old_msg_silent; |
| 7 | 836 } |
| 837 | |
| 838 /* | |
| 839 * Close memline for buffer 'buf'. | |
| 840 * If 'del_file' is TRUE, delete the swap file | |
| 841 */ | |
| 842 void | |
|
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843 ml_close(buf_T *buf, int del_file) |
| 7 | 844 { |
| 845 if (buf->b_ml.ml_mfp == NULL) /* not open */ | |
| 846 return; | |
| 847 mf_close(buf->b_ml.ml_mfp, del_file); /* close the .swp file */ | |
| 848 if (buf->b_ml.ml_line_lnum != 0 && (buf->b_ml.ml_flags & ML_LINE_DIRTY)) | |
| 849 vim_free(buf->b_ml.ml_line_ptr); | |
| 850 vim_free(buf->b_ml.ml_stack); | |
| 851 #ifdef FEAT_BYTEOFF | |
|
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852 VIM_CLEAR(buf->b_ml.ml_chunksize); |
| 7 | 853 #endif |
| 854 buf->b_ml.ml_mfp = NULL; | |
| 855 | |
| 856 /* Reset the "recovered" flag, give the ATTENTION prompt the next time | |
| 857 * this buffer is loaded. */ | |
| 858 buf->b_flags &= ~BF_RECOVERED; | |
| 859 } | |
| 860 | |
| 861 /* | |
| 862 * Close all existing memlines and memfiles. | |
| 863 * Only used when exiting. | |
| 864 * When 'del_file' is TRUE, delete the memfiles. | |
| 165 | 865 * But don't delete files that were ":preserve"d when we are POSIX compatible. |
| 7 | 866 */ |
| 867 void | |
|
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868 ml_close_all(int del_file) |
| 7 | 869 { |
| 870 buf_T *buf; | |
| 871 | |
|
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872 FOR_ALL_BUFFERS(buf) |
| 165 | 873 ml_close(buf, del_file && ((buf->b_flags & BF_PRESERVED) == 0 |
| 874 || vim_strchr(p_cpo, CPO_PRESERVE) == NULL)); | |
| 5519 | 875 #ifdef FEAT_SPELL |
| 876 spell_delete_wordlist(); /* delete the internal wordlist */ | |
| 877 #endif | |
| 7 | 878 #ifdef TEMPDIRNAMES |
| 5519 | 879 vim_deltempdir(); /* delete created temp directory */ |
| 7 | 880 #endif |
| 881 } | |
| 882 | |
| 883 /* | |
| 884 * Close all memfiles for not modified buffers. | |
| 885 * Only use just before exiting! | |
| 886 */ | |
| 887 void | |
|
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888 ml_close_notmod(void) |
| 7 | 889 { |
| 890 buf_T *buf; | |
| 891 | |
|
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892 FOR_ALL_BUFFERS(buf) |
| 7 | 893 if (!bufIsChanged(buf)) |
| 894 ml_close(buf, TRUE); /* close all not-modified buffers */ | |
| 895 } | |
| 896 | |
| 897 /* | |
| 898 * Update the timestamp in the .swp file. | |
| 899 * Used when the file has been written. | |
| 900 */ | |
| 901 void | |
|
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902 ml_timestamp(buf_T *buf) |
| 7 | 903 { |
| 2267 | 904 ml_upd_block0(buf, UB_FNAME); |
| 905 } | |
| 906 | |
| 907 /* | |
| 908 * Return FAIL when the ID of "b0p" is wrong. | |
| 909 */ | |
| 910 static int | |
|
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911 ml_check_b0_id(ZERO_BL *b0p) |
| 2267 | 912 { |
| 913 if (b0p->b0_id[0] != BLOCK0_ID0 | |
| 914 || (b0p->b0_id[1] != BLOCK0_ID1 | |
| 915 && b0p->b0_id[1] != BLOCK0_ID1_C0 | |
| 6122 | 916 && b0p->b0_id[1] != BLOCK0_ID1_C1 |
| 917 && b0p->b0_id[1] != BLOCK0_ID1_C2) | |
| 2267 | 918 ) |
| 919 return FAIL; | |
| 920 return OK; | |
| 39 | 921 } |
| 922 | |
| 923 /* | |
| 924 * Update the timestamp or the B0_SAME_DIR flag of the .swp file. | |
| 925 */ | |
| 926 static void | |
|
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927 ml_upd_block0(buf_T *buf, upd_block0_T what) |
| 39 | 928 { |
| 7 | 929 memfile_T *mfp; |
| 930 bhdr_T *hp; | |
| 931 ZERO_BL *b0p; | |
| 932 | |
| 933 mfp = buf->b_ml.ml_mfp; | |
| 6130 | 934 if (mfp == NULL) |
| 7 | 935 return; |
| 6130 | 936 hp = mf_get(mfp, (blocknr_T)0, 1); |
| 937 if (hp == NULL) | |
| 938 { | |
| 939 #ifdef FEAT_CRYPT | |
| 940 /* Possibly update the seed in the memfile before there is a block0. */ | |
| 941 if (what == UB_CRYPT) | |
| 942 ml_set_mfp_crypt(buf); | |
| 943 #endif | |
| 944 return; | |
| 945 } | |
| 946 | |
| 7 | 947 b0p = (ZERO_BL *)(hp->bh_data); |
| 2267 | 948 if (ml_check_b0_id(b0p) == FAIL) |
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949 IEMSG(_("E304: ml_upd_block0(): Didn't get block 0??")); |
| 7 | 950 else |
| 39 | 951 { |
| 2267 | 952 if (what == UB_FNAME) |
| 39 | 953 set_b0_fname(b0p, buf); |
| 2267 | 954 #ifdef FEAT_CRYPT |
| 955 else if (what == UB_CRYPT) | |
| 956 ml_set_b0_crypt(buf, b0p); | |
| 957 #endif | |
| 958 else /* what == UB_SAME_DIR */ | |
| 39 | 959 set_b0_dir_flag(b0p, buf); |
| 960 } | |
| 7 | 961 mf_put(mfp, hp, TRUE, FALSE); |
| 962 } | |
| 963 | |
| 964 /* | |
| 965 * Write file name and timestamp into block 0 of a swap file. | |
| 966 * Also set buf->b_mtime. | |
| 967 * Don't use NameBuff[]!!! | |
| 968 */ | |
| 969 static void | |
|
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970 set_b0_fname(ZERO_BL *b0p, buf_T *buf) |
| 7 | 971 { |
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972 stat_T st; |
| 7 | 973 |
| 974 if (buf->b_ffname == NULL) | |
| 975 b0p->b0_fname[0] = NUL; | |
| 976 else | |
| 977 { | |
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978 #if defined(MSWIN) || defined(AMIGA) |
| 39 | 979 /* Systems that cannot translate "~user" back into a path: copy the |
| 980 * file name unmodified. Do use slashes instead of backslashes for | |
| 981 * portability. */ | |
| 2267 | 982 vim_strncpy(b0p->b0_fname, buf->b_ffname, B0_FNAME_SIZE_CRYPT - 1); |
| 39 | 983 # ifdef BACKSLASH_IN_FILENAME |
| 984 forward_slash(b0p->b0_fname); | |
| 985 # endif | |
| 7 | 986 #else |
| 987 size_t flen, ulen; | |
| 988 char_u uname[B0_UNAME_SIZE]; | |
| 989 | |
| 990 /* | |
| 991 * For a file under the home directory of the current user, we try to | |
| 992 * replace the home directory path with "~user". This helps when | |
| 993 * editing the same file on different machines over a network. | |
| 994 * First replace home dir path with "~/" with home_replace(). | |
| 995 * Then insert the user name to get "~user/". | |
| 996 */ | |
| 2267 | 997 home_replace(NULL, buf->b_ffname, b0p->b0_fname, |
| 998 B0_FNAME_SIZE_CRYPT, TRUE); | |
| 7 | 999 if (b0p->b0_fname[0] == '~') |
| 1000 { | |
| 1001 flen = STRLEN(b0p->b0_fname); | |
| 1002 /* If there is no user name or it is too long, don't use "~/" */ | |
| 1003 if (get_user_name(uname, B0_UNAME_SIZE) == FAIL | |
| 2267 | 1004 || (ulen = STRLEN(uname)) + flen > B0_FNAME_SIZE_CRYPT - 1) |
| 1005 vim_strncpy(b0p->b0_fname, buf->b_ffname, | |
| 1006 B0_FNAME_SIZE_CRYPT - 1); | |
| 7 | 1007 else |
| 1008 { | |
| 1009 mch_memmove(b0p->b0_fname + ulen + 1, b0p->b0_fname + 1, flen); | |
| 1010 mch_memmove(b0p->b0_fname + 1, uname, ulen); | |
| 1011 } | |
| 1012 } | |
| 1013 #endif | |
| 1014 if (mch_stat((char *)buf->b_ffname, &st) >= 0) | |
| 1015 { | |
| 1016 long_to_char((long)st.st_mtime, b0p->b0_mtime); | |
| 1017 #ifdef CHECK_INODE | |
| 1018 long_to_char((long)st.st_ino, b0p->b0_ino); | |
| 1019 #endif | |
| 1020 buf_store_time(buf, &st, buf->b_ffname); | |
| 1021 buf->b_mtime_read = buf->b_mtime; | |
| 1022 } | |
| 1023 else | |
| 1024 { | |
| 1025 long_to_char(0L, b0p->b0_mtime); | |
| 1026 #ifdef CHECK_INODE | |
| 1027 long_to_char(0L, b0p->b0_ino); | |
| 1028 #endif | |
| 1029 buf->b_mtime = 0; | |
| 1030 buf->b_mtime_read = 0; | |
| 1031 buf->b_orig_size = 0; | |
| 1032 buf->b_orig_mode = 0; | |
| 1033 } | |
| 1034 } | |
| 39 | 1035 |
| 1036 #ifdef FEAT_MBYTE | |
| 1037 /* Also add the 'fileencoding' if there is room. */ | |
| 1038 add_b0_fenc(b0p, curbuf); | |
| 1039 #endif | |
| 7 | 1040 } |
| 1041 | |
| 1042 /* | |
| 39 | 1043 * Update the B0_SAME_DIR flag of the swap file. It's set if the file and the |
| 1044 * swapfile for "buf" are in the same directory. | |
| 1045 * This is fail safe: if we are not sure the directories are equal the flag is | |
| 1046 * not set. | |
| 1047 */ | |
| 1048 static void | |
|
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1049 set_b0_dir_flag(ZERO_BL *b0p, buf_T *buf) |
| 39 | 1050 { |
| 1051 if (same_directory(buf->b_ml.ml_mfp->mf_fname, buf->b_ffname)) | |
| 1052 b0p->b0_flags |= B0_SAME_DIR; | |
| 1053 else | |
| 1054 b0p->b0_flags &= ~B0_SAME_DIR; | |
| 1055 } | |
| 1056 | |
| 1057 #ifdef FEAT_MBYTE | |
| 1058 /* | |
| 1059 * When there is room, add the 'fileencoding' to block zero. | |
| 1060 */ | |
| 1061 static void | |
|
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1062 add_b0_fenc( |
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1063 ZERO_BL *b0p, |
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1064 buf_T *buf) |
| 39 | 1065 { |
| 1066 int n; | |
| 2267 | 1067 int size = B0_FNAME_SIZE_NOCRYPT; |
| 1068 | |
| 1069 # ifdef FEAT_CRYPT | |
| 1070 /* Without encryption use the same offset as in Vim 7.2 to be compatible. | |
| 1071 * With encryption it's OK to move elsewhere, the swap file is not | |
| 1072 * compatible anyway. */ | |
| 1073 if (*buf->b_p_key != NUL) | |
| 1074 size = B0_FNAME_SIZE_CRYPT; | |
| 1075 # endif | |
| 39 | 1076 |
| 835 | 1077 n = (int)STRLEN(buf->b_p_fenc); |
| 2267 | 1078 if ((int)STRLEN(b0p->b0_fname) + n + 1 > size) |
| 39 | 1079 b0p->b0_flags &= ~B0_HAS_FENC; |
| 1080 else | |
| 1081 { | |
| 2267 | 1082 mch_memmove((char *)b0p->b0_fname + size - n, |
| 39 | 1083 (char *)buf->b_p_fenc, (size_t)n); |
| 2267 | 1084 *(b0p->b0_fname + size - n - 1) = NUL; |
| 39 | 1085 b0p->b0_flags |= B0_HAS_FENC; |
| 1086 } | |
| 1087 } | |
| 1088 #endif | |
| 1089 | |
| 1090 | |
| 1091 /* | |
| 2267 | 1092 * Try to recover curbuf from the .swp file. |
| 7 | 1093 */ |
| 1094 void | |
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1095 ml_recover(void) |
| 7 | 1096 { |
| 1097 buf_T *buf = NULL; | |
| 1098 memfile_T *mfp = NULL; | |
| 1099 char_u *fname; | |
| 2267 | 1100 char_u *fname_used = NULL; |
| 7 | 1101 bhdr_T *hp = NULL; |
| 1102 ZERO_BL *b0p; | |
| 39 | 1103 int b0_ff; |
| 1104 char_u *b0_fenc = NULL; | |
| 2267 | 1105 #ifdef FEAT_CRYPT |
| 1106 int b0_cm = -1; | |
| 1107 #endif | |
| 7 | 1108 PTR_BL *pp; |
| 1109 DATA_BL *dp; | |
| 1110 infoptr_T *ip; | |
| 1111 blocknr_T bnum; | |
| 1112 int page_count; | |
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1113 stat_T org_stat, swp_stat; |
| 7 | 1114 int len; |
| 1115 int directly; | |
| 1116 linenr_T lnum; | |
| 1117 char_u *p; | |
| 1118 int i; | |
| 1119 long error; | |
| 1120 int cannot_open; | |
| 1121 linenr_T line_count; | |
| 1122 int has_error; | |
| 1123 int idx; | |
| 1124 int top; | |
| 1125 int txt_start; | |
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1126 off_T size; |
| 7 | 1127 int called_from_main; |
| 1128 int serious_error = TRUE; | |
| 1129 long mtime; | |
| 1130 int attr; | |
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1131 int orig_file_status = NOTDONE; |
| 7 | 1132 |
| 1133 recoverymode = TRUE; | |
| 1134 called_from_main = (curbuf->b_ml.ml_mfp == NULL); | |
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1135 attr = HL_ATTR(HLF_E); |
| 1975 | 1136 |
| 1137 /* | |
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e311187347c1
patch 8.0.1363: recovering does not work when swap file ends in .stz
Christian Brabandt <cb@256bit.org>
parents:
12477
diff
changeset
|
1138 * If the file name ends in ".s[a-w][a-z]" we assume this is the swap file. |
| 1975 | 1139 * Otherwise a search is done to find the swap file(s). |
| 1140 */ | |
| 7 | 1141 fname = curbuf->b_fname; |
| 1142 if (fname == NULL) /* When there is no file name */ | |
| 1143 fname = (char_u *)""; | |
| 1144 len = (int)STRLEN(fname); | |
| 1145 if (len >= 4 && | |
| 2823 | 1146 #if defined(VMS) |
|
10889
5780bd3a5a7e
patch 8.0.0334: can't access b:changedtick from a dict reference
Christian Brabandt <cb@256bit.org>
parents:
10575
diff
changeset
|
1147 STRNICMP(fname + len - 4, "_s", 2) |
| 7 | 1148 #else |
|
10889
5780bd3a5a7e
patch 8.0.0334: can't access b:changedtick from a dict reference
Christian Brabandt <cb@256bit.org>
parents:
10575
diff
changeset
|
1149 STRNICMP(fname + len - 4, ".s", 2) |
| 7 | 1150 #endif |
|
10889
5780bd3a5a7e
patch 8.0.0334: can't access b:changedtick from a dict reference
Christian Brabandt <cb@256bit.org>
parents:
10575
diff
changeset
|
1151 == 0 |
|
12975
e311187347c1
patch 8.0.1363: recovering does not work when swap file ends in .stz
Christian Brabandt <cb@256bit.org>
parents:
12477
diff
changeset
|
1152 && vim_strchr((char_u *)"abcdefghijklmnopqrstuvw", |
|
e311187347c1
patch 8.0.1363: recovering does not work when swap file ends in .stz
Christian Brabandt <cb@256bit.org>
parents:
12477
diff
changeset
|
1153 TOLOWER_ASC(fname[len - 2])) != NULL |
| 1975 | 1154 && ASCII_ISALPHA(fname[len - 1])) |
| 7 | 1155 { |
| 1156 directly = TRUE; | |
| 2267 | 1157 fname_used = vim_strsave(fname); /* make a copy for mf_open() */ |
| 7 | 1158 } |
| 1159 else | |
| 1160 { | |
| 1161 directly = FALSE; | |
| 1162 | |
| 1163 /* count the number of matching swap files */ | |
| 2267 | 1164 len = recover_names(fname, FALSE, 0, NULL); |
| 7 | 1165 if (len == 0) /* no swap files found */ |
| 1166 { | |
| 1167 EMSG2(_("E305: No swap file found for %s"), fname); | |
| 1168 goto theend; | |
| 1169 } | |
| 1170 if (len == 1) /* one swap file found, use it */ | |
| 1171 i = 1; | |
| 1172 else /* several swap files found, choose */ | |
| 1173 { | |
| 1174 /* list the names of the swap files */ | |
| 2267 | 1175 (void)recover_names(fname, TRUE, 0, NULL); |
| 7 | 1176 msg_putchar('\n'); |
| 1177 MSG_PUTS(_("Enter number of swap file to use (0 to quit): ")); | |
| 374 | 1178 i = get_number(FALSE, NULL); |
| 7 | 1179 if (i < 1 || i > len) |
| 1180 goto theend; | |
| 1181 } | |
| 1182 /* get the swap file name that will be used */ | |
| 2267 | 1183 (void)recover_names(fname, FALSE, i, &fname_used); |
| 7 | 1184 } |
| 2267 | 1185 if (fname_used == NULL) |
| 7 | 1186 goto theend; /* out of memory */ |
| 1187 | |
| 1188 /* When called from main() still need to initialize storage structure */ | |
| 625 | 1189 if (called_from_main && ml_open(curbuf) == FAIL) |
| 7 | 1190 getout(1); |
| 1191 | |
| 2267 | 1192 /* |
| 1193 * Allocate a buffer structure for the swap file that is used for recovery. | |
|
2407
6bc102a4bff8
Fix memory access to 'cryptmethod' during recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2394
diff
changeset
|
1194 * Only the memline and crypt information in it are really used. |
| 2267 | 1195 */ |
| 7 | 1196 buf = (buf_T *)alloc((unsigned)sizeof(buf_T)); |
| 1197 if (buf == NULL) | |
| 1198 goto theend; | |
| 2267 | 1199 |
| 1200 /* | |
| 1201 * init fields in memline struct | |
| 1202 */ | |
| 7 | 1203 buf->b_ml.ml_stack_size = 0; /* no stack yet */ |
| 1204 buf->b_ml.ml_stack = NULL; /* no stack yet */ | |
| 1205 buf->b_ml.ml_stack_top = 0; /* nothing in the stack */ | |
| 1206 buf->b_ml.ml_line_lnum = 0; /* no cached line */ | |
| 1207 buf->b_ml.ml_locked = NULL; /* no locked block */ | |
| 1208 buf->b_ml.ml_flags = 0; | |
|
2408
9e2e63af1641
Better fix for memory access in recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2407
diff
changeset
|
1209 #ifdef FEAT_CRYPT |
|
9e2e63af1641
Better fix for memory access in recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2407
diff
changeset
|
1210 buf->b_p_key = empty_option; |
|
9e2e63af1641
Better fix for memory access in recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2407
diff
changeset
|
1211 buf->b_p_cm = empty_option; |
|
9e2e63af1641
Better fix for memory access in recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2407
diff
changeset
|
1212 #endif |
| 7 | 1213 |
| 2267 | 1214 /* |
| 1215 * open the memfile from the old swap file | |
| 1216 */ | |
| 1217 p = vim_strsave(fname_used); /* save "fname_used" for the message: | |
| 1218 mf_open() will consume "fname_used"! */ | |
| 1219 mfp = mf_open(fname_used, O_RDONLY); | |
| 1220 fname_used = p; | |
| 7 | 1221 if (mfp == NULL || mfp->mf_fd < 0) |
| 1222 { | |
| 2267 | 1223 if (fname_used != NULL) |
| 1224 EMSG2(_("E306: Cannot open %s"), fname_used); | |
| 7 | 1225 goto theend; |
| 1226 } | |
| 1227 buf->b_ml.ml_mfp = mfp; | |
| 2267 | 1228 #ifdef FEAT_CRYPT |
| 1229 mfp->mf_buffer = buf; | |
| 1230 #endif | |
| 7 | 1231 |
| 1232 /* | |
| 1233 * The page size set in mf_open() might be different from the page size | |
| 1234 * used in the swap file, we must get it from block 0. But to read block | |
| 1235 * 0 we need a page size. Use the minimal size for block 0 here, it will | |
| 1236 * be set to the real value below. | |
| 1237 */ | |
| 1238 mfp->mf_page_size = MIN_SWAP_PAGE_SIZE; | |
| 1239 | |
| 2267 | 1240 /* |
| 1241 * try to read block 0 | |
| 1242 */ | |
| 7 | 1243 if ((hp = mf_get(mfp, (blocknr_T)0, 1)) == NULL) |
| 1244 { | |
| 1245 msg_start(); | |
| 1246 MSG_PUTS_ATTR(_("Unable to read block 0 from "), attr | MSG_HIST); | |
| 1247 msg_outtrans_attr(mfp->mf_fname, attr | MSG_HIST); | |
| 2267 | 1248 MSG_PUTS_ATTR(_("\nMaybe no changes were made or Vim did not update the swap file."), |
| 7 | 1249 attr | MSG_HIST); |
| 1250 msg_end(); | |
| 1251 goto theend; | |
| 1252 } | |
| 1253 b0p = (ZERO_BL *)(hp->bh_data); | |
| 1254 if (STRNCMP(b0p->b0_version, "VIM 3.0", 7) == 0) | |
| 1255 { | |
| 1256 msg_start(); | |
| 1257 msg_outtrans_attr(mfp->mf_fname, MSG_HIST); | |
| 1258 MSG_PUTS_ATTR(_(" cannot be used with this version of Vim.\n"), | |
| 1259 MSG_HIST); | |
| 1260 MSG_PUTS_ATTR(_("Use Vim version 3.0.\n"), MSG_HIST); | |
| 1261 msg_end(); | |
| 1262 goto theend; | |
| 1263 } | |
| 2267 | 1264 if (ml_check_b0_id(b0p) == FAIL) |
| 7 | 1265 { |
| 1266 EMSG2(_("E307: %s does not look like a Vim swap file"), mfp->mf_fname); | |
| 1267 goto theend; | |
| 1268 } | |
| 1269 if (b0_magic_wrong(b0p)) | |
| 1270 { | |
| 1271 msg_start(); | |
| 1272 msg_outtrans_attr(mfp->mf_fname, attr | MSG_HIST); | |
|
8212
05b88224cea1
commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
1273 #if defined(MSWIN) |
| 7 | 1274 if (STRNCMP(b0p->b0_hname, "PC ", 3) == 0) |
| 1275 MSG_PUTS_ATTR(_(" cannot be used with this version of Vim.\n"), | |
| 1276 attr | MSG_HIST); | |
| 1277 else | |
| 1278 #endif | |
| 1279 MSG_PUTS_ATTR(_(" cannot be used on this computer.\n"), | |
| 1280 attr | MSG_HIST); | |
| 1281 MSG_PUTS_ATTR(_("The file was created on "), attr | MSG_HIST); | |
|
2273
7f09ce7b4126
Fix a memory leak in encryption. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2272
diff
changeset
|
1282 /* avoid going past the end of a corrupted hostname */ |
| 7 | 1283 b0p->b0_fname[0] = NUL; |
| 1284 MSG_PUTS_ATTR(b0p->b0_hname, attr | MSG_HIST); | |
| 1285 MSG_PUTS_ATTR(_(",\nor the file has been damaged."), attr | MSG_HIST); | |
| 1286 msg_end(); | |
| 1287 goto theend; | |
| 1288 } | |
| 1105 | 1289 |
| 2267 | 1290 #ifdef FEAT_CRYPT |
| 6122 | 1291 for (i = 0; i < (int)(sizeof(id1_codes) / sizeof(int)); ++i) |
| 1292 if (id1_codes[i] == b0p->b0_id[1]) | |
| 1293 b0_cm = i; | |
| 1294 if (b0_cm > 0) | |
| 2267 | 1295 mch_memmove(mfp->mf_seed, &b0p->b0_seed, MF_SEED_LEN); |
| 6122 | 1296 crypt_set_cm_option(buf, b0_cm < 0 ? 0 : b0_cm); |
| 2267 | 1297 #else |
| 1298 if (b0p->b0_id[1] != BLOCK0_ID1) | |
| 1299 { | |
|
2283
7e1bd501306d
Mainly documentation updates.
Bram Moolenaar <bram@vim.org>
parents:
2273
diff
changeset
|
1300 EMSG2(_("E833: %s is encrypted and this version of Vim does not support encryption"), mfp->mf_fname); |
| 2267 | 1301 goto theend; |
| 1302 } | |
| 1303 #endif | |
| 1304 | |
| 7 | 1305 /* |
| 1306 * If we guessed the wrong page size, we have to recalculate the | |
| 1307 * highest block number in the file. | |
| 1308 */ | |
| 1309 if (mfp->mf_page_size != (unsigned)char_to_long(b0p->b0_page_size)) | |
| 1310 { | |
| 1105 | 1311 unsigned previous_page_size = mfp->mf_page_size; |
| 1312 | |
| 7 | 1313 mf_new_page_size(mfp, (unsigned)char_to_long(b0p->b0_page_size)); |
| 1105 | 1314 if (mfp->mf_page_size < previous_page_size) |
| 1315 { | |
| 1316 msg_start(); | |
| 1317 msg_outtrans_attr(mfp->mf_fname, attr | MSG_HIST); | |
| 1318 MSG_PUTS_ATTR(_(" has been damaged (page size is smaller than minimum value).\n"), | |
| 1319 attr | MSG_HIST); | |
| 1320 msg_end(); | |
| 1321 goto theend; | |
| 1322 } | |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
1323 if ((size = vim_lseek(mfp->mf_fd, (off_T)0L, SEEK_END)) <= 0) |
| 7 | 1324 mfp->mf_blocknr_max = 0; /* no file or empty file */ |
| 1325 else | |
| 1326 mfp->mf_blocknr_max = (blocknr_T)(size / mfp->mf_page_size); | |
| 1327 mfp->mf_infile_count = mfp->mf_blocknr_max; | |
| 1105 | 1328 |
| 1329 /* need to reallocate the memory used to store the data */ | |
| 1330 p = alloc(mfp->mf_page_size); | |
| 1331 if (p == NULL) | |
| 1332 goto theend; | |
| 1333 mch_memmove(p, hp->bh_data, previous_page_size); | |
| 1334 vim_free(hp->bh_data); | |
| 1335 hp->bh_data = p; | |
| 1336 b0p = (ZERO_BL *)(hp->bh_data); | |
| 7 | 1337 } |
| 1338 | |
| 2267 | 1339 /* |
| 1340 * If .swp file name given directly, use name from swap file for buffer. | |
| 1341 */ | |
| 7 | 1342 if (directly) |
| 1343 { | |
| 1344 expand_env(b0p->b0_fname, NameBuff, MAXPATHL); | |
| 1345 if (setfname(curbuf, NameBuff, NULL, TRUE) == FAIL) | |
| 1346 goto theend; | |
| 1347 } | |
| 1348 | |
| 1349 home_replace(NULL, mfp->mf_fname, NameBuff, MAXPATHL, TRUE); | |
| 274 | 1350 smsg((char_u *)_("Using swap file \"%s\""), NameBuff); |
| 7 | 1351 |
| 1352 if (buf_spname(curbuf) != NULL) | |
| 3839 | 1353 vim_strncpy(NameBuff, buf_spname(curbuf), MAXPATHL - 1); |
| 7 | 1354 else |
| 1355 home_replace(NULL, curbuf->b_ffname, NameBuff, MAXPATHL, TRUE); | |
| 274 | 1356 smsg((char_u *)_("Original file \"%s\""), NameBuff); |
| 7 | 1357 msg_putchar('\n'); |
| 1358 | |
| 2267 | 1359 /* |
| 1360 * check date of swap file and original file | |
| 1361 */ | |
| 7 | 1362 mtime = char_to_long(b0p->b0_mtime); |
| 1363 if (curbuf->b_ffname != NULL | |
| 1364 && mch_stat((char *)curbuf->b_ffname, &org_stat) != -1 | |
| 1365 && ((mch_stat((char *)mfp->mf_fname, &swp_stat) != -1 | |
| 1366 && org_stat.st_mtime > swp_stat.st_mtime) | |
| 1367 || org_stat.st_mtime != mtime)) | |
| 1368 { | |
| 1369 EMSG(_("E308: Warning: Original file may have been changed")); | |
| 1370 } | |
| 1371 out_flush(); | |
| 39 | 1372 |
| 1373 /* Get the 'fileformat' and 'fileencoding' from block zero. */ | |
| 1374 b0_ff = (b0p->b0_flags & B0_FF_MASK); | |
| 1375 if (b0p->b0_flags & B0_HAS_FENC) | |
| 1376 { | |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1377 int fnsize = B0_FNAME_SIZE_NOCRYPT; |
| 2267 | 1378 |
| 1379 #ifdef FEAT_CRYPT | |
| 1380 /* Use the same size as in add_b0_fenc(). */ | |
| 1381 if (b0p->b0_id[1] != BLOCK0_ID1) | |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1382 fnsize = B0_FNAME_SIZE_CRYPT; |
| 2267 | 1383 #endif |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1384 for (p = b0p->b0_fname + fnsize; p > b0p->b0_fname && p[-1] != NUL; --p) |
| 39 | 1385 ; |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1386 b0_fenc = vim_strnsave(p, (int)(b0p->b0_fname + fnsize - p)); |
| 39 | 1387 } |
| 1388 | |
| 7 | 1389 mf_put(mfp, hp, FALSE, FALSE); /* release block 0 */ |
| 1390 hp = NULL; | |
| 1391 | |
| 1392 /* | |
| 1393 * Now that we are sure that the file is going to be recovered, clear the | |
| 1394 * contents of the current buffer. | |
| 1395 */ | |
| 1396 while (!(curbuf->b_ml.ml_flags & ML_EMPTY)) | |
| 1397 ml_delete((linenr_T)1, FALSE); | |
| 1398 | |
| 1399 /* | |
| 1400 * Try reading the original file to obtain the values of 'fileformat', | |
| 1401 * 'fileencoding', etc. Ignore errors. The text itself is not used. | |
| 2267 | 1402 * When the file is encrypted the user is asked to enter the key. |
| 7 | 1403 */ |
| 1404 if (curbuf->b_ffname != NULL) | |
|
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1405 orig_file_status = readfile(curbuf->b_ffname, NULL, (linenr_T)0, |
| 7 | 1406 (linenr_T)0, (linenr_T)MAXLNUM, NULL, READ_NEW); |
| 1407 | |
| 2267 | 1408 #ifdef FEAT_CRYPT |
| 1409 if (b0_cm >= 0) | |
| 1410 { | |
| 1411 /* Need to ask the user for the crypt key. If this fails we continue | |
| 1412 * without a key, will probably get garbage text. */ | |
| 1413 if (*curbuf->b_p_key != NUL) | |
| 1414 { | |
| 1415 smsg((char_u *)_("Swap file is encrypted: \"%s\""), fname_used); | |
| 1416 MSG_PUTS(_("\nIf you entered a new crypt key but did not write the text file,")); | |
| 1417 MSG_PUTS(_("\nenter the new crypt key.")); | |
| 1418 MSG_PUTS(_("\nIf you wrote the text file after changing the crypt key press enter")); | |
| 1419 MSG_PUTS(_("\nto use the same key for text file and swap file")); | |
| 1420 } | |
| 1421 else | |
| 1422 smsg((char_u *)_(need_key_msg), fname_used); | |
| 6122 | 1423 buf->b_p_key = crypt_get_key(FALSE, FALSE); |
| 2267 | 1424 if (buf->b_p_key == NULL) |
| 1425 buf->b_p_key = curbuf->b_p_key; | |
| 1426 else if (*buf->b_p_key == NUL) | |
| 1427 { | |
| 1428 vim_free(buf->b_p_key); | |
| 1429 buf->b_p_key = curbuf->b_p_key; | |
| 1430 } | |
| 1431 if (buf->b_p_key == NULL) | |
| 1432 buf->b_p_key = empty_option; | |
|
2165
733f0dc510c3
Undo changes that are meant for the Vim 7.3 branch.
Bram Moolenaar <bram@vim.org>
parents:
2162
diff
changeset
|
1433 } |
| 2267 | 1434 #endif |
| 7 | 1435 |
| 39 | 1436 /* Use the 'fileformat' and 'fileencoding' as stored in the swap file. */ |
| 1437 if (b0_ff != 0) | |
| 1438 set_fileformat(b0_ff - 1, OPT_LOCAL); | |
| 1439 if (b0_fenc != NULL) | |
| 1440 { | |
| 1441 set_option_value((char_u *)"fenc", 0L, b0_fenc, OPT_LOCAL); | |
| 1442 vim_free(b0_fenc); | |
| 1443 } | |
| 1444 unchanged(curbuf, TRUE); | |
| 1445 | |
| 7 | 1446 bnum = 1; /* start with block 1 */ |
| 1447 page_count = 1; /* which is 1 page */ | |
| 1448 lnum = 0; /* append after line 0 in curbuf */ | |
| 1449 line_count = 0; | |
| 1450 idx = 0; /* start with first index in block 1 */ | |
| 1451 error = 0; | |
| 1452 buf->b_ml.ml_stack_top = 0; | |
| 1453 buf->b_ml.ml_stack = NULL; | |
| 1454 buf->b_ml.ml_stack_size = 0; /* no stack yet */ | |
| 1455 | |
| 1456 if (curbuf->b_ffname == NULL) | |
| 1457 cannot_open = TRUE; | |
| 1458 else | |
| 1459 cannot_open = FALSE; | |
| 1460 | |
| 1461 serious_error = FALSE; | |
| 1462 for ( ; !got_int; line_breakcheck()) | |
| 1463 { | |
| 1464 if (hp != NULL) | |
| 1465 mf_put(mfp, hp, FALSE, FALSE); /* release previous block */ | |
| 1466 | |
| 1467 /* | |
| 1468 * get block | |
| 1469 */ | |
| 1470 if ((hp = mf_get(mfp, (blocknr_T)bnum, page_count)) == NULL) | |
| 1471 { | |
| 1472 if (bnum == 1) | |
| 1473 { | |
| 1474 EMSG2(_("E309: Unable to read block 1 from %s"), mfp->mf_fname); | |
| 1475 goto theend; | |
| 1476 } | |
| 1477 ++error; | |
| 1478 ml_append(lnum++, (char_u *)_("???MANY LINES MISSING"), | |
| 1479 (colnr_T)0, TRUE); | |
| 1480 } | |
| 1481 else /* there is a block */ | |
| 1482 { | |
| 1483 pp = (PTR_BL *)(hp->bh_data); | |
| 1484 if (pp->pb_id == PTR_ID) /* it is a pointer block */ | |
| 1485 { | |
| 1486 /* check line count when using pointer block first time */ | |
| 1487 if (idx == 0 && line_count != 0) | |
| 1488 { | |
| 1489 for (i = 0; i < (int)pp->pb_count; ++i) | |
| 1490 line_count -= pp->pb_pointer[i].pe_line_count; | |
| 1491 if (line_count != 0) | |
| 1492 { | |
| 1493 ++error; | |
| 1494 ml_append(lnum++, (char_u *)_("???LINE COUNT WRONG"), | |
| 1495 (colnr_T)0, TRUE); | |
| 1496 } | |
| 1497 } | |
| 1498 | |
| 1499 if (pp->pb_count == 0) | |
| 1500 { | |
| 1501 ml_append(lnum++, (char_u *)_("???EMPTY BLOCK"), | |
| 1502 (colnr_T)0, TRUE); | |
| 1503 ++error; | |
| 1504 } | |
| 1505 else if (idx < (int)pp->pb_count) /* go a block deeper */ | |
| 1506 { | |
| 1507 if (pp->pb_pointer[idx].pe_bnum < 0) | |
| 1508 { | |
| 1509 /* | |
| 1510 * Data block with negative block number. | |
| 1511 * Try to read lines from the original file. | |
| 1512 * This is slow, but it works. | |
| 1513 */ | |
| 1514 if (!cannot_open) | |
| 1515 { | |
| 1516 line_count = pp->pb_pointer[idx].pe_line_count; | |
| 1517 if (readfile(curbuf->b_ffname, NULL, lnum, | |
| 1518 pp->pb_pointer[idx].pe_old_lnum - 1, | |
|
10575
01a5f64a7a20
patch 8.0.0177: BufEnter autocommand not fired for a directory
Christian Brabandt <cb@256bit.org>
parents:
10359
diff
changeset
|
1519 line_count, NULL, 0) != OK) |
| 7 | 1520 cannot_open = TRUE; |
| 1521 else | |
| 1522 lnum += line_count; | |
| 1523 } | |
| 1524 if (cannot_open) | |
| 1525 { | |
| 1526 ++error; | |
| 1527 ml_append(lnum++, (char_u *)_("???LINES MISSING"), | |
| 1528 (colnr_T)0, TRUE); | |
| 1529 } | |
| 1530 ++idx; /* get same block again for next index */ | |
| 1531 continue; | |
| 1532 } | |
| 1533 | |
| 1534 /* | |
| 1535 * going one block deeper in the tree | |
| 1536 */ | |
| 1537 if ((top = ml_add_stack(buf)) < 0) /* new entry in stack */ | |
| 1538 { | |
| 1539 ++error; | |
| 1540 break; /* out of memory */ | |
| 1541 } | |
| 1542 ip = &(buf->b_ml.ml_stack[top]); | |
| 1543 ip->ip_bnum = bnum; | |
| 1544 ip->ip_index = idx; | |
| 1545 | |
| 1546 bnum = pp->pb_pointer[idx].pe_bnum; | |
| 1547 line_count = pp->pb_pointer[idx].pe_line_count; | |
| 1548 page_count = pp->pb_pointer[idx].pe_page_count; | |
| 2885 | 1549 idx = 0; |
| 7 | 1550 continue; |
| 1551 } | |
| 1552 } | |
| 1553 else /* not a pointer block */ | |
| 1554 { | |
| 1555 dp = (DATA_BL *)(hp->bh_data); | |
| 1556 if (dp->db_id != DATA_ID) /* block id wrong */ | |
| 1557 { | |
| 1558 if (bnum == 1) | |
| 1559 { | |
| 1560 EMSG2(_("E310: Block 1 ID wrong (%s not a .swp file?)"), | |
| 1561 mfp->mf_fname); | |
| 1562 goto theend; | |
| 1563 } | |
| 1564 ++error; | |
| 1565 ml_append(lnum++, (char_u *)_("???BLOCK MISSING"), | |
| 1566 (colnr_T)0, TRUE); | |
| 1567 } | |
| 1568 else | |
| 1569 { | |
| 1570 /* | |
| 1571 * it is a data block | |
| 1572 * Append all the lines in this block | |
| 1573 */ | |
| 1574 has_error = FALSE; | |
| 1575 /* | |
| 1576 * check length of block | |
| 1577 * if wrong, use length in pointer block | |
| 1578 */ | |
| 1579 if (page_count * mfp->mf_page_size != dp->db_txt_end) | |
| 1580 { | |
| 1581 ml_append(lnum++, (char_u *)_("??? from here until ???END lines may be messed up"), | |
| 1582 (colnr_T)0, TRUE); | |
| 1583 ++error; | |
| 1584 has_error = TRUE; | |
| 1585 dp->db_txt_end = page_count * mfp->mf_page_size; | |
| 1586 } | |
| 1587 | |
| 1588 /* make sure there is a NUL at the end of the block */ | |
| 1589 *((char_u *)dp + dp->db_txt_end - 1) = NUL; | |
| 1590 | |
| 1591 /* | |
| 1592 * check number of lines in block | |
| 1593 * if wrong, use count in data block | |
| 1594 */ | |
| 1595 if (line_count != dp->db_line_count) | |
| 1596 { | |
| 1597 ml_append(lnum++, (char_u *)_("??? from here until ???END lines may have been inserted/deleted"), | |
| 1598 (colnr_T)0, TRUE); | |
| 1599 ++error; | |
| 1600 has_error = TRUE; | |
| 1601 } | |
| 1602 | |
| 1603 for (i = 0; i < dp->db_line_count; ++i) | |
| 1604 { | |
| 1605 txt_start = (dp->db_index[i] & DB_INDEX_MASK); | |
| 1978 | 1606 if (txt_start <= (int)HEADER_SIZE |
| 7 | 1607 || txt_start >= (int)dp->db_txt_end) |
| 1608 { | |
| 1609 p = (char_u *)"???"; | |
| 1610 ++error; | |
| 1611 } | |
| 1612 else | |
| 1613 p = (char_u *)dp + txt_start; | |
| 1614 ml_append(lnum++, p, (colnr_T)0, TRUE); | |
| 1615 } | |
| 1616 if (has_error) | |
| 1978 | 1617 ml_append(lnum++, (char_u *)_("???END"), |
| 1618 (colnr_T)0, TRUE); | |
| 7 | 1619 } |
| 1620 } | |
| 1621 } | |
| 1622 | |
| 1623 if (buf->b_ml.ml_stack_top == 0) /* finished */ | |
| 1624 break; | |
| 1625 | |
| 1626 /* | |
| 1627 * go one block up in the tree | |
| 1628 */ | |
| 1629 ip = &(buf->b_ml.ml_stack[--(buf->b_ml.ml_stack_top)]); | |
| 1630 bnum = ip->ip_bnum; | |
| 1631 idx = ip->ip_index + 1; /* go to next index */ | |
| 1632 page_count = 1; | |
| 1633 } | |
| 1634 | |
| 1635 /* | |
|
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1636 * Compare the buffer contents with the original file. When they differ |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1637 * set the 'modified' flag. |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1638 * Lines 1 - lnum are the new contents. |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1639 * Lines lnum + 1 to ml_line_count are the original contents. |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1640 * Line ml_line_count + 1 in the dummy empty line. |
| 7 | 1641 */ |
|
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1642 if (orig_file_status != OK || curbuf->b_ml.ml_line_count != lnum * 2 + 1) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1643 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1644 /* Recovering an empty file results in two lines and the first line is |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1645 * empty. Don't set the modified flag then. */ |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1646 if (!(curbuf->b_ml.ml_line_count == 2 && *ml_get(1) == NUL)) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1647 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1648 changed_int(); |
|
10952
835604f3c37a
patch 8.0.0365: might free a dict item that wasn't allocated
Christian Brabandt <cb@256bit.org>
parents:
10896
diff
changeset
|
1649 ++CHANGEDTICK(curbuf); |
|
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1650 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1651 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1652 else |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1653 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1654 for (idx = 1; idx <= lnum; ++idx) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1655 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1656 /* Need to copy one line, fetching the other one may flush it. */ |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1657 p = vim_strsave(ml_get(idx)); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1658 i = STRCMP(p, ml_get(idx + lnum)); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1659 vim_free(p); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
2145
diff
changeset
|
1660 if (i != 0) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1661 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1662 changed_int(); |
|
10952
835604f3c37a
patch 8.0.0365: might free a dict item that wasn't allocated
Christian Brabandt <cb@256bit.org>
parents:
10896
diff
changeset
|
1663 ++CHANGEDTICK(curbuf); |
|
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1664 break; |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1665 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1666 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1667 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1668 |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1669 /* |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1670 * Delete the lines from the original file and the dummy line from the |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1671 * empty buffer. These will now be after the last line in the buffer. |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1672 */ |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1673 while (curbuf->b_ml.ml_line_count > lnum |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1674 && !(curbuf->b_ml.ml_flags & ML_EMPTY)) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1675 ml_delete(curbuf->b_ml.ml_line_count, FALSE); |
| 7 | 1676 curbuf->b_flags |= BF_RECOVERED; |
| 1677 | |
| 1678 recoverymode = FALSE; | |
| 1679 if (got_int) | |
| 1680 EMSG(_("E311: Recovery Interrupted")); | |
| 1681 else if (error) | |
| 1682 { | |
| 1683 ++no_wait_return; | |
| 1684 MSG(">>>>>>>>>>>>>"); | |
| 1685 EMSG(_("E312: Errors detected while recovering; look for lines starting with ???")); | |
| 1686 --no_wait_return; | |
| 1687 MSG(_("See \":help E312\" for more information.")); | |
| 1688 MSG(">>>>>>>>>>>>>"); | |
| 1689 } | |
| 1690 else | |
| 1691 { | |
|
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1692 if (curbuf->b_changed) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1693 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1694 MSG(_("Recovery completed. You should check if everything is OK.")); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1695 MSG_PUTS(_("\n(You might want to write out this file under another name\n")); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1696 MSG_PUTS(_("and run diff with the original file to check for changes)")); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1697 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1698 else |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1699 MSG(_("Recovery completed. Buffer contents equals file contents.")); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1700 MSG_PUTS(_("\nYou may want to delete the .swp file now.\n\n")); |
| 7 | 1701 cmdline_row = msg_row; |
| 1702 } | |
| 2267 | 1703 #ifdef FEAT_CRYPT |
| 1704 if (*buf->b_p_key != NUL && STRCMP(curbuf->b_p_key, buf->b_p_key) != 0) | |
| 1705 { | |
| 1706 MSG_PUTS(_("Using crypt key from swap file for the text file.\n")); | |
| 1707 set_option_value((char_u *)"key", 0L, buf->b_p_key, OPT_LOCAL); | |
| 1708 } | |
| 1709 #endif | |
| 7 | 1710 redraw_curbuf_later(NOT_VALID); |
| 1711 | |
| 1712 theend: | |
| 2267 | 1713 vim_free(fname_used); |
| 7 | 1714 recoverymode = FALSE; |
| 1715 if (mfp != NULL) | |
| 1716 { | |
| 1717 if (hp != NULL) | |
| 1718 mf_put(mfp, hp, FALSE, FALSE); | |
| 1719 mf_close(mfp, FALSE); /* will also vim_free(mfp->mf_fname) */ | |
| 1720 } | |
| 1053 | 1721 if (buf != NULL) |
| 1722 { | |
| 2267 | 1723 #ifdef FEAT_CRYPT |
| 1724 if (buf->b_p_key != curbuf->b_p_key) | |
| 1725 free_string_option(buf->b_p_key); | |
|
2407
6bc102a4bff8
Fix memory access to 'cryptmethod' during recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2394
diff
changeset
|
1726 free_string_option(buf->b_p_cm); |
| 2267 | 1727 #endif |
| 1053 | 1728 vim_free(buf->b_ml.ml_stack); |
| 1729 vim_free(buf); | |
| 1730 } | |
| 7 | 1731 if (serious_error && called_from_main) |
| 1732 ml_close(curbuf, TRUE); | |
| 1733 else | |
| 1734 { | |
| 1735 apply_autocmds(EVENT_BUFREADPOST, NULL, curbuf->b_fname, FALSE, curbuf); | |
| 1736 apply_autocmds(EVENT_BUFWINENTER, NULL, curbuf->b_fname, FALSE, curbuf); | |
| 1737 } | |
| 1738 return; | |
| 1739 } | |
| 1740 | |
| 1741 /* | |
| 1742 * Find the names of swap files in current directory and the directory given | |
| 1743 * with the 'directory' option. | |
| 1744 * | |
| 1745 * Used to: | |
| 1746 * - list the swap files for "vim -r" | |
| 1747 * - count the number of swap files when recovering | |
| 1748 * - list the swap files when recovering | |
| 1749 * - find the name of the n'th swap file when recovering | |
| 1750 */ | |
| 1751 int | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1752 recover_names( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1753 char_u *fname, /* base for swap file name */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1754 int list, /* when TRUE, list the swap file names */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1755 int nr, /* when non-zero, return nr'th swap file name */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1756 char_u **fname_out) /* result when "nr" > 0 */ |
| 7 | 1757 { |
| 1758 int num_names; | |
| 1759 char_u *(names[6]); | |
| 1760 char_u *tail; | |
| 1761 char_u *p; | |
| 1762 int num_files; | |
| 1763 int file_count = 0; | |
| 1764 char_u **files; | |
| 1765 int i; | |
| 1766 char_u *dirp; | |
| 1767 char_u *dir_name; | |
| 2175 | 1768 char_u *fname_res = NULL; |
|
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diff
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|
1769 #ifdef HAVE_READLINK |
|
de0e7ca61893
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Bram Moolenaar <bram@zimbu.org>
parents:
2108
diff
changeset
|
1770 char_u fname_buf[MAXPATHL]; |
| 2175 | 1771 #endif |
| 1772 | |
| 1773 if (fname != NULL) | |
| 1774 { | |
| 1775 #ifdef HAVE_READLINK | |
| 2267 | 1776 /* Expand symlink in the file name, because the swap file is created |
| 1777 * with the actual file instead of with the symlink. */ | |
| 1778 if (resolve_symlink(fname, fname_buf) == OK) | |
| 1779 fname_res = fname_buf; | |
| 1780 else | |
|
2145
de0e7ca61893
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Bram Moolenaar <bram@zimbu.org>
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2108
diff
changeset
|
1781 #endif |
| 2267 | 1782 fname_res = fname; |
| 2175 | 1783 } |
| 7 | 1784 |
| 1785 if (list) | |
| 1786 { | |
|
2145
de0e7ca61893
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2108
diff
changeset
|
1787 /* use msg() to start the scrolling properly */ |
| 7 | 1788 msg((char_u *)_("Swap files found:")); |
| 1789 msg_putchar('\n'); | |
| 1790 } | |
| 1791 | |
| 1792 /* | |
| 1793 * Do the loop for every directory in 'directory'. | |
| 1794 * First allocate some memory to put the directory name in. | |
| 1795 */ | |
| 1796 dir_name = alloc((unsigned)STRLEN(p_dir) + 1); | |
| 1797 dirp = p_dir; | |
| 1798 while (dir_name != NULL && *dirp) | |
| 1799 { | |
| 1800 /* | |
| 1801 * Isolate a directory name from *dirp and put it in dir_name (we know | |
| 1802 * it is large enough, so use 31000 for length). | |
| 1803 * Advance dirp to next directory name. | |
| 1804 */ | |
| 1805 (void)copy_option_part(&dirp, dir_name, 31000, ","); | |
| 1806 | |
| 1807 if (dir_name[0] == '.' && dir_name[1] == NUL) /* check current dir */ | |
| 1808 { | |
| 2267 | 1809 if (fname == NULL) |
| 7 | 1810 { |
| 1811 #ifdef VMS | |
| 1812 names[0] = vim_strsave((char_u *)"*_sw%"); | |
| 1813 #else | |
| 1814 names[0] = vim_strsave((char_u *)"*.sw?"); | |
| 1815 #endif | |
| 1005 | 1816 #if defined(UNIX) || defined(WIN3264) |
| 1817 /* For Unix names starting with a dot are special. MS-Windows | |
| 1818 * supports this too, on some file systems. */ | |
| 7 | 1819 names[1] = vim_strsave((char_u *)".*.sw?"); |
| 1820 names[2] = vim_strsave((char_u *)".sw?"); | |
| 1821 num_names = 3; | |
| 1822 #else | |
| 1823 # ifdef VMS | |
| 1824 names[1] = vim_strsave((char_u *)".*_sw%"); | |
| 1825 num_names = 2; | |
| 1826 # else | |
| 1827 num_names = 1; | |
| 1828 # endif | |
| 1829 #endif | |
| 1830 } | |
| 1831 else | |
|
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1832 num_names = recov_file_names(names, fname_res, TRUE); |
| 7 | 1833 } |
| 1834 else /* check directory dir_name */ | |
| 1835 { | |
| 2267 | 1836 if (fname == NULL) |
| 7 | 1837 { |
| 1838 #ifdef VMS | |
| 1839 names[0] = concat_fnames(dir_name, (char_u *)"*_sw%", TRUE); | |
| 1840 #else | |
| 1841 names[0] = concat_fnames(dir_name, (char_u *)"*.sw?", TRUE); | |
| 1842 #endif | |
| 1005 | 1843 #if defined(UNIX) || defined(WIN3264) |
| 1844 /* For Unix names starting with a dot are special. MS-Windows | |
| 1845 * supports this too, on some file systems. */ | |
| 7 | 1846 names[1] = concat_fnames(dir_name, (char_u *)".*.sw?", TRUE); |
| 1847 names[2] = concat_fnames(dir_name, (char_u *)".sw?", TRUE); | |
| 1848 num_names = 3; | |
| 1849 #else | |
| 1850 # ifdef VMS | |
| 1851 names[1] = concat_fnames(dir_name, (char_u *)".*_sw%", TRUE); | |
| 1852 num_names = 2; | |
| 1853 # else | |
| 1854 num_names = 1; | |
| 1855 # endif | |
| 1856 #endif | |
| 1857 } | |
| 1858 else | |
| 1859 { | |
| 1860 #if defined(UNIX) || defined(WIN3264) | |
|
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1861 int len = (int)STRLEN(dir_name); |
|
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1862 |
|
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|
1863 p = dir_name + len; |
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1864 if (after_pathsep(dir_name, p) && len > 1 && p[-1] == p[-2]) |
| 7 | 1865 { |
| 1866 /* Ends with '//', Use Full path for swap name */ | |
|
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1867 tail = make_percent_swname(dir_name, fname_res); |
| 7 | 1868 } |
| 1869 else | |
| 1870 #endif | |
| 1871 { | |
|
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|
1872 tail = gettail(fname_res); |
| 7 | 1873 tail = concat_fnames(dir_name, tail, TRUE); |
| 1874 } | |
| 1875 if (tail == NULL) | |
| 1876 num_names = 0; | |
| 1877 else | |
| 1878 { | |
| 1879 num_names = recov_file_names(names, tail, FALSE); | |
| 1880 vim_free(tail); | |
| 1881 } | |
| 1882 } | |
| 1883 } | |
| 1884 | |
| 1885 /* check for out-of-memory */ | |
| 1886 for (i = 0; i < num_names; ++i) | |
| 1887 { | |
| 1888 if (names[i] == NULL) | |
| 1889 { | |
| 1890 for (i = 0; i < num_names; ++i) | |
| 1891 vim_free(names[i]); | |
| 1892 num_names = 0; | |
| 1893 } | |
| 1894 } | |
| 1895 if (num_names == 0) | |
| 1896 num_files = 0; | |
| 1897 else if (expand_wildcards(num_names, names, &num_files, &files, | |
| 1898 EW_KEEPALL|EW_FILE|EW_SILENT) == FAIL) | |
| 1899 num_files = 0; | |
| 1900 | |
| 1901 /* | |
| 1902 * When no swap file found, wildcard expansion might have failed (e.g. | |
| 1903 * not able to execute the shell). | |
| 1904 * Try finding a swap file by simply adding ".swp" to the file name. | |
| 1905 */ | |
| 2267 | 1906 if (*dirp == NUL && file_count + num_files == 0 && fname != NULL) |
| 7 | 1907 { |
|
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|
1908 stat_T st; |
| 7 | 1909 char_u *swapname; |
| 1910 | |
|
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|
1911 swapname = modname(fname_res, |
| 2823 | 1912 #if defined(VMS) |
|
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1913 (char_u *)"_swp", FALSE |
| 7 | 1914 #else |
|
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1915 (char_u *)".swp", TRUE |
| 7 | 1916 #endif |
|
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1917 ); |
| 7 | 1918 if (swapname != NULL) |
| 1919 { | |
| 1920 if (mch_stat((char *)swapname, &st) != -1) /* It exists! */ | |
| 1921 { | |
| 1922 files = (char_u **)alloc((unsigned)sizeof(char_u *)); | |
| 1923 if (files != NULL) | |
| 1924 { | |
| 1925 files[0] = swapname; | |
| 1926 swapname = NULL; | |
| 1927 num_files = 1; | |
| 1928 } | |
| 1929 } | |
| 1930 vim_free(swapname); | |
| 1931 } | |
| 1932 } | |
| 1933 | |
| 1934 /* | |
| 1935 * remove swapfile name of the current buffer, it must be ignored | |
| 1936 */ | |
| 1937 if (curbuf->b_ml.ml_mfp != NULL | |
| 1938 && (p = curbuf->b_ml.ml_mfp->mf_fname) != NULL) | |
| 1939 { | |
| 1940 for (i = 0; i < num_files; ++i) | |
| 1941 if (fullpathcmp(p, files[i], TRUE) & FPC_SAME) | |
| 1942 { | |
| 1855 | 1943 /* Remove the name from files[i]. Move further entries |
| 1944 * down. When the array becomes empty free it here, since | |
| 1945 * FreeWild() won't be called below. */ | |
| 7 | 1946 vim_free(files[i]); |
| 1855 | 1947 if (--num_files == 0) |
| 1948 vim_free(files); | |
| 1949 else | |
| 1950 for ( ; i < num_files; ++i) | |
| 1951 files[i] = files[i + 1]; | |
| 7 | 1952 } |
| 1953 } | |
| 838 | 1954 if (nr > 0) |
| 7 | 1955 { |
| 1956 file_count += num_files; | |
| 1957 if (nr <= file_count) | |
| 1958 { | |
| 2267 | 1959 *fname_out = vim_strsave( |
| 1960 files[nr - 1 + num_files - file_count]); | |
| 7 | 1961 dirp = (char_u *)""; /* stop searching */ |
| 1962 } | |
| 1963 } | |
| 1964 else if (list) | |
| 1965 { | |
| 1966 if (dir_name[0] == '.' && dir_name[1] == NUL) | |
| 1967 { | |
| 2267 | 1968 if (fname == NULL) |
| 7 | 1969 MSG_PUTS(_(" In current directory:\n")); |
| 1970 else | |
| 1971 MSG_PUTS(_(" Using specified name:\n")); | |
| 1972 } | |
| 1973 else | |
| 1974 { | |
| 1975 MSG_PUTS(_(" In directory ")); | |
| 1976 msg_home_replace(dir_name); | |
| 1977 MSG_PUTS(":\n"); | |
| 1978 } | |
| 1979 | |
| 1980 if (num_files) | |
| 1981 { | |
| 1982 for (i = 0; i < num_files; ++i) | |
| 1983 { | |
| 1984 /* print the swap file name */ | |
| 1985 msg_outnum((long)++file_count); | |
| 1986 MSG_PUTS(". "); | |
| 1987 msg_puts(gettail(files[i])); | |
| 1988 msg_putchar('\n'); | |
| 1989 (void)swapfile_info(files[i]); | |
| 1990 } | |
| 1991 } | |
| 1992 else | |
| 1993 MSG_PUTS(_(" -- none --\n")); | |
| 1994 out_flush(); | |
| 1995 } | |
| 1996 else | |
| 1997 file_count += num_files; | |
| 1998 | |
| 1999 for (i = 0; i < num_names; ++i) | |
| 2000 vim_free(names[i]); | |
| 838 | 2001 if (num_files > 0) |
| 2002 FreeWild(num_files, files); | |
| 7 | 2003 } |
| 2004 vim_free(dir_name); | |
| 2005 return file_count; | |
| 2006 } | |
| 2007 | |
|
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|
2008 #if defined(UNIX) || defined(WIN3264) || defined(PROTO) |
| 7 | 2009 /* |
|
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2010 * Need _very_ long file names. |
| 7 | 2011 * Append the full path to name with path separators made into percent |
| 2012 * signs, to dir. An unnamed buffer is handled as "" (<currentdir>/"") | |
| 2013 */ | |
|
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|
2014 char_u * |
|
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|
2015 make_percent_swname(char_u *dir, char_u *name) |
| 7 | 2016 { |
|
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|
2017 char_u *d = NULL, *s, *f; |
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2018 |
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2019 f = fix_fname(name != NULL ? name : (char_u *)""); |
| 7 | 2020 if (f != NULL) |
| 2021 { | |
| 2022 s = alloc((unsigned)(STRLEN(f) + 1)); | |
| 2023 if (s != NULL) | |
| 2024 { | |
| 39 | 2025 STRCPY(s, f); |
|
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changeset
|
2026 for (d = s; *d != NUL; MB_PTR_ADV(d)) |
| 39 | 2027 if (vim_ispathsep(*d)) |
| 2028 *d = '%'; | |
| 7 | 2029 d = concat_fnames(dir, s, TRUE); |
| 2030 vim_free(s); | |
| 2031 } | |
| 2032 vim_free(f); | |
| 2033 } | |
| 2034 return d; | |
| 2035 } | |
| 2036 #endif | |
| 2037 | |
|
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changeset
|
2038 #if (defined(UNIX) || defined(VMS)) && (defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)) |
| 7 | 2039 static int process_still_running; |
| 2040 #endif | |
| 2041 | |
|
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|
2042 #if defined(FEAT_EVAL) || defined(PROTO) |
| 7 | 2043 /* |
|
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2044 * Return information found in swapfile "fname" in dictionary "d". |
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2045 * This is used by the swapinfo() function. |
|
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2046 */ |
|
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2047 void |
|
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2048 get_b0_dict(char_u *fname, dict_T *d) |
|
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2049 { |
|
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2050 int fd; |
|
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2051 struct block0 b0; |
|
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2052 |
|
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2053 if ((fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0)) >= 0) |
|
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2054 { |
|
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2055 if (read_eintr(fd, &b0, sizeof(b0)) == sizeof(b0)) |
|
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|
2056 { |
|
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2057 if (ml_check_b0_id(&b0) == FAIL) |
|
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2058 dict_add_string(d, "error", |
|
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2059 vim_strsave((char_u *)"Not a swap file")); |
|
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2060 else if (b0_magic_wrong(&b0)) |
|
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2061 dict_add_string(d, "error", |
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|
2062 vim_strsave((char_u *)"Magic number mismatch")); |
|
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2063 else |
|
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|
2064 { |
|
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2065 /* we have swap information */ |
|
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2066 dict_add_string(d, "version", vim_strnsave(b0.b0_version, 10)); |
|
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2067 dict_add_string(d, "user", |
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2068 vim_strnsave(b0.b0_uname, B0_UNAME_SIZE)); |
|
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2069 dict_add_string(d, "host", |
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2070 vim_strnsave(b0.b0_hname, B0_HNAME_SIZE)); |
|
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2071 dict_add_string(d, "fname", |
|
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2072 vim_strnsave(b0.b0_fname, B0_FNAME_SIZE_ORG)); |
|
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2073 |
|
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2074 dict_add_number(d, "pid", char_to_long(b0.b0_pid)); |
|
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2075 dict_add_number(d, "mtime", char_to_long(b0.b0_mtime)); |
|
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2076 dict_add_number(d, "dirty", b0.b0_dirty ? 1 : 0); |
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2077 # ifdef CHECK_INODE |
|
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2078 dict_add_number(d, "inode", char_to_long(b0.b0_ino)); |
|
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2079 # endif |
|
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2080 } |
|
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2081 } |
|
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2082 else |
|
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2083 dict_add_string(d, "error", |
|
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|
2084 vim_strsave((char_u *)"Cannot read file")); |
|
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2085 close(fd); |
|
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2086 } |
|
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2087 else |
|
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|
2088 dict_add_string(d, "error", vim_strsave((char_u *)"Cannot open file")); |
|
72d6f6f7ead7
patch 8.1.0313: information about a swap file is unavailable
Christian Brabandt <cb@256bit.org>
parents:
14593
diff
changeset
|
2089 } |
|
14601
d0ff19a55579
patch 8.1.0314: build failure without the +eval feature
Christian Brabandt <cb@256bit.org>
parents:
14599
diff
changeset
|
2090 #endif |
|
14599
72d6f6f7ead7
patch 8.1.0313: information about a swap file is unavailable
Christian Brabandt <cb@256bit.org>
parents:
14593
diff
changeset
|
2091 |
|
72d6f6f7ead7
patch 8.1.0313: information about a swap file is unavailable
Christian Brabandt <cb@256bit.org>
parents:
14593
diff
changeset
|
2092 /* |
| 580 | 2093 * Give information about an existing swap file. |
| 7 | 2094 * Returns timestamp (0 when unknown). |
| 2095 */ | |
| 2096 static time_t | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2097 swapfile_info(char_u *fname) |
| 7 | 2098 { |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
2099 stat_T st; |
| 7 | 2100 int fd; |
| 2101 struct block0 b0; | |
| 2102 time_t x = (time_t)0; | |
| 1001 | 2103 char *p; |
| 7 | 2104 #ifdef UNIX |
| 2105 char_u uname[B0_UNAME_SIZE]; | |
| 2106 #endif | |
| 2107 | |
| 2108 /* print the swap file date */ | |
| 2109 if (mch_stat((char *)fname, &st) != -1) | |
| 2110 { | |
| 2111 #ifdef UNIX | |
| 2112 /* print name of owner of the file */ | |
| 2113 if (mch_get_uname(st.st_uid, uname, B0_UNAME_SIZE) == OK) | |
| 2114 { | |
| 2115 MSG_PUTS(_(" owned by: ")); | |
| 2116 msg_outtrans(uname); | |
| 2117 MSG_PUTS(_(" dated: ")); | |
| 2118 } | |
| 2119 else | |
| 2120 #endif | |
| 2121 MSG_PUTS(_(" dated: ")); | |
| 2122 x = st.st_mtime; /* Manx C can't do &st.st_mtime */ | |
| 1001 | 2123 p = ctime(&x); /* includes '\n' */ |
| 2124 if (p == NULL) | |
| 2125 MSG_PUTS("(invalid)\n"); | |
| 2126 else | |
| 2127 MSG_PUTS(p); | |
| 7 | 2128 } |
| 2129 | |
| 2130 /* | |
| 2131 * print the original file name | |
| 2132 */ | |
| 2133 fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
| 2134 if (fd >= 0) | |
| 2135 { | |
| 2664 | 2136 if (read_eintr(fd, &b0, sizeof(b0)) == sizeof(b0)) |
| 7 | 2137 { |
| 2138 if (STRNCMP(b0.b0_version, "VIM 3.0", 7) == 0) | |
| 2139 { | |
| 2140 MSG_PUTS(_(" [from Vim version 3.0]")); | |
| 2141 } | |
| 2267 | 2142 else if (ml_check_b0_id(&b0) == FAIL) |
| 7 | 2143 { |
| 2144 MSG_PUTS(_(" [does not look like a Vim swap file]")); | |
| 2145 } | |
| 2146 else | |
| 2147 { | |
| 2148 MSG_PUTS(_(" file name: ")); | |
| 2149 if (b0.b0_fname[0] == NUL) | |
| 9 | 2150 MSG_PUTS(_("[No Name]")); |
| 7 | 2151 else |
| 2152 msg_outtrans(b0.b0_fname); | |
| 2153 | |
| 2154 MSG_PUTS(_("\n modified: ")); | |
| 2155 MSG_PUTS(b0.b0_dirty ? _("YES") : _("no")); | |
| 2156 | |
| 2157 if (*(b0.b0_uname) != NUL) | |
| 2158 { | |
| 2159 MSG_PUTS(_("\n user name: ")); | |
| 2160 msg_outtrans(b0.b0_uname); | |
| 2161 } | |
| 2162 | |
| 2163 if (*(b0.b0_hname) != NUL) | |
| 2164 { | |
| 2165 if (*(b0.b0_uname) != NUL) | |
| 2166 MSG_PUTS(_(" host name: ")); | |
| 2167 else | |
| 2168 MSG_PUTS(_("\n host name: ")); | |
| 2169 msg_outtrans(b0.b0_hname); | |
| 2170 } | |
| 2171 | |
| 2172 if (char_to_long(b0.b0_pid) != 0L) | |
| 2173 { | |
| 2174 MSG_PUTS(_("\n process ID: ")); | |
| 2175 msg_outnum(char_to_long(b0.b0_pid)); | |
|
9536
b2aada04d84e
commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
2176 #if defined(UNIX) |
| 7 | 2177 /* EMX kill() not working correctly, it seems */ |
| 2178 if (kill((pid_t)char_to_long(b0.b0_pid), 0) == 0) | |
| 2179 { | |
|
14923
95400980f7c9
patch 8.1.0473: user doesn't notice file does not exist when swap file does
Bram Moolenaar <Bram@vim.org>
parents:
14909
diff
changeset
|
2180 MSG_PUTS(_(" (STILL RUNNING)")); |
| 7 | 2181 # if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) |
| 2182 process_still_running = TRUE; | |
| 2183 # endif | |
| 2184 } | |
| 2185 #endif | |
| 2186 } | |
| 2187 | |
| 2188 if (b0_magic_wrong(&b0)) | |
| 2189 { | |
|
8212
05b88224cea1
commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
2190 #if defined(MSWIN) |
| 7 | 2191 if (STRNCMP(b0.b0_hname, "PC ", 3) == 0) |
| 2192 MSG_PUTS(_("\n [not usable with this version of Vim]")); | |
| 2193 else | |
| 2194 #endif | |
| 2195 MSG_PUTS(_("\n [not usable on this computer]")); | |
| 2196 } | |
| 2197 } | |
| 2198 } | |
| 2199 else | |
| 2200 MSG_PUTS(_(" [cannot be read]")); | |
| 2201 close(fd); | |
| 2202 } | |
| 2203 else | |
| 2204 MSG_PUTS(_(" [cannot be opened]")); | |
| 2205 msg_putchar('\n'); | |
| 2206 | |
| 2207 return x; | |
| 2208 } | |
| 2209 | |
| 2210 static int | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2211 recov_file_names(char_u **names, char_u *path, int prepend_dot) |
| 7 | 2212 { |
| 2213 int num_names; | |
| 2214 | |
| 2215 /* | |
| 2216 * (Win32 and Win64) never short names, but do prepend a dot. | |
| 2217 * (Not MS-DOS or Win32 or Win64) maybe short name, maybe not: Try both. | |
| 2218 * Only use the short name if it is different. | |
| 2219 */ | |
| 2220 char_u *p; | |
| 2221 int i; | |
| 2222 # ifndef WIN3264 | |
| 2223 int shortname = curbuf->b_shortname; | |
| 2224 | |
| 2225 curbuf->b_shortname = FALSE; | |
| 2226 # endif | |
| 2227 | |
| 2228 num_names = 0; | |
| 2229 | |
| 2230 /* | |
| 2231 * May also add the file name with a dot prepended, for swap file in same | |
| 2232 * dir as original file. | |
| 2233 */ | |
| 2234 if (prepend_dot) | |
| 2235 { | |
| 2236 names[num_names] = modname(path, (char_u *)".sw?", TRUE); | |
| 2237 if (names[num_names] == NULL) | |
| 2238 goto end; | |
| 2239 ++num_names; | |
| 2240 } | |
| 2241 | |
| 2242 /* | |
| 2243 * Form the normal swap file name pattern by appending ".sw?". | |
| 2244 */ | |
| 2245 #ifdef VMS | |
| 2246 names[num_names] = concat_fnames(path, (char_u *)"_sw%", FALSE); | |
| 2247 #else | |
| 2248 names[num_names] = concat_fnames(path, (char_u *)".sw?", FALSE); | |
| 2249 #endif | |
| 2250 if (names[num_names] == NULL) | |
| 2251 goto end; | |
| 2252 if (num_names >= 1) /* check if we have the same name twice */ | |
| 2253 { | |
| 2254 p = names[num_names - 1]; | |
| 2255 i = (int)STRLEN(names[num_names - 1]) - (int)STRLEN(names[num_names]); | |
| 2256 if (i > 0) | |
| 2257 p += i; /* file name has been expanded to full path */ | |
| 2258 | |
| 2259 if (STRCMP(p, names[num_names]) != 0) | |
| 2260 ++num_names; | |
| 2261 else | |
| 2262 vim_free(names[num_names]); | |
| 2263 } | |
| 2264 else | |
| 2265 ++num_names; | |
| 2266 | |
| 2267 # ifndef WIN3264 | |
| 2268 /* | |
| 2269 * Also try with 'shortname' set, in case the file is on a DOS filesystem. | |
| 2270 */ | |
| 2271 curbuf->b_shortname = TRUE; | |
| 2272 #ifdef VMS | |
| 2273 names[num_names] = modname(path, (char_u *)"_sw%", FALSE); | |
| 2274 #else | |
| 2275 names[num_names] = modname(path, (char_u *)".sw?", FALSE); | |
| 2276 #endif | |
| 2277 if (names[num_names] == NULL) | |
| 2278 goto end; | |
| 2279 | |
| 2280 /* | |
| 2281 * Remove the one from 'shortname', if it's the same as with 'noshortname'. | |
| 2282 */ | |
| 2283 p = names[num_names]; | |
| 2284 i = STRLEN(names[num_names]) - STRLEN(names[num_names - 1]); | |
| 2285 if (i > 0) | |
| 2286 p += i; /* file name has been expanded to full path */ | |
| 2287 if (STRCMP(names[num_names - 1], p) == 0) | |
| 2288 vim_free(names[num_names]); | |
| 2289 else | |
| 2290 ++num_names; | |
| 2291 # endif | |
| 2292 | |
| 2293 end: | |
| 2294 # ifndef WIN3264 | |
| 2295 curbuf->b_shortname = shortname; | |
| 2296 # endif | |
| 2297 | |
| 2298 return num_names; | |
| 2299 } | |
| 2300 | |
| 2301 /* | |
| 2302 * sync all memlines | |
| 2303 * | |
| 2304 * If 'check_file' is TRUE, check if original file exists and was not changed. | |
| 2305 * If 'check_char' is TRUE, stop syncing when character becomes available, but | |
| 2306 * always sync at least one block. | |
| 2307 */ | |
| 2308 void | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2309 ml_sync_all(int check_file, int check_char) |
| 7 | 2310 { |
| 2311 buf_T *buf; | |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
2312 stat_T st; |
| 7 | 2313 |
|
9649
fd9727ae3c49
commit https://github.com/vim/vim/commit/2932359000b2f918d5fade79ea4d124d5943cd07
Christian Brabandt <cb@256bit.org>
parents:
9536
diff
changeset
|
2314 FOR_ALL_BUFFERS(buf) |
| 7 | 2315 { |
| 2316 if (buf->b_ml.ml_mfp == NULL || buf->b_ml.ml_mfp->mf_fname == NULL) | |
| 2317 continue; /* no file */ | |
| 2318 | |
| 2319 ml_flush_line(buf); /* flush buffered line */ | |
| 2320 /* flush locked block */ | |
| 2321 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); | |
| 2322 if (bufIsChanged(buf) && check_file && mf_need_trans(buf->b_ml.ml_mfp) | |
| 2323 && buf->b_ffname != NULL) | |
| 2324 { | |
| 2325 /* | |
| 2326 * If the original file does not exist anymore or has been changed | |
| 2327 * call ml_preserve() to get rid of all negative numbered blocks. | |
| 2328 */ | |
| 2329 if (mch_stat((char *)buf->b_ffname, &st) == -1 | |
| 2330 || st.st_mtime != buf->b_mtime_read | |
|
2241
60da25e3aab7
Correct use of long instead of off_t for file size. (James Vega)
Bram Moolenaar <bram@vim.org>
parents:
2240
diff
changeset
|
2331 || st.st_size != buf->b_orig_size) |
| 7 | 2332 { |
| 2333 ml_preserve(buf, FALSE); | |
| 2334 did_check_timestamps = FALSE; | |
| 2335 need_check_timestamps = TRUE; /* give message later */ | |
| 2336 } | |
| 2337 } | |
| 2338 if (buf->b_ml.ml_mfp->mf_dirty) | |
| 2339 { | |
| 2340 (void)mf_sync(buf->b_ml.ml_mfp, (check_char ? MFS_STOP : 0) | |
| 2341 | (bufIsChanged(buf) ? MFS_FLUSH : 0)); | |
| 2342 if (check_char && ui_char_avail()) /* character available now */ | |
| 2343 break; | |
| 2344 } | |
| 2345 } | |
| 2346 } | |
| 2347 | |
| 2348 /* | |
| 2349 * sync one buffer, including negative blocks | |
| 2350 * | |
| 2351 * after this all the blocks are in the swap file | |
| 2352 * | |
| 2353 * Used for the :preserve command and when the original file has been | |
| 2354 * changed or deleted. | |
| 2355 * | |
| 2356 * when message is TRUE the success of preserving is reported | |
| 2357 */ | |
| 2358 void | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2359 ml_preserve(buf_T *buf, int message) |
| 7 | 2360 { |
| 2361 bhdr_T *hp; | |
| 2362 linenr_T lnum; | |
| 2363 memfile_T *mfp = buf->b_ml.ml_mfp; | |
| 2364 int status; | |
| 2365 int got_int_save = got_int; | |
| 2366 | |
| 2367 if (mfp == NULL || mfp->mf_fname == NULL) | |
| 2368 { | |
| 2369 if (message) | |
| 2370 EMSG(_("E313: Cannot preserve, there is no swap file")); | |
| 2371 return; | |
| 2372 } | |
| 2373 | |
| 2374 /* We only want to stop when interrupted here, not when interrupted | |
| 2375 * before. */ | |
| 2376 got_int = FALSE; | |
| 2377 | |
| 2378 ml_flush_line(buf); /* flush buffered line */ | |
| 2379 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush locked block */ | |
| 2380 status = mf_sync(mfp, MFS_ALL | MFS_FLUSH); | |
| 2381 | |
| 2382 /* stack is invalid after mf_sync(.., MFS_ALL) */ | |
| 2383 buf->b_ml.ml_stack_top = 0; | |
| 2384 | |
| 2385 /* | |
| 2386 * Some of the data blocks may have been changed from negative to | |
| 2387 * positive block number. In that case the pointer blocks need to be | |
| 2388 * updated. | |
| 2389 * | |
| 2390 * We don't know in which pointer block the references are, so we visit | |
| 2391 * all data blocks until there are no more translations to be done (or | |
| 2392 * we hit the end of the file, which can only happen in case a write fails, | |
| 2393 * e.g. when file system if full). | |
| 2394 * ml_find_line() does the work by translating the negative block numbers | |
| 2395 * when getting the first line of each data block. | |
| 2396 */ | |
| 2397 if (mf_need_trans(mfp) && !got_int) | |
| 2398 { | |
| 2399 lnum = 1; | |
| 2400 while (mf_need_trans(mfp) && lnum <= buf->b_ml.ml_line_count) | |
| 2401 { | |
| 2402 hp = ml_find_line(buf, lnum, ML_FIND); | |
| 2403 if (hp == NULL) | |
| 2404 { | |
| 2405 status = FAIL; | |
| 2406 goto theend; | |
| 2407 } | |
| 2408 CHECK(buf->b_ml.ml_locked_low != lnum, "low != lnum"); | |
| 2409 lnum = buf->b_ml.ml_locked_high + 1; | |
| 2410 } | |
| 2411 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush locked block */ | |
| 2412 /* sync the updated pointer blocks */ | |
| 2413 if (mf_sync(mfp, MFS_ALL | MFS_FLUSH) == FAIL) | |
| 2414 status = FAIL; | |
| 2415 buf->b_ml.ml_stack_top = 0; /* stack is invalid now */ | |
| 2416 } | |
| 2417 theend: | |
| 2418 got_int |= got_int_save; | |
| 2419 | |
| 2420 if (message) | |
| 2421 { | |
| 2422 if (status == OK) | |
| 2423 MSG(_("File preserved")); | |
| 2424 else | |
| 2425 EMSG(_("E314: Preserve failed")); | |
| 2426 } | |
| 2427 } | |
| 2428 | |
| 2429 /* | |
| 2430 * NOTE: The pointer returned by the ml_get_*() functions only remains valid | |
| 2431 * until the next call! | |
| 2432 * line1 = ml_get(1); | |
| 2433 * line2 = ml_get(2); // line1 is now invalid! | |
| 2434 * Make a copy of the line if necessary. | |
| 2435 */ | |
| 2436 /* | |
| 2657 | 2437 * Return a pointer to a (read-only copy of a) line. |
| 7 | 2438 * |
| 2439 * On failure an error message is given and IObuff is returned (to avoid | |
| 2440 * having to check for error everywhere). | |
| 2441 */ | |
| 2442 char_u * | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2443 ml_get(linenr_T lnum) |
| 7 | 2444 { |
| 2445 return ml_get_buf(curbuf, lnum, FALSE); | |
| 2446 } | |
| 2447 | |
| 2448 /* | |
| 2657 | 2449 * Return pointer to position "pos". |
| 7 | 2450 */ |
| 2451 char_u * | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2452 ml_get_pos(pos_T *pos) |
| 7 | 2453 { |
| 2454 return (ml_get_buf(curbuf, pos->lnum, FALSE) + pos->col); | |
| 2455 } | |
| 2456 | |
| 2457 /* | |
| 2657 | 2458 * Return pointer to cursor line. |
| 7 | 2459 */ |
| 2460 char_u * | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2461 ml_get_curline(void) |
| 7 | 2462 { |
| 2463 return ml_get_buf(curbuf, curwin->w_cursor.lnum, FALSE); | |
| 2464 } | |
| 2465 | |
| 2466 /* | |
| 2657 | 2467 * Return pointer to cursor position. |
| 7 | 2468 */ |
| 2469 char_u * | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2470 ml_get_cursor(void) |
| 7 | 2471 { |
| 2472 return (ml_get_buf(curbuf, curwin->w_cursor.lnum, FALSE) + | |
| 2473 curwin->w_cursor.col); | |
| 2474 } | |
| 2475 | |
| 2476 /* | |
| 2657 | 2477 * Return a pointer to a line in a specific buffer |
| 7 | 2478 * |
| 2479 * "will_change": if TRUE mark the buffer dirty (chars in the line will be | |
| 2480 * changed) | |
| 2481 */ | |
| 2482 char_u * | |
|
7827
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2483 ml_get_buf( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2484 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2485 linenr_T lnum, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2486 int will_change) /* line will be changed */ |
| 7 | 2487 { |
| 1068 | 2488 bhdr_T *hp; |
| 2489 DATA_BL *dp; | |
| 2490 static int recursive = 0; | |
| 7 | 2491 |
| 2492 if (lnum > buf->b_ml.ml_line_count) /* invalid line number */ | |
| 2493 { | |
| 1068 | 2494 if (recursive == 0) |
| 2495 { | |
| 2496 /* Avoid giving this message for a recursive call, may happen when | |
| 2497 * the GUI redraws part of the text. */ | |
| 2498 ++recursive; | |
|
10359
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2499 IEMSGN(_("E315: ml_get: invalid lnum: %ld"), lnum); |
| 1068 | 2500 --recursive; |
| 2501 } | |
| 7 | 2502 errorret: |
| 2503 STRCPY(IObuff, "???"); | |
| 2504 return IObuff; | |
| 2505 } | |
| 2506 if (lnum <= 0) /* pretend line 0 is line 1 */ | |
| 2507 lnum = 1; | |
| 2508 | |
| 2509 if (buf->b_ml.ml_mfp == NULL) /* there are no lines */ | |
| 2510 return (char_u *)""; | |
| 2511 | |
|
2108
3cdf2a653e00
updated for version 7.2.391
Bram Moolenaar <bram@zimbu.org>
parents:
2075
diff
changeset
|
2512 /* |
|
3cdf2a653e00
updated for version 7.2.391
Bram Moolenaar <bram@zimbu.org>
parents:
2075
diff
changeset
|
2513 * See if it is the same line as requested last time. |
|
3cdf2a653e00
updated for version 7.2.391
Bram Moolenaar <bram@zimbu.org>
parents:
2075
diff
changeset
|
2514 * Otherwise may need to flush last used line. |
|
3cdf2a653e00
updated for version 7.2.391
Bram Moolenaar <bram@zimbu.org>
parents:
2075
diff
changeset
|
2515 * Don't use the last used line when 'swapfile' is reset, need to load all |
|
3cdf2a653e00
updated for version 7.2.391
Bram Moolenaar <bram@zimbu.org>
parents:
2075
diff
changeset
|
2516 * blocks. |
|
3cdf2a653e00
updated for version 7.2.391
Bram Moolenaar <bram@zimbu.org>
parents:
2075
diff
changeset
|
2517 */ |
| 1066 | 2518 if (buf->b_ml.ml_line_lnum != lnum || mf_dont_release) |
| 7 | 2519 { |
|
15138
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2520 unsigned start, end; |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2521 colnr_T len; |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2522 int idx; |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2523 |
| 7 | 2524 ml_flush_line(buf); |
| 2525 | |
| 2526 /* | |
| 2527 * Find the data block containing the line. | |
| 2528 * This also fills the stack with the blocks from the root to the data | |
| 2529 * block and releases any locked block. | |
| 2530 */ | |
| 2531 if ((hp = ml_find_line(buf, lnum, ML_FIND)) == NULL) | |
| 2532 { | |
| 1068 | 2533 if (recursive == 0) |
| 2534 { | |
| 2535 /* Avoid giving this message for a recursive call, may happen | |
| 2536 * when the GUI redraws part of the text. */ | |
| 2537 ++recursive; | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2538 IEMSGN(_("E316: ml_get: cannot find line %ld"), lnum); |
| 1068 | 2539 --recursive; |
| 2540 } | |
| 7 | 2541 goto errorret; |
| 2542 } | |
| 2543 | |
| 2544 dp = (DATA_BL *)(hp->bh_data); | |
| 2545 | |
|
15138
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2546 idx = lnum - buf->b_ml.ml_locked_low; |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2547 start = ((dp->db_index[idx]) & DB_INDEX_MASK); |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2548 // The text ends where the previous line starts. The first line ends |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2549 // at the end of the block. |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2550 if (idx == 0) |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2551 end = dp->db_txt_end; |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2552 else |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2553 end = ((dp->db_index[idx - 1]) & DB_INDEX_MASK); |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2554 len = end - start; |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2555 |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2556 buf->b_ml.ml_line_ptr = (char_u *)dp + start; |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2557 buf->b_ml.ml_line_len = len; |
| 7 | 2558 buf->b_ml.ml_line_lnum = lnum; |
| 2559 buf->b_ml.ml_flags &= ~ML_LINE_DIRTY; | |
| 2560 } | |
| 2561 if (will_change) | |
| 2562 buf->b_ml.ml_flags |= (ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 2563 | |
| 2564 return buf->b_ml.ml_line_ptr; | |
| 2565 } | |
| 2566 | |
| 2567 /* | |
| 2568 * Check if a line that was just obtained by a call to ml_get | |
| 2569 * is in allocated memory. | |
| 2570 */ | |
| 2571 int | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2572 ml_line_alloced(void) |
| 7 | 2573 { |
| 2574 return (curbuf->b_ml.ml_flags & ML_LINE_DIRTY); | |
| 2575 } | |
| 2576 | |
| 2577 /* | |
| 2578 * Append a line after lnum (may be 0 to insert a line in front of the file). | |
| 2579 * "line" does not need to be allocated, but can't be another line in a | |
| 2580 * buffer, unlocking may make it invalid. | |
| 2581 * | |
| 2582 * newfile: TRUE when starting to edit a new file, meaning that pe_old_lnum | |
| 2583 * will be set for recovery | |
| 2584 * Check: The caller of this function should probably also call | |
| 2585 * appended_lines(). | |
| 2586 * | |
| 2587 * return FAIL for failure, OK otherwise | |
| 2588 */ | |
| 2589 int | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2590 ml_append( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2591 linenr_T lnum, /* append after this line (can be 0) */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2592 char_u *line, /* text of the new line */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2593 colnr_T len, /* length of new line, including NUL, or 0 */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2594 int newfile) /* flag, see above */ |
| 7 | 2595 { |
| 2596 /* When starting up, we might still need to create the memfile */ | |
|
2394
a3aca345aafa
Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents:
2360
diff
changeset
|
2597 if (curbuf->b_ml.ml_mfp == NULL && open_buffer(FALSE, NULL, 0) == FAIL) |
| 7 | 2598 return FAIL; |
| 2599 | |
| 2600 if (curbuf->b_ml.ml_line_lnum != 0) | |
| 2601 ml_flush_line(curbuf); | |
| 2602 return ml_append_int(curbuf, lnum, line, len, newfile, FALSE); | |
| 2603 } | |
| 2604 | |
|
12477
68d7bc045dbe
patch 8.0.1118: FEAT_WINDOWS adds a lot of #ifdefs
Christian Brabandt <cb@256bit.org>
parents:
11158
diff
changeset
|
2605 #if defined(FEAT_SPELL) || defined(FEAT_QUICKFIX) || defined(PROTO) |
| 625 | 2606 /* |
| 2607 * Like ml_append() but for an arbitrary buffer. The buffer must already have | |
| 2608 * a memline. | |
| 2609 */ | |
| 2610 int | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2611 ml_append_buf( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2612 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2613 linenr_T lnum, /* append after this line (can be 0) */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2614 char_u *line, /* text of the new line */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2615 colnr_T len, /* length of new line, including NUL, or 0 */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2616 int newfile) /* flag, see above */ |
| 625 | 2617 { |
| 2618 if (buf->b_ml.ml_mfp == NULL) | |
| 2619 return FAIL; | |
| 2620 | |
| 2621 if (buf->b_ml.ml_line_lnum != 0) | |
| 2622 ml_flush_line(buf); | |
| 2623 return ml_append_int(buf, lnum, line, len, newfile, FALSE); | |
| 2624 } | |
| 2625 #endif | |
| 2626 | |
| 7 | 2627 static int |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2628 ml_append_int( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2629 buf_T *buf, |
|
15138
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2630 linenr_T lnum, // append after this line (can be 0) |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2631 char_u *line, // text of the new line |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2632 colnr_T len_arg, // length of line, including NUL, or 0 |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2633 int newfile, // flag, see above |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2634 int mark) // mark the new line |
| 7 | 2635 { |
|
15138
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2636 colnr_T len = len_arg; // length of line, including NUL, or 0 |
| 7 | 2637 int i; |
|
15138
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2638 int line_count; // number of indexes in current block |
| 7 | 2639 int offset; |
| 2640 int from, to; | |
|
15138
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2641 int space_needed; // space needed for new line |
| 7 | 2642 int page_size; |
| 2643 int page_count; | |
|
15138
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2644 int db_idx; // index for lnum in data block |
| 7 | 2645 bhdr_T *hp; |
| 2646 memfile_T *mfp; | |
| 2647 DATA_BL *dp; | |
| 2648 PTR_BL *pp; | |
| 2649 infoptr_T *ip; | |
| 2650 | |
| 2651 /* lnum out of range */ | |
| 2652 if (lnum > buf->b_ml.ml_line_count || buf->b_ml.ml_mfp == NULL) | |
| 2653 return FAIL; | |
| 2654 | |
| 2655 if (lowest_marked && lowest_marked > lnum) | |
| 2656 lowest_marked = lnum + 1; | |
| 2657 | |
| 2658 if (len == 0) | |
|
15138
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2659 len = (colnr_T)STRLEN(line) + 1; // space needed for the text |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2660 space_needed = len + INDEX_SIZE; // space needed for text + index |
| 7 | 2661 |
| 2662 mfp = buf->b_ml.ml_mfp; | |
| 2663 page_size = mfp->mf_page_size; | |
| 2664 | |
| 2665 /* | |
| 2666 * find the data block containing the previous line | |
| 2667 * This also fills the stack with the blocks from the root to the data block | |
| 2668 * This also releases any locked block. | |
| 2669 */ | |
| 2670 if ((hp = ml_find_line(buf, lnum == 0 ? (linenr_T)1 : lnum, | |
| 2671 ML_INSERT)) == NULL) | |
| 2672 return FAIL; | |
| 2673 | |
| 2674 buf->b_ml.ml_flags &= ~ML_EMPTY; | |
| 2675 | |
| 2676 if (lnum == 0) /* got line one instead, correct db_idx */ | |
| 2677 db_idx = -1; /* careful, it is negative! */ | |
| 2678 else | |
| 2679 db_idx = lnum - buf->b_ml.ml_locked_low; | |
| 2680 /* get line count before the insertion */ | |
| 2681 line_count = buf->b_ml.ml_locked_high - buf->b_ml.ml_locked_low; | |
| 2682 | |
| 2683 dp = (DATA_BL *)(hp->bh_data); | |
| 2684 | |
| 2685 /* | |
| 2686 * If | |
| 2687 * - there is not enough room in the current block | |
| 2688 * - appending to the last line in the block | |
| 2689 * - not appending to the last line in the file | |
| 2690 * insert in front of the next block. | |
| 2691 */ | |
| 2692 if ((int)dp->db_free < space_needed && db_idx == line_count - 1 | |
| 2693 && lnum < buf->b_ml.ml_line_count) | |
| 2694 { | |
| 2695 /* | |
| 2696 * Now that the line is not going to be inserted in the block that we | |
| 2697 * expected, the line count has to be adjusted in the pointer blocks | |
| 2698 * by using ml_locked_lineadd. | |
| 2699 */ | |
| 2700 --(buf->b_ml.ml_locked_lineadd); | |
| 2701 --(buf->b_ml.ml_locked_high); | |
| 2702 if ((hp = ml_find_line(buf, lnum + 1, ML_INSERT)) == NULL) | |
| 2703 return FAIL; | |
| 2704 | |
| 2705 db_idx = -1; /* careful, it is negative! */ | |
| 2706 /* get line count before the insertion */ | |
| 2707 line_count = buf->b_ml.ml_locked_high - buf->b_ml.ml_locked_low; | |
| 2708 CHECK(buf->b_ml.ml_locked_low != lnum + 1, "locked_low != lnum + 1"); | |
| 2709 | |
| 2710 dp = (DATA_BL *)(hp->bh_data); | |
| 2711 } | |
| 2712 | |
| 2713 ++buf->b_ml.ml_line_count; | |
| 2714 | |
| 2715 if ((int)dp->db_free >= space_needed) /* enough room in data block */ | |
| 2716 { | |
| 2717 /* | |
| 2718 * Insert new line in existing data block, or in data block allocated above. | |
| 2719 */ | |
| 2720 dp->db_txt_start -= len; | |
| 2721 dp->db_free -= space_needed; | |
| 2722 ++(dp->db_line_count); | |
| 2723 | |
| 2724 /* | |
| 2725 * move the text of the lines that follow to the front | |
| 2726 * adjust the indexes of the lines that follow | |
| 2727 */ | |
| 2728 if (line_count > db_idx + 1) /* if there are following lines */ | |
| 2729 { | |
| 2730 /* | |
| 2731 * Offset is the start of the previous line. | |
| 2732 * This will become the character just after the new line. | |
| 2733 */ | |
| 2734 if (db_idx < 0) | |
| 2735 offset = dp->db_txt_end; | |
| 2736 else | |
| 2737 offset = ((dp->db_index[db_idx]) & DB_INDEX_MASK); | |
| 2738 mch_memmove((char *)dp + dp->db_txt_start, | |
| 2739 (char *)dp + dp->db_txt_start + len, | |
| 2740 (size_t)(offset - (dp->db_txt_start + len))); | |
| 2741 for (i = line_count - 1; i > db_idx; --i) | |
| 2742 dp->db_index[i + 1] = dp->db_index[i] - len; | |
| 2743 dp->db_index[db_idx + 1] = offset - len; | |
| 2744 } | |
|
15138
9df130fd5e0d
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Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2745 else |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
2746 // add line at the end (which is the start of the text) |
| 7 | 2747 dp->db_index[db_idx + 1] = dp->db_txt_start; |
| 2748 | |
| 2749 /* | |
| 2750 * copy the text into the block | |
| 2751 */ | |
| 2752 mch_memmove((char *)dp + dp->db_index[db_idx + 1], line, (size_t)len); | |
| 2753 if (mark) | |
| 2754 dp->db_index[db_idx + 1] |= DB_MARKED; | |
| 2755 | |
| 2756 /* | |
| 2757 * Mark the block dirty. | |
| 2758 */ | |
| 2759 buf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 2760 if (!newfile) | |
| 2761 buf->b_ml.ml_flags |= ML_LOCKED_POS; | |
| 2762 } | |
| 2763 else /* not enough space in data block */ | |
| 2764 { | |
| 2765 /* | |
| 2766 * If there is not enough room we have to create a new data block and copy some | |
| 2767 * lines into it. | |
| 2768 * Then we have to insert an entry in the pointer block. | |
| 2769 * If this pointer block also is full, we go up another block, and so on, up | |
| 2770 * to the root if necessary. | |
| 2771 * The line counts in the pointer blocks have already been adjusted by | |
| 2772 * ml_find_line(). | |
| 2773 */ | |
| 2774 long line_count_left, line_count_right; | |
| 2775 int page_count_left, page_count_right; | |
| 2776 bhdr_T *hp_left; | |
| 2777 bhdr_T *hp_right; | |
| 2778 bhdr_T *hp_new; | |
| 2779 int lines_moved; | |
| 2780 int data_moved = 0; /* init to shut up gcc */ | |
| 2781 int total_moved = 0; /* init to shut up gcc */ | |
| 2782 DATA_BL *dp_right, *dp_left; | |
| 2783 int stack_idx; | |
| 2784 int in_left; | |
| 2785 int lineadd; | |
| 2786 blocknr_T bnum_left, bnum_right; | |
| 2787 linenr_T lnum_left, lnum_right; | |
| 2788 int pb_idx; | |
| 2789 PTR_BL *pp_new; | |
| 2790 | |
| 2791 /* | |
| 2792 * We are going to allocate a new data block. Depending on the | |
| 2793 * situation it will be put to the left or right of the existing | |
| 2794 * block. If possible we put the new line in the left block and move | |
| 2795 * the lines after it to the right block. Otherwise the new line is | |
| 2796 * also put in the right block. This method is more efficient when | |
| 2797 * inserting a lot of lines at one place. | |
| 2798 */ | |
| 2799 if (db_idx < 0) /* left block is new, right block is existing */ | |
| 2800 { | |
| 2801 lines_moved = 0; | |
| 2802 in_left = TRUE; | |
| 2803 /* space_needed does not change */ | |
| 2804 } | |
| 2805 else /* left block is existing, right block is new */ | |
| 2806 { | |
| 2807 lines_moved = line_count - db_idx - 1; | |
| 2808 if (lines_moved == 0) | |
| 2809 in_left = FALSE; /* put new line in right block */ | |
| 2810 /* space_needed does not change */ | |
| 2811 else | |
| 2812 { | |
| 2813 data_moved = ((dp->db_index[db_idx]) & DB_INDEX_MASK) - | |
| 2814 dp->db_txt_start; | |
| 2815 total_moved = data_moved + lines_moved * INDEX_SIZE; | |
| 2816 if ((int)dp->db_free + total_moved >= space_needed) | |
| 2817 { | |
| 2818 in_left = TRUE; /* put new line in left block */ | |
| 2819 space_needed = total_moved; | |
| 2820 } | |
| 2821 else | |
| 2822 { | |
| 2823 in_left = FALSE; /* put new line in right block */ | |
| 2824 space_needed += total_moved; | |
| 2825 } | |
| 2826 } | |
| 2827 } | |
| 2828 | |
| 2829 page_count = ((space_needed + HEADER_SIZE) + page_size - 1) / page_size; | |
| 2830 if ((hp_new = ml_new_data(mfp, newfile, page_count)) == NULL) | |
| 2831 { | |
| 2832 /* correct line counts in pointer blocks */ | |
| 2833 --(buf->b_ml.ml_locked_lineadd); | |
| 2834 --(buf->b_ml.ml_locked_high); | |
| 2835 return FAIL; | |
| 2836 } | |
| 2837 if (db_idx < 0) /* left block is new */ | |
| 2838 { | |
| 2839 hp_left = hp_new; | |
| 2840 hp_right = hp; | |
| 2841 line_count_left = 0; | |
| 2842 line_count_right = line_count; | |
| 2843 } | |
| 2844 else /* right block is new */ | |
| 2845 { | |
| 2846 hp_left = hp; | |
| 2847 hp_right = hp_new; | |
| 2848 line_count_left = line_count; | |
| 2849 line_count_right = 0; | |
| 2850 } | |
| 2851 dp_right = (DATA_BL *)(hp_right->bh_data); | |
| 2852 dp_left = (DATA_BL *)(hp_left->bh_data); | |
| 2853 bnum_left = hp_left->bh_bnum; | |
| 2854 bnum_right = hp_right->bh_bnum; | |
| 2855 page_count_left = hp_left->bh_page_count; | |
| 2856 page_count_right = hp_right->bh_page_count; | |
| 2857 | |
| 2858 /* | |
| 2859 * May move the new line into the right/new block. | |
| 2860 */ | |
| 2861 if (!in_left) | |
| 2862 { | |
| 2863 dp_right->db_txt_start -= len; | |
| 2864 dp_right->db_free -= len + INDEX_SIZE; | |
| 2865 dp_right->db_index[0] = dp_right->db_txt_start; | |
| 2866 if (mark) | |
| 2867 dp_right->db_index[0] |= DB_MARKED; | |
| 2868 | |
| 2869 mch_memmove((char *)dp_right + dp_right->db_txt_start, | |
| 2870 line, (size_t)len); | |
| 2871 ++line_count_right; | |
| 2872 } | |
| 2873 /* | |
| 2874 * may move lines from the left/old block to the right/new one. | |
| 2875 */ | |
| 2876 if (lines_moved) | |
| 2877 { | |
| 2878 /* | |
| 2879 */ | |
| 2880 dp_right->db_txt_start -= data_moved; | |
| 2881 dp_right->db_free -= total_moved; | |
| 2882 mch_memmove((char *)dp_right + dp_right->db_txt_start, | |
| 2883 (char *)dp_left + dp_left->db_txt_start, | |
| 2884 (size_t)data_moved); | |
| 2885 offset = dp_right->db_txt_start - dp_left->db_txt_start; | |
| 2886 dp_left->db_txt_start += data_moved; | |
| 2887 dp_left->db_free += total_moved; | |
| 2888 | |
| 2889 /* | |
| 2890 * update indexes in the new block | |
| 2891 */ | |
| 2892 for (to = line_count_right, from = db_idx + 1; | |
| 2893 from < line_count_left; ++from, ++to) | |
| 2894 dp_right->db_index[to] = dp->db_index[from] + offset; | |
| 2895 line_count_right += lines_moved; | |
| 2896 line_count_left -= lines_moved; | |
| 2897 } | |
| 2898 | |
| 2899 /* | |
| 2900 * May move the new line into the left (old or new) block. | |
| 2901 */ | |
| 2902 if (in_left) | |
| 2903 { | |
| 2904 dp_left->db_txt_start -= len; | |
| 2905 dp_left->db_free -= len + INDEX_SIZE; | |
| 2906 dp_left->db_index[line_count_left] = dp_left->db_txt_start; | |
| 2907 if (mark) | |
| 2908 dp_left->db_index[line_count_left] |= DB_MARKED; | |
| 2909 mch_memmove((char *)dp_left + dp_left->db_txt_start, | |
| 2910 line, (size_t)len); | |
| 2911 ++line_count_left; | |
| 2912 } | |
| 2913 | |
| 2914 if (db_idx < 0) /* left block is new */ | |
| 2915 { | |
| 2916 lnum_left = lnum + 1; | |
| 2917 lnum_right = 0; | |
| 2918 } | |
| 2919 else /* right block is new */ | |
| 2920 { | |
| 2921 lnum_left = 0; | |
| 2922 if (in_left) | |
| 2923 lnum_right = lnum + 2; | |
| 2924 else | |
| 2925 lnum_right = lnum + 1; | |
| 2926 } | |
| 2927 dp_left->db_line_count = line_count_left; | |
| 2928 dp_right->db_line_count = line_count_right; | |
| 2929 | |
| 2930 /* | |
| 2931 * release the two data blocks | |
| 2932 * The new one (hp_new) already has a correct blocknumber. | |
| 2933 * The old one (hp, in ml_locked) gets a positive blocknumber if | |
| 2934 * we changed it and we are not editing a new file. | |
| 2935 */ | |
| 2936 if (lines_moved || in_left) | |
| 2937 buf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 2938 if (!newfile && db_idx >= 0 && in_left) | |
| 2939 buf->b_ml.ml_flags |= ML_LOCKED_POS; | |
| 2940 mf_put(mfp, hp_new, TRUE, FALSE); | |
| 2941 | |
| 2942 /* | |
| 2943 * flush the old data block | |
| 2944 * set ml_locked_lineadd to 0, because the updating of the | |
| 2945 * pointer blocks is done below | |
| 2946 */ | |
| 2947 lineadd = buf->b_ml.ml_locked_lineadd; | |
| 2948 buf->b_ml.ml_locked_lineadd = 0; | |
| 2949 ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush data block */ | |
| 2950 | |
| 2951 /* | |
| 2952 * update pointer blocks for the new data block | |
| 2953 */ | |
| 2954 for (stack_idx = buf->b_ml.ml_stack_top - 1; stack_idx >= 0; | |
| 2955 --stack_idx) | |
| 2956 { | |
| 2957 ip = &(buf->b_ml.ml_stack[stack_idx]); | |
| 2958 pb_idx = ip->ip_index; | |
| 2959 if ((hp = mf_get(mfp, ip->ip_bnum, 1)) == NULL) | |
| 2960 return FAIL; | |
| 2961 pp = (PTR_BL *)(hp->bh_data); /* must be pointer block */ | |
| 2962 if (pp->pb_id != PTR_ID) | |
| 2963 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2964 IEMSG(_("E317: pointer block id wrong 3")); |
| 7 | 2965 mf_put(mfp, hp, FALSE, FALSE); |
| 2966 return FAIL; | |
| 2967 } | |
| 2968 /* | |
| 2969 * TODO: If the pointer block is full and we are adding at the end | |
| 2970 * try to insert in front of the next block | |
| 2971 */ | |
| 2972 /* block not full, add one entry */ | |
| 2973 if (pp->pb_count < pp->pb_count_max) | |
| 2974 { | |
| 2975 if (pb_idx + 1 < (int)pp->pb_count) | |
| 2976 mch_memmove(&pp->pb_pointer[pb_idx + 2], | |
| 2977 &pp->pb_pointer[pb_idx + 1], | |
| 2978 (size_t)(pp->pb_count - pb_idx - 1) * sizeof(PTR_EN)); | |
| 2979 ++pp->pb_count; | |
| 2980 pp->pb_pointer[pb_idx].pe_line_count = line_count_left; | |
| 2981 pp->pb_pointer[pb_idx].pe_bnum = bnum_left; | |
| 2982 pp->pb_pointer[pb_idx].pe_page_count = page_count_left; | |
| 2983 pp->pb_pointer[pb_idx + 1].pe_line_count = line_count_right; | |
| 2984 pp->pb_pointer[pb_idx + 1].pe_bnum = bnum_right; | |
| 2985 pp->pb_pointer[pb_idx + 1].pe_page_count = page_count_right; | |
| 2986 | |
| 2987 if (lnum_left != 0) | |
| 2988 pp->pb_pointer[pb_idx].pe_old_lnum = lnum_left; | |
| 2989 if (lnum_right != 0) | |
| 2990 pp->pb_pointer[pb_idx + 1].pe_old_lnum = lnum_right; | |
| 2991 | |
| 2992 mf_put(mfp, hp, TRUE, FALSE); | |
| 2993 buf->b_ml.ml_stack_top = stack_idx + 1; /* truncate stack */ | |
| 2994 | |
| 2995 if (lineadd) | |
| 2996 { | |
| 2997 --(buf->b_ml.ml_stack_top); | |
| 1167 | 2998 /* fix line count for rest of blocks in the stack */ |
| 7 | 2999 ml_lineadd(buf, lineadd); |
| 3000 /* fix stack itself */ | |
| 3001 buf->b_ml.ml_stack[buf->b_ml.ml_stack_top].ip_high += | |
| 3002 lineadd; | |
| 3003 ++(buf->b_ml.ml_stack_top); | |
| 3004 } | |
| 3005 | |
| 3006 /* | |
| 3007 * We are finished, break the loop here. | |
| 3008 */ | |
| 3009 break; | |
| 3010 } | |
| 3011 else /* pointer block full */ | |
| 3012 { | |
| 3013 /* | |
| 3014 * split the pointer block | |
| 3015 * allocate a new pointer block | |
| 3016 * move some of the pointer into the new block | |
| 3017 * prepare for updating the parent block | |
| 3018 */ | |
| 3019 for (;;) /* do this twice when splitting block 1 */ | |
| 3020 { | |
| 3021 hp_new = ml_new_ptr(mfp); | |
| 3022 if (hp_new == NULL) /* TODO: try to fix tree */ | |
| 3023 return FAIL; | |
| 3024 pp_new = (PTR_BL *)(hp_new->bh_data); | |
| 3025 | |
| 3026 if (hp->bh_bnum != 1) | |
| 3027 break; | |
| 3028 | |
| 3029 /* | |
| 3030 * if block 1 becomes full the tree is given an extra level | |
| 3031 * The pointers from block 1 are moved into the new block. | |
| 3032 * block 1 is updated to point to the new block | |
| 3033 * then continue to split the new block | |
| 3034 */ | |
| 3035 mch_memmove(pp_new, pp, (size_t)page_size); | |
| 3036 pp->pb_count = 1; | |
| 3037 pp->pb_pointer[0].pe_bnum = hp_new->bh_bnum; | |
| 3038 pp->pb_pointer[0].pe_line_count = buf->b_ml.ml_line_count; | |
| 3039 pp->pb_pointer[0].pe_old_lnum = 1; | |
| 3040 pp->pb_pointer[0].pe_page_count = 1; | |
| 3041 mf_put(mfp, hp, TRUE, FALSE); /* release block 1 */ | |
| 3042 hp = hp_new; /* new block is to be split */ | |
| 3043 pp = pp_new; | |
| 3044 CHECK(stack_idx != 0, _("stack_idx should be 0")); | |
| 3045 ip->ip_index = 0; | |
| 3046 ++stack_idx; /* do block 1 again later */ | |
| 3047 } | |
| 3048 /* | |
| 3049 * move the pointers after the current one to the new block | |
| 3050 * If there are none, the new entry will be in the new block. | |
| 3051 */ | |
| 3052 total_moved = pp->pb_count - pb_idx - 1; | |
| 3053 if (total_moved) | |
| 3054 { | |
| 3055 mch_memmove(&pp_new->pb_pointer[0], | |
| 3056 &pp->pb_pointer[pb_idx + 1], | |
| 3057 (size_t)(total_moved) * sizeof(PTR_EN)); | |
| 3058 pp_new->pb_count = total_moved; | |
| 3059 pp->pb_count -= total_moved - 1; | |
| 3060 pp->pb_pointer[pb_idx + 1].pe_bnum = bnum_right; | |
| 3061 pp->pb_pointer[pb_idx + 1].pe_line_count = line_count_right; | |
| 3062 pp->pb_pointer[pb_idx + 1].pe_page_count = page_count_right; | |
| 3063 if (lnum_right) | |
| 3064 pp->pb_pointer[pb_idx + 1].pe_old_lnum = lnum_right; | |
| 3065 } | |
| 3066 else | |
| 3067 { | |
| 3068 pp_new->pb_count = 1; | |
| 3069 pp_new->pb_pointer[0].pe_bnum = bnum_right; | |
| 3070 pp_new->pb_pointer[0].pe_line_count = line_count_right; | |
| 3071 pp_new->pb_pointer[0].pe_page_count = page_count_right; | |
| 3072 pp_new->pb_pointer[0].pe_old_lnum = lnum_right; | |
| 3073 } | |
| 3074 pp->pb_pointer[pb_idx].pe_bnum = bnum_left; | |
| 3075 pp->pb_pointer[pb_idx].pe_line_count = line_count_left; | |
| 3076 pp->pb_pointer[pb_idx].pe_page_count = page_count_left; | |
| 3077 if (lnum_left) | |
| 3078 pp->pb_pointer[pb_idx].pe_old_lnum = lnum_left; | |
| 3079 lnum_left = 0; | |
| 3080 lnum_right = 0; | |
| 3081 | |
| 3082 /* | |
| 3083 * recompute line counts | |
| 3084 */ | |
| 3085 line_count_right = 0; | |
| 3086 for (i = 0; i < (int)pp_new->pb_count; ++i) | |
| 3087 line_count_right += pp_new->pb_pointer[i].pe_line_count; | |
| 3088 line_count_left = 0; | |
| 3089 for (i = 0; i < (int)pp->pb_count; ++i) | |
| 3090 line_count_left += pp->pb_pointer[i].pe_line_count; | |
| 3091 | |
| 3092 bnum_left = hp->bh_bnum; | |
| 3093 bnum_right = hp_new->bh_bnum; | |
| 3094 page_count_left = 1; | |
| 3095 page_count_right = 1; | |
| 3096 mf_put(mfp, hp, TRUE, FALSE); | |
| 3097 mf_put(mfp, hp_new, TRUE, FALSE); | |
| 3098 } | |
| 3099 } | |
| 3100 | |
| 3101 /* | |
| 3102 * Safety check: fallen out of for loop? | |
| 3103 */ | |
| 3104 if (stack_idx < 0) | |
| 3105 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3106 IEMSG(_("E318: Updated too many blocks?")); |
| 7 | 3107 buf->b_ml.ml_stack_top = 0; /* invalidate stack */ |
| 3108 } | |
| 3109 } | |
| 3110 | |
| 3111 #ifdef FEAT_BYTEOFF | |
| 3112 /* The line was inserted below 'lnum' */ | |
| 3113 ml_updatechunk(buf, lnum + 1, (long)len, ML_CHNK_ADDLINE); | |
| 3114 #endif | |
| 3115 #ifdef FEAT_NETBEANS_INTG | |
| 2210 | 3116 if (netbeans_active()) |
| 7 | 3117 { |
| 3118 if (STRLEN(line) > 0) | |
| 835 | 3119 netbeans_inserted(buf, lnum+1, (colnr_T)0, line, (int)STRLEN(line)); |
| 34 | 3120 netbeans_inserted(buf, lnum+1, (colnr_T)STRLEN(line), |
| 7 | 3121 (char_u *)"\n", 1); |
| 3122 } | |
| 3123 #endif | |
|
8493
caed4b2d305f
commit https://github.com/vim/vim/commit/509ce2a558e7e0c03242e32e844255af52f1c821
Christian Brabandt <cb@256bit.org>
parents:
8422
diff
changeset
|
3124 #ifdef FEAT_JOB_CHANNEL |
|
8422
5d2c84be23b5
commit https://github.com/vim/vim/commit/99ef06296f3c37490511c03786a2c8672e015c56
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3125 if (buf->b_write_to_channel) |
|
5d2c84be23b5
commit https://github.com/vim/vim/commit/99ef06296f3c37490511c03786a2c8672e015c56
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3126 channel_write_new_lines(buf); |
|
5d2c84be23b5
commit https://github.com/vim/vim/commit/99ef06296f3c37490511c03786a2c8672e015c56
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3127 #endif |
|
5d2c84be23b5
commit https://github.com/vim/vim/commit/99ef06296f3c37490511c03786a2c8672e015c56
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3128 |
| 7 | 3129 return OK; |
| 3130 } | |
| 3131 | |
| 3132 /* | |
| 625 | 3133 * Replace line lnum, with buffering, in current buffer. |
| 7 | 3134 * |
| 720 | 3135 * If "copy" is TRUE, make a copy of the line, otherwise the line has been |
| 7 | 3136 * copied to allocated memory already. |
| 3137 * | |
| 3138 * Check: The caller of this function should probably also call | |
| 3139 * changed_lines(), unless update_screen(NOT_VALID) is used. | |
| 3140 * | |
| 3141 * return FAIL for failure, OK otherwise | |
| 3142 */ | |
| 3143 int | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3144 ml_replace(linenr_T lnum, char_u *line, int copy) |
| 7 | 3145 { |
|
15138
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3146 colnr_T len = -1; |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3147 |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3148 if (line != NULL) |
|
15182
4b2de998ebd6
patch 8.1.0601: a few compiler warnings
Bram Moolenaar <Bram@vim.org>
parents:
15142
diff
changeset
|
3149 len = (colnr_T)STRLEN(line); |
|
15138
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3150 return ml_replace_len(lnum, line, len, copy); |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3151 } |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3152 |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3153 int |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3154 ml_replace_len(linenr_T lnum, char_u *line_arg, colnr_T len_arg, int copy) |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3155 { |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3156 char_u *line = line_arg; |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3157 colnr_T len = len_arg; |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3158 |
| 7 | 3159 if (line == NULL) /* just checking... */ |
| 3160 return FAIL; | |
| 3161 | |
| 3162 /* When starting up, we might still need to create the memfile */ | |
|
2394
a3aca345aafa
Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents:
2360
diff
changeset
|
3163 if (curbuf->b_ml.ml_mfp == NULL && open_buffer(FALSE, NULL, 0) == FAIL) |
| 7 | 3164 return FAIL; |
| 3165 | |
|
15138
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3166 if (copy && (line = vim_strnsave(line, len)) == NULL) /* allocate memory */ |
| 7 | 3167 return FAIL; |
| 3168 #ifdef FEAT_NETBEANS_INTG | |
| 2210 | 3169 if (netbeans_active()) |
| 7 | 3170 { |
| 3171 netbeans_removed(curbuf, lnum, 0, (long)STRLEN(ml_get(lnum))); | |
| 835 | 3172 netbeans_inserted(curbuf, lnum, 0, line, (int)STRLEN(line)); |
| 7 | 3173 } |
| 3174 #endif | |
|
15138
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3175 if (curbuf->b_ml.ml_line_lnum != lnum) |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3176 { |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3177 // another line is buffered, flush it |
|
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3178 ml_flush_line(curbuf); |
|
15142
7713ceb8c593
patch 8.1.0581: double free without the text properties feature
Bram Moolenaar <Bram@vim.org>
parents:
15138
diff
changeset
|
3179 curbuf->b_ml.ml_flags &= ~ML_LINE_DIRTY; |
|
15138
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3180 |
|
9df130fd5e0d
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|
3181 #ifdef FEAT_TEXT_PROP |
|
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|
3182 if (has_any_text_properties(curbuf)) |
|
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|
3183 // Need to fetch the old line to copy over any text properties. |
|
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|
3184 ml_get_buf(curbuf, lnum, TRUE); |
|
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|
3185 #endif |
|
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|
3186 } |
|
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|
3187 |
|
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|
3188 #ifdef FEAT_TEXT_PROP |
|
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|
3189 if (has_any_text_properties(curbuf)) |
|
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|
3190 { |
|
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|
3191 size_t oldtextlen = STRLEN(curbuf->b_ml.ml_line_ptr) + 1; |
|
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|
3192 |
|
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|
3193 if (oldtextlen < (size_t)curbuf->b_ml.ml_line_len) |
|
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|
3194 { |
|
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|
3195 char_u *newline; |
|
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|
3196 size_t textproplen = curbuf->b_ml.ml_line_len - oldtextlen; |
|
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|
3197 |
|
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|
3198 // Need to copy over text properties, stored after the text. |
|
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|
3199 newline = alloc(len + 1 + (int)textproplen); |
|
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|
3200 if (newline != NULL) |
|
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|
3201 { |
|
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|
3202 mch_memmove(newline, line, len + 1); |
|
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|
3203 mch_memmove(newline + len + 1, curbuf->b_ml.ml_line_ptr + oldtextlen, textproplen); |
|
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|
3204 vim_free(line); |
|
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|
3205 line = newline; |
|
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|
3206 len += (colnr_T)textproplen; |
|
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|
3207 } |
|
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|
3208 } |
|
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|
3209 } |
|
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|
3210 #endif |
|
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|
3211 |
|
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changeset
|
3212 if (curbuf->b_ml.ml_flags & ML_LINE_DIRTY) /* same line allocated */ |
| 7 | 3213 vim_free(curbuf->b_ml.ml_line_ptr); /* free it */ |
|
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|
3214 |
| 7 | 3215 curbuf->b_ml.ml_line_ptr = line; |
|
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|
3216 curbuf->b_ml.ml_line_len = len + 1; |
| 7 | 3217 curbuf->b_ml.ml_line_lnum = lnum; |
| 3218 curbuf->b_ml.ml_flags = (curbuf->b_ml.ml_flags | ML_LINE_DIRTY) & ~ML_EMPTY; | |
| 3219 | |
| 3220 return OK; | |
| 3221 } | |
| 3222 | |
| 3223 /* | |
|
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
3224 * Delete line "lnum" in the current buffer. |
|
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diff
changeset
|
3225 * When "message" is TRUE may give a "No lines in buffer" message. |
| 7 | 3226 * |
| 3227 * Check: The caller of this function should probably also call | |
| 3228 * deleted_lines() after this. | |
| 3229 * | |
| 3230 * return FAIL for failure, OK otherwise | |
| 3231 */ | |
| 3232 int | |
|
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diff
changeset
|
3233 ml_delete(linenr_T lnum, int message) |
| 7 | 3234 { |
| 3235 ml_flush_line(curbuf); | |
| 3236 return ml_delete_int(curbuf, lnum, message); | |
| 3237 } | |
| 3238 | |
| 3239 static int | |
|
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7803
diff
changeset
|
3240 ml_delete_int(buf_T *buf, linenr_T lnum, int message) |
| 7 | 3241 { |
| 3242 bhdr_T *hp; | |
| 3243 memfile_T *mfp; | |
| 3244 DATA_BL *dp; | |
| 3245 PTR_BL *pp; | |
| 3246 infoptr_T *ip; | |
| 3247 int count; /* number of entries in block */ | |
| 3248 int idx; | |
| 3249 int stack_idx; | |
| 3250 int text_start; | |
| 3251 int line_start; | |
| 3252 long line_size; | |
| 3253 int i; | |
| 3254 | |
| 3255 if (lnum < 1 || lnum > buf->b_ml.ml_line_count) | |
| 3256 return FAIL; | |
| 3257 | |
| 3258 if (lowest_marked && lowest_marked > lnum) | |
| 3259 lowest_marked--; | |
| 3260 | |
| 3261 /* | |
| 3262 * If the file becomes empty the last line is replaced by an empty line. | |
| 3263 */ | |
| 3264 if (buf->b_ml.ml_line_count == 1) /* file becomes empty */ | |
| 3265 { | |
| 3266 if (message | |
| 3267 #ifdef FEAT_NETBEANS_INTG | |
| 3268 && !netbeansSuppressNoLines | |
| 3269 #endif | |
| 3270 ) | |
| 680 | 3271 set_keep_msg((char_u *)_(no_lines_msg), 0); |
| 3272 | |
| 4352 | 3273 /* FEAT_BYTEOFF already handled in there, don't worry 'bout it below */ |
| 7 | 3274 i = ml_replace((linenr_T)1, (char_u *)"", TRUE); |
| 3275 buf->b_ml.ml_flags |= ML_EMPTY; | |
| 3276 | |
| 3277 return i; | |
| 3278 } | |
| 3279 | |
| 3280 /* | |
| 3281 * find the data block containing the line | |
| 3282 * This also fills the stack with the blocks from the root to the data block | |
| 3283 * This also releases any locked block. | |
| 3284 */ | |
| 3285 mfp = buf->b_ml.ml_mfp; | |
| 3286 if (mfp == NULL) | |
| 3287 return FAIL; | |
| 3288 | |
| 3289 if ((hp = ml_find_line(buf, lnum, ML_DELETE)) == NULL) | |
| 3290 return FAIL; | |
| 3291 | |
| 3292 dp = (DATA_BL *)(hp->bh_data); | |
| 3293 /* compute line count before the delete */ | |
| 3294 count = (long)(buf->b_ml.ml_locked_high) | |
| 3295 - (long)(buf->b_ml.ml_locked_low) + 2; | |
| 3296 idx = lnum - buf->b_ml.ml_locked_low; | |
| 3297 | |
| 3298 --buf->b_ml.ml_line_count; | |
| 3299 | |
| 3300 line_start = ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 3301 if (idx == 0) /* first line in block, text at the end */ | |
| 3302 line_size = dp->db_txt_end - line_start; | |
| 3303 else | |
| 3304 line_size = ((dp->db_index[idx - 1]) & DB_INDEX_MASK) - line_start; | |
| 3305 | |
| 3306 #ifdef FEAT_NETBEANS_INTG | |
| 2210 | 3307 if (netbeans_active()) |
| 34 | 3308 netbeans_removed(buf, lnum, 0, (long)line_size); |
| 7 | 3309 #endif |
| 3310 | |
| 3311 /* | |
| 3312 * special case: If there is only one line in the data block it becomes empty. | |
| 3313 * Then we have to remove the entry, pointing to this data block, from the | |
| 3314 * pointer block. If this pointer block also becomes empty, we go up another | |
| 3315 * block, and so on, up to the root if necessary. | |
| 3316 * The line counts in the pointer blocks have already been adjusted by | |
| 3317 * ml_find_line(). | |
| 3318 */ | |
| 3319 if (count == 1) | |
| 3320 { | |
| 3321 mf_free(mfp, hp); /* free the data block */ | |
| 3322 buf->b_ml.ml_locked = NULL; | |
| 3323 | |
| 2823 | 3324 for (stack_idx = buf->b_ml.ml_stack_top - 1; stack_idx >= 0; |
| 3325 --stack_idx) | |
| 7 | 3326 { |
| 3327 buf->b_ml.ml_stack_top = 0; /* stack is invalid when failing */ | |
| 3328 ip = &(buf->b_ml.ml_stack[stack_idx]); | |
| 3329 idx = ip->ip_index; | |
| 3330 if ((hp = mf_get(mfp, ip->ip_bnum, 1)) == NULL) | |
| 3331 return FAIL; | |
| 3332 pp = (PTR_BL *)(hp->bh_data); /* must be pointer block */ | |
| 3333 if (pp->pb_id != PTR_ID) | |
| 3334 { | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3335 IEMSG(_("E317: pointer block id wrong 4")); |
| 7 | 3336 mf_put(mfp, hp, FALSE, FALSE); |
| 3337 return FAIL; | |
| 3338 } | |
| 3339 count = --(pp->pb_count); | |
| 3340 if (count == 0) /* the pointer block becomes empty! */ | |
| 3341 mf_free(mfp, hp); | |
| 3342 else | |
| 3343 { | |
| 3344 if (count != idx) /* move entries after the deleted one */ | |
| 3345 mch_memmove(&pp->pb_pointer[idx], &pp->pb_pointer[idx + 1], | |
| 3346 (size_t)(count - idx) * sizeof(PTR_EN)); | |
| 3347 mf_put(mfp, hp, TRUE, FALSE); | |
| 3348 | |
| 3349 buf->b_ml.ml_stack_top = stack_idx; /* truncate stack */ | |
| 1167 | 3350 /* fix line count for rest of blocks in the stack */ |
| 3351 if (buf->b_ml.ml_locked_lineadd != 0) | |
| 7 | 3352 { |
| 3353 ml_lineadd(buf, buf->b_ml.ml_locked_lineadd); | |
| 3354 buf->b_ml.ml_stack[buf->b_ml.ml_stack_top].ip_high += | |
| 1167 | 3355 buf->b_ml.ml_locked_lineadd; |
| 7 | 3356 } |
| 3357 ++(buf->b_ml.ml_stack_top); | |
| 3358 | |
| 3359 break; | |
| 3360 } | |
| 3361 } | |
| 3362 CHECK(stack_idx < 0, _("deleted block 1?")); | |
| 3363 } | |
| 3364 else | |
| 3365 { | |
| 3366 /* | |
| 3367 * delete the text by moving the next lines forwards | |
| 3368 */ | |
| 3369 text_start = dp->db_txt_start; | |
| 3370 mch_memmove((char *)dp + text_start + line_size, | |
| 3371 (char *)dp + text_start, (size_t)(line_start - text_start)); | |
| 3372 | |
| 3373 /* | |
| 3374 * delete the index by moving the next indexes backwards | |
| 3375 * Adjust the indexes for the text movement. | |
| 3376 */ | |
| 3377 for (i = idx; i < count - 1; ++i) | |
| 3378 dp->db_index[i] = dp->db_index[i + 1] + line_size; | |
| 3379 | |
| 3380 dp->db_free += line_size + INDEX_SIZE; | |
| 3381 dp->db_txt_start += line_size; | |
| 3382 --(dp->db_line_count); | |
| 3383 | |
| 3384 /* | |
| 3385 * mark the block dirty and make sure it is in the file (for recovery) | |
| 3386 */ | |
| 3387 buf->b_ml.ml_flags |= (ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 3388 } | |
| 3389 | |
| 3390 #ifdef FEAT_BYTEOFF | |
| 3391 ml_updatechunk(buf, lnum, line_size, ML_CHNK_DELLINE); | |
| 3392 #endif | |
| 3393 return OK; | |
| 3394 } | |
| 3395 | |
| 3396 /* | |
| 3397 * set the B_MARKED flag for line 'lnum' | |
| 3398 */ | |
| 3399 void | |
|
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7803
diff
changeset
|
3400 ml_setmarked(linenr_T lnum) |
| 7 | 3401 { |
| 3402 bhdr_T *hp; | |
| 3403 DATA_BL *dp; | |
| 3404 /* invalid line number */ | |
| 3405 if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count | |
| 3406 || curbuf->b_ml.ml_mfp == NULL) | |
| 3407 return; /* give error message? */ | |
| 3408 | |
| 3409 if (lowest_marked == 0 || lowest_marked > lnum) | |
| 3410 lowest_marked = lnum; | |
| 3411 | |
| 3412 /* | |
| 3413 * find the data block containing the line | |
| 3414 * This also fills the stack with the blocks from the root to the data block | |
| 3415 * This also releases any locked block. | |
| 3416 */ | |
| 3417 if ((hp = ml_find_line(curbuf, lnum, ML_FIND)) == NULL) | |
| 3418 return; /* give error message? */ | |
| 3419 | |
| 3420 dp = (DATA_BL *)(hp->bh_data); | |
| 3421 dp->db_index[lnum - curbuf->b_ml.ml_locked_low] |= DB_MARKED; | |
| 3422 curbuf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 3423 } | |
| 3424 | |
| 3425 /* | |
| 3426 * find the first line with its B_MARKED flag set | |
| 3427 */ | |
| 3428 linenr_T | |
|
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diff
changeset
|
3429 ml_firstmarked(void) |
| 7 | 3430 { |
| 3431 bhdr_T *hp; | |
| 3432 DATA_BL *dp; | |
| 3433 linenr_T lnum; | |
| 3434 int i; | |
| 3435 | |
| 3436 if (curbuf->b_ml.ml_mfp == NULL) | |
| 3437 return (linenr_T) 0; | |
| 3438 | |
| 3439 /* | |
| 3440 * The search starts with lowest_marked line. This is the last line where | |
| 3441 * a mark was found, adjusted by inserting/deleting lines. | |
| 3442 */ | |
| 3443 for (lnum = lowest_marked; lnum <= curbuf->b_ml.ml_line_count; ) | |
| 3444 { | |
| 3445 /* | |
| 3446 * Find the data block containing the line. | |
| 3447 * This also fills the stack with the blocks from the root to the data | |
| 3448 * block This also releases any locked block. | |
| 3449 */ | |
| 3450 if ((hp = ml_find_line(curbuf, lnum, ML_FIND)) == NULL) | |
| 3451 return (linenr_T)0; /* give error message? */ | |
| 3452 | |
| 3453 dp = (DATA_BL *)(hp->bh_data); | |
| 3454 | |
| 3455 for (i = lnum - curbuf->b_ml.ml_locked_low; | |
| 3456 lnum <= curbuf->b_ml.ml_locked_high; ++i, ++lnum) | |
| 3457 if ((dp->db_index[i]) & DB_MARKED) | |
| 3458 { | |
| 3459 (dp->db_index[i]) &= DB_INDEX_MASK; | |
| 3460 curbuf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 3461 lowest_marked = lnum + 1; | |
| 3462 return lnum; | |
| 3463 } | |
| 3464 } | |
| 3465 | |
| 3466 return (linenr_T) 0; | |
| 3467 } | |
| 3468 | |
| 3469 /* | |
| 3470 * clear all DB_MARKED flags | |
| 3471 */ | |
| 3472 void | |
|
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diff
changeset
|
3473 ml_clearmarked(void) |
| 7 | 3474 { |
| 3475 bhdr_T *hp; | |
| 3476 DATA_BL *dp; | |
| 3477 linenr_T lnum; | |
| 3478 int i; | |
| 3479 | |
| 3480 if (curbuf->b_ml.ml_mfp == NULL) /* nothing to do */ | |
| 3481 return; | |
| 3482 | |
| 3483 /* | |
| 3484 * The search starts with line lowest_marked. | |
| 3485 */ | |
| 3486 for (lnum = lowest_marked; lnum <= curbuf->b_ml.ml_line_count; ) | |
| 3487 { | |
| 3488 /* | |
| 3489 * Find the data block containing the line. | |
| 3490 * This also fills the stack with the blocks from the root to the data | |
| 3491 * block and releases any locked block. | |
| 3492 */ | |
| 3493 if ((hp = ml_find_line(curbuf, lnum, ML_FIND)) == NULL) | |
| 3494 return; /* give error message? */ | |
| 3495 | |
| 3496 dp = (DATA_BL *)(hp->bh_data); | |
| 3497 | |
| 3498 for (i = lnum - curbuf->b_ml.ml_locked_low; | |
| 3499 lnum <= curbuf->b_ml.ml_locked_high; ++i, ++lnum) | |
| 3500 if ((dp->db_index[i]) & DB_MARKED) | |
| 3501 { | |
| 3502 (dp->db_index[i]) &= DB_INDEX_MASK; | |
| 3503 curbuf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 3504 } | |
| 3505 } | |
| 3506 | |
| 3507 lowest_marked = 0; | |
| 3508 return; | |
| 3509 } | |
| 3510 | |
| 3511 /* | |
| 3512 * flush ml_line if necessary | |
| 3513 */ | |
| 3514 static void | |
|
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diff
changeset
|
3515 ml_flush_line(buf_T *buf) |
| 7 | 3516 { |
| 3517 bhdr_T *hp; | |
| 3518 DATA_BL *dp; | |
| 3519 linenr_T lnum; | |
| 3520 char_u *new_line; | |
| 3521 char_u *old_line; | |
| 3522 colnr_T new_len; | |
| 3523 int old_len; | |
| 3524 int extra; | |
| 3525 int idx; | |
| 3526 int start; | |
| 3527 int count; | |
| 3528 int i; | |
|
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2003
diff
changeset
|
3529 static int entered = FALSE; |
| 7 | 3530 |
| 3531 if (buf->b_ml.ml_line_lnum == 0 || buf->b_ml.ml_mfp == NULL) | |
| 3532 return; /* nothing to do */ | |
| 3533 | |
| 3534 if (buf->b_ml.ml_flags & ML_LINE_DIRTY) | |
| 3535 { | |
|
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diff
changeset
|
3536 /* This code doesn't work recursively, but Netbeans may call back here |
|
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2003
diff
changeset
|
3537 * when obtaining the cursor position. */ |
|
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2003
diff
changeset
|
3538 if (entered) |
|
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updated for version 7.2.359
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parents:
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diff
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|
3539 return; |
|
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parents:
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diff
changeset
|
3540 entered = TRUE; |
|
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parents:
2003
diff
changeset
|
3541 |
| 7 | 3542 lnum = buf->b_ml.ml_line_lnum; |
| 3543 new_line = buf->b_ml.ml_line_ptr; | |
| 3544 | |
| 3545 hp = ml_find_line(buf, lnum, ML_FIND); | |
| 3546 if (hp == NULL) | |
|
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3547 IEMSGN(_("E320: Cannot find line %ld"), lnum); |
| 7 | 3548 else |
| 3549 { | |
| 3550 dp = (DATA_BL *)(hp->bh_data); | |
| 3551 idx = lnum - buf->b_ml.ml_locked_low; | |
| 3552 start = ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 3553 old_line = (char_u *)dp + start; | |
| 3554 if (idx == 0) /* line is last in block */ | |
| 3555 old_len = dp->db_txt_end - start; | |
| 3556 else /* text of previous line follows */ | |
| 3557 old_len = (dp->db_index[idx - 1] & DB_INDEX_MASK) - start; | |
|
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parents:
14980
diff
changeset
|
3558 new_len = buf->b_ml.ml_line_len; |
| 7 | 3559 extra = new_len - old_len; /* negative if lines gets smaller */ |
| 3560 | |
| 3561 /* | |
| 3562 * if new line fits in data block, replace directly | |
| 3563 */ | |
| 3564 if ((int)dp->db_free >= extra) | |
| 3565 { | |
| 3566 /* if the length changes and there are following lines */ | |
| 3567 count = buf->b_ml.ml_locked_high - buf->b_ml.ml_locked_low + 1; | |
| 3568 if (extra != 0 && idx < count - 1) | |
| 3569 { | |
| 3570 /* move text of following lines */ | |
| 3571 mch_memmove((char *)dp + dp->db_txt_start - extra, | |
| 3572 (char *)dp + dp->db_txt_start, | |
| 3573 (size_t)(start - dp->db_txt_start)); | |
| 3574 | |
| 3575 /* adjust pointers of this and following lines */ | |
| 3576 for (i = idx + 1; i < count; ++i) | |
| 3577 dp->db_index[i] -= extra; | |
| 3578 } | |
| 3579 dp->db_index[idx] -= extra; | |
| 3580 | |
| 3581 /* adjust free space */ | |
| 3582 dp->db_free -= extra; | |
| 3583 dp->db_txt_start -= extra; | |
| 3584 | |
| 3585 /* copy new line into the data block */ | |
| 3586 mch_memmove(old_line - extra, new_line, (size_t)new_len); | |
| 3587 buf->b_ml.ml_flags |= (ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 3588 #ifdef FEAT_BYTEOFF | |
| 3589 /* The else case is already covered by the insert and delete */ | |
| 3590 ml_updatechunk(buf, lnum, (long)extra, ML_CHNK_UPDLINE); | |
| 3591 #endif | |
| 3592 } | |
| 3593 else | |
| 3594 { | |
| 3595 /* | |
| 3596 * Cannot do it in one data block: Delete and append. | |
| 3597 * Append first, because ml_delete_int() cannot delete the | |
| 3598 * last line in a buffer, which causes trouble for a buffer | |
| 3599 * that has only one line. | |
| 3600 * Don't forget to copy the mark! | |
| 3601 */ | |
| 3602 /* How about handling errors??? */ | |
| 3603 (void)ml_append_int(buf, lnum, new_line, new_len, FALSE, | |
| 3604 (dp->db_index[idx] & DB_MARKED)); | |
| 3605 (void)ml_delete_int(buf, lnum, FALSE); | |
| 3606 } | |
| 3607 } | |
| 3608 vim_free(new_line); | |
|
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diff
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|
3609 |
|
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diff
changeset
|
3610 entered = FALSE; |
| 7 | 3611 } |
| 3612 | |
| 3613 buf->b_ml.ml_line_lnum = 0; | |
| 3614 } | |
| 3615 | |
| 3616 /* | |
| 3617 * create a new, empty, data block | |
| 3618 */ | |
| 3619 static bhdr_T * | |
|
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parents:
7803
diff
changeset
|
3620 ml_new_data(memfile_T *mfp, int negative, int page_count) |
| 7 | 3621 { |
| 3622 bhdr_T *hp; | |
| 3623 DATA_BL *dp; | |
| 3624 | |
| 3625 if ((hp = mf_new(mfp, negative, page_count)) == NULL) | |
| 3626 return NULL; | |
| 3627 | |
| 3628 dp = (DATA_BL *)(hp->bh_data); | |
| 3629 dp->db_id = DATA_ID; | |
| 3630 dp->db_txt_start = dp->db_txt_end = page_count * mfp->mf_page_size; | |
| 3631 dp->db_free = dp->db_txt_start - HEADER_SIZE; | |
| 3632 dp->db_line_count = 0; | |
| 3633 | |
| 3634 return hp; | |
| 3635 } | |
| 3636 | |
| 3637 /* | |
| 3638 * create a new, empty, pointer block | |
| 3639 */ | |
| 3640 static bhdr_T * | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3641 ml_new_ptr(memfile_T *mfp) |
| 7 | 3642 { |
| 3643 bhdr_T *hp; | |
| 3644 PTR_BL *pp; | |
| 3645 | |
| 3646 if ((hp = mf_new(mfp, FALSE, 1)) == NULL) | |
| 3647 return NULL; | |
| 3648 | |
| 3649 pp = (PTR_BL *)(hp->bh_data); | |
| 3650 pp->pb_id = PTR_ID; | |
| 3651 pp->pb_count = 0; | |
|
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Bram Moolenaar <bram@vim.org>
parents:
2221
diff
changeset
|
3652 pp->pb_count_max = (short_u)((mfp->mf_page_size - sizeof(PTR_BL)) |
|
6b4879aea261
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Bram Moolenaar <bram@vim.org>
parents:
2221
diff
changeset
|
3653 / sizeof(PTR_EN) + 1); |
| 7 | 3654 |
| 3655 return hp; | |
| 3656 } | |
| 3657 | |
| 3658 /* | |
| 3659 * lookup line 'lnum' in a memline | |
| 3660 * | |
| 3661 * action: if ML_DELETE or ML_INSERT the line count is updated while searching | |
| 3662 * if ML_FLUSH only flush a locked block | |
| 3663 * if ML_FIND just find the line | |
| 3664 * | |
| 3665 * If the block was found it is locked and put in ml_locked. | |
| 3666 * The stack is updated to lead to the locked block. The ip_high field in | |
| 3667 * the stack is updated to reflect the last line in the block AFTER the | |
| 3668 * insert or delete, also if the pointer block has not been updated yet. But | |
| 1167 | 3669 * if ml_locked != NULL ml_locked_lineadd must be added to ip_high. |
| 7 | 3670 * |
| 3671 * return: NULL for failure, pointer to block header otherwise | |
| 3672 */ | |
| 3673 static bhdr_T * | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3674 ml_find_line(buf_T *buf, linenr_T lnum, int action) |
| 7 | 3675 { |
| 3676 DATA_BL *dp; | |
| 3677 PTR_BL *pp; | |
| 3678 infoptr_T *ip; | |
| 3679 bhdr_T *hp; | |
| 3680 memfile_T *mfp; | |
| 3681 linenr_T t; | |
| 3682 blocknr_T bnum, bnum2; | |
| 3683 int dirty; | |
| 3684 linenr_T low, high; | |
| 3685 int top; | |
| 3686 int page_count; | |
| 3687 int idx; | |
| 3688 | |
| 3689 mfp = buf->b_ml.ml_mfp; | |
| 3690 | |
| 3691 /* | |
| 3692 * If there is a locked block check if the wanted line is in it. | |
| 3693 * If not, flush and release the locked block. | |
| 3694 * Don't do this for ML_INSERT_SAME, because the stack need to be updated. | |
| 3695 * Don't do this for ML_FLUSH, because we want to flush the locked block. | |
| 1066 | 3696 * Don't do this when 'swapfile' is reset, we want to load all the blocks. |
| 7 | 3697 */ |
| 3698 if (buf->b_ml.ml_locked) | |
| 3699 { | |
| 1066 | 3700 if (ML_SIMPLE(action) |
| 3701 && buf->b_ml.ml_locked_low <= lnum | |
| 3702 && buf->b_ml.ml_locked_high >= lnum | |
| 3703 && !mf_dont_release) | |
| 7 | 3704 { |
| 1066 | 3705 /* remember to update pointer blocks and stack later */ |
| 7 | 3706 if (action == ML_INSERT) |
| 3707 { | |
| 3708 ++(buf->b_ml.ml_locked_lineadd); | |
| 3709 ++(buf->b_ml.ml_locked_high); | |
| 3710 } | |
| 3711 else if (action == ML_DELETE) | |
| 3712 { | |
| 3713 --(buf->b_ml.ml_locked_lineadd); | |
| 3714 --(buf->b_ml.ml_locked_high); | |
| 3715 } | |
| 3716 return (buf->b_ml.ml_locked); | |
| 3717 } | |
| 3718 | |
| 3719 mf_put(mfp, buf->b_ml.ml_locked, buf->b_ml.ml_flags & ML_LOCKED_DIRTY, | |
| 3720 buf->b_ml.ml_flags & ML_LOCKED_POS); | |
| 3721 buf->b_ml.ml_locked = NULL; | |
| 3722 | |
| 1167 | 3723 /* |
| 3724 * If lines have been added or deleted in the locked block, need to | |
| 3725 * update the line count in pointer blocks. | |
| 3726 */ | |
| 3727 if (buf->b_ml.ml_locked_lineadd != 0) | |
| 7 | 3728 ml_lineadd(buf, buf->b_ml.ml_locked_lineadd); |
| 3729 } | |
| 3730 | |
| 3731 if (action == ML_FLUSH) /* nothing else to do */ | |
| 3732 return NULL; | |
| 3733 | |
| 3734 bnum = 1; /* start at the root of the tree */ | |
| 3735 page_count = 1; | |
| 3736 low = 1; | |
| 3737 high = buf->b_ml.ml_line_count; | |
| 3738 | |
| 3739 if (action == ML_FIND) /* first try stack entries */ | |
| 3740 { | |
| 3741 for (top = buf->b_ml.ml_stack_top - 1; top >= 0; --top) | |
| 3742 { | |
| 3743 ip = &(buf->b_ml.ml_stack[top]); | |
| 3744 if (ip->ip_low <= lnum && ip->ip_high >= lnum) | |
| 3745 { | |
| 3746 bnum = ip->ip_bnum; | |
| 3747 low = ip->ip_low; | |
| 3748 high = ip->ip_high; | |
| 3749 buf->b_ml.ml_stack_top = top; /* truncate stack at prev entry */ | |
| 3750 break; | |
| 3751 } | |
| 3752 } | |
| 3753 if (top < 0) | |
| 3754 buf->b_ml.ml_stack_top = 0; /* not found, start at the root */ | |
| 3755 } | |
| 3756 else /* ML_DELETE or ML_INSERT */ | |
| 3757 buf->b_ml.ml_stack_top = 0; /* start at the root */ | |
| 3758 | |
| 3759 /* | |
| 3760 * search downwards in the tree until a data block is found | |
| 3761 */ | |
| 3762 for (;;) | |
| 3763 { | |
| 3764 if ((hp = mf_get(mfp, bnum, page_count)) == NULL) | |
| 3765 goto error_noblock; | |
| 3766 | |
| 3767 /* | |
| 3768 * update high for insert/delete | |
| 3769 */ | |
| 3770 if (action == ML_INSERT) | |
| 3771 ++high; | |
| 3772 else if (action == ML_DELETE) | |
| 3773 --high; | |
| 3774 | |
| 3775 dp = (DATA_BL *)(hp->bh_data); | |
| 3776 if (dp->db_id == DATA_ID) /* data block */ | |
| 3777 { | |
| 3778 buf->b_ml.ml_locked = hp; | |
| 3779 buf->b_ml.ml_locked_low = low; | |
| 3780 buf->b_ml.ml_locked_high = high; | |
| 3781 buf->b_ml.ml_locked_lineadd = 0; | |
| 3782 buf->b_ml.ml_flags &= ~(ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 3783 return hp; | |
| 3784 } | |
| 3785 | |
| 3786 pp = (PTR_BL *)(dp); /* must be pointer block */ | |
| 3787 if (pp->pb_id != PTR_ID) | |
| 3788 { | |
|
10359
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Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3789 IEMSG(_("E317: pointer block id wrong")); |
| 7 | 3790 goto error_block; |
| 3791 } | |
| 3792 | |
| 3793 if ((top = ml_add_stack(buf)) < 0) /* add new entry to stack */ | |
| 3794 goto error_block; | |
| 3795 ip = &(buf->b_ml.ml_stack[top]); | |
| 3796 ip->ip_bnum = bnum; | |
| 3797 ip->ip_low = low; | |
| 3798 ip->ip_high = high; | |
| 3799 ip->ip_index = -1; /* index not known yet */ | |
| 3800 | |
| 3801 dirty = FALSE; | |
| 3802 for (idx = 0; idx < (int)pp->pb_count; ++idx) | |
| 3803 { | |
| 3804 t = pp->pb_pointer[idx].pe_line_count; | |
| 3805 CHECK(t == 0, _("pe_line_count is zero")); | |
| 3806 if ((low += t) > lnum) | |
| 3807 { | |
| 3808 ip->ip_index = idx; | |
| 3809 bnum = pp->pb_pointer[idx].pe_bnum; | |
| 3810 page_count = pp->pb_pointer[idx].pe_page_count; | |
| 3811 high = low - 1; | |
| 3812 low -= t; | |
| 3813 | |
| 3814 /* | |
| 3815 * a negative block number may have been changed | |
| 3816 */ | |
| 3817 if (bnum < 0) | |
| 3818 { | |
| 3819 bnum2 = mf_trans_del(mfp, bnum); | |
| 3820 if (bnum != bnum2) | |
| 3821 { | |
| 3822 bnum = bnum2; | |
| 3823 pp->pb_pointer[idx].pe_bnum = bnum; | |
| 3824 dirty = TRUE; | |
| 3825 } | |
| 3826 } | |
| 3827 | |
| 3828 break; | |
| 3829 } | |
| 3830 } | |
| 3831 if (idx >= (int)pp->pb_count) /* past the end: something wrong! */ | |
| 3832 { | |
| 3833 if (lnum > buf->b_ml.ml_line_count) | |
|
10359
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Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3834 IEMSGN(_("E322: line number out of range: %ld past the end"), |
| 7 | 3835 lnum - buf->b_ml.ml_line_count); |
| 3836 | |
| 3837 else | |
|
10359
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3838 IEMSGN(_("E323: line count wrong in block %ld"), bnum); |
| 7 | 3839 goto error_block; |
| 3840 } | |
| 3841 if (action == ML_DELETE) | |
| 3842 { | |
| 3843 pp->pb_pointer[idx].pe_line_count--; | |
| 3844 dirty = TRUE; | |
| 3845 } | |
| 3846 else if (action == ML_INSERT) | |
| 3847 { | |
| 3848 pp->pb_pointer[idx].pe_line_count++; | |
| 3849 dirty = TRUE; | |
| 3850 } | |
| 3851 mf_put(mfp, hp, dirty, FALSE); | |
| 3852 } | |
| 3853 | |
| 3854 error_block: | |
| 3855 mf_put(mfp, hp, FALSE, FALSE); | |
| 3856 error_noblock: | |
| 2267 | 3857 /* |
| 3858 * If action is ML_DELETE or ML_INSERT we have to correct the tree for | |
| 3859 * the incremented/decremented line counts, because there won't be a line | |
| 3860 * inserted/deleted after all. | |
| 3861 */ | |
| 7 | 3862 if (action == ML_DELETE) |
| 3863 ml_lineadd(buf, 1); | |
| 3864 else if (action == ML_INSERT) | |
| 3865 ml_lineadd(buf, -1); | |
| 3866 buf->b_ml.ml_stack_top = 0; | |
| 3867 return NULL; | |
| 3868 } | |
| 3869 | |
| 3870 /* | |
| 3871 * add an entry to the info pointer stack | |
| 3872 * | |
| 3873 * return -1 for failure, number of the new entry otherwise | |
| 3874 */ | |
| 3875 static int | |
|
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parents:
7803
diff
changeset
|
3876 ml_add_stack(buf_T *buf) |
| 7 | 3877 { |
| 3878 int top; | |
| 3879 infoptr_T *newstack; | |
| 3880 | |
| 3881 top = buf->b_ml.ml_stack_top; | |
| 3882 | |
| 2267 | 3883 /* may have to increase the stack size */ |
| 7 | 3884 if (top == buf->b_ml.ml_stack_size) |
| 3885 { | |
| 2267 | 3886 CHECK(top > 0, _("Stack size increases")); /* more than 5 levels??? */ |
| 7 | 3887 |
| 3888 newstack = (infoptr_T *)alloc((unsigned)sizeof(infoptr_T) * | |
| 3889 (buf->b_ml.ml_stack_size + STACK_INCR)); | |
| 3890 if (newstack == NULL) | |
| 3891 return -1; | |
| 6989 | 3892 if (top > 0) |
| 3893 mch_memmove(newstack, buf->b_ml.ml_stack, | |
| 1624 | 3894 (size_t)top * sizeof(infoptr_T)); |
| 7 | 3895 vim_free(buf->b_ml.ml_stack); |
| 3896 buf->b_ml.ml_stack = newstack; | |
| 3897 buf->b_ml.ml_stack_size += STACK_INCR; | |
| 3898 } | |
| 3899 | |
| 3900 buf->b_ml.ml_stack_top++; | |
| 3901 return top; | |
| 3902 } | |
| 3903 | |
| 3904 /* | |
| 3905 * Update the pointer blocks on the stack for inserted/deleted lines. | |
| 3906 * The stack itself is also updated. | |
| 3907 * | |
| 3908 * When a insert/delete line action fails, the line is not inserted/deleted, | |
| 3909 * but the pointer blocks have already been updated. That is fixed here by | |
| 3910 * walking through the stack. | |
| 3911 * | |
| 3912 * Count is the number of lines added, negative if lines have been deleted. | |
| 3913 */ | |
| 3914 static void | |
|
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parents:
7803
diff
changeset
|
3915 ml_lineadd(buf_T *buf, int count) |
| 7 | 3916 { |
| 3917 int idx; | |
| 3918 infoptr_T *ip; | |
| 3919 PTR_BL *pp; | |
| 3920 memfile_T *mfp = buf->b_ml.ml_mfp; | |
| 3921 bhdr_T *hp; | |
| 3922 | |
| 3923 for (idx = buf->b_ml.ml_stack_top - 1; idx >= 0; --idx) | |
| 3924 { | |
| 3925 ip = &(buf->b_ml.ml_stack[idx]); | |
| 3926 if ((hp = mf_get(mfp, ip->ip_bnum, 1)) == NULL) | |
| 3927 break; | |
| 3928 pp = (PTR_BL *)(hp->bh_data); /* must be pointer block */ | |
| 3929 if (pp->pb_id != PTR_ID) | |
| 3930 { | |
| 3931 mf_put(mfp, hp, FALSE, FALSE); | |
|
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parents:
10042
diff
changeset
|
3932 IEMSG(_("E317: pointer block id wrong 2")); |
| 7 | 3933 break; |
| 3934 } | |
| 3935 pp->pb_pointer[ip->ip_index].pe_line_count += count; | |
| 3936 ip->ip_high += count; | |
| 3937 mf_put(mfp, hp, TRUE, FALSE); | |
| 3938 } | |
| 3939 } | |
| 3940 | |
|
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diff
changeset
|
3941 #if defined(HAVE_READLINK) || defined(PROTO) |
| 594 | 3942 /* |
| 3943 * Resolve a symlink in the last component of a file name. | |
| 3944 * Note that f_resolve() does it for every part of the path, we don't do that | |
| 3945 * here. | |
| 3946 * If it worked returns OK and the resolved link in "buf[MAXPATHL]". | |
| 3947 * Otherwise returns FAIL. | |
| 3948 */ | |
|
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diff
changeset
|
3949 int |
|
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diff
changeset
|
3950 resolve_symlink(char_u *fname, char_u *buf) |
| 594 | 3951 { |
| 3952 char_u tmp[MAXPATHL]; | |
| 3953 int ret; | |
| 3954 int depth = 0; | |
| 3955 | |
| 3956 if (fname == NULL) | |
| 3957 return FAIL; | |
| 3958 | |
| 3959 /* Put the result so far in tmp[], starting with the original name. */ | |
| 3960 vim_strncpy(tmp, fname, MAXPATHL - 1); | |
| 3961 | |
| 3962 for (;;) | |
| 3963 { | |
| 3964 /* Limit symlink depth to 100, catch recursive loops. */ | |
| 3965 if (++depth == 100) | |
| 3966 { | |
| 3967 EMSG2(_("E773: Symlink loop for \"%s\""), fname); | |
| 3968 return FAIL; | |
| 3969 } | |
| 3970 | |
| 3971 ret = readlink((char *)tmp, (char *)buf, MAXPATHL - 1); | |
| 3972 if (ret <= 0) | |
| 3973 { | |
| 619 | 3974 if (errno == EINVAL || errno == ENOENT) |
| 594 | 3975 { |
| 619 | 3976 /* Found non-symlink or not existing file, stop here. |
| 1855 | 3977 * When at the first level use the unmodified name, skip the |
| 594 | 3978 * call to vim_FullName(). */ |
| 3979 if (depth == 1) | |
| 3980 return FAIL; | |
| 3981 | |
| 3982 /* Use the resolved name in tmp[]. */ | |
| 3983 break; | |
| 3984 } | |
| 3985 | |
| 3986 /* There must be some error reading links, use original name. */ | |
| 3987 return FAIL; | |
| 3988 } | |
| 3989 buf[ret] = NUL; | |
| 3990 | |
| 3991 /* | |
| 3992 * Check whether the symlink is relative or absolute. | |
| 3993 * If it's relative, build a new path based on the directory | |
| 3994 * portion of the filename (if any) and the path the symlink | |
| 3995 * points to. | |
| 3996 */ | |
| 3997 if (mch_isFullName(buf)) | |
| 3998 STRCPY(tmp, buf); | |
| 3999 else | |
| 4000 { | |
| 4001 char_u *tail; | |
| 4002 | |
| 4003 tail = gettail(tmp); | |
| 4004 if (STRLEN(tail) + STRLEN(buf) >= MAXPATHL) | |
| 4005 return FAIL; | |
| 4006 STRCPY(tail, buf); | |
| 4007 } | |
| 4008 } | |
| 4009 | |
| 4010 /* | |
| 4011 * Try to resolve the full name of the file so that the swapfile name will | |
| 4012 * be consistent even when opening a relative symlink from different | |
| 4013 * working directories. | |
| 4014 */ | |
| 4015 return vim_FullName(tmp, buf, MAXPATHL, TRUE); | |
| 4016 } | |
| 4017 #endif | |
| 4018 | |
| 7 | 4019 /* |
| 460 | 4020 * Make swap file name out of the file name and a directory name. |
| 4021 * Returns pointer to allocated memory or NULL. | |
| 7 | 4022 */ |
| 460 | 4023 char_u * |
|
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diff
changeset
|
4024 makeswapname( |
|
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diff
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|
4025 char_u *fname, |
|
41789f16d6b2
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diff
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|
4026 char_u *ffname UNUSED, |
|
41789f16d6b2
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diff
changeset
|
4027 buf_T *buf, |
|
41789f16d6b2
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parents:
7803
diff
changeset
|
4028 char_u *dir_name) |
| 7 | 4029 { |
| 4030 char_u *r, *s; | |
|
2145
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diff
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|
4031 char_u *fname_res = fname; |
| 594 | 4032 #ifdef HAVE_READLINK |
| 4033 char_u fname_buf[MAXPATHL]; | |
| 4034 #endif | |
| 7 | 4035 |
| 4036 #if defined(UNIX) || defined(WIN3264) /* Need _very_ long file names */ | |
|
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patch 8.0.0387: compiler warnings
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10952
diff
changeset
|
4037 int len = (int)STRLEN(dir_name); |
|
10896
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patch 8.0.0337: invalid memory access in :recover command
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10889
diff
changeset
|
4038 |
|
d513b653f5d0
patch 8.0.0337: invalid memory access in :recover command
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diff
changeset
|
4039 s = dir_name + len; |
|
d513b653f5d0
patch 8.0.0337: invalid memory access in :recover command
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parents:
10889
diff
changeset
|
4040 if (after_pathsep(dir_name, s) && len > 1 && s[-1] == s[-2]) |
| 7 | 4041 { /* Ends with '//', Use Full path */ |
| 4042 r = NULL; | |
| 460 | 4043 if ((s = make_percent_swname(dir_name, fname)) != NULL) |
| 7 | 4044 { |
| 4045 r = modname(s, (char_u *)".swp", FALSE); | |
| 4046 vim_free(s); | |
| 4047 } | |
| 4048 return r; | |
| 4049 } | |
| 4050 #endif | |
| 4051 | |
| 594 | 4052 #ifdef HAVE_READLINK |
| 4053 /* Expand symlink in the file name, so that we put the swap file with the | |
| 4054 * actual file instead of with the symlink. */ | |
| 4055 if (resolve_symlink(fname, fname_buf) == OK) | |
| 4056 fname_res = fname_buf; | |
| 4057 #endif | |
| 4058 | |
| 7 | 4059 r = buf_modname( |
| 4060 (buf->b_p_sn || buf->b_shortname), | |
| 594 | 4061 fname_res, |
| 7 | 4062 (char_u *) |
| 2823 | 4063 #if defined(VMS) |
| 7 | 4064 "_swp", |
| 4065 #else | |
| 4066 ".swp", | |
| 4067 #endif | |
| 4068 /* Prepend a '.' to the swap file name for the current directory. */ | |
|
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parents:
7961
diff
changeset
|
4069 dir_name[0] == '.' && dir_name[1] == NUL); |
| 7 | 4070 if (r == NULL) /* out of memory */ |
| 4071 return NULL; | |
| 4072 | |
| 4073 s = get_file_in_dir(r, dir_name); | |
| 4074 vim_free(r); | |
| 4075 return s; | |
| 4076 } | |
| 4077 | |
| 4078 /* | |
| 4079 * Get file name to use for swap file or backup file. | |
| 4080 * Use the name of the edited file "fname" and an entry in the 'dir' or 'bdir' | |
| 4081 * option "dname". | |
| 4082 * - If "dname" is ".", return "fname" (swap file in dir of file). | |
| 4083 * - If "dname" starts with "./", insert "dname" in "fname" (swap file | |
| 4084 * relative to dir of file). | |
| 4085 * - Otherwise, prepend "dname" to the tail of "fname" (swap file in specific | |
| 4086 * dir). | |
| 4087 * | |
| 4088 * The return value is an allocated string and can be NULL. | |
| 4089 */ | |
| 4090 char_u * | |
|
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7803
diff
changeset
|
4091 get_file_in_dir( |
|
41789f16d6b2
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7803
diff
changeset
|
4092 char_u *fname, |
|
41789f16d6b2
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parents:
7803
diff
changeset
|
4093 char_u *dname) /* don't use "dirname", it is a global for Alpha */ |
| 7 | 4094 { |
| 4095 char_u *t; | |
| 4096 char_u *tail; | |
| 4097 char_u *retval; | |
| 4098 int save_char; | |
| 4099 | |
| 4100 tail = gettail(fname); | |
| 4101 | |
| 4102 if (dname[0] == '.' && dname[1] == NUL) | |
| 4103 retval = vim_strsave(fname); | |
| 4104 else if (dname[0] == '.' && vim_ispathsep(dname[1])) | |
| 4105 { | |
| 4106 if (tail == fname) /* no path before file name */ | |
| 4107 retval = concat_fnames(dname + 2, tail, TRUE); | |
| 4108 else | |
| 4109 { | |
| 4110 save_char = *tail; | |
| 4111 *tail = NUL; | |
| 4112 t = concat_fnames(fname, dname + 2, TRUE); | |
| 4113 *tail = save_char; | |
| 4114 if (t == NULL) /* out of memory */ | |
| 4115 retval = NULL; | |
| 4116 else | |
| 4117 { | |
| 4118 retval = concat_fnames(t, tail, TRUE); | |
| 4119 vim_free(t); | |
| 4120 } | |
| 4121 } | |
| 4122 } | |
| 4123 else | |
| 4124 retval = concat_fnames(dname, tail, TRUE); | |
| 4125 | |
| 5432 | 4126 #ifdef WIN3264 |
| 4127 if (retval != NULL) | |
|
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diff
changeset
|
4128 for (t = gettail(retval); *t != NUL; MB_PTR_ADV(t)) |
| 5432 | 4129 if (*t == ':') |
| 4130 *t = '%'; | |
| 4131 #endif | |
| 4132 | |
| 7 | 4133 return retval; |
| 4134 } | |
| 4135 | |
| 580 | 4136 /* |
| 4137 * Print the ATTENTION message: info about an existing swap file. | |
| 4138 */ | |
| 4139 static void | |
|
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diff
changeset
|
4140 attention_message( |
|
41789f16d6b2
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7803
diff
changeset
|
4141 buf_T *buf, /* buffer being edited */ |
|
41789f16d6b2
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diff
changeset
|
4142 char_u *fname) /* swap file name */ |
| 580 | 4143 { |
|
9387
f094d4085014
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Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4144 stat_T st; |
| 580 | 4145 time_t x, sx; |
| 1001 | 4146 char *p; |
| 580 | 4147 |
| 4148 ++no_wait_return; | |
| 4149 (void)EMSG(_("E325: ATTENTION")); | |
| 4150 MSG_PUTS(_("\nFound a swap file by the name \"")); | |
| 4151 msg_home_replace(fname); | |
| 4152 MSG_PUTS("\"\n"); | |
| 4153 sx = swapfile_info(fname); | |
| 4154 MSG_PUTS(_("While opening file \"")); | |
| 4155 msg_outtrans(buf->b_fname); | |
| 4156 MSG_PUTS("\"\n"); | |
|
14923
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Bram Moolenaar <Bram@vim.org>
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14909
diff
changeset
|
4157 if (mch_stat((char *)buf->b_fname, &st) == -1) |
|
95400980f7c9
patch 8.1.0473: user doesn't notice file does not exist when swap file does
Bram Moolenaar <Bram@vim.org>
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14909
diff
changeset
|
4158 { |
|
95400980f7c9
patch 8.1.0473: user doesn't notice file does not exist when swap file does
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diff
changeset
|
4159 MSG_PUTS(_(" CANNOT BE FOUND")); |
|
95400980f7c9
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Bram Moolenaar <Bram@vim.org>
parents:
14909
diff
changeset
|
4160 } |
|
95400980f7c9
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Bram Moolenaar <Bram@vim.org>
parents:
14909
diff
changeset
|
4161 else |
| 580 | 4162 { |
| 4163 MSG_PUTS(_(" dated: ")); | |
| 4164 x = st.st_mtime; /* Manx C can't do &st.st_mtime */ | |
| 1001 | 4165 p = ctime(&x); /* includes '\n' */ |
| 4166 if (p == NULL) | |
| 4167 MSG_PUTS("(invalid)\n"); | |
| 4168 else | |
| 4169 MSG_PUTS(p); | |
| 580 | 4170 if (sx != 0 && x > sx) |
| 4171 MSG_PUTS(_(" NEWER than swap file!\n")); | |
| 4172 } | |
| 4173 /* Some of these messages are long to allow translation to | |
| 4174 * other languages. */ | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7827
diff
changeset
|
4175 MSG_PUTS(_("\n(1) Another program may be editing the same file. If this is the case,\n be careful not to end up with two different instances of the same\n file when making changes. Quit, or continue with caution.\n")); |
| 2703 | 4176 MSG_PUTS(_("(2) An edit session for this file crashed.\n")); |
| 580 | 4177 MSG_PUTS(_(" If this is the case, use \":recover\" or \"vim -r ")); |
| 4178 msg_outtrans(buf->b_fname); | |
| 4179 MSG_PUTS(_("\"\n to recover the changes (see \":help recovery\").\n")); | |
| 4180 MSG_PUTS(_(" If you did this already, delete the swap file \"")); | |
| 4181 msg_outtrans(fname); | |
| 4182 MSG_PUTS(_("\"\n to avoid this message.\n")); | |
| 4183 cmdline_row = msg_row; | |
| 4184 --no_wait_return; | |
| 4185 } | |
| 4186 | |
|
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13244
diff
changeset
|
4187 #if defined(FEAT_EVAL) |
| 580 | 4188 /* |
| 4189 * Trigger the SwapExists autocommands. | |
| 4190 * Returns a value for equivalent to do_dialog() (see below): | |
| 4191 * 0: still need to ask for a choice | |
| 4192 * 1: open read-only | |
| 4193 * 2: edit anyway | |
| 4194 * 3: recover | |
| 4195 * 4: delete it | |
| 4196 * 5: quit | |
| 4197 * 6: abort | |
| 4198 */ | |
| 4199 static int | |
|
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7803
diff
changeset
|
4200 do_swapexists(buf_T *buf, char_u *fname) |
| 580 | 4201 { |
| 4202 set_vim_var_string(VV_SWAPNAME, fname, -1); | |
| 4203 set_vim_var_string(VV_SWAPCHOICE, NULL, -1); | |
| 4204 | |
| 4205 /* Trigger SwapExists autocommands with <afile> set to the file being | |
| 1856 | 4206 * edited. Disallow changing directory here. */ |
| 4207 ++allbuf_lock; | |
| 580 | 4208 apply_autocmds(EVENT_SWAPEXISTS, buf->b_fname, NULL, FALSE, NULL); |
| 1856 | 4209 --allbuf_lock; |
| 580 | 4210 |
| 4211 set_vim_var_string(VV_SWAPNAME, NULL, -1); | |
| 4212 | |
| 4213 switch (*get_vim_var_str(VV_SWAPCHOICE)) | |
| 4214 { | |
| 4215 case 'o': return 1; | |
| 4216 case 'e': return 2; | |
| 4217 case 'r': return 3; | |
| 4218 case 'd': return 4; | |
| 4219 case 'q': return 5; | |
| 4220 case 'a': return 6; | |
| 4221 } | |
| 4222 | |
| 4223 return 0; | |
| 4224 } | |
| 4225 #endif | |
| 4226 | |
| 7 | 4227 /* |
| 4228 * Find out what name to use for the swap file for buffer 'buf'. | |
| 4229 * | |
| 4230 * Several names are tried to find one that does not exist | |
| 460 | 4231 * Returns the name in allocated memory or NULL. |
| 3158 | 4232 * When out of memory "dirp" is set to NULL. |
| 7 | 4233 * |
| 4234 * Note: If BASENAMELEN is not correct, you will get error messages for | |
|
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changeset
|
4235 * not being able to open the swap or undo file |
| 1856 | 4236 * Note: May trigger SwapExists autocmd, pointers may change! |
| 7 | 4237 */ |
| 4238 static char_u * | |
|
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|
4239 findswapname( |
|
41789f16d6b2
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7803
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|
4240 buf_T *buf, |
|
41789f16d6b2
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7803
diff
changeset
|
4241 char_u **dirp, /* pointer to list of directories */ |
|
41789f16d6b2
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7803
diff
changeset
|
4242 char_u *old_fname) /* don't give warning for this file name */ |
| 7 | 4243 { |
| 4244 char_u *fname; | |
| 4245 int n; | |
| 4246 char_u *dir_name; | |
| 4247 #ifdef AMIGA | |
| 4248 BPTR fh; | |
| 4249 #endif | |
| 4250 int r; | |
| 5432 | 4251 char_u *buf_fname = buf->b_fname; |
| 7 | 4252 |
|
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7961
diff
changeset
|
4253 #if !defined(UNIX) |
| 7 | 4254 # define CREATE_DUMMY_FILE |
| 4255 FILE *dummyfd = NULL; | |
| 4256 | |
| 5432 | 4257 # ifdef WIN3264 |
| 4258 if (buf_fname != NULL && !mch_isFullName(buf_fname) | |
| 4259 && vim_strchr(gettail(buf_fname), ':')) | |
| 4260 { | |
| 4261 char_u *t; | |
| 4262 | |
| 4263 buf_fname = vim_strsave(buf_fname); | |
| 4264 if (buf_fname == NULL) | |
| 4265 buf_fname = buf->b_fname; | |
| 4266 else | |
|
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|
4267 for (t = gettail(buf_fname); *t != NUL; MB_PTR_ADV(t)) |
| 5432 | 4268 if (*t == ':') |
| 4269 *t = '%'; | |
| 4270 } | |
| 4271 # endif | |
| 4272 | |
|
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|
4273 /* |
|
f8222d1f9a73
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4274 * If we start editing a new file, e.g. "test.doc", which resides on an |
|
f8222d1f9a73
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Bram Moolenaar <bram@vim.org>
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changeset
|
4275 * MSDOS compatible filesystem, it is possible that the file |
|
f8222d1f9a73
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Bram Moolenaar <bram@vim.org>
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changeset
|
4276 * "test.doc.swp" which we create will be exactly the same file. To avoid |
|
f8222d1f9a73
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parents:
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|
4277 * this problem we temporarily create "test.doc". Don't do this when the |
|
f8222d1f9a73
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Bram Moolenaar <bram@vim.org>
parents:
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changeset
|
4278 * check below for a 8.3 file name is used. |
|
f8222d1f9a73
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parents:
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changeset
|
4279 */ |
| 5432 | 4280 if (!(buf->b_p_sn || buf->b_shortname) && buf_fname != NULL |
| 4281 && mch_getperm(buf_fname) < 0) | |
| 4282 dummyfd = mch_fopen((char *)buf_fname, "w"); | |
| 7 | 4283 #endif |
| 4284 | |
|
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|
4285 /* |
|
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diff
changeset
|
4286 * Isolate a directory name from *dirp and put it in dir_name. |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4287 * First allocate some memory to put the directory name in. |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4288 */ |
| 7 | 4289 dir_name = alloc((unsigned)STRLEN(*dirp) + 1); |
| 3158 | 4290 if (dir_name == NULL) |
| 4291 *dirp = NULL; | |
| 4292 else | |
| 7 | 4293 (void)copy_option_part(dirp, dir_name, 31000, ","); |
| 4294 | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4295 /* |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4296 * we try different names until we find one that does not exist yet |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4297 */ |
| 7 | 4298 if (dir_name == NULL) /* out of memory */ |
| 4299 fname = NULL; | |
| 4300 else | |
| 5432 | 4301 fname = makeswapname(buf_fname, buf->b_ffname, buf, dir_name); |
| 7 | 4302 |
| 4303 for (;;) | |
| 4304 { | |
| 4305 if (fname == NULL) /* must be out of memory */ | |
| 4306 break; | |
| 4307 if ((n = (int)STRLEN(fname)) == 0) /* safety check */ | |
| 4308 { | |
|
13244
ac42c4b11dbc
patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12975
diff
changeset
|
4309 VIM_CLEAR(fname); |
| 7 | 4310 break; |
| 4311 } | |
|
8212
05b88224cea1
commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
4312 #if defined(UNIX) |
| 7 | 4313 /* |
| 4314 * Some systems have a MS-DOS compatible filesystem that use 8.3 character | |
| 4315 * file names. If this is the first try and the swap file name does not fit in | |
| 4316 * 8.3, detect if this is the case, set shortname and try again. | |
| 4317 */ | |
| 4318 if (fname[n - 2] == 'w' && fname[n - 1] == 'p' | |
| 4319 && !(buf->b_p_sn || buf->b_shortname)) | |
| 4320 { | |
| 4321 char_u *tail; | |
| 4322 char_u *fname2; | |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4323 stat_T s1, s2; |
| 7 | 4324 int f1, f2; |
| 4325 int created1 = FALSE, created2 = FALSE; | |
| 4326 int same = FALSE; | |
| 4327 | |
| 4328 /* | |
| 4329 * Check if swapfile name does not fit in 8.3: | |
| 4330 * It either contains two dots, is longer than 8 chars, or starts | |
| 4331 * with a dot. | |
| 4332 */ | |
| 5432 | 4333 tail = gettail(buf_fname); |
| 7 | 4334 if ( vim_strchr(tail, '.') != NULL |
| 4335 || STRLEN(tail) > (size_t)8 | |
| 4336 || *gettail(fname) == '.') | |
| 4337 { | |
| 4338 fname2 = alloc(n + 2); | |
| 4339 if (fname2 != NULL) | |
| 4340 { | |
| 4341 STRCPY(fname2, fname); | |
| 4342 /* if fname == "xx.xx.swp", fname2 = "xx.xx.swx" | |
| 4343 * if fname == ".xx.swp", fname2 = ".xx.swpx" | |
| 4344 * if fname == "123456789.swp", fname2 = "12345678x.swp" | |
| 4345 */ | |
| 4346 if (vim_strchr(tail, '.') != NULL) | |
| 4347 fname2[n - 1] = 'x'; | |
| 4348 else if (*gettail(fname) == '.') | |
| 4349 { | |
| 4350 fname2[n] = 'x'; | |
| 4351 fname2[n + 1] = NUL; | |
| 4352 } | |
| 4353 else | |
| 4354 fname2[n - 5] += 1; | |
| 4355 /* | |
| 4356 * may need to create the files to be able to use mch_stat() | |
| 4357 */ | |
| 4358 f1 = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
| 4359 if (f1 < 0) | |
| 4360 { | |
| 4361 f1 = mch_open_rw((char *)fname, | |
| 4362 O_RDWR|O_CREAT|O_EXCL|O_EXTRA); | |
| 4363 created1 = TRUE; | |
| 4364 } | |
| 4365 if (f1 >= 0) | |
| 4366 { | |
| 4367 f2 = mch_open((char *)fname2, O_RDONLY | O_EXTRA, 0); | |
| 4368 if (f2 < 0) | |
| 4369 { | |
| 4370 f2 = mch_open_rw((char *)fname2, | |
| 4371 O_RDWR|O_CREAT|O_EXCL|O_EXTRA); | |
| 4372 created2 = TRUE; | |
| 4373 } | |
| 4374 if (f2 >= 0) | |
| 4375 { | |
| 4376 /* | |
| 4377 * Both files exist now. If mch_stat() returns the | |
| 4378 * same device and inode they are the same file. | |
| 4379 */ | |
| 4380 if (mch_fstat(f1, &s1) != -1 | |
| 4381 && mch_fstat(f2, &s2) != -1 | |
| 4382 && s1.st_dev == s2.st_dev | |
| 4383 && s1.st_ino == s2.st_ino) | |
| 4384 same = TRUE; | |
| 4385 close(f2); | |
| 4386 if (created2) | |
| 4387 mch_remove(fname2); | |
| 4388 } | |
| 4389 close(f1); | |
| 4390 if (created1) | |
| 4391 mch_remove(fname); | |
| 4392 } | |
| 4393 vim_free(fname2); | |
| 4394 if (same) | |
| 4395 { | |
| 4396 buf->b_shortname = TRUE; | |
| 4397 vim_free(fname); | |
| 5432 | 4398 fname = makeswapname(buf_fname, buf->b_ffname, |
| 460 | 4399 buf, dir_name); |
| 7 | 4400 continue; /* try again with b_shortname set */ |
| 4401 } | |
| 4402 } | |
| 4403 } | |
| 4404 } | |
| 4405 #endif | |
| 4406 /* | |
| 4407 * check if the swapfile already exists | |
| 4408 */ | |
| 4409 if (mch_getperm(fname) < 0) /* it does not exist */ | |
| 4410 { | |
| 4411 #ifdef HAVE_LSTAT | |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4412 stat_T sb; |
| 7 | 4413 |
| 4414 /* | |
| 4415 * Extra security check: When a swap file is a symbolic link, this | |
| 4416 * is most likely a symlink attack. | |
| 4417 */ | |
| 4418 if (mch_lstat((char *)fname, &sb) < 0) | |
| 4419 #else | |
| 4420 # ifdef AMIGA | |
| 4421 fh = Open((UBYTE *)fname, (long)MODE_NEWFILE); | |
| 4422 /* | |
| 4423 * on the Amiga mch_getperm() will return -1 when the file exists | |
| 4424 * but is being used by another program. This happens if you edit | |
| 4425 * a file twice. | |
| 4426 */ | |
| 4427 if (fh != (BPTR)NULL) /* can open file, OK */ | |
| 4428 { | |
| 4429 Close(fh); | |
| 4430 mch_remove(fname); | |
| 4431 break; | |
| 4432 } | |
| 4433 if (IoErr() != ERROR_OBJECT_IN_USE | |
| 4434 && IoErr() != ERROR_OBJECT_EXISTS) | |
| 4435 # endif | |
| 4436 #endif | |
| 4437 break; | |
| 4438 } | |
| 4439 | |
| 4440 /* | |
| 4441 * A file name equal to old_fname is OK to use. | |
| 4442 */ | |
| 4443 if (old_fname != NULL && fnamecmp(fname, old_fname) == 0) | |
| 4444 break; | |
| 4445 | |
| 4446 /* | |
| 4447 * get here when file already exists | |
| 4448 */ | |
| 4449 if (fname[n - 2] == 'w' && fname[n - 1] == 'p') /* first try */ | |
| 4450 { | |
| 4451 /* | |
| 4452 * on MS-DOS compatible filesystems (e.g. messydos) file.doc.swp | |
| 4453 * and file.doc are the same file. To guess if this problem is | |
| 4454 * present try if file.doc.swx exists. If it does, we set | |
| 4455 * buf->b_shortname and try file_doc.swp (dots replaced by | |
| 4456 * underscores for this file), and try again. If it doesn't we | |
| 4457 * assume that "file.doc.swp" already exists. | |
| 4458 */ | |
| 4459 if (!(buf->b_p_sn || buf->b_shortname)) /* not tried yet */ | |
| 4460 { | |
| 4461 fname[n - 1] = 'x'; | |
| 4462 r = mch_getperm(fname); /* try "file.swx" */ | |
| 4463 fname[n - 1] = 'p'; | |
| 4464 if (r >= 0) /* "file.swx" seems to exist */ | |
| 4465 { | |
| 4466 buf->b_shortname = TRUE; | |
| 4467 vim_free(fname); | |
| 5432 | 4468 fname = makeswapname(buf_fname, buf->b_ffname, |
| 460 | 4469 buf, dir_name); |
| 7 | 4470 continue; /* try again with '.' replaced with '_' */ |
| 4471 } | |
| 4472 } | |
| 4473 /* | |
| 4474 * If we get here the ".swp" file really exists. | |
| 4475 * Give an error message, unless recovering, no file name, we are | |
| 4476 * viewing a help file or when the path of the file is different | |
| 4477 * (happens when all .swp files are in one directory). | |
| 4478 */ | |
| 5432 | 4479 if (!recoverymode && buf_fname != NULL |
| 43 | 4480 && !buf->b_help && !(buf->b_flags & BF_DUMMY)) |
| 7 | 4481 { |
| 4482 int fd; | |
| 4483 struct block0 b0; | |
| 4484 int differ = FALSE; | |
| 4485 | |
| 4486 /* | |
| 4487 * Try to read block 0 from the swap file to get the original | |
| 4488 * file name (and inode number). | |
| 4489 */ | |
| 4490 fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
| 4491 if (fd >= 0) | |
| 4492 { | |
| 2664 | 4493 if (read_eintr(fd, &b0, sizeof(b0)) == sizeof(b0)) |
| 7 | 4494 { |
| 4495 /* | |
| 39 | 4496 * If the swapfile has the same directory as the |
| 4497 * buffer don't compare the directory names, they can | |
| 4498 * have a different mountpoint. | |
| 7 | 4499 */ |
| 39 | 4500 if (b0.b0_flags & B0_SAME_DIR) |
| 4501 { | |
| 4502 if (fnamecmp(gettail(buf->b_ffname), | |
| 4503 gettail(b0.b0_fname)) != 0 | |
| 4504 || !same_directory(fname, buf->b_ffname)) | |
| 594 | 4505 { |
| 4506 #ifdef CHECK_INODE | |
| 4507 /* Symlinks may point to the same file even | |
| 4508 * when the name differs, need to check the | |
| 4509 * inode too. */ | |
| 4510 expand_env(b0.b0_fname, NameBuff, MAXPATHL); | |
| 4511 if (fnamecmp_ino(buf->b_ffname, NameBuff, | |
| 4512 char_to_long(b0.b0_ino))) | |
| 4513 #endif | |
| 4514 differ = TRUE; | |
| 4515 } | |
| 39 | 4516 } |
| 4517 else | |
| 4518 { | |
| 4519 /* | |
| 4520 * The name in the swap file may be | |
| 4521 * "~user/path/file". Expand it first. | |
| 4522 */ | |
| 4523 expand_env(b0.b0_fname, NameBuff, MAXPATHL); | |
| 7 | 4524 #ifdef CHECK_INODE |
| 39 | 4525 if (fnamecmp_ino(buf->b_ffname, NameBuff, |
| 594 | 4526 char_to_long(b0.b0_ino))) |
| 39 | 4527 differ = TRUE; |
| 7 | 4528 #else |
| 39 | 4529 if (fnamecmp(NameBuff, buf->b_ffname) != 0) |
| 4530 differ = TRUE; | |
| 7 | 4531 #endif |
| 39 | 4532 } |
| 7 | 4533 } |
| 4534 close(fd); | |
| 4535 } | |
| 4536 | |
| 4537 /* give the ATTENTION message when there is an old swap file | |
| 4538 * for the current file, and the buffer was not recovered. */ | |
| 4539 if (differ == FALSE && !(curbuf->b_flags & BF_RECOVERED) | |
| 4540 && vim_strchr(p_shm, SHM_ATTENTION) == NULL) | |
| 4541 { | |
| 580 | 4542 #if defined(HAS_SWAP_EXISTS_ACTION) |
| 4543 int choice = 0; | |
| 4544 #endif | |
| 7 | 4545 #ifdef CREATE_DUMMY_FILE |
| 4546 int did_use_dummy = FALSE; | |
| 4547 | |
| 4548 /* Avoid getting a warning for the file being created | |
| 4549 * outside of Vim, it was created at the start of this | |
| 4550 * function. Delete the file now, because Vim might exit | |
| 4551 * here if the window is closed. */ | |
| 4552 if (dummyfd != NULL) | |
| 4553 { | |
| 4554 fclose(dummyfd); | |
| 4555 dummyfd = NULL; | |
| 5432 | 4556 mch_remove(buf_fname); |
| 7 | 4557 did_use_dummy = TRUE; |
| 4558 } | |
| 4559 #endif | |
| 4560 | |
|
9536
b2aada04d84e
commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
4561 #if (defined(UNIX) || defined(VMS)) && (defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)) |
| 7 | 4562 process_still_running = FALSE; |
| 4563 #endif | |
|
13380
69517d67421f
patch 8.0.1564: too many #ifdefs
Christian Brabandt <cb@256bit.org>
parents:
13244
diff
changeset
|
4564 #if defined(FEAT_EVAL) |
| 580 | 4565 /* |
| 4566 * If there is an SwapExists autocommand and we can handle | |
| 4567 * the response, trigger it. It may return 0 to ask the | |
| 4568 * user anyway. | |
| 4569 */ | |
| 4570 if (swap_exists_action != SEA_NONE | |
| 5432 | 4571 && has_autocmd(EVENT_SWAPEXISTS, buf_fname, buf)) |
| 580 | 4572 choice = do_swapexists(buf, fname); |
| 4573 | |
| 4574 if (choice == 0) | |
| 4575 #endif | |
| 7 | 4576 { |
| 580 | 4577 #ifdef FEAT_GUI |
|
14903
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4578 // If we are supposed to start the GUI but it wasn't |
|
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4579 // completely started yet, start it now. This makes |
|
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4580 // the messages displayed in the Vim window when |
|
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4581 // loading a session from the .gvimrc file. |
| 580 | 4582 if (gui.starting && !gui.in_use) |
| 4583 gui_start(); | |
| 4584 #endif | |
|
14903
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4585 // Show info about the existing swap file. |
| 580 | 4586 attention_message(buf, fname); |
| 4587 | |
|
14903
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4588 // We don't want a 'q' typed at the more-prompt |
|
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4589 // interrupt loading a file. |
| 580 | 4590 got_int = FALSE; |
|
14903
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4591 |
|
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4592 // If vimrc has "simalt ~x" we don't want it to |
|
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4593 // interfere with the prompt here. |
|
14909
c97b4b537572
patch 8.1.0466: autocmd test fails
Bram Moolenaar <Bram@vim.org>
parents:
14903
diff
changeset
|
4594 flush_buffers(FLUSH_TYPEAHEAD); |
| 7 | 4595 } |
| 4596 | |
| 4597 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) | |
| 580 | 4598 if (swap_exists_action != SEA_NONE && choice == 0) |
| 7 | 4599 { |
| 4600 char_u *name; | |
| 4601 | |
| 4602 name = alloc((unsigned)(STRLEN(fname) | |
| 4603 + STRLEN(_("Swap file \"")) | |
| 4604 + STRLEN(_("\" already exists!")) + 5)); | |
| 4605 if (name != NULL) | |
| 4606 { | |
| 4607 STRCPY(name, _("Swap file \"")); | |
| 4608 home_replace(NULL, fname, name + STRLEN(name), | |
| 4609 1000, TRUE); | |
| 4610 STRCAT(name, _("\" already exists!")); | |
| 4611 } | |
| 580 | 4612 choice = do_dialog(VIM_WARNING, |
| 7 | 4613 (char_u *)_("VIM - ATTENTION"), |
| 4614 name == NULL | |
| 4615 ? (char_u *)_("Swap file already exists!") | |
| 4616 : name, | |
|
9536
b2aada04d84e
commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
4617 # if defined(UNIX) || defined(VMS) |
| 7 | 4618 process_still_running |
| 4619 ? (char_u *)_("&Open Read-Only\n&Edit anyway\n&Recover\n&Quit\n&Abort") : | |
| 4620 # endif | |
| 2684 | 4621 (char_u *)_("&Open Read-Only\n&Edit anyway\n&Recover\n&Delete it\n&Quit\n&Abort"), 1, NULL, FALSE); |
| 580 | 4622 |
|
9536
b2aada04d84e
commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
4623 # if defined(UNIX) || defined(VMS) |
| 580 | 4624 if (process_still_running && choice >= 4) |
| 4625 choice++; /* Skip missing "Delete it" button */ | |
| 4626 # endif | |
| 4627 vim_free(name); | |
| 4628 | |
| 4629 /* pretend screen didn't scroll, need redraw anyway */ | |
| 4630 msg_scrolled = 0; | |
| 4631 redraw_all_later(NOT_VALID); | |
| 4632 } | |
| 4633 #endif | |
| 4634 | |
| 4635 #if defined(HAS_SWAP_EXISTS_ACTION) | |
| 4636 if (choice > 0) | |
| 4637 { | |
| 4638 switch (choice) | |
| 7 | 4639 { |
| 4640 case 1: | |
| 4641 buf->b_p_ro = TRUE; | |
| 4642 break; | |
| 4643 case 2: | |
| 4644 break; | |
| 4645 case 3: | |
| 4646 swap_exists_action = SEA_RECOVER; | |
| 4647 break; | |
| 4648 case 4: | |
| 580 | 4649 mch_remove(fname); |
| 4650 break; | |
| 4651 case 5: | |
| 7 | 4652 swap_exists_action = SEA_QUIT; |
| 4653 break; | |
| 580 | 4654 case 6: |
| 7 | 4655 swap_exists_action = SEA_QUIT; |
| 4656 got_int = TRUE; | |
| 4657 break; | |
| 4658 } | |
| 4659 | |
| 4660 /* If the file was deleted this fname can be used. */ | |
| 4661 if (mch_getperm(fname) < 0) | |
| 4662 break; | |
| 4663 } | |
| 4664 else | |
| 4665 #endif | |
| 4666 { | |
| 4667 MSG_PUTS("\n"); | |
| 625 | 4668 if (msg_silent == 0) |
| 4669 /* call wait_return() later */ | |
| 4670 need_wait_return = TRUE; | |
| 7 | 4671 } |
| 4672 | |
| 4673 #ifdef CREATE_DUMMY_FILE | |
| 4674 /* Going to try another name, need the dummy file again. */ | |
| 4675 if (did_use_dummy) | |
| 5432 | 4676 dummyfd = mch_fopen((char *)buf_fname, "w"); |
| 7 | 4677 #endif |
| 4678 } | |
| 4679 } | |
| 4680 } | |
| 4681 | |
| 4682 /* | |
| 4683 * Change the ".swp" extension to find another file that can be used. | |
| 4684 * First decrement the last char: ".swo", ".swn", etc. | |
| 4685 * If that still isn't enough decrement the last but one char: ".svz" | |
| 9 | 4686 * Can happen when editing many "No Name" buffers. |
| 7 | 4687 */ |
| 4688 if (fname[n - 1] == 'a') /* ".s?a" */ | |
| 4689 { | |
| 4690 if (fname[n - 2] == 'a') /* ".saa": tried enough, give up */ | |
| 4691 { | |
| 4692 EMSG(_("E326: Too many swap files found")); | |
|
13244
ac42c4b11dbc
patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12975
diff
changeset
|
4693 VIM_CLEAR(fname); |
| 7 | 4694 break; |
| 4695 } | |
| 4696 --fname[n - 2]; /* ".svz", ".suz", etc. */ | |
| 4697 fname[n - 1] = 'z' + 1; | |
| 4698 } | |
| 4699 --fname[n - 1]; /* ".swo", ".swn", etc. */ | |
| 4700 } | |
| 4701 | |
| 4702 vim_free(dir_name); | |
| 4703 #ifdef CREATE_DUMMY_FILE | |
| 4704 if (dummyfd != NULL) /* file has been created temporarily */ | |
| 4705 { | |
| 4706 fclose(dummyfd); | |
| 5432 | 4707 mch_remove(buf_fname); |
| 7 | 4708 } |
| 4709 #endif | |
| 5432 | 4710 #ifdef WIN3264 |
| 4711 if (buf_fname != buf->b_fname) | |
| 4712 vim_free(buf_fname); | |
| 4713 #endif | |
| 7 | 4714 return fname; |
| 4715 } | |
| 4716 | |
| 4717 static int | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4718 b0_magic_wrong(ZERO_BL *b0p) |
| 7 | 4719 { |
| 4720 return (b0p->b0_magic_long != (long)B0_MAGIC_LONG | |
| 4721 || b0p->b0_magic_int != (int)B0_MAGIC_INT | |
| 4722 || b0p->b0_magic_short != (short)B0_MAGIC_SHORT | |
| 4723 || b0p->b0_magic_char != B0_MAGIC_CHAR); | |
| 4724 } | |
| 4725 | |
| 4726 #ifdef CHECK_INODE | |
| 4727 /* | |
| 4728 * Compare current file name with file name from swap file. | |
| 4729 * Try to use inode numbers when possible. | |
| 4730 * Return non-zero when files are different. | |
| 4731 * | |
| 4732 * When comparing file names a few things have to be taken into consideration: | |
| 4733 * - When working over a network the full path of a file depends on the host. | |
| 4734 * We check the inode number if possible. It is not 100% reliable though, | |
| 4735 * because the device number cannot be used over a network. | |
| 4736 * - When a file does not exist yet (editing a new file) there is no inode | |
| 4737 * number. | |
| 4738 * - The file name in a swap file may not be valid on the current host. The | |
| 4739 * "~user" form is used whenever possible to avoid this. | |
| 4740 * | |
| 4741 * This is getting complicated, let's make a table: | |
| 4742 * | |
| 4743 * ino_c ino_s fname_c fname_s differ = | |
| 4744 * | |
| 4745 * both files exist -> compare inode numbers: | |
| 4746 * != 0 != 0 X X ino_c != ino_s | |
| 4747 * | |
| 4748 * inode number(s) unknown, file names available -> compare file names | |
| 4749 * == 0 X OK OK fname_c != fname_s | |
| 4750 * X == 0 OK OK fname_c != fname_s | |
| 4751 * | |
| 4752 * current file doesn't exist, file for swap file exist, file name(s) not | |
| 4753 * available -> probably different | |
| 4754 * == 0 != 0 FAIL X TRUE | |
| 4755 * == 0 != 0 X FAIL TRUE | |
| 4756 * | |
| 4757 * current file exists, inode for swap unknown, file name(s) not | |
| 4758 * available -> probably different | |
| 4759 * != 0 == 0 FAIL X TRUE | |
| 4760 * != 0 == 0 X FAIL TRUE | |
| 4761 * | |
| 4762 * current file doesn't exist, inode for swap unknown, one file name not | |
| 4763 * available -> probably different | |
| 4764 * == 0 == 0 FAIL OK TRUE | |
| 4765 * == 0 == 0 OK FAIL TRUE | |
| 4766 * | |
| 4767 * current file doesn't exist, inode for swap unknown, both file names not | |
|
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diff
changeset
|
4768 * available -> compare file names |
|
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Christian Brabandt <cb@256bit.org>
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13632
diff
changeset
|
4769 * == 0 == 0 FAIL FAIL fname_c != fname_s |
| 7 | 4770 * |
| 4771 * Note that when the ino_t is 64 bits, only the last 32 will be used. This | |
| 4772 * can't be changed without making the block 0 incompatible with 32 bit | |
| 4773 * versions. | |
| 4774 */ | |
| 4775 | |
| 4776 static int | |
|
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parents:
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diff
changeset
|
4777 fnamecmp_ino( |
|
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parents:
7803
diff
changeset
|
4778 char_u *fname_c, /* current file name */ |
|
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parents:
7803
diff
changeset
|
4779 char_u *fname_s, /* file name from swap file */ |
|
41789f16d6b2
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4780 long ino_block0) |
| 7 | 4781 { |
|
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Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4782 stat_T st; |
| 7 | 4783 ino_t ino_c = 0; /* ino of current file */ |
| 4784 ino_t ino_s; /* ino of file from swap file */ | |
| 4785 char_u buf_c[MAXPATHL]; /* full path of fname_c */ | |
| 4786 char_u buf_s[MAXPATHL]; /* full path of fname_s */ | |
| 4787 int retval_c; /* flag: buf_c valid */ | |
| 4788 int retval_s; /* flag: buf_s valid */ | |
| 4789 | |
| 4790 if (mch_stat((char *)fname_c, &st) == 0) | |
| 4791 ino_c = (ino_t)st.st_ino; | |
| 4792 | |
| 4793 /* | |
| 4794 * First we try to get the inode from the file name, because the inode in | |
| 4795 * the swap file may be outdated. If that fails (e.g. this path is not | |
| 4796 * valid on this machine), use the inode from block 0. | |
| 4797 */ | |
| 4798 if (mch_stat((char *)fname_s, &st) == 0) | |
| 4799 ino_s = (ino_t)st.st_ino; | |
| 4800 else | |
| 4801 ino_s = (ino_t)ino_block0; | |
| 4802 | |
| 4803 if (ino_c && ino_s) | |
| 4804 return (ino_c != ino_s); | |
| 4805 | |
| 4806 /* | |
| 4807 * One of the inode numbers is unknown, try a forced vim_FullName() and | |
| 4808 * compare the file names. | |
| 4809 */ | |
| 4810 retval_c = vim_FullName(fname_c, buf_c, MAXPATHL, TRUE); | |
| 4811 retval_s = vim_FullName(fname_s, buf_s, MAXPATHL, TRUE); | |
| 4812 if (retval_c == OK && retval_s == OK) | |
|
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diff
changeset
|
4813 return STRCMP(buf_c, buf_s) != 0; |
| 7 | 4814 |
| 4815 /* | |
| 4816 * Can't compare inodes or file names, guess that the files are different, | |
|
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diff
changeset
|
4817 * unless both appear not to exist at all, then compare with the file name |
|
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Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4818 * in the swap file. |
| 7 | 4819 */ |
| 4820 if (ino_s == 0 && ino_c == 0 && retval_c == FAIL && retval_s == FAIL) | |
|
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13632
diff
changeset
|
4821 return STRCMP(fname_c, fname_s) != 0; |
| 7 | 4822 return TRUE; |
| 4823 } | |
| 4824 #endif /* CHECK_INODE */ | |
| 4825 | |
| 4826 /* | |
| 4827 * Move a long integer into a four byte character array. | |
| 4828 * Used for machine independency in block zero. | |
| 4829 */ | |
| 4830 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4831 long_to_char(long n, char_u *s) |
| 7 | 4832 { |
| 4833 s[0] = (char_u)(n & 0xff); | |
| 4834 n = (unsigned)n >> 8; | |
| 4835 s[1] = (char_u)(n & 0xff); | |
| 4836 n = (unsigned)n >> 8; | |
| 4837 s[2] = (char_u)(n & 0xff); | |
| 4838 n = (unsigned)n >> 8; | |
| 4839 s[3] = (char_u)(n & 0xff); | |
| 4840 } | |
| 4841 | |
| 4842 static long | |
|
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parents:
7803
diff
changeset
|
4843 char_to_long(char_u *s) |
| 7 | 4844 { |
| 4845 long retval; | |
| 4846 | |
| 4847 retval = s[3]; | |
| 4848 retval <<= 8; | |
| 4849 retval |= s[2]; | |
| 4850 retval <<= 8; | |
| 4851 retval |= s[1]; | |
| 4852 retval <<= 8; | |
| 4853 retval |= s[0]; | |
| 4854 | |
| 4855 return retval; | |
| 4856 } | |
| 4857 | |
| 39 | 4858 /* |
| 4859 * Set the flags in the first block of the swap file: | |
| 4860 * - file is modified or not: buf->b_changed | |
| 4861 * - 'fileformat' | |
| 4862 * - 'fileencoding' | |
| 4863 */ | |
| 7 | 4864 void |
|
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parents:
7803
diff
changeset
|
4865 ml_setflags(buf_T *buf) |
| 7 | 4866 { |
| 4867 bhdr_T *hp; | |
| 4868 ZERO_BL *b0p; | |
| 4869 | |
| 4870 if (!buf->b_ml.ml_mfp) | |
| 4871 return; | |
| 4872 for (hp = buf->b_ml.ml_mfp->mf_used_last; hp != NULL; hp = hp->bh_prev) | |
| 4873 { | |
| 4874 if (hp->bh_bnum == 0) | |
| 4875 { | |
| 4876 b0p = (ZERO_BL *)(hp->bh_data); | |
| 39 | 4877 b0p->b0_dirty = buf->b_changed ? B0_DIRTY : 0; |
| 4878 b0p->b0_flags = (b0p->b0_flags & ~B0_FF_MASK) | |
| 4879 | (get_fileformat(buf) + 1); | |
| 4880 #ifdef FEAT_MBYTE | |
| 4881 add_b0_fenc(b0p, buf); | |
| 4882 #endif | |
| 7 | 4883 hp->bh_flags |= BH_DIRTY; |
| 4884 mf_sync(buf->b_ml.ml_mfp, MFS_ZERO); | |
| 4885 break; | |
| 4886 } | |
| 4887 } | |
| 4888 } | |
| 4889 | |
| 2267 | 4890 #if defined(FEAT_CRYPT) || defined(PROTO) |
| 4891 /* | |
| 4892 * If "data" points to a data block encrypt the text in it and return a copy | |
| 4893 * in allocated memory. Return NULL when out of memory. | |
| 4894 * Otherwise return "data". | |
| 4895 */ | |
| 4896 char_u * | |
|
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parents:
7803
diff
changeset
|
4897 ml_encrypt_data( |
|
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diff
changeset
|
4898 memfile_T *mfp, |
|
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diff
changeset
|
4899 char_u *data, |
|
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parents:
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diff
changeset
|
4900 off_T offset, |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4901 unsigned size) |
| 2267 | 4902 { |
| 4903 DATA_BL *dp = (DATA_BL *)data; | |
| 4904 char_u *head_end; | |
| 4905 char_u *text_start; | |
| 4906 char_u *new_data; | |
| 4907 int text_len; | |
| 6122 | 4908 cryptstate_T *state; |
| 2267 | 4909 |
| 4910 if (dp->db_id != DATA_ID) | |
| 4911 return data; | |
| 4912 | |
| 6817 | 4913 state = ml_crypt_prepare(mfp, offset, FALSE); |
| 4914 if (state == NULL) | |
| 4915 return data; | |
| 4916 | |
| 2267 | 4917 new_data = (char_u *)alloc(size); |
| 4918 if (new_data == NULL) | |
| 4919 return NULL; | |
| 4920 head_end = (char_u *)(&dp->db_index[dp->db_line_count]); | |
| 4921 text_start = (char_u *)dp + dp->db_txt_start; | |
| 4922 text_len = size - dp->db_txt_start; | |
| 4923 | |
| 4924 /* Copy the header and the text. */ | |
| 4925 mch_memmove(new_data, dp, head_end - (char_u *)dp); | |
| 4926 | |
| 4927 /* Encrypt the text. */ | |
| 6122 | 4928 crypt_encode(state, text_start, text_len, new_data + dp->db_txt_start); |
| 4929 crypt_free_state(state); | |
| 2267 | 4930 |
| 4931 /* Clear the gap. */ | |
| 4932 if (head_end < text_start) | |
| 4933 vim_memset(new_data + (head_end - data), 0, text_start - head_end); | |
| 4934 | |
| 4935 return new_data; | |
| 4936 } | |
| 4937 | |
| 4938 /* | |
| 6817 | 4939 * Decrypt the text in "data" if it points to an encrypted data block. |
| 2267 | 4940 */ |
| 4941 void | |
|
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7803
diff
changeset
|
4942 ml_decrypt_data( |
|
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parents:
7803
diff
changeset
|
4943 memfile_T *mfp, |
|
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parents:
7803
diff
changeset
|
4944 char_u *data, |
|
9387
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parents:
9295
diff
changeset
|
4945 off_T offset, |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4946 unsigned size) |
| 2267 | 4947 { |
| 4948 DATA_BL *dp = (DATA_BL *)data; | |
| 4949 char_u *head_end; | |
| 4950 char_u *text_start; | |
| 4951 int text_len; | |
| 6122 | 4952 cryptstate_T *state; |
| 2267 | 4953 |
| 4954 if (dp->db_id == DATA_ID) | |
| 4955 { | |
| 4956 head_end = (char_u *)(&dp->db_index[dp->db_line_count]); | |
| 4957 text_start = (char_u *)dp + dp->db_txt_start; | |
| 4958 text_len = dp->db_txt_end - dp->db_txt_start; | |
| 4959 | |
| 4960 if (head_end > text_start || dp->db_txt_start > size | |
| 4961 || dp->db_txt_end > size) | |
| 4962 return; /* data was messed up */ | |
| 4963 | |
| 6122 | 4964 state = ml_crypt_prepare(mfp, offset, TRUE); |
| 6817 | 4965 if (state != NULL) |
| 4966 { | |
| 4967 /* Decrypt the text in place. */ | |
| 4968 crypt_decode_inplace(state, text_start, text_len); | |
| 4969 crypt_free_state(state); | |
| 4970 } | |
| 2267 | 4971 } |
| 4972 } | |
| 4973 | |
| 4974 /* | |
| 4975 * Prepare for encryption/decryption, using the key, seed and offset. | |
| 6122 | 4976 * Return an allocated cryptstate_T *. |
| 2267 | 4977 */ |
| 6122 | 4978 static cryptstate_T * |
|
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Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4979 ml_crypt_prepare(memfile_T *mfp, off_T offset, int reading) |
| 2267 | 4980 { |
| 4981 buf_T *buf = mfp->mf_buffer; | |
| 4982 char_u salt[50]; | |
| 6122 | 4983 int method_nr; |
| 2267 | 4984 char_u *key; |
| 4985 char_u *seed; | |
| 4986 | |
| 4987 if (reading && mfp->mf_old_key != NULL) | |
| 4988 { | |
| 4989 /* Reading back blocks with the previous key/method/seed. */ | |
| 6122 | 4990 method_nr = mfp->mf_old_cm; |
| 2267 | 4991 key = mfp->mf_old_key; |
| 4992 seed = mfp->mf_old_seed; | |
| 4993 } | |
| 4994 else | |
| 4995 { | |
| 6122 | 4996 method_nr = crypt_get_method_nr(buf); |
| 2267 | 4997 key = buf->b_p_key; |
| 4998 seed = mfp->mf_seed; | |
| 4999 } | |
| 6817 | 5000 if (*key == NUL) |
| 5001 return NULL; | |
| 2267 | 5002 |
| 6122 | 5003 if (method_nr == CRYPT_M_ZIP) |
| 2267 | 5004 { |
| 6122 | 5005 /* For PKzip: Append the offset to the key, so that we use a different |
| 5006 * key for every block. */ | |
| 2267 | 5007 vim_snprintf((char *)salt, sizeof(salt), "%s%ld", key, (long)offset); |
| 6122 | 5008 return crypt_create(method_nr, salt, NULL, 0, NULL, 0); |
| 2267 | 5009 } |
| 6122 | 5010 |
| 5011 /* Using blowfish or better: add salt and seed. We use the byte offset | |
| 5012 * of the block for the salt. */ | |
| 5013 vim_snprintf((char *)salt, sizeof(salt), "%ld", (long)offset); | |
| 5014 return crypt_create(method_nr, key, salt, (int)STRLEN(salt), | |
| 5015 seed, MF_SEED_LEN); | |
| 2267 | 5016 } |
| 5017 | |
| 5018 #endif | |
| 5019 | |
| 5020 | |
| 7 | 5021 #if defined(FEAT_BYTEOFF) || defined(PROTO) |
| 5022 | |
| 5023 #define MLCS_MAXL 800 /* max no of lines in chunk */ | |
| 5024 #define MLCS_MINL 400 /* should be half of MLCS_MAXL */ | |
| 5025 | |
| 5026 /* | |
|
2407
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Bram Moolenaar <bram@vim.org>
parents:
2394
diff
changeset
|
5027 * Keep information for finding byte offset of a line, updtype may be one of: |
| 7 | 5028 * ML_CHNK_ADDLINE: Add len to parent chunk, possibly splitting it |
| 5029 * Careful: ML_CHNK_ADDLINE may cause ml_find_line() to be called. | |
| 5030 * ML_CHNK_DELLINE: Subtract len from parent chunk, possibly deleting it | |
| 5031 * ML_CHNK_UPDLINE: Add len to parent chunk, as a signed entity. | |
| 5032 */ | |
| 5033 static void | |
|
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diff
changeset
|
5034 ml_updatechunk( |
|
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diff
changeset
|
5035 buf_T *buf, |
|
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7803
diff
changeset
|
5036 linenr_T line, |
|
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diff
changeset
|
5037 long len, |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
5038 int updtype) |
| 7 | 5039 { |
| 5040 static buf_T *ml_upd_lastbuf = NULL; | |
| 5041 static linenr_T ml_upd_lastline; | |
| 5042 static linenr_T ml_upd_lastcurline; | |
| 5043 static int ml_upd_lastcurix; | |
| 5044 | |
| 5045 linenr_T curline = ml_upd_lastcurline; | |
| 5046 int curix = ml_upd_lastcurix; | |
| 5047 long size; | |
| 5048 chunksize_T *curchnk; | |
| 5049 int rest; | |
| 5050 bhdr_T *hp; | |
| 5051 DATA_BL *dp; | |
| 5052 | |
| 5053 if (buf->b_ml.ml_usedchunks == -1 || len == 0) | |
| 5054 return; | |
| 5055 if (buf->b_ml.ml_chunksize == NULL) | |
| 5056 { | |
| 5057 buf->b_ml.ml_chunksize = (chunksize_T *) | |
| 5058 alloc((unsigned)sizeof(chunksize_T) * 100); | |
| 5059 if (buf->b_ml.ml_chunksize == NULL) | |
| 5060 { | |
| 5061 buf->b_ml.ml_usedchunks = -1; | |
| 5062 return; | |
| 5063 } | |
| 5064 buf->b_ml.ml_numchunks = 100; | |
| 5065 buf->b_ml.ml_usedchunks = 1; | |
| 5066 buf->b_ml.ml_chunksize[0].mlcs_numlines = 1; | |
| 5067 buf->b_ml.ml_chunksize[0].mlcs_totalsize = 1; | |
| 5068 } | |
| 5069 | |
| 5070 if (updtype == ML_CHNK_UPDLINE && buf->b_ml.ml_line_count == 1) | |
| 5071 { | |
| 5072 /* | |
| 5073 * First line in empty buffer from ml_flush_line() -- reset | |
| 5074 */ | |
| 5075 buf->b_ml.ml_usedchunks = 1; | |
| 5076 buf->b_ml.ml_chunksize[0].mlcs_numlines = 1; | |
|
15138
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
5077 buf->b_ml.ml_chunksize[0].mlcs_totalsize = (long)buf->b_ml.ml_line_len; |
| 7 | 5078 return; |
| 5079 } | |
| 5080 | |
| 5081 /* | |
| 5082 * Find chunk that our line belongs to, curline will be at start of the | |
| 5083 * chunk. | |
| 5084 */ | |
| 5085 if (buf != ml_upd_lastbuf || line != ml_upd_lastline + 1 | |
| 5086 || updtype != ML_CHNK_ADDLINE) | |
| 5087 { | |
| 5088 for (curline = 1, curix = 0; | |
| 5089 curix < buf->b_ml.ml_usedchunks - 1 | |
| 5090 && line >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5091 curix++) | |
| 5092 { | |
| 5093 curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5094 } | |
| 5095 } | |
|
14980
c98810dfebaf
patch 8.1.0501: cppcheck warns for using array index before bounds check
Bram Moolenaar <Bram@vim.org>
parents:
14923
diff
changeset
|
5096 else if (curix < buf->b_ml.ml_usedchunks - 1 |
|
c98810dfebaf
patch 8.1.0501: cppcheck warns for using array index before bounds check
Bram Moolenaar <Bram@vim.org>
parents:
14923
diff
changeset
|
5097 && line >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines) |
| 7 | 5098 { |
| 5099 /* Adjust cached curix & curline */ | |
| 5100 curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5101 curix++; | |
| 5102 } | |
| 5103 curchnk = buf->b_ml.ml_chunksize + curix; | |
| 5104 | |
| 5105 if (updtype == ML_CHNK_DELLINE) | |
| 1030 | 5106 len = -len; |
| 7 | 5107 curchnk->mlcs_totalsize += len; |
| 5108 if (updtype == ML_CHNK_ADDLINE) | |
| 5109 { | |
| 5110 curchnk->mlcs_numlines++; | |
| 5111 | |
| 5112 /* May resize here so we don't have to do it in both cases below */ | |
| 5113 if (buf->b_ml.ml_usedchunks + 1 >= buf->b_ml.ml_numchunks) | |
| 5114 { | |
| 6596 | 5115 chunksize_T *t_chunksize = buf->b_ml.ml_chunksize; |
| 5116 | |
| 7 | 5117 buf->b_ml.ml_numchunks = buf->b_ml.ml_numchunks * 3 / 2; |
| 5118 buf->b_ml.ml_chunksize = (chunksize_T *) | |
| 5119 vim_realloc(buf->b_ml.ml_chunksize, | |
| 5120 sizeof(chunksize_T) * buf->b_ml.ml_numchunks); | |
| 5121 if (buf->b_ml.ml_chunksize == NULL) | |
| 5122 { | |
| 5123 /* Hmmmm, Give up on offset for this buffer */ | |
| 6596 | 5124 vim_free(t_chunksize); |
| 7 | 5125 buf->b_ml.ml_usedchunks = -1; |
| 5126 return; | |
| 5127 } | |
| 5128 } | |
| 5129 | |
| 5130 if (buf->b_ml.ml_chunksize[curix].mlcs_numlines >= MLCS_MAXL) | |
| 5131 { | |
| 5132 int count; /* number of entries in block */ | |
| 5133 int idx; | |
| 5134 int text_end; | |
| 5135 int linecnt; | |
| 5136 | |
| 5137 mch_memmove(buf->b_ml.ml_chunksize + curix + 1, | |
| 5138 buf->b_ml.ml_chunksize + curix, | |
| 5139 (buf->b_ml.ml_usedchunks - curix) * | |
| 5140 sizeof(chunksize_T)); | |
| 1855 | 5141 /* Compute length of first half of lines in the split chunk */ |
| 7 | 5142 size = 0; |
| 5143 linecnt = 0; | |
| 5144 while (curline < buf->b_ml.ml_line_count | |
| 5145 && linecnt < MLCS_MINL) | |
| 5146 { | |
| 5147 if ((hp = ml_find_line(buf, curline, ML_FIND)) == NULL) | |
| 5148 { | |
| 5149 buf->b_ml.ml_usedchunks = -1; | |
| 5150 return; | |
| 5151 } | |
| 5152 dp = (DATA_BL *)(hp->bh_data); | |
| 5153 count = (long)(buf->b_ml.ml_locked_high) - | |
| 5154 (long)(buf->b_ml.ml_locked_low) + 1; | |
| 5155 idx = curline - buf->b_ml.ml_locked_low; | |
| 5156 curline = buf->b_ml.ml_locked_high + 1; | |
| 5157 if (idx == 0)/* first line in block, text at the end */ | |
| 5158 text_end = dp->db_txt_end; | |
| 5159 else | |
| 5160 text_end = ((dp->db_index[idx - 1]) & DB_INDEX_MASK); | |
| 5161 /* Compute index of last line to use in this MEMLINE */ | |
| 5162 rest = count - idx; | |
| 5163 if (linecnt + rest > MLCS_MINL) | |
| 5164 { | |
| 5165 idx += MLCS_MINL - linecnt - 1; | |
| 5166 linecnt = MLCS_MINL; | |
| 5167 } | |
| 5168 else | |
| 5169 { | |
| 5170 idx = count - 1; | |
| 5171 linecnt += rest; | |
| 5172 } | |
| 5173 size += text_end - ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 5174 } | |
| 5175 buf->b_ml.ml_chunksize[curix].mlcs_numlines = linecnt; | |
| 5176 buf->b_ml.ml_chunksize[curix + 1].mlcs_numlines -= linecnt; | |
| 5177 buf->b_ml.ml_chunksize[curix].mlcs_totalsize = size; | |
| 5178 buf->b_ml.ml_chunksize[curix + 1].mlcs_totalsize -= size; | |
| 5179 buf->b_ml.ml_usedchunks++; | |
| 5180 ml_upd_lastbuf = NULL; /* Force recalc of curix & curline */ | |
| 5181 return; | |
| 5182 } | |
| 5183 else if (buf->b_ml.ml_chunksize[curix].mlcs_numlines >= MLCS_MINL | |
| 5184 && curix == buf->b_ml.ml_usedchunks - 1 | |
| 5185 && buf->b_ml.ml_line_count - line <= 1) | |
| 5186 { | |
| 5187 /* | |
| 5188 * We are in the last chunk and it is cheap to crate a new one | |
| 5189 * after this. Do it now to avoid the loop above later on | |
| 5190 */ | |
| 5191 curchnk = buf->b_ml.ml_chunksize + curix + 1; | |
| 5192 buf->b_ml.ml_usedchunks++; | |
| 5193 if (line == buf->b_ml.ml_line_count) | |
| 5194 { | |
| 5195 curchnk->mlcs_numlines = 0; | |
| 5196 curchnk->mlcs_totalsize = 0; | |
| 5197 } | |
| 5198 else | |
| 5199 { | |
| 5200 /* | |
| 5201 * Line is just prior to last, move count for last | |
| 5202 * This is the common case when loading a new file | |
| 5203 */ | |
| 5204 hp = ml_find_line(buf, buf->b_ml.ml_line_count, ML_FIND); | |
| 5205 if (hp == NULL) | |
| 5206 { | |
| 5207 buf->b_ml.ml_usedchunks = -1; | |
| 5208 return; | |
| 5209 } | |
| 5210 dp = (DATA_BL *)(hp->bh_data); | |
| 5211 if (dp->db_line_count == 1) | |
| 5212 rest = dp->db_txt_end - dp->db_txt_start; | |
| 5213 else | |
| 5214 rest = | |
| 5215 ((dp->db_index[dp->db_line_count - 2]) & DB_INDEX_MASK) | |
| 5216 - dp->db_txt_start; | |
| 5217 curchnk->mlcs_totalsize = rest; | |
| 5218 curchnk->mlcs_numlines = 1; | |
| 5219 curchnk[-1].mlcs_totalsize -= rest; | |
| 5220 curchnk[-1].mlcs_numlines -= 1; | |
| 5221 } | |
| 5222 } | |
| 5223 } | |
| 5224 else if (updtype == ML_CHNK_DELLINE) | |
| 5225 { | |
| 5226 curchnk->mlcs_numlines--; | |
| 5227 ml_upd_lastbuf = NULL; /* Force recalc of curix & curline */ | |
| 5228 if (curix < (buf->b_ml.ml_usedchunks - 1) | |
| 5229 && (curchnk->mlcs_numlines + curchnk[1].mlcs_numlines) | |
| 5230 <= MLCS_MINL) | |
| 5231 { | |
| 5232 curix++; | |
| 5233 curchnk = buf->b_ml.ml_chunksize + curix; | |
| 5234 } | |
| 5235 else if (curix == 0 && curchnk->mlcs_numlines <= 0) | |
| 5236 { | |
| 5237 buf->b_ml.ml_usedchunks--; | |
| 5238 mch_memmove(buf->b_ml.ml_chunksize, buf->b_ml.ml_chunksize + 1, | |
| 5239 buf->b_ml.ml_usedchunks * sizeof(chunksize_T)); | |
| 5240 return; | |
| 5241 } | |
| 5242 else if (curix == 0 || (curchnk->mlcs_numlines > 10 | |
| 5243 && (curchnk->mlcs_numlines + curchnk[-1].mlcs_numlines) | |
| 5244 > MLCS_MINL)) | |
| 5245 { | |
| 5246 return; | |
| 5247 } | |
| 5248 | |
| 5249 /* Collapse chunks */ | |
| 5250 curchnk[-1].mlcs_numlines += curchnk->mlcs_numlines; | |
| 5251 curchnk[-1].mlcs_totalsize += curchnk->mlcs_totalsize; | |
| 5252 buf->b_ml.ml_usedchunks--; | |
| 5253 if (curix < buf->b_ml.ml_usedchunks) | |
| 5254 { | |
| 5255 mch_memmove(buf->b_ml.ml_chunksize + curix, | |
| 5256 buf->b_ml.ml_chunksize + curix + 1, | |
| 5257 (buf->b_ml.ml_usedchunks - curix) * | |
| 5258 sizeof(chunksize_T)); | |
| 5259 } | |
| 5260 return; | |
| 5261 } | |
| 5262 ml_upd_lastbuf = buf; | |
| 5263 ml_upd_lastline = line; | |
| 5264 ml_upd_lastcurline = curline; | |
| 5265 ml_upd_lastcurix = curix; | |
| 5266 } | |
| 5267 | |
| 5268 /* | |
| 5269 * Find offset for line or line with offset. | |
| 169 | 5270 * Find line with offset if "lnum" is 0; return remaining offset in offp |
| 5271 * Find offset of line if "lnum" > 0 | |
| 7 | 5272 * return -1 if information is not available |
| 5273 */ | |
| 5274 long | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
5275 ml_find_line_or_offset(buf_T *buf, linenr_T lnum, long *offp) |
| 7 | 5276 { |
| 5277 linenr_T curline; | |
| 5278 int curix; | |
| 5279 long size; | |
| 5280 bhdr_T *hp; | |
| 5281 DATA_BL *dp; | |
| 5282 int count; /* number of entries in block */ | |
| 5283 int idx; | |
| 5284 int start_idx; | |
| 5285 int text_end; | |
| 5286 long offset; | |
| 5287 int len; | |
| 5288 int ffdos = (get_fileformat(buf) == EOL_DOS); | |
| 5289 int extra = 0; | |
| 5290 | |
| 169 | 5291 /* take care of cached line first */ |
| 5292 ml_flush_line(curbuf); | |
| 5293 | |
| 7 | 5294 if (buf->b_ml.ml_usedchunks == -1 |
| 5295 || buf->b_ml.ml_chunksize == NULL | |
| 169 | 5296 || lnum < 0) |
| 7 | 5297 return -1; |
| 5298 | |
| 5299 if (offp == NULL) | |
| 5300 offset = 0; | |
| 5301 else | |
| 5302 offset = *offp; | |
| 169 | 5303 if (lnum == 0 && offset <= 0) |
| 7 | 5304 return 1; /* Not a "find offset" and offset 0 _must_ be in line 1 */ |
| 5305 /* | |
| 5306 * Find the last chunk before the one containing our line. Last chunk is | |
| 5307 * special because it will never qualify | |
| 5308 */ | |
| 5309 curline = 1; | |
| 5310 curix = size = 0; | |
| 5311 while (curix < buf->b_ml.ml_usedchunks - 1 | |
| 169 | 5312 && ((lnum != 0 |
| 5313 && lnum >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines) | |
| 7 | 5314 || (offset != 0 |
| 5315 && offset > size + buf->b_ml.ml_chunksize[curix].mlcs_totalsize | |
| 5316 + ffdos * buf->b_ml.ml_chunksize[curix].mlcs_numlines))) | |
| 5317 { | |
| 5318 curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5319 size += buf->b_ml.ml_chunksize[curix].mlcs_totalsize; | |
| 5320 if (offset && ffdos) | |
| 5321 size += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5322 curix++; | |
| 5323 } | |
| 5324 | |
| 169 | 5325 while ((lnum != 0 && curline < lnum) || (offset != 0 && size < offset)) |
| 7 | 5326 { |
| 5327 if (curline > buf->b_ml.ml_line_count | |
| 5328 || (hp = ml_find_line(buf, curline, ML_FIND)) == NULL) | |
| 5329 return -1; | |
| 5330 dp = (DATA_BL *)(hp->bh_data); | |
| 5331 count = (long)(buf->b_ml.ml_locked_high) - | |
| 5332 (long)(buf->b_ml.ml_locked_low) + 1; | |
| 5333 start_idx = idx = curline - buf->b_ml.ml_locked_low; | |
| 5334 if (idx == 0)/* first line in block, text at the end */ | |
| 5335 text_end = dp->db_txt_end; | |
| 5336 else | |
| 5337 text_end = ((dp->db_index[idx - 1]) & DB_INDEX_MASK); | |
| 5338 /* Compute index of last line to use in this MEMLINE */ | |
| 169 | 5339 if (lnum != 0) |
| 7 | 5340 { |
| 169 | 5341 if (curline + (count - idx) >= lnum) |
| 5342 idx += lnum - curline - 1; | |
| 7 | 5343 else |
| 5344 idx = count - 1; | |
| 5345 } | |
| 5346 else | |
| 5347 { | |
| 5348 extra = 0; | |
| 5349 while (offset >= size | |
| 5350 + text_end - (int)((dp->db_index[idx]) & DB_INDEX_MASK) | |
| 5351 + ffdos) | |
| 5352 { | |
| 5353 if (ffdos) | |
| 5354 size++; | |
| 5355 if (idx == count - 1) | |
| 5356 { | |
| 5357 extra = 1; | |
| 5358 break; | |
| 5359 } | |
| 5360 idx++; | |
| 5361 } | |
| 5362 } | |
| 5363 len = text_end - ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 5364 size += len; | |
| 5365 if (offset != 0 && size >= offset) | |
| 5366 { | |
| 5367 if (size + ffdos == offset) | |
| 5368 *offp = 0; | |
| 5369 else if (idx == start_idx) | |
| 5370 *offp = offset - size + len; | |
| 5371 else | |
| 5372 *offp = offset - size + len | |
| 5373 - (text_end - ((dp->db_index[idx - 1]) & DB_INDEX_MASK)); | |
| 5374 curline += idx - start_idx + extra; | |
| 5375 if (curline > buf->b_ml.ml_line_count) | |
| 5376 return -1; /* exactly one byte beyond the end */ | |
| 5377 return curline; | |
| 5378 } | |
| 5379 curline = buf->b_ml.ml_locked_high + 1; | |
| 5380 } | |
| 5381 | |
| 169 | 5382 if (lnum != 0) |
| 20 | 5383 { |
| 5384 /* Count extra CR characters. */ | |
| 5385 if (ffdos) | |
| 169 | 5386 size += lnum - 1; |
| 20 | 5387 |
| 6933 | 5388 /* Don't count the last line break if 'noeol' and ('bin' or |
| 5389 * 'nofixeol'). */ | |
| 5390 if ((!buf->b_p_fixeol || buf->b_p_bin) && !buf->b_p_eol | |
|
14579
23d6d9e9ae3e
patch 8.1.0303: line2byte() is wrong for last line with 'noeol'
Christian Brabandt <cb@256bit.org>
parents:
14475
diff
changeset
|
5391 && lnum > buf->b_ml.ml_line_count) |
| 20 | 5392 size -= ffdos + 1; |
| 5393 } | |
| 5394 | |
| 7 | 5395 return size; |
| 5396 } | |
| 5397 | |
| 5398 /* | |
| 5399 * Goto byte in buffer with offset 'cnt'. | |
| 5400 */ | |
| 5401 void | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
5402 goto_byte(long cnt) |
| 7 | 5403 { |
| 5404 long boff = cnt; | |
| 5405 linenr_T lnum; | |
| 5406 | |
| 5407 ml_flush_line(curbuf); /* cached line may be dirty */ | |
| 5408 setpcmark(); | |
| 5409 if (boff) | |
| 5410 --boff; | |
| 5411 lnum = ml_find_line_or_offset(curbuf, (linenr_T)0, &boff); | |
| 5412 if (lnum < 1) /* past the end */ | |
| 5413 { | |
| 5414 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count; | |
| 5415 curwin->w_curswant = MAXCOL; | |
| 5416 coladvance((colnr_T)MAXCOL); | |
| 5417 } | |
| 5418 else | |
| 5419 { | |
| 5420 curwin->w_cursor.lnum = lnum; | |
| 5421 curwin->w_cursor.col = (colnr_T)boff; | |
| 572 | 5422 # ifdef FEAT_VIRTUALEDIT |
| 5423 curwin->w_cursor.coladd = 0; | |
| 5424 # endif | |
| 7 | 5425 curwin->w_set_curswant = TRUE; |
| 5426 } | |
| 5427 check_cursor(); | |
| 5428 | |
| 5429 # ifdef FEAT_MBYTE | |
| 5430 /* Make sure the cursor is on the first byte of a multi-byte char. */ | |
| 5431 if (has_mbyte) | |
| 5432 mb_adjust_cursor(); | |
| 5433 # endif | |
| 5434 } | |
| 5435 #endif |