Mercurial > vim
annotate src/memline.c @ 12975:e311187347c1 v8.0.1363
patch 8.0.1363: recovering does not work when swap file ends in .stz
commit https://github.com/vim/vim/commit/af903e5d490ec9c6c49079f67de7e92e3c35a725
Author: Bram Moolenaar <Bram@vim.org>
Date: Sat Dec 2 15:11:22 2017 +0100
patch 8.0.1363: recovering does not work when swap file ends in .stz
Problem: Recovering does not work when swap file ends in .stz.
Solution: Check for all possible swap file names. (Elfling, closes https://github.com/vim/vim/issues/2395,
closes #2396)
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Sat, 02 Dec 2017 15:15:05 +0100 |
| parents | 68d7bc045dbe |
| children | ac42c4b11dbc |
| 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 */ | |
| 11 /* #define CHECK(c, s) if (c) EMSG(s) */ | |
| 12 #define CHECK(c, s) | |
| 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_mfp_crypt(buf_T *buf); |
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239 static void ml_set_b0_crypt(buf_T *buf, ZERO_BL *b0p); |
| 2267 | 240 #endif |
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241 static int ml_check_b0_id(ZERO_BL *b0p); |
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242 static void ml_upd_block0(buf_T *buf, upd_block0_T what); |
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243 static void set_b0_fname(ZERO_BL *, buf_T *buf); |
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244 static void set_b0_dir_flag(ZERO_BL *b0p, buf_T *buf); |
| 39 | 245 #ifdef FEAT_MBYTE |
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246 static void add_b0_fenc(ZERO_BL *b0p, buf_T *buf); |
| 39 | 247 #endif |
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248 static time_t swapfile_info(char_u *); |
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249 static int recov_file_names(char_u **, char_u *, int prepend_dot); |
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250 static int ml_append_int(buf_T *, linenr_T, char_u *, colnr_T, int, int); |
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251 static int ml_delete_int(buf_T *, linenr_T, int); |
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252 static char_u *findswapname(buf_T *, char_u **, char_u *); |
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253 static void ml_flush_line(buf_T *); |
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254 static bhdr_T *ml_new_data(memfile_T *, int, int); |
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255 static bhdr_T *ml_new_ptr(memfile_T *); |
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256 static bhdr_T *ml_find_line(buf_T *, linenr_T, int); |
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257 static int ml_add_stack(buf_T *); |
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258 static void ml_lineadd(buf_T *, int); |
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259 static int b0_magic_wrong(ZERO_BL *); |
| 7 | 260 #ifdef CHECK_INODE |
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261 static int fnamecmp_ino(char_u *, char_u *, long); |
| 7 | 262 #endif |
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263 static void long_to_char(long, char_u *); |
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264 static long char_to_long(char_u *); |
| 7 | 265 #if defined(UNIX) || defined(WIN3264) |
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266 static char_u *make_percent_swname(char_u *dir, char_u *name); |
| 7 | 267 #endif |
| 2267 | 268 #ifdef FEAT_CRYPT |
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269 static cryptstate_T *ml_crypt_prepare(memfile_T *mfp, off_T offset, int reading); |
| 2267 | 270 #endif |
| 7 | 271 #ifdef FEAT_BYTEOFF |
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272 static void ml_updatechunk(buf_T *buf, long line, long len, int updtype); |
| 7 | 273 #endif |
| 274 | |
| 275 /* | |
| 625 | 276 * Open a new memline for "buf". |
| 7 | 277 * |
| 625 | 278 * Return FAIL for failure, OK otherwise. |
| 7 | 279 */ |
| 280 int | |
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281 ml_open(buf_T *buf) |
| 7 | 282 { |
| 283 memfile_T *mfp; | |
| 284 bhdr_T *hp = NULL; | |
| 285 ZERO_BL *b0p; | |
| 286 PTR_BL *pp; | |
| 287 DATA_BL *dp; | |
| 288 | |
| 625 | 289 /* |
| 290 * init fields in memline struct | |
| 291 */ | |
| 2267 | 292 buf->b_ml.ml_stack_size = 0; /* no stack yet */ |
| 625 | 293 buf->b_ml.ml_stack = NULL; /* no stack yet */ |
| 294 buf->b_ml.ml_stack_top = 0; /* nothing in the stack */ | |
| 295 buf->b_ml.ml_locked = NULL; /* no cached block */ | |
| 296 buf->b_ml.ml_line_lnum = 0; /* no cached line */ | |
| 7 | 297 #ifdef FEAT_BYTEOFF |
| 625 | 298 buf->b_ml.ml_chunksize = NULL; |
| 7 | 299 #endif |
| 300 | |
| 5737 | 301 if (cmdmod.noswapfile) |
| 302 buf->b_p_swf = FALSE; | |
| 303 | |
| 625 | 304 /* |
| 305 * When 'updatecount' is non-zero swap file may be opened later. | |
| 306 */ | |
| 307 if (p_uc && buf->b_p_swf) | |
| 308 buf->b_may_swap = TRUE; | |
| 7 | 309 else |
| 625 | 310 buf->b_may_swap = FALSE; |
| 311 | |
| 312 /* | |
| 313 * Open the memfile. No swap file is created yet. | |
| 314 */ | |
| 7 | 315 mfp = mf_open(NULL, 0); |
| 316 if (mfp == NULL) | |
| 317 goto error; | |
| 318 | |
| 625 | 319 buf->b_ml.ml_mfp = mfp; |
| 2267 | 320 #ifdef FEAT_CRYPT |
| 321 mfp->mf_buffer = buf; | |
| 322 #endif | |
| 625 | 323 buf->b_ml.ml_flags = ML_EMPTY; |
| 324 buf->b_ml.ml_line_count = 1; | |
| 13 | 325 #ifdef FEAT_LINEBREAK |
| 326 curwin->w_nrwidth_line_count = 0; | |
| 327 #endif | |
| 7 | 328 |
| 329 /* | |
| 330 * fill block0 struct and write page 0 | |
| 331 */ | |
| 332 if ((hp = mf_new(mfp, FALSE, 1)) == NULL) | |
| 333 goto error; | |
| 334 if (hp->bh_bnum != 0) | |
| 335 { | |
|
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
336 IEMSG(_("E298: Didn't get block nr 0?")); |
| 7 | 337 goto error; |
| 338 } | |
| 339 b0p = (ZERO_BL *)(hp->bh_data); | |
| 340 | |
| 341 b0p->b0_id[0] = BLOCK0_ID0; | |
| 342 b0p->b0_id[1] = BLOCK0_ID1; | |
| 343 b0p->b0_magic_long = (long)B0_MAGIC_LONG; | |
| 344 b0p->b0_magic_int = (int)B0_MAGIC_INT; | |
| 345 b0p->b0_magic_short = (short)B0_MAGIC_SHORT; | |
| 346 b0p->b0_magic_char = B0_MAGIC_CHAR; | |
| 347 STRNCPY(b0p->b0_version, "VIM ", 4); | |
| 348 STRNCPY(b0p->b0_version + 4, Version, 6); | |
| 349 long_to_char((long)mfp->mf_page_size, b0p->b0_page_size); | |
| 625 | 350 |
| 800 | 351 #ifdef FEAT_SPELL |
| 352 if (!buf->b_spell) | |
| 353 #endif | |
| 625 | 354 { |
| 355 b0p->b0_dirty = buf->b_changed ? B0_DIRTY : 0; | |
| 356 b0p->b0_flags = get_fileformat(buf) + 1; | |
| 357 set_b0_fname(b0p, buf); | |
| 358 (void)get_user_name(b0p->b0_uname, B0_UNAME_SIZE); | |
| 359 b0p->b0_uname[B0_UNAME_SIZE - 1] = NUL; | |
| 360 mch_get_host_name(b0p->b0_hname, B0_HNAME_SIZE); | |
| 361 b0p->b0_hname[B0_HNAME_SIZE - 1] = NUL; | |
| 362 long_to_char(mch_get_pid(), b0p->b0_pid); | |
| 2267 | 363 #ifdef FEAT_CRYPT |
| 6122 | 364 ml_set_b0_crypt(buf, b0p); |
| 2267 | 365 #endif |
| 625 | 366 } |
| 7 | 367 |
| 368 /* | |
| 369 * Always sync block number 0 to disk, so we can check the file name in | |
| 2267 | 370 * the swap file in findswapname(). Don't do this for a help files or |
| 371 * a spell buffer though. | |
| 7 | 372 * Only works when there's a swapfile, otherwise it's done when the file |
| 373 * is created. | |
| 374 */ | |
| 375 mf_put(mfp, hp, TRUE, FALSE); | |
| 625 | 376 if (!buf->b_help && !B_SPELL(buf)) |
| 7 | 377 (void)mf_sync(mfp, 0); |
| 378 | |
| 625 | 379 /* |
| 380 * Fill in root pointer block and write page 1. | |
| 381 */ | |
| 7 | 382 if ((hp = ml_new_ptr(mfp)) == NULL) |
| 383 goto error; | |
| 384 if (hp->bh_bnum != 1) | |
| 385 { | |
|
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
386 IEMSG(_("E298: Didn't get block nr 1?")); |
| 7 | 387 goto error; |
| 388 } | |
| 389 pp = (PTR_BL *)(hp->bh_data); | |
| 390 pp->pb_count = 1; | |
| 391 pp->pb_pointer[0].pe_bnum = 2; | |
| 392 pp->pb_pointer[0].pe_page_count = 1; | |
| 393 pp->pb_pointer[0].pe_old_lnum = 1; | |
| 394 pp->pb_pointer[0].pe_line_count = 1; /* line count after insertion */ | |
| 395 mf_put(mfp, hp, TRUE, FALSE); | |
| 396 | |
| 625 | 397 /* |
| 398 * Allocate first data block and create an empty line 1. | |
| 399 */ | |
| 7 | 400 if ((hp = ml_new_data(mfp, FALSE, 1)) == NULL) |
| 401 goto error; | |
| 402 if (hp->bh_bnum != 2) | |
| 403 { | |
|
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
404 IEMSG(_("E298: Didn't get block nr 2?")); |
| 7 | 405 goto error; |
| 406 } | |
| 407 | |
| 408 dp = (DATA_BL *)(hp->bh_data); | |
| 409 dp->db_index[0] = --dp->db_txt_start; /* at end of block */ | |
| 410 dp->db_free -= 1 + INDEX_SIZE; | |
| 411 dp->db_line_count = 1; | |
| 2003 | 412 *((char_u *)dp + dp->db_txt_start) = NUL; /* empty line */ |
| 7 | 413 |
| 414 return OK; | |
| 415 | |
| 416 error: | |
| 417 if (mfp != NULL) | |
| 418 { | |
| 419 if (hp) | |
| 420 mf_put(mfp, hp, FALSE, FALSE); | |
| 421 mf_close(mfp, TRUE); /* will also free(mfp->mf_fname) */ | |
| 422 } | |
| 625 | 423 buf->b_ml.ml_mfp = NULL; |
| 7 | 424 return FAIL; |
| 425 } | |
| 426 | |
| 2267 | 427 #if defined(FEAT_CRYPT) || defined(PROTO) |
| 428 /* | |
| 6130 | 429 * Prepare encryption for "buf" for the current key and method. |
| 430 */ | |
| 431 static void | |
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
432 ml_set_mfp_crypt(buf_T *buf) |
| 6130 | 433 { |
| 434 if (*buf->b_p_key != NUL) | |
| 435 { | |
| 436 int method_nr = crypt_get_method_nr(buf); | |
| 437 | |
| 438 if (method_nr > CRYPT_M_ZIP) | |
| 439 { | |
| 440 /* Generate a seed and store it in the memfile. */ | |
| 441 sha2_seed(buf->b_ml.ml_mfp->mf_seed, MF_SEED_LEN, NULL, 0); | |
| 442 } | |
| 443 } | |
| 444 } | |
| 445 | |
| 446 /* | |
| 2267 | 447 * Prepare encryption for "buf" with block 0 "b0p". |
| 448 */ | |
| 449 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
|
450 ml_set_b0_crypt(buf_T *buf, ZERO_BL *b0p) |
| 2267 | 451 { |
| 452 if (*buf->b_p_key == NUL) | |
| 453 b0p->b0_id[1] = BLOCK0_ID1; | |
| 454 else | |
| 455 { | |
| 6122 | 456 int method_nr = crypt_get_method_nr(buf); |
| 457 | |
| 458 b0p->b0_id[1] = id1_codes[method_nr]; | |
| 459 if (method_nr > CRYPT_M_ZIP) | |
| 2267 | 460 { |
| 461 /* Generate a seed and store it in block 0 and in the memfile. */ | |
| 462 sha2_seed(&b0p->b0_seed, MF_SEED_LEN, NULL, 0); | |
| 463 mch_memmove(buf->b_ml.ml_mfp->mf_seed, &b0p->b0_seed, MF_SEED_LEN); | |
| 464 } | |
| 465 } | |
| 466 } | |
| 467 | |
| 468 /* | |
| 469 * Called after the crypt key or 'cryptmethod' was changed for "buf". | |
| 470 * Will apply this to the swapfile. | |
| 471 * "old_key" is the previous key. It is equal to buf->b_p_key when | |
| 472 * 'cryptmethod' is changed. | |
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|
473 * "old_cm" is the previous 'cryptmethod'. It is equal to the current |
|
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Change 'cryptmethod' from a number to a string option. Make it global-local.
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diff
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|
474 * 'cryptmethod' when 'key' is changed. |
| 2267 | 475 */ |
| 476 void | |
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
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diff
changeset
|
477 ml_set_crypt_key( |
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41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
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|
478 buf_T *buf, |
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41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
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parents:
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diff
changeset
|
479 char_u *old_key, |
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41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
480 char_u *old_cm) |
| 2267 | 481 { |
| 482 memfile_T *mfp = buf->b_ml.ml_mfp; | |
| 483 bhdr_T *hp; | |
| 484 int page_count; | |
| 485 int idx; | |
| 486 long error; | |
| 487 infoptr_T *ip; | |
| 488 PTR_BL *pp; | |
| 489 DATA_BL *dp; | |
| 490 blocknr_T bnum; | |
| 491 int top; | |
| 6817 | 492 int old_method; |
| 2267 | 493 |
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Bram Moolenaar <bram@vim.org>
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diff
changeset
|
494 if (mfp == NULL) |
| 2267 | 495 return; /* no memfile yet, nothing to do */ |
| 6817 | 496 old_method = crypt_method_nr_from_name(old_cm); |
| 497 | |
| 498 /* First make sure the swapfile is in a consistent state, using the old | |
| 499 * key and method. */ | |
| 500 { | |
| 501 char_u *new_key = buf->b_p_key; | |
| 502 char_u *new_buf_cm = buf->b_p_cm; | |
| 503 | |
| 504 buf->b_p_key = old_key; | |
| 505 buf->b_p_cm = old_cm; | |
| 506 ml_preserve(buf, FALSE); | |
| 507 buf->b_p_key = new_key; | |
| 508 buf->b_p_cm = new_buf_cm; | |
| 509 } | |
| 2267 | 510 |
| 511 /* Set the key, method and seed to be used for reading, these must be the | |
| 512 * old values. */ | |
| 513 mfp->mf_old_key = old_key; | |
| 6817 | 514 mfp->mf_old_cm = old_method; |
| 515 if (old_method > 0 && *old_key != NUL) | |
| 2267 | 516 mch_memmove(mfp->mf_old_seed, mfp->mf_seed, MF_SEED_LEN); |
| 517 | |
| 518 /* Update block 0 with the crypt flag and may set a new seed. */ | |
| 519 ml_upd_block0(buf, UB_CRYPT); | |
| 520 | |
| 521 if (mfp->mf_infile_count > 2) | |
| 522 { | |
| 523 /* | |
| 524 * Need to read back all data blocks from disk, decrypt them with the | |
| 525 * old key/method and mark them to be written. The algorithm is | |
| 526 * similar to what happens in ml_recover(), but we skip negative block | |
| 527 * numbers. | |
| 528 */ | |
| 529 ml_flush_line(buf); /* flush buffered line */ | |
| 530 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush locked block */ | |
| 531 | |
| 532 hp = NULL; | |
| 533 bnum = 1; /* start with block 1 */ | |
| 534 page_count = 1; /* which is 1 page */ | |
| 535 idx = 0; /* start with first index in block 1 */ | |
| 536 error = 0; | |
| 537 buf->b_ml.ml_stack_top = 0; | |
|
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diff
changeset
|
538 vim_free(buf->b_ml.ml_stack); |
| 2267 | 539 buf->b_ml.ml_stack = NULL; |
| 540 buf->b_ml.ml_stack_size = 0; /* no stack yet */ | |
| 541 | |
| 542 for ( ; !got_int; line_breakcheck()) | |
| 543 { | |
| 544 if (hp != NULL) | |
| 545 mf_put(mfp, hp, FALSE, FALSE); /* release previous block */ | |
| 546 | |
| 547 /* get the block (pointer or data) */ | |
| 548 if ((hp = mf_get(mfp, (blocknr_T)bnum, page_count)) == NULL) | |
| 549 { | |
| 550 if (bnum == 1) | |
| 551 break; | |
| 552 ++error; | |
| 553 } | |
| 554 else | |
| 555 { | |
| 556 pp = (PTR_BL *)(hp->bh_data); | |
| 557 if (pp->pb_id == PTR_ID) /* it is a pointer block */ | |
| 558 { | |
| 559 if (pp->pb_count == 0) | |
| 560 { | |
| 561 /* empty block? */ | |
| 562 ++error; | |
| 563 } | |
| 564 else if (idx < (int)pp->pb_count) /* go a block deeper */ | |
| 565 { | |
| 566 if (pp->pb_pointer[idx].pe_bnum < 0) | |
| 567 { | |
| 6817 | 568 /* Skip data block with negative block number. |
| 569 * Should not happen, because of the ml_preserve() | |
| 570 * above. Get same block again for next index. */ | |
| 571 ++idx; | |
| 2267 | 572 continue; |
| 573 } | |
| 574 | |
| 575 /* going one block deeper in the tree, new entry in | |
| 576 * stack */ | |
| 577 if ((top = ml_add_stack(buf)) < 0) | |
| 578 { | |
| 579 ++error; | |
| 580 break; /* out of memory */ | |
| 581 } | |
| 582 ip = &(buf->b_ml.ml_stack[top]); | |
| 583 ip->ip_bnum = bnum; | |
| 584 ip->ip_index = idx; | |
| 585 | |
| 586 bnum = pp->pb_pointer[idx].pe_bnum; | |
| 587 page_count = pp->pb_pointer[idx].pe_page_count; | |
| 6817 | 588 idx = 0; |
| 2267 | 589 continue; |
| 590 } | |
| 591 } | |
| 592 else /* not a pointer block */ | |
| 593 { | |
| 594 dp = (DATA_BL *)(hp->bh_data); | |
| 595 if (dp->db_id != DATA_ID) /* block id wrong */ | |
| 596 ++error; | |
| 597 else | |
| 598 { | |
| 599 /* It is a data block, need to write it back to disk. */ | |
| 600 mf_put(mfp, hp, TRUE, FALSE); | |
| 601 hp = NULL; | |
| 602 } | |
| 603 } | |
| 604 } | |
| 605 | |
| 606 if (buf->b_ml.ml_stack_top == 0) /* finished */ | |
| 607 break; | |
| 608 | |
| 609 /* go one block up in the tree */ | |
| 610 ip = &(buf->b_ml.ml_stack[--(buf->b_ml.ml_stack_top)]); | |
| 611 bnum = ip->ip_bnum; | |
| 612 idx = ip->ip_index + 1; /* go to next index */ | |
| 613 page_count = 1; | |
| 614 } | |
| 6817 | 615 if (hp != NULL) |
| 616 mf_put(mfp, hp, FALSE, FALSE); /* release previous block */ | |
| 2657 | 617 |
| 618 if (error > 0) | |
| 619 EMSG(_("E843: Error while updating swap file crypt")); | |
| 2267 | 620 } |
| 621 | |
| 622 mfp->mf_old_key = NULL; | |
| 623 } | |
| 624 #endif | |
| 625 | |
| 7 | 626 /* |
| 627 * ml_setname() is called when the file name of "buf" has been changed. | |
| 628 * It may rename the swap file. | |
| 629 */ | |
| 630 void | |
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
631 ml_setname(buf_T *buf) |
| 7 | 632 { |
| 633 int success = FALSE; | |
| 634 memfile_T *mfp; | |
| 635 char_u *fname; | |
| 636 char_u *dirp; | |
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commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
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parents:
7961
diff
changeset
|
637 #if defined(MSWIN) |
| 7 | 638 char_u *p; |
| 639 #endif | |
| 640 | |
| 641 mfp = buf->b_ml.ml_mfp; | |
| 642 if (mfp->mf_fd < 0) /* there is no swap file yet */ | |
| 643 { | |
| 644 /* | |
| 645 * When 'updatecount' is 0 and 'noswapfile' there is no swap file. | |
| 646 * For help files we will make a swap file now. | |
| 647 */ | |
| 5737 | 648 if (p_uc != 0 && !cmdmod.noswapfile) |
| 7 | 649 ml_open_file(buf); /* create a swap file */ |
| 650 return; | |
| 651 } | |
| 652 | |
| 653 /* | |
| 654 * Try all directories in the 'directory' option. | |
| 655 */ | |
| 656 dirp = p_dir; | |
| 657 for (;;) | |
| 658 { | |
| 659 if (*dirp == NUL) /* tried all directories, fail */ | |
| 660 break; | |
| 43 | 661 fname = findswapname(buf, &dirp, mfp->mf_fname); |
| 662 /* alloc's fname */ | |
| 3158 | 663 if (dirp == NULL) /* out of memory */ |
| 664 break; | |
| 7 | 665 if (fname == NULL) /* no file name found for this dir */ |
| 666 continue; | |
| 667 | |
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commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
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parents:
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diff
changeset
|
668 #if defined(MSWIN) |
| 7 | 669 /* |
| 670 * Set full pathname for swap file now, because a ":!cd dir" may | |
| 671 * change directory without us knowing it. | |
| 672 */ | |
| 673 p = FullName_save(fname, FALSE); | |
| 674 vim_free(fname); | |
| 675 fname = p; | |
| 676 if (fname == NULL) | |
| 677 continue; | |
| 678 #endif | |
| 679 /* if the file name is the same we don't have to do anything */ | |
| 680 if (fnamecmp(fname, mfp->mf_fname) == 0) | |
| 681 { | |
| 682 vim_free(fname); | |
| 683 success = TRUE; | |
| 684 break; | |
| 685 } | |
| 686 /* need to close the swap file before renaming */ | |
| 687 if (mfp->mf_fd >= 0) | |
| 688 { | |
| 689 close(mfp->mf_fd); | |
| 690 mfp->mf_fd = -1; | |
| 691 } | |
| 692 | |
| 693 /* try to rename the swap file */ | |
| 694 if (vim_rename(mfp->mf_fname, fname) == 0) | |
| 695 { | |
| 696 success = TRUE; | |
| 697 vim_free(mfp->mf_fname); | |
| 698 mfp->mf_fname = fname; | |
| 699 vim_free(mfp->mf_ffname); | |
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commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
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parents:
7961
diff
changeset
|
700 #if defined(MSWIN) |
| 7 | 701 mfp->mf_ffname = NULL; /* mf_fname is full pathname already */ |
| 702 #else | |
| 703 mf_set_ffname(mfp); | |
| 704 #endif | |
| 2267 | 705 ml_upd_block0(buf, UB_SAME_DIR); |
| 7 | 706 break; |
| 707 } | |
| 708 vim_free(fname); /* this fname didn't work, try another */ | |
| 709 } | |
| 710 | |
| 711 if (mfp->mf_fd == -1) /* need to (re)open the swap file */ | |
| 712 { | |
| 713 mfp->mf_fd = mch_open((char *)mfp->mf_fname, O_RDWR | O_EXTRA, 0); | |
| 714 if (mfp->mf_fd < 0) | |
| 715 { | |
| 716 /* could not (re)open the swap file, what can we do???? */ | |
| 717 EMSG(_("E301: Oops, lost the swap file!!!")); | |
| 718 return; | |
| 719 } | |
| 2003 | 720 #ifdef HAVE_FD_CLOEXEC |
| 721 { | |
| 722 int fdflags = fcntl(mfp->mf_fd, F_GETFD); | |
| 723 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
|
724 (void)fcntl(mfp->mf_fd, F_SETFD, fdflags | FD_CLOEXEC); |
| 2003 | 725 } |
| 726 #endif | |
| 7 | 727 } |
| 728 if (!success) | |
| 729 EMSG(_("E302: Could not rename swap file")); | |
| 730 } | |
| 731 | |
| 732 /* | |
| 733 * Open a file for the memfile for all buffers that are not readonly or have | |
| 734 * been modified. | |
| 735 * Used when 'updatecount' changes from zero to non-zero. | |
| 736 */ | |
| 737 void | |
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
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parents:
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diff
changeset
|
738 ml_open_files(void) |
| 7 | 739 { |
| 740 buf_T *buf; | |
| 741 | |
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commit https://github.com/vim/vim/commit/2932359000b2f918d5fade79ea4d124d5943cd07
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parents:
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diff
changeset
|
742 FOR_ALL_BUFFERS(buf) |
| 7 | 743 if (!buf->b_p_ro || buf->b_changed) |
| 744 ml_open_file(buf); | |
| 745 } | |
| 746 | |
| 747 /* | |
| 748 * Open a swap file for an existing memfile, if there is no swap file yet. | |
| 749 * If we are unable to find a file name, mf_fname will be NULL | |
| 750 * and the memfile will be in memory only (no recovery possible). | |
| 751 */ | |
| 752 void | |
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
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parents:
7803
diff
changeset
|
753 ml_open_file(buf_T *buf) |
| 7 | 754 { |
| 755 memfile_T *mfp; | |
| 756 char_u *fname; | |
| 757 char_u *dirp; | |
| 758 | |
| 759 mfp = buf->b_ml.ml_mfp; | |
| 5737 | 760 if (mfp == NULL || mfp->mf_fd >= 0 || !buf->b_p_swf || cmdmod.noswapfile) |
| 7 | 761 return; /* nothing to do */ |
| 762 | |
| 748 | 763 #ifdef FEAT_SPELL |
| 625 | 764 /* For a spell buffer use a temp file name. */ |
| 765 if (buf->b_spell) | |
| 766 { | |
| 6721 | 767 fname = vim_tempname('s', FALSE); |
| 625 | 768 if (fname != NULL) |
| 769 (void)mf_open_file(mfp, fname); /* consumes fname! */ | |
| 770 buf->b_may_swap = FALSE; | |
| 771 return; | |
| 772 } | |
| 773 #endif | |
| 774 | |
| 7 | 775 /* |
| 776 * Try all directories in 'directory' option. | |
| 777 */ | |
| 778 dirp = p_dir; | |
| 779 for (;;) | |
| 780 { | |
| 781 if (*dirp == NUL) | |
| 782 break; | |
|
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783 /* There is a small chance that between choosing the swap file name |
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784 * and creating it, another Vim creates the file. In that case the |
| 7 | 785 * creation will fail and we will use another directory. */ |
| 43 | 786 fname = findswapname(buf, &dirp, NULL); /* allocates fname */ |
| 3158 | 787 if (dirp == NULL) |
| 788 break; /* out of memory */ | |
| 7 | 789 if (fname == NULL) |
| 790 continue; | |
| 791 if (mf_open_file(mfp, fname) == OK) /* consumes fname! */ | |
| 792 { | |
|
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793 #if defined(MSWIN) |
| 7 | 794 /* |
| 795 * set full pathname for swap file now, because a ":!cd dir" may | |
| 796 * change directory without us knowing it. | |
| 797 */ | |
| 798 mf_fullname(mfp); | |
| 799 #endif | |
| 2267 | 800 ml_upd_block0(buf, UB_SAME_DIR); |
| 39 | 801 |
| 7 | 802 /* Flush block zero, so others can read it */ |
| 803 if (mf_sync(mfp, MFS_ZERO) == OK) | |
| 630 | 804 { |
| 805 /* Mark all blocks that should be in the swapfile as dirty. | |
| 806 * Needed for when the 'swapfile' option was reset, so that | |
| 807 * the swap file was deleted, and then on again. */ | |
| 808 mf_set_dirty(mfp); | |
| 7 | 809 break; |
| 630 | 810 } |
| 7 | 811 /* Writing block 0 failed: close the file and try another dir */ |
| 812 mf_close_file(buf, FALSE); | |
| 813 } | |
| 814 } | |
| 815 | |
| 816 if (mfp->mf_fname == NULL) /* Failed! */ | |
| 817 { | |
| 818 need_wait_return = TRUE; /* call wait_return later */ | |
| 819 ++no_wait_return; | |
| 820 (void)EMSG2(_("E303: Unable to open swap file for \"%s\", recovery impossible"), | |
| 3839 | 821 buf_spname(buf) != NULL ? buf_spname(buf) : buf->b_fname); |
| 7 | 822 --no_wait_return; |
| 823 } | |
| 824 | |
| 825 /* don't try to open a swap file again */ | |
| 826 buf->b_may_swap = FALSE; | |
| 827 } | |
| 828 | |
| 829 /* | |
| 830 * If still need to create a swap file, and starting to edit a not-readonly | |
| 831 * file, or reading into an existing buffer, create a swap file now. | |
| 832 */ | |
| 833 void | |
|
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834 check_need_swap( |
|
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835 int newfile) /* reading file into new buffer */ |
| 7 | 836 { |
| 837 if (curbuf->b_may_swap && (!curbuf->b_p_ro || !newfile)) | |
| 838 ml_open_file(curbuf); | |
| 839 } | |
| 840 | |
| 841 /* | |
| 842 * Close memline for buffer 'buf'. | |
| 843 * If 'del_file' is TRUE, delete the swap file | |
| 844 */ | |
| 845 void | |
|
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846 ml_close(buf_T *buf, int del_file) |
| 7 | 847 { |
| 848 if (buf->b_ml.ml_mfp == NULL) /* not open */ | |
| 849 return; | |
| 850 mf_close(buf->b_ml.ml_mfp, del_file); /* close the .swp file */ | |
| 851 if (buf->b_ml.ml_line_lnum != 0 && (buf->b_ml.ml_flags & ML_LINE_DIRTY)) | |
| 852 vim_free(buf->b_ml.ml_line_ptr); | |
| 853 vim_free(buf->b_ml.ml_stack); | |
| 854 #ifdef FEAT_BYTEOFF | |
| 855 vim_free(buf->b_ml.ml_chunksize); | |
| 856 buf->b_ml.ml_chunksize = NULL; | |
| 857 #endif | |
| 858 buf->b_ml.ml_mfp = NULL; | |
| 859 | |
| 860 /* Reset the "recovered" flag, give the ATTENTION prompt the next time | |
| 861 * this buffer is loaded. */ | |
| 862 buf->b_flags &= ~BF_RECOVERED; | |
| 863 } | |
| 864 | |
| 865 /* | |
| 866 * Close all existing memlines and memfiles. | |
| 867 * Only used when exiting. | |
| 868 * When 'del_file' is TRUE, delete the memfiles. | |
| 165 | 869 * But don't delete files that were ":preserve"d when we are POSIX compatible. |
| 7 | 870 */ |
| 871 void | |
|
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872 ml_close_all(int del_file) |
| 7 | 873 { |
| 874 buf_T *buf; | |
| 875 | |
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876 FOR_ALL_BUFFERS(buf) |
| 165 | 877 ml_close(buf, del_file && ((buf->b_flags & BF_PRESERVED) == 0 |
| 878 || vim_strchr(p_cpo, CPO_PRESERVE) == NULL)); | |
| 5519 | 879 #ifdef FEAT_SPELL |
| 880 spell_delete_wordlist(); /* delete the internal wordlist */ | |
| 881 #endif | |
| 7 | 882 #ifdef TEMPDIRNAMES |
| 5519 | 883 vim_deltempdir(); /* delete created temp directory */ |
| 7 | 884 #endif |
| 885 } | |
| 886 | |
| 887 /* | |
| 888 * Close all memfiles for not modified buffers. | |
| 889 * Only use just before exiting! | |
| 890 */ | |
| 891 void | |
|
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892 ml_close_notmod(void) |
| 7 | 893 { |
| 894 buf_T *buf; | |
| 895 | |
|
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896 FOR_ALL_BUFFERS(buf) |
| 7 | 897 if (!bufIsChanged(buf)) |
| 898 ml_close(buf, TRUE); /* close all not-modified buffers */ | |
| 899 } | |
| 900 | |
| 901 /* | |
| 902 * Update the timestamp in the .swp file. | |
| 903 * Used when the file has been written. | |
| 904 */ | |
| 905 void | |
|
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906 ml_timestamp(buf_T *buf) |
| 7 | 907 { |
| 2267 | 908 ml_upd_block0(buf, UB_FNAME); |
| 909 } | |
| 910 | |
| 911 /* | |
| 912 * Return FAIL when the ID of "b0p" is wrong. | |
| 913 */ | |
| 914 static int | |
|
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|
915 ml_check_b0_id(ZERO_BL *b0p) |
| 2267 | 916 { |
| 917 if (b0p->b0_id[0] != BLOCK0_ID0 | |
| 918 || (b0p->b0_id[1] != BLOCK0_ID1 | |
| 919 && b0p->b0_id[1] != BLOCK0_ID1_C0 | |
| 6122 | 920 && b0p->b0_id[1] != BLOCK0_ID1_C1 |
| 921 && b0p->b0_id[1] != BLOCK0_ID1_C2) | |
| 2267 | 922 ) |
| 923 return FAIL; | |
| 924 return OK; | |
| 39 | 925 } |
| 926 | |
| 927 /* | |
| 928 * Update the timestamp or the B0_SAME_DIR flag of the .swp file. | |
| 929 */ | |
| 930 static void | |
|
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931 ml_upd_block0(buf_T *buf, upd_block0_T what) |
| 39 | 932 { |
| 7 | 933 memfile_T *mfp; |
| 934 bhdr_T *hp; | |
| 935 ZERO_BL *b0p; | |
| 936 | |
| 937 mfp = buf->b_ml.ml_mfp; | |
| 6130 | 938 if (mfp == NULL) |
| 7 | 939 return; |
| 6130 | 940 hp = mf_get(mfp, (blocknr_T)0, 1); |
| 941 if (hp == NULL) | |
| 942 { | |
| 943 #ifdef FEAT_CRYPT | |
| 944 /* Possibly update the seed in the memfile before there is a block0. */ | |
| 945 if (what == UB_CRYPT) | |
| 946 ml_set_mfp_crypt(buf); | |
| 947 #endif | |
| 948 return; | |
| 949 } | |
| 950 | |
| 7 | 951 b0p = (ZERO_BL *)(hp->bh_data); |
| 2267 | 952 if (ml_check_b0_id(b0p) == FAIL) |
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953 IEMSG(_("E304: ml_upd_block0(): Didn't get block 0??")); |
| 7 | 954 else |
| 39 | 955 { |
| 2267 | 956 if (what == UB_FNAME) |
| 39 | 957 set_b0_fname(b0p, buf); |
| 2267 | 958 #ifdef FEAT_CRYPT |
| 959 else if (what == UB_CRYPT) | |
| 960 ml_set_b0_crypt(buf, b0p); | |
| 961 #endif | |
| 962 else /* what == UB_SAME_DIR */ | |
| 39 | 963 set_b0_dir_flag(b0p, buf); |
| 964 } | |
| 7 | 965 mf_put(mfp, hp, TRUE, FALSE); |
| 966 } | |
| 967 | |
| 968 /* | |
| 969 * Write file name and timestamp into block 0 of a swap file. | |
| 970 * Also set buf->b_mtime. | |
| 971 * Don't use NameBuff[]!!! | |
| 972 */ | |
| 973 static void | |
|
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974 set_b0_fname(ZERO_BL *b0p, buf_T *buf) |
| 7 | 975 { |
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976 stat_T st; |
| 7 | 977 |
| 978 if (buf->b_ffname == NULL) | |
| 979 b0p->b0_fname[0] = NUL; | |
| 980 else | |
| 981 { | |
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982 #if defined(MSWIN) || defined(AMIGA) |
| 39 | 983 /* Systems that cannot translate "~user" back into a path: copy the |
| 984 * file name unmodified. Do use slashes instead of backslashes for | |
| 985 * portability. */ | |
| 2267 | 986 vim_strncpy(b0p->b0_fname, buf->b_ffname, B0_FNAME_SIZE_CRYPT - 1); |
| 39 | 987 # ifdef BACKSLASH_IN_FILENAME |
| 988 forward_slash(b0p->b0_fname); | |
| 989 # endif | |
| 7 | 990 #else |
| 991 size_t flen, ulen; | |
| 992 char_u uname[B0_UNAME_SIZE]; | |
| 993 | |
| 994 /* | |
| 995 * For a file under the home directory of the current user, we try to | |
| 996 * replace the home directory path with "~user". This helps when | |
| 997 * editing the same file on different machines over a network. | |
| 998 * First replace home dir path with "~/" with home_replace(). | |
| 999 * Then insert the user name to get "~user/". | |
| 1000 */ | |
| 2267 | 1001 home_replace(NULL, buf->b_ffname, b0p->b0_fname, |
| 1002 B0_FNAME_SIZE_CRYPT, TRUE); | |
| 7 | 1003 if (b0p->b0_fname[0] == '~') |
| 1004 { | |
| 1005 flen = STRLEN(b0p->b0_fname); | |
| 1006 /* If there is no user name or it is too long, don't use "~/" */ | |
| 1007 if (get_user_name(uname, B0_UNAME_SIZE) == FAIL | |
| 2267 | 1008 || (ulen = STRLEN(uname)) + flen > B0_FNAME_SIZE_CRYPT - 1) |
| 1009 vim_strncpy(b0p->b0_fname, buf->b_ffname, | |
| 1010 B0_FNAME_SIZE_CRYPT - 1); | |
| 7 | 1011 else |
| 1012 { | |
| 1013 mch_memmove(b0p->b0_fname + ulen + 1, b0p->b0_fname + 1, flen); | |
| 1014 mch_memmove(b0p->b0_fname + 1, uname, ulen); | |
| 1015 } | |
| 1016 } | |
| 1017 #endif | |
| 1018 if (mch_stat((char *)buf->b_ffname, &st) >= 0) | |
| 1019 { | |
| 1020 long_to_char((long)st.st_mtime, b0p->b0_mtime); | |
| 1021 #ifdef CHECK_INODE | |
| 1022 long_to_char((long)st.st_ino, b0p->b0_ino); | |
| 1023 #endif | |
| 1024 buf_store_time(buf, &st, buf->b_ffname); | |
| 1025 buf->b_mtime_read = buf->b_mtime; | |
| 1026 } | |
| 1027 else | |
| 1028 { | |
| 1029 long_to_char(0L, b0p->b0_mtime); | |
| 1030 #ifdef CHECK_INODE | |
| 1031 long_to_char(0L, b0p->b0_ino); | |
| 1032 #endif | |
| 1033 buf->b_mtime = 0; | |
| 1034 buf->b_mtime_read = 0; | |
| 1035 buf->b_orig_size = 0; | |
| 1036 buf->b_orig_mode = 0; | |
| 1037 } | |
| 1038 } | |
| 39 | 1039 |
| 1040 #ifdef FEAT_MBYTE | |
| 1041 /* Also add the 'fileencoding' if there is room. */ | |
| 1042 add_b0_fenc(b0p, curbuf); | |
| 1043 #endif | |
| 7 | 1044 } |
| 1045 | |
| 1046 /* | |
| 39 | 1047 * Update the B0_SAME_DIR flag of the swap file. It's set if the file and the |
| 1048 * swapfile for "buf" are in the same directory. | |
| 1049 * This is fail safe: if we are not sure the directories are equal the flag is | |
| 1050 * not set. | |
| 1051 */ | |
| 1052 static void | |
|
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1053 set_b0_dir_flag(ZERO_BL *b0p, buf_T *buf) |
| 39 | 1054 { |
| 1055 if (same_directory(buf->b_ml.ml_mfp->mf_fname, buf->b_ffname)) | |
| 1056 b0p->b0_flags |= B0_SAME_DIR; | |
| 1057 else | |
| 1058 b0p->b0_flags &= ~B0_SAME_DIR; | |
| 1059 } | |
| 1060 | |
| 1061 #ifdef FEAT_MBYTE | |
| 1062 /* | |
| 1063 * When there is room, add the 'fileencoding' to block zero. | |
| 1064 */ | |
| 1065 static void | |
|
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1066 add_b0_fenc( |
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1067 ZERO_BL *b0p, |
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1068 buf_T *buf) |
| 39 | 1069 { |
| 1070 int n; | |
| 2267 | 1071 int size = B0_FNAME_SIZE_NOCRYPT; |
| 1072 | |
| 1073 # ifdef FEAT_CRYPT | |
| 1074 /* Without encryption use the same offset as in Vim 7.2 to be compatible. | |
| 1075 * With encryption it's OK to move elsewhere, the swap file is not | |
| 1076 * compatible anyway. */ | |
| 1077 if (*buf->b_p_key != NUL) | |
| 1078 size = B0_FNAME_SIZE_CRYPT; | |
| 1079 # endif | |
| 39 | 1080 |
| 835 | 1081 n = (int)STRLEN(buf->b_p_fenc); |
| 2267 | 1082 if ((int)STRLEN(b0p->b0_fname) + n + 1 > size) |
| 39 | 1083 b0p->b0_flags &= ~B0_HAS_FENC; |
| 1084 else | |
| 1085 { | |
| 2267 | 1086 mch_memmove((char *)b0p->b0_fname + size - n, |
| 39 | 1087 (char *)buf->b_p_fenc, (size_t)n); |
| 2267 | 1088 *(b0p->b0_fname + size - n - 1) = NUL; |
| 39 | 1089 b0p->b0_flags |= B0_HAS_FENC; |
| 1090 } | |
| 1091 } | |
| 1092 #endif | |
| 1093 | |
| 1094 | |
| 1095 /* | |
| 2267 | 1096 * Try to recover curbuf from the .swp file. |
| 7 | 1097 */ |
| 1098 void | |
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1099 ml_recover(void) |
| 7 | 1100 { |
| 1101 buf_T *buf = NULL; | |
| 1102 memfile_T *mfp = NULL; | |
| 1103 char_u *fname; | |
| 2267 | 1104 char_u *fname_used = NULL; |
| 7 | 1105 bhdr_T *hp = NULL; |
| 1106 ZERO_BL *b0p; | |
| 39 | 1107 int b0_ff; |
| 1108 char_u *b0_fenc = NULL; | |
| 2267 | 1109 #ifdef FEAT_CRYPT |
| 1110 int b0_cm = -1; | |
| 1111 #endif | |
| 7 | 1112 PTR_BL *pp; |
| 1113 DATA_BL *dp; | |
| 1114 infoptr_T *ip; | |
| 1115 blocknr_T bnum; | |
| 1116 int page_count; | |
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1117 stat_T org_stat, swp_stat; |
| 7 | 1118 int len; |
| 1119 int directly; | |
| 1120 linenr_T lnum; | |
| 1121 char_u *p; | |
| 1122 int i; | |
| 1123 long error; | |
| 1124 int cannot_open; | |
| 1125 linenr_T line_count; | |
| 1126 int has_error; | |
| 1127 int idx; | |
| 1128 int top; | |
| 1129 int txt_start; | |
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1130 off_T size; |
| 7 | 1131 int called_from_main; |
| 1132 int serious_error = TRUE; | |
| 1133 long mtime; | |
| 1134 int attr; | |
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1135 int orig_file_status = NOTDONE; |
| 7 | 1136 |
| 1137 recoverymode = TRUE; | |
| 1138 called_from_main = (curbuf->b_ml.ml_mfp == NULL); | |
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1139 attr = HL_ATTR(HLF_E); |
| 1975 | 1140 |
| 1141 /* | |
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1142 * If the file name ends in ".s[a-w][a-z]" we assume this is the swap file. |
| 1975 | 1143 * Otherwise a search is done to find the swap file(s). |
| 1144 */ | |
| 7 | 1145 fname = curbuf->b_fname; |
| 1146 if (fname == NULL) /* When there is no file name */ | |
| 1147 fname = (char_u *)""; | |
| 1148 len = (int)STRLEN(fname); | |
| 1149 if (len >= 4 && | |
| 2823 | 1150 #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
|
1151 STRNICMP(fname + len - 4, "_s", 2) |
| 7 | 1152 #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
|
1153 STRNICMP(fname + len - 4, ".s", 2) |
| 7 | 1154 #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
|
1155 == 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
|
1156 && 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
|
1157 TOLOWER_ASC(fname[len - 2])) != NULL |
| 1975 | 1158 && ASCII_ISALPHA(fname[len - 1])) |
| 7 | 1159 { |
| 1160 directly = TRUE; | |
| 2267 | 1161 fname_used = vim_strsave(fname); /* make a copy for mf_open() */ |
| 7 | 1162 } |
| 1163 else | |
| 1164 { | |
| 1165 directly = FALSE; | |
| 1166 | |
| 1167 /* count the number of matching swap files */ | |
| 2267 | 1168 len = recover_names(fname, FALSE, 0, NULL); |
| 7 | 1169 if (len == 0) /* no swap files found */ |
| 1170 { | |
| 1171 EMSG2(_("E305: No swap file found for %s"), fname); | |
| 1172 goto theend; | |
| 1173 } | |
| 1174 if (len == 1) /* one swap file found, use it */ | |
| 1175 i = 1; | |
| 1176 else /* several swap files found, choose */ | |
| 1177 { | |
| 1178 /* list the names of the swap files */ | |
| 2267 | 1179 (void)recover_names(fname, TRUE, 0, NULL); |
| 7 | 1180 msg_putchar('\n'); |
| 1181 MSG_PUTS(_("Enter number of swap file to use (0 to quit): ")); | |
| 374 | 1182 i = get_number(FALSE, NULL); |
| 7 | 1183 if (i < 1 || i > len) |
| 1184 goto theend; | |
| 1185 } | |
| 1186 /* get the swap file name that will be used */ | |
| 2267 | 1187 (void)recover_names(fname, FALSE, i, &fname_used); |
| 7 | 1188 } |
| 2267 | 1189 if (fname_used == NULL) |
| 7 | 1190 goto theend; /* out of memory */ |
| 1191 | |
| 1192 /* When called from main() still need to initialize storage structure */ | |
| 625 | 1193 if (called_from_main && ml_open(curbuf) == FAIL) |
| 7 | 1194 getout(1); |
| 1195 | |
| 2267 | 1196 /* |
| 1197 * 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
|
1198 * Only the memline and crypt information in it are really used. |
| 2267 | 1199 */ |
| 7 | 1200 buf = (buf_T *)alloc((unsigned)sizeof(buf_T)); |
| 1201 if (buf == NULL) | |
| 1202 goto theend; | |
| 2267 | 1203 |
| 1204 /* | |
| 1205 * init fields in memline struct | |
| 1206 */ | |
| 7 | 1207 buf->b_ml.ml_stack_size = 0; /* no stack yet */ |
| 1208 buf->b_ml.ml_stack = NULL; /* no stack yet */ | |
| 1209 buf->b_ml.ml_stack_top = 0; /* nothing in the stack */ | |
| 1210 buf->b_ml.ml_line_lnum = 0; /* no cached line */ | |
| 1211 buf->b_ml.ml_locked = NULL; /* no locked block */ | |
| 1212 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
|
1213 #ifdef FEAT_CRYPT |
|
9e2e63af1641
Better fix for memory access in recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2407
diff
changeset
|
1214 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
|
1215 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
|
1216 #endif |
| 7 | 1217 |
| 2267 | 1218 /* |
| 1219 * open the memfile from the old swap file | |
| 1220 */ | |
| 1221 p = vim_strsave(fname_used); /* save "fname_used" for the message: | |
| 1222 mf_open() will consume "fname_used"! */ | |
| 1223 mfp = mf_open(fname_used, O_RDONLY); | |
| 1224 fname_used = p; | |
| 7 | 1225 if (mfp == NULL || mfp->mf_fd < 0) |
| 1226 { | |
| 2267 | 1227 if (fname_used != NULL) |
| 1228 EMSG2(_("E306: Cannot open %s"), fname_used); | |
| 7 | 1229 goto theend; |
| 1230 } | |
| 1231 buf->b_ml.ml_mfp = mfp; | |
| 2267 | 1232 #ifdef FEAT_CRYPT |
| 1233 mfp->mf_buffer = buf; | |
| 1234 #endif | |
| 7 | 1235 |
| 1236 /* | |
| 1237 * The page size set in mf_open() might be different from the page size | |
| 1238 * used in the swap file, we must get it from block 0. But to read block | |
| 1239 * 0 we need a page size. Use the minimal size for block 0 here, it will | |
| 1240 * be set to the real value below. | |
| 1241 */ | |
| 1242 mfp->mf_page_size = MIN_SWAP_PAGE_SIZE; | |
| 1243 | |
| 2267 | 1244 /* |
| 1245 * try to read block 0 | |
| 1246 */ | |
| 7 | 1247 if ((hp = mf_get(mfp, (blocknr_T)0, 1)) == NULL) |
| 1248 { | |
| 1249 msg_start(); | |
| 1250 MSG_PUTS_ATTR(_("Unable to read block 0 from "), attr | MSG_HIST); | |
| 1251 msg_outtrans_attr(mfp->mf_fname, attr | MSG_HIST); | |
| 2267 | 1252 MSG_PUTS_ATTR(_("\nMaybe no changes were made or Vim did not update the swap file."), |
| 7 | 1253 attr | MSG_HIST); |
| 1254 msg_end(); | |
| 1255 goto theend; | |
| 1256 } | |
| 1257 b0p = (ZERO_BL *)(hp->bh_data); | |
| 1258 if (STRNCMP(b0p->b0_version, "VIM 3.0", 7) == 0) | |
| 1259 { | |
| 1260 msg_start(); | |
| 1261 msg_outtrans_attr(mfp->mf_fname, MSG_HIST); | |
| 1262 MSG_PUTS_ATTR(_(" cannot be used with this version of Vim.\n"), | |
| 1263 MSG_HIST); | |
| 1264 MSG_PUTS_ATTR(_("Use Vim version 3.0.\n"), MSG_HIST); | |
| 1265 msg_end(); | |
| 1266 goto theend; | |
| 1267 } | |
| 2267 | 1268 if (ml_check_b0_id(b0p) == FAIL) |
| 7 | 1269 { |
| 1270 EMSG2(_("E307: %s does not look like a Vim swap file"), mfp->mf_fname); | |
| 1271 goto theend; | |
| 1272 } | |
| 1273 if (b0_magic_wrong(b0p)) | |
| 1274 { | |
| 1275 msg_start(); | |
| 1276 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
|
1277 #if defined(MSWIN) |
| 7 | 1278 if (STRNCMP(b0p->b0_hname, "PC ", 3) == 0) |
| 1279 MSG_PUTS_ATTR(_(" cannot be used with this version of Vim.\n"), | |
| 1280 attr | MSG_HIST); | |
| 1281 else | |
| 1282 #endif | |
| 1283 MSG_PUTS_ATTR(_(" cannot be used on this computer.\n"), | |
| 1284 attr | MSG_HIST); | |
| 1285 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
|
1286 /* avoid going past the end of a corrupted hostname */ |
| 7 | 1287 b0p->b0_fname[0] = NUL; |
| 1288 MSG_PUTS_ATTR(b0p->b0_hname, attr | MSG_HIST); | |
| 1289 MSG_PUTS_ATTR(_(",\nor the file has been damaged."), attr | MSG_HIST); | |
| 1290 msg_end(); | |
| 1291 goto theend; | |
| 1292 } | |
| 1105 | 1293 |
| 2267 | 1294 #ifdef FEAT_CRYPT |
| 6122 | 1295 for (i = 0; i < (int)(sizeof(id1_codes) / sizeof(int)); ++i) |
| 1296 if (id1_codes[i] == b0p->b0_id[1]) | |
| 1297 b0_cm = i; | |
| 1298 if (b0_cm > 0) | |
| 2267 | 1299 mch_memmove(mfp->mf_seed, &b0p->b0_seed, MF_SEED_LEN); |
| 6122 | 1300 crypt_set_cm_option(buf, b0_cm < 0 ? 0 : b0_cm); |
| 2267 | 1301 #else |
| 1302 if (b0p->b0_id[1] != BLOCK0_ID1) | |
| 1303 { | |
|
2283
7e1bd501306d
Mainly documentation updates.
Bram Moolenaar <bram@vim.org>
parents:
2273
diff
changeset
|
1304 EMSG2(_("E833: %s is encrypted and this version of Vim does not support encryption"), mfp->mf_fname); |
| 2267 | 1305 goto theend; |
| 1306 } | |
| 1307 #endif | |
| 1308 | |
| 7 | 1309 /* |
| 1310 * If we guessed the wrong page size, we have to recalculate the | |
| 1311 * highest block number in the file. | |
| 1312 */ | |
| 1313 if (mfp->mf_page_size != (unsigned)char_to_long(b0p->b0_page_size)) | |
| 1314 { | |
| 1105 | 1315 unsigned previous_page_size = mfp->mf_page_size; |
| 1316 | |
| 7 | 1317 mf_new_page_size(mfp, (unsigned)char_to_long(b0p->b0_page_size)); |
| 1105 | 1318 if (mfp->mf_page_size < previous_page_size) |
| 1319 { | |
| 1320 msg_start(); | |
| 1321 msg_outtrans_attr(mfp->mf_fname, attr | MSG_HIST); | |
| 1322 MSG_PUTS_ATTR(_(" has been damaged (page size is smaller than minimum value).\n"), | |
| 1323 attr | MSG_HIST); | |
| 1324 msg_end(); | |
| 1325 goto theend; | |
| 1326 } | |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
1327 if ((size = vim_lseek(mfp->mf_fd, (off_T)0L, SEEK_END)) <= 0) |
| 7 | 1328 mfp->mf_blocknr_max = 0; /* no file or empty file */ |
| 1329 else | |
| 1330 mfp->mf_blocknr_max = (blocknr_T)(size / mfp->mf_page_size); | |
| 1331 mfp->mf_infile_count = mfp->mf_blocknr_max; | |
| 1105 | 1332 |
| 1333 /* need to reallocate the memory used to store the data */ | |
| 1334 p = alloc(mfp->mf_page_size); | |
| 1335 if (p == NULL) | |
| 1336 goto theend; | |
| 1337 mch_memmove(p, hp->bh_data, previous_page_size); | |
| 1338 vim_free(hp->bh_data); | |
| 1339 hp->bh_data = p; | |
| 1340 b0p = (ZERO_BL *)(hp->bh_data); | |
| 7 | 1341 } |
| 1342 | |
| 2267 | 1343 /* |
| 1344 * If .swp file name given directly, use name from swap file for buffer. | |
| 1345 */ | |
| 7 | 1346 if (directly) |
| 1347 { | |
| 1348 expand_env(b0p->b0_fname, NameBuff, MAXPATHL); | |
| 1349 if (setfname(curbuf, NameBuff, NULL, TRUE) == FAIL) | |
| 1350 goto theend; | |
| 1351 } | |
| 1352 | |
| 1353 home_replace(NULL, mfp->mf_fname, NameBuff, MAXPATHL, TRUE); | |
| 274 | 1354 smsg((char_u *)_("Using swap file \"%s\""), NameBuff); |
| 7 | 1355 |
| 1356 if (buf_spname(curbuf) != NULL) | |
| 3839 | 1357 vim_strncpy(NameBuff, buf_spname(curbuf), MAXPATHL - 1); |
| 7 | 1358 else |
| 1359 home_replace(NULL, curbuf->b_ffname, NameBuff, MAXPATHL, TRUE); | |
| 274 | 1360 smsg((char_u *)_("Original file \"%s\""), NameBuff); |
| 7 | 1361 msg_putchar('\n'); |
| 1362 | |
| 2267 | 1363 /* |
| 1364 * check date of swap file and original file | |
| 1365 */ | |
| 7 | 1366 mtime = char_to_long(b0p->b0_mtime); |
| 1367 if (curbuf->b_ffname != NULL | |
| 1368 && mch_stat((char *)curbuf->b_ffname, &org_stat) != -1 | |
| 1369 && ((mch_stat((char *)mfp->mf_fname, &swp_stat) != -1 | |
| 1370 && org_stat.st_mtime > swp_stat.st_mtime) | |
| 1371 || org_stat.st_mtime != mtime)) | |
| 1372 { | |
| 1373 EMSG(_("E308: Warning: Original file may have been changed")); | |
| 1374 } | |
| 1375 out_flush(); | |
| 39 | 1376 |
| 1377 /* Get the 'fileformat' and 'fileencoding' from block zero. */ | |
| 1378 b0_ff = (b0p->b0_flags & B0_FF_MASK); | |
| 1379 if (b0p->b0_flags & B0_HAS_FENC) | |
| 1380 { | |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1381 int fnsize = B0_FNAME_SIZE_NOCRYPT; |
| 2267 | 1382 |
| 1383 #ifdef FEAT_CRYPT | |
| 1384 /* Use the same size as in add_b0_fenc(). */ | |
| 1385 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
|
1386 fnsize = B0_FNAME_SIZE_CRYPT; |
| 2267 | 1387 #endif |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1388 for (p = b0p->b0_fname + fnsize; p > b0p->b0_fname && p[-1] != NUL; --p) |
| 39 | 1389 ; |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1390 b0_fenc = vim_strnsave(p, (int)(b0p->b0_fname + fnsize - p)); |
| 39 | 1391 } |
| 1392 | |
| 7 | 1393 mf_put(mfp, hp, FALSE, FALSE); /* release block 0 */ |
| 1394 hp = NULL; | |
| 1395 | |
| 1396 /* | |
| 1397 * Now that we are sure that the file is going to be recovered, clear the | |
| 1398 * contents of the current buffer. | |
| 1399 */ | |
| 1400 while (!(curbuf->b_ml.ml_flags & ML_EMPTY)) | |
| 1401 ml_delete((linenr_T)1, FALSE); | |
| 1402 | |
| 1403 /* | |
| 1404 * Try reading the original file to obtain the values of 'fileformat', | |
| 1405 * 'fileencoding', etc. Ignore errors. The text itself is not used. | |
| 2267 | 1406 * When the file is encrypted the user is asked to enter the key. |
| 7 | 1407 */ |
| 1408 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
|
1409 orig_file_status = readfile(curbuf->b_ffname, NULL, (linenr_T)0, |
| 7 | 1410 (linenr_T)0, (linenr_T)MAXLNUM, NULL, READ_NEW); |
| 1411 | |
| 2267 | 1412 #ifdef FEAT_CRYPT |
| 1413 if (b0_cm >= 0) | |
| 1414 { | |
| 1415 /* Need to ask the user for the crypt key. If this fails we continue | |
| 1416 * without a key, will probably get garbage text. */ | |
| 1417 if (*curbuf->b_p_key != NUL) | |
| 1418 { | |
| 1419 smsg((char_u *)_("Swap file is encrypted: \"%s\""), fname_used); | |
| 1420 MSG_PUTS(_("\nIf you entered a new crypt key but did not write the text file,")); | |
| 1421 MSG_PUTS(_("\nenter the new crypt key.")); | |
| 1422 MSG_PUTS(_("\nIf you wrote the text file after changing the crypt key press enter")); | |
| 1423 MSG_PUTS(_("\nto use the same key for text file and swap file")); | |
| 1424 } | |
| 1425 else | |
| 1426 smsg((char_u *)_(need_key_msg), fname_used); | |
| 6122 | 1427 buf->b_p_key = crypt_get_key(FALSE, FALSE); |
| 2267 | 1428 if (buf->b_p_key == NULL) |
| 1429 buf->b_p_key = curbuf->b_p_key; | |
| 1430 else if (*buf->b_p_key == NUL) | |
| 1431 { | |
| 1432 vim_free(buf->b_p_key); | |
| 1433 buf->b_p_key = curbuf->b_p_key; | |
| 1434 } | |
| 1435 if (buf->b_p_key == NULL) | |
| 1436 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
|
1437 } |
| 2267 | 1438 #endif |
| 7 | 1439 |
| 39 | 1440 /* Use the 'fileformat' and 'fileencoding' as stored in the swap file. */ |
| 1441 if (b0_ff != 0) | |
| 1442 set_fileformat(b0_ff - 1, OPT_LOCAL); | |
| 1443 if (b0_fenc != NULL) | |
| 1444 { | |
| 1445 set_option_value((char_u *)"fenc", 0L, b0_fenc, OPT_LOCAL); | |
| 1446 vim_free(b0_fenc); | |
| 1447 } | |
| 1448 unchanged(curbuf, TRUE); | |
| 1449 | |
| 7 | 1450 bnum = 1; /* start with block 1 */ |
| 1451 page_count = 1; /* which is 1 page */ | |
| 1452 lnum = 0; /* append after line 0 in curbuf */ | |
| 1453 line_count = 0; | |
| 1454 idx = 0; /* start with first index in block 1 */ | |
| 1455 error = 0; | |
| 1456 buf->b_ml.ml_stack_top = 0; | |
| 1457 buf->b_ml.ml_stack = NULL; | |
| 1458 buf->b_ml.ml_stack_size = 0; /* no stack yet */ | |
| 1459 | |
| 1460 if (curbuf->b_ffname == NULL) | |
| 1461 cannot_open = TRUE; | |
| 1462 else | |
| 1463 cannot_open = FALSE; | |
| 1464 | |
| 1465 serious_error = FALSE; | |
| 1466 for ( ; !got_int; line_breakcheck()) | |
| 1467 { | |
| 1468 if (hp != NULL) | |
| 1469 mf_put(mfp, hp, FALSE, FALSE); /* release previous block */ | |
| 1470 | |
| 1471 /* | |
| 1472 * get block | |
| 1473 */ | |
| 1474 if ((hp = mf_get(mfp, (blocknr_T)bnum, page_count)) == NULL) | |
| 1475 { | |
| 1476 if (bnum == 1) | |
| 1477 { | |
| 1478 EMSG2(_("E309: Unable to read block 1 from %s"), mfp->mf_fname); | |
| 1479 goto theend; | |
| 1480 } | |
| 1481 ++error; | |
| 1482 ml_append(lnum++, (char_u *)_("???MANY LINES MISSING"), | |
| 1483 (colnr_T)0, TRUE); | |
| 1484 } | |
| 1485 else /* there is a block */ | |
| 1486 { | |
| 1487 pp = (PTR_BL *)(hp->bh_data); | |
| 1488 if (pp->pb_id == PTR_ID) /* it is a pointer block */ | |
| 1489 { | |
| 1490 /* check line count when using pointer block first time */ | |
| 1491 if (idx == 0 && line_count != 0) | |
| 1492 { | |
| 1493 for (i = 0; i < (int)pp->pb_count; ++i) | |
| 1494 line_count -= pp->pb_pointer[i].pe_line_count; | |
| 1495 if (line_count != 0) | |
| 1496 { | |
| 1497 ++error; | |
| 1498 ml_append(lnum++, (char_u *)_("???LINE COUNT WRONG"), | |
| 1499 (colnr_T)0, TRUE); | |
| 1500 } | |
| 1501 } | |
| 1502 | |
| 1503 if (pp->pb_count == 0) | |
| 1504 { | |
| 1505 ml_append(lnum++, (char_u *)_("???EMPTY BLOCK"), | |
| 1506 (colnr_T)0, TRUE); | |
| 1507 ++error; | |
| 1508 } | |
| 1509 else if (idx < (int)pp->pb_count) /* go a block deeper */ | |
| 1510 { | |
| 1511 if (pp->pb_pointer[idx].pe_bnum < 0) | |
| 1512 { | |
| 1513 /* | |
| 1514 * Data block with negative block number. | |
| 1515 * Try to read lines from the original file. | |
| 1516 * This is slow, but it works. | |
| 1517 */ | |
| 1518 if (!cannot_open) | |
| 1519 { | |
| 1520 line_count = pp->pb_pointer[idx].pe_line_count; | |
| 1521 if (readfile(curbuf->b_ffname, NULL, lnum, | |
| 1522 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
|
1523 line_count, NULL, 0) != OK) |
| 7 | 1524 cannot_open = TRUE; |
| 1525 else | |
| 1526 lnum += line_count; | |
| 1527 } | |
| 1528 if (cannot_open) | |
| 1529 { | |
| 1530 ++error; | |
| 1531 ml_append(lnum++, (char_u *)_("???LINES MISSING"), | |
| 1532 (colnr_T)0, TRUE); | |
| 1533 } | |
| 1534 ++idx; /* get same block again for next index */ | |
| 1535 continue; | |
| 1536 } | |
| 1537 | |
| 1538 /* | |
| 1539 * going one block deeper in the tree | |
| 1540 */ | |
| 1541 if ((top = ml_add_stack(buf)) < 0) /* new entry in stack */ | |
| 1542 { | |
| 1543 ++error; | |
| 1544 break; /* out of memory */ | |
| 1545 } | |
| 1546 ip = &(buf->b_ml.ml_stack[top]); | |
| 1547 ip->ip_bnum = bnum; | |
| 1548 ip->ip_index = idx; | |
| 1549 | |
| 1550 bnum = pp->pb_pointer[idx].pe_bnum; | |
| 1551 line_count = pp->pb_pointer[idx].pe_line_count; | |
| 1552 page_count = pp->pb_pointer[idx].pe_page_count; | |
| 2885 | 1553 idx = 0; |
| 7 | 1554 continue; |
| 1555 } | |
| 1556 } | |
| 1557 else /* not a pointer block */ | |
| 1558 { | |
| 1559 dp = (DATA_BL *)(hp->bh_data); | |
| 1560 if (dp->db_id != DATA_ID) /* block id wrong */ | |
| 1561 { | |
| 1562 if (bnum == 1) | |
| 1563 { | |
| 1564 EMSG2(_("E310: Block 1 ID wrong (%s not a .swp file?)"), | |
| 1565 mfp->mf_fname); | |
| 1566 goto theend; | |
| 1567 } | |
| 1568 ++error; | |
| 1569 ml_append(lnum++, (char_u *)_("???BLOCK MISSING"), | |
| 1570 (colnr_T)0, TRUE); | |
| 1571 } | |
| 1572 else | |
| 1573 { | |
| 1574 /* | |
| 1575 * it is a data block | |
| 1576 * Append all the lines in this block | |
| 1577 */ | |
| 1578 has_error = FALSE; | |
| 1579 /* | |
| 1580 * check length of block | |
| 1581 * if wrong, use length in pointer block | |
| 1582 */ | |
| 1583 if (page_count * mfp->mf_page_size != dp->db_txt_end) | |
| 1584 { | |
| 1585 ml_append(lnum++, (char_u *)_("??? from here until ???END lines may be messed up"), | |
| 1586 (colnr_T)0, TRUE); | |
| 1587 ++error; | |
| 1588 has_error = TRUE; | |
| 1589 dp->db_txt_end = page_count * mfp->mf_page_size; | |
| 1590 } | |
| 1591 | |
| 1592 /* make sure there is a NUL at the end of the block */ | |
| 1593 *((char_u *)dp + dp->db_txt_end - 1) = NUL; | |
| 1594 | |
| 1595 /* | |
| 1596 * check number of lines in block | |
| 1597 * if wrong, use count in data block | |
| 1598 */ | |
| 1599 if (line_count != dp->db_line_count) | |
| 1600 { | |
| 1601 ml_append(lnum++, (char_u *)_("??? from here until ???END lines may have been inserted/deleted"), | |
| 1602 (colnr_T)0, TRUE); | |
| 1603 ++error; | |
| 1604 has_error = TRUE; | |
| 1605 } | |
| 1606 | |
| 1607 for (i = 0; i < dp->db_line_count; ++i) | |
| 1608 { | |
| 1609 txt_start = (dp->db_index[i] & DB_INDEX_MASK); | |
| 1978 | 1610 if (txt_start <= (int)HEADER_SIZE |
| 7 | 1611 || txt_start >= (int)dp->db_txt_end) |
| 1612 { | |
| 1613 p = (char_u *)"???"; | |
| 1614 ++error; | |
| 1615 } | |
| 1616 else | |
| 1617 p = (char_u *)dp + txt_start; | |
| 1618 ml_append(lnum++, p, (colnr_T)0, TRUE); | |
| 1619 } | |
| 1620 if (has_error) | |
| 1978 | 1621 ml_append(lnum++, (char_u *)_("???END"), |
| 1622 (colnr_T)0, TRUE); | |
| 7 | 1623 } |
| 1624 } | |
| 1625 } | |
| 1626 | |
| 1627 if (buf->b_ml.ml_stack_top == 0) /* finished */ | |
| 1628 break; | |
| 1629 | |
| 1630 /* | |
| 1631 * go one block up in the tree | |
| 1632 */ | |
| 1633 ip = &(buf->b_ml.ml_stack[--(buf->b_ml.ml_stack_top)]); | |
| 1634 bnum = ip->ip_bnum; | |
| 1635 idx = ip->ip_index + 1; /* go to next index */ | |
| 1636 page_count = 1; | |
| 1637 } | |
| 1638 | |
| 1639 /* | |
|
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
|
1640 * 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:
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diff
changeset
|
1641 * set the 'modified' flag. |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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diff
changeset
|
1642 * 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
|
1643 * 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
|
1644 * Line ml_line_count + 1 in the dummy empty line. |
| 7 | 1645 */ |
|
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
|
1646 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
|
1647 { |
|
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
|
1648 /* 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:
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diff
changeset
|
1649 * 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:
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diff
changeset
|
1650 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:
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diff
changeset
|
1651 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1652 changed_int(); |
|
10952
835604f3c37a
patch 8.0.0365: might free a dict item that wasn't allocated
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1653 ++CHANGEDTICK(curbuf); |
|
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
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diff
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|
1654 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
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diff
changeset
|
1655 } |
|
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
|
1656 else |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
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diff
changeset
|
1657 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
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diff
changeset
|
1658 for (idx = 1; idx <= lnum; ++idx) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
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diff
changeset
|
1659 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
2145
diff
changeset
|
1660 /* 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
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parents:
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diff
changeset
|
1661 p = vim_strsave(ml_get(idx)); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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diff
changeset
|
1662 i = STRCMP(p, ml_get(idx + lnum)); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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diff
changeset
|
1663 vim_free(p); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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diff
changeset
|
1664 if (i != 0) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
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diff
changeset
|
1665 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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diff
changeset
|
1666 changed_int(); |
|
10952
835604f3c37a
patch 8.0.0365: might free a dict item that wasn't allocated
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1667 ++CHANGEDTICK(curbuf); |
|
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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diff
changeset
|
1668 break; |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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diff
changeset
|
1669 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
2145
diff
changeset
|
1670 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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diff
changeset
|
1671 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
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diff
changeset
|
1672 |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
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diff
changeset
|
1673 /* |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
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diff
changeset
|
1674 * 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
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parents:
2145
diff
changeset
|
1675 * 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:
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diff
changeset
|
1676 */ |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
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diff
changeset
|
1677 while (curbuf->b_ml.ml_line_count > lnum |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
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diff
changeset
|
1678 && !(curbuf->b_ml.ml_flags & ML_EMPTY)) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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diff
changeset
|
1679 ml_delete(curbuf->b_ml.ml_line_count, FALSE); |
| 7 | 1680 curbuf->b_flags |= BF_RECOVERED; |
| 1681 | |
| 1682 recoverymode = FALSE; | |
| 1683 if (got_int) | |
| 1684 EMSG(_("E311: Recovery Interrupted")); | |
| 1685 else if (error) | |
| 1686 { | |
| 1687 ++no_wait_return; | |
| 1688 MSG(">>>>>>>>>>>>>"); | |
| 1689 EMSG(_("E312: Errors detected while recovering; look for lines starting with ???")); | |
| 1690 --no_wait_return; | |
| 1691 MSG(_("See \":help E312\" for more information.")); | |
| 1692 MSG(">>>>>>>>>>>>>"); | |
| 1693 } | |
| 1694 else | |
| 1695 { | |
|
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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diff
changeset
|
1696 if (curbuf->b_changed) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
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diff
changeset
|
1697 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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|
1698 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
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diff
changeset
|
1699 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
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diff
changeset
|
1700 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>
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diff
changeset
|
1701 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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diff
changeset
|
1702 else |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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diff
changeset
|
1703 MSG(_("Recovery completed. Buffer contents equals file contents.")); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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diff
changeset
|
1704 MSG_PUTS(_("\nYou may want to delete the .swp file now.\n\n")); |
| 7 | 1705 cmdline_row = msg_row; |
| 1706 } | |
| 2267 | 1707 #ifdef FEAT_CRYPT |
| 1708 if (*buf->b_p_key != NUL && STRCMP(curbuf->b_p_key, buf->b_p_key) != 0) | |
| 1709 { | |
| 1710 MSG_PUTS(_("Using crypt key from swap file for the text file.\n")); | |
| 1711 set_option_value((char_u *)"key", 0L, buf->b_p_key, OPT_LOCAL); | |
| 1712 } | |
| 1713 #endif | |
| 7 | 1714 redraw_curbuf_later(NOT_VALID); |
| 1715 | |
| 1716 theend: | |
| 2267 | 1717 vim_free(fname_used); |
| 7 | 1718 recoverymode = FALSE; |
| 1719 if (mfp != NULL) | |
| 1720 { | |
| 1721 if (hp != NULL) | |
| 1722 mf_put(mfp, hp, FALSE, FALSE); | |
| 1723 mf_close(mfp, FALSE); /* will also vim_free(mfp->mf_fname) */ | |
| 1724 } | |
| 1053 | 1725 if (buf != NULL) |
| 1726 { | |
| 2267 | 1727 #ifdef FEAT_CRYPT |
| 1728 if (buf->b_p_key != curbuf->b_p_key) | |
| 1729 free_string_option(buf->b_p_key); | |
|
2407
6bc102a4bff8
Fix memory access to 'cryptmethod' during recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
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2394
diff
changeset
|
1730 free_string_option(buf->b_p_cm); |
| 2267 | 1731 #endif |
| 1053 | 1732 vim_free(buf->b_ml.ml_stack); |
| 1733 vim_free(buf); | |
| 1734 } | |
| 7 | 1735 if (serious_error && called_from_main) |
| 1736 ml_close(curbuf, TRUE); | |
| 1737 #ifdef FEAT_AUTOCMD | |
| 1738 else | |
| 1739 { | |
| 1740 apply_autocmds(EVENT_BUFREADPOST, NULL, curbuf->b_fname, FALSE, curbuf); | |
| 1741 apply_autocmds(EVENT_BUFWINENTER, NULL, curbuf->b_fname, FALSE, curbuf); | |
| 1742 } | |
| 1743 #endif | |
| 1744 return; | |
| 1745 } | |
| 1746 | |
| 1747 /* | |
| 1748 * Find the names of swap files in current directory and the directory given | |
| 1749 * with the 'directory' option. | |
| 1750 * | |
| 1751 * Used to: | |
| 1752 * - list the swap files for "vim -r" | |
| 1753 * - count the number of swap files when recovering | |
| 1754 * - list the swap files when recovering | |
| 1755 * - find the name of the n'th swap file when recovering | |
| 1756 */ | |
| 1757 int | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
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7803
diff
changeset
|
1758 recover_names( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
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7803
diff
changeset
|
1759 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
|
1760 int list, /* when TRUE, list the swap file names */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
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7803
diff
changeset
|
1761 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>
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diff
changeset
|
1762 char_u **fname_out) /* result when "nr" > 0 */ |
| 7 | 1763 { |
| 1764 int num_names; | |
| 1765 char_u *(names[6]); | |
| 1766 char_u *tail; | |
| 1767 char_u *p; | |
| 1768 int num_files; | |
| 1769 int file_count = 0; | |
| 1770 char_u **files; | |
| 1771 int i; | |
| 1772 char_u *dirp; | |
| 1773 char_u *dir_name; | |
| 2175 | 1774 char_u *fname_res = NULL; |
|
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|
1775 #ifdef HAVE_READLINK |
|
de0e7ca61893
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diff
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|
1776 char_u fname_buf[MAXPATHL]; |
| 2175 | 1777 #endif |
| 1778 | |
| 1779 if (fname != NULL) | |
| 1780 { | |
| 1781 #ifdef HAVE_READLINK | |
| 2267 | 1782 /* Expand symlink in the file name, because the swap file is created |
| 1783 * with the actual file instead of with the symlink. */ | |
| 1784 if (resolve_symlink(fname, fname_buf) == OK) | |
| 1785 fname_res = fname_buf; | |
| 1786 else | |
|
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diff
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|
1787 #endif |
| 2267 | 1788 fname_res = fname; |
| 2175 | 1789 } |
| 7 | 1790 |
| 1791 if (list) | |
| 1792 { | |
|
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|
1793 /* use msg() to start the scrolling properly */ |
| 7 | 1794 msg((char_u *)_("Swap files found:")); |
| 1795 msg_putchar('\n'); | |
| 1796 } | |
| 1797 | |
| 1798 /* | |
| 1799 * Do the loop for every directory in 'directory'. | |
| 1800 * First allocate some memory to put the directory name in. | |
| 1801 */ | |
| 1802 dir_name = alloc((unsigned)STRLEN(p_dir) + 1); | |
| 1803 dirp = p_dir; | |
| 1804 while (dir_name != NULL && *dirp) | |
| 1805 { | |
| 1806 /* | |
| 1807 * Isolate a directory name from *dirp and put it in dir_name (we know | |
| 1808 * it is large enough, so use 31000 for length). | |
| 1809 * Advance dirp to next directory name. | |
| 1810 */ | |
| 1811 (void)copy_option_part(&dirp, dir_name, 31000, ","); | |
| 1812 | |
| 1813 if (dir_name[0] == '.' && dir_name[1] == NUL) /* check current dir */ | |
| 1814 { | |
| 2267 | 1815 if (fname == NULL) |
| 7 | 1816 { |
| 1817 #ifdef VMS | |
| 1818 names[0] = vim_strsave((char_u *)"*_sw%"); | |
| 1819 #else | |
| 1820 names[0] = vim_strsave((char_u *)"*.sw?"); | |
| 1821 #endif | |
| 1005 | 1822 #if defined(UNIX) || defined(WIN3264) |
| 1823 /* For Unix names starting with a dot are special. MS-Windows | |
| 1824 * supports this too, on some file systems. */ | |
| 7 | 1825 names[1] = vim_strsave((char_u *)".*.sw?"); |
| 1826 names[2] = vim_strsave((char_u *)".sw?"); | |
| 1827 num_names = 3; | |
| 1828 #else | |
| 1829 # ifdef VMS | |
| 1830 names[1] = vim_strsave((char_u *)".*_sw%"); | |
| 1831 num_names = 2; | |
| 1832 # else | |
| 1833 num_names = 1; | |
| 1834 # endif | |
| 1835 #endif | |
| 1836 } | |
| 1837 else | |
|
2145
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changeset
|
1838 num_names = recov_file_names(names, fname_res, TRUE); |
| 7 | 1839 } |
| 1840 else /* check directory dir_name */ | |
| 1841 { | |
| 2267 | 1842 if (fname == NULL) |
| 7 | 1843 { |
| 1844 #ifdef VMS | |
| 1845 names[0] = concat_fnames(dir_name, (char_u *)"*_sw%", TRUE); | |
| 1846 #else | |
| 1847 names[0] = concat_fnames(dir_name, (char_u *)"*.sw?", TRUE); | |
| 1848 #endif | |
| 1005 | 1849 #if defined(UNIX) || defined(WIN3264) |
| 1850 /* For Unix names starting with a dot are special. MS-Windows | |
| 1851 * supports this too, on some file systems. */ | |
| 7 | 1852 names[1] = concat_fnames(dir_name, (char_u *)".*.sw?", TRUE); |
| 1853 names[2] = concat_fnames(dir_name, (char_u *)".sw?", TRUE); | |
| 1854 num_names = 3; | |
| 1855 #else | |
| 1856 # ifdef VMS | |
| 1857 names[1] = concat_fnames(dir_name, (char_u *)".*_sw%", TRUE); | |
| 1858 num_names = 2; | |
| 1859 # else | |
| 1860 num_names = 1; | |
| 1861 # endif | |
| 1862 #endif | |
| 1863 } | |
| 1864 else | |
| 1865 { | |
| 1866 #if defined(UNIX) || defined(WIN3264) | |
|
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1867 int len = (int)STRLEN(dir_name); |
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1868 |
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1869 p = dir_name + len; |
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1870 if (after_pathsep(dir_name, p) && len > 1 && p[-1] == p[-2]) |
| 7 | 1871 { |
| 1872 /* Ends with '//', Use Full path for swap name */ | |
|
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1873 tail = make_percent_swname(dir_name, fname_res); |
| 7 | 1874 } |
| 1875 else | |
| 1876 #endif | |
| 1877 { | |
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1878 tail = gettail(fname_res); |
| 7 | 1879 tail = concat_fnames(dir_name, tail, TRUE); |
| 1880 } | |
| 1881 if (tail == NULL) | |
| 1882 num_names = 0; | |
| 1883 else | |
| 1884 { | |
| 1885 num_names = recov_file_names(names, tail, FALSE); | |
| 1886 vim_free(tail); | |
| 1887 } | |
| 1888 } | |
| 1889 } | |
| 1890 | |
| 1891 /* check for out-of-memory */ | |
| 1892 for (i = 0; i < num_names; ++i) | |
| 1893 { | |
| 1894 if (names[i] == NULL) | |
| 1895 { | |
| 1896 for (i = 0; i < num_names; ++i) | |
| 1897 vim_free(names[i]); | |
| 1898 num_names = 0; | |
| 1899 } | |
| 1900 } | |
| 1901 if (num_names == 0) | |
| 1902 num_files = 0; | |
| 1903 else if (expand_wildcards(num_names, names, &num_files, &files, | |
| 1904 EW_KEEPALL|EW_FILE|EW_SILENT) == FAIL) | |
| 1905 num_files = 0; | |
| 1906 | |
| 1907 /* | |
| 1908 * When no swap file found, wildcard expansion might have failed (e.g. | |
| 1909 * not able to execute the shell). | |
| 1910 * Try finding a swap file by simply adding ".swp" to the file name. | |
| 1911 */ | |
| 2267 | 1912 if (*dirp == NUL && file_count + num_files == 0 && fname != NULL) |
| 7 | 1913 { |
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1914 stat_T st; |
| 7 | 1915 char_u *swapname; |
| 1916 | |
|
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1917 swapname = modname(fname_res, |
| 2823 | 1918 #if defined(VMS) |
|
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1919 (char_u *)"_swp", FALSE |
| 7 | 1920 #else |
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1921 (char_u *)".swp", TRUE |
| 7 | 1922 #endif |
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1923 ); |
| 7 | 1924 if (swapname != NULL) |
| 1925 { | |
| 1926 if (mch_stat((char *)swapname, &st) != -1) /* It exists! */ | |
| 1927 { | |
| 1928 files = (char_u **)alloc((unsigned)sizeof(char_u *)); | |
| 1929 if (files != NULL) | |
| 1930 { | |
| 1931 files[0] = swapname; | |
| 1932 swapname = NULL; | |
| 1933 num_files = 1; | |
| 1934 } | |
| 1935 } | |
| 1936 vim_free(swapname); | |
| 1937 } | |
| 1938 } | |
| 1939 | |
| 1940 /* | |
| 1941 * remove swapfile name of the current buffer, it must be ignored | |
| 1942 */ | |
| 1943 if (curbuf->b_ml.ml_mfp != NULL | |
| 1944 && (p = curbuf->b_ml.ml_mfp->mf_fname) != NULL) | |
| 1945 { | |
| 1946 for (i = 0; i < num_files; ++i) | |
| 1947 if (fullpathcmp(p, files[i], TRUE) & FPC_SAME) | |
| 1948 { | |
| 1855 | 1949 /* Remove the name from files[i]. Move further entries |
| 1950 * down. When the array becomes empty free it here, since | |
| 1951 * FreeWild() won't be called below. */ | |
| 7 | 1952 vim_free(files[i]); |
| 1855 | 1953 if (--num_files == 0) |
| 1954 vim_free(files); | |
| 1955 else | |
| 1956 for ( ; i < num_files; ++i) | |
| 1957 files[i] = files[i + 1]; | |
| 7 | 1958 } |
| 1959 } | |
| 838 | 1960 if (nr > 0) |
| 7 | 1961 { |
| 1962 file_count += num_files; | |
| 1963 if (nr <= file_count) | |
| 1964 { | |
| 2267 | 1965 *fname_out = vim_strsave( |
| 1966 files[nr - 1 + num_files - file_count]); | |
| 7 | 1967 dirp = (char_u *)""; /* stop searching */ |
| 1968 } | |
| 1969 } | |
| 1970 else if (list) | |
| 1971 { | |
| 1972 if (dir_name[0] == '.' && dir_name[1] == NUL) | |
| 1973 { | |
| 2267 | 1974 if (fname == NULL) |
| 7 | 1975 MSG_PUTS(_(" In current directory:\n")); |
| 1976 else | |
| 1977 MSG_PUTS(_(" Using specified name:\n")); | |
| 1978 } | |
| 1979 else | |
| 1980 { | |
| 1981 MSG_PUTS(_(" In directory ")); | |
| 1982 msg_home_replace(dir_name); | |
| 1983 MSG_PUTS(":\n"); | |
| 1984 } | |
| 1985 | |
| 1986 if (num_files) | |
| 1987 { | |
| 1988 for (i = 0; i < num_files; ++i) | |
| 1989 { | |
| 1990 /* print the swap file name */ | |
| 1991 msg_outnum((long)++file_count); | |
| 1992 MSG_PUTS(". "); | |
| 1993 msg_puts(gettail(files[i])); | |
| 1994 msg_putchar('\n'); | |
| 1995 (void)swapfile_info(files[i]); | |
| 1996 } | |
| 1997 } | |
| 1998 else | |
| 1999 MSG_PUTS(_(" -- none --\n")); | |
| 2000 out_flush(); | |
| 2001 } | |
| 2002 else | |
| 2003 file_count += num_files; | |
| 2004 | |
| 2005 for (i = 0; i < num_names; ++i) | |
| 2006 vim_free(names[i]); | |
| 838 | 2007 if (num_files > 0) |
| 2008 FreeWild(num_files, files); | |
| 7 | 2009 } |
| 2010 vim_free(dir_name); | |
| 2011 return file_count; | |
| 2012 } | |
| 2013 | |
| 2014 #if defined(UNIX) || defined(WIN3264) /* Need _very_ long file names */ | |
| 2015 /* | |
| 2016 * Append the full path to name with path separators made into percent | |
| 2017 * signs, to dir. An unnamed buffer is handled as "" (<currentdir>/"") | |
| 2018 */ | |
| 2019 static char_u * | |
|
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|
2020 make_percent_swname(char_u *dir, char_u *name) |
| 7 | 2021 { |
| 39 | 2022 char_u *d, *s, *f; |
| 7 | 2023 |
| 2024 f = fix_fname(name != NULL ? name : (char_u *) ""); | |
| 2025 d = NULL; | |
| 2026 if (f != NULL) | |
| 2027 { | |
| 2028 s = alloc((unsigned)(STRLEN(f) + 1)); | |
| 2029 if (s != NULL) | |
| 2030 { | |
| 39 | 2031 STRCPY(s, f); |
|
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2032 for (d = s; *d != NUL; MB_PTR_ADV(d)) |
| 39 | 2033 if (vim_ispathsep(*d)) |
| 2034 *d = '%'; | |
| 7 | 2035 d = concat_fnames(dir, s, TRUE); |
| 2036 vim_free(s); | |
| 2037 } | |
| 2038 vim_free(f); | |
| 2039 } | |
| 2040 return d; | |
| 2041 } | |
| 2042 #endif | |
| 2043 | |
|
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changeset
|
2044 #if (defined(UNIX) || defined(VMS)) && (defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)) |
| 7 | 2045 static int process_still_running; |
| 2046 #endif | |
| 2047 | |
| 2048 /* | |
| 580 | 2049 * Give information about an existing swap file. |
| 7 | 2050 * Returns timestamp (0 when unknown). |
| 2051 */ | |
| 2052 static time_t | |
|
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|
2053 swapfile_info(char_u *fname) |
| 7 | 2054 { |
|
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diff
changeset
|
2055 stat_T st; |
| 7 | 2056 int fd; |
| 2057 struct block0 b0; | |
| 2058 time_t x = (time_t)0; | |
| 1001 | 2059 char *p; |
| 7 | 2060 #ifdef UNIX |
| 2061 char_u uname[B0_UNAME_SIZE]; | |
| 2062 #endif | |
| 2063 | |
| 2064 /* print the swap file date */ | |
| 2065 if (mch_stat((char *)fname, &st) != -1) | |
| 2066 { | |
| 2067 #ifdef UNIX | |
| 2068 /* print name of owner of the file */ | |
| 2069 if (mch_get_uname(st.st_uid, uname, B0_UNAME_SIZE) == OK) | |
| 2070 { | |
| 2071 MSG_PUTS(_(" owned by: ")); | |
| 2072 msg_outtrans(uname); | |
| 2073 MSG_PUTS(_(" dated: ")); | |
| 2074 } | |
| 2075 else | |
| 2076 #endif | |
| 2077 MSG_PUTS(_(" dated: ")); | |
| 2078 x = st.st_mtime; /* Manx C can't do &st.st_mtime */ | |
| 1001 | 2079 p = ctime(&x); /* includes '\n' */ |
| 2080 if (p == NULL) | |
| 2081 MSG_PUTS("(invalid)\n"); | |
| 2082 else | |
| 2083 MSG_PUTS(p); | |
| 7 | 2084 } |
| 2085 | |
| 2086 /* | |
| 2087 * print the original file name | |
| 2088 */ | |
| 2089 fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
| 2090 if (fd >= 0) | |
| 2091 { | |
| 2664 | 2092 if (read_eintr(fd, &b0, sizeof(b0)) == sizeof(b0)) |
| 7 | 2093 { |
| 2094 if (STRNCMP(b0.b0_version, "VIM 3.0", 7) == 0) | |
| 2095 { | |
| 2096 MSG_PUTS(_(" [from Vim version 3.0]")); | |
| 2097 } | |
| 2267 | 2098 else if (ml_check_b0_id(&b0) == FAIL) |
| 7 | 2099 { |
| 2100 MSG_PUTS(_(" [does not look like a Vim swap file]")); | |
| 2101 } | |
| 2102 else | |
| 2103 { | |
| 2104 MSG_PUTS(_(" file name: ")); | |
| 2105 if (b0.b0_fname[0] == NUL) | |
| 9 | 2106 MSG_PUTS(_("[No Name]")); |
| 7 | 2107 else |
| 2108 msg_outtrans(b0.b0_fname); | |
| 2109 | |
| 2110 MSG_PUTS(_("\n modified: ")); | |
| 2111 MSG_PUTS(b0.b0_dirty ? _("YES") : _("no")); | |
| 2112 | |
| 2113 if (*(b0.b0_uname) != NUL) | |
| 2114 { | |
| 2115 MSG_PUTS(_("\n user name: ")); | |
| 2116 msg_outtrans(b0.b0_uname); | |
| 2117 } | |
| 2118 | |
| 2119 if (*(b0.b0_hname) != NUL) | |
| 2120 { | |
| 2121 if (*(b0.b0_uname) != NUL) | |
| 2122 MSG_PUTS(_(" host name: ")); | |
| 2123 else | |
| 2124 MSG_PUTS(_("\n host name: ")); | |
| 2125 msg_outtrans(b0.b0_hname); | |
| 2126 } | |
| 2127 | |
| 2128 if (char_to_long(b0.b0_pid) != 0L) | |
| 2129 { | |
| 2130 MSG_PUTS(_("\n process ID: ")); | |
| 2131 msg_outnum(char_to_long(b0.b0_pid)); | |
|
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|
2132 #if defined(UNIX) |
| 7 | 2133 /* EMX kill() not working correctly, it seems */ |
| 2134 if (kill((pid_t)char_to_long(b0.b0_pid), 0) == 0) | |
| 2135 { | |
| 2136 MSG_PUTS(_(" (still running)")); | |
| 2137 # if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) | |
| 2138 process_still_running = TRUE; | |
| 2139 # endif | |
| 2140 } | |
| 2141 #endif | |
| 2142 } | |
| 2143 | |
| 2144 if (b0_magic_wrong(&b0)) | |
| 2145 { | |
|
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changeset
|
2146 #if defined(MSWIN) |
| 7 | 2147 if (STRNCMP(b0.b0_hname, "PC ", 3) == 0) |
| 2148 MSG_PUTS(_("\n [not usable with this version of Vim]")); | |
| 2149 else | |
| 2150 #endif | |
| 2151 MSG_PUTS(_("\n [not usable on this computer]")); | |
| 2152 } | |
| 2153 } | |
| 2154 } | |
| 2155 else | |
| 2156 MSG_PUTS(_(" [cannot be read]")); | |
| 2157 close(fd); | |
| 2158 } | |
| 2159 else | |
| 2160 MSG_PUTS(_(" [cannot be opened]")); | |
| 2161 msg_putchar('\n'); | |
| 2162 | |
| 2163 return x; | |
| 2164 } | |
| 2165 | |
| 2166 static int | |
|
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diff
changeset
|
2167 recov_file_names(char_u **names, char_u *path, int prepend_dot) |
| 7 | 2168 { |
| 2169 int num_names; | |
| 2170 | |
| 2171 /* | |
| 2172 * (Win32 and Win64) never short names, but do prepend a dot. | |
| 2173 * (Not MS-DOS or Win32 or Win64) maybe short name, maybe not: Try both. | |
| 2174 * Only use the short name if it is different. | |
| 2175 */ | |
| 2176 char_u *p; | |
| 2177 int i; | |
| 2178 # ifndef WIN3264 | |
| 2179 int shortname = curbuf->b_shortname; | |
| 2180 | |
| 2181 curbuf->b_shortname = FALSE; | |
| 2182 # endif | |
| 2183 | |
| 2184 num_names = 0; | |
| 2185 | |
| 2186 /* | |
| 2187 * May also add the file name with a dot prepended, for swap file in same | |
| 2188 * dir as original file. | |
| 2189 */ | |
| 2190 if (prepend_dot) | |
| 2191 { | |
| 2192 names[num_names] = modname(path, (char_u *)".sw?", TRUE); | |
| 2193 if (names[num_names] == NULL) | |
| 2194 goto end; | |
| 2195 ++num_names; | |
| 2196 } | |
| 2197 | |
| 2198 /* | |
| 2199 * Form the normal swap file name pattern by appending ".sw?". | |
| 2200 */ | |
| 2201 #ifdef VMS | |
| 2202 names[num_names] = concat_fnames(path, (char_u *)"_sw%", FALSE); | |
| 2203 #else | |
| 2204 names[num_names] = concat_fnames(path, (char_u *)".sw?", FALSE); | |
| 2205 #endif | |
| 2206 if (names[num_names] == NULL) | |
| 2207 goto end; | |
| 2208 if (num_names >= 1) /* check if we have the same name twice */ | |
| 2209 { | |
| 2210 p = names[num_names - 1]; | |
| 2211 i = (int)STRLEN(names[num_names - 1]) - (int)STRLEN(names[num_names]); | |
| 2212 if (i > 0) | |
| 2213 p += i; /* file name has been expanded to full path */ | |
| 2214 | |
| 2215 if (STRCMP(p, names[num_names]) != 0) | |
| 2216 ++num_names; | |
| 2217 else | |
| 2218 vim_free(names[num_names]); | |
| 2219 } | |
| 2220 else | |
| 2221 ++num_names; | |
| 2222 | |
| 2223 # ifndef WIN3264 | |
| 2224 /* | |
| 2225 * Also try with 'shortname' set, in case the file is on a DOS filesystem. | |
| 2226 */ | |
| 2227 curbuf->b_shortname = TRUE; | |
| 2228 #ifdef VMS | |
| 2229 names[num_names] = modname(path, (char_u *)"_sw%", FALSE); | |
| 2230 #else | |
| 2231 names[num_names] = modname(path, (char_u *)".sw?", FALSE); | |
| 2232 #endif | |
| 2233 if (names[num_names] == NULL) | |
| 2234 goto end; | |
| 2235 | |
| 2236 /* | |
| 2237 * Remove the one from 'shortname', if it's the same as with 'noshortname'. | |
| 2238 */ | |
| 2239 p = names[num_names]; | |
| 2240 i = STRLEN(names[num_names]) - STRLEN(names[num_names - 1]); | |
| 2241 if (i > 0) | |
| 2242 p += i; /* file name has been expanded to full path */ | |
| 2243 if (STRCMP(names[num_names - 1], p) == 0) | |
| 2244 vim_free(names[num_names]); | |
| 2245 else | |
| 2246 ++num_names; | |
| 2247 # endif | |
| 2248 | |
| 2249 end: | |
| 2250 # ifndef WIN3264 | |
| 2251 curbuf->b_shortname = shortname; | |
| 2252 # endif | |
| 2253 | |
| 2254 return num_names; | |
| 2255 } | |
| 2256 | |
| 2257 /* | |
| 2258 * sync all memlines | |
| 2259 * | |
| 2260 * If 'check_file' is TRUE, check if original file exists and was not changed. | |
| 2261 * If 'check_char' is TRUE, stop syncing when character becomes available, but | |
| 2262 * always sync at least one block. | |
| 2263 */ | |
| 2264 void | |
|
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2265 ml_sync_all(int check_file, int check_char) |
| 7 | 2266 { |
| 2267 buf_T *buf; | |
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2268 stat_T st; |
| 7 | 2269 |
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2270 FOR_ALL_BUFFERS(buf) |
| 7 | 2271 { |
| 2272 if (buf->b_ml.ml_mfp == NULL || buf->b_ml.ml_mfp->mf_fname == NULL) | |
| 2273 continue; /* no file */ | |
| 2274 | |
| 2275 ml_flush_line(buf); /* flush buffered line */ | |
| 2276 /* flush locked block */ | |
| 2277 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); | |
| 2278 if (bufIsChanged(buf) && check_file && mf_need_trans(buf->b_ml.ml_mfp) | |
| 2279 && buf->b_ffname != NULL) | |
| 2280 { | |
| 2281 /* | |
| 2282 * If the original file does not exist anymore or has been changed | |
| 2283 * call ml_preserve() to get rid of all negative numbered blocks. | |
| 2284 */ | |
| 2285 if (mch_stat((char *)buf->b_ffname, &st) == -1 | |
| 2286 || st.st_mtime != buf->b_mtime_read | |
|
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2287 || st.st_size != buf->b_orig_size) |
| 7 | 2288 { |
| 2289 ml_preserve(buf, FALSE); | |
| 2290 did_check_timestamps = FALSE; | |
| 2291 need_check_timestamps = TRUE; /* give message later */ | |
| 2292 } | |
| 2293 } | |
| 2294 if (buf->b_ml.ml_mfp->mf_dirty) | |
| 2295 { | |
| 2296 (void)mf_sync(buf->b_ml.ml_mfp, (check_char ? MFS_STOP : 0) | |
| 2297 | (bufIsChanged(buf) ? MFS_FLUSH : 0)); | |
| 2298 if (check_char && ui_char_avail()) /* character available now */ | |
| 2299 break; | |
| 2300 } | |
| 2301 } | |
| 2302 } | |
| 2303 | |
| 2304 /* | |
| 2305 * sync one buffer, including negative blocks | |
| 2306 * | |
| 2307 * after this all the blocks are in the swap file | |
| 2308 * | |
| 2309 * Used for the :preserve command and when the original file has been | |
| 2310 * changed or deleted. | |
| 2311 * | |
| 2312 * when message is TRUE the success of preserving is reported | |
| 2313 */ | |
| 2314 void | |
|
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diff
changeset
|
2315 ml_preserve(buf_T *buf, int message) |
| 7 | 2316 { |
| 2317 bhdr_T *hp; | |
| 2318 linenr_T lnum; | |
| 2319 memfile_T *mfp = buf->b_ml.ml_mfp; | |
| 2320 int status; | |
| 2321 int got_int_save = got_int; | |
| 2322 | |
| 2323 if (mfp == NULL || mfp->mf_fname == NULL) | |
| 2324 { | |
| 2325 if (message) | |
| 2326 EMSG(_("E313: Cannot preserve, there is no swap file")); | |
| 2327 return; | |
| 2328 } | |
| 2329 | |
| 2330 /* We only want to stop when interrupted here, not when interrupted | |
| 2331 * before. */ | |
| 2332 got_int = FALSE; | |
| 2333 | |
| 2334 ml_flush_line(buf); /* flush buffered line */ | |
| 2335 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush locked block */ | |
| 2336 status = mf_sync(mfp, MFS_ALL | MFS_FLUSH); | |
| 2337 | |
| 2338 /* stack is invalid after mf_sync(.., MFS_ALL) */ | |
| 2339 buf->b_ml.ml_stack_top = 0; | |
| 2340 | |
| 2341 /* | |
| 2342 * Some of the data blocks may have been changed from negative to | |
| 2343 * positive block number. In that case the pointer blocks need to be | |
| 2344 * updated. | |
| 2345 * | |
| 2346 * We don't know in which pointer block the references are, so we visit | |
| 2347 * all data blocks until there are no more translations to be done (or | |
| 2348 * we hit the end of the file, which can only happen in case a write fails, | |
| 2349 * e.g. when file system if full). | |
| 2350 * ml_find_line() does the work by translating the negative block numbers | |
| 2351 * when getting the first line of each data block. | |
| 2352 */ | |
| 2353 if (mf_need_trans(mfp) && !got_int) | |
| 2354 { | |
| 2355 lnum = 1; | |
| 2356 while (mf_need_trans(mfp) && lnum <= buf->b_ml.ml_line_count) | |
| 2357 { | |
| 2358 hp = ml_find_line(buf, lnum, ML_FIND); | |
| 2359 if (hp == NULL) | |
| 2360 { | |
| 2361 status = FAIL; | |
| 2362 goto theend; | |
| 2363 } | |
| 2364 CHECK(buf->b_ml.ml_locked_low != lnum, "low != lnum"); | |
| 2365 lnum = buf->b_ml.ml_locked_high + 1; | |
| 2366 } | |
| 2367 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush locked block */ | |
| 2368 /* sync the updated pointer blocks */ | |
| 2369 if (mf_sync(mfp, MFS_ALL | MFS_FLUSH) == FAIL) | |
| 2370 status = FAIL; | |
| 2371 buf->b_ml.ml_stack_top = 0; /* stack is invalid now */ | |
| 2372 } | |
| 2373 theend: | |
| 2374 got_int |= got_int_save; | |
| 2375 | |
| 2376 if (message) | |
| 2377 { | |
| 2378 if (status == OK) | |
| 2379 MSG(_("File preserved")); | |
| 2380 else | |
| 2381 EMSG(_("E314: Preserve failed")); | |
| 2382 } | |
| 2383 } | |
| 2384 | |
| 2385 /* | |
| 2386 * NOTE: The pointer returned by the ml_get_*() functions only remains valid | |
| 2387 * until the next call! | |
| 2388 * line1 = ml_get(1); | |
| 2389 * line2 = ml_get(2); // line1 is now invalid! | |
| 2390 * Make a copy of the line if necessary. | |
| 2391 */ | |
| 2392 /* | |
| 2657 | 2393 * Return a pointer to a (read-only copy of a) line. |
| 7 | 2394 * |
| 2395 * On failure an error message is given and IObuff is returned (to avoid | |
| 2396 * having to check for error everywhere). | |
| 2397 */ | |
| 2398 char_u * | |
|
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|
2399 ml_get(linenr_T lnum) |
| 7 | 2400 { |
| 2401 return ml_get_buf(curbuf, lnum, FALSE); | |
| 2402 } | |
| 2403 | |
| 2404 /* | |
| 2657 | 2405 * Return pointer to position "pos". |
| 7 | 2406 */ |
| 2407 char_u * | |
|
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|
2408 ml_get_pos(pos_T *pos) |
| 7 | 2409 { |
| 2410 return (ml_get_buf(curbuf, pos->lnum, FALSE) + pos->col); | |
| 2411 } | |
| 2412 | |
| 2413 /* | |
| 2657 | 2414 * Return pointer to cursor line. |
| 7 | 2415 */ |
| 2416 char_u * | |
|
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|
2417 ml_get_curline(void) |
| 7 | 2418 { |
| 2419 return ml_get_buf(curbuf, curwin->w_cursor.lnum, FALSE); | |
| 2420 } | |
| 2421 | |
| 2422 /* | |
| 2657 | 2423 * Return pointer to cursor position. |
| 7 | 2424 */ |
| 2425 char_u * | |
|
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|
2426 ml_get_cursor(void) |
| 7 | 2427 { |
| 2428 return (ml_get_buf(curbuf, curwin->w_cursor.lnum, FALSE) + | |
| 2429 curwin->w_cursor.col); | |
| 2430 } | |
| 2431 | |
| 2432 /* | |
| 2657 | 2433 * Return a pointer to a line in a specific buffer |
| 7 | 2434 * |
| 2435 * "will_change": if TRUE mark the buffer dirty (chars in the line will be | |
| 2436 * changed) | |
| 2437 */ | |
| 2438 char_u * | |
|
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|
2439 ml_get_buf( |
|
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|
2440 buf_T *buf, |
|
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|
2441 linenr_T lnum, |
|
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|
2442 int will_change) /* line will be changed */ |
| 7 | 2443 { |
| 1068 | 2444 bhdr_T *hp; |
| 2445 DATA_BL *dp; | |
| 2446 char_u *ptr; | |
| 2447 static int recursive = 0; | |
| 7 | 2448 |
| 2449 if (lnum > buf->b_ml.ml_line_count) /* invalid line number */ | |
| 2450 { | |
| 1068 | 2451 if (recursive == 0) |
| 2452 { | |
| 2453 /* Avoid giving this message for a recursive call, may happen when | |
| 2454 * the GUI redraws part of the text. */ | |
| 2455 ++recursive; | |
|
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|
2456 IEMSGN(_("E315: ml_get: invalid lnum: %ld"), lnum); |
| 1068 | 2457 --recursive; |
| 2458 } | |
| 7 | 2459 errorret: |
| 2460 STRCPY(IObuff, "???"); | |
| 2461 return IObuff; | |
| 2462 } | |
| 2463 if (lnum <= 0) /* pretend line 0 is line 1 */ | |
| 2464 lnum = 1; | |
| 2465 | |
| 2466 if (buf->b_ml.ml_mfp == NULL) /* there are no lines */ | |
| 2467 return (char_u *)""; | |
| 2468 | |
|
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2469 /* |
|
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2470 * See if it is the same line as requested last time. |
|
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2471 * Otherwise may need to flush last used line. |
|
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2472 * Don't use the last used line when 'swapfile' is reset, need to load all |
|
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2473 * blocks. |
|
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|
2474 */ |
| 1066 | 2475 if (buf->b_ml.ml_line_lnum != lnum || mf_dont_release) |
| 7 | 2476 { |
| 2477 ml_flush_line(buf); | |
| 2478 | |
| 2479 /* | |
| 2480 * Find the data block containing the line. | |
| 2481 * This also fills the stack with the blocks from the root to the data | |
| 2482 * block and releases any locked block. | |
| 2483 */ | |
| 2484 if ((hp = ml_find_line(buf, lnum, ML_FIND)) == NULL) | |
| 2485 { | |
| 1068 | 2486 if (recursive == 0) |
| 2487 { | |
| 2488 /* Avoid giving this message for a recursive call, may happen | |
| 2489 * when the GUI redraws part of the text. */ | |
| 2490 ++recursive; | |
|
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|
2491 IEMSGN(_("E316: ml_get: cannot find line %ld"), lnum); |
| 1068 | 2492 --recursive; |
| 2493 } | |
| 7 | 2494 goto errorret; |
| 2495 } | |
| 2496 | |
| 2497 dp = (DATA_BL *)(hp->bh_data); | |
| 2498 | |
| 2499 ptr = (char_u *)dp + ((dp->db_index[lnum - buf->b_ml.ml_locked_low]) & DB_INDEX_MASK); | |
| 2500 buf->b_ml.ml_line_ptr = ptr; | |
| 2501 buf->b_ml.ml_line_lnum = lnum; | |
| 2502 buf->b_ml.ml_flags &= ~ML_LINE_DIRTY; | |
| 2503 } | |
| 2504 if (will_change) | |
| 2505 buf->b_ml.ml_flags |= (ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 2506 | |
| 2507 return buf->b_ml.ml_line_ptr; | |
| 2508 } | |
| 2509 | |
| 2510 /* | |
| 2511 * Check if a line that was just obtained by a call to ml_get | |
| 2512 * is in allocated memory. | |
| 2513 */ | |
| 2514 int | |
|
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|
2515 ml_line_alloced(void) |
| 7 | 2516 { |
| 2517 return (curbuf->b_ml.ml_flags & ML_LINE_DIRTY); | |
| 2518 } | |
| 2519 | |
| 2520 /* | |
| 2521 * Append a line after lnum (may be 0 to insert a line in front of the file). | |
| 2522 * "line" does not need to be allocated, but can't be another line in a | |
| 2523 * buffer, unlocking may make it invalid. | |
| 2524 * | |
| 2525 * newfile: TRUE when starting to edit a new file, meaning that pe_old_lnum | |
| 2526 * will be set for recovery | |
| 2527 * Check: The caller of this function should probably also call | |
| 2528 * appended_lines(). | |
| 2529 * | |
| 2530 * return FAIL for failure, OK otherwise | |
| 2531 */ | |
| 2532 int | |
|
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|
2533 ml_append( |
|
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|
2534 linenr_T lnum, /* append after this line (can be 0) */ |
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|
2535 char_u *line, /* text of the new line */ |
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|
2536 colnr_T len, /* length of new line, including NUL, or 0 */ |
|
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|
2537 int newfile) /* flag, see above */ |
| 7 | 2538 { |
| 2539 /* When starting up, we might still need to create the memfile */ | |
|
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|
2540 if (curbuf->b_ml.ml_mfp == NULL && open_buffer(FALSE, NULL, 0) == FAIL) |
| 7 | 2541 return FAIL; |
| 2542 | |
| 2543 if (curbuf->b_ml.ml_line_lnum != 0) | |
| 2544 ml_flush_line(curbuf); | |
| 2545 return ml_append_int(curbuf, lnum, line, len, newfile, FALSE); | |
| 2546 } | |
| 2547 | |
|
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2548 #if defined(FEAT_SPELL) || defined(FEAT_QUICKFIX) || defined(PROTO) |
| 625 | 2549 /* |
| 2550 * Like ml_append() but for an arbitrary buffer. The buffer must already have | |
| 2551 * a memline. | |
| 2552 */ | |
| 2553 int | |
|
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|
2554 ml_append_buf( |
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|
2555 buf_T *buf, |
|
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|
2556 linenr_T lnum, /* append after this line (can be 0) */ |
|
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|
2557 char_u *line, /* text of the new line */ |
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|
2558 colnr_T len, /* length of new line, including NUL, or 0 */ |
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|
2559 int newfile) /* flag, see above */ |
| 625 | 2560 { |
| 2561 if (buf->b_ml.ml_mfp == NULL) | |
| 2562 return FAIL; | |
| 2563 | |
| 2564 if (buf->b_ml.ml_line_lnum != 0) | |
| 2565 ml_flush_line(buf); | |
| 2566 return ml_append_int(buf, lnum, line, len, newfile, FALSE); | |
| 2567 } | |
| 2568 #endif | |
| 2569 | |
| 7 | 2570 static int |
|
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2571 ml_append_int( |
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2572 buf_T *buf, |
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2573 linenr_T lnum, /* append after this line (can be 0) */ |
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|
2574 char_u *line, /* text of the new line */ |
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|
2575 colnr_T len, /* length of line, including NUL, or 0 */ |
|
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|
2576 int newfile, /* flag, see above */ |
|
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|
2577 int mark) /* mark the new line */ |
| 7 | 2578 { |
| 2579 int i; | |
| 2580 int line_count; /* number of indexes in current block */ | |
| 2581 int offset; | |
| 2582 int from, to; | |
| 2583 int space_needed; /* space needed for new line */ | |
| 2584 int page_size; | |
| 2585 int page_count; | |
| 2586 int db_idx; /* index for lnum in data block */ | |
| 2587 bhdr_T *hp; | |
| 2588 memfile_T *mfp; | |
| 2589 DATA_BL *dp; | |
| 2590 PTR_BL *pp; | |
| 2591 infoptr_T *ip; | |
| 2592 | |
| 2593 /* lnum out of range */ | |
| 2594 if (lnum > buf->b_ml.ml_line_count || buf->b_ml.ml_mfp == NULL) | |
| 2595 return FAIL; | |
| 2596 | |
| 2597 if (lowest_marked && lowest_marked > lnum) | |
| 2598 lowest_marked = lnum + 1; | |
| 2599 | |
| 2600 if (len == 0) | |
| 2601 len = (colnr_T)STRLEN(line) + 1; /* space needed for the text */ | |
| 2602 space_needed = len + INDEX_SIZE; /* space needed for text + index */ | |
| 2603 | |
| 2604 mfp = buf->b_ml.ml_mfp; | |
| 2605 page_size = mfp->mf_page_size; | |
| 2606 | |
| 2607 /* | |
| 2608 * find the data block containing the previous line | |
| 2609 * This also fills the stack with the blocks from the root to the data block | |
| 2610 * This also releases any locked block. | |
| 2611 */ | |
| 2612 if ((hp = ml_find_line(buf, lnum == 0 ? (linenr_T)1 : lnum, | |
| 2613 ML_INSERT)) == NULL) | |
| 2614 return FAIL; | |
| 2615 | |
| 2616 buf->b_ml.ml_flags &= ~ML_EMPTY; | |
| 2617 | |
| 2618 if (lnum == 0) /* got line one instead, correct db_idx */ | |
| 2619 db_idx = -1; /* careful, it is negative! */ | |
| 2620 else | |
| 2621 db_idx = lnum - buf->b_ml.ml_locked_low; | |
| 2622 /* get line count before the insertion */ | |
| 2623 line_count = buf->b_ml.ml_locked_high - buf->b_ml.ml_locked_low; | |
| 2624 | |
| 2625 dp = (DATA_BL *)(hp->bh_data); | |
| 2626 | |
| 2627 /* | |
| 2628 * If | |
| 2629 * - there is not enough room in the current block | |
| 2630 * - appending to the last line in the block | |
| 2631 * - not appending to the last line in the file | |
| 2632 * insert in front of the next block. | |
| 2633 */ | |
| 2634 if ((int)dp->db_free < space_needed && db_idx == line_count - 1 | |
| 2635 && lnum < buf->b_ml.ml_line_count) | |
| 2636 { | |
| 2637 /* | |
| 2638 * Now that the line is not going to be inserted in the block that we | |
| 2639 * expected, the line count has to be adjusted in the pointer blocks | |
| 2640 * by using ml_locked_lineadd. | |
| 2641 */ | |
| 2642 --(buf->b_ml.ml_locked_lineadd); | |
| 2643 --(buf->b_ml.ml_locked_high); | |
| 2644 if ((hp = ml_find_line(buf, lnum + 1, ML_INSERT)) == NULL) | |
| 2645 return FAIL; | |
| 2646 | |
| 2647 db_idx = -1; /* careful, it is negative! */ | |
| 2648 /* get line count before the insertion */ | |
| 2649 line_count = buf->b_ml.ml_locked_high - buf->b_ml.ml_locked_low; | |
| 2650 CHECK(buf->b_ml.ml_locked_low != lnum + 1, "locked_low != lnum + 1"); | |
| 2651 | |
| 2652 dp = (DATA_BL *)(hp->bh_data); | |
| 2653 } | |
| 2654 | |
| 2655 ++buf->b_ml.ml_line_count; | |
| 2656 | |
| 2657 if ((int)dp->db_free >= space_needed) /* enough room in data block */ | |
| 2658 { | |
| 2659 /* | |
| 2660 * Insert new line in existing data block, or in data block allocated above. | |
| 2661 */ | |
| 2662 dp->db_txt_start -= len; | |
| 2663 dp->db_free -= space_needed; | |
| 2664 ++(dp->db_line_count); | |
| 2665 | |
| 2666 /* | |
| 2667 * move the text of the lines that follow to the front | |
| 2668 * adjust the indexes of the lines that follow | |
| 2669 */ | |
| 2670 if (line_count > db_idx + 1) /* if there are following lines */ | |
| 2671 { | |
| 2672 /* | |
| 2673 * Offset is the start of the previous line. | |
| 2674 * This will become the character just after the new line. | |
| 2675 */ | |
| 2676 if (db_idx < 0) | |
| 2677 offset = dp->db_txt_end; | |
| 2678 else | |
| 2679 offset = ((dp->db_index[db_idx]) & DB_INDEX_MASK); | |
| 2680 mch_memmove((char *)dp + dp->db_txt_start, | |
| 2681 (char *)dp + dp->db_txt_start + len, | |
| 2682 (size_t)(offset - (dp->db_txt_start + len))); | |
| 2683 for (i = line_count - 1; i > db_idx; --i) | |
| 2684 dp->db_index[i + 1] = dp->db_index[i] - len; | |
| 2685 dp->db_index[db_idx + 1] = offset - len; | |
| 2686 } | |
| 2687 else /* add line at the end */ | |
| 2688 dp->db_index[db_idx + 1] = dp->db_txt_start; | |
| 2689 | |
| 2690 /* | |
| 2691 * copy the text into the block | |
| 2692 */ | |
| 2693 mch_memmove((char *)dp + dp->db_index[db_idx + 1], line, (size_t)len); | |
| 2694 if (mark) | |
| 2695 dp->db_index[db_idx + 1] |= DB_MARKED; | |
| 2696 | |
| 2697 /* | |
| 2698 * Mark the block dirty. | |
| 2699 */ | |
| 2700 buf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 2701 if (!newfile) | |
| 2702 buf->b_ml.ml_flags |= ML_LOCKED_POS; | |
| 2703 } | |
| 2704 else /* not enough space in data block */ | |
| 2705 { | |
| 2706 /* | |
| 2707 * If there is not enough room we have to create a new data block and copy some | |
| 2708 * lines into it. | |
| 2709 * Then we have to insert an entry in the pointer block. | |
| 2710 * If this pointer block also is full, we go up another block, and so on, up | |
| 2711 * to the root if necessary. | |
| 2712 * The line counts in the pointer blocks have already been adjusted by | |
| 2713 * ml_find_line(). | |
| 2714 */ | |
| 2715 long line_count_left, line_count_right; | |
| 2716 int page_count_left, page_count_right; | |
| 2717 bhdr_T *hp_left; | |
| 2718 bhdr_T *hp_right; | |
| 2719 bhdr_T *hp_new; | |
| 2720 int lines_moved; | |
| 2721 int data_moved = 0; /* init to shut up gcc */ | |
| 2722 int total_moved = 0; /* init to shut up gcc */ | |
| 2723 DATA_BL *dp_right, *dp_left; | |
| 2724 int stack_idx; | |
| 2725 int in_left; | |
| 2726 int lineadd; | |
| 2727 blocknr_T bnum_left, bnum_right; | |
| 2728 linenr_T lnum_left, lnum_right; | |
| 2729 int pb_idx; | |
| 2730 PTR_BL *pp_new; | |
| 2731 | |
| 2732 /* | |
| 2733 * We are going to allocate a new data block. Depending on the | |
| 2734 * situation it will be put to the left or right of the existing | |
| 2735 * block. If possible we put the new line in the left block and move | |
| 2736 * the lines after it to the right block. Otherwise the new line is | |
| 2737 * also put in the right block. This method is more efficient when | |
| 2738 * inserting a lot of lines at one place. | |
| 2739 */ | |
| 2740 if (db_idx < 0) /* left block is new, right block is existing */ | |
| 2741 { | |
| 2742 lines_moved = 0; | |
| 2743 in_left = TRUE; | |
| 2744 /* space_needed does not change */ | |
| 2745 } | |
| 2746 else /* left block is existing, right block is new */ | |
| 2747 { | |
| 2748 lines_moved = line_count - db_idx - 1; | |
| 2749 if (lines_moved == 0) | |
| 2750 in_left = FALSE; /* put new line in right block */ | |
| 2751 /* space_needed does not change */ | |
| 2752 else | |
| 2753 { | |
| 2754 data_moved = ((dp->db_index[db_idx]) & DB_INDEX_MASK) - | |
| 2755 dp->db_txt_start; | |
| 2756 total_moved = data_moved + lines_moved * INDEX_SIZE; | |
| 2757 if ((int)dp->db_free + total_moved >= space_needed) | |
| 2758 { | |
| 2759 in_left = TRUE; /* put new line in left block */ | |
| 2760 space_needed = total_moved; | |
| 2761 } | |
| 2762 else | |
| 2763 { | |
| 2764 in_left = FALSE; /* put new line in right block */ | |
| 2765 space_needed += total_moved; | |
| 2766 } | |
| 2767 } | |
| 2768 } | |
| 2769 | |
| 2770 page_count = ((space_needed + HEADER_SIZE) + page_size - 1) / page_size; | |
| 2771 if ((hp_new = ml_new_data(mfp, newfile, page_count)) == NULL) | |
| 2772 { | |
| 2773 /* correct line counts in pointer blocks */ | |
| 2774 --(buf->b_ml.ml_locked_lineadd); | |
| 2775 --(buf->b_ml.ml_locked_high); | |
| 2776 return FAIL; | |
| 2777 } | |
| 2778 if (db_idx < 0) /* left block is new */ | |
| 2779 { | |
| 2780 hp_left = hp_new; | |
| 2781 hp_right = hp; | |
| 2782 line_count_left = 0; | |
| 2783 line_count_right = line_count; | |
| 2784 } | |
| 2785 else /* right block is new */ | |
| 2786 { | |
| 2787 hp_left = hp; | |
| 2788 hp_right = hp_new; | |
| 2789 line_count_left = line_count; | |
| 2790 line_count_right = 0; | |
| 2791 } | |
| 2792 dp_right = (DATA_BL *)(hp_right->bh_data); | |
| 2793 dp_left = (DATA_BL *)(hp_left->bh_data); | |
| 2794 bnum_left = hp_left->bh_bnum; | |
| 2795 bnum_right = hp_right->bh_bnum; | |
| 2796 page_count_left = hp_left->bh_page_count; | |
| 2797 page_count_right = hp_right->bh_page_count; | |
| 2798 | |
| 2799 /* | |
| 2800 * May move the new line into the right/new block. | |
| 2801 */ | |
| 2802 if (!in_left) | |
| 2803 { | |
| 2804 dp_right->db_txt_start -= len; | |
| 2805 dp_right->db_free -= len + INDEX_SIZE; | |
| 2806 dp_right->db_index[0] = dp_right->db_txt_start; | |
| 2807 if (mark) | |
| 2808 dp_right->db_index[0] |= DB_MARKED; | |
| 2809 | |
| 2810 mch_memmove((char *)dp_right + dp_right->db_txt_start, | |
| 2811 line, (size_t)len); | |
| 2812 ++line_count_right; | |
| 2813 } | |
| 2814 /* | |
| 2815 * may move lines from the left/old block to the right/new one. | |
| 2816 */ | |
| 2817 if (lines_moved) | |
| 2818 { | |
| 2819 /* | |
| 2820 */ | |
| 2821 dp_right->db_txt_start -= data_moved; | |
| 2822 dp_right->db_free -= total_moved; | |
| 2823 mch_memmove((char *)dp_right + dp_right->db_txt_start, | |
| 2824 (char *)dp_left + dp_left->db_txt_start, | |
| 2825 (size_t)data_moved); | |
| 2826 offset = dp_right->db_txt_start - dp_left->db_txt_start; | |
| 2827 dp_left->db_txt_start += data_moved; | |
| 2828 dp_left->db_free += total_moved; | |
| 2829 | |
| 2830 /* | |
| 2831 * update indexes in the new block | |
| 2832 */ | |
| 2833 for (to = line_count_right, from = db_idx + 1; | |
| 2834 from < line_count_left; ++from, ++to) | |
| 2835 dp_right->db_index[to] = dp->db_index[from] + offset; | |
| 2836 line_count_right += lines_moved; | |
| 2837 line_count_left -= lines_moved; | |
| 2838 } | |
| 2839 | |
| 2840 /* | |
| 2841 * May move the new line into the left (old or new) block. | |
| 2842 */ | |
| 2843 if (in_left) | |
| 2844 { | |
| 2845 dp_left->db_txt_start -= len; | |
| 2846 dp_left->db_free -= len + INDEX_SIZE; | |
| 2847 dp_left->db_index[line_count_left] = dp_left->db_txt_start; | |
| 2848 if (mark) | |
| 2849 dp_left->db_index[line_count_left] |= DB_MARKED; | |
| 2850 mch_memmove((char *)dp_left + dp_left->db_txt_start, | |
| 2851 line, (size_t)len); | |
| 2852 ++line_count_left; | |
| 2853 } | |
| 2854 | |
| 2855 if (db_idx < 0) /* left block is new */ | |
| 2856 { | |
| 2857 lnum_left = lnum + 1; | |
| 2858 lnum_right = 0; | |
| 2859 } | |
| 2860 else /* right block is new */ | |
| 2861 { | |
| 2862 lnum_left = 0; | |
| 2863 if (in_left) | |
| 2864 lnum_right = lnum + 2; | |
| 2865 else | |
| 2866 lnum_right = lnum + 1; | |
| 2867 } | |
| 2868 dp_left->db_line_count = line_count_left; | |
| 2869 dp_right->db_line_count = line_count_right; | |
| 2870 | |
| 2871 /* | |
| 2872 * release the two data blocks | |
| 2873 * The new one (hp_new) already has a correct blocknumber. | |
| 2874 * The old one (hp, in ml_locked) gets a positive blocknumber if | |
| 2875 * we changed it and we are not editing a new file. | |
| 2876 */ | |
| 2877 if (lines_moved || in_left) | |
| 2878 buf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 2879 if (!newfile && db_idx >= 0 && in_left) | |
| 2880 buf->b_ml.ml_flags |= ML_LOCKED_POS; | |
| 2881 mf_put(mfp, hp_new, TRUE, FALSE); | |
| 2882 | |
| 2883 /* | |
| 2884 * flush the old data block | |
| 2885 * set ml_locked_lineadd to 0, because the updating of the | |
| 2886 * pointer blocks is done below | |
| 2887 */ | |
| 2888 lineadd = buf->b_ml.ml_locked_lineadd; | |
| 2889 buf->b_ml.ml_locked_lineadd = 0; | |
| 2890 ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush data block */ | |
| 2891 | |
| 2892 /* | |
| 2893 * update pointer blocks for the new data block | |
| 2894 */ | |
| 2895 for (stack_idx = buf->b_ml.ml_stack_top - 1; stack_idx >= 0; | |
| 2896 --stack_idx) | |
| 2897 { | |
| 2898 ip = &(buf->b_ml.ml_stack[stack_idx]); | |
| 2899 pb_idx = ip->ip_index; | |
| 2900 if ((hp = mf_get(mfp, ip->ip_bnum, 1)) == NULL) | |
| 2901 return FAIL; | |
| 2902 pp = (PTR_BL *)(hp->bh_data); /* must be pointer block */ | |
| 2903 if (pp->pb_id != PTR_ID) | |
| 2904 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2905 IEMSG(_("E317: pointer block id wrong 3")); |
| 7 | 2906 mf_put(mfp, hp, FALSE, FALSE); |
| 2907 return FAIL; | |
| 2908 } | |
| 2909 /* | |
| 2910 * TODO: If the pointer block is full and we are adding at the end | |
| 2911 * try to insert in front of the next block | |
| 2912 */ | |
| 2913 /* block not full, add one entry */ | |
| 2914 if (pp->pb_count < pp->pb_count_max) | |
| 2915 { | |
| 2916 if (pb_idx + 1 < (int)pp->pb_count) | |
| 2917 mch_memmove(&pp->pb_pointer[pb_idx + 2], | |
| 2918 &pp->pb_pointer[pb_idx + 1], | |
| 2919 (size_t)(pp->pb_count - pb_idx - 1) * sizeof(PTR_EN)); | |
| 2920 ++pp->pb_count; | |
| 2921 pp->pb_pointer[pb_idx].pe_line_count = line_count_left; | |
| 2922 pp->pb_pointer[pb_idx].pe_bnum = bnum_left; | |
| 2923 pp->pb_pointer[pb_idx].pe_page_count = page_count_left; | |
| 2924 pp->pb_pointer[pb_idx + 1].pe_line_count = line_count_right; | |
| 2925 pp->pb_pointer[pb_idx + 1].pe_bnum = bnum_right; | |
| 2926 pp->pb_pointer[pb_idx + 1].pe_page_count = page_count_right; | |
| 2927 | |
| 2928 if (lnum_left != 0) | |
| 2929 pp->pb_pointer[pb_idx].pe_old_lnum = lnum_left; | |
| 2930 if (lnum_right != 0) | |
| 2931 pp->pb_pointer[pb_idx + 1].pe_old_lnum = lnum_right; | |
| 2932 | |
| 2933 mf_put(mfp, hp, TRUE, FALSE); | |
| 2934 buf->b_ml.ml_stack_top = stack_idx + 1; /* truncate stack */ | |
| 2935 | |
| 2936 if (lineadd) | |
| 2937 { | |
| 2938 --(buf->b_ml.ml_stack_top); | |
| 1167 | 2939 /* fix line count for rest of blocks in the stack */ |
| 7 | 2940 ml_lineadd(buf, lineadd); |
| 2941 /* fix stack itself */ | |
| 2942 buf->b_ml.ml_stack[buf->b_ml.ml_stack_top].ip_high += | |
| 2943 lineadd; | |
| 2944 ++(buf->b_ml.ml_stack_top); | |
| 2945 } | |
| 2946 | |
| 2947 /* | |
| 2948 * We are finished, break the loop here. | |
| 2949 */ | |
| 2950 break; | |
| 2951 } | |
| 2952 else /* pointer block full */ | |
| 2953 { | |
| 2954 /* | |
| 2955 * split the pointer block | |
| 2956 * allocate a new pointer block | |
| 2957 * move some of the pointer into the new block | |
| 2958 * prepare for updating the parent block | |
| 2959 */ | |
| 2960 for (;;) /* do this twice when splitting block 1 */ | |
| 2961 { | |
| 2962 hp_new = ml_new_ptr(mfp); | |
| 2963 if (hp_new == NULL) /* TODO: try to fix tree */ | |
| 2964 return FAIL; | |
| 2965 pp_new = (PTR_BL *)(hp_new->bh_data); | |
| 2966 | |
| 2967 if (hp->bh_bnum != 1) | |
| 2968 break; | |
| 2969 | |
| 2970 /* | |
| 2971 * if block 1 becomes full the tree is given an extra level | |
| 2972 * The pointers from block 1 are moved into the new block. | |
| 2973 * block 1 is updated to point to the new block | |
| 2974 * then continue to split the new block | |
| 2975 */ | |
| 2976 mch_memmove(pp_new, pp, (size_t)page_size); | |
| 2977 pp->pb_count = 1; | |
| 2978 pp->pb_pointer[0].pe_bnum = hp_new->bh_bnum; | |
| 2979 pp->pb_pointer[0].pe_line_count = buf->b_ml.ml_line_count; | |
| 2980 pp->pb_pointer[0].pe_old_lnum = 1; | |
| 2981 pp->pb_pointer[0].pe_page_count = 1; | |
| 2982 mf_put(mfp, hp, TRUE, FALSE); /* release block 1 */ | |
| 2983 hp = hp_new; /* new block is to be split */ | |
| 2984 pp = pp_new; | |
| 2985 CHECK(stack_idx != 0, _("stack_idx should be 0")); | |
| 2986 ip->ip_index = 0; | |
| 2987 ++stack_idx; /* do block 1 again later */ | |
| 2988 } | |
| 2989 /* | |
| 2990 * move the pointers after the current one to the new block | |
| 2991 * If there are none, the new entry will be in the new block. | |
| 2992 */ | |
| 2993 total_moved = pp->pb_count - pb_idx - 1; | |
| 2994 if (total_moved) | |
| 2995 { | |
| 2996 mch_memmove(&pp_new->pb_pointer[0], | |
| 2997 &pp->pb_pointer[pb_idx + 1], | |
| 2998 (size_t)(total_moved) * sizeof(PTR_EN)); | |
| 2999 pp_new->pb_count = total_moved; | |
| 3000 pp->pb_count -= total_moved - 1; | |
| 3001 pp->pb_pointer[pb_idx + 1].pe_bnum = bnum_right; | |
| 3002 pp->pb_pointer[pb_idx + 1].pe_line_count = line_count_right; | |
| 3003 pp->pb_pointer[pb_idx + 1].pe_page_count = page_count_right; | |
| 3004 if (lnum_right) | |
| 3005 pp->pb_pointer[pb_idx + 1].pe_old_lnum = lnum_right; | |
| 3006 } | |
| 3007 else | |
| 3008 { | |
| 3009 pp_new->pb_count = 1; | |
| 3010 pp_new->pb_pointer[0].pe_bnum = bnum_right; | |
| 3011 pp_new->pb_pointer[0].pe_line_count = line_count_right; | |
| 3012 pp_new->pb_pointer[0].pe_page_count = page_count_right; | |
| 3013 pp_new->pb_pointer[0].pe_old_lnum = lnum_right; | |
| 3014 } | |
| 3015 pp->pb_pointer[pb_idx].pe_bnum = bnum_left; | |
| 3016 pp->pb_pointer[pb_idx].pe_line_count = line_count_left; | |
| 3017 pp->pb_pointer[pb_idx].pe_page_count = page_count_left; | |
| 3018 if (lnum_left) | |
| 3019 pp->pb_pointer[pb_idx].pe_old_lnum = lnum_left; | |
| 3020 lnum_left = 0; | |
| 3021 lnum_right = 0; | |
| 3022 | |
| 3023 /* | |
| 3024 * recompute line counts | |
| 3025 */ | |
| 3026 line_count_right = 0; | |
| 3027 for (i = 0; i < (int)pp_new->pb_count; ++i) | |
| 3028 line_count_right += pp_new->pb_pointer[i].pe_line_count; | |
| 3029 line_count_left = 0; | |
| 3030 for (i = 0; i < (int)pp->pb_count; ++i) | |
| 3031 line_count_left += pp->pb_pointer[i].pe_line_count; | |
| 3032 | |
| 3033 bnum_left = hp->bh_bnum; | |
| 3034 bnum_right = hp_new->bh_bnum; | |
| 3035 page_count_left = 1; | |
| 3036 page_count_right = 1; | |
| 3037 mf_put(mfp, hp, TRUE, FALSE); | |
| 3038 mf_put(mfp, hp_new, TRUE, FALSE); | |
| 3039 } | |
| 3040 } | |
| 3041 | |
| 3042 /* | |
| 3043 * Safety check: fallen out of for loop? | |
| 3044 */ | |
| 3045 if (stack_idx < 0) | |
| 3046 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3047 IEMSG(_("E318: Updated too many blocks?")); |
| 7 | 3048 buf->b_ml.ml_stack_top = 0; /* invalidate stack */ |
| 3049 } | |
| 3050 } | |
| 3051 | |
| 3052 #ifdef FEAT_BYTEOFF | |
| 3053 /* The line was inserted below 'lnum' */ | |
| 3054 ml_updatechunk(buf, lnum + 1, (long)len, ML_CHNK_ADDLINE); | |
| 3055 #endif | |
| 3056 #ifdef FEAT_NETBEANS_INTG | |
| 2210 | 3057 if (netbeans_active()) |
| 7 | 3058 { |
| 3059 if (STRLEN(line) > 0) | |
| 835 | 3060 netbeans_inserted(buf, lnum+1, (colnr_T)0, line, (int)STRLEN(line)); |
| 34 | 3061 netbeans_inserted(buf, lnum+1, (colnr_T)STRLEN(line), |
| 7 | 3062 (char_u *)"\n", 1); |
| 3063 } | |
| 3064 #endif | |
|
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commit https://github.com/vim/vim/commit/509ce2a558e7e0c03242e32e844255af52f1c821
Christian Brabandt <cb@256bit.org>
parents:
8422
diff
changeset
|
3065 #ifdef FEAT_JOB_CHANNEL |
|
8422
5d2c84be23b5
commit https://github.com/vim/vim/commit/99ef06296f3c37490511c03786a2c8672e015c56
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3066 if (buf->b_write_to_channel) |
|
5d2c84be23b5
commit https://github.com/vim/vim/commit/99ef06296f3c37490511c03786a2c8672e015c56
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3067 channel_write_new_lines(buf); |
|
5d2c84be23b5
commit https://github.com/vim/vim/commit/99ef06296f3c37490511c03786a2c8672e015c56
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3068 #endif |
|
5d2c84be23b5
commit https://github.com/vim/vim/commit/99ef06296f3c37490511c03786a2c8672e015c56
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3069 |
| 7 | 3070 return OK; |
| 3071 } | |
| 3072 | |
| 3073 /* | |
| 625 | 3074 * Replace line lnum, with buffering, in current buffer. |
| 7 | 3075 * |
| 720 | 3076 * If "copy" is TRUE, make a copy of the line, otherwise the line has been |
| 7 | 3077 * copied to allocated memory already. |
| 3078 * | |
| 3079 * Check: The caller of this function should probably also call | |
| 3080 * changed_lines(), unless update_screen(NOT_VALID) is used. | |
| 3081 * | |
| 3082 * return FAIL for failure, OK otherwise | |
| 3083 */ | |
| 3084 int | |
|
7827
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3085 ml_replace(linenr_T lnum, char_u *line, int copy) |
| 7 | 3086 { |
| 3087 if (line == NULL) /* just checking... */ | |
| 3088 return FAIL; | |
| 3089 | |
| 3090 /* When starting up, we might still need to create the memfile */ | |
|
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diff
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|
3091 if (curbuf->b_ml.ml_mfp == NULL && open_buffer(FALSE, NULL, 0) == FAIL) |
| 7 | 3092 return FAIL; |
| 3093 | |
| 3094 if (copy && (line = vim_strsave(line)) == NULL) /* allocate memory */ | |
| 3095 return FAIL; | |
| 3096 #ifdef FEAT_NETBEANS_INTG | |
| 2210 | 3097 if (netbeans_active()) |
| 7 | 3098 { |
| 3099 netbeans_removed(curbuf, lnum, 0, (long)STRLEN(ml_get(lnum))); | |
| 835 | 3100 netbeans_inserted(curbuf, lnum, 0, line, (int)STRLEN(line)); |
| 7 | 3101 } |
| 3102 #endif | |
| 3103 if (curbuf->b_ml.ml_line_lnum != lnum) /* other line buffered */ | |
| 3104 ml_flush_line(curbuf); /* flush it */ | |
| 3105 else if (curbuf->b_ml.ml_flags & ML_LINE_DIRTY) /* same line allocated */ | |
| 3106 vim_free(curbuf->b_ml.ml_line_ptr); /* free it */ | |
| 3107 curbuf->b_ml.ml_line_ptr = line; | |
| 3108 curbuf->b_ml.ml_line_lnum = lnum; | |
| 3109 curbuf->b_ml.ml_flags = (curbuf->b_ml.ml_flags | ML_LINE_DIRTY) & ~ML_EMPTY; | |
| 3110 | |
| 3111 return OK; | |
| 3112 } | |
| 3113 | |
| 3114 /* | |
|
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changeset
|
3115 * Delete line "lnum" in the current buffer. |
|
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diff
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|
3116 * When "message" is TRUE may give a "No lines in buffer" message. |
| 7 | 3117 * |
| 3118 * Check: The caller of this function should probably also call | |
| 3119 * deleted_lines() after this. | |
| 3120 * | |
| 3121 * return FAIL for failure, OK otherwise | |
| 3122 */ | |
| 3123 int | |
|
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7803
diff
changeset
|
3124 ml_delete(linenr_T lnum, int message) |
| 7 | 3125 { |
| 3126 ml_flush_line(curbuf); | |
| 3127 return ml_delete_int(curbuf, lnum, message); | |
| 3128 } | |
| 3129 | |
| 3130 static int | |
|
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parents:
7803
diff
changeset
|
3131 ml_delete_int(buf_T *buf, linenr_T lnum, int message) |
| 7 | 3132 { |
| 3133 bhdr_T *hp; | |
| 3134 memfile_T *mfp; | |
| 3135 DATA_BL *dp; | |
| 3136 PTR_BL *pp; | |
| 3137 infoptr_T *ip; | |
| 3138 int count; /* number of entries in block */ | |
| 3139 int idx; | |
| 3140 int stack_idx; | |
| 3141 int text_start; | |
| 3142 int line_start; | |
| 3143 long line_size; | |
| 3144 int i; | |
| 3145 | |
| 3146 if (lnum < 1 || lnum > buf->b_ml.ml_line_count) | |
| 3147 return FAIL; | |
| 3148 | |
| 3149 if (lowest_marked && lowest_marked > lnum) | |
| 3150 lowest_marked--; | |
| 3151 | |
| 3152 /* | |
| 3153 * If the file becomes empty the last line is replaced by an empty line. | |
| 3154 */ | |
| 3155 if (buf->b_ml.ml_line_count == 1) /* file becomes empty */ | |
| 3156 { | |
| 3157 if (message | |
| 3158 #ifdef FEAT_NETBEANS_INTG | |
| 3159 && !netbeansSuppressNoLines | |
| 3160 #endif | |
| 3161 ) | |
| 680 | 3162 set_keep_msg((char_u *)_(no_lines_msg), 0); |
| 3163 | |
| 4352 | 3164 /* FEAT_BYTEOFF already handled in there, don't worry 'bout it below */ |
| 7 | 3165 i = ml_replace((linenr_T)1, (char_u *)"", TRUE); |
| 3166 buf->b_ml.ml_flags |= ML_EMPTY; | |
| 3167 | |
| 3168 return i; | |
| 3169 } | |
| 3170 | |
| 3171 /* | |
| 3172 * find the data block containing the line | |
| 3173 * This also fills the stack with the blocks from the root to the data block | |
| 3174 * This also releases any locked block. | |
| 3175 */ | |
| 3176 mfp = buf->b_ml.ml_mfp; | |
| 3177 if (mfp == NULL) | |
| 3178 return FAIL; | |
| 3179 | |
| 3180 if ((hp = ml_find_line(buf, lnum, ML_DELETE)) == NULL) | |
| 3181 return FAIL; | |
| 3182 | |
| 3183 dp = (DATA_BL *)(hp->bh_data); | |
| 3184 /* compute line count before the delete */ | |
| 3185 count = (long)(buf->b_ml.ml_locked_high) | |
| 3186 - (long)(buf->b_ml.ml_locked_low) + 2; | |
| 3187 idx = lnum - buf->b_ml.ml_locked_low; | |
| 3188 | |
| 3189 --buf->b_ml.ml_line_count; | |
| 3190 | |
| 3191 line_start = ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 3192 if (idx == 0) /* first line in block, text at the end */ | |
| 3193 line_size = dp->db_txt_end - line_start; | |
| 3194 else | |
| 3195 line_size = ((dp->db_index[idx - 1]) & DB_INDEX_MASK) - line_start; | |
| 3196 | |
| 3197 #ifdef FEAT_NETBEANS_INTG | |
| 2210 | 3198 if (netbeans_active()) |
| 34 | 3199 netbeans_removed(buf, lnum, 0, (long)line_size); |
| 7 | 3200 #endif |
| 3201 | |
| 3202 /* | |
| 3203 * special case: If there is only one line in the data block it becomes empty. | |
| 3204 * Then we have to remove the entry, pointing to this data block, from the | |
| 3205 * pointer block. If this pointer block also becomes empty, we go up another | |
| 3206 * block, and so on, up to the root if necessary. | |
| 3207 * The line counts in the pointer blocks have already been adjusted by | |
| 3208 * ml_find_line(). | |
| 3209 */ | |
| 3210 if (count == 1) | |
| 3211 { | |
| 3212 mf_free(mfp, hp); /* free the data block */ | |
| 3213 buf->b_ml.ml_locked = NULL; | |
| 3214 | |
| 2823 | 3215 for (stack_idx = buf->b_ml.ml_stack_top - 1; stack_idx >= 0; |
| 3216 --stack_idx) | |
| 7 | 3217 { |
| 3218 buf->b_ml.ml_stack_top = 0; /* stack is invalid when failing */ | |
| 3219 ip = &(buf->b_ml.ml_stack[stack_idx]); | |
| 3220 idx = ip->ip_index; | |
| 3221 if ((hp = mf_get(mfp, ip->ip_bnum, 1)) == NULL) | |
| 3222 return FAIL; | |
| 3223 pp = (PTR_BL *)(hp->bh_data); /* must be pointer block */ | |
| 3224 if (pp->pb_id != PTR_ID) | |
| 3225 { | |
|
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parents:
10042
diff
changeset
|
3226 IEMSG(_("E317: pointer block id wrong 4")); |
| 7 | 3227 mf_put(mfp, hp, FALSE, FALSE); |
| 3228 return FAIL; | |
| 3229 } | |
| 3230 count = --(pp->pb_count); | |
| 3231 if (count == 0) /* the pointer block becomes empty! */ | |
| 3232 mf_free(mfp, hp); | |
| 3233 else | |
| 3234 { | |
| 3235 if (count != idx) /* move entries after the deleted one */ | |
| 3236 mch_memmove(&pp->pb_pointer[idx], &pp->pb_pointer[idx + 1], | |
| 3237 (size_t)(count - idx) * sizeof(PTR_EN)); | |
| 3238 mf_put(mfp, hp, TRUE, FALSE); | |
| 3239 | |
| 3240 buf->b_ml.ml_stack_top = stack_idx; /* truncate stack */ | |
| 1167 | 3241 /* fix line count for rest of blocks in the stack */ |
| 3242 if (buf->b_ml.ml_locked_lineadd != 0) | |
| 7 | 3243 { |
| 3244 ml_lineadd(buf, buf->b_ml.ml_locked_lineadd); | |
| 3245 buf->b_ml.ml_stack[buf->b_ml.ml_stack_top].ip_high += | |
| 1167 | 3246 buf->b_ml.ml_locked_lineadd; |
| 7 | 3247 } |
| 3248 ++(buf->b_ml.ml_stack_top); | |
| 3249 | |
| 3250 break; | |
| 3251 } | |
| 3252 } | |
| 3253 CHECK(stack_idx < 0, _("deleted block 1?")); | |
| 3254 } | |
| 3255 else | |
| 3256 { | |
| 3257 /* | |
| 3258 * delete the text by moving the next lines forwards | |
| 3259 */ | |
| 3260 text_start = dp->db_txt_start; | |
| 3261 mch_memmove((char *)dp + text_start + line_size, | |
| 3262 (char *)dp + text_start, (size_t)(line_start - text_start)); | |
| 3263 | |
| 3264 /* | |
| 3265 * delete the index by moving the next indexes backwards | |
| 3266 * Adjust the indexes for the text movement. | |
| 3267 */ | |
| 3268 for (i = idx; i < count - 1; ++i) | |
| 3269 dp->db_index[i] = dp->db_index[i + 1] + line_size; | |
| 3270 | |
| 3271 dp->db_free += line_size + INDEX_SIZE; | |
| 3272 dp->db_txt_start += line_size; | |
| 3273 --(dp->db_line_count); | |
| 3274 | |
| 3275 /* | |
| 3276 * mark the block dirty and make sure it is in the file (for recovery) | |
| 3277 */ | |
| 3278 buf->b_ml.ml_flags |= (ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 3279 } | |
| 3280 | |
| 3281 #ifdef FEAT_BYTEOFF | |
| 3282 ml_updatechunk(buf, lnum, line_size, ML_CHNK_DELLINE); | |
| 3283 #endif | |
| 3284 return OK; | |
| 3285 } | |
| 3286 | |
| 3287 /* | |
| 3288 * set the B_MARKED flag for line 'lnum' | |
| 3289 */ | |
| 3290 void | |
|
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7803
diff
changeset
|
3291 ml_setmarked(linenr_T lnum) |
| 7 | 3292 { |
| 3293 bhdr_T *hp; | |
| 3294 DATA_BL *dp; | |
| 3295 /* invalid line number */ | |
| 3296 if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count | |
| 3297 || curbuf->b_ml.ml_mfp == NULL) | |
| 3298 return; /* give error message? */ | |
| 3299 | |
| 3300 if (lowest_marked == 0 || lowest_marked > lnum) | |
| 3301 lowest_marked = lnum; | |
| 3302 | |
| 3303 /* | |
| 3304 * find the data block containing the line | |
| 3305 * This also fills the stack with the blocks from the root to the data block | |
| 3306 * This also releases any locked block. | |
| 3307 */ | |
| 3308 if ((hp = ml_find_line(curbuf, lnum, ML_FIND)) == NULL) | |
| 3309 return; /* give error message? */ | |
| 3310 | |
| 3311 dp = (DATA_BL *)(hp->bh_data); | |
| 3312 dp->db_index[lnum - curbuf->b_ml.ml_locked_low] |= DB_MARKED; | |
| 3313 curbuf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 3314 } | |
| 3315 | |
| 3316 /* | |
| 3317 * find the first line with its B_MARKED flag set | |
| 3318 */ | |
| 3319 linenr_T | |
|
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parents:
7803
diff
changeset
|
3320 ml_firstmarked(void) |
| 7 | 3321 { |
| 3322 bhdr_T *hp; | |
| 3323 DATA_BL *dp; | |
| 3324 linenr_T lnum; | |
| 3325 int i; | |
| 3326 | |
| 3327 if (curbuf->b_ml.ml_mfp == NULL) | |
| 3328 return (linenr_T) 0; | |
| 3329 | |
| 3330 /* | |
| 3331 * The search starts with lowest_marked line. This is the last line where | |
| 3332 * a mark was found, adjusted by inserting/deleting lines. | |
| 3333 */ | |
| 3334 for (lnum = lowest_marked; lnum <= curbuf->b_ml.ml_line_count; ) | |
| 3335 { | |
| 3336 /* | |
| 3337 * Find the data block containing the line. | |
| 3338 * This also fills the stack with the blocks from the root to the data | |
| 3339 * block This also releases any locked block. | |
| 3340 */ | |
| 3341 if ((hp = ml_find_line(curbuf, lnum, ML_FIND)) == NULL) | |
| 3342 return (linenr_T)0; /* give error message? */ | |
| 3343 | |
| 3344 dp = (DATA_BL *)(hp->bh_data); | |
| 3345 | |
| 3346 for (i = lnum - curbuf->b_ml.ml_locked_low; | |
| 3347 lnum <= curbuf->b_ml.ml_locked_high; ++i, ++lnum) | |
| 3348 if ((dp->db_index[i]) & DB_MARKED) | |
| 3349 { | |
| 3350 (dp->db_index[i]) &= DB_INDEX_MASK; | |
| 3351 curbuf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 3352 lowest_marked = lnum + 1; | |
| 3353 return lnum; | |
| 3354 } | |
| 3355 } | |
| 3356 | |
| 3357 return (linenr_T) 0; | |
| 3358 } | |
| 3359 | |
| 3360 /* | |
| 3361 * clear all DB_MARKED flags | |
| 3362 */ | |
| 3363 void | |
|
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parents:
7803
diff
changeset
|
3364 ml_clearmarked(void) |
| 7 | 3365 { |
| 3366 bhdr_T *hp; | |
| 3367 DATA_BL *dp; | |
| 3368 linenr_T lnum; | |
| 3369 int i; | |
| 3370 | |
| 3371 if (curbuf->b_ml.ml_mfp == NULL) /* nothing to do */ | |
| 3372 return; | |
| 3373 | |
| 3374 /* | |
| 3375 * The search starts with line lowest_marked. | |
| 3376 */ | |
| 3377 for (lnum = lowest_marked; lnum <= curbuf->b_ml.ml_line_count; ) | |
| 3378 { | |
| 3379 /* | |
| 3380 * Find the data block containing the line. | |
| 3381 * This also fills the stack with the blocks from the root to the data | |
| 3382 * block and releases any locked block. | |
| 3383 */ | |
| 3384 if ((hp = ml_find_line(curbuf, lnum, ML_FIND)) == NULL) | |
| 3385 return; /* give error message? */ | |
| 3386 | |
| 3387 dp = (DATA_BL *)(hp->bh_data); | |
| 3388 | |
| 3389 for (i = lnum - curbuf->b_ml.ml_locked_low; | |
| 3390 lnum <= curbuf->b_ml.ml_locked_high; ++i, ++lnum) | |
| 3391 if ((dp->db_index[i]) & DB_MARKED) | |
| 3392 { | |
| 3393 (dp->db_index[i]) &= DB_INDEX_MASK; | |
| 3394 curbuf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 3395 } | |
| 3396 } | |
| 3397 | |
| 3398 lowest_marked = 0; | |
| 3399 return; | |
| 3400 } | |
| 3401 | |
| 3402 /* | |
| 3403 * flush ml_line if necessary | |
| 3404 */ | |
| 3405 static void | |
|
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diff
changeset
|
3406 ml_flush_line(buf_T *buf) |
| 7 | 3407 { |
| 3408 bhdr_T *hp; | |
| 3409 DATA_BL *dp; | |
| 3410 linenr_T lnum; | |
| 3411 char_u *new_line; | |
| 3412 char_u *old_line; | |
| 3413 colnr_T new_len; | |
| 3414 int old_len; | |
| 3415 int extra; | |
| 3416 int idx; | |
| 3417 int start; | |
| 3418 int count; | |
| 3419 int i; | |
|
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|
3420 static int entered = FALSE; |
| 7 | 3421 |
| 3422 if (buf->b_ml.ml_line_lnum == 0 || buf->b_ml.ml_mfp == NULL) | |
| 3423 return; /* nothing to do */ | |
| 3424 | |
| 3425 if (buf->b_ml.ml_flags & ML_LINE_DIRTY) | |
| 3426 { | |
|
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diff
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|
3427 /* This code doesn't work recursively, but Netbeans may call back here |
|
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diff
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|
3428 * when obtaining the cursor position. */ |
|
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diff
changeset
|
3429 if (entered) |
|
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diff
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|
3430 return; |
|
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|
3431 entered = TRUE; |
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|
3432 |
| 7 | 3433 lnum = buf->b_ml.ml_line_lnum; |
| 3434 new_line = buf->b_ml.ml_line_ptr; | |
| 3435 | |
| 3436 hp = ml_find_line(buf, lnum, ML_FIND); | |
| 3437 if (hp == NULL) | |
|
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parents:
10042
diff
changeset
|
3438 IEMSGN(_("E320: Cannot find line %ld"), lnum); |
| 7 | 3439 else |
| 3440 { | |
| 3441 dp = (DATA_BL *)(hp->bh_data); | |
| 3442 idx = lnum - buf->b_ml.ml_locked_low; | |
| 3443 start = ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 3444 old_line = (char_u *)dp + start; | |
| 3445 if (idx == 0) /* line is last in block */ | |
| 3446 old_len = dp->db_txt_end - start; | |
| 3447 else /* text of previous line follows */ | |
| 3448 old_len = (dp->db_index[idx - 1] & DB_INDEX_MASK) - start; | |
| 3449 new_len = (colnr_T)STRLEN(new_line) + 1; | |
| 3450 extra = new_len - old_len; /* negative if lines gets smaller */ | |
| 3451 | |
| 3452 /* | |
| 3453 * if new line fits in data block, replace directly | |
| 3454 */ | |
| 3455 if ((int)dp->db_free >= extra) | |
| 3456 { | |
| 3457 /* if the length changes and there are following lines */ | |
| 3458 count = buf->b_ml.ml_locked_high - buf->b_ml.ml_locked_low + 1; | |
| 3459 if (extra != 0 && idx < count - 1) | |
| 3460 { | |
| 3461 /* move text of following lines */ | |
| 3462 mch_memmove((char *)dp + dp->db_txt_start - extra, | |
| 3463 (char *)dp + dp->db_txt_start, | |
| 3464 (size_t)(start - dp->db_txt_start)); | |
| 3465 | |
| 3466 /* adjust pointers of this and following lines */ | |
| 3467 for (i = idx + 1; i < count; ++i) | |
| 3468 dp->db_index[i] -= extra; | |
| 3469 } | |
| 3470 dp->db_index[idx] -= extra; | |
| 3471 | |
| 3472 /* adjust free space */ | |
| 3473 dp->db_free -= extra; | |
| 3474 dp->db_txt_start -= extra; | |
| 3475 | |
| 3476 /* copy new line into the data block */ | |
| 3477 mch_memmove(old_line - extra, new_line, (size_t)new_len); | |
| 3478 buf->b_ml.ml_flags |= (ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 3479 #ifdef FEAT_BYTEOFF | |
| 3480 /* The else case is already covered by the insert and delete */ | |
| 3481 ml_updatechunk(buf, lnum, (long)extra, ML_CHNK_UPDLINE); | |
| 3482 #endif | |
| 3483 } | |
| 3484 else | |
| 3485 { | |
| 3486 /* | |
| 3487 * Cannot do it in one data block: Delete and append. | |
| 3488 * Append first, because ml_delete_int() cannot delete the | |
| 3489 * last line in a buffer, which causes trouble for a buffer | |
| 3490 * that has only one line. | |
| 3491 * Don't forget to copy the mark! | |
| 3492 */ | |
| 3493 /* How about handling errors??? */ | |
| 3494 (void)ml_append_int(buf, lnum, new_line, new_len, FALSE, | |
| 3495 (dp->db_index[idx] & DB_MARKED)); | |
| 3496 (void)ml_delete_int(buf, lnum, FALSE); | |
| 3497 } | |
| 3498 } | |
| 3499 vim_free(new_line); | |
|
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3500 |
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|
3501 entered = FALSE; |
| 7 | 3502 } |
| 3503 | |
| 3504 buf->b_ml.ml_line_lnum = 0; | |
| 3505 } | |
| 3506 | |
| 3507 /* | |
| 3508 * create a new, empty, data block | |
| 3509 */ | |
| 3510 static bhdr_T * | |
|
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diff
changeset
|
3511 ml_new_data(memfile_T *mfp, int negative, int page_count) |
| 7 | 3512 { |
| 3513 bhdr_T *hp; | |
| 3514 DATA_BL *dp; | |
| 3515 | |
| 3516 if ((hp = mf_new(mfp, negative, page_count)) == NULL) | |
| 3517 return NULL; | |
| 3518 | |
| 3519 dp = (DATA_BL *)(hp->bh_data); | |
| 3520 dp->db_id = DATA_ID; | |
| 3521 dp->db_txt_start = dp->db_txt_end = page_count * mfp->mf_page_size; | |
| 3522 dp->db_free = dp->db_txt_start - HEADER_SIZE; | |
| 3523 dp->db_line_count = 0; | |
| 3524 | |
| 3525 return hp; | |
| 3526 } | |
| 3527 | |
| 3528 /* | |
| 3529 * create a new, empty, pointer block | |
| 3530 */ | |
| 3531 static bhdr_T * | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3532 ml_new_ptr(memfile_T *mfp) |
| 7 | 3533 { |
| 3534 bhdr_T *hp; | |
| 3535 PTR_BL *pp; | |
| 3536 | |
| 3537 if ((hp = mf_new(mfp, FALSE, 1)) == NULL) | |
| 3538 return NULL; | |
| 3539 | |
| 3540 pp = (PTR_BL *)(hp->bh_data); | |
| 3541 pp->pb_id = PTR_ID; | |
| 3542 pp->pb_count = 0; | |
|
2240
6b4879aea261
Add test for gettabvar() and settabvar().
Bram Moolenaar <bram@vim.org>
parents:
2221
diff
changeset
|
3543 pp->pb_count_max = (short_u)((mfp->mf_page_size - sizeof(PTR_BL)) |
|
6b4879aea261
Add test for gettabvar() and settabvar().
Bram Moolenaar <bram@vim.org>
parents:
2221
diff
changeset
|
3544 / sizeof(PTR_EN) + 1); |
| 7 | 3545 |
| 3546 return hp; | |
| 3547 } | |
| 3548 | |
| 3549 /* | |
| 3550 * lookup line 'lnum' in a memline | |
| 3551 * | |
| 3552 * action: if ML_DELETE or ML_INSERT the line count is updated while searching | |
| 3553 * if ML_FLUSH only flush a locked block | |
| 3554 * if ML_FIND just find the line | |
| 3555 * | |
| 3556 * If the block was found it is locked and put in ml_locked. | |
| 3557 * The stack is updated to lead to the locked block. The ip_high field in | |
| 3558 * the stack is updated to reflect the last line in the block AFTER the | |
| 3559 * insert or delete, also if the pointer block has not been updated yet. But | |
| 1167 | 3560 * if ml_locked != NULL ml_locked_lineadd must be added to ip_high. |
| 7 | 3561 * |
| 3562 * return: NULL for failure, pointer to block header otherwise | |
| 3563 */ | |
| 3564 static bhdr_T * | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3565 ml_find_line(buf_T *buf, linenr_T lnum, int action) |
| 7 | 3566 { |
| 3567 DATA_BL *dp; | |
| 3568 PTR_BL *pp; | |
| 3569 infoptr_T *ip; | |
| 3570 bhdr_T *hp; | |
| 3571 memfile_T *mfp; | |
| 3572 linenr_T t; | |
| 3573 blocknr_T bnum, bnum2; | |
| 3574 int dirty; | |
| 3575 linenr_T low, high; | |
| 3576 int top; | |
| 3577 int page_count; | |
| 3578 int idx; | |
| 3579 | |
| 3580 mfp = buf->b_ml.ml_mfp; | |
| 3581 | |
| 3582 /* | |
| 3583 * If there is a locked block check if the wanted line is in it. | |
| 3584 * If not, flush and release the locked block. | |
| 3585 * Don't do this for ML_INSERT_SAME, because the stack need to be updated. | |
| 3586 * Don't do this for ML_FLUSH, because we want to flush the locked block. | |
| 1066 | 3587 * Don't do this when 'swapfile' is reset, we want to load all the blocks. |
| 7 | 3588 */ |
| 3589 if (buf->b_ml.ml_locked) | |
| 3590 { | |
| 1066 | 3591 if (ML_SIMPLE(action) |
| 3592 && buf->b_ml.ml_locked_low <= lnum | |
| 3593 && buf->b_ml.ml_locked_high >= lnum | |
| 3594 && !mf_dont_release) | |
| 7 | 3595 { |
| 1066 | 3596 /* remember to update pointer blocks and stack later */ |
| 7 | 3597 if (action == ML_INSERT) |
| 3598 { | |
| 3599 ++(buf->b_ml.ml_locked_lineadd); | |
| 3600 ++(buf->b_ml.ml_locked_high); | |
| 3601 } | |
| 3602 else if (action == ML_DELETE) | |
| 3603 { | |
| 3604 --(buf->b_ml.ml_locked_lineadd); | |
| 3605 --(buf->b_ml.ml_locked_high); | |
| 3606 } | |
| 3607 return (buf->b_ml.ml_locked); | |
| 3608 } | |
| 3609 | |
| 3610 mf_put(mfp, buf->b_ml.ml_locked, buf->b_ml.ml_flags & ML_LOCKED_DIRTY, | |
| 3611 buf->b_ml.ml_flags & ML_LOCKED_POS); | |
| 3612 buf->b_ml.ml_locked = NULL; | |
| 3613 | |
| 1167 | 3614 /* |
| 3615 * If lines have been added or deleted in the locked block, need to | |
| 3616 * update the line count in pointer blocks. | |
| 3617 */ | |
| 3618 if (buf->b_ml.ml_locked_lineadd != 0) | |
| 7 | 3619 ml_lineadd(buf, buf->b_ml.ml_locked_lineadd); |
| 3620 } | |
| 3621 | |
| 3622 if (action == ML_FLUSH) /* nothing else to do */ | |
| 3623 return NULL; | |
| 3624 | |
| 3625 bnum = 1; /* start at the root of the tree */ | |
| 3626 page_count = 1; | |
| 3627 low = 1; | |
| 3628 high = buf->b_ml.ml_line_count; | |
| 3629 | |
| 3630 if (action == ML_FIND) /* first try stack entries */ | |
| 3631 { | |
| 3632 for (top = buf->b_ml.ml_stack_top - 1; top >= 0; --top) | |
| 3633 { | |
| 3634 ip = &(buf->b_ml.ml_stack[top]); | |
| 3635 if (ip->ip_low <= lnum && ip->ip_high >= lnum) | |
| 3636 { | |
| 3637 bnum = ip->ip_bnum; | |
| 3638 low = ip->ip_low; | |
| 3639 high = ip->ip_high; | |
| 3640 buf->b_ml.ml_stack_top = top; /* truncate stack at prev entry */ | |
| 3641 break; | |
| 3642 } | |
| 3643 } | |
| 3644 if (top < 0) | |
| 3645 buf->b_ml.ml_stack_top = 0; /* not found, start at the root */ | |
| 3646 } | |
| 3647 else /* ML_DELETE or ML_INSERT */ | |
| 3648 buf->b_ml.ml_stack_top = 0; /* start at the root */ | |
| 3649 | |
| 3650 /* | |
| 3651 * search downwards in the tree until a data block is found | |
| 3652 */ | |
| 3653 for (;;) | |
| 3654 { | |
| 3655 if ((hp = mf_get(mfp, bnum, page_count)) == NULL) | |
| 3656 goto error_noblock; | |
| 3657 | |
| 3658 /* | |
| 3659 * update high for insert/delete | |
| 3660 */ | |
| 3661 if (action == ML_INSERT) | |
| 3662 ++high; | |
| 3663 else if (action == ML_DELETE) | |
| 3664 --high; | |
| 3665 | |
| 3666 dp = (DATA_BL *)(hp->bh_data); | |
| 3667 if (dp->db_id == DATA_ID) /* data block */ | |
| 3668 { | |
| 3669 buf->b_ml.ml_locked = hp; | |
| 3670 buf->b_ml.ml_locked_low = low; | |
| 3671 buf->b_ml.ml_locked_high = high; | |
| 3672 buf->b_ml.ml_locked_lineadd = 0; | |
| 3673 buf->b_ml.ml_flags &= ~(ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 3674 return hp; | |
| 3675 } | |
| 3676 | |
| 3677 pp = (PTR_BL *)(dp); /* must be pointer block */ | |
| 3678 if (pp->pb_id != PTR_ID) | |
| 3679 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3680 IEMSG(_("E317: pointer block id wrong")); |
| 7 | 3681 goto error_block; |
| 3682 } | |
| 3683 | |
| 3684 if ((top = ml_add_stack(buf)) < 0) /* add new entry to stack */ | |
| 3685 goto error_block; | |
| 3686 ip = &(buf->b_ml.ml_stack[top]); | |
| 3687 ip->ip_bnum = bnum; | |
| 3688 ip->ip_low = low; | |
| 3689 ip->ip_high = high; | |
| 3690 ip->ip_index = -1; /* index not known yet */ | |
| 3691 | |
| 3692 dirty = FALSE; | |
| 3693 for (idx = 0; idx < (int)pp->pb_count; ++idx) | |
| 3694 { | |
| 3695 t = pp->pb_pointer[idx].pe_line_count; | |
| 3696 CHECK(t == 0, _("pe_line_count is zero")); | |
| 3697 if ((low += t) > lnum) | |
| 3698 { | |
| 3699 ip->ip_index = idx; | |
| 3700 bnum = pp->pb_pointer[idx].pe_bnum; | |
| 3701 page_count = pp->pb_pointer[idx].pe_page_count; | |
| 3702 high = low - 1; | |
| 3703 low -= t; | |
| 3704 | |
| 3705 /* | |
| 3706 * a negative block number may have been changed | |
| 3707 */ | |
| 3708 if (bnum < 0) | |
| 3709 { | |
| 3710 bnum2 = mf_trans_del(mfp, bnum); | |
| 3711 if (bnum != bnum2) | |
| 3712 { | |
| 3713 bnum = bnum2; | |
| 3714 pp->pb_pointer[idx].pe_bnum = bnum; | |
| 3715 dirty = TRUE; | |
| 3716 } | |
| 3717 } | |
| 3718 | |
| 3719 break; | |
| 3720 } | |
| 3721 } | |
| 3722 if (idx >= (int)pp->pb_count) /* past the end: something wrong! */ | |
| 3723 { | |
| 3724 if (lnum > buf->b_ml.ml_line_count) | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3725 IEMSGN(_("E322: line number out of range: %ld past the end"), |
| 7 | 3726 lnum - buf->b_ml.ml_line_count); |
| 3727 | |
| 3728 else | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3729 IEMSGN(_("E323: line count wrong in block %ld"), bnum); |
| 7 | 3730 goto error_block; |
| 3731 } | |
| 3732 if (action == ML_DELETE) | |
| 3733 { | |
| 3734 pp->pb_pointer[idx].pe_line_count--; | |
| 3735 dirty = TRUE; | |
| 3736 } | |
| 3737 else if (action == ML_INSERT) | |
| 3738 { | |
| 3739 pp->pb_pointer[idx].pe_line_count++; | |
| 3740 dirty = TRUE; | |
| 3741 } | |
| 3742 mf_put(mfp, hp, dirty, FALSE); | |
| 3743 } | |
| 3744 | |
| 3745 error_block: | |
| 3746 mf_put(mfp, hp, FALSE, FALSE); | |
| 3747 error_noblock: | |
| 2267 | 3748 /* |
| 3749 * If action is ML_DELETE or ML_INSERT we have to correct the tree for | |
| 3750 * the incremented/decremented line counts, because there won't be a line | |
| 3751 * inserted/deleted after all. | |
| 3752 */ | |
| 7 | 3753 if (action == ML_DELETE) |
| 3754 ml_lineadd(buf, 1); | |
| 3755 else if (action == ML_INSERT) | |
| 3756 ml_lineadd(buf, -1); | |
| 3757 buf->b_ml.ml_stack_top = 0; | |
| 3758 return NULL; | |
| 3759 } | |
| 3760 | |
| 3761 /* | |
| 3762 * add an entry to the info pointer stack | |
| 3763 * | |
| 3764 * return -1 for failure, number of the new entry otherwise | |
| 3765 */ | |
| 3766 static int | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3767 ml_add_stack(buf_T *buf) |
| 7 | 3768 { |
| 3769 int top; | |
| 3770 infoptr_T *newstack; | |
| 3771 | |
| 3772 top = buf->b_ml.ml_stack_top; | |
| 3773 | |
| 2267 | 3774 /* may have to increase the stack size */ |
| 7 | 3775 if (top == buf->b_ml.ml_stack_size) |
| 3776 { | |
| 2267 | 3777 CHECK(top > 0, _("Stack size increases")); /* more than 5 levels??? */ |
| 7 | 3778 |
| 3779 newstack = (infoptr_T *)alloc((unsigned)sizeof(infoptr_T) * | |
| 3780 (buf->b_ml.ml_stack_size + STACK_INCR)); | |
| 3781 if (newstack == NULL) | |
| 3782 return -1; | |
| 6989 | 3783 if (top > 0) |
| 3784 mch_memmove(newstack, buf->b_ml.ml_stack, | |
| 1624 | 3785 (size_t)top * sizeof(infoptr_T)); |
| 7 | 3786 vim_free(buf->b_ml.ml_stack); |
| 3787 buf->b_ml.ml_stack = newstack; | |
| 3788 buf->b_ml.ml_stack_size += STACK_INCR; | |
| 3789 } | |
| 3790 | |
| 3791 buf->b_ml.ml_stack_top++; | |
| 3792 return top; | |
| 3793 } | |
| 3794 | |
| 3795 /* | |
| 3796 * Update the pointer blocks on the stack for inserted/deleted lines. | |
| 3797 * The stack itself is also updated. | |
| 3798 * | |
| 3799 * When a insert/delete line action fails, the line is not inserted/deleted, | |
| 3800 * but the pointer blocks have already been updated. That is fixed here by | |
| 3801 * walking through the stack. | |
| 3802 * | |
| 3803 * Count is the number of lines added, negative if lines have been deleted. | |
| 3804 */ | |
| 3805 static void | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3806 ml_lineadd(buf_T *buf, int count) |
| 7 | 3807 { |
| 3808 int idx; | |
| 3809 infoptr_T *ip; | |
| 3810 PTR_BL *pp; | |
| 3811 memfile_T *mfp = buf->b_ml.ml_mfp; | |
| 3812 bhdr_T *hp; | |
| 3813 | |
| 3814 for (idx = buf->b_ml.ml_stack_top - 1; idx >= 0; --idx) | |
| 3815 { | |
| 3816 ip = &(buf->b_ml.ml_stack[idx]); | |
| 3817 if ((hp = mf_get(mfp, ip->ip_bnum, 1)) == NULL) | |
| 3818 break; | |
| 3819 pp = (PTR_BL *)(hp->bh_data); /* must be pointer block */ | |
| 3820 if (pp->pb_id != PTR_ID) | |
| 3821 { | |
| 3822 mf_put(mfp, hp, FALSE, FALSE); | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3823 IEMSG(_("E317: pointer block id wrong 2")); |
| 7 | 3824 break; |
| 3825 } | |
| 3826 pp->pb_pointer[ip->ip_index].pe_line_count += count; | |
| 3827 ip->ip_high += count; | |
| 3828 mf_put(mfp, hp, TRUE, FALSE); | |
| 3829 } | |
| 3830 } | |
| 3831 | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
3832 #if defined(HAVE_READLINK) || defined(PROTO) |
| 594 | 3833 /* |
| 3834 * Resolve a symlink in the last component of a file name. | |
| 3835 * Note that f_resolve() does it for every part of the path, we don't do that | |
| 3836 * here. | |
| 3837 * If it worked returns OK and the resolved link in "buf[MAXPATHL]". | |
| 3838 * Otherwise returns FAIL. | |
| 3839 */ | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
3840 int |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3841 resolve_symlink(char_u *fname, char_u *buf) |
| 594 | 3842 { |
| 3843 char_u tmp[MAXPATHL]; | |
| 3844 int ret; | |
| 3845 int depth = 0; | |
| 3846 | |
| 3847 if (fname == NULL) | |
| 3848 return FAIL; | |
| 3849 | |
| 3850 /* Put the result so far in tmp[], starting with the original name. */ | |
| 3851 vim_strncpy(tmp, fname, MAXPATHL - 1); | |
| 3852 | |
| 3853 for (;;) | |
| 3854 { | |
| 3855 /* Limit symlink depth to 100, catch recursive loops. */ | |
| 3856 if (++depth == 100) | |
| 3857 { | |
| 3858 EMSG2(_("E773: Symlink loop for \"%s\""), fname); | |
| 3859 return FAIL; | |
| 3860 } | |
| 3861 | |
| 3862 ret = readlink((char *)tmp, (char *)buf, MAXPATHL - 1); | |
| 3863 if (ret <= 0) | |
| 3864 { | |
| 619 | 3865 if (errno == EINVAL || errno == ENOENT) |
| 594 | 3866 { |
| 619 | 3867 /* Found non-symlink or not existing file, stop here. |
| 1855 | 3868 * When at the first level use the unmodified name, skip the |
| 594 | 3869 * call to vim_FullName(). */ |
| 3870 if (depth == 1) | |
| 3871 return FAIL; | |
| 3872 | |
| 3873 /* Use the resolved name in tmp[]. */ | |
| 3874 break; | |
| 3875 } | |
| 3876 | |
| 3877 /* There must be some error reading links, use original name. */ | |
| 3878 return FAIL; | |
| 3879 } | |
| 3880 buf[ret] = NUL; | |
| 3881 | |
| 3882 /* | |
| 3883 * Check whether the symlink is relative or absolute. | |
| 3884 * If it's relative, build a new path based on the directory | |
| 3885 * portion of the filename (if any) and the path the symlink | |
| 3886 * points to. | |
| 3887 */ | |
| 3888 if (mch_isFullName(buf)) | |
| 3889 STRCPY(tmp, buf); | |
| 3890 else | |
| 3891 { | |
| 3892 char_u *tail; | |
| 3893 | |
| 3894 tail = gettail(tmp); | |
| 3895 if (STRLEN(tail) + STRLEN(buf) >= MAXPATHL) | |
| 3896 return FAIL; | |
| 3897 STRCPY(tail, buf); | |
| 3898 } | |
| 3899 } | |
| 3900 | |
| 3901 /* | |
| 3902 * Try to resolve the full name of the file so that the swapfile name will | |
| 3903 * be consistent even when opening a relative symlink from different | |
| 3904 * working directories. | |
| 3905 */ | |
| 3906 return vim_FullName(tmp, buf, MAXPATHL, TRUE); | |
| 3907 } | |
| 3908 #endif | |
| 3909 | |
| 7 | 3910 /* |
| 460 | 3911 * Make swap file name out of the file name and a directory name. |
| 3912 * Returns pointer to allocated memory or NULL. | |
| 7 | 3913 */ |
| 460 | 3914 char_u * |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3915 makeswapname( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3916 char_u *fname, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3917 char_u *ffname UNUSED, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3918 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3919 char_u *dir_name) |
| 7 | 3920 { |
| 3921 char_u *r, *s; | |
|
2145
de0e7ca61893
updated for version 7.2.427
Bram Moolenaar <bram@zimbu.org>
parents:
2108
diff
changeset
|
3922 char_u *fname_res = fname; |
| 594 | 3923 #ifdef HAVE_READLINK |
| 3924 char_u fname_buf[MAXPATHL]; | |
| 3925 #endif | |
| 7 | 3926 |
| 3927 #if defined(UNIX) || defined(WIN3264) /* Need _very_ long file names */ | |
|
10996
2f041b367cd9
patch 8.0.0387: compiler warnings
Christian Brabandt <cb@256bit.org>
parents:
10952
diff
changeset
|
3928 int len = (int)STRLEN(dir_name); |
|
10896
d513b653f5d0
patch 8.0.0337: invalid memory access in :recover command
Christian Brabandt <cb@256bit.org>
parents:
10889
diff
changeset
|
3929 |
|
d513b653f5d0
patch 8.0.0337: invalid memory access in :recover command
Christian Brabandt <cb@256bit.org>
parents:
10889
diff
changeset
|
3930 s = dir_name + len; |
|
d513b653f5d0
patch 8.0.0337: invalid memory access in :recover command
Christian Brabandt <cb@256bit.org>
parents:
10889
diff
changeset
|
3931 if (after_pathsep(dir_name, s) && len > 1 && s[-1] == s[-2]) |
| 7 | 3932 { /* Ends with '//', Use Full path */ |
| 3933 r = NULL; | |
| 460 | 3934 if ((s = make_percent_swname(dir_name, fname)) != NULL) |
| 7 | 3935 { |
| 3936 r = modname(s, (char_u *)".swp", FALSE); | |
| 3937 vim_free(s); | |
| 3938 } | |
| 3939 return r; | |
| 3940 } | |
| 3941 #endif | |
| 3942 | |
| 594 | 3943 #ifdef HAVE_READLINK |
| 3944 /* Expand symlink in the file name, so that we put the swap file with the | |
| 3945 * actual file instead of with the symlink. */ | |
| 3946 if (resolve_symlink(fname, fname_buf) == OK) | |
| 3947 fname_res = fname_buf; | |
| 3948 #endif | |
| 3949 | |
| 7 | 3950 r = buf_modname( |
| 3951 (buf->b_p_sn || buf->b_shortname), | |
| 594 | 3952 fname_res, |
| 7 | 3953 (char_u *) |
| 2823 | 3954 #if defined(VMS) |
| 7 | 3955 "_swp", |
| 3956 #else | |
| 3957 ".swp", | |
| 3958 #endif | |
| 3959 /* Prepend a '.' to the swap file name for the current directory. */ | |
|
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diff
changeset
|
3960 dir_name[0] == '.' && dir_name[1] == NUL); |
| 7 | 3961 if (r == NULL) /* out of memory */ |
| 3962 return NULL; | |
| 3963 | |
| 3964 s = get_file_in_dir(r, dir_name); | |
| 3965 vim_free(r); | |
| 3966 return s; | |
| 3967 } | |
| 3968 | |
| 3969 /* | |
| 3970 * Get file name to use for swap file or backup file. | |
| 3971 * Use the name of the edited file "fname" and an entry in the 'dir' or 'bdir' | |
| 3972 * option "dname". | |
| 3973 * - If "dname" is ".", return "fname" (swap file in dir of file). | |
| 3974 * - If "dname" starts with "./", insert "dname" in "fname" (swap file | |
| 3975 * relative to dir of file). | |
| 3976 * - Otherwise, prepend "dname" to the tail of "fname" (swap file in specific | |
| 3977 * dir). | |
| 3978 * | |
| 3979 * The return value is an allocated string and can be NULL. | |
| 3980 */ | |
| 3981 char_u * | |
|
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diff
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|
3982 get_file_in_dir( |
|
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|
3983 char_u *fname, |
|
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|
3984 char_u *dname) /* don't use "dirname", it is a global for Alpha */ |
| 7 | 3985 { |
| 3986 char_u *t; | |
| 3987 char_u *tail; | |
| 3988 char_u *retval; | |
| 3989 int save_char; | |
| 3990 | |
| 3991 tail = gettail(fname); | |
| 3992 | |
| 3993 if (dname[0] == '.' && dname[1] == NUL) | |
| 3994 retval = vim_strsave(fname); | |
| 3995 else if (dname[0] == '.' && vim_ispathsep(dname[1])) | |
| 3996 { | |
| 3997 if (tail == fname) /* no path before file name */ | |
| 3998 retval = concat_fnames(dname + 2, tail, TRUE); | |
| 3999 else | |
| 4000 { | |
| 4001 save_char = *tail; | |
| 4002 *tail = NUL; | |
| 4003 t = concat_fnames(fname, dname + 2, TRUE); | |
| 4004 *tail = save_char; | |
| 4005 if (t == NULL) /* out of memory */ | |
| 4006 retval = NULL; | |
| 4007 else | |
| 4008 { | |
| 4009 retval = concat_fnames(t, tail, TRUE); | |
| 4010 vim_free(t); | |
| 4011 } | |
| 4012 } | |
| 4013 } | |
| 4014 else | |
| 4015 retval = concat_fnames(dname, tail, TRUE); | |
| 4016 | |
| 5432 | 4017 #ifdef WIN3264 |
| 4018 if (retval != NULL) | |
|
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4019 for (t = gettail(retval); *t != NUL; MB_PTR_ADV(t)) |
| 5432 | 4020 if (*t == ':') |
| 4021 *t = '%'; | |
| 4022 #endif | |
| 4023 | |
| 7 | 4024 return retval; |
| 4025 } | |
| 4026 | |
|
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diff
changeset
|
4027 static void attention_message(buf_T *buf, char_u *fname); |
| 580 | 4028 |
| 4029 /* | |
| 4030 * Print the ATTENTION message: info about an existing swap file. | |
| 4031 */ | |
| 4032 static void | |
|
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changeset
|
4033 attention_message( |
|
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changeset
|
4034 buf_T *buf, /* buffer being edited */ |
|
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diff
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|
4035 char_u *fname) /* swap file name */ |
| 580 | 4036 { |
|
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9295
diff
changeset
|
4037 stat_T st; |
| 580 | 4038 time_t x, sx; |
| 1001 | 4039 char *p; |
| 580 | 4040 |
| 4041 ++no_wait_return; | |
| 4042 (void)EMSG(_("E325: ATTENTION")); | |
| 4043 MSG_PUTS(_("\nFound a swap file by the name \"")); | |
| 4044 msg_home_replace(fname); | |
| 4045 MSG_PUTS("\"\n"); | |
| 4046 sx = swapfile_info(fname); | |
| 4047 MSG_PUTS(_("While opening file \"")); | |
| 4048 msg_outtrans(buf->b_fname); | |
| 4049 MSG_PUTS("\"\n"); | |
| 4050 if (mch_stat((char *)buf->b_fname, &st) != -1) | |
| 4051 { | |
| 4052 MSG_PUTS(_(" dated: ")); | |
| 4053 x = st.st_mtime; /* Manx C can't do &st.st_mtime */ | |
| 1001 | 4054 p = ctime(&x); /* includes '\n' */ |
| 4055 if (p == NULL) | |
| 4056 MSG_PUTS("(invalid)\n"); | |
| 4057 else | |
| 4058 MSG_PUTS(p); | |
| 580 | 4059 if (sx != 0 && x > sx) |
| 4060 MSG_PUTS(_(" NEWER than swap file!\n")); | |
| 4061 } | |
| 4062 /* Some of these messages are long to allow translation to | |
| 4063 * other languages. */ | |
|
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Christian Brabandt <cb@256bit.org>
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changeset
|
4064 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 | 4065 MSG_PUTS(_("(2) An edit session for this file crashed.\n")); |
| 580 | 4066 MSG_PUTS(_(" If this is the case, use \":recover\" or \"vim -r ")); |
| 4067 msg_outtrans(buf->b_fname); | |
| 4068 MSG_PUTS(_("\"\n to recover the changes (see \":help recovery\").\n")); | |
| 4069 MSG_PUTS(_(" If you did this already, delete the swap file \"")); | |
| 4070 msg_outtrans(fname); | |
| 4071 MSG_PUTS(_("\"\n to avoid this message.\n")); | |
| 4072 cmdline_row = msg_row; | |
| 4073 --no_wait_return; | |
| 4074 } | |
| 4075 | |
| 4076 #ifdef FEAT_AUTOCMD | |
|
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diff
changeset
|
4077 static int do_swapexists(buf_T *buf, char_u *fname); |
| 580 | 4078 |
| 4079 /* | |
| 4080 * Trigger the SwapExists autocommands. | |
| 4081 * Returns a value for equivalent to do_dialog() (see below): | |
| 4082 * 0: still need to ask for a choice | |
| 4083 * 1: open read-only | |
| 4084 * 2: edit anyway | |
| 4085 * 3: recover | |
| 4086 * 4: delete it | |
| 4087 * 5: quit | |
| 4088 * 6: abort | |
| 4089 */ | |
| 4090 static int | |
|
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diff
changeset
|
4091 do_swapexists(buf_T *buf, char_u *fname) |
| 580 | 4092 { |
| 4093 set_vim_var_string(VV_SWAPNAME, fname, -1); | |
| 4094 set_vim_var_string(VV_SWAPCHOICE, NULL, -1); | |
| 4095 | |
| 4096 /* Trigger SwapExists autocommands with <afile> set to the file being | |
| 1856 | 4097 * edited. Disallow changing directory here. */ |
| 4098 ++allbuf_lock; | |
| 580 | 4099 apply_autocmds(EVENT_SWAPEXISTS, buf->b_fname, NULL, FALSE, NULL); |
| 1856 | 4100 --allbuf_lock; |
| 580 | 4101 |
| 4102 set_vim_var_string(VV_SWAPNAME, NULL, -1); | |
| 4103 | |
| 4104 switch (*get_vim_var_str(VV_SWAPCHOICE)) | |
| 4105 { | |
| 4106 case 'o': return 1; | |
| 4107 case 'e': return 2; | |
| 4108 case 'r': return 3; | |
| 4109 case 'd': return 4; | |
| 4110 case 'q': return 5; | |
| 4111 case 'a': return 6; | |
| 4112 } | |
| 4113 | |
| 4114 return 0; | |
| 4115 } | |
| 4116 #endif | |
| 4117 | |
| 7 | 4118 /* |
| 4119 * Find out what name to use for the swap file for buffer 'buf'. | |
| 4120 * | |
| 4121 * Several names are tried to find one that does not exist | |
| 460 | 4122 * Returns the name in allocated memory or NULL. |
| 3158 | 4123 * When out of memory "dirp" is set to NULL. |
| 7 | 4124 * |
| 4125 * Note: If BASENAMELEN is not correct, you will get error messages for | |
|
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4126 * not being able to open the swap or undo file |
| 1856 | 4127 * Note: May trigger SwapExists autocmd, pointers may change! |
| 7 | 4128 */ |
| 4129 static char_u * | |
|
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|
4130 findswapname( |
|
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parents:
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|
4131 buf_T *buf, |
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|
4132 char_u **dirp, /* pointer to list of directories */ |
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diff
changeset
|
4133 char_u *old_fname) /* don't give warning for this file name */ |
| 7 | 4134 { |
| 4135 char_u *fname; | |
| 4136 int n; | |
| 4137 char_u *dir_name; | |
| 4138 #ifdef AMIGA | |
| 4139 BPTR fh; | |
| 4140 #endif | |
| 4141 int r; | |
| 5432 | 4142 char_u *buf_fname = buf->b_fname; |
| 7 | 4143 |
|
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|
4144 #if !defined(UNIX) |
| 7 | 4145 # define CREATE_DUMMY_FILE |
| 4146 FILE *dummyfd = NULL; | |
| 4147 | |
| 5432 | 4148 # ifdef WIN3264 |
| 4149 if (buf_fname != NULL && !mch_isFullName(buf_fname) | |
| 4150 && vim_strchr(gettail(buf_fname), ':')) | |
| 4151 { | |
| 4152 char_u *t; | |
| 4153 | |
| 4154 buf_fname = vim_strsave(buf_fname); | |
| 4155 if (buf_fname == NULL) | |
| 4156 buf_fname = buf->b_fname; | |
| 4157 else | |
|
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|
4158 for (t = gettail(buf_fname); *t != NUL; MB_PTR_ADV(t)) |
| 5432 | 4159 if (*t == ':') |
| 4160 *t = '%'; | |
| 4161 } | |
| 4162 # endif | |
| 4163 | |
|
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4164 /* |
|
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4165 * If we start editing a new file, e.g. "test.doc", which resides on an |
|
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parents:
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|
4166 * MSDOS compatible filesystem, it is possible that the file |
|
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parents:
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|
4167 * "test.doc.swp" which we create will be exactly the same file. To avoid |
|
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4168 * this problem we temporarily create "test.doc". Don't do this when the |
|
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parents:
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4169 * check below for a 8.3 file name is used. |
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|
4170 */ |
| 5432 | 4171 if (!(buf->b_p_sn || buf->b_shortname) && buf_fname != NULL |
| 4172 && mch_getperm(buf_fname) < 0) | |
| 4173 dummyfd = mch_fopen((char *)buf_fname, "w"); | |
| 7 | 4174 #endif |
| 4175 | |
|
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4176 /* |
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4177 * Isolate a directory name from *dirp and put it in dir_name. |
|
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4178 * First allocate some memory to put the directory name in. |
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4179 */ |
| 7 | 4180 dir_name = alloc((unsigned)STRLEN(*dirp) + 1); |
| 3158 | 4181 if (dir_name == NULL) |
| 4182 *dirp = NULL; | |
| 4183 else | |
| 7 | 4184 (void)copy_option_part(dirp, dir_name, 31000, ","); |
| 4185 | |
|
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4186 /* |
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4187 * we try different names until we find one that does not exist yet |
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changeset
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4188 */ |
| 7 | 4189 if (dir_name == NULL) /* out of memory */ |
| 4190 fname = NULL; | |
| 4191 else | |
| 5432 | 4192 fname = makeswapname(buf_fname, buf->b_ffname, buf, dir_name); |
| 7 | 4193 |
| 4194 for (;;) | |
| 4195 { | |
| 4196 if (fname == NULL) /* must be out of memory */ | |
| 4197 break; | |
| 4198 if ((n = (int)STRLEN(fname)) == 0) /* safety check */ | |
| 4199 { | |
| 4200 vim_free(fname); | |
| 4201 fname = NULL; | |
| 4202 break; | |
| 4203 } | |
|
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diff
changeset
|
4204 #if defined(UNIX) |
| 7 | 4205 /* |
| 4206 * Some systems have a MS-DOS compatible filesystem that use 8.3 character | |
| 4207 * file names. If this is the first try and the swap file name does not fit in | |
| 4208 * 8.3, detect if this is the case, set shortname and try again. | |
| 4209 */ | |
| 4210 if (fname[n - 2] == 'w' && fname[n - 1] == 'p' | |
| 4211 && !(buf->b_p_sn || buf->b_shortname)) | |
| 4212 { | |
| 4213 char_u *tail; | |
| 4214 char_u *fname2; | |
|
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diff
changeset
|
4215 stat_T s1, s2; |
| 7 | 4216 int f1, f2; |
| 4217 int created1 = FALSE, created2 = FALSE; | |
| 4218 int same = FALSE; | |
| 4219 | |
| 4220 /* | |
| 4221 * Check if swapfile name does not fit in 8.3: | |
| 4222 * It either contains two dots, is longer than 8 chars, or starts | |
| 4223 * with a dot. | |
| 4224 */ | |
| 5432 | 4225 tail = gettail(buf_fname); |
| 7 | 4226 if ( vim_strchr(tail, '.') != NULL |
| 4227 || STRLEN(tail) > (size_t)8 | |
| 4228 || *gettail(fname) == '.') | |
| 4229 { | |
| 4230 fname2 = alloc(n + 2); | |
| 4231 if (fname2 != NULL) | |
| 4232 { | |
| 4233 STRCPY(fname2, fname); | |
| 4234 /* if fname == "xx.xx.swp", fname2 = "xx.xx.swx" | |
| 4235 * if fname == ".xx.swp", fname2 = ".xx.swpx" | |
| 4236 * if fname == "123456789.swp", fname2 = "12345678x.swp" | |
| 4237 */ | |
| 4238 if (vim_strchr(tail, '.') != NULL) | |
| 4239 fname2[n - 1] = 'x'; | |
| 4240 else if (*gettail(fname) == '.') | |
| 4241 { | |
| 4242 fname2[n] = 'x'; | |
| 4243 fname2[n + 1] = NUL; | |
| 4244 } | |
| 4245 else | |
| 4246 fname2[n - 5] += 1; | |
| 4247 /* | |
| 4248 * may need to create the files to be able to use mch_stat() | |
| 4249 */ | |
| 4250 f1 = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
| 4251 if (f1 < 0) | |
| 4252 { | |
| 4253 f1 = mch_open_rw((char *)fname, | |
| 4254 O_RDWR|O_CREAT|O_EXCL|O_EXTRA); | |
| 4255 created1 = TRUE; | |
| 4256 } | |
| 4257 if (f1 >= 0) | |
| 4258 { | |
| 4259 f2 = mch_open((char *)fname2, O_RDONLY | O_EXTRA, 0); | |
| 4260 if (f2 < 0) | |
| 4261 { | |
| 4262 f2 = mch_open_rw((char *)fname2, | |
| 4263 O_RDWR|O_CREAT|O_EXCL|O_EXTRA); | |
| 4264 created2 = TRUE; | |
| 4265 } | |
| 4266 if (f2 >= 0) | |
| 4267 { | |
| 4268 /* | |
| 4269 * Both files exist now. If mch_stat() returns the | |
| 4270 * same device and inode they are the same file. | |
| 4271 */ | |
| 4272 if (mch_fstat(f1, &s1) != -1 | |
| 4273 && mch_fstat(f2, &s2) != -1 | |
| 4274 && s1.st_dev == s2.st_dev | |
| 4275 && s1.st_ino == s2.st_ino) | |
| 4276 same = TRUE; | |
| 4277 close(f2); | |
| 4278 if (created2) | |
| 4279 mch_remove(fname2); | |
| 4280 } | |
| 4281 close(f1); | |
| 4282 if (created1) | |
| 4283 mch_remove(fname); | |
| 4284 } | |
| 4285 vim_free(fname2); | |
| 4286 if (same) | |
| 4287 { | |
| 4288 buf->b_shortname = TRUE; | |
| 4289 vim_free(fname); | |
| 5432 | 4290 fname = makeswapname(buf_fname, buf->b_ffname, |
| 460 | 4291 buf, dir_name); |
| 7 | 4292 continue; /* try again with b_shortname set */ |
| 4293 } | |
| 4294 } | |
| 4295 } | |
| 4296 } | |
| 4297 #endif | |
| 4298 /* | |
| 4299 * check if the swapfile already exists | |
| 4300 */ | |
| 4301 if (mch_getperm(fname) < 0) /* it does not exist */ | |
| 4302 { | |
| 4303 #ifdef HAVE_LSTAT | |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4304 stat_T sb; |
| 7 | 4305 |
| 4306 /* | |
| 4307 * Extra security check: When a swap file is a symbolic link, this | |
| 4308 * is most likely a symlink attack. | |
| 4309 */ | |
| 4310 if (mch_lstat((char *)fname, &sb) < 0) | |
| 4311 #else | |
| 4312 # ifdef AMIGA | |
| 4313 fh = Open((UBYTE *)fname, (long)MODE_NEWFILE); | |
| 4314 /* | |
| 4315 * on the Amiga mch_getperm() will return -1 when the file exists | |
| 4316 * but is being used by another program. This happens if you edit | |
| 4317 * a file twice. | |
| 4318 */ | |
| 4319 if (fh != (BPTR)NULL) /* can open file, OK */ | |
| 4320 { | |
| 4321 Close(fh); | |
| 4322 mch_remove(fname); | |
| 4323 break; | |
| 4324 } | |
| 4325 if (IoErr() != ERROR_OBJECT_IN_USE | |
| 4326 && IoErr() != ERROR_OBJECT_EXISTS) | |
| 4327 # endif | |
| 4328 #endif | |
| 4329 break; | |
| 4330 } | |
| 4331 | |
| 4332 /* | |
| 4333 * A file name equal to old_fname is OK to use. | |
| 4334 */ | |
| 4335 if (old_fname != NULL && fnamecmp(fname, old_fname) == 0) | |
| 4336 break; | |
| 4337 | |
| 4338 /* | |
| 4339 * get here when file already exists | |
| 4340 */ | |
| 4341 if (fname[n - 2] == 'w' && fname[n - 1] == 'p') /* first try */ | |
| 4342 { | |
| 4343 /* | |
| 4344 * on MS-DOS compatible filesystems (e.g. messydos) file.doc.swp | |
| 4345 * and file.doc are the same file. To guess if this problem is | |
| 4346 * present try if file.doc.swx exists. If it does, we set | |
| 4347 * buf->b_shortname and try file_doc.swp (dots replaced by | |
| 4348 * underscores for this file), and try again. If it doesn't we | |
| 4349 * assume that "file.doc.swp" already exists. | |
| 4350 */ | |
| 4351 if (!(buf->b_p_sn || buf->b_shortname)) /* not tried yet */ | |
| 4352 { | |
| 4353 fname[n - 1] = 'x'; | |
| 4354 r = mch_getperm(fname); /* try "file.swx" */ | |
| 4355 fname[n - 1] = 'p'; | |
| 4356 if (r >= 0) /* "file.swx" seems to exist */ | |
| 4357 { | |
| 4358 buf->b_shortname = TRUE; | |
| 4359 vim_free(fname); | |
| 5432 | 4360 fname = makeswapname(buf_fname, buf->b_ffname, |
| 460 | 4361 buf, dir_name); |
| 7 | 4362 continue; /* try again with '.' replaced with '_' */ |
| 4363 } | |
| 4364 } | |
| 4365 /* | |
| 4366 * If we get here the ".swp" file really exists. | |
| 4367 * Give an error message, unless recovering, no file name, we are | |
| 4368 * viewing a help file or when the path of the file is different | |
| 4369 * (happens when all .swp files are in one directory). | |
| 4370 */ | |
| 5432 | 4371 if (!recoverymode && buf_fname != NULL |
| 43 | 4372 && !buf->b_help && !(buf->b_flags & BF_DUMMY)) |
| 7 | 4373 { |
| 4374 int fd; | |
| 4375 struct block0 b0; | |
| 4376 int differ = FALSE; | |
| 4377 | |
| 4378 /* | |
| 4379 * Try to read block 0 from the swap file to get the original | |
| 4380 * file name (and inode number). | |
| 4381 */ | |
| 4382 fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
| 4383 if (fd >= 0) | |
| 4384 { | |
| 2664 | 4385 if (read_eintr(fd, &b0, sizeof(b0)) == sizeof(b0)) |
| 7 | 4386 { |
| 4387 /* | |
| 39 | 4388 * If the swapfile has the same directory as the |
| 4389 * buffer don't compare the directory names, they can | |
| 4390 * have a different mountpoint. | |
| 7 | 4391 */ |
| 39 | 4392 if (b0.b0_flags & B0_SAME_DIR) |
| 4393 { | |
| 4394 if (fnamecmp(gettail(buf->b_ffname), | |
| 4395 gettail(b0.b0_fname)) != 0 | |
| 4396 || !same_directory(fname, buf->b_ffname)) | |
| 594 | 4397 { |
| 4398 #ifdef CHECK_INODE | |
| 4399 /* Symlinks may point to the same file even | |
| 4400 * when the name differs, need to check the | |
| 4401 * inode too. */ | |
| 4402 expand_env(b0.b0_fname, NameBuff, MAXPATHL); | |
| 4403 if (fnamecmp_ino(buf->b_ffname, NameBuff, | |
| 4404 char_to_long(b0.b0_ino))) | |
| 4405 #endif | |
| 4406 differ = TRUE; | |
| 4407 } | |
| 39 | 4408 } |
| 4409 else | |
| 4410 { | |
| 4411 /* | |
| 4412 * The name in the swap file may be | |
| 4413 * "~user/path/file". Expand it first. | |
| 4414 */ | |
| 4415 expand_env(b0.b0_fname, NameBuff, MAXPATHL); | |
| 7 | 4416 #ifdef CHECK_INODE |
| 39 | 4417 if (fnamecmp_ino(buf->b_ffname, NameBuff, |
| 594 | 4418 char_to_long(b0.b0_ino))) |
| 39 | 4419 differ = TRUE; |
| 7 | 4420 #else |
| 39 | 4421 if (fnamecmp(NameBuff, buf->b_ffname) != 0) |
| 4422 differ = TRUE; | |
| 7 | 4423 #endif |
| 39 | 4424 } |
| 7 | 4425 } |
| 4426 close(fd); | |
| 4427 } | |
| 4428 | |
| 4429 /* give the ATTENTION message when there is an old swap file | |
| 4430 * for the current file, and the buffer was not recovered. */ | |
| 4431 if (differ == FALSE && !(curbuf->b_flags & BF_RECOVERED) | |
| 4432 && vim_strchr(p_shm, SHM_ATTENTION) == NULL) | |
| 4433 { | |
| 580 | 4434 #if defined(HAS_SWAP_EXISTS_ACTION) |
| 4435 int choice = 0; | |
| 4436 #endif | |
| 7 | 4437 #ifdef CREATE_DUMMY_FILE |
| 4438 int did_use_dummy = FALSE; | |
| 4439 | |
| 4440 /* Avoid getting a warning for the file being created | |
| 4441 * outside of Vim, it was created at the start of this | |
| 4442 * function. Delete the file now, because Vim might exit | |
| 4443 * here if the window is closed. */ | |
| 4444 if (dummyfd != NULL) | |
| 4445 { | |
| 4446 fclose(dummyfd); | |
| 4447 dummyfd = NULL; | |
| 5432 | 4448 mch_remove(buf_fname); |
| 7 | 4449 did_use_dummy = TRUE; |
| 4450 } | |
| 4451 #endif | |
| 4452 | |
|
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commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
4453 #if (defined(UNIX) || defined(VMS)) && (defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)) |
| 7 | 4454 process_still_running = FALSE; |
| 4455 #endif | |
| 580 | 4456 #ifdef FEAT_AUTOCMD |
| 4457 /* | |
| 4458 * If there is an SwapExists autocommand and we can handle | |
| 4459 * the response, trigger it. It may return 0 to ask the | |
| 4460 * user anyway. | |
| 4461 */ | |
| 4462 if (swap_exists_action != SEA_NONE | |
| 5432 | 4463 && has_autocmd(EVENT_SWAPEXISTS, buf_fname, buf)) |
| 580 | 4464 choice = do_swapexists(buf, fname); |
| 4465 | |
| 4466 if (choice == 0) | |
| 4467 #endif | |
| 7 | 4468 { |
| 580 | 4469 #ifdef FEAT_GUI |
| 4470 /* If we are supposed to start the GUI but it wasn't | |
| 4471 * completely started yet, start it now. This makes | |
| 4472 * the messages displayed in the Vim window when | |
| 4473 * loading a session from the .gvimrc file. */ | |
| 4474 if (gui.starting && !gui.in_use) | |
| 4475 gui_start(); | |
| 4476 #endif | |
| 4477 /* Show info about the existing swap file. */ | |
| 4478 attention_message(buf, fname); | |
| 4479 | |
| 4480 /* We don't want a 'q' typed at the more-prompt | |
| 4481 * interrupt loading a file. */ | |
| 4482 got_int = FALSE; | |
| 7 | 4483 } |
| 4484 | |
| 4485 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) | |
| 580 | 4486 if (swap_exists_action != SEA_NONE && choice == 0) |
| 7 | 4487 { |
| 4488 char_u *name; | |
| 4489 | |
| 4490 name = alloc((unsigned)(STRLEN(fname) | |
| 4491 + STRLEN(_("Swap file \"")) | |
| 4492 + STRLEN(_("\" already exists!")) + 5)); | |
| 4493 if (name != NULL) | |
| 4494 { | |
| 4495 STRCPY(name, _("Swap file \"")); | |
| 4496 home_replace(NULL, fname, name + STRLEN(name), | |
| 4497 1000, TRUE); | |
| 4498 STRCAT(name, _("\" already exists!")); | |
| 4499 } | |
| 580 | 4500 choice = do_dialog(VIM_WARNING, |
| 7 | 4501 (char_u *)_("VIM - ATTENTION"), |
| 4502 name == NULL | |
| 4503 ? (char_u *)_("Swap file already exists!") | |
| 4504 : name, | |
|
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b2aada04d84e
commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
4505 # if defined(UNIX) || defined(VMS) |
| 7 | 4506 process_still_running |
| 4507 ? (char_u *)_("&Open Read-Only\n&Edit anyway\n&Recover\n&Quit\n&Abort") : | |
| 4508 # endif | |
| 2684 | 4509 (char_u *)_("&Open Read-Only\n&Edit anyway\n&Recover\n&Delete it\n&Quit\n&Abort"), 1, NULL, FALSE); |
| 580 | 4510 |
|
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commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
4511 # if defined(UNIX) || defined(VMS) |
| 580 | 4512 if (process_still_running && choice >= 4) |
| 4513 choice++; /* Skip missing "Delete it" button */ | |
| 4514 # endif | |
| 4515 vim_free(name); | |
| 4516 | |
| 4517 /* pretend screen didn't scroll, need redraw anyway */ | |
| 4518 msg_scrolled = 0; | |
| 4519 redraw_all_later(NOT_VALID); | |
| 4520 } | |
| 4521 #endif | |
| 4522 | |
| 4523 #if defined(HAS_SWAP_EXISTS_ACTION) | |
| 4524 if (choice > 0) | |
| 4525 { | |
| 4526 switch (choice) | |
| 7 | 4527 { |
| 4528 case 1: | |
| 4529 buf->b_p_ro = TRUE; | |
| 4530 break; | |
| 4531 case 2: | |
| 4532 break; | |
| 4533 case 3: | |
| 4534 swap_exists_action = SEA_RECOVER; | |
| 4535 break; | |
| 4536 case 4: | |
| 580 | 4537 mch_remove(fname); |
| 4538 break; | |
| 4539 case 5: | |
| 7 | 4540 swap_exists_action = SEA_QUIT; |
| 4541 break; | |
| 580 | 4542 case 6: |
| 7 | 4543 swap_exists_action = SEA_QUIT; |
| 4544 got_int = TRUE; | |
| 4545 break; | |
| 4546 } | |
| 4547 | |
| 4548 /* If the file was deleted this fname can be used. */ | |
| 4549 if (mch_getperm(fname) < 0) | |
| 4550 break; | |
| 4551 } | |
| 4552 else | |
| 4553 #endif | |
| 4554 { | |
| 4555 MSG_PUTS("\n"); | |
| 625 | 4556 if (msg_silent == 0) |
| 4557 /* call wait_return() later */ | |
| 4558 need_wait_return = TRUE; | |
| 7 | 4559 } |
| 4560 | |
| 4561 #ifdef CREATE_DUMMY_FILE | |
| 4562 /* Going to try another name, need the dummy file again. */ | |
| 4563 if (did_use_dummy) | |
| 5432 | 4564 dummyfd = mch_fopen((char *)buf_fname, "w"); |
| 7 | 4565 #endif |
| 4566 } | |
| 4567 } | |
| 4568 } | |
| 4569 | |
| 4570 /* | |
| 4571 * Change the ".swp" extension to find another file that can be used. | |
| 4572 * First decrement the last char: ".swo", ".swn", etc. | |
| 4573 * If that still isn't enough decrement the last but one char: ".svz" | |
| 9 | 4574 * Can happen when editing many "No Name" buffers. |
| 7 | 4575 */ |
| 4576 if (fname[n - 1] == 'a') /* ".s?a" */ | |
| 4577 { | |
| 4578 if (fname[n - 2] == 'a') /* ".saa": tried enough, give up */ | |
| 4579 { | |
| 4580 EMSG(_("E326: Too many swap files found")); | |
| 4581 vim_free(fname); | |
| 4582 fname = NULL; | |
| 4583 break; | |
| 4584 } | |
| 4585 --fname[n - 2]; /* ".svz", ".suz", etc. */ | |
| 4586 fname[n - 1] = 'z' + 1; | |
| 4587 } | |
| 4588 --fname[n - 1]; /* ".swo", ".swn", etc. */ | |
| 4589 } | |
| 4590 | |
| 4591 vim_free(dir_name); | |
| 4592 #ifdef CREATE_DUMMY_FILE | |
| 4593 if (dummyfd != NULL) /* file has been created temporarily */ | |
| 4594 { | |
| 4595 fclose(dummyfd); | |
| 5432 | 4596 mch_remove(buf_fname); |
| 7 | 4597 } |
| 4598 #endif | |
| 5432 | 4599 #ifdef WIN3264 |
| 4600 if (buf_fname != buf->b_fname) | |
| 4601 vim_free(buf_fname); | |
| 4602 #endif | |
| 7 | 4603 return fname; |
| 4604 } | |
| 4605 | |
| 4606 static int | |
|
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41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4607 b0_magic_wrong(ZERO_BL *b0p) |
| 7 | 4608 { |
| 4609 return (b0p->b0_magic_long != (long)B0_MAGIC_LONG | |
| 4610 || b0p->b0_magic_int != (int)B0_MAGIC_INT | |
| 4611 || b0p->b0_magic_short != (short)B0_MAGIC_SHORT | |
| 4612 || b0p->b0_magic_char != B0_MAGIC_CHAR); | |
| 4613 } | |
| 4614 | |
| 4615 #ifdef CHECK_INODE | |
| 4616 /* | |
| 4617 * Compare current file name with file name from swap file. | |
| 4618 * Try to use inode numbers when possible. | |
| 4619 * Return non-zero when files are different. | |
| 4620 * | |
| 4621 * When comparing file names a few things have to be taken into consideration: | |
| 4622 * - When working over a network the full path of a file depends on the host. | |
| 4623 * We check the inode number if possible. It is not 100% reliable though, | |
| 4624 * because the device number cannot be used over a network. | |
| 4625 * - When a file does not exist yet (editing a new file) there is no inode | |
| 4626 * number. | |
| 4627 * - The file name in a swap file may not be valid on the current host. The | |
| 4628 * "~user" form is used whenever possible to avoid this. | |
| 4629 * | |
| 4630 * This is getting complicated, let's make a table: | |
| 4631 * | |
| 4632 * ino_c ino_s fname_c fname_s differ = | |
| 4633 * | |
| 4634 * both files exist -> compare inode numbers: | |
| 4635 * != 0 != 0 X X ino_c != ino_s | |
| 4636 * | |
| 4637 * inode number(s) unknown, file names available -> compare file names | |
| 4638 * == 0 X OK OK fname_c != fname_s | |
| 4639 * X == 0 OK OK fname_c != fname_s | |
| 4640 * | |
| 4641 * current file doesn't exist, file for swap file exist, file name(s) not | |
| 4642 * available -> probably different | |
| 4643 * == 0 != 0 FAIL X TRUE | |
| 4644 * == 0 != 0 X FAIL TRUE | |
| 4645 * | |
| 4646 * current file exists, inode for swap unknown, file name(s) not | |
| 4647 * available -> probably different | |
| 4648 * != 0 == 0 FAIL X TRUE | |
| 4649 * != 0 == 0 X FAIL TRUE | |
| 4650 * | |
| 4651 * current file doesn't exist, inode for swap unknown, one file name not | |
| 4652 * available -> probably different | |
| 4653 * == 0 == 0 FAIL OK TRUE | |
| 4654 * == 0 == 0 OK FAIL TRUE | |
| 4655 * | |
| 4656 * current file doesn't exist, inode for swap unknown, both file names not | |
| 4657 * available -> probably same file | |
| 4658 * == 0 == 0 FAIL FAIL FALSE | |
| 4659 * | |
| 4660 * Note that when the ino_t is 64 bits, only the last 32 will be used. This | |
| 4661 * can't be changed without making the block 0 incompatible with 32 bit | |
| 4662 * versions. | |
| 4663 */ | |
| 4664 | |
| 4665 static int | |
|
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41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4666 fnamecmp_ino( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4667 char_u *fname_c, /* current file name */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4668 char_u *fname_s, /* file name from swap file */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4669 long ino_block0) |
| 7 | 4670 { |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4671 stat_T st; |
| 7 | 4672 ino_t ino_c = 0; /* ino of current file */ |
| 4673 ino_t ino_s; /* ino of file from swap file */ | |
| 4674 char_u buf_c[MAXPATHL]; /* full path of fname_c */ | |
| 4675 char_u buf_s[MAXPATHL]; /* full path of fname_s */ | |
| 4676 int retval_c; /* flag: buf_c valid */ | |
| 4677 int retval_s; /* flag: buf_s valid */ | |
| 4678 | |
| 4679 if (mch_stat((char *)fname_c, &st) == 0) | |
| 4680 ino_c = (ino_t)st.st_ino; | |
| 4681 | |
| 4682 /* | |
| 4683 * First we try to get the inode from the file name, because the inode in | |
| 4684 * the swap file may be outdated. If that fails (e.g. this path is not | |
| 4685 * valid on this machine), use the inode from block 0. | |
| 4686 */ | |
| 4687 if (mch_stat((char *)fname_s, &st) == 0) | |
| 4688 ino_s = (ino_t)st.st_ino; | |
| 4689 else | |
| 4690 ino_s = (ino_t)ino_block0; | |
| 4691 | |
| 4692 if (ino_c && ino_s) | |
| 4693 return (ino_c != ino_s); | |
| 4694 | |
| 4695 /* | |
| 4696 * One of the inode numbers is unknown, try a forced vim_FullName() and | |
| 4697 * compare the file names. | |
| 4698 */ | |
| 4699 retval_c = vim_FullName(fname_c, buf_c, MAXPATHL, TRUE); | |
| 4700 retval_s = vim_FullName(fname_s, buf_s, MAXPATHL, TRUE); | |
| 4701 if (retval_c == OK && retval_s == OK) | |
| 4702 return (STRCMP(buf_c, buf_s) != 0); | |
| 4703 | |
| 4704 /* | |
| 4705 * Can't compare inodes or file names, guess that the files are different, | |
| 4706 * unless both appear not to exist at all. | |
| 4707 */ | |
| 4708 if (ino_s == 0 && ino_c == 0 && retval_c == FAIL && retval_s == FAIL) | |
| 4709 return FALSE; | |
| 4710 return TRUE; | |
| 4711 } | |
| 4712 #endif /* CHECK_INODE */ | |
| 4713 | |
| 4714 /* | |
| 4715 * Move a long integer into a four byte character array. | |
| 4716 * Used for machine independency in block zero. | |
| 4717 */ | |
| 4718 static void | |
|
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41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4719 long_to_char(long n, char_u *s) |
| 7 | 4720 { |
| 4721 s[0] = (char_u)(n & 0xff); | |
| 4722 n = (unsigned)n >> 8; | |
| 4723 s[1] = (char_u)(n & 0xff); | |
| 4724 n = (unsigned)n >> 8; | |
| 4725 s[2] = (char_u)(n & 0xff); | |
| 4726 n = (unsigned)n >> 8; | |
| 4727 s[3] = (char_u)(n & 0xff); | |
| 4728 } | |
| 4729 | |
| 4730 static long | |
|
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41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4731 char_to_long(char_u *s) |
| 7 | 4732 { |
| 4733 long retval; | |
| 4734 | |
| 4735 retval = s[3]; | |
| 4736 retval <<= 8; | |
| 4737 retval |= s[2]; | |
| 4738 retval <<= 8; | |
| 4739 retval |= s[1]; | |
| 4740 retval <<= 8; | |
| 4741 retval |= s[0]; | |
| 4742 | |
| 4743 return retval; | |
| 4744 } | |
| 4745 | |
| 39 | 4746 /* |
| 4747 * Set the flags in the first block of the swap file: | |
| 4748 * - file is modified or not: buf->b_changed | |
| 4749 * - 'fileformat' | |
| 4750 * - 'fileencoding' | |
| 4751 */ | |
| 7 | 4752 void |
|
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41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4753 ml_setflags(buf_T *buf) |
| 7 | 4754 { |
| 4755 bhdr_T *hp; | |
| 4756 ZERO_BL *b0p; | |
| 4757 | |
| 4758 if (!buf->b_ml.ml_mfp) | |
| 4759 return; | |
| 4760 for (hp = buf->b_ml.ml_mfp->mf_used_last; hp != NULL; hp = hp->bh_prev) | |
| 4761 { | |
| 4762 if (hp->bh_bnum == 0) | |
| 4763 { | |
| 4764 b0p = (ZERO_BL *)(hp->bh_data); | |
| 39 | 4765 b0p->b0_dirty = buf->b_changed ? B0_DIRTY : 0; |
| 4766 b0p->b0_flags = (b0p->b0_flags & ~B0_FF_MASK) | |
| 4767 | (get_fileformat(buf) + 1); | |
| 4768 #ifdef FEAT_MBYTE | |
| 4769 add_b0_fenc(b0p, buf); | |
| 4770 #endif | |
| 7 | 4771 hp->bh_flags |= BH_DIRTY; |
| 4772 mf_sync(buf->b_ml.ml_mfp, MFS_ZERO); | |
| 4773 break; | |
| 4774 } | |
| 4775 } | |
| 4776 } | |
| 4777 | |
| 2267 | 4778 #if defined(FEAT_CRYPT) || defined(PROTO) |
| 4779 /* | |
| 4780 * If "data" points to a data block encrypt the text in it and return a copy | |
| 4781 * in allocated memory. Return NULL when out of memory. | |
| 4782 * Otherwise return "data". | |
| 4783 */ | |
| 4784 char_u * | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4785 ml_encrypt_data( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4786 memfile_T *mfp, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4787 char_u *data, |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4788 off_T offset, |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4789 unsigned size) |
| 2267 | 4790 { |
| 4791 DATA_BL *dp = (DATA_BL *)data; | |
| 4792 char_u *head_end; | |
| 4793 char_u *text_start; | |
| 4794 char_u *new_data; | |
| 4795 int text_len; | |
| 6122 | 4796 cryptstate_T *state; |
| 2267 | 4797 |
| 4798 if (dp->db_id != DATA_ID) | |
| 4799 return data; | |
| 4800 | |
| 6817 | 4801 state = ml_crypt_prepare(mfp, offset, FALSE); |
| 4802 if (state == NULL) | |
| 4803 return data; | |
| 4804 | |
| 2267 | 4805 new_data = (char_u *)alloc(size); |
| 4806 if (new_data == NULL) | |
| 4807 return NULL; | |
| 4808 head_end = (char_u *)(&dp->db_index[dp->db_line_count]); | |
| 4809 text_start = (char_u *)dp + dp->db_txt_start; | |
| 4810 text_len = size - dp->db_txt_start; | |
| 4811 | |
| 4812 /* Copy the header and the text. */ | |
| 4813 mch_memmove(new_data, dp, head_end - (char_u *)dp); | |
| 4814 | |
| 4815 /* Encrypt the text. */ | |
| 6122 | 4816 crypt_encode(state, text_start, text_len, new_data + dp->db_txt_start); |
| 4817 crypt_free_state(state); | |
| 2267 | 4818 |
| 4819 /* Clear the gap. */ | |
| 4820 if (head_end < text_start) | |
| 4821 vim_memset(new_data + (head_end - data), 0, text_start - head_end); | |
| 4822 | |
| 4823 return new_data; | |
| 4824 } | |
| 4825 | |
| 4826 /* | |
| 6817 | 4827 * Decrypt the text in "data" if it points to an encrypted data block. |
| 2267 | 4828 */ |
| 4829 void | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4830 ml_decrypt_data( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4831 memfile_T *mfp, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4832 char_u *data, |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4833 off_T offset, |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4834 unsigned size) |
| 2267 | 4835 { |
| 4836 DATA_BL *dp = (DATA_BL *)data; | |
| 4837 char_u *head_end; | |
| 4838 char_u *text_start; | |
| 4839 int text_len; | |
| 6122 | 4840 cryptstate_T *state; |
| 2267 | 4841 |
| 4842 if (dp->db_id == DATA_ID) | |
| 4843 { | |
| 4844 head_end = (char_u *)(&dp->db_index[dp->db_line_count]); | |
| 4845 text_start = (char_u *)dp + dp->db_txt_start; | |
| 4846 text_len = dp->db_txt_end - dp->db_txt_start; | |
| 4847 | |
| 4848 if (head_end > text_start || dp->db_txt_start > size | |
| 4849 || dp->db_txt_end > size) | |
| 4850 return; /* data was messed up */ | |
| 4851 | |
| 6122 | 4852 state = ml_crypt_prepare(mfp, offset, TRUE); |
| 6817 | 4853 if (state != NULL) |
| 4854 { | |
| 4855 /* Decrypt the text in place. */ | |
| 4856 crypt_decode_inplace(state, text_start, text_len); | |
| 4857 crypt_free_state(state); | |
| 4858 } | |
| 2267 | 4859 } |
| 4860 } | |
| 4861 | |
| 4862 /* | |
| 4863 * Prepare for encryption/decryption, using the key, seed and offset. | |
| 6122 | 4864 * Return an allocated cryptstate_T *. |
| 2267 | 4865 */ |
| 6122 | 4866 static cryptstate_T * |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4867 ml_crypt_prepare(memfile_T *mfp, off_T offset, int reading) |
| 2267 | 4868 { |
| 4869 buf_T *buf = mfp->mf_buffer; | |
| 4870 char_u salt[50]; | |
| 6122 | 4871 int method_nr; |
| 2267 | 4872 char_u *key; |
| 4873 char_u *seed; | |
| 4874 | |
| 4875 if (reading && mfp->mf_old_key != NULL) | |
| 4876 { | |
| 4877 /* Reading back blocks with the previous key/method/seed. */ | |
| 6122 | 4878 method_nr = mfp->mf_old_cm; |
| 2267 | 4879 key = mfp->mf_old_key; |
| 4880 seed = mfp->mf_old_seed; | |
| 4881 } | |
| 4882 else | |
| 4883 { | |
| 6122 | 4884 method_nr = crypt_get_method_nr(buf); |
| 2267 | 4885 key = buf->b_p_key; |
| 4886 seed = mfp->mf_seed; | |
| 4887 } | |
| 6817 | 4888 if (*key == NUL) |
| 4889 return NULL; | |
| 2267 | 4890 |
| 6122 | 4891 if (method_nr == CRYPT_M_ZIP) |
| 2267 | 4892 { |
| 6122 | 4893 /* For PKzip: Append the offset to the key, so that we use a different |
| 4894 * key for every block. */ | |
| 2267 | 4895 vim_snprintf((char *)salt, sizeof(salt), "%s%ld", key, (long)offset); |
| 6122 | 4896 return crypt_create(method_nr, salt, NULL, 0, NULL, 0); |
| 2267 | 4897 } |
| 6122 | 4898 |
| 4899 /* Using blowfish or better: add salt and seed. We use the byte offset | |
| 4900 * of the block for the salt. */ | |
| 4901 vim_snprintf((char *)salt, sizeof(salt), "%ld", (long)offset); | |
| 4902 return crypt_create(method_nr, key, salt, (int)STRLEN(salt), | |
| 4903 seed, MF_SEED_LEN); | |
| 2267 | 4904 } |
| 4905 | |
| 4906 #endif | |
| 4907 | |
| 4908 | |
| 7 | 4909 #if defined(FEAT_BYTEOFF) || defined(PROTO) |
| 4910 | |
| 4911 #define MLCS_MAXL 800 /* max no of lines in chunk */ | |
| 4912 #define MLCS_MINL 400 /* should be half of MLCS_MAXL */ | |
| 4913 | |
| 4914 /* | |
|
2407
6bc102a4bff8
Fix memory access to 'cryptmethod' during recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2394
diff
changeset
|
4915 * Keep information for finding byte offset of a line, updtype may be one of: |
| 7 | 4916 * ML_CHNK_ADDLINE: Add len to parent chunk, possibly splitting it |
| 4917 * Careful: ML_CHNK_ADDLINE may cause ml_find_line() to be called. | |
| 4918 * ML_CHNK_DELLINE: Subtract len from parent chunk, possibly deleting it | |
| 4919 * ML_CHNK_UPDLINE: Add len to parent chunk, as a signed entity. | |
| 4920 */ | |
| 4921 static void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4922 ml_updatechunk( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4923 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4924 linenr_T line, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4925 long len, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4926 int updtype) |
| 7 | 4927 { |
| 4928 static buf_T *ml_upd_lastbuf = NULL; | |
| 4929 static linenr_T ml_upd_lastline; | |
| 4930 static linenr_T ml_upd_lastcurline; | |
| 4931 static int ml_upd_lastcurix; | |
| 4932 | |
| 4933 linenr_T curline = ml_upd_lastcurline; | |
| 4934 int curix = ml_upd_lastcurix; | |
| 4935 long size; | |
| 4936 chunksize_T *curchnk; | |
| 4937 int rest; | |
| 4938 bhdr_T *hp; | |
| 4939 DATA_BL *dp; | |
| 4940 | |
| 4941 if (buf->b_ml.ml_usedchunks == -1 || len == 0) | |
| 4942 return; | |
| 4943 if (buf->b_ml.ml_chunksize == NULL) | |
| 4944 { | |
| 4945 buf->b_ml.ml_chunksize = (chunksize_T *) | |
| 4946 alloc((unsigned)sizeof(chunksize_T) * 100); | |
| 4947 if (buf->b_ml.ml_chunksize == NULL) | |
| 4948 { | |
| 4949 buf->b_ml.ml_usedchunks = -1; | |
| 4950 return; | |
| 4951 } | |
| 4952 buf->b_ml.ml_numchunks = 100; | |
| 4953 buf->b_ml.ml_usedchunks = 1; | |
| 4954 buf->b_ml.ml_chunksize[0].mlcs_numlines = 1; | |
| 4955 buf->b_ml.ml_chunksize[0].mlcs_totalsize = 1; | |
| 4956 } | |
| 4957 | |
| 4958 if (updtype == ML_CHNK_UPDLINE && buf->b_ml.ml_line_count == 1) | |
| 4959 { | |
| 4960 /* | |
| 4961 * First line in empty buffer from ml_flush_line() -- reset | |
| 4962 */ | |
| 4963 buf->b_ml.ml_usedchunks = 1; | |
| 4964 buf->b_ml.ml_chunksize[0].mlcs_numlines = 1; | |
| 4965 buf->b_ml.ml_chunksize[0].mlcs_totalsize = | |
| 4966 (long)STRLEN(buf->b_ml.ml_line_ptr) + 1; | |
| 4967 return; | |
| 4968 } | |
| 4969 | |
| 4970 /* | |
| 4971 * Find chunk that our line belongs to, curline will be at start of the | |
| 4972 * chunk. | |
| 4973 */ | |
| 4974 if (buf != ml_upd_lastbuf || line != ml_upd_lastline + 1 | |
| 4975 || updtype != ML_CHNK_ADDLINE) | |
| 4976 { | |
| 4977 for (curline = 1, curix = 0; | |
| 4978 curix < buf->b_ml.ml_usedchunks - 1 | |
| 4979 && line >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 4980 curix++) | |
| 4981 { | |
| 4982 curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 4983 } | |
| 4984 } | |
| 4985 else if (line >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines | |
| 4986 && curix < buf->b_ml.ml_usedchunks - 1) | |
| 4987 { | |
| 4988 /* Adjust cached curix & curline */ | |
| 4989 curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 4990 curix++; | |
| 4991 } | |
| 4992 curchnk = buf->b_ml.ml_chunksize + curix; | |
| 4993 | |
| 4994 if (updtype == ML_CHNK_DELLINE) | |
| 1030 | 4995 len = -len; |
| 7 | 4996 curchnk->mlcs_totalsize += len; |
| 4997 if (updtype == ML_CHNK_ADDLINE) | |
| 4998 { | |
| 4999 curchnk->mlcs_numlines++; | |
| 5000 | |
| 5001 /* May resize here so we don't have to do it in both cases below */ | |
| 5002 if (buf->b_ml.ml_usedchunks + 1 >= buf->b_ml.ml_numchunks) | |
| 5003 { | |
| 6596 | 5004 chunksize_T *t_chunksize = buf->b_ml.ml_chunksize; |
| 5005 | |
| 7 | 5006 buf->b_ml.ml_numchunks = buf->b_ml.ml_numchunks * 3 / 2; |
| 5007 buf->b_ml.ml_chunksize = (chunksize_T *) | |
| 5008 vim_realloc(buf->b_ml.ml_chunksize, | |
| 5009 sizeof(chunksize_T) * buf->b_ml.ml_numchunks); | |
| 5010 if (buf->b_ml.ml_chunksize == NULL) | |
| 5011 { | |
| 5012 /* Hmmmm, Give up on offset for this buffer */ | |
| 6596 | 5013 vim_free(t_chunksize); |
| 7 | 5014 buf->b_ml.ml_usedchunks = -1; |
| 5015 return; | |
| 5016 } | |
| 5017 } | |
| 5018 | |
| 5019 if (buf->b_ml.ml_chunksize[curix].mlcs_numlines >= MLCS_MAXL) | |
| 5020 { | |
| 5021 int count; /* number of entries in block */ | |
| 5022 int idx; | |
| 5023 int text_end; | |
| 5024 int linecnt; | |
| 5025 | |
| 5026 mch_memmove(buf->b_ml.ml_chunksize + curix + 1, | |
| 5027 buf->b_ml.ml_chunksize + curix, | |
| 5028 (buf->b_ml.ml_usedchunks - curix) * | |
| 5029 sizeof(chunksize_T)); | |
| 1855 | 5030 /* Compute length of first half of lines in the split chunk */ |
| 7 | 5031 size = 0; |
| 5032 linecnt = 0; | |
| 5033 while (curline < buf->b_ml.ml_line_count | |
| 5034 && linecnt < MLCS_MINL) | |
| 5035 { | |
| 5036 if ((hp = ml_find_line(buf, curline, ML_FIND)) == NULL) | |
| 5037 { | |
| 5038 buf->b_ml.ml_usedchunks = -1; | |
| 5039 return; | |
| 5040 } | |
| 5041 dp = (DATA_BL *)(hp->bh_data); | |
| 5042 count = (long)(buf->b_ml.ml_locked_high) - | |
| 5043 (long)(buf->b_ml.ml_locked_low) + 1; | |
| 5044 idx = curline - buf->b_ml.ml_locked_low; | |
| 5045 curline = buf->b_ml.ml_locked_high + 1; | |
| 5046 if (idx == 0)/* first line in block, text at the end */ | |
| 5047 text_end = dp->db_txt_end; | |
| 5048 else | |
| 5049 text_end = ((dp->db_index[idx - 1]) & DB_INDEX_MASK); | |
| 5050 /* Compute index of last line to use in this MEMLINE */ | |
| 5051 rest = count - idx; | |
| 5052 if (linecnt + rest > MLCS_MINL) | |
| 5053 { | |
| 5054 idx += MLCS_MINL - linecnt - 1; | |
| 5055 linecnt = MLCS_MINL; | |
| 5056 } | |
| 5057 else | |
| 5058 { | |
| 5059 idx = count - 1; | |
| 5060 linecnt += rest; | |
| 5061 } | |
| 5062 size += text_end - ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 5063 } | |
| 5064 buf->b_ml.ml_chunksize[curix].mlcs_numlines = linecnt; | |
| 5065 buf->b_ml.ml_chunksize[curix + 1].mlcs_numlines -= linecnt; | |
| 5066 buf->b_ml.ml_chunksize[curix].mlcs_totalsize = size; | |
| 5067 buf->b_ml.ml_chunksize[curix + 1].mlcs_totalsize -= size; | |
| 5068 buf->b_ml.ml_usedchunks++; | |
| 5069 ml_upd_lastbuf = NULL; /* Force recalc of curix & curline */ | |
| 5070 return; | |
| 5071 } | |
| 5072 else if (buf->b_ml.ml_chunksize[curix].mlcs_numlines >= MLCS_MINL | |
| 5073 && curix == buf->b_ml.ml_usedchunks - 1 | |
| 5074 && buf->b_ml.ml_line_count - line <= 1) | |
| 5075 { | |
| 5076 /* | |
| 5077 * We are in the last chunk and it is cheap to crate a new one | |
| 5078 * after this. Do it now to avoid the loop above later on | |
| 5079 */ | |
| 5080 curchnk = buf->b_ml.ml_chunksize + curix + 1; | |
| 5081 buf->b_ml.ml_usedchunks++; | |
| 5082 if (line == buf->b_ml.ml_line_count) | |
| 5083 { | |
| 5084 curchnk->mlcs_numlines = 0; | |
| 5085 curchnk->mlcs_totalsize = 0; | |
| 5086 } | |
| 5087 else | |
| 5088 { | |
| 5089 /* | |
| 5090 * Line is just prior to last, move count for last | |
| 5091 * This is the common case when loading a new file | |
| 5092 */ | |
| 5093 hp = ml_find_line(buf, buf->b_ml.ml_line_count, ML_FIND); | |
| 5094 if (hp == NULL) | |
| 5095 { | |
| 5096 buf->b_ml.ml_usedchunks = -1; | |
| 5097 return; | |
| 5098 } | |
| 5099 dp = (DATA_BL *)(hp->bh_data); | |
| 5100 if (dp->db_line_count == 1) | |
| 5101 rest = dp->db_txt_end - dp->db_txt_start; | |
| 5102 else | |
| 5103 rest = | |
| 5104 ((dp->db_index[dp->db_line_count - 2]) & DB_INDEX_MASK) | |
| 5105 - dp->db_txt_start; | |
| 5106 curchnk->mlcs_totalsize = rest; | |
| 5107 curchnk->mlcs_numlines = 1; | |
| 5108 curchnk[-1].mlcs_totalsize -= rest; | |
| 5109 curchnk[-1].mlcs_numlines -= 1; | |
| 5110 } | |
| 5111 } | |
| 5112 } | |
| 5113 else if (updtype == ML_CHNK_DELLINE) | |
| 5114 { | |
| 5115 curchnk->mlcs_numlines--; | |
| 5116 ml_upd_lastbuf = NULL; /* Force recalc of curix & curline */ | |
| 5117 if (curix < (buf->b_ml.ml_usedchunks - 1) | |
| 5118 && (curchnk->mlcs_numlines + curchnk[1].mlcs_numlines) | |
| 5119 <= MLCS_MINL) | |
| 5120 { | |
| 5121 curix++; | |
| 5122 curchnk = buf->b_ml.ml_chunksize + curix; | |
| 5123 } | |
| 5124 else if (curix == 0 && curchnk->mlcs_numlines <= 0) | |
| 5125 { | |
| 5126 buf->b_ml.ml_usedchunks--; | |
| 5127 mch_memmove(buf->b_ml.ml_chunksize, buf->b_ml.ml_chunksize + 1, | |
| 5128 buf->b_ml.ml_usedchunks * sizeof(chunksize_T)); | |
| 5129 return; | |
| 5130 } | |
| 5131 else if (curix == 0 || (curchnk->mlcs_numlines > 10 | |
| 5132 && (curchnk->mlcs_numlines + curchnk[-1].mlcs_numlines) | |
| 5133 > MLCS_MINL)) | |
| 5134 { | |
| 5135 return; | |
| 5136 } | |
| 5137 | |
| 5138 /* Collapse chunks */ | |
| 5139 curchnk[-1].mlcs_numlines += curchnk->mlcs_numlines; | |
| 5140 curchnk[-1].mlcs_totalsize += curchnk->mlcs_totalsize; | |
| 5141 buf->b_ml.ml_usedchunks--; | |
| 5142 if (curix < buf->b_ml.ml_usedchunks) | |
| 5143 { | |
| 5144 mch_memmove(buf->b_ml.ml_chunksize + curix, | |
| 5145 buf->b_ml.ml_chunksize + curix + 1, | |
| 5146 (buf->b_ml.ml_usedchunks - curix) * | |
| 5147 sizeof(chunksize_T)); | |
| 5148 } | |
| 5149 return; | |
| 5150 } | |
| 5151 ml_upd_lastbuf = buf; | |
| 5152 ml_upd_lastline = line; | |
| 5153 ml_upd_lastcurline = curline; | |
| 5154 ml_upd_lastcurix = curix; | |
| 5155 } | |
| 5156 | |
| 5157 /* | |
| 5158 * Find offset for line or line with offset. | |
| 169 | 5159 * Find line with offset if "lnum" is 0; return remaining offset in offp |
| 5160 * Find offset of line if "lnum" > 0 | |
| 7 | 5161 * return -1 if information is not available |
| 5162 */ | |
| 5163 long | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
5164 ml_find_line_or_offset(buf_T *buf, linenr_T lnum, long *offp) |
| 7 | 5165 { |
| 5166 linenr_T curline; | |
| 5167 int curix; | |
| 5168 long size; | |
| 5169 bhdr_T *hp; | |
| 5170 DATA_BL *dp; | |
| 5171 int count; /* number of entries in block */ | |
| 5172 int idx; | |
| 5173 int start_idx; | |
| 5174 int text_end; | |
| 5175 long offset; | |
| 5176 int len; | |
| 5177 int ffdos = (get_fileformat(buf) == EOL_DOS); | |
| 5178 int extra = 0; | |
| 5179 | |
| 169 | 5180 /* take care of cached line first */ |
| 5181 ml_flush_line(curbuf); | |
| 5182 | |
| 7 | 5183 if (buf->b_ml.ml_usedchunks == -1 |
| 5184 || buf->b_ml.ml_chunksize == NULL | |
| 169 | 5185 || lnum < 0) |
| 7 | 5186 return -1; |
| 5187 | |
| 5188 if (offp == NULL) | |
| 5189 offset = 0; | |
| 5190 else | |
| 5191 offset = *offp; | |
| 169 | 5192 if (lnum == 0 && offset <= 0) |
| 7 | 5193 return 1; /* Not a "find offset" and offset 0 _must_ be in line 1 */ |
| 5194 /* | |
| 5195 * Find the last chunk before the one containing our line. Last chunk is | |
| 5196 * special because it will never qualify | |
| 5197 */ | |
| 5198 curline = 1; | |
| 5199 curix = size = 0; | |
| 5200 while (curix < buf->b_ml.ml_usedchunks - 1 | |
| 169 | 5201 && ((lnum != 0 |
| 5202 && lnum >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines) | |
| 7 | 5203 || (offset != 0 |
| 5204 && offset > size + buf->b_ml.ml_chunksize[curix].mlcs_totalsize | |
| 5205 + ffdos * buf->b_ml.ml_chunksize[curix].mlcs_numlines))) | |
| 5206 { | |
| 5207 curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5208 size += buf->b_ml.ml_chunksize[curix].mlcs_totalsize; | |
| 5209 if (offset && ffdos) | |
| 5210 size += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5211 curix++; | |
| 5212 } | |
| 5213 | |
| 169 | 5214 while ((lnum != 0 && curline < lnum) || (offset != 0 && size < offset)) |
| 7 | 5215 { |
| 5216 if (curline > buf->b_ml.ml_line_count | |
| 5217 || (hp = ml_find_line(buf, curline, ML_FIND)) == NULL) | |
| 5218 return -1; | |
| 5219 dp = (DATA_BL *)(hp->bh_data); | |
| 5220 count = (long)(buf->b_ml.ml_locked_high) - | |
| 5221 (long)(buf->b_ml.ml_locked_low) + 1; | |
| 5222 start_idx = idx = curline - buf->b_ml.ml_locked_low; | |
| 5223 if (idx == 0)/* first line in block, text at the end */ | |
| 5224 text_end = dp->db_txt_end; | |
| 5225 else | |
| 5226 text_end = ((dp->db_index[idx - 1]) & DB_INDEX_MASK); | |
| 5227 /* Compute index of last line to use in this MEMLINE */ | |
| 169 | 5228 if (lnum != 0) |
| 7 | 5229 { |
| 169 | 5230 if (curline + (count - idx) >= lnum) |
| 5231 idx += lnum - curline - 1; | |
| 7 | 5232 else |
| 5233 idx = count - 1; | |
| 5234 } | |
| 5235 else | |
| 5236 { | |
| 5237 extra = 0; | |
| 5238 while (offset >= size | |
| 5239 + text_end - (int)((dp->db_index[idx]) & DB_INDEX_MASK) | |
| 5240 + ffdos) | |
| 5241 { | |
| 5242 if (ffdos) | |
| 5243 size++; | |
| 5244 if (idx == count - 1) | |
| 5245 { | |
| 5246 extra = 1; | |
| 5247 break; | |
| 5248 } | |
| 5249 idx++; | |
| 5250 } | |
| 5251 } | |
| 5252 len = text_end - ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 5253 size += len; | |
| 5254 if (offset != 0 && size >= offset) | |
| 5255 { | |
| 5256 if (size + ffdos == offset) | |
| 5257 *offp = 0; | |
| 5258 else if (idx == start_idx) | |
| 5259 *offp = offset - size + len; | |
| 5260 else | |
| 5261 *offp = offset - size + len | |
| 5262 - (text_end - ((dp->db_index[idx - 1]) & DB_INDEX_MASK)); | |
| 5263 curline += idx - start_idx + extra; | |
| 5264 if (curline > buf->b_ml.ml_line_count) | |
| 5265 return -1; /* exactly one byte beyond the end */ | |
| 5266 return curline; | |
| 5267 } | |
| 5268 curline = buf->b_ml.ml_locked_high + 1; | |
| 5269 } | |
| 5270 | |
| 169 | 5271 if (lnum != 0) |
| 20 | 5272 { |
| 5273 /* Count extra CR characters. */ | |
| 5274 if (ffdos) | |
| 169 | 5275 size += lnum - 1; |
| 20 | 5276 |
| 6933 | 5277 /* Don't count the last line break if 'noeol' and ('bin' or |
| 5278 * 'nofixeol'). */ | |
| 5279 if ((!buf->b_p_fixeol || buf->b_p_bin) && !buf->b_p_eol | |
| 5280 && buf->b_ml.ml_line_count == lnum) | |
| 20 | 5281 size -= ffdos + 1; |
| 5282 } | |
| 5283 | |
| 7 | 5284 return size; |
| 5285 } | |
| 5286 | |
| 5287 /* | |
| 5288 * Goto byte in buffer with offset 'cnt'. | |
| 5289 */ | |
| 5290 void | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
5291 goto_byte(long cnt) |
| 7 | 5292 { |
| 5293 long boff = cnt; | |
| 5294 linenr_T lnum; | |
| 5295 | |
| 5296 ml_flush_line(curbuf); /* cached line may be dirty */ | |
| 5297 setpcmark(); | |
| 5298 if (boff) | |
| 5299 --boff; | |
| 5300 lnum = ml_find_line_or_offset(curbuf, (linenr_T)0, &boff); | |
| 5301 if (lnum < 1) /* past the end */ | |
| 5302 { | |
| 5303 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count; | |
| 5304 curwin->w_curswant = MAXCOL; | |
| 5305 coladvance((colnr_T)MAXCOL); | |
| 5306 } | |
| 5307 else | |
| 5308 { | |
| 5309 curwin->w_cursor.lnum = lnum; | |
| 5310 curwin->w_cursor.col = (colnr_T)boff; | |
| 572 | 5311 # ifdef FEAT_VIRTUALEDIT |
| 5312 curwin->w_cursor.coladd = 0; | |
| 5313 # endif | |
| 7 | 5314 curwin->w_set_curswant = TRUE; |
| 5315 } | |
| 5316 check_cursor(); | |
| 5317 | |
| 5318 # ifdef FEAT_MBYTE | |
| 5319 /* Make sure the cursor is on the first byte of a multi-byte char. */ | |
| 5320 if (has_mbyte) | |
| 5321 mb_adjust_cursor(); | |
| 5322 # endif | |
| 5323 } | |
| 5324 #endif |