Mercurial > vim
annotate src/memline.c @ 14475:dddba3937532 v8.1.0251
patch 8.1.0251: using full path is not supported for 'backupdir'
commit https://github.com/vim/vim/commit/b782ba475a3f8f2b0be99dda164ba4545347f60f
Author: Bram Moolenaar <Bram@vim.org>
Date: Tue Aug 7 21:39:28 2018 +0200
patch 8.1.0251: using full path is not supported for 'backupdir'
Problem: Using a full path is supported for 'directory' but not for
'backupdir'. (Mikolaj Machowski)
Solution: Support 'backupdir' as well. (Christian Brabandt, closes #179)
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Tue, 07 Aug 2018 21:45:05 +0200 |
| parents | 8631b54ae2a2 |
| children | 23d6d9e9ae3e |
| rev | line source |
|---|---|
|
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 7 | 2 * |
| 3 * VIM - Vi IMproved by Bram Moolenaar | |
| 4 * | |
| 5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
| 6 * Do ":help credits" in Vim to see a list of people who contributed. | |
| 7 * See README.txt for an overview of the Vim source code. | |
| 8 */ | |
| 9 | |
| 10 /* for debugging */ | |
|
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11 /* #define CHECK(c, s) do { if (c) EMSG(s); } while (0) */ |
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12 #define CHECK(c, s) do { /**/ } while (0) |
| 7 | 13 |
| 14 /* | |
| 15 * memline.c: Contains the functions for appending, deleting and changing the | |
| 625 | 16 * text lines. The memfile functions are used to store the information in |
| 17 * blocks of memory, backed up by a file. The structure of the information is | |
| 18 * a tree. The root of the tree is a pointer block. The leaves of the tree | |
| 19 * are data blocks. In between may be several layers of pointer blocks, | |
| 20 * forming branches. | |
| 7 | 21 * |
| 22 * Three types of blocks are used: | |
| 23 * - Block nr 0 contains information for recovery | |
| 24 * - Pointer blocks contain list of pointers to other blocks. | |
| 25 * - Data blocks contain the actual text. | |
| 26 * | |
| 27 * Block nr 0 contains the block0 structure (see below). | |
| 28 * | |
| 29 * Block nr 1 is the first pointer block. It is the root of the tree. | |
| 30 * Other pointer blocks are branches. | |
| 31 * | |
| 32 * If a line is too big to fit in a single page, the block containing that | |
| 33 * line is made big enough to hold the line. It may span several pages. | |
| 34 * Otherwise all blocks are one page. | |
| 35 * | |
| 36 * A data block that was filled when starting to edit a file and was not | |
| 37 * changed since then, can have a negative block number. This means that it | |
| 38 * has not yet been assigned a place in the file. When recovering, the lines | |
| 39 * in this data block can be read from the original file. When the block is | |
| 40 * changed (lines appended/deleted/changed) or when it is flushed it gets a | |
| 41 * positive number. Use mf_trans_del() to get the new number, before calling | |
| 42 * mf_get(). | |
| 43 */ | |
| 44 | |
| 45 #include "vim.h" | |
| 46 | |
| 47 #ifndef UNIX /* it's in os_unix.h for Unix */ | |
| 48 # include <time.h> | |
| 49 #endif | |
| 50 | |
| 1030 | 51 #if defined(SASC) || defined(__amigaos4__) |
| 7 | 52 # include <proto/dos.h> /* for Open() and Close() */ |
| 53 #endif | |
| 54 | |
| 55 typedef struct block0 ZERO_BL; /* contents of the first block */ | |
| 56 typedef struct pointer_block PTR_BL; /* contents of a pointer block */ | |
| 57 typedef struct data_block DATA_BL; /* contents of a data block */ | |
| 58 typedef struct pointer_entry PTR_EN; /* block/line-count pair */ | |
| 59 | |
| 2267 | 60 #define DATA_ID (('d' << 8) + 'a') /* data block id */ |
| 61 #define PTR_ID (('p' << 8) + 't') /* pointer block id */ | |
| 62 #define BLOCK0_ID0 'b' /* block 0 id 0 */ | |
| 63 #define BLOCK0_ID1 '0' /* block 0 id 1 */ | |
| 64 #define BLOCK0_ID1_C0 'c' /* block 0 id 1 'cm' 0 */ | |
| 65 #define BLOCK0_ID1_C1 'C' /* block 0 id 1 'cm' 1 */ | |
| 6122 | 66 #define BLOCK0_ID1_C2 'd' /* block 0 id 1 'cm' 2 */ |
| 67 | |
| 68 #if defined(FEAT_CRYPT) | |
| 69 static int id1_codes[] = { | |
| 70 BLOCK0_ID1_C0, /* CRYPT_M_ZIP */ | |
| 71 BLOCK0_ID1_C1, /* CRYPT_M_BF */ | |
| 72 BLOCK0_ID1_C2, /* CRYPT_M_BF2 */ | |
| 73 }; | |
| 74 #endif | |
| 7 | 75 |
| 76 /* | |
| 77 * pointer to a block, used in a pointer block | |
| 78 */ | |
| 79 struct pointer_entry | |
| 80 { | |
| 81 blocknr_T pe_bnum; /* block number */ | |
| 82 linenr_T pe_line_count; /* number of lines in this branch */ | |
| 83 linenr_T pe_old_lnum; /* lnum for this block (for recovery) */ | |
| 84 int pe_page_count; /* number of pages in block pe_bnum */ | |
| 85 }; | |
| 86 | |
| 87 /* | |
| 88 * A pointer block contains a list of branches in the tree. | |
| 89 */ | |
| 90 struct pointer_block | |
| 91 { | |
| 92 short_u pb_id; /* ID for pointer block: PTR_ID */ | |
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93 short_u pb_count; /* number of pointers in this block */ |
| 7 | 94 short_u pb_count_max; /* maximum value for pb_count */ |
| 95 PTR_EN pb_pointer[1]; /* list of pointers to blocks (actually longer) | |
| 96 * followed by empty space until end of page */ | |
| 97 }; | |
| 98 | |
| 99 /* | |
| 100 * A data block is a leaf in the tree. | |
| 101 * | |
| 102 * The text of the lines is at the end of the block. The text of the first line | |
| 103 * in the block is put at the end, the text of the second line in front of it, | |
| 104 * etc. Thus the order of the lines is the opposite of the line number. | |
| 105 */ | |
| 106 struct data_block | |
| 107 { | |
| 108 short_u db_id; /* ID for data block: DATA_ID */ | |
| 109 unsigned db_free; /* free space available */ | |
| 110 unsigned db_txt_start; /* byte where text starts */ | |
| 111 unsigned db_txt_end; /* byte just after data block */ | |
| 112 linenr_T db_line_count; /* number of lines in this block */ | |
| 113 unsigned db_index[1]; /* index for start of line (actually bigger) | |
| 114 * followed by empty space upto db_txt_start | |
| 115 * followed by the text in the lines until | |
| 116 * end of page */ | |
| 117 }; | |
| 118 | |
| 119 /* | |
| 120 * The low bits of db_index hold the actual index. The topmost bit is | |
| 121 * used for the global command to be able to mark a line. | |
| 122 * This method is not clean, but otherwise there would be at least one extra | |
| 123 * byte used for each line. | |
| 124 * The mark has to be in this place to keep it with the correct line when other | |
| 125 * lines are inserted or deleted. | |
| 126 */ | |
| 127 #define DB_MARKED ((unsigned)1 << ((sizeof(unsigned) * 8) - 1)) | |
| 128 #define DB_INDEX_MASK (~DB_MARKED) | |
| 129 | |
| 130 #define INDEX_SIZE (sizeof(unsigned)) /* size of one db_index entry */ | |
| 131 #define HEADER_SIZE (sizeof(DATA_BL) - INDEX_SIZE) /* size of data block header */ | |
| 132 | |
| 39 | 133 #define B0_FNAME_SIZE_ORG 900 /* what it was in older versions */ |
| 2267 | 134 #define B0_FNAME_SIZE_NOCRYPT 898 /* 2 bytes used for other things */ |
| 135 #define B0_FNAME_SIZE_CRYPT 890 /* 10 bytes used for other things */ | |
| 39 | 136 #define B0_UNAME_SIZE 40 |
| 137 #define B0_HNAME_SIZE 40 | |
| 7 | 138 /* |
| 139 * Restrict the numbers to 32 bits, otherwise most compilers will complain. | |
| 140 * This won't detect a 64 bit machine that only swaps a byte in the top 32 | |
| 141 * bits, but that is crazy anyway. | |
| 142 */ | |
| 143 #define B0_MAGIC_LONG 0x30313233L | |
| 144 #define B0_MAGIC_INT 0x20212223L | |
| 145 #define B0_MAGIC_SHORT 0x10111213L | |
| 146 #define B0_MAGIC_CHAR 0x55 | |
| 147 | |
| 148 /* | |
| 149 * Block zero holds all info about the swap file. | |
| 150 * | |
| 151 * NOTE: DEFINITION OF BLOCK 0 SHOULD NOT CHANGE! It would make all existing | |
| 152 * swap files unusable! | |
| 153 * | |
| 154 * If size of block0 changes anyway, adjust MIN_SWAP_PAGE_SIZE in vim.h!! | |
| 155 * | |
| 1228 | 156 * This block is built up of single bytes, to make it portable across |
| 7 | 157 * different machines. b0_magic_* is used to check the byte order and size of |
| 158 * variables, because the rest of the swap file is not portable. | |
| 159 */ | |
| 160 struct block0 | |
| 161 { | |
| 2267 | 162 char_u b0_id[2]; /* id for block 0: BLOCK0_ID0 and BLOCK0_ID1, |
| 6122 | 163 * BLOCK0_ID1_C0, BLOCK0_ID1_C1, etc. */ |
| 7 | 164 char_u b0_version[10]; /* Vim version string */ |
| 165 char_u b0_page_size[4];/* number of bytes per page */ | |
| 166 char_u b0_mtime[4]; /* last modification time of file */ | |
| 167 char_u b0_ino[4]; /* inode of b0_fname */ | |
| 168 char_u b0_pid[4]; /* process id of creator (or 0) */ | |
| 169 char_u b0_uname[B0_UNAME_SIZE]; /* name of user (uid if no name) */ | |
| 170 char_u b0_hname[B0_HNAME_SIZE]; /* host name (if it has a name) */ | |
| 39 | 171 char_u b0_fname[B0_FNAME_SIZE_ORG]; /* name of file being edited */ |
| 7 | 172 long b0_magic_long; /* check for byte order of long */ |
| 173 int b0_magic_int; /* check for byte order of int */ | |
| 174 short b0_magic_short; /* check for byte order of short */ | |
| 175 char_u b0_magic_char; /* check for last char */ | |
| 176 }; | |
| 39 | 177 |
| 178 /* | |
| 625 | 179 * Note: b0_dirty and b0_flags are put at the end of the file name. For very |
| 39 | 180 * long file names in older versions of Vim they are invalid. |
| 181 * The 'fileencoding' comes before b0_flags, with a NUL in front. But only | |
| 182 * when there is room, for very long file names it's omitted. | |
| 183 */ | |
| 184 #define B0_DIRTY 0x55 | |
| 2267 | 185 #define b0_dirty b0_fname[B0_FNAME_SIZE_ORG - 1] |
| 39 | 186 |
| 187 /* | |
| 188 * The b0_flags field is new in Vim 7.0. | |
| 189 */ | |
| 2267 | 190 #define b0_flags b0_fname[B0_FNAME_SIZE_ORG - 2] |
| 191 | |
| 192 /* | |
| 193 * Crypt seed goes here, 8 bytes. New in Vim 7.3. | |
| 194 * Without encryption these bytes may be used for 'fenc'. | |
| 195 */ | |
| 196 #define b0_seed b0_fname[B0_FNAME_SIZE_ORG - 2 - MF_SEED_LEN] | |
| 39 | 197 |
| 198 /* The lowest two bits contain the fileformat. Zero means it's not set | |
| 199 * (compatible with Vim 6.x), otherwise it's EOL_UNIX + 1, EOL_DOS + 1 or | |
| 200 * EOL_MAC + 1. */ | |
| 201 #define B0_FF_MASK 3 | |
| 202 | |
| 203 /* Swap file is in directory of edited file. Used to find the file from | |
| 204 * different mount points. */ | |
| 205 #define B0_SAME_DIR 4 | |
| 206 | |
| 207 /* The 'fileencoding' is at the end of b0_fname[], with a NUL in front of it. | |
| 208 * When empty there is only the NUL. */ | |
| 209 #define B0_HAS_FENC 8 | |
| 7 | 210 |
| 211 #define STACK_INCR 5 /* nr of entries added to ml_stack at a time */ | |
| 212 | |
| 213 /* | |
| 214 * The line number where the first mark may be is remembered. | |
| 215 * If it is 0 there are no marks at all. | |
| 216 * (always used for the current buffer only, no buffer change possible while | |
| 217 * executing a global command). | |
| 218 */ | |
| 219 static linenr_T lowest_marked = 0; | |
| 220 | |
| 221 /* | |
| 222 * arguments for ml_find_line() | |
| 223 */ | |
| 224 #define ML_DELETE 0x11 /* delete line */ | |
| 225 #define ML_INSERT 0x12 /* insert line */ | |
| 226 #define ML_FIND 0x13 /* just find the line */ | |
| 227 #define ML_FLUSH 0x02 /* flush locked block */ | |
| 228 #define ML_SIMPLE(x) (x & 0x10) /* DEL, INS or FIND */ | |
| 229 | |
| 2267 | 230 /* argument for ml_upd_block0() */ |
| 231 typedef enum { | |
| 232 UB_FNAME = 0 /* update timestamp and filename */ | |
| 233 , UB_SAME_DIR /* update the B0_SAME_DIR flag */ | |
| 234 , UB_CRYPT /* update crypt key */ | |
| 235 } upd_block0_T; | |
| 236 | |
| 237 #ifdef FEAT_CRYPT | |
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238 static void ml_set_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 *); |
| 2267 | 265 #ifdef FEAT_CRYPT |
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266 static cryptstate_T *ml_crypt_prepare(memfile_T *mfp, off_T offset, int reading); |
| 2267 | 267 #endif |
| 7 | 268 #ifdef FEAT_BYTEOFF |
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269 static void ml_updatechunk(buf_T *buf, long line, long len, int updtype); |
| 7 | 270 #endif |
| 271 | |
| 272 /* | |
| 625 | 273 * Open a new memline for "buf". |
| 7 | 274 * |
| 625 | 275 * Return FAIL for failure, OK otherwise. |
| 7 | 276 */ |
| 277 int | |
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278 ml_open(buf_T *buf) |
| 7 | 279 { |
| 280 memfile_T *mfp; | |
| 281 bhdr_T *hp = NULL; | |
| 282 ZERO_BL *b0p; | |
| 283 PTR_BL *pp; | |
| 284 DATA_BL *dp; | |
| 285 | |
| 625 | 286 /* |
| 287 * init fields in memline struct | |
| 288 */ | |
| 2267 | 289 buf->b_ml.ml_stack_size = 0; /* no stack yet */ |
| 625 | 290 buf->b_ml.ml_stack = NULL; /* no stack yet */ |
| 291 buf->b_ml.ml_stack_top = 0; /* nothing in the stack */ | |
| 292 buf->b_ml.ml_locked = NULL; /* no cached block */ | |
| 293 buf->b_ml.ml_line_lnum = 0; /* no cached line */ | |
| 7 | 294 #ifdef FEAT_BYTEOFF |
| 625 | 295 buf->b_ml.ml_chunksize = NULL; |
| 7 | 296 #endif |
| 297 | |
| 5737 | 298 if (cmdmod.noswapfile) |
| 299 buf->b_p_swf = FALSE; | |
| 300 | |
| 625 | 301 /* |
| 302 * When 'updatecount' is non-zero swap file may be opened later. | |
| 303 */ | |
| 304 if (p_uc && buf->b_p_swf) | |
| 305 buf->b_may_swap = TRUE; | |
| 7 | 306 else |
| 625 | 307 buf->b_may_swap = FALSE; |
| 308 | |
| 309 /* | |
| 310 * Open the memfile. No swap file is created yet. | |
| 311 */ | |
| 7 | 312 mfp = mf_open(NULL, 0); |
| 313 if (mfp == NULL) | |
| 314 goto error; | |
| 315 | |
| 625 | 316 buf->b_ml.ml_mfp = mfp; |
| 2267 | 317 #ifdef FEAT_CRYPT |
| 318 mfp->mf_buffer = buf; | |
| 319 #endif | |
| 625 | 320 buf->b_ml.ml_flags = ML_EMPTY; |
| 321 buf->b_ml.ml_line_count = 1; | |
| 13 | 322 #ifdef FEAT_LINEBREAK |
| 323 curwin->w_nrwidth_line_count = 0; | |
| 324 #endif | |
| 7 | 325 |
| 326 /* | |
| 327 * fill block0 struct and write page 0 | |
| 328 */ | |
| 329 if ((hp = mf_new(mfp, FALSE, 1)) == NULL) | |
| 330 goto error; | |
| 331 if (hp->bh_bnum != 0) | |
| 332 { | |
|
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66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
333 IEMSG(_("E298: Didn't get block nr 0?")); |
| 7 | 334 goto error; |
| 335 } | |
| 336 b0p = (ZERO_BL *)(hp->bh_data); | |
| 337 | |
| 338 b0p->b0_id[0] = BLOCK0_ID0; | |
| 339 b0p->b0_id[1] = BLOCK0_ID1; | |
| 340 b0p->b0_magic_long = (long)B0_MAGIC_LONG; | |
| 341 b0p->b0_magic_int = (int)B0_MAGIC_INT; | |
| 342 b0p->b0_magic_short = (short)B0_MAGIC_SHORT; | |
| 343 b0p->b0_magic_char = B0_MAGIC_CHAR; | |
|
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patch 8.1.0023: gcc 8.1 warns for use of strncpy()
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
344 mch_memmove(b0p->b0_version, "VIM ", 4); |
| 7 | 345 STRNCPY(b0p->b0_version + 4, Version, 6); |
| 346 long_to_char((long)mfp->mf_page_size, b0p->b0_page_size); | |
| 625 | 347 |
| 800 | 348 #ifdef FEAT_SPELL |
| 349 if (!buf->b_spell) | |
| 350 #endif | |
| 625 | 351 { |
| 352 b0p->b0_dirty = buf->b_changed ? B0_DIRTY : 0; | |
| 353 b0p->b0_flags = get_fileformat(buf) + 1; | |
| 354 set_b0_fname(b0p, buf); | |
| 355 (void)get_user_name(b0p->b0_uname, B0_UNAME_SIZE); | |
| 356 b0p->b0_uname[B0_UNAME_SIZE - 1] = NUL; | |
| 357 mch_get_host_name(b0p->b0_hname, B0_HNAME_SIZE); | |
| 358 b0p->b0_hname[B0_HNAME_SIZE - 1] = NUL; | |
| 359 long_to_char(mch_get_pid(), b0p->b0_pid); | |
| 2267 | 360 #ifdef FEAT_CRYPT |
| 6122 | 361 ml_set_b0_crypt(buf, b0p); |
| 2267 | 362 #endif |
| 625 | 363 } |
| 7 | 364 |
| 365 /* | |
| 366 * Always sync block number 0 to disk, so we can check the file name in | |
| 2267 | 367 * the swap file in findswapname(). Don't do this for a help files or |
| 368 * a spell buffer though. | |
| 7 | 369 * Only works when there's a swapfile, otherwise it's done when the file |
| 370 * is created. | |
| 371 */ | |
| 372 mf_put(mfp, hp, TRUE, FALSE); | |
| 625 | 373 if (!buf->b_help && !B_SPELL(buf)) |
| 7 | 374 (void)mf_sync(mfp, 0); |
| 375 | |
| 625 | 376 /* |
| 377 * Fill in root pointer block and write page 1. | |
| 378 */ | |
| 7 | 379 if ((hp = ml_new_ptr(mfp)) == NULL) |
| 380 goto error; | |
| 381 if (hp->bh_bnum != 1) | |
| 382 { | |
|
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
383 IEMSG(_("E298: Didn't get block nr 1?")); |
| 7 | 384 goto error; |
| 385 } | |
| 386 pp = (PTR_BL *)(hp->bh_data); | |
| 387 pp->pb_count = 1; | |
| 388 pp->pb_pointer[0].pe_bnum = 2; | |
| 389 pp->pb_pointer[0].pe_page_count = 1; | |
| 390 pp->pb_pointer[0].pe_old_lnum = 1; | |
| 391 pp->pb_pointer[0].pe_line_count = 1; /* line count after insertion */ | |
| 392 mf_put(mfp, hp, TRUE, FALSE); | |
| 393 | |
| 625 | 394 /* |
| 395 * Allocate first data block and create an empty line 1. | |
| 396 */ | |
| 7 | 397 if ((hp = ml_new_data(mfp, FALSE, 1)) == NULL) |
| 398 goto error; | |
| 399 if (hp->bh_bnum != 2) | |
| 400 { | |
|
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
401 IEMSG(_("E298: Didn't get block nr 2?")); |
| 7 | 402 goto error; |
| 403 } | |
| 404 | |
| 405 dp = (DATA_BL *)(hp->bh_data); | |
| 406 dp->db_index[0] = --dp->db_txt_start; /* at end of block */ | |
| 407 dp->db_free -= 1 + INDEX_SIZE; | |
| 408 dp->db_line_count = 1; | |
| 2003 | 409 *((char_u *)dp + dp->db_txt_start) = NUL; /* empty line */ |
| 7 | 410 |
| 411 return OK; | |
| 412 | |
| 413 error: | |
| 414 if (mfp != NULL) | |
| 415 { | |
| 416 if (hp) | |
| 417 mf_put(mfp, hp, FALSE, FALSE); | |
| 418 mf_close(mfp, TRUE); /* will also free(mfp->mf_fname) */ | |
| 419 } | |
| 625 | 420 buf->b_ml.ml_mfp = NULL; |
| 7 | 421 return FAIL; |
| 422 } | |
| 423 | |
| 2267 | 424 #if defined(FEAT_CRYPT) || defined(PROTO) |
| 425 /* | |
| 6130 | 426 * Prepare encryption for "buf" for the current key and method. |
| 427 */ | |
| 428 static void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
429 ml_set_mfp_crypt(buf_T *buf) |
| 6130 | 430 { |
| 431 if (*buf->b_p_key != NUL) | |
| 432 { | |
| 433 int method_nr = crypt_get_method_nr(buf); | |
| 434 | |
| 435 if (method_nr > CRYPT_M_ZIP) | |
| 436 { | |
| 437 /* Generate a seed and store it in the memfile. */ | |
| 438 sha2_seed(buf->b_ml.ml_mfp->mf_seed, MF_SEED_LEN, NULL, 0); | |
| 439 } | |
| 440 } | |
| 441 } | |
| 442 | |
| 443 /* | |
| 2267 | 444 * Prepare encryption for "buf" with block 0 "b0p". |
| 445 */ | |
| 446 static void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
447 ml_set_b0_crypt(buf_T *buf, ZERO_BL *b0p) |
| 2267 | 448 { |
| 449 if (*buf->b_p_key == NUL) | |
| 450 b0p->b0_id[1] = BLOCK0_ID1; | |
| 451 else | |
| 452 { | |
| 6122 | 453 int method_nr = crypt_get_method_nr(buf); |
| 454 | |
| 455 b0p->b0_id[1] = id1_codes[method_nr]; | |
| 456 if (method_nr > CRYPT_M_ZIP) | |
| 2267 | 457 { |
| 458 /* Generate a seed and store it in block 0 and in the memfile. */ | |
| 459 sha2_seed(&b0p->b0_seed, MF_SEED_LEN, NULL, 0); | |
| 460 mch_memmove(buf->b_ml.ml_mfp->mf_seed, &b0p->b0_seed, MF_SEED_LEN); | |
| 461 } | |
| 462 } | |
| 463 } | |
| 464 | |
| 465 /* | |
| 466 * Called after the crypt key or 'cryptmethod' was changed for "buf". | |
| 467 * Will apply this to the swapfile. | |
| 468 * "old_key" is the previous key. It is equal to buf->b_p_key when | |
| 469 * 'cryptmethod' is changed. | |
|
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parents:
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diff
changeset
|
470 * "old_cm" is the previous 'cryptmethod'. It is equal to the current |
|
d8e4b27cef80
Change 'cryptmethod' from a number to a string option. Make it global-local.
Bram Moolenaar <bram@vim.org>
parents:
2283
diff
changeset
|
471 * 'cryptmethod' when 'key' is changed. |
| 2267 | 472 */ |
| 473 void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
474 ml_set_crypt_key( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
475 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
476 char_u *old_key, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
477 char_u *old_cm) |
| 2267 | 478 { |
| 479 memfile_T *mfp = buf->b_ml.ml_mfp; | |
| 480 bhdr_T *hp; | |
| 481 int page_count; | |
| 482 int idx; | |
| 483 long error; | |
| 484 infoptr_T *ip; | |
| 485 PTR_BL *pp; | |
| 486 DATA_BL *dp; | |
| 487 blocknr_T bnum; | |
| 488 int top; | |
| 6817 | 489 int old_method; |
| 2267 | 490 |
|
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7901306c5a34
Fix: when setting crypt key seed was not updated when the swap file wasn't
Bram Moolenaar <bram@vim.org>
parents:
2408
diff
changeset
|
491 if (mfp == NULL) |
| 2267 | 492 return; /* no memfile yet, nothing to do */ |
| 6817 | 493 old_method = crypt_method_nr_from_name(old_cm); |
| 494 | |
| 495 /* First make sure the swapfile is in a consistent state, using the old | |
| 496 * key and method. */ | |
| 497 { | |
| 498 char_u *new_key = buf->b_p_key; | |
| 499 char_u *new_buf_cm = buf->b_p_cm; | |
| 500 | |
| 501 buf->b_p_key = old_key; | |
| 502 buf->b_p_cm = old_cm; | |
| 503 ml_preserve(buf, FALSE); | |
| 504 buf->b_p_key = new_key; | |
| 505 buf->b_p_cm = new_buf_cm; | |
| 506 } | |
| 2267 | 507 |
| 508 /* Set the key, method and seed to be used for reading, these must be the | |
| 509 * old values. */ | |
| 510 mfp->mf_old_key = old_key; | |
| 6817 | 511 mfp->mf_old_cm = old_method; |
| 512 if (old_method > 0 && *old_key != NUL) | |
| 2267 | 513 mch_memmove(mfp->mf_old_seed, mfp->mf_seed, MF_SEED_LEN); |
| 514 | |
| 515 /* Update block 0 with the crypt flag and may set a new seed. */ | |
| 516 ml_upd_block0(buf, UB_CRYPT); | |
| 517 | |
| 518 if (mfp->mf_infile_count > 2) | |
| 519 { | |
| 520 /* | |
| 521 * Need to read back all data blocks from disk, decrypt them with the | |
| 522 * old key/method and mark them to be written. The algorithm is | |
| 523 * similar to what happens in ml_recover(), but we skip negative block | |
| 524 * numbers. | |
| 525 */ | |
| 526 ml_flush_line(buf); /* flush buffered line */ | |
| 527 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush locked block */ | |
| 528 | |
| 529 hp = NULL; | |
| 530 bnum = 1; /* start with block 1 */ | |
| 531 page_count = 1; /* which is 1 page */ | |
| 532 idx = 0; /* start with first index in block 1 */ | |
| 533 error = 0; | |
| 534 buf->b_ml.ml_stack_top = 0; | |
|
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patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12975
diff
changeset
|
535 VIM_CLEAR(buf->b_ml.ml_stack); |
| 2267 | 536 buf->b_ml.ml_stack_size = 0; /* no stack yet */ |
| 537 | |
| 538 for ( ; !got_int; line_breakcheck()) | |
| 539 { | |
| 540 if (hp != NULL) | |
| 541 mf_put(mfp, hp, FALSE, FALSE); /* release previous block */ | |
| 542 | |
| 543 /* get the block (pointer or data) */ | |
| 544 if ((hp = mf_get(mfp, (blocknr_T)bnum, page_count)) == NULL) | |
| 545 { | |
| 546 if (bnum == 1) | |
| 547 break; | |
| 548 ++error; | |
| 549 } | |
| 550 else | |
| 551 { | |
| 552 pp = (PTR_BL *)(hp->bh_data); | |
| 553 if (pp->pb_id == PTR_ID) /* it is a pointer block */ | |
| 554 { | |
| 555 if (pp->pb_count == 0) | |
| 556 { | |
| 557 /* empty block? */ | |
| 558 ++error; | |
| 559 } | |
| 560 else if (idx < (int)pp->pb_count) /* go a block deeper */ | |
| 561 { | |
| 562 if (pp->pb_pointer[idx].pe_bnum < 0) | |
| 563 { | |
| 6817 | 564 /* Skip data block with negative block number. |
| 565 * Should not happen, because of the ml_preserve() | |
| 566 * above. Get same block again for next index. */ | |
| 567 ++idx; | |
| 2267 | 568 continue; |
| 569 } | |
| 570 | |
| 571 /* going one block deeper in the tree, new entry in | |
| 572 * stack */ | |
| 573 if ((top = ml_add_stack(buf)) < 0) | |
| 574 { | |
| 575 ++error; | |
| 576 break; /* out of memory */ | |
| 577 } | |
| 578 ip = &(buf->b_ml.ml_stack[top]); | |
| 579 ip->ip_bnum = bnum; | |
| 580 ip->ip_index = idx; | |
| 581 | |
| 582 bnum = pp->pb_pointer[idx].pe_bnum; | |
| 583 page_count = pp->pb_pointer[idx].pe_page_count; | |
| 6817 | 584 idx = 0; |
| 2267 | 585 continue; |
| 586 } | |
| 587 } | |
| 588 else /* not a pointer block */ | |
| 589 { | |
| 590 dp = (DATA_BL *)(hp->bh_data); | |
| 591 if (dp->db_id != DATA_ID) /* block id wrong */ | |
| 592 ++error; | |
| 593 else | |
| 594 { | |
| 595 /* It is a data block, need to write it back to disk. */ | |
| 596 mf_put(mfp, hp, TRUE, FALSE); | |
| 597 hp = NULL; | |
| 598 } | |
| 599 } | |
| 600 } | |
| 601 | |
| 602 if (buf->b_ml.ml_stack_top == 0) /* finished */ | |
| 603 break; | |
| 604 | |
| 605 /* go one block up in the tree */ | |
| 606 ip = &(buf->b_ml.ml_stack[--(buf->b_ml.ml_stack_top)]); | |
| 607 bnum = ip->ip_bnum; | |
| 608 idx = ip->ip_index + 1; /* go to next index */ | |
| 609 page_count = 1; | |
| 610 } | |
| 6817 | 611 if (hp != NULL) |
| 612 mf_put(mfp, hp, FALSE, FALSE); /* release previous block */ | |
| 2657 | 613 |
| 614 if (error > 0) | |
| 615 EMSG(_("E843: Error while updating swap file crypt")); | |
| 2267 | 616 } |
| 617 | |
| 618 mfp->mf_old_key = NULL; | |
| 619 } | |
| 620 #endif | |
| 621 | |
| 7 | 622 /* |
| 623 * ml_setname() is called when the file name of "buf" has been changed. | |
| 624 * It may rename the swap file. | |
| 625 */ | |
| 626 void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
627 ml_setname(buf_T *buf) |
| 7 | 628 { |
| 629 int success = FALSE; | |
| 630 memfile_T *mfp; | |
| 631 char_u *fname; | |
| 632 char_u *dirp; | |
|
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commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
633 #if defined(MSWIN) |
| 7 | 634 char_u *p; |
| 635 #endif | |
| 636 | |
| 637 mfp = buf->b_ml.ml_mfp; | |
| 638 if (mfp->mf_fd < 0) /* there is no swap file yet */ | |
| 639 { | |
| 640 /* | |
| 641 * When 'updatecount' is 0 and 'noswapfile' there is no swap file. | |
| 642 * For help files we will make a swap file now. | |
| 643 */ | |
| 5737 | 644 if (p_uc != 0 && !cmdmod.noswapfile) |
| 7 | 645 ml_open_file(buf); /* create a swap file */ |
| 646 return; | |
| 647 } | |
| 648 | |
| 649 /* | |
| 650 * Try all directories in the 'directory' option. | |
| 651 */ | |
| 652 dirp = p_dir; | |
| 653 for (;;) | |
| 654 { | |
| 655 if (*dirp == NUL) /* tried all directories, fail */ | |
| 656 break; | |
| 43 | 657 fname = findswapname(buf, &dirp, mfp->mf_fname); |
| 658 /* alloc's fname */ | |
| 3158 | 659 if (dirp == NULL) /* out of memory */ |
| 660 break; | |
| 7 | 661 if (fname == NULL) /* no file name found for this dir */ |
| 662 continue; | |
| 663 | |
|
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commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
664 #if defined(MSWIN) |
| 7 | 665 /* |
| 666 * Set full pathname for swap file now, because a ":!cd dir" may | |
| 667 * change directory without us knowing it. | |
| 668 */ | |
| 669 p = FullName_save(fname, FALSE); | |
| 670 vim_free(fname); | |
| 671 fname = p; | |
| 672 if (fname == NULL) | |
| 673 continue; | |
| 674 #endif | |
| 675 /* if the file name is the same we don't have to do anything */ | |
| 676 if (fnamecmp(fname, mfp->mf_fname) == 0) | |
| 677 { | |
| 678 vim_free(fname); | |
| 679 success = TRUE; | |
| 680 break; | |
| 681 } | |
| 682 /* need to close the swap file before renaming */ | |
| 683 if (mfp->mf_fd >= 0) | |
| 684 { | |
| 685 close(mfp->mf_fd); | |
| 686 mfp->mf_fd = -1; | |
| 687 } | |
| 688 | |
| 689 /* try to rename the swap file */ | |
| 690 if (vim_rename(mfp->mf_fname, fname) == 0) | |
| 691 { | |
| 692 success = TRUE; | |
| 693 vim_free(mfp->mf_fname); | |
| 694 mfp->mf_fname = fname; | |
| 695 vim_free(mfp->mf_ffname); | |
|
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commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
696 #if defined(MSWIN) |
| 7 | 697 mfp->mf_ffname = NULL; /* mf_fname is full pathname already */ |
| 698 #else | |
| 699 mf_set_ffname(mfp); | |
| 700 #endif | |
| 2267 | 701 ml_upd_block0(buf, UB_SAME_DIR); |
| 7 | 702 break; |
| 703 } | |
| 704 vim_free(fname); /* this fname didn't work, try another */ | |
| 705 } | |
| 706 | |
| 707 if (mfp->mf_fd == -1) /* need to (re)open the swap file */ | |
| 708 { | |
| 709 mfp->mf_fd = mch_open((char *)mfp->mf_fname, O_RDWR | O_EXTRA, 0); | |
| 710 if (mfp->mf_fd < 0) | |
| 711 { | |
| 712 /* could not (re)open the swap file, what can we do???? */ | |
| 713 EMSG(_("E301: Oops, lost the swap file!!!")); | |
| 714 return; | |
| 715 } | |
| 2003 | 716 #ifdef HAVE_FD_CLOEXEC |
| 717 { | |
| 718 int fdflags = fcntl(mfp->mf_fd, F_GETFD); | |
| 719 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
|
720 (void)fcntl(mfp->mf_fd, F_SETFD, fdflags | FD_CLOEXEC); |
| 2003 | 721 } |
| 722 #endif | |
| 7 | 723 } |
| 724 if (!success) | |
| 725 EMSG(_("E302: Could not rename swap file")); | |
| 726 } | |
| 727 | |
| 728 /* | |
| 729 * Open a file for the memfile for all buffers that are not readonly or have | |
| 730 * been modified. | |
| 731 * Used when 'updatecount' changes from zero to non-zero. | |
| 732 */ | |
| 733 void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
734 ml_open_files(void) |
| 7 | 735 { |
| 736 buf_T *buf; | |
| 737 | |
|
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fd9727ae3c49
commit https://github.com/vim/vim/commit/2932359000b2f918d5fade79ea4d124d5943cd07
Christian Brabandt <cb@256bit.org>
parents:
9536
diff
changeset
|
738 FOR_ALL_BUFFERS(buf) |
| 7 | 739 if (!buf->b_p_ro || buf->b_changed) |
| 740 ml_open_file(buf); | |
| 741 } | |
| 742 | |
| 743 /* | |
| 744 * Open a swap file for an existing memfile, if there is no swap file yet. | |
| 745 * If we are unable to find a file name, mf_fname will be NULL | |
| 746 * and the memfile will be in memory only (no recovery possible). | |
| 747 */ | |
| 748 void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
749 ml_open_file(buf_T *buf) |
| 7 | 750 { |
| 751 memfile_T *mfp; | |
| 752 char_u *fname; | |
| 753 char_u *dirp; | |
| 754 | |
| 755 mfp = buf->b_ml.ml_mfp; | |
| 5737 | 756 if (mfp == NULL || mfp->mf_fd >= 0 || !buf->b_p_swf || cmdmod.noswapfile) |
| 7 | 757 return; /* nothing to do */ |
| 758 | |
| 748 | 759 #ifdef FEAT_SPELL |
| 625 | 760 /* For a spell buffer use a temp file name. */ |
| 761 if (buf->b_spell) | |
| 762 { | |
| 6721 | 763 fname = vim_tempname('s', FALSE); |
| 625 | 764 if (fname != NULL) |
| 765 (void)mf_open_file(mfp, fname); /* consumes fname! */ | |
| 766 buf->b_may_swap = FALSE; | |
| 767 return; | |
| 768 } | |
| 769 #endif | |
| 770 | |
| 7 | 771 /* |
| 772 * Try all directories in 'directory' option. | |
| 773 */ | |
| 774 dirp = p_dir; | |
| 775 for (;;) | |
| 776 { | |
| 777 if (*dirp == NUL) | |
| 778 break; | |
|
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779 /* There is a small chance that between choosing the swap file name |
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780 * and creating it, another Vim creates the file. In that case the |
| 7 | 781 * creation will fail and we will use another directory. */ |
| 43 | 782 fname = findswapname(buf, &dirp, NULL); /* allocates fname */ |
| 3158 | 783 if (dirp == NULL) |
| 784 break; /* out of memory */ | |
| 7 | 785 if (fname == NULL) |
| 786 continue; | |
| 787 if (mf_open_file(mfp, fname) == OK) /* consumes fname! */ | |
| 788 { | |
|
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|
789 #if defined(MSWIN) |
| 7 | 790 /* |
| 791 * set full pathname for swap file now, because a ":!cd dir" may | |
| 792 * change directory without us knowing it. | |
| 793 */ | |
| 794 mf_fullname(mfp); | |
| 795 #endif | |
| 2267 | 796 ml_upd_block0(buf, UB_SAME_DIR); |
| 39 | 797 |
| 7 | 798 /* Flush block zero, so others can read it */ |
| 799 if (mf_sync(mfp, MFS_ZERO) == OK) | |
| 630 | 800 { |
| 801 /* Mark all blocks that should be in the swapfile as dirty. | |
| 802 * Needed for when the 'swapfile' option was reset, so that | |
| 803 * the swap file was deleted, and then on again. */ | |
| 804 mf_set_dirty(mfp); | |
| 7 | 805 break; |
| 630 | 806 } |
| 7 | 807 /* Writing block 0 failed: close the file and try another dir */ |
| 808 mf_close_file(buf, FALSE); | |
| 809 } | |
| 810 } | |
| 811 | |
| 812 if (mfp->mf_fname == NULL) /* Failed! */ | |
| 813 { | |
| 814 need_wait_return = TRUE; /* call wait_return later */ | |
| 815 ++no_wait_return; | |
| 816 (void)EMSG2(_("E303: Unable to open swap file for \"%s\", recovery impossible"), | |
| 3839 | 817 buf_spname(buf) != NULL ? buf_spname(buf) : buf->b_fname); |
| 7 | 818 --no_wait_return; |
| 819 } | |
| 820 | |
| 821 /* don't try to open a swap file again */ | |
| 822 buf->b_may_swap = FALSE; | |
| 823 } | |
| 824 | |
| 825 /* | |
| 826 * If still need to create a swap file, and starting to edit a not-readonly | |
| 827 * file, or reading into an existing buffer, create a swap file now. | |
| 828 */ | |
| 829 void | |
|
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830 check_need_swap( |
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831 int newfile) /* reading file into new buffer */ |
| 7 | 832 { |
| 833 if (curbuf->b_may_swap && (!curbuf->b_p_ro || !newfile)) | |
| 834 ml_open_file(curbuf); | |
| 835 } | |
| 836 | |
| 837 /* | |
| 838 * Close memline for buffer 'buf'. | |
| 839 * If 'del_file' is TRUE, delete the swap file | |
| 840 */ | |
| 841 void | |
|
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842 ml_close(buf_T *buf, int del_file) |
| 7 | 843 { |
| 844 if (buf->b_ml.ml_mfp == NULL) /* not open */ | |
| 845 return; | |
| 846 mf_close(buf->b_ml.ml_mfp, del_file); /* close the .swp file */ | |
| 847 if (buf->b_ml.ml_line_lnum != 0 && (buf->b_ml.ml_flags & ML_LINE_DIRTY)) | |
| 848 vim_free(buf->b_ml.ml_line_ptr); | |
| 849 vim_free(buf->b_ml.ml_stack); | |
| 850 #ifdef FEAT_BYTEOFF | |
|
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851 VIM_CLEAR(buf->b_ml.ml_chunksize); |
| 7 | 852 #endif |
| 853 buf->b_ml.ml_mfp = NULL; | |
| 854 | |
| 855 /* Reset the "recovered" flag, give the ATTENTION prompt the next time | |
| 856 * this buffer is loaded. */ | |
| 857 buf->b_flags &= ~BF_RECOVERED; | |
| 858 } | |
| 859 | |
| 860 /* | |
| 861 * Close all existing memlines and memfiles. | |
| 862 * Only used when exiting. | |
| 863 * When 'del_file' is TRUE, delete the memfiles. | |
| 165 | 864 * But don't delete files that were ":preserve"d when we are POSIX compatible. |
| 7 | 865 */ |
| 866 void | |
|
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867 ml_close_all(int del_file) |
| 7 | 868 { |
| 869 buf_T *buf; | |
| 870 | |
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871 FOR_ALL_BUFFERS(buf) |
| 165 | 872 ml_close(buf, del_file && ((buf->b_flags & BF_PRESERVED) == 0 |
| 873 || vim_strchr(p_cpo, CPO_PRESERVE) == NULL)); | |
| 5519 | 874 #ifdef FEAT_SPELL |
| 875 spell_delete_wordlist(); /* delete the internal wordlist */ | |
| 876 #endif | |
| 7 | 877 #ifdef TEMPDIRNAMES |
| 5519 | 878 vim_deltempdir(); /* delete created temp directory */ |
| 7 | 879 #endif |
| 880 } | |
| 881 | |
| 882 /* | |
| 883 * Close all memfiles for not modified buffers. | |
| 884 * Only use just before exiting! | |
| 885 */ | |
| 886 void | |
|
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887 ml_close_notmod(void) |
| 7 | 888 { |
| 889 buf_T *buf; | |
| 890 | |
|
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891 FOR_ALL_BUFFERS(buf) |
| 7 | 892 if (!bufIsChanged(buf)) |
| 893 ml_close(buf, TRUE); /* close all not-modified buffers */ | |
| 894 } | |
| 895 | |
| 896 /* | |
| 897 * Update the timestamp in the .swp file. | |
| 898 * Used when the file has been written. | |
| 899 */ | |
| 900 void | |
|
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901 ml_timestamp(buf_T *buf) |
| 7 | 902 { |
| 2267 | 903 ml_upd_block0(buf, UB_FNAME); |
| 904 } | |
| 905 | |
| 906 /* | |
| 907 * Return FAIL when the ID of "b0p" is wrong. | |
| 908 */ | |
| 909 static int | |
|
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910 ml_check_b0_id(ZERO_BL *b0p) |
| 2267 | 911 { |
| 912 if (b0p->b0_id[0] != BLOCK0_ID0 | |
| 913 || (b0p->b0_id[1] != BLOCK0_ID1 | |
| 914 && b0p->b0_id[1] != BLOCK0_ID1_C0 | |
| 6122 | 915 && b0p->b0_id[1] != BLOCK0_ID1_C1 |
| 916 && b0p->b0_id[1] != BLOCK0_ID1_C2) | |
| 2267 | 917 ) |
| 918 return FAIL; | |
| 919 return OK; | |
| 39 | 920 } |
| 921 | |
| 922 /* | |
| 923 * Update the timestamp or the B0_SAME_DIR flag of the .swp file. | |
| 924 */ | |
| 925 static void | |
|
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926 ml_upd_block0(buf_T *buf, upd_block0_T what) |
| 39 | 927 { |
| 7 | 928 memfile_T *mfp; |
| 929 bhdr_T *hp; | |
| 930 ZERO_BL *b0p; | |
| 931 | |
| 932 mfp = buf->b_ml.ml_mfp; | |
| 6130 | 933 if (mfp == NULL) |
| 7 | 934 return; |
| 6130 | 935 hp = mf_get(mfp, (blocknr_T)0, 1); |
| 936 if (hp == NULL) | |
| 937 { | |
| 938 #ifdef FEAT_CRYPT | |
| 939 /* Possibly update the seed in the memfile before there is a block0. */ | |
| 940 if (what == UB_CRYPT) | |
| 941 ml_set_mfp_crypt(buf); | |
| 942 #endif | |
| 943 return; | |
| 944 } | |
| 945 | |
| 7 | 946 b0p = (ZERO_BL *)(hp->bh_data); |
| 2267 | 947 if (ml_check_b0_id(b0p) == FAIL) |
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948 IEMSG(_("E304: ml_upd_block0(): Didn't get block 0??")); |
| 7 | 949 else |
| 39 | 950 { |
| 2267 | 951 if (what == UB_FNAME) |
| 39 | 952 set_b0_fname(b0p, buf); |
| 2267 | 953 #ifdef FEAT_CRYPT |
| 954 else if (what == UB_CRYPT) | |
| 955 ml_set_b0_crypt(buf, b0p); | |
| 956 #endif | |
| 957 else /* what == UB_SAME_DIR */ | |
| 39 | 958 set_b0_dir_flag(b0p, buf); |
| 959 } | |
| 7 | 960 mf_put(mfp, hp, TRUE, FALSE); |
| 961 } | |
| 962 | |
| 963 /* | |
| 964 * Write file name and timestamp into block 0 of a swap file. | |
| 965 * Also set buf->b_mtime. | |
| 966 * Don't use NameBuff[]!!! | |
| 967 */ | |
| 968 static void | |
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969 set_b0_fname(ZERO_BL *b0p, buf_T *buf) |
| 7 | 970 { |
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971 stat_T st; |
| 7 | 972 |
| 973 if (buf->b_ffname == NULL) | |
| 974 b0p->b0_fname[0] = NUL; | |
| 975 else | |
| 976 { | |
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977 #if defined(MSWIN) || defined(AMIGA) |
| 39 | 978 /* Systems that cannot translate "~user" back into a path: copy the |
| 979 * file name unmodified. Do use slashes instead of backslashes for | |
| 980 * portability. */ | |
| 2267 | 981 vim_strncpy(b0p->b0_fname, buf->b_ffname, B0_FNAME_SIZE_CRYPT - 1); |
| 39 | 982 # ifdef BACKSLASH_IN_FILENAME |
| 983 forward_slash(b0p->b0_fname); | |
| 984 # endif | |
| 7 | 985 #else |
| 986 size_t flen, ulen; | |
| 987 char_u uname[B0_UNAME_SIZE]; | |
| 988 | |
| 989 /* | |
| 990 * For a file under the home directory of the current user, we try to | |
| 991 * replace the home directory path with "~user". This helps when | |
| 992 * editing the same file on different machines over a network. | |
| 993 * First replace home dir path with "~/" with home_replace(). | |
| 994 * Then insert the user name to get "~user/". | |
| 995 */ | |
| 2267 | 996 home_replace(NULL, buf->b_ffname, b0p->b0_fname, |
| 997 B0_FNAME_SIZE_CRYPT, TRUE); | |
| 7 | 998 if (b0p->b0_fname[0] == '~') |
| 999 { | |
| 1000 flen = STRLEN(b0p->b0_fname); | |
| 1001 /* If there is no user name or it is too long, don't use "~/" */ | |
| 1002 if (get_user_name(uname, B0_UNAME_SIZE) == FAIL | |
| 2267 | 1003 || (ulen = STRLEN(uname)) + flen > B0_FNAME_SIZE_CRYPT - 1) |
| 1004 vim_strncpy(b0p->b0_fname, buf->b_ffname, | |
| 1005 B0_FNAME_SIZE_CRYPT - 1); | |
| 7 | 1006 else |
| 1007 { | |
| 1008 mch_memmove(b0p->b0_fname + ulen + 1, b0p->b0_fname + 1, flen); | |
| 1009 mch_memmove(b0p->b0_fname + 1, uname, ulen); | |
| 1010 } | |
| 1011 } | |
| 1012 #endif | |
| 1013 if (mch_stat((char *)buf->b_ffname, &st) >= 0) | |
| 1014 { | |
| 1015 long_to_char((long)st.st_mtime, b0p->b0_mtime); | |
| 1016 #ifdef CHECK_INODE | |
| 1017 long_to_char((long)st.st_ino, b0p->b0_ino); | |
| 1018 #endif | |
| 1019 buf_store_time(buf, &st, buf->b_ffname); | |
| 1020 buf->b_mtime_read = buf->b_mtime; | |
| 1021 } | |
| 1022 else | |
| 1023 { | |
| 1024 long_to_char(0L, b0p->b0_mtime); | |
| 1025 #ifdef CHECK_INODE | |
| 1026 long_to_char(0L, b0p->b0_ino); | |
| 1027 #endif | |
| 1028 buf->b_mtime = 0; | |
| 1029 buf->b_mtime_read = 0; | |
| 1030 buf->b_orig_size = 0; | |
| 1031 buf->b_orig_mode = 0; | |
| 1032 } | |
| 1033 } | |
| 39 | 1034 |
| 1035 #ifdef FEAT_MBYTE | |
| 1036 /* Also add the 'fileencoding' if there is room. */ | |
| 1037 add_b0_fenc(b0p, curbuf); | |
| 1038 #endif | |
| 7 | 1039 } |
| 1040 | |
| 1041 /* | |
| 39 | 1042 * Update the B0_SAME_DIR flag of the swap file. It's set if the file and the |
| 1043 * swapfile for "buf" are in the same directory. | |
| 1044 * This is fail safe: if we are not sure the directories are equal the flag is | |
| 1045 * not set. | |
| 1046 */ | |
| 1047 static void | |
|
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1048 set_b0_dir_flag(ZERO_BL *b0p, buf_T *buf) |
| 39 | 1049 { |
| 1050 if (same_directory(buf->b_ml.ml_mfp->mf_fname, buf->b_ffname)) | |
| 1051 b0p->b0_flags |= B0_SAME_DIR; | |
| 1052 else | |
| 1053 b0p->b0_flags &= ~B0_SAME_DIR; | |
| 1054 } | |
| 1055 | |
| 1056 #ifdef FEAT_MBYTE | |
| 1057 /* | |
| 1058 * When there is room, add the 'fileencoding' to block zero. | |
| 1059 */ | |
| 1060 static void | |
|
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1061 add_b0_fenc( |
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1062 ZERO_BL *b0p, |
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1063 buf_T *buf) |
| 39 | 1064 { |
| 1065 int n; | |
| 2267 | 1066 int size = B0_FNAME_SIZE_NOCRYPT; |
| 1067 | |
| 1068 # ifdef FEAT_CRYPT | |
| 1069 /* Without encryption use the same offset as in Vim 7.2 to be compatible. | |
| 1070 * With encryption it's OK to move elsewhere, the swap file is not | |
| 1071 * compatible anyway. */ | |
| 1072 if (*buf->b_p_key != NUL) | |
| 1073 size = B0_FNAME_SIZE_CRYPT; | |
| 1074 # endif | |
| 39 | 1075 |
| 835 | 1076 n = (int)STRLEN(buf->b_p_fenc); |
| 2267 | 1077 if ((int)STRLEN(b0p->b0_fname) + n + 1 > size) |
| 39 | 1078 b0p->b0_flags &= ~B0_HAS_FENC; |
| 1079 else | |
| 1080 { | |
| 2267 | 1081 mch_memmove((char *)b0p->b0_fname + size - n, |
| 39 | 1082 (char *)buf->b_p_fenc, (size_t)n); |
| 2267 | 1083 *(b0p->b0_fname + size - n - 1) = NUL; |
| 39 | 1084 b0p->b0_flags |= B0_HAS_FENC; |
| 1085 } | |
| 1086 } | |
| 1087 #endif | |
| 1088 | |
| 1089 | |
| 1090 /* | |
| 2267 | 1091 * Try to recover curbuf from the .swp file. |
| 7 | 1092 */ |
| 1093 void | |
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1094 ml_recover(void) |
| 7 | 1095 { |
| 1096 buf_T *buf = NULL; | |
| 1097 memfile_T *mfp = NULL; | |
| 1098 char_u *fname; | |
| 2267 | 1099 char_u *fname_used = NULL; |
| 7 | 1100 bhdr_T *hp = NULL; |
| 1101 ZERO_BL *b0p; | |
| 39 | 1102 int b0_ff; |
| 1103 char_u *b0_fenc = NULL; | |
| 2267 | 1104 #ifdef FEAT_CRYPT |
| 1105 int b0_cm = -1; | |
| 1106 #endif | |
| 7 | 1107 PTR_BL *pp; |
| 1108 DATA_BL *dp; | |
| 1109 infoptr_T *ip; | |
| 1110 blocknr_T bnum; | |
| 1111 int page_count; | |
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1112 stat_T org_stat, swp_stat; |
| 7 | 1113 int len; |
| 1114 int directly; | |
| 1115 linenr_T lnum; | |
| 1116 char_u *p; | |
| 1117 int i; | |
| 1118 long error; | |
| 1119 int cannot_open; | |
| 1120 linenr_T line_count; | |
| 1121 int has_error; | |
| 1122 int idx; | |
| 1123 int top; | |
| 1124 int txt_start; | |
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1125 off_T size; |
| 7 | 1126 int called_from_main; |
| 1127 int serious_error = TRUE; | |
| 1128 long mtime; | |
| 1129 int attr; | |
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1130 int orig_file_status = NOTDONE; |
| 7 | 1131 |
| 1132 recoverymode = TRUE; | |
| 1133 called_from_main = (curbuf->b_ml.ml_mfp == NULL); | |
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1134 attr = HL_ATTR(HLF_E); |
| 1975 | 1135 |
| 1136 /* | |
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1137 * If the file name ends in ".s[a-w][a-z]" we assume this is the swap file. |
| 1975 | 1138 * Otherwise a search is done to find the swap file(s). |
| 1139 */ | |
| 7 | 1140 fname = curbuf->b_fname; |
| 1141 if (fname == NULL) /* When there is no file name */ | |
| 1142 fname = (char_u *)""; | |
| 1143 len = (int)STRLEN(fname); | |
| 1144 if (len >= 4 && | |
| 2823 | 1145 #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
|
1146 STRNICMP(fname + len - 4, "_s", 2) |
| 7 | 1147 #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
|
1148 STRNICMP(fname + len - 4, ".s", 2) |
| 7 | 1149 #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
|
1150 == 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
|
1151 && 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
|
1152 TOLOWER_ASC(fname[len - 2])) != NULL |
| 1975 | 1153 && ASCII_ISALPHA(fname[len - 1])) |
| 7 | 1154 { |
| 1155 directly = TRUE; | |
| 2267 | 1156 fname_used = vim_strsave(fname); /* make a copy for mf_open() */ |
| 7 | 1157 } |
| 1158 else | |
| 1159 { | |
| 1160 directly = FALSE; | |
| 1161 | |
| 1162 /* count the number of matching swap files */ | |
| 2267 | 1163 len = recover_names(fname, FALSE, 0, NULL); |
| 7 | 1164 if (len == 0) /* no swap files found */ |
| 1165 { | |
| 1166 EMSG2(_("E305: No swap file found for %s"), fname); | |
| 1167 goto theend; | |
| 1168 } | |
| 1169 if (len == 1) /* one swap file found, use it */ | |
| 1170 i = 1; | |
| 1171 else /* several swap files found, choose */ | |
| 1172 { | |
| 1173 /* list the names of the swap files */ | |
| 2267 | 1174 (void)recover_names(fname, TRUE, 0, NULL); |
| 7 | 1175 msg_putchar('\n'); |
| 1176 MSG_PUTS(_("Enter number of swap file to use (0 to quit): ")); | |
| 374 | 1177 i = get_number(FALSE, NULL); |
| 7 | 1178 if (i < 1 || i > len) |
| 1179 goto theend; | |
| 1180 } | |
| 1181 /* get the swap file name that will be used */ | |
| 2267 | 1182 (void)recover_names(fname, FALSE, i, &fname_used); |
| 7 | 1183 } |
| 2267 | 1184 if (fname_used == NULL) |
| 7 | 1185 goto theend; /* out of memory */ |
| 1186 | |
| 1187 /* When called from main() still need to initialize storage structure */ | |
| 625 | 1188 if (called_from_main && ml_open(curbuf) == FAIL) |
| 7 | 1189 getout(1); |
| 1190 | |
| 2267 | 1191 /* |
| 1192 * 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
|
1193 * Only the memline and crypt information in it are really used. |
| 2267 | 1194 */ |
| 7 | 1195 buf = (buf_T *)alloc((unsigned)sizeof(buf_T)); |
| 1196 if (buf == NULL) | |
| 1197 goto theend; | |
| 2267 | 1198 |
| 1199 /* | |
| 1200 * init fields in memline struct | |
| 1201 */ | |
| 7 | 1202 buf->b_ml.ml_stack_size = 0; /* no stack yet */ |
| 1203 buf->b_ml.ml_stack = NULL; /* no stack yet */ | |
| 1204 buf->b_ml.ml_stack_top = 0; /* nothing in the stack */ | |
| 1205 buf->b_ml.ml_line_lnum = 0; /* no cached line */ | |
| 1206 buf->b_ml.ml_locked = NULL; /* no locked block */ | |
| 1207 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
|
1208 #ifdef FEAT_CRYPT |
|
9e2e63af1641
Better fix for memory access in recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2407
diff
changeset
|
1209 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
|
1210 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
|
1211 #endif |
| 7 | 1212 |
| 2267 | 1213 /* |
| 1214 * open the memfile from the old swap file | |
| 1215 */ | |
| 1216 p = vim_strsave(fname_used); /* save "fname_used" for the message: | |
| 1217 mf_open() will consume "fname_used"! */ | |
| 1218 mfp = mf_open(fname_used, O_RDONLY); | |
| 1219 fname_used = p; | |
| 7 | 1220 if (mfp == NULL || mfp->mf_fd < 0) |
| 1221 { | |
| 2267 | 1222 if (fname_used != NULL) |
| 1223 EMSG2(_("E306: Cannot open %s"), fname_used); | |
| 7 | 1224 goto theend; |
| 1225 } | |
| 1226 buf->b_ml.ml_mfp = mfp; | |
| 2267 | 1227 #ifdef FEAT_CRYPT |
| 1228 mfp->mf_buffer = buf; | |
| 1229 #endif | |
| 7 | 1230 |
| 1231 /* | |
| 1232 * The page size set in mf_open() might be different from the page size | |
| 1233 * used in the swap file, we must get it from block 0. But to read block | |
| 1234 * 0 we need a page size. Use the minimal size for block 0 here, it will | |
| 1235 * be set to the real value below. | |
| 1236 */ | |
| 1237 mfp->mf_page_size = MIN_SWAP_PAGE_SIZE; | |
| 1238 | |
| 2267 | 1239 /* |
| 1240 * try to read block 0 | |
| 1241 */ | |
| 7 | 1242 if ((hp = mf_get(mfp, (blocknr_T)0, 1)) == NULL) |
| 1243 { | |
| 1244 msg_start(); | |
| 1245 MSG_PUTS_ATTR(_("Unable to read block 0 from "), attr | MSG_HIST); | |
| 1246 msg_outtrans_attr(mfp->mf_fname, attr | MSG_HIST); | |
| 2267 | 1247 MSG_PUTS_ATTR(_("\nMaybe no changes were made or Vim did not update the swap file."), |
| 7 | 1248 attr | MSG_HIST); |
| 1249 msg_end(); | |
| 1250 goto theend; | |
| 1251 } | |
| 1252 b0p = (ZERO_BL *)(hp->bh_data); | |
| 1253 if (STRNCMP(b0p->b0_version, "VIM 3.0", 7) == 0) | |
| 1254 { | |
| 1255 msg_start(); | |
| 1256 msg_outtrans_attr(mfp->mf_fname, MSG_HIST); | |
| 1257 MSG_PUTS_ATTR(_(" cannot be used with this version of Vim.\n"), | |
| 1258 MSG_HIST); | |
| 1259 MSG_PUTS_ATTR(_("Use Vim version 3.0.\n"), MSG_HIST); | |
| 1260 msg_end(); | |
| 1261 goto theend; | |
| 1262 } | |
| 2267 | 1263 if (ml_check_b0_id(b0p) == FAIL) |
| 7 | 1264 { |
| 1265 EMSG2(_("E307: %s does not look like a Vim swap file"), mfp->mf_fname); | |
| 1266 goto theend; | |
| 1267 } | |
| 1268 if (b0_magic_wrong(b0p)) | |
| 1269 { | |
| 1270 msg_start(); | |
| 1271 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
|
1272 #if defined(MSWIN) |
| 7 | 1273 if (STRNCMP(b0p->b0_hname, "PC ", 3) == 0) |
| 1274 MSG_PUTS_ATTR(_(" cannot be used with this version of Vim.\n"), | |
| 1275 attr | MSG_HIST); | |
| 1276 else | |
| 1277 #endif | |
| 1278 MSG_PUTS_ATTR(_(" cannot be used on this computer.\n"), | |
| 1279 attr | MSG_HIST); | |
| 1280 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
|
1281 /* avoid going past the end of a corrupted hostname */ |
| 7 | 1282 b0p->b0_fname[0] = NUL; |
| 1283 MSG_PUTS_ATTR(b0p->b0_hname, attr | MSG_HIST); | |
| 1284 MSG_PUTS_ATTR(_(",\nor the file has been damaged."), attr | MSG_HIST); | |
| 1285 msg_end(); | |
| 1286 goto theend; | |
| 1287 } | |
| 1105 | 1288 |
| 2267 | 1289 #ifdef FEAT_CRYPT |
| 6122 | 1290 for (i = 0; i < (int)(sizeof(id1_codes) / sizeof(int)); ++i) |
| 1291 if (id1_codes[i] == b0p->b0_id[1]) | |
| 1292 b0_cm = i; | |
| 1293 if (b0_cm > 0) | |
| 2267 | 1294 mch_memmove(mfp->mf_seed, &b0p->b0_seed, MF_SEED_LEN); |
| 6122 | 1295 crypt_set_cm_option(buf, b0_cm < 0 ? 0 : b0_cm); |
| 2267 | 1296 #else |
| 1297 if (b0p->b0_id[1] != BLOCK0_ID1) | |
| 1298 { | |
|
2283
7e1bd501306d
Mainly documentation updates.
Bram Moolenaar <bram@vim.org>
parents:
2273
diff
changeset
|
1299 EMSG2(_("E833: %s is encrypted and this version of Vim does not support encryption"), mfp->mf_fname); |
| 2267 | 1300 goto theend; |
| 1301 } | |
| 1302 #endif | |
| 1303 | |
| 7 | 1304 /* |
| 1305 * If we guessed the wrong page size, we have to recalculate the | |
| 1306 * highest block number in the file. | |
| 1307 */ | |
| 1308 if (mfp->mf_page_size != (unsigned)char_to_long(b0p->b0_page_size)) | |
| 1309 { | |
| 1105 | 1310 unsigned previous_page_size = mfp->mf_page_size; |
| 1311 | |
| 7 | 1312 mf_new_page_size(mfp, (unsigned)char_to_long(b0p->b0_page_size)); |
| 1105 | 1313 if (mfp->mf_page_size < previous_page_size) |
| 1314 { | |
| 1315 msg_start(); | |
| 1316 msg_outtrans_attr(mfp->mf_fname, attr | MSG_HIST); | |
| 1317 MSG_PUTS_ATTR(_(" has been damaged (page size is smaller than minimum value).\n"), | |
| 1318 attr | MSG_HIST); | |
| 1319 msg_end(); | |
| 1320 goto theend; | |
| 1321 } | |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
1322 if ((size = vim_lseek(mfp->mf_fd, (off_T)0L, SEEK_END)) <= 0) |
| 7 | 1323 mfp->mf_blocknr_max = 0; /* no file or empty file */ |
| 1324 else | |
| 1325 mfp->mf_blocknr_max = (blocknr_T)(size / mfp->mf_page_size); | |
| 1326 mfp->mf_infile_count = mfp->mf_blocknr_max; | |
| 1105 | 1327 |
| 1328 /* need to reallocate the memory used to store the data */ | |
| 1329 p = alloc(mfp->mf_page_size); | |
| 1330 if (p == NULL) | |
| 1331 goto theend; | |
| 1332 mch_memmove(p, hp->bh_data, previous_page_size); | |
| 1333 vim_free(hp->bh_data); | |
| 1334 hp->bh_data = p; | |
| 1335 b0p = (ZERO_BL *)(hp->bh_data); | |
| 7 | 1336 } |
| 1337 | |
| 2267 | 1338 /* |
| 1339 * If .swp file name given directly, use name from swap file for buffer. | |
| 1340 */ | |
| 7 | 1341 if (directly) |
| 1342 { | |
| 1343 expand_env(b0p->b0_fname, NameBuff, MAXPATHL); | |
| 1344 if (setfname(curbuf, NameBuff, NULL, TRUE) == FAIL) | |
| 1345 goto theend; | |
| 1346 } | |
| 1347 | |
| 1348 home_replace(NULL, mfp->mf_fname, NameBuff, MAXPATHL, TRUE); | |
| 274 | 1349 smsg((char_u *)_("Using swap file \"%s\""), NameBuff); |
| 7 | 1350 |
| 1351 if (buf_spname(curbuf) != NULL) | |
| 3839 | 1352 vim_strncpy(NameBuff, buf_spname(curbuf), MAXPATHL - 1); |
| 7 | 1353 else |
| 1354 home_replace(NULL, curbuf->b_ffname, NameBuff, MAXPATHL, TRUE); | |
| 274 | 1355 smsg((char_u *)_("Original file \"%s\""), NameBuff); |
| 7 | 1356 msg_putchar('\n'); |
| 1357 | |
| 2267 | 1358 /* |
| 1359 * check date of swap file and original file | |
| 1360 */ | |
| 7 | 1361 mtime = char_to_long(b0p->b0_mtime); |
| 1362 if (curbuf->b_ffname != NULL | |
| 1363 && mch_stat((char *)curbuf->b_ffname, &org_stat) != -1 | |
| 1364 && ((mch_stat((char *)mfp->mf_fname, &swp_stat) != -1 | |
| 1365 && org_stat.st_mtime > swp_stat.st_mtime) | |
| 1366 || org_stat.st_mtime != mtime)) | |
| 1367 { | |
| 1368 EMSG(_("E308: Warning: Original file may have been changed")); | |
| 1369 } | |
| 1370 out_flush(); | |
| 39 | 1371 |
| 1372 /* Get the 'fileformat' and 'fileencoding' from block zero. */ | |
| 1373 b0_ff = (b0p->b0_flags & B0_FF_MASK); | |
| 1374 if (b0p->b0_flags & B0_HAS_FENC) | |
| 1375 { | |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1376 int fnsize = B0_FNAME_SIZE_NOCRYPT; |
| 2267 | 1377 |
| 1378 #ifdef FEAT_CRYPT | |
| 1379 /* Use the same size as in add_b0_fenc(). */ | |
| 1380 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
|
1381 fnsize = B0_FNAME_SIZE_CRYPT; |
| 2267 | 1382 #endif |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1383 for (p = b0p->b0_fname + fnsize; p > b0p->b0_fname && p[-1] != NUL; --p) |
| 39 | 1384 ; |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1385 b0_fenc = vim_strnsave(p, (int)(b0p->b0_fname + fnsize - p)); |
| 39 | 1386 } |
| 1387 | |
| 7 | 1388 mf_put(mfp, hp, FALSE, FALSE); /* release block 0 */ |
| 1389 hp = NULL; | |
| 1390 | |
| 1391 /* | |
| 1392 * Now that we are sure that the file is going to be recovered, clear the | |
| 1393 * contents of the current buffer. | |
| 1394 */ | |
| 1395 while (!(curbuf->b_ml.ml_flags & ML_EMPTY)) | |
| 1396 ml_delete((linenr_T)1, FALSE); | |
| 1397 | |
| 1398 /* | |
| 1399 * Try reading the original file to obtain the values of 'fileformat', | |
| 1400 * 'fileencoding', etc. Ignore errors. The text itself is not used. | |
| 2267 | 1401 * When the file is encrypted the user is asked to enter the key. |
| 7 | 1402 */ |
| 1403 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
|
1404 orig_file_status = readfile(curbuf->b_ffname, NULL, (linenr_T)0, |
| 7 | 1405 (linenr_T)0, (linenr_T)MAXLNUM, NULL, READ_NEW); |
| 1406 | |
| 2267 | 1407 #ifdef FEAT_CRYPT |
| 1408 if (b0_cm >= 0) | |
| 1409 { | |
| 1410 /* Need to ask the user for the crypt key. If this fails we continue | |
| 1411 * without a key, will probably get garbage text. */ | |
| 1412 if (*curbuf->b_p_key != NUL) | |
| 1413 { | |
| 1414 smsg((char_u *)_("Swap file is encrypted: \"%s\""), fname_used); | |
| 1415 MSG_PUTS(_("\nIf you entered a new crypt key but did not write the text file,")); | |
| 1416 MSG_PUTS(_("\nenter the new crypt key.")); | |
| 1417 MSG_PUTS(_("\nIf you wrote the text file after changing the crypt key press enter")); | |
| 1418 MSG_PUTS(_("\nto use the same key for text file and swap file")); | |
| 1419 } | |
| 1420 else | |
| 1421 smsg((char_u *)_(need_key_msg), fname_used); | |
| 6122 | 1422 buf->b_p_key = crypt_get_key(FALSE, FALSE); |
| 2267 | 1423 if (buf->b_p_key == NULL) |
| 1424 buf->b_p_key = curbuf->b_p_key; | |
| 1425 else if (*buf->b_p_key == NUL) | |
| 1426 { | |
| 1427 vim_free(buf->b_p_key); | |
| 1428 buf->b_p_key = curbuf->b_p_key; | |
| 1429 } | |
| 1430 if (buf->b_p_key == NULL) | |
| 1431 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
|
1432 } |
| 2267 | 1433 #endif |
| 7 | 1434 |
| 39 | 1435 /* Use the 'fileformat' and 'fileencoding' as stored in the swap file. */ |
| 1436 if (b0_ff != 0) | |
| 1437 set_fileformat(b0_ff - 1, OPT_LOCAL); | |
| 1438 if (b0_fenc != NULL) | |
| 1439 { | |
| 1440 set_option_value((char_u *)"fenc", 0L, b0_fenc, OPT_LOCAL); | |
| 1441 vim_free(b0_fenc); | |
| 1442 } | |
| 1443 unchanged(curbuf, TRUE); | |
| 1444 | |
| 7 | 1445 bnum = 1; /* start with block 1 */ |
| 1446 page_count = 1; /* which is 1 page */ | |
| 1447 lnum = 0; /* append after line 0 in curbuf */ | |
| 1448 line_count = 0; | |
| 1449 idx = 0; /* start with first index in block 1 */ | |
| 1450 error = 0; | |
| 1451 buf->b_ml.ml_stack_top = 0; | |
| 1452 buf->b_ml.ml_stack = NULL; | |
| 1453 buf->b_ml.ml_stack_size = 0; /* no stack yet */ | |
| 1454 | |
| 1455 if (curbuf->b_ffname == NULL) | |
| 1456 cannot_open = TRUE; | |
| 1457 else | |
| 1458 cannot_open = FALSE; | |
| 1459 | |
| 1460 serious_error = FALSE; | |
| 1461 for ( ; !got_int; line_breakcheck()) | |
| 1462 { | |
| 1463 if (hp != NULL) | |
| 1464 mf_put(mfp, hp, FALSE, FALSE); /* release previous block */ | |
| 1465 | |
| 1466 /* | |
| 1467 * get block | |
| 1468 */ | |
| 1469 if ((hp = mf_get(mfp, (blocknr_T)bnum, page_count)) == NULL) | |
| 1470 { | |
| 1471 if (bnum == 1) | |
| 1472 { | |
| 1473 EMSG2(_("E309: Unable to read block 1 from %s"), mfp->mf_fname); | |
| 1474 goto theend; | |
| 1475 } | |
| 1476 ++error; | |
| 1477 ml_append(lnum++, (char_u *)_("???MANY LINES MISSING"), | |
| 1478 (colnr_T)0, TRUE); | |
| 1479 } | |
| 1480 else /* there is a block */ | |
| 1481 { | |
| 1482 pp = (PTR_BL *)(hp->bh_data); | |
| 1483 if (pp->pb_id == PTR_ID) /* it is a pointer block */ | |
| 1484 { | |
| 1485 /* check line count when using pointer block first time */ | |
| 1486 if (idx == 0 && line_count != 0) | |
| 1487 { | |
| 1488 for (i = 0; i < (int)pp->pb_count; ++i) | |
| 1489 line_count -= pp->pb_pointer[i].pe_line_count; | |
| 1490 if (line_count != 0) | |
| 1491 { | |
| 1492 ++error; | |
| 1493 ml_append(lnum++, (char_u *)_("???LINE COUNT WRONG"), | |
| 1494 (colnr_T)0, TRUE); | |
| 1495 } | |
| 1496 } | |
| 1497 | |
| 1498 if (pp->pb_count == 0) | |
| 1499 { | |
| 1500 ml_append(lnum++, (char_u *)_("???EMPTY BLOCK"), | |
| 1501 (colnr_T)0, TRUE); | |
| 1502 ++error; | |
| 1503 } | |
| 1504 else if (idx < (int)pp->pb_count) /* go a block deeper */ | |
| 1505 { | |
| 1506 if (pp->pb_pointer[idx].pe_bnum < 0) | |
| 1507 { | |
| 1508 /* | |
| 1509 * Data block with negative block number. | |
| 1510 * Try to read lines from the original file. | |
| 1511 * This is slow, but it works. | |
| 1512 */ | |
| 1513 if (!cannot_open) | |
| 1514 { | |
| 1515 line_count = pp->pb_pointer[idx].pe_line_count; | |
| 1516 if (readfile(curbuf->b_ffname, NULL, lnum, | |
| 1517 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
|
1518 line_count, NULL, 0) != OK) |
| 7 | 1519 cannot_open = TRUE; |
| 1520 else | |
| 1521 lnum += line_count; | |
| 1522 } | |
| 1523 if (cannot_open) | |
| 1524 { | |
| 1525 ++error; | |
| 1526 ml_append(lnum++, (char_u *)_("???LINES MISSING"), | |
| 1527 (colnr_T)0, TRUE); | |
| 1528 } | |
| 1529 ++idx; /* get same block again for next index */ | |
| 1530 continue; | |
| 1531 } | |
| 1532 | |
| 1533 /* | |
| 1534 * going one block deeper in the tree | |
| 1535 */ | |
| 1536 if ((top = ml_add_stack(buf)) < 0) /* new entry in stack */ | |
| 1537 { | |
| 1538 ++error; | |
| 1539 break; /* out of memory */ | |
| 1540 } | |
| 1541 ip = &(buf->b_ml.ml_stack[top]); | |
| 1542 ip->ip_bnum = bnum; | |
| 1543 ip->ip_index = idx; | |
| 1544 | |
| 1545 bnum = pp->pb_pointer[idx].pe_bnum; | |
| 1546 line_count = pp->pb_pointer[idx].pe_line_count; | |
| 1547 page_count = pp->pb_pointer[idx].pe_page_count; | |
| 2885 | 1548 idx = 0; |
| 7 | 1549 continue; |
| 1550 } | |
| 1551 } | |
| 1552 else /* not a pointer block */ | |
| 1553 { | |
| 1554 dp = (DATA_BL *)(hp->bh_data); | |
| 1555 if (dp->db_id != DATA_ID) /* block id wrong */ | |
| 1556 { | |
| 1557 if (bnum == 1) | |
| 1558 { | |
| 1559 EMSG2(_("E310: Block 1 ID wrong (%s not a .swp file?)"), | |
| 1560 mfp->mf_fname); | |
| 1561 goto theend; | |
| 1562 } | |
| 1563 ++error; | |
| 1564 ml_append(lnum++, (char_u *)_("???BLOCK MISSING"), | |
| 1565 (colnr_T)0, TRUE); | |
| 1566 } | |
| 1567 else | |
| 1568 { | |
| 1569 /* | |
| 1570 * it is a data block | |
| 1571 * Append all the lines in this block | |
| 1572 */ | |
| 1573 has_error = FALSE; | |
| 1574 /* | |
| 1575 * check length of block | |
| 1576 * if wrong, use length in pointer block | |
| 1577 */ | |
| 1578 if (page_count * mfp->mf_page_size != dp->db_txt_end) | |
| 1579 { | |
| 1580 ml_append(lnum++, (char_u *)_("??? from here until ???END lines may be messed up"), | |
| 1581 (colnr_T)0, TRUE); | |
| 1582 ++error; | |
| 1583 has_error = TRUE; | |
| 1584 dp->db_txt_end = page_count * mfp->mf_page_size; | |
| 1585 } | |
| 1586 | |
| 1587 /* make sure there is a NUL at the end of the block */ | |
| 1588 *((char_u *)dp + dp->db_txt_end - 1) = NUL; | |
| 1589 | |
| 1590 /* | |
| 1591 * check number of lines in block | |
| 1592 * if wrong, use count in data block | |
| 1593 */ | |
| 1594 if (line_count != dp->db_line_count) | |
| 1595 { | |
| 1596 ml_append(lnum++, (char_u *)_("??? from here until ???END lines may have been inserted/deleted"), | |
| 1597 (colnr_T)0, TRUE); | |
| 1598 ++error; | |
| 1599 has_error = TRUE; | |
| 1600 } | |
| 1601 | |
| 1602 for (i = 0; i < dp->db_line_count; ++i) | |
| 1603 { | |
| 1604 txt_start = (dp->db_index[i] & DB_INDEX_MASK); | |
| 1978 | 1605 if (txt_start <= (int)HEADER_SIZE |
| 7 | 1606 || txt_start >= (int)dp->db_txt_end) |
| 1607 { | |
| 1608 p = (char_u *)"???"; | |
| 1609 ++error; | |
| 1610 } | |
| 1611 else | |
| 1612 p = (char_u *)dp + txt_start; | |
| 1613 ml_append(lnum++, p, (colnr_T)0, TRUE); | |
| 1614 } | |
| 1615 if (has_error) | |
| 1978 | 1616 ml_append(lnum++, (char_u *)_("???END"), |
| 1617 (colnr_T)0, TRUE); | |
| 7 | 1618 } |
| 1619 } | |
| 1620 } | |
| 1621 | |
| 1622 if (buf->b_ml.ml_stack_top == 0) /* finished */ | |
| 1623 break; | |
| 1624 | |
| 1625 /* | |
| 1626 * go one block up in the tree | |
| 1627 */ | |
| 1628 ip = &(buf->b_ml.ml_stack[--(buf->b_ml.ml_stack_top)]); | |
| 1629 bnum = ip->ip_bnum; | |
| 1630 idx = ip->ip_index + 1; /* go to next index */ | |
| 1631 page_count = 1; | |
| 1632 } | |
| 1633 | |
| 1634 /* | |
|
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
|
1635 * Compare the buffer contents with the original file. When they differ |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1636 * set the 'modified' flag. |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1637 * 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
|
1638 * 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
|
1639 * Line ml_line_count + 1 in the dummy empty line. |
| 7 | 1640 */ |
|
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
|
1641 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
|
1642 { |
|
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 /* Recovering an empty file results in two lines and the first line is |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1644 * empty. Don't set the modified flag then. */ |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1645 if (!(curbuf->b_ml.ml_line_count == 2 && *ml_get(1) == NUL)) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1646 { |
|
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
|
1647 changed_int(); |
|
10952
835604f3c37a
patch 8.0.0365: might free a dict item that wasn't allocated
Christian Brabandt <cb@256bit.org>
parents:
10896
diff
changeset
|
1648 ++CHANGEDTICK(curbuf); |
|
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1649 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1650 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1651 else |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1652 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1653 for (idx = 1; idx <= lnum; ++idx) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1654 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1655 /* Need to copy one line, fetching the other one may flush it. */ |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1656 p = vim_strsave(ml_get(idx)); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1657 i = STRCMP(p, ml_get(idx + lnum)); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1658 vim_free(p); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
2145
diff
changeset
|
1659 if (i != 0) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1660 { |
|
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
|
1661 changed_int(); |
|
10952
835604f3c37a
patch 8.0.0365: might free a dict item that wasn't allocated
Christian Brabandt <cb@256bit.org>
parents:
10896
diff
changeset
|
1662 ++CHANGEDTICK(curbuf); |
|
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1663 break; |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1664 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1665 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1666 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1667 |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1668 /* |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1669 * Delete the lines from the original file and the dummy line from the |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1670 * empty buffer. These will now be after the last line in the buffer. |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1671 */ |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1672 while (curbuf->b_ml.ml_line_count > lnum |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1673 && !(curbuf->b_ml.ml_flags & ML_EMPTY)) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1674 ml_delete(curbuf->b_ml.ml_line_count, FALSE); |
| 7 | 1675 curbuf->b_flags |= BF_RECOVERED; |
| 1676 | |
| 1677 recoverymode = FALSE; | |
| 1678 if (got_int) | |
| 1679 EMSG(_("E311: Recovery Interrupted")); | |
| 1680 else if (error) | |
| 1681 { | |
| 1682 ++no_wait_return; | |
| 1683 MSG(">>>>>>>>>>>>>"); | |
| 1684 EMSG(_("E312: Errors detected while recovering; look for lines starting with ???")); | |
| 1685 --no_wait_return; | |
| 1686 MSG(_("See \":help E312\" for more information.")); | |
| 1687 MSG(">>>>>>>>>>>>>"); | |
| 1688 } | |
| 1689 else | |
| 1690 { | |
|
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
|
1691 if (curbuf->b_changed) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1692 { |
|
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
|
1693 MSG(_("Recovery completed. You should check if everything is OK.")); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1694 MSG_PUTS(_("\n(You might want to write out this file under another name\n")); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1695 MSG_PUTS(_("and run diff with the original file to check for changes)")); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1696 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1697 else |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1698 MSG(_("Recovery completed. Buffer contents equals file contents.")); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1699 MSG_PUTS(_("\nYou may want to delete the .swp file now.\n\n")); |
| 7 | 1700 cmdline_row = msg_row; |
| 1701 } | |
| 2267 | 1702 #ifdef FEAT_CRYPT |
| 1703 if (*buf->b_p_key != NUL && STRCMP(curbuf->b_p_key, buf->b_p_key) != 0) | |
| 1704 { | |
| 1705 MSG_PUTS(_("Using crypt key from swap file for the text file.\n")); | |
| 1706 set_option_value((char_u *)"key", 0L, buf->b_p_key, OPT_LOCAL); | |
| 1707 } | |
| 1708 #endif | |
| 7 | 1709 redraw_curbuf_later(NOT_VALID); |
| 1710 | |
| 1711 theend: | |
| 2267 | 1712 vim_free(fname_used); |
| 7 | 1713 recoverymode = FALSE; |
| 1714 if (mfp != NULL) | |
| 1715 { | |
| 1716 if (hp != NULL) | |
| 1717 mf_put(mfp, hp, FALSE, FALSE); | |
| 1718 mf_close(mfp, FALSE); /* will also vim_free(mfp->mf_fname) */ | |
| 1719 } | |
| 1053 | 1720 if (buf != NULL) |
| 1721 { | |
| 2267 | 1722 #ifdef FEAT_CRYPT |
| 1723 if (buf->b_p_key != curbuf->b_p_key) | |
| 1724 free_string_option(buf->b_p_key); | |
|
2407
6bc102a4bff8
Fix memory access to 'cryptmethod' during recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2394
diff
changeset
|
1725 free_string_option(buf->b_p_cm); |
| 2267 | 1726 #endif |
| 1053 | 1727 vim_free(buf->b_ml.ml_stack); |
| 1728 vim_free(buf); | |
| 1729 } | |
| 7 | 1730 if (serious_error && called_from_main) |
| 1731 ml_close(curbuf, TRUE); | |
| 1732 else | |
| 1733 { | |
| 1734 apply_autocmds(EVENT_BUFREADPOST, NULL, curbuf->b_fname, FALSE, curbuf); | |
| 1735 apply_autocmds(EVENT_BUFWINENTER, NULL, curbuf->b_fname, FALSE, curbuf); | |
| 1736 } | |
| 1737 return; | |
| 1738 } | |
| 1739 | |
| 1740 /* | |
| 1741 * Find the names of swap files in current directory and the directory given | |
| 1742 * with the 'directory' option. | |
| 1743 * | |
| 1744 * Used to: | |
| 1745 * - list the swap files for "vim -r" | |
| 1746 * - count the number of swap files when recovering | |
| 1747 * - list the swap files when recovering | |
| 1748 * - find the name of the n'th swap file when recovering | |
| 1749 */ | |
| 1750 int | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1751 recover_names( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1752 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
|
1753 int list, /* when TRUE, list the swap file names */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1754 int nr, /* when non-zero, return nr'th swap file name */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1755 char_u **fname_out) /* result when "nr" > 0 */ |
| 7 | 1756 { |
| 1757 int num_names; | |
| 1758 char_u *(names[6]); | |
| 1759 char_u *tail; | |
| 1760 char_u *p; | |
| 1761 int num_files; | |
| 1762 int file_count = 0; | |
| 1763 char_u **files; | |
| 1764 int i; | |
| 1765 char_u *dirp; | |
| 1766 char_u *dir_name; | |
| 2175 | 1767 char_u *fname_res = NULL; |
|
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de0e7ca61893
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diff
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|
1768 #ifdef HAVE_READLINK |
|
de0e7ca61893
updated for version 7.2.427
Bram Moolenaar <bram@zimbu.org>
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2108
diff
changeset
|
1769 char_u fname_buf[MAXPATHL]; |
| 2175 | 1770 #endif |
| 1771 | |
| 1772 if (fname != NULL) | |
| 1773 { | |
| 1774 #ifdef HAVE_READLINK | |
| 2267 | 1775 /* Expand symlink in the file name, because the swap file is created |
| 1776 * with the actual file instead of with the symlink. */ | |
| 1777 if (resolve_symlink(fname, fname_buf) == OK) | |
| 1778 fname_res = fname_buf; | |
| 1779 else | |
|
2145
de0e7ca61893
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2108
diff
changeset
|
1780 #endif |
| 2267 | 1781 fname_res = fname; |
| 2175 | 1782 } |
| 7 | 1783 |
| 1784 if (list) | |
| 1785 { | |
|
2145
de0e7ca61893
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diff
changeset
|
1786 /* use msg() to start the scrolling properly */ |
| 7 | 1787 msg((char_u *)_("Swap files found:")); |
| 1788 msg_putchar('\n'); | |
| 1789 } | |
| 1790 | |
| 1791 /* | |
| 1792 * Do the loop for every directory in 'directory'. | |
| 1793 * First allocate some memory to put the directory name in. | |
| 1794 */ | |
| 1795 dir_name = alloc((unsigned)STRLEN(p_dir) + 1); | |
| 1796 dirp = p_dir; | |
| 1797 while (dir_name != NULL && *dirp) | |
| 1798 { | |
| 1799 /* | |
| 1800 * Isolate a directory name from *dirp and put it in dir_name (we know | |
| 1801 * it is large enough, so use 31000 for length). | |
| 1802 * Advance dirp to next directory name. | |
| 1803 */ | |
| 1804 (void)copy_option_part(&dirp, dir_name, 31000, ","); | |
| 1805 | |
| 1806 if (dir_name[0] == '.' && dir_name[1] == NUL) /* check current dir */ | |
| 1807 { | |
| 2267 | 1808 if (fname == NULL) |
| 7 | 1809 { |
| 1810 #ifdef VMS | |
| 1811 names[0] = vim_strsave((char_u *)"*_sw%"); | |
| 1812 #else | |
| 1813 names[0] = vim_strsave((char_u *)"*.sw?"); | |
| 1814 #endif | |
| 1005 | 1815 #if defined(UNIX) || defined(WIN3264) |
| 1816 /* For Unix names starting with a dot are special. MS-Windows | |
| 1817 * supports this too, on some file systems. */ | |
| 7 | 1818 names[1] = vim_strsave((char_u *)".*.sw?"); |
| 1819 names[2] = vim_strsave((char_u *)".sw?"); | |
| 1820 num_names = 3; | |
| 1821 #else | |
| 1822 # ifdef VMS | |
| 1823 names[1] = vim_strsave((char_u *)".*_sw%"); | |
| 1824 num_names = 2; | |
| 1825 # else | |
| 1826 num_names = 1; | |
| 1827 # endif | |
| 1828 #endif | |
| 1829 } | |
| 1830 else | |
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1831 num_names = recov_file_names(names, fname_res, TRUE); |
| 7 | 1832 } |
| 1833 else /* check directory dir_name */ | |
| 1834 { | |
| 2267 | 1835 if (fname == NULL) |
| 7 | 1836 { |
| 1837 #ifdef VMS | |
| 1838 names[0] = concat_fnames(dir_name, (char_u *)"*_sw%", TRUE); | |
| 1839 #else | |
| 1840 names[0] = concat_fnames(dir_name, (char_u *)"*.sw?", TRUE); | |
| 1841 #endif | |
| 1005 | 1842 #if defined(UNIX) || defined(WIN3264) |
| 1843 /* For Unix names starting with a dot are special. MS-Windows | |
| 1844 * supports this too, on some file systems. */ | |
| 7 | 1845 names[1] = concat_fnames(dir_name, (char_u *)".*.sw?", TRUE); |
| 1846 names[2] = concat_fnames(dir_name, (char_u *)".sw?", TRUE); | |
| 1847 num_names = 3; | |
| 1848 #else | |
| 1849 # ifdef VMS | |
| 1850 names[1] = concat_fnames(dir_name, (char_u *)".*_sw%", TRUE); | |
| 1851 num_names = 2; | |
| 1852 # else | |
| 1853 num_names = 1; | |
| 1854 # endif | |
| 1855 #endif | |
| 1856 } | |
| 1857 else | |
| 1858 { | |
| 1859 #if defined(UNIX) || defined(WIN3264) | |
|
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1860 int len = (int)STRLEN(dir_name); |
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1861 |
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1862 p = dir_name + len; |
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1863 if (after_pathsep(dir_name, p) && len > 1 && p[-1] == p[-2]) |
| 7 | 1864 { |
| 1865 /* Ends with '//', Use Full path for swap name */ | |
|
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1866 tail = make_percent_swname(dir_name, fname_res); |
| 7 | 1867 } |
| 1868 else | |
| 1869 #endif | |
| 1870 { | |
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1871 tail = gettail(fname_res); |
| 7 | 1872 tail = concat_fnames(dir_name, tail, TRUE); |
| 1873 } | |
| 1874 if (tail == NULL) | |
| 1875 num_names = 0; | |
| 1876 else | |
| 1877 { | |
| 1878 num_names = recov_file_names(names, tail, FALSE); | |
| 1879 vim_free(tail); | |
| 1880 } | |
| 1881 } | |
| 1882 } | |
| 1883 | |
| 1884 /* check for out-of-memory */ | |
| 1885 for (i = 0; i < num_names; ++i) | |
| 1886 { | |
| 1887 if (names[i] == NULL) | |
| 1888 { | |
| 1889 for (i = 0; i < num_names; ++i) | |
| 1890 vim_free(names[i]); | |
| 1891 num_names = 0; | |
| 1892 } | |
| 1893 } | |
| 1894 if (num_names == 0) | |
| 1895 num_files = 0; | |
| 1896 else if (expand_wildcards(num_names, names, &num_files, &files, | |
| 1897 EW_KEEPALL|EW_FILE|EW_SILENT) == FAIL) | |
| 1898 num_files = 0; | |
| 1899 | |
| 1900 /* | |
| 1901 * When no swap file found, wildcard expansion might have failed (e.g. | |
| 1902 * not able to execute the shell). | |
| 1903 * Try finding a swap file by simply adding ".swp" to the file name. | |
| 1904 */ | |
| 2267 | 1905 if (*dirp == NUL && file_count + num_files == 0 && fname != NULL) |
| 7 | 1906 { |
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1907 stat_T st; |
| 7 | 1908 char_u *swapname; |
| 1909 | |
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1910 swapname = modname(fname_res, |
| 2823 | 1911 #if defined(VMS) |
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1912 (char_u *)"_swp", FALSE |
| 7 | 1913 #else |
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1914 (char_u *)".swp", TRUE |
| 7 | 1915 #endif |
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1916 ); |
| 7 | 1917 if (swapname != NULL) |
| 1918 { | |
| 1919 if (mch_stat((char *)swapname, &st) != -1) /* It exists! */ | |
| 1920 { | |
| 1921 files = (char_u **)alloc((unsigned)sizeof(char_u *)); | |
| 1922 if (files != NULL) | |
| 1923 { | |
| 1924 files[0] = swapname; | |
| 1925 swapname = NULL; | |
| 1926 num_files = 1; | |
| 1927 } | |
| 1928 } | |
| 1929 vim_free(swapname); | |
| 1930 } | |
| 1931 } | |
| 1932 | |
| 1933 /* | |
| 1934 * remove swapfile name of the current buffer, it must be ignored | |
| 1935 */ | |
| 1936 if (curbuf->b_ml.ml_mfp != NULL | |
| 1937 && (p = curbuf->b_ml.ml_mfp->mf_fname) != NULL) | |
| 1938 { | |
| 1939 for (i = 0; i < num_files; ++i) | |
| 1940 if (fullpathcmp(p, files[i], TRUE) & FPC_SAME) | |
| 1941 { | |
| 1855 | 1942 /* Remove the name from files[i]. Move further entries |
| 1943 * down. When the array becomes empty free it here, since | |
| 1944 * FreeWild() won't be called below. */ | |
| 7 | 1945 vim_free(files[i]); |
| 1855 | 1946 if (--num_files == 0) |
| 1947 vim_free(files); | |
| 1948 else | |
| 1949 for ( ; i < num_files; ++i) | |
| 1950 files[i] = files[i + 1]; | |
| 7 | 1951 } |
| 1952 } | |
| 838 | 1953 if (nr > 0) |
| 7 | 1954 { |
| 1955 file_count += num_files; | |
| 1956 if (nr <= file_count) | |
| 1957 { | |
| 2267 | 1958 *fname_out = vim_strsave( |
| 1959 files[nr - 1 + num_files - file_count]); | |
| 7 | 1960 dirp = (char_u *)""; /* stop searching */ |
| 1961 } | |
| 1962 } | |
| 1963 else if (list) | |
| 1964 { | |
| 1965 if (dir_name[0] == '.' && dir_name[1] == NUL) | |
| 1966 { | |
| 2267 | 1967 if (fname == NULL) |
| 7 | 1968 MSG_PUTS(_(" In current directory:\n")); |
| 1969 else | |
| 1970 MSG_PUTS(_(" Using specified name:\n")); | |
| 1971 } | |
| 1972 else | |
| 1973 { | |
| 1974 MSG_PUTS(_(" In directory ")); | |
| 1975 msg_home_replace(dir_name); | |
| 1976 MSG_PUTS(":\n"); | |
| 1977 } | |
| 1978 | |
| 1979 if (num_files) | |
| 1980 { | |
| 1981 for (i = 0; i < num_files; ++i) | |
| 1982 { | |
| 1983 /* print the swap file name */ | |
| 1984 msg_outnum((long)++file_count); | |
| 1985 MSG_PUTS(". "); | |
| 1986 msg_puts(gettail(files[i])); | |
| 1987 msg_putchar('\n'); | |
| 1988 (void)swapfile_info(files[i]); | |
| 1989 } | |
| 1990 } | |
| 1991 else | |
| 1992 MSG_PUTS(_(" -- none --\n")); | |
| 1993 out_flush(); | |
| 1994 } | |
| 1995 else | |
| 1996 file_count += num_files; | |
| 1997 | |
| 1998 for (i = 0; i < num_names; ++i) | |
| 1999 vim_free(names[i]); | |
| 838 | 2000 if (num_files > 0) |
| 2001 FreeWild(num_files, files); | |
| 7 | 2002 } |
| 2003 vim_free(dir_name); | |
| 2004 return file_count; | |
| 2005 } | |
| 2006 | |
|
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2007 #if defined(UNIX) || defined(WIN3264) || defined(PROTO) |
| 7 | 2008 /* |
|
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2009 * Need _very_ long file names. |
| 7 | 2010 * Append the full path to name with path separators made into percent |
| 2011 * signs, to dir. An unnamed buffer is handled as "" (<currentdir>/"") | |
| 2012 */ | |
|
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2013 char_u * |
|
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2014 make_percent_swname(char_u *dir, char_u *name) |
| 7 | 2015 { |
|
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2016 char_u *d = NULL, *s, *f; |
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2017 |
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2018 f = fix_fname(name != NULL ? name : (char_u *)""); |
| 7 | 2019 if (f != NULL) |
| 2020 { | |
| 2021 s = alloc((unsigned)(STRLEN(f) + 1)); | |
| 2022 if (s != NULL) | |
| 2023 { | |
| 39 | 2024 STRCPY(s, f); |
|
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|
2025 for (d = s; *d != NUL; MB_PTR_ADV(d)) |
| 39 | 2026 if (vim_ispathsep(*d)) |
| 2027 *d = '%'; | |
| 7 | 2028 d = concat_fnames(dir, s, TRUE); |
| 2029 vim_free(s); | |
| 2030 } | |
| 2031 vim_free(f); | |
| 2032 } | |
| 2033 return d; | |
| 2034 } | |
| 2035 #endif | |
| 2036 | |
|
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|
2037 #if (defined(UNIX) || defined(VMS)) && (defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)) |
| 7 | 2038 static int process_still_running; |
| 2039 #endif | |
| 2040 | |
| 2041 /* | |
| 580 | 2042 * Give information about an existing swap file. |
| 7 | 2043 * Returns timestamp (0 when unknown). |
| 2044 */ | |
| 2045 static time_t | |
|
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2046 swapfile_info(char_u *fname) |
| 7 | 2047 { |
|
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diff
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|
2048 stat_T st; |
| 7 | 2049 int fd; |
| 2050 struct block0 b0; | |
| 2051 time_t x = (time_t)0; | |
| 1001 | 2052 char *p; |
| 7 | 2053 #ifdef UNIX |
| 2054 char_u uname[B0_UNAME_SIZE]; | |
| 2055 #endif | |
| 2056 | |
| 2057 /* print the swap file date */ | |
| 2058 if (mch_stat((char *)fname, &st) != -1) | |
| 2059 { | |
| 2060 #ifdef UNIX | |
| 2061 /* print name of owner of the file */ | |
| 2062 if (mch_get_uname(st.st_uid, uname, B0_UNAME_SIZE) == OK) | |
| 2063 { | |
| 2064 MSG_PUTS(_(" owned by: ")); | |
| 2065 msg_outtrans(uname); | |
| 2066 MSG_PUTS(_(" dated: ")); | |
| 2067 } | |
| 2068 else | |
| 2069 #endif | |
| 2070 MSG_PUTS(_(" dated: ")); | |
| 2071 x = st.st_mtime; /* Manx C can't do &st.st_mtime */ | |
| 1001 | 2072 p = ctime(&x); /* includes '\n' */ |
| 2073 if (p == NULL) | |
| 2074 MSG_PUTS("(invalid)\n"); | |
| 2075 else | |
| 2076 MSG_PUTS(p); | |
| 7 | 2077 } |
| 2078 | |
| 2079 /* | |
| 2080 * print the original file name | |
| 2081 */ | |
| 2082 fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
| 2083 if (fd >= 0) | |
| 2084 { | |
| 2664 | 2085 if (read_eintr(fd, &b0, sizeof(b0)) == sizeof(b0)) |
| 7 | 2086 { |
| 2087 if (STRNCMP(b0.b0_version, "VIM 3.0", 7) == 0) | |
| 2088 { | |
| 2089 MSG_PUTS(_(" [from Vim version 3.0]")); | |
| 2090 } | |
| 2267 | 2091 else if (ml_check_b0_id(&b0) == FAIL) |
| 7 | 2092 { |
| 2093 MSG_PUTS(_(" [does not look like a Vim swap file]")); | |
| 2094 } | |
| 2095 else | |
| 2096 { | |
| 2097 MSG_PUTS(_(" file name: ")); | |
| 2098 if (b0.b0_fname[0] == NUL) | |
| 9 | 2099 MSG_PUTS(_("[No Name]")); |
| 7 | 2100 else |
| 2101 msg_outtrans(b0.b0_fname); | |
| 2102 | |
| 2103 MSG_PUTS(_("\n modified: ")); | |
| 2104 MSG_PUTS(b0.b0_dirty ? _("YES") : _("no")); | |
| 2105 | |
| 2106 if (*(b0.b0_uname) != NUL) | |
| 2107 { | |
| 2108 MSG_PUTS(_("\n user name: ")); | |
| 2109 msg_outtrans(b0.b0_uname); | |
| 2110 } | |
| 2111 | |
| 2112 if (*(b0.b0_hname) != NUL) | |
| 2113 { | |
| 2114 if (*(b0.b0_uname) != NUL) | |
| 2115 MSG_PUTS(_(" host name: ")); | |
| 2116 else | |
| 2117 MSG_PUTS(_("\n host name: ")); | |
| 2118 msg_outtrans(b0.b0_hname); | |
| 2119 } | |
| 2120 | |
| 2121 if (char_to_long(b0.b0_pid) != 0L) | |
| 2122 { | |
| 2123 MSG_PUTS(_("\n process ID: ")); | |
| 2124 msg_outnum(char_to_long(b0.b0_pid)); | |
|
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|
2125 #if defined(UNIX) |
| 7 | 2126 /* EMX kill() not working correctly, it seems */ |
| 2127 if (kill((pid_t)char_to_long(b0.b0_pid), 0) == 0) | |
| 2128 { | |
| 2129 MSG_PUTS(_(" (still running)")); | |
| 2130 # if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) | |
| 2131 process_still_running = TRUE; | |
| 2132 # endif | |
| 2133 } | |
| 2134 #endif | |
| 2135 } | |
| 2136 | |
| 2137 if (b0_magic_wrong(&b0)) | |
| 2138 { | |
|
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|
2139 #if defined(MSWIN) |
| 7 | 2140 if (STRNCMP(b0.b0_hname, "PC ", 3) == 0) |
| 2141 MSG_PUTS(_("\n [not usable with this version of Vim]")); | |
| 2142 else | |
| 2143 #endif | |
| 2144 MSG_PUTS(_("\n [not usable on this computer]")); | |
| 2145 } | |
| 2146 } | |
| 2147 } | |
| 2148 else | |
| 2149 MSG_PUTS(_(" [cannot be read]")); | |
| 2150 close(fd); | |
| 2151 } | |
| 2152 else | |
| 2153 MSG_PUTS(_(" [cannot be opened]")); | |
| 2154 msg_putchar('\n'); | |
| 2155 | |
| 2156 return x; | |
| 2157 } | |
| 2158 | |
| 2159 static int | |
|
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diff
changeset
|
2160 recov_file_names(char_u **names, char_u *path, int prepend_dot) |
| 7 | 2161 { |
| 2162 int num_names; | |
| 2163 | |
| 2164 /* | |
| 2165 * (Win32 and Win64) never short names, but do prepend a dot. | |
| 2166 * (Not MS-DOS or Win32 or Win64) maybe short name, maybe not: Try both. | |
| 2167 * Only use the short name if it is different. | |
| 2168 */ | |
| 2169 char_u *p; | |
| 2170 int i; | |
| 2171 # ifndef WIN3264 | |
| 2172 int shortname = curbuf->b_shortname; | |
| 2173 | |
| 2174 curbuf->b_shortname = FALSE; | |
| 2175 # endif | |
| 2176 | |
| 2177 num_names = 0; | |
| 2178 | |
| 2179 /* | |
| 2180 * May also add the file name with a dot prepended, for swap file in same | |
| 2181 * dir as original file. | |
| 2182 */ | |
| 2183 if (prepend_dot) | |
| 2184 { | |
| 2185 names[num_names] = modname(path, (char_u *)".sw?", TRUE); | |
| 2186 if (names[num_names] == NULL) | |
| 2187 goto end; | |
| 2188 ++num_names; | |
| 2189 } | |
| 2190 | |
| 2191 /* | |
| 2192 * Form the normal swap file name pattern by appending ".sw?". | |
| 2193 */ | |
| 2194 #ifdef VMS | |
| 2195 names[num_names] = concat_fnames(path, (char_u *)"_sw%", FALSE); | |
| 2196 #else | |
| 2197 names[num_names] = concat_fnames(path, (char_u *)".sw?", FALSE); | |
| 2198 #endif | |
| 2199 if (names[num_names] == NULL) | |
| 2200 goto end; | |
| 2201 if (num_names >= 1) /* check if we have the same name twice */ | |
| 2202 { | |
| 2203 p = names[num_names - 1]; | |
| 2204 i = (int)STRLEN(names[num_names - 1]) - (int)STRLEN(names[num_names]); | |
| 2205 if (i > 0) | |
| 2206 p += i; /* file name has been expanded to full path */ | |
| 2207 | |
| 2208 if (STRCMP(p, names[num_names]) != 0) | |
| 2209 ++num_names; | |
| 2210 else | |
| 2211 vim_free(names[num_names]); | |
| 2212 } | |
| 2213 else | |
| 2214 ++num_names; | |
| 2215 | |
| 2216 # ifndef WIN3264 | |
| 2217 /* | |
| 2218 * Also try with 'shortname' set, in case the file is on a DOS filesystem. | |
| 2219 */ | |
| 2220 curbuf->b_shortname = TRUE; | |
| 2221 #ifdef VMS | |
| 2222 names[num_names] = modname(path, (char_u *)"_sw%", FALSE); | |
| 2223 #else | |
| 2224 names[num_names] = modname(path, (char_u *)".sw?", FALSE); | |
| 2225 #endif | |
| 2226 if (names[num_names] == NULL) | |
| 2227 goto end; | |
| 2228 | |
| 2229 /* | |
| 2230 * Remove the one from 'shortname', if it's the same as with 'noshortname'. | |
| 2231 */ | |
| 2232 p = names[num_names]; | |
| 2233 i = STRLEN(names[num_names]) - STRLEN(names[num_names - 1]); | |
| 2234 if (i > 0) | |
| 2235 p += i; /* file name has been expanded to full path */ | |
| 2236 if (STRCMP(names[num_names - 1], p) == 0) | |
| 2237 vim_free(names[num_names]); | |
| 2238 else | |
| 2239 ++num_names; | |
| 2240 # endif | |
| 2241 | |
| 2242 end: | |
| 2243 # ifndef WIN3264 | |
| 2244 curbuf->b_shortname = shortname; | |
| 2245 # endif | |
| 2246 | |
| 2247 return num_names; | |
| 2248 } | |
| 2249 | |
| 2250 /* | |
| 2251 * sync all memlines | |
| 2252 * | |
| 2253 * If 'check_file' is TRUE, check if original file exists and was not changed. | |
| 2254 * If 'check_char' is TRUE, stop syncing when character becomes available, but | |
| 2255 * always sync at least one block. | |
| 2256 */ | |
| 2257 void | |
|
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2258 ml_sync_all(int check_file, int check_char) |
| 7 | 2259 { |
| 2260 buf_T *buf; | |
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2261 stat_T st; |
| 7 | 2262 |
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parents:
9536
diff
changeset
|
2263 FOR_ALL_BUFFERS(buf) |
| 7 | 2264 { |
| 2265 if (buf->b_ml.ml_mfp == NULL || buf->b_ml.ml_mfp->mf_fname == NULL) | |
| 2266 continue; /* no file */ | |
| 2267 | |
| 2268 ml_flush_line(buf); /* flush buffered line */ | |
| 2269 /* flush locked block */ | |
| 2270 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); | |
| 2271 if (bufIsChanged(buf) && check_file && mf_need_trans(buf->b_ml.ml_mfp) | |
| 2272 && buf->b_ffname != NULL) | |
| 2273 { | |
| 2274 /* | |
| 2275 * If the original file does not exist anymore or has been changed | |
| 2276 * call ml_preserve() to get rid of all negative numbered blocks. | |
| 2277 */ | |
| 2278 if (mch_stat((char *)buf->b_ffname, &st) == -1 | |
| 2279 || st.st_mtime != buf->b_mtime_read | |
|
2241
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|
2280 || st.st_size != buf->b_orig_size) |
| 7 | 2281 { |
| 2282 ml_preserve(buf, FALSE); | |
| 2283 did_check_timestamps = FALSE; | |
| 2284 need_check_timestamps = TRUE; /* give message later */ | |
| 2285 } | |
| 2286 } | |
| 2287 if (buf->b_ml.ml_mfp->mf_dirty) | |
| 2288 { | |
| 2289 (void)mf_sync(buf->b_ml.ml_mfp, (check_char ? MFS_STOP : 0) | |
| 2290 | (bufIsChanged(buf) ? MFS_FLUSH : 0)); | |
| 2291 if (check_char && ui_char_avail()) /* character available now */ | |
| 2292 break; | |
| 2293 } | |
| 2294 } | |
| 2295 } | |
| 2296 | |
| 2297 /* | |
| 2298 * sync one buffer, including negative blocks | |
| 2299 * | |
| 2300 * after this all the blocks are in the swap file | |
| 2301 * | |
| 2302 * Used for the :preserve command and when the original file has been | |
| 2303 * changed or deleted. | |
| 2304 * | |
| 2305 * when message is TRUE the success of preserving is reported | |
| 2306 */ | |
| 2307 void | |
|
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diff
changeset
|
2308 ml_preserve(buf_T *buf, int message) |
| 7 | 2309 { |
| 2310 bhdr_T *hp; | |
| 2311 linenr_T lnum; | |
| 2312 memfile_T *mfp = buf->b_ml.ml_mfp; | |
| 2313 int status; | |
| 2314 int got_int_save = got_int; | |
| 2315 | |
| 2316 if (mfp == NULL || mfp->mf_fname == NULL) | |
| 2317 { | |
| 2318 if (message) | |
| 2319 EMSG(_("E313: Cannot preserve, there is no swap file")); | |
| 2320 return; | |
| 2321 } | |
| 2322 | |
| 2323 /* We only want to stop when interrupted here, not when interrupted | |
| 2324 * before. */ | |
| 2325 got_int = FALSE; | |
| 2326 | |
| 2327 ml_flush_line(buf); /* flush buffered line */ | |
| 2328 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush locked block */ | |
| 2329 status = mf_sync(mfp, MFS_ALL | MFS_FLUSH); | |
| 2330 | |
| 2331 /* stack is invalid after mf_sync(.., MFS_ALL) */ | |
| 2332 buf->b_ml.ml_stack_top = 0; | |
| 2333 | |
| 2334 /* | |
| 2335 * Some of the data blocks may have been changed from negative to | |
| 2336 * positive block number. In that case the pointer blocks need to be | |
| 2337 * updated. | |
| 2338 * | |
| 2339 * We don't know in which pointer block the references are, so we visit | |
| 2340 * all data blocks until there are no more translations to be done (or | |
| 2341 * we hit the end of the file, which can only happen in case a write fails, | |
| 2342 * e.g. when file system if full). | |
| 2343 * ml_find_line() does the work by translating the negative block numbers | |
| 2344 * when getting the first line of each data block. | |
| 2345 */ | |
| 2346 if (mf_need_trans(mfp) && !got_int) | |
| 2347 { | |
| 2348 lnum = 1; | |
| 2349 while (mf_need_trans(mfp) && lnum <= buf->b_ml.ml_line_count) | |
| 2350 { | |
| 2351 hp = ml_find_line(buf, lnum, ML_FIND); | |
| 2352 if (hp == NULL) | |
| 2353 { | |
| 2354 status = FAIL; | |
| 2355 goto theend; | |
| 2356 } | |
| 2357 CHECK(buf->b_ml.ml_locked_low != lnum, "low != lnum"); | |
| 2358 lnum = buf->b_ml.ml_locked_high + 1; | |
| 2359 } | |
| 2360 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush locked block */ | |
| 2361 /* sync the updated pointer blocks */ | |
| 2362 if (mf_sync(mfp, MFS_ALL | MFS_FLUSH) == FAIL) | |
| 2363 status = FAIL; | |
| 2364 buf->b_ml.ml_stack_top = 0; /* stack is invalid now */ | |
| 2365 } | |
| 2366 theend: | |
| 2367 got_int |= got_int_save; | |
| 2368 | |
| 2369 if (message) | |
| 2370 { | |
| 2371 if (status == OK) | |
| 2372 MSG(_("File preserved")); | |
| 2373 else | |
| 2374 EMSG(_("E314: Preserve failed")); | |
| 2375 } | |
| 2376 } | |
| 2377 | |
| 2378 /* | |
| 2379 * NOTE: The pointer returned by the ml_get_*() functions only remains valid | |
| 2380 * until the next call! | |
| 2381 * line1 = ml_get(1); | |
| 2382 * line2 = ml_get(2); // line1 is now invalid! | |
| 2383 * Make a copy of the line if necessary. | |
| 2384 */ | |
| 2385 /* | |
| 2657 | 2386 * Return a pointer to a (read-only copy of a) line. |
| 7 | 2387 * |
| 2388 * On failure an error message is given and IObuff is returned (to avoid | |
| 2389 * having to check for error everywhere). | |
| 2390 */ | |
| 2391 char_u * | |
|
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|
2392 ml_get(linenr_T lnum) |
| 7 | 2393 { |
| 2394 return ml_get_buf(curbuf, lnum, FALSE); | |
| 2395 } | |
| 2396 | |
| 2397 /* | |
| 2657 | 2398 * Return pointer to position "pos". |
| 7 | 2399 */ |
| 2400 char_u * | |
|
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|
2401 ml_get_pos(pos_T *pos) |
| 7 | 2402 { |
| 2403 return (ml_get_buf(curbuf, pos->lnum, FALSE) + pos->col); | |
| 2404 } | |
| 2405 | |
| 2406 /* | |
| 2657 | 2407 * Return pointer to cursor line. |
| 7 | 2408 */ |
| 2409 char_u * | |
|
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|
2410 ml_get_curline(void) |
| 7 | 2411 { |
| 2412 return ml_get_buf(curbuf, curwin->w_cursor.lnum, FALSE); | |
| 2413 } | |
| 2414 | |
| 2415 /* | |
| 2657 | 2416 * Return pointer to cursor position. |
| 7 | 2417 */ |
| 2418 char_u * | |
|
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|
2419 ml_get_cursor(void) |
| 7 | 2420 { |
| 2421 return (ml_get_buf(curbuf, curwin->w_cursor.lnum, FALSE) + | |
| 2422 curwin->w_cursor.col); | |
| 2423 } | |
| 2424 | |
| 2425 /* | |
| 2657 | 2426 * Return a pointer to a line in a specific buffer |
| 7 | 2427 * |
| 2428 * "will_change": if TRUE mark the buffer dirty (chars in the line will be | |
| 2429 * changed) | |
| 2430 */ | |
| 2431 char_u * | |
|
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|
2432 ml_get_buf( |
|
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|
2433 buf_T *buf, |
|
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|
2434 linenr_T lnum, |
|
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diff
changeset
|
2435 int will_change) /* line will be changed */ |
| 7 | 2436 { |
| 1068 | 2437 bhdr_T *hp; |
| 2438 DATA_BL *dp; | |
| 2439 char_u *ptr; | |
| 2440 static int recursive = 0; | |
| 7 | 2441 |
| 2442 if (lnum > buf->b_ml.ml_line_count) /* invalid line number */ | |
| 2443 { | |
| 1068 | 2444 if (recursive == 0) |
| 2445 { | |
| 2446 /* Avoid giving this message for a recursive call, may happen when | |
| 2447 * the GUI redraws part of the text. */ | |
| 2448 ++recursive; | |
|
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|
2449 IEMSGN(_("E315: ml_get: invalid lnum: %ld"), lnum); |
| 1068 | 2450 --recursive; |
| 2451 } | |
| 7 | 2452 errorret: |
| 2453 STRCPY(IObuff, "???"); | |
| 2454 return IObuff; | |
| 2455 } | |
| 2456 if (lnum <= 0) /* pretend line 0 is line 1 */ | |
| 2457 lnum = 1; | |
| 2458 | |
| 2459 if (buf->b_ml.ml_mfp == NULL) /* there are no lines */ | |
| 2460 return (char_u *)""; | |
| 2461 | |
|
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|
2462 /* |
|
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|
2463 * See if it is the same line as requested last time. |
|
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|
2464 * Otherwise may need to flush last used line. |
|
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|
2465 * Don't use the last used line when 'swapfile' is reset, need to load all |
|
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|
2466 * blocks. |
|
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|
2467 */ |
| 1066 | 2468 if (buf->b_ml.ml_line_lnum != lnum || mf_dont_release) |
| 7 | 2469 { |
| 2470 ml_flush_line(buf); | |
| 2471 | |
| 2472 /* | |
| 2473 * Find the data block containing the line. | |
| 2474 * This also fills the stack with the blocks from the root to the data | |
| 2475 * block and releases any locked block. | |
| 2476 */ | |
| 2477 if ((hp = ml_find_line(buf, lnum, ML_FIND)) == NULL) | |
| 2478 { | |
| 1068 | 2479 if (recursive == 0) |
| 2480 { | |
| 2481 /* Avoid giving this message for a recursive call, may happen | |
| 2482 * when the GUI redraws part of the text. */ | |
| 2483 ++recursive; | |
|
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diff
changeset
|
2484 IEMSGN(_("E316: ml_get: cannot find line %ld"), lnum); |
| 1068 | 2485 --recursive; |
| 2486 } | |
| 7 | 2487 goto errorret; |
| 2488 } | |
| 2489 | |
| 2490 dp = (DATA_BL *)(hp->bh_data); | |
| 2491 | |
| 2492 ptr = (char_u *)dp + ((dp->db_index[lnum - buf->b_ml.ml_locked_low]) & DB_INDEX_MASK); | |
| 2493 buf->b_ml.ml_line_ptr = ptr; | |
| 2494 buf->b_ml.ml_line_lnum = lnum; | |
| 2495 buf->b_ml.ml_flags &= ~ML_LINE_DIRTY; | |
| 2496 } | |
| 2497 if (will_change) | |
| 2498 buf->b_ml.ml_flags |= (ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 2499 | |
| 2500 return buf->b_ml.ml_line_ptr; | |
| 2501 } | |
| 2502 | |
| 2503 /* | |
| 2504 * Check if a line that was just obtained by a call to ml_get | |
| 2505 * is in allocated memory. | |
| 2506 */ | |
| 2507 int | |
|
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|
2508 ml_line_alloced(void) |
| 7 | 2509 { |
| 2510 return (curbuf->b_ml.ml_flags & ML_LINE_DIRTY); | |
| 2511 } | |
| 2512 | |
| 2513 /* | |
| 2514 * Append a line after lnum (may be 0 to insert a line in front of the file). | |
| 2515 * "line" does not need to be allocated, but can't be another line in a | |
| 2516 * buffer, unlocking may make it invalid. | |
| 2517 * | |
| 2518 * newfile: TRUE when starting to edit a new file, meaning that pe_old_lnum | |
| 2519 * will be set for recovery | |
| 2520 * Check: The caller of this function should probably also call | |
| 2521 * appended_lines(). | |
| 2522 * | |
| 2523 * return FAIL for failure, OK otherwise | |
| 2524 */ | |
| 2525 int | |
|
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|
2526 ml_append( |
|
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|
2527 linenr_T lnum, /* append after this line (can be 0) */ |
|
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|
2528 char_u *line, /* text of the new line */ |
|
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diff
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|
2529 colnr_T len, /* length of new line, including NUL, or 0 */ |
|
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diff
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|
2530 int newfile) /* flag, see above */ |
| 7 | 2531 { |
| 2532 /* When starting up, we might still need to create the memfile */ | |
|
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|
2533 if (curbuf->b_ml.ml_mfp == NULL && open_buffer(FALSE, NULL, 0) == FAIL) |
| 7 | 2534 return FAIL; |
| 2535 | |
| 2536 if (curbuf->b_ml.ml_line_lnum != 0) | |
| 2537 ml_flush_line(curbuf); | |
| 2538 return ml_append_int(curbuf, lnum, line, len, newfile, FALSE); | |
| 2539 } | |
| 2540 | |
|
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|
2541 #if defined(FEAT_SPELL) || defined(FEAT_QUICKFIX) || defined(PROTO) |
| 625 | 2542 /* |
| 2543 * Like ml_append() but for an arbitrary buffer. The buffer must already have | |
| 2544 * a memline. | |
| 2545 */ | |
| 2546 int | |
|
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|
2547 ml_append_buf( |
|
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|
2548 buf_T *buf, |
|
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|
2549 linenr_T lnum, /* append after this line (can be 0) */ |
|
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|
2550 char_u *line, /* text of the new line */ |
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|
2551 colnr_T len, /* length of new line, including NUL, or 0 */ |
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diff
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|
2552 int newfile) /* flag, see above */ |
| 625 | 2553 { |
| 2554 if (buf->b_ml.ml_mfp == NULL) | |
| 2555 return FAIL; | |
| 2556 | |
| 2557 if (buf->b_ml.ml_line_lnum != 0) | |
| 2558 ml_flush_line(buf); | |
| 2559 return ml_append_int(buf, lnum, line, len, newfile, FALSE); | |
| 2560 } | |
| 2561 #endif | |
| 2562 | |
| 7 | 2563 static int |
|
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2564 ml_append_int( |
|
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|
2565 buf_T *buf, |
|
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|
2566 linenr_T lnum, /* append after this line (can be 0) */ |
|
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|
2567 char_u *line, /* text of the new line */ |
|
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|
2568 colnr_T len, /* length of line, including NUL, or 0 */ |
|
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diff
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|
2569 int newfile, /* flag, see above */ |
|
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|
2570 int mark) /* mark the new line */ |
| 7 | 2571 { |
| 2572 int i; | |
| 2573 int line_count; /* number of indexes in current block */ | |
| 2574 int offset; | |
| 2575 int from, to; | |
| 2576 int space_needed; /* space needed for new line */ | |
| 2577 int page_size; | |
| 2578 int page_count; | |
| 2579 int db_idx; /* index for lnum in data block */ | |
| 2580 bhdr_T *hp; | |
| 2581 memfile_T *mfp; | |
| 2582 DATA_BL *dp; | |
| 2583 PTR_BL *pp; | |
| 2584 infoptr_T *ip; | |
| 2585 | |
| 2586 /* lnum out of range */ | |
| 2587 if (lnum > buf->b_ml.ml_line_count || buf->b_ml.ml_mfp == NULL) | |
| 2588 return FAIL; | |
| 2589 | |
| 2590 if (lowest_marked && lowest_marked > lnum) | |
| 2591 lowest_marked = lnum + 1; | |
| 2592 | |
| 2593 if (len == 0) | |
| 2594 len = (colnr_T)STRLEN(line) + 1; /* space needed for the text */ | |
| 2595 space_needed = len + INDEX_SIZE; /* space needed for text + index */ | |
| 2596 | |
| 2597 mfp = buf->b_ml.ml_mfp; | |
| 2598 page_size = mfp->mf_page_size; | |
| 2599 | |
| 2600 /* | |
| 2601 * find the data block containing the previous line | |
| 2602 * This also fills the stack with the blocks from the root to the data block | |
| 2603 * This also releases any locked block. | |
| 2604 */ | |
| 2605 if ((hp = ml_find_line(buf, lnum == 0 ? (linenr_T)1 : lnum, | |
| 2606 ML_INSERT)) == NULL) | |
| 2607 return FAIL; | |
| 2608 | |
| 2609 buf->b_ml.ml_flags &= ~ML_EMPTY; | |
| 2610 | |
| 2611 if (lnum == 0) /* got line one instead, correct db_idx */ | |
| 2612 db_idx = -1; /* careful, it is negative! */ | |
| 2613 else | |
| 2614 db_idx = lnum - buf->b_ml.ml_locked_low; | |
| 2615 /* get line count before the insertion */ | |
| 2616 line_count = buf->b_ml.ml_locked_high - buf->b_ml.ml_locked_low; | |
| 2617 | |
| 2618 dp = (DATA_BL *)(hp->bh_data); | |
| 2619 | |
| 2620 /* | |
| 2621 * If | |
| 2622 * - there is not enough room in the current block | |
| 2623 * - appending to the last line in the block | |
| 2624 * - not appending to the last line in the file | |
| 2625 * insert in front of the next block. | |
| 2626 */ | |
| 2627 if ((int)dp->db_free < space_needed && db_idx == line_count - 1 | |
| 2628 && lnum < buf->b_ml.ml_line_count) | |
| 2629 { | |
| 2630 /* | |
| 2631 * Now that the line is not going to be inserted in the block that we | |
| 2632 * expected, the line count has to be adjusted in the pointer blocks | |
| 2633 * by using ml_locked_lineadd. | |
| 2634 */ | |
| 2635 --(buf->b_ml.ml_locked_lineadd); | |
| 2636 --(buf->b_ml.ml_locked_high); | |
| 2637 if ((hp = ml_find_line(buf, lnum + 1, ML_INSERT)) == NULL) | |
| 2638 return FAIL; | |
| 2639 | |
| 2640 db_idx = -1; /* careful, it is negative! */ | |
| 2641 /* get line count before the insertion */ | |
| 2642 line_count = buf->b_ml.ml_locked_high - buf->b_ml.ml_locked_low; | |
| 2643 CHECK(buf->b_ml.ml_locked_low != lnum + 1, "locked_low != lnum + 1"); | |
| 2644 | |
| 2645 dp = (DATA_BL *)(hp->bh_data); | |
| 2646 } | |
| 2647 | |
| 2648 ++buf->b_ml.ml_line_count; | |
| 2649 | |
| 2650 if ((int)dp->db_free >= space_needed) /* enough room in data block */ | |
| 2651 { | |
| 2652 /* | |
| 2653 * Insert new line in existing data block, or in data block allocated above. | |
| 2654 */ | |
| 2655 dp->db_txt_start -= len; | |
| 2656 dp->db_free -= space_needed; | |
| 2657 ++(dp->db_line_count); | |
| 2658 | |
| 2659 /* | |
| 2660 * move the text of the lines that follow to the front | |
| 2661 * adjust the indexes of the lines that follow | |
| 2662 */ | |
| 2663 if (line_count > db_idx + 1) /* if there are following lines */ | |
| 2664 { | |
| 2665 /* | |
| 2666 * Offset is the start of the previous line. | |
| 2667 * This will become the character just after the new line. | |
| 2668 */ | |
| 2669 if (db_idx < 0) | |
| 2670 offset = dp->db_txt_end; | |
| 2671 else | |
| 2672 offset = ((dp->db_index[db_idx]) & DB_INDEX_MASK); | |
| 2673 mch_memmove((char *)dp + dp->db_txt_start, | |
| 2674 (char *)dp + dp->db_txt_start + len, | |
| 2675 (size_t)(offset - (dp->db_txt_start + len))); | |
| 2676 for (i = line_count - 1; i > db_idx; --i) | |
| 2677 dp->db_index[i + 1] = dp->db_index[i] - len; | |
| 2678 dp->db_index[db_idx + 1] = offset - len; | |
| 2679 } | |
| 2680 else /* add line at the end */ | |
| 2681 dp->db_index[db_idx + 1] = dp->db_txt_start; | |
| 2682 | |
| 2683 /* | |
| 2684 * copy the text into the block | |
| 2685 */ | |
| 2686 mch_memmove((char *)dp + dp->db_index[db_idx + 1], line, (size_t)len); | |
| 2687 if (mark) | |
| 2688 dp->db_index[db_idx + 1] |= DB_MARKED; | |
| 2689 | |
| 2690 /* | |
| 2691 * Mark the block dirty. | |
| 2692 */ | |
| 2693 buf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 2694 if (!newfile) | |
| 2695 buf->b_ml.ml_flags |= ML_LOCKED_POS; | |
| 2696 } | |
| 2697 else /* not enough space in data block */ | |
| 2698 { | |
| 2699 /* | |
| 2700 * If there is not enough room we have to create a new data block and copy some | |
| 2701 * lines into it. | |
| 2702 * Then we have to insert an entry in the pointer block. | |
| 2703 * If this pointer block also is full, we go up another block, and so on, up | |
| 2704 * to the root if necessary. | |
| 2705 * The line counts in the pointer blocks have already been adjusted by | |
| 2706 * ml_find_line(). | |
| 2707 */ | |
| 2708 long line_count_left, line_count_right; | |
| 2709 int page_count_left, page_count_right; | |
| 2710 bhdr_T *hp_left; | |
| 2711 bhdr_T *hp_right; | |
| 2712 bhdr_T *hp_new; | |
| 2713 int lines_moved; | |
| 2714 int data_moved = 0; /* init to shut up gcc */ | |
| 2715 int total_moved = 0; /* init to shut up gcc */ | |
| 2716 DATA_BL *dp_right, *dp_left; | |
| 2717 int stack_idx; | |
| 2718 int in_left; | |
| 2719 int lineadd; | |
| 2720 blocknr_T bnum_left, bnum_right; | |
| 2721 linenr_T lnum_left, lnum_right; | |
| 2722 int pb_idx; | |
| 2723 PTR_BL *pp_new; | |
| 2724 | |
| 2725 /* | |
| 2726 * We are going to allocate a new data block. Depending on the | |
| 2727 * situation it will be put to the left or right of the existing | |
| 2728 * block. If possible we put the new line in the left block and move | |
| 2729 * the lines after it to the right block. Otherwise the new line is | |
| 2730 * also put in the right block. This method is more efficient when | |
| 2731 * inserting a lot of lines at one place. | |
| 2732 */ | |
| 2733 if (db_idx < 0) /* left block is new, right block is existing */ | |
| 2734 { | |
| 2735 lines_moved = 0; | |
| 2736 in_left = TRUE; | |
| 2737 /* space_needed does not change */ | |
| 2738 } | |
| 2739 else /* left block is existing, right block is new */ | |
| 2740 { | |
| 2741 lines_moved = line_count - db_idx - 1; | |
| 2742 if (lines_moved == 0) | |
| 2743 in_left = FALSE; /* put new line in right block */ | |
| 2744 /* space_needed does not change */ | |
| 2745 else | |
| 2746 { | |
| 2747 data_moved = ((dp->db_index[db_idx]) & DB_INDEX_MASK) - | |
| 2748 dp->db_txt_start; | |
| 2749 total_moved = data_moved + lines_moved * INDEX_SIZE; | |
| 2750 if ((int)dp->db_free + total_moved >= space_needed) | |
| 2751 { | |
| 2752 in_left = TRUE; /* put new line in left block */ | |
| 2753 space_needed = total_moved; | |
| 2754 } | |
| 2755 else | |
| 2756 { | |
| 2757 in_left = FALSE; /* put new line in right block */ | |
| 2758 space_needed += total_moved; | |
| 2759 } | |
| 2760 } | |
| 2761 } | |
| 2762 | |
| 2763 page_count = ((space_needed + HEADER_SIZE) + page_size - 1) / page_size; | |
| 2764 if ((hp_new = ml_new_data(mfp, newfile, page_count)) == NULL) | |
| 2765 { | |
| 2766 /* correct line counts in pointer blocks */ | |
| 2767 --(buf->b_ml.ml_locked_lineadd); | |
| 2768 --(buf->b_ml.ml_locked_high); | |
| 2769 return FAIL; | |
| 2770 } | |
| 2771 if (db_idx < 0) /* left block is new */ | |
| 2772 { | |
| 2773 hp_left = hp_new; | |
| 2774 hp_right = hp; | |
| 2775 line_count_left = 0; | |
| 2776 line_count_right = line_count; | |
| 2777 } | |
| 2778 else /* right block is new */ | |
| 2779 { | |
| 2780 hp_left = hp; | |
| 2781 hp_right = hp_new; | |
| 2782 line_count_left = line_count; | |
| 2783 line_count_right = 0; | |
| 2784 } | |
| 2785 dp_right = (DATA_BL *)(hp_right->bh_data); | |
| 2786 dp_left = (DATA_BL *)(hp_left->bh_data); | |
| 2787 bnum_left = hp_left->bh_bnum; | |
| 2788 bnum_right = hp_right->bh_bnum; | |
| 2789 page_count_left = hp_left->bh_page_count; | |
| 2790 page_count_right = hp_right->bh_page_count; | |
| 2791 | |
| 2792 /* | |
| 2793 * May move the new line into the right/new block. | |
| 2794 */ | |
| 2795 if (!in_left) | |
| 2796 { | |
| 2797 dp_right->db_txt_start -= len; | |
| 2798 dp_right->db_free -= len + INDEX_SIZE; | |
| 2799 dp_right->db_index[0] = dp_right->db_txt_start; | |
| 2800 if (mark) | |
| 2801 dp_right->db_index[0] |= DB_MARKED; | |
| 2802 | |
| 2803 mch_memmove((char *)dp_right + dp_right->db_txt_start, | |
| 2804 line, (size_t)len); | |
| 2805 ++line_count_right; | |
| 2806 } | |
| 2807 /* | |
| 2808 * may move lines from the left/old block to the right/new one. | |
| 2809 */ | |
| 2810 if (lines_moved) | |
| 2811 { | |
| 2812 /* | |
| 2813 */ | |
| 2814 dp_right->db_txt_start -= data_moved; | |
| 2815 dp_right->db_free -= total_moved; | |
| 2816 mch_memmove((char *)dp_right + dp_right->db_txt_start, | |
| 2817 (char *)dp_left + dp_left->db_txt_start, | |
| 2818 (size_t)data_moved); | |
| 2819 offset = dp_right->db_txt_start - dp_left->db_txt_start; | |
| 2820 dp_left->db_txt_start += data_moved; | |
| 2821 dp_left->db_free += total_moved; | |
| 2822 | |
| 2823 /* | |
| 2824 * update indexes in the new block | |
| 2825 */ | |
| 2826 for (to = line_count_right, from = db_idx + 1; | |
| 2827 from < line_count_left; ++from, ++to) | |
| 2828 dp_right->db_index[to] = dp->db_index[from] + offset; | |
| 2829 line_count_right += lines_moved; | |
| 2830 line_count_left -= lines_moved; | |
| 2831 } | |
| 2832 | |
| 2833 /* | |
| 2834 * May move the new line into the left (old or new) block. | |
| 2835 */ | |
| 2836 if (in_left) | |
| 2837 { | |
| 2838 dp_left->db_txt_start -= len; | |
| 2839 dp_left->db_free -= len + INDEX_SIZE; | |
| 2840 dp_left->db_index[line_count_left] = dp_left->db_txt_start; | |
| 2841 if (mark) | |
| 2842 dp_left->db_index[line_count_left] |= DB_MARKED; | |
| 2843 mch_memmove((char *)dp_left + dp_left->db_txt_start, | |
| 2844 line, (size_t)len); | |
| 2845 ++line_count_left; | |
| 2846 } | |
| 2847 | |
| 2848 if (db_idx < 0) /* left block is new */ | |
| 2849 { | |
| 2850 lnum_left = lnum + 1; | |
| 2851 lnum_right = 0; | |
| 2852 } | |
| 2853 else /* right block is new */ | |
| 2854 { | |
| 2855 lnum_left = 0; | |
| 2856 if (in_left) | |
| 2857 lnum_right = lnum + 2; | |
| 2858 else | |
| 2859 lnum_right = lnum + 1; | |
| 2860 } | |
| 2861 dp_left->db_line_count = line_count_left; | |
| 2862 dp_right->db_line_count = line_count_right; | |
| 2863 | |
| 2864 /* | |
| 2865 * release the two data blocks | |
| 2866 * The new one (hp_new) already has a correct blocknumber. | |
| 2867 * The old one (hp, in ml_locked) gets a positive blocknumber if | |
| 2868 * we changed it and we are not editing a new file. | |
| 2869 */ | |
| 2870 if (lines_moved || in_left) | |
| 2871 buf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 2872 if (!newfile && db_idx >= 0 && in_left) | |
| 2873 buf->b_ml.ml_flags |= ML_LOCKED_POS; | |
| 2874 mf_put(mfp, hp_new, TRUE, FALSE); | |
| 2875 | |
| 2876 /* | |
| 2877 * flush the old data block | |
| 2878 * set ml_locked_lineadd to 0, because the updating of the | |
| 2879 * pointer blocks is done below | |
| 2880 */ | |
| 2881 lineadd = buf->b_ml.ml_locked_lineadd; | |
| 2882 buf->b_ml.ml_locked_lineadd = 0; | |
| 2883 ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush data block */ | |
| 2884 | |
| 2885 /* | |
| 2886 * update pointer blocks for the new data block | |
| 2887 */ | |
| 2888 for (stack_idx = buf->b_ml.ml_stack_top - 1; stack_idx >= 0; | |
| 2889 --stack_idx) | |
| 2890 { | |
| 2891 ip = &(buf->b_ml.ml_stack[stack_idx]); | |
| 2892 pb_idx = ip->ip_index; | |
| 2893 if ((hp = mf_get(mfp, ip->ip_bnum, 1)) == NULL) | |
| 2894 return FAIL; | |
| 2895 pp = (PTR_BL *)(hp->bh_data); /* must be pointer block */ | |
| 2896 if (pp->pb_id != PTR_ID) | |
| 2897 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2898 IEMSG(_("E317: pointer block id wrong 3")); |
| 7 | 2899 mf_put(mfp, hp, FALSE, FALSE); |
| 2900 return FAIL; | |
| 2901 } | |
| 2902 /* | |
| 2903 * TODO: If the pointer block is full and we are adding at the end | |
| 2904 * try to insert in front of the next block | |
| 2905 */ | |
| 2906 /* block not full, add one entry */ | |
| 2907 if (pp->pb_count < pp->pb_count_max) | |
| 2908 { | |
| 2909 if (pb_idx + 1 < (int)pp->pb_count) | |
| 2910 mch_memmove(&pp->pb_pointer[pb_idx + 2], | |
| 2911 &pp->pb_pointer[pb_idx + 1], | |
| 2912 (size_t)(pp->pb_count - pb_idx - 1) * sizeof(PTR_EN)); | |
| 2913 ++pp->pb_count; | |
| 2914 pp->pb_pointer[pb_idx].pe_line_count = line_count_left; | |
| 2915 pp->pb_pointer[pb_idx].pe_bnum = bnum_left; | |
| 2916 pp->pb_pointer[pb_idx].pe_page_count = page_count_left; | |
| 2917 pp->pb_pointer[pb_idx + 1].pe_line_count = line_count_right; | |
| 2918 pp->pb_pointer[pb_idx + 1].pe_bnum = bnum_right; | |
| 2919 pp->pb_pointer[pb_idx + 1].pe_page_count = page_count_right; | |
| 2920 | |
| 2921 if (lnum_left != 0) | |
| 2922 pp->pb_pointer[pb_idx].pe_old_lnum = lnum_left; | |
| 2923 if (lnum_right != 0) | |
| 2924 pp->pb_pointer[pb_idx + 1].pe_old_lnum = lnum_right; | |
| 2925 | |
| 2926 mf_put(mfp, hp, TRUE, FALSE); | |
| 2927 buf->b_ml.ml_stack_top = stack_idx + 1; /* truncate stack */ | |
| 2928 | |
| 2929 if (lineadd) | |
| 2930 { | |
| 2931 --(buf->b_ml.ml_stack_top); | |
| 1167 | 2932 /* fix line count for rest of blocks in the stack */ |
| 7 | 2933 ml_lineadd(buf, lineadd); |
| 2934 /* fix stack itself */ | |
| 2935 buf->b_ml.ml_stack[buf->b_ml.ml_stack_top].ip_high += | |
| 2936 lineadd; | |
| 2937 ++(buf->b_ml.ml_stack_top); | |
| 2938 } | |
| 2939 | |
| 2940 /* | |
| 2941 * We are finished, break the loop here. | |
| 2942 */ | |
| 2943 break; | |
| 2944 } | |
| 2945 else /* pointer block full */ | |
| 2946 { | |
| 2947 /* | |
| 2948 * split the pointer block | |
| 2949 * allocate a new pointer block | |
| 2950 * move some of the pointer into the new block | |
| 2951 * prepare for updating the parent block | |
| 2952 */ | |
| 2953 for (;;) /* do this twice when splitting block 1 */ | |
| 2954 { | |
| 2955 hp_new = ml_new_ptr(mfp); | |
| 2956 if (hp_new == NULL) /* TODO: try to fix tree */ | |
| 2957 return FAIL; | |
| 2958 pp_new = (PTR_BL *)(hp_new->bh_data); | |
| 2959 | |
| 2960 if (hp->bh_bnum != 1) | |
| 2961 break; | |
| 2962 | |
| 2963 /* | |
| 2964 * if block 1 becomes full the tree is given an extra level | |
| 2965 * The pointers from block 1 are moved into the new block. | |
| 2966 * block 1 is updated to point to the new block | |
| 2967 * then continue to split the new block | |
| 2968 */ | |
| 2969 mch_memmove(pp_new, pp, (size_t)page_size); | |
| 2970 pp->pb_count = 1; | |
| 2971 pp->pb_pointer[0].pe_bnum = hp_new->bh_bnum; | |
| 2972 pp->pb_pointer[0].pe_line_count = buf->b_ml.ml_line_count; | |
| 2973 pp->pb_pointer[0].pe_old_lnum = 1; | |
| 2974 pp->pb_pointer[0].pe_page_count = 1; | |
| 2975 mf_put(mfp, hp, TRUE, FALSE); /* release block 1 */ | |
| 2976 hp = hp_new; /* new block is to be split */ | |
| 2977 pp = pp_new; | |
| 2978 CHECK(stack_idx != 0, _("stack_idx should be 0")); | |
| 2979 ip->ip_index = 0; | |
| 2980 ++stack_idx; /* do block 1 again later */ | |
| 2981 } | |
| 2982 /* | |
| 2983 * move the pointers after the current one to the new block | |
| 2984 * If there are none, the new entry will be in the new block. | |
| 2985 */ | |
| 2986 total_moved = pp->pb_count - pb_idx - 1; | |
| 2987 if (total_moved) | |
| 2988 { | |
| 2989 mch_memmove(&pp_new->pb_pointer[0], | |
| 2990 &pp->pb_pointer[pb_idx + 1], | |
| 2991 (size_t)(total_moved) * sizeof(PTR_EN)); | |
| 2992 pp_new->pb_count = total_moved; | |
| 2993 pp->pb_count -= total_moved - 1; | |
| 2994 pp->pb_pointer[pb_idx + 1].pe_bnum = bnum_right; | |
| 2995 pp->pb_pointer[pb_idx + 1].pe_line_count = line_count_right; | |
| 2996 pp->pb_pointer[pb_idx + 1].pe_page_count = page_count_right; | |
| 2997 if (lnum_right) | |
| 2998 pp->pb_pointer[pb_idx + 1].pe_old_lnum = lnum_right; | |
| 2999 } | |
| 3000 else | |
| 3001 { | |
| 3002 pp_new->pb_count = 1; | |
| 3003 pp_new->pb_pointer[0].pe_bnum = bnum_right; | |
| 3004 pp_new->pb_pointer[0].pe_line_count = line_count_right; | |
| 3005 pp_new->pb_pointer[0].pe_page_count = page_count_right; | |
| 3006 pp_new->pb_pointer[0].pe_old_lnum = lnum_right; | |
| 3007 } | |
| 3008 pp->pb_pointer[pb_idx].pe_bnum = bnum_left; | |
| 3009 pp->pb_pointer[pb_idx].pe_line_count = line_count_left; | |
| 3010 pp->pb_pointer[pb_idx].pe_page_count = page_count_left; | |
| 3011 if (lnum_left) | |
| 3012 pp->pb_pointer[pb_idx].pe_old_lnum = lnum_left; | |
| 3013 lnum_left = 0; | |
| 3014 lnum_right = 0; | |
| 3015 | |
| 3016 /* | |
| 3017 * recompute line counts | |
| 3018 */ | |
| 3019 line_count_right = 0; | |
| 3020 for (i = 0; i < (int)pp_new->pb_count; ++i) | |
| 3021 line_count_right += pp_new->pb_pointer[i].pe_line_count; | |
| 3022 line_count_left = 0; | |
| 3023 for (i = 0; i < (int)pp->pb_count; ++i) | |
| 3024 line_count_left += pp->pb_pointer[i].pe_line_count; | |
| 3025 | |
| 3026 bnum_left = hp->bh_bnum; | |
| 3027 bnum_right = hp_new->bh_bnum; | |
| 3028 page_count_left = 1; | |
| 3029 page_count_right = 1; | |
| 3030 mf_put(mfp, hp, TRUE, FALSE); | |
| 3031 mf_put(mfp, hp_new, TRUE, FALSE); | |
| 3032 } | |
| 3033 } | |
| 3034 | |
| 3035 /* | |
| 3036 * Safety check: fallen out of for loop? | |
| 3037 */ | |
| 3038 if (stack_idx < 0) | |
| 3039 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3040 IEMSG(_("E318: Updated too many blocks?")); |
| 7 | 3041 buf->b_ml.ml_stack_top = 0; /* invalidate stack */ |
| 3042 } | |
| 3043 } | |
| 3044 | |
| 3045 #ifdef FEAT_BYTEOFF | |
| 3046 /* The line was inserted below 'lnum' */ | |
| 3047 ml_updatechunk(buf, lnum + 1, (long)len, ML_CHNK_ADDLINE); | |
| 3048 #endif | |
| 3049 #ifdef FEAT_NETBEANS_INTG | |
| 2210 | 3050 if (netbeans_active()) |
| 7 | 3051 { |
| 3052 if (STRLEN(line) > 0) | |
| 835 | 3053 netbeans_inserted(buf, lnum+1, (colnr_T)0, line, (int)STRLEN(line)); |
| 34 | 3054 netbeans_inserted(buf, lnum+1, (colnr_T)STRLEN(line), |
| 7 | 3055 (char_u *)"\n", 1); |
| 3056 } | |
| 3057 #endif | |
|
8493
caed4b2d305f
commit https://github.com/vim/vim/commit/509ce2a558e7e0c03242e32e844255af52f1c821
Christian Brabandt <cb@256bit.org>
parents:
8422
diff
changeset
|
3058 #ifdef FEAT_JOB_CHANNEL |
|
8422
5d2c84be23b5
commit https://github.com/vim/vim/commit/99ef06296f3c37490511c03786a2c8672e015c56
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3059 if (buf->b_write_to_channel) |
|
5d2c84be23b5
commit https://github.com/vim/vim/commit/99ef06296f3c37490511c03786a2c8672e015c56
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3060 channel_write_new_lines(buf); |
|
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parents:
8212
diff
changeset
|
3061 #endif |
|
5d2c84be23b5
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Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3062 |
| 7 | 3063 return OK; |
| 3064 } | |
| 3065 | |
| 3066 /* | |
| 625 | 3067 * Replace line lnum, with buffering, in current buffer. |
| 7 | 3068 * |
| 720 | 3069 * If "copy" is TRUE, make a copy of the line, otherwise the line has been |
| 7 | 3070 * copied to allocated memory already. |
| 3071 * | |
| 3072 * Check: The caller of this function should probably also call | |
| 3073 * changed_lines(), unless update_screen(NOT_VALID) is used. | |
| 3074 * | |
| 3075 * return FAIL for failure, OK otherwise | |
| 3076 */ | |
| 3077 int | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3078 ml_replace(linenr_T lnum, char_u *line, int copy) |
| 7 | 3079 { |
| 3080 if (line == NULL) /* just checking... */ | |
| 3081 return FAIL; | |
| 3082 | |
| 3083 /* When starting up, we might still need to create the memfile */ | |
|
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Bram Moolenaar <bram@vim.org>
parents:
2360
diff
changeset
|
3084 if (curbuf->b_ml.ml_mfp == NULL && open_buffer(FALSE, NULL, 0) == FAIL) |
| 7 | 3085 return FAIL; |
| 3086 | |
| 3087 if (copy && (line = vim_strsave(line)) == NULL) /* allocate memory */ | |
| 3088 return FAIL; | |
| 3089 #ifdef FEAT_NETBEANS_INTG | |
| 2210 | 3090 if (netbeans_active()) |
| 7 | 3091 { |
| 3092 netbeans_removed(curbuf, lnum, 0, (long)STRLEN(ml_get(lnum))); | |
| 835 | 3093 netbeans_inserted(curbuf, lnum, 0, line, (int)STRLEN(line)); |
| 7 | 3094 } |
| 3095 #endif | |
| 3096 if (curbuf->b_ml.ml_line_lnum != lnum) /* other line buffered */ | |
| 3097 ml_flush_line(curbuf); /* flush it */ | |
| 3098 else if (curbuf->b_ml.ml_flags & ML_LINE_DIRTY) /* same line allocated */ | |
| 3099 vim_free(curbuf->b_ml.ml_line_ptr); /* free it */ | |
| 3100 curbuf->b_ml.ml_line_ptr = line; | |
| 3101 curbuf->b_ml.ml_line_lnum = lnum; | |
| 3102 curbuf->b_ml.ml_flags = (curbuf->b_ml.ml_flags | ML_LINE_DIRTY) & ~ML_EMPTY; | |
| 3103 | |
| 3104 return OK; | |
| 3105 } | |
| 3106 | |
| 3107 /* | |
|
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diff
changeset
|
3108 * Delete line "lnum" in the current buffer. |
|
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parents:
11158
diff
changeset
|
3109 * When "message" is TRUE may give a "No lines in buffer" message. |
| 7 | 3110 * |
| 3111 * Check: The caller of this function should probably also call | |
| 3112 * deleted_lines() after this. | |
| 3113 * | |
| 3114 * return FAIL for failure, OK otherwise | |
| 3115 */ | |
| 3116 int | |
|
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parents:
7803
diff
changeset
|
3117 ml_delete(linenr_T lnum, int message) |
| 7 | 3118 { |
| 3119 ml_flush_line(curbuf); | |
| 3120 return ml_delete_int(curbuf, lnum, message); | |
| 3121 } | |
| 3122 | |
| 3123 static int | |
|
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parents:
7803
diff
changeset
|
3124 ml_delete_int(buf_T *buf, linenr_T lnum, int message) |
| 7 | 3125 { |
| 3126 bhdr_T *hp; | |
| 3127 memfile_T *mfp; | |
| 3128 DATA_BL *dp; | |
| 3129 PTR_BL *pp; | |
| 3130 infoptr_T *ip; | |
| 3131 int count; /* number of entries in block */ | |
| 3132 int idx; | |
| 3133 int stack_idx; | |
| 3134 int text_start; | |
| 3135 int line_start; | |
| 3136 long line_size; | |
| 3137 int i; | |
| 3138 | |
| 3139 if (lnum < 1 || lnum > buf->b_ml.ml_line_count) | |
| 3140 return FAIL; | |
| 3141 | |
| 3142 if (lowest_marked && lowest_marked > lnum) | |
| 3143 lowest_marked--; | |
| 3144 | |
| 3145 /* | |
| 3146 * If the file becomes empty the last line is replaced by an empty line. | |
| 3147 */ | |
| 3148 if (buf->b_ml.ml_line_count == 1) /* file becomes empty */ | |
| 3149 { | |
| 3150 if (message | |
| 3151 #ifdef FEAT_NETBEANS_INTG | |
| 3152 && !netbeansSuppressNoLines | |
| 3153 #endif | |
| 3154 ) | |
| 680 | 3155 set_keep_msg((char_u *)_(no_lines_msg), 0); |
| 3156 | |
| 4352 | 3157 /* FEAT_BYTEOFF already handled in there, don't worry 'bout it below */ |
| 7 | 3158 i = ml_replace((linenr_T)1, (char_u *)"", TRUE); |
| 3159 buf->b_ml.ml_flags |= ML_EMPTY; | |
| 3160 | |
| 3161 return i; | |
| 3162 } | |
| 3163 | |
| 3164 /* | |
| 3165 * find the data block containing the line | |
| 3166 * This also fills the stack with the blocks from the root to the data block | |
| 3167 * This also releases any locked block. | |
| 3168 */ | |
| 3169 mfp = buf->b_ml.ml_mfp; | |
| 3170 if (mfp == NULL) | |
| 3171 return FAIL; | |
| 3172 | |
| 3173 if ((hp = ml_find_line(buf, lnum, ML_DELETE)) == NULL) | |
| 3174 return FAIL; | |
| 3175 | |
| 3176 dp = (DATA_BL *)(hp->bh_data); | |
| 3177 /* compute line count before the delete */ | |
| 3178 count = (long)(buf->b_ml.ml_locked_high) | |
| 3179 - (long)(buf->b_ml.ml_locked_low) + 2; | |
| 3180 idx = lnum - buf->b_ml.ml_locked_low; | |
| 3181 | |
| 3182 --buf->b_ml.ml_line_count; | |
| 3183 | |
| 3184 line_start = ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 3185 if (idx == 0) /* first line in block, text at the end */ | |
| 3186 line_size = dp->db_txt_end - line_start; | |
| 3187 else | |
| 3188 line_size = ((dp->db_index[idx - 1]) & DB_INDEX_MASK) - line_start; | |
| 3189 | |
| 3190 #ifdef FEAT_NETBEANS_INTG | |
| 2210 | 3191 if (netbeans_active()) |
| 34 | 3192 netbeans_removed(buf, lnum, 0, (long)line_size); |
| 7 | 3193 #endif |
| 3194 | |
| 3195 /* | |
| 3196 * special case: If there is only one line in the data block it becomes empty. | |
| 3197 * Then we have to remove the entry, pointing to this data block, from the | |
| 3198 * pointer block. If this pointer block also becomes empty, we go up another | |
| 3199 * block, and so on, up to the root if necessary. | |
| 3200 * The line counts in the pointer blocks have already been adjusted by | |
| 3201 * ml_find_line(). | |
| 3202 */ | |
| 3203 if (count == 1) | |
| 3204 { | |
| 3205 mf_free(mfp, hp); /* free the data block */ | |
| 3206 buf->b_ml.ml_locked = NULL; | |
| 3207 | |
| 2823 | 3208 for (stack_idx = buf->b_ml.ml_stack_top - 1; stack_idx >= 0; |
| 3209 --stack_idx) | |
| 7 | 3210 { |
| 3211 buf->b_ml.ml_stack_top = 0; /* stack is invalid when failing */ | |
| 3212 ip = &(buf->b_ml.ml_stack[stack_idx]); | |
| 3213 idx = ip->ip_index; | |
| 3214 if ((hp = mf_get(mfp, ip->ip_bnum, 1)) == NULL) | |
| 3215 return FAIL; | |
| 3216 pp = (PTR_BL *)(hp->bh_data); /* must be pointer block */ | |
| 3217 if (pp->pb_id != PTR_ID) | |
| 3218 { | |
|
10359
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Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3219 IEMSG(_("E317: pointer block id wrong 4")); |
| 7 | 3220 mf_put(mfp, hp, FALSE, FALSE); |
| 3221 return FAIL; | |
| 3222 } | |
| 3223 count = --(pp->pb_count); | |
| 3224 if (count == 0) /* the pointer block becomes empty! */ | |
| 3225 mf_free(mfp, hp); | |
| 3226 else | |
| 3227 { | |
| 3228 if (count != idx) /* move entries after the deleted one */ | |
| 3229 mch_memmove(&pp->pb_pointer[idx], &pp->pb_pointer[idx + 1], | |
| 3230 (size_t)(count - idx) * sizeof(PTR_EN)); | |
| 3231 mf_put(mfp, hp, TRUE, FALSE); | |
| 3232 | |
| 3233 buf->b_ml.ml_stack_top = stack_idx; /* truncate stack */ | |
| 1167 | 3234 /* fix line count for rest of blocks in the stack */ |
| 3235 if (buf->b_ml.ml_locked_lineadd != 0) | |
| 7 | 3236 { |
| 3237 ml_lineadd(buf, buf->b_ml.ml_locked_lineadd); | |
| 3238 buf->b_ml.ml_stack[buf->b_ml.ml_stack_top].ip_high += | |
| 1167 | 3239 buf->b_ml.ml_locked_lineadd; |
| 7 | 3240 } |
| 3241 ++(buf->b_ml.ml_stack_top); | |
| 3242 | |
| 3243 break; | |
| 3244 } | |
| 3245 } | |
| 3246 CHECK(stack_idx < 0, _("deleted block 1?")); | |
| 3247 } | |
| 3248 else | |
| 3249 { | |
| 3250 /* | |
| 3251 * delete the text by moving the next lines forwards | |
| 3252 */ | |
| 3253 text_start = dp->db_txt_start; | |
| 3254 mch_memmove((char *)dp + text_start + line_size, | |
| 3255 (char *)dp + text_start, (size_t)(line_start - text_start)); | |
| 3256 | |
| 3257 /* | |
| 3258 * delete the index by moving the next indexes backwards | |
| 3259 * Adjust the indexes for the text movement. | |
| 3260 */ | |
| 3261 for (i = idx; i < count - 1; ++i) | |
| 3262 dp->db_index[i] = dp->db_index[i + 1] + line_size; | |
| 3263 | |
| 3264 dp->db_free += line_size + INDEX_SIZE; | |
| 3265 dp->db_txt_start += line_size; | |
| 3266 --(dp->db_line_count); | |
| 3267 | |
| 3268 /* | |
| 3269 * mark the block dirty and make sure it is in the file (for recovery) | |
| 3270 */ | |
| 3271 buf->b_ml.ml_flags |= (ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 3272 } | |
| 3273 | |
| 3274 #ifdef FEAT_BYTEOFF | |
| 3275 ml_updatechunk(buf, lnum, line_size, ML_CHNK_DELLINE); | |
| 3276 #endif | |
| 3277 return OK; | |
| 3278 } | |
| 3279 | |
| 3280 /* | |
| 3281 * set the B_MARKED flag for line 'lnum' | |
| 3282 */ | |
| 3283 void | |
|
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parents:
7803
diff
changeset
|
3284 ml_setmarked(linenr_T lnum) |
| 7 | 3285 { |
| 3286 bhdr_T *hp; | |
| 3287 DATA_BL *dp; | |
| 3288 /* invalid line number */ | |
| 3289 if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count | |
| 3290 || curbuf->b_ml.ml_mfp == NULL) | |
| 3291 return; /* give error message? */ | |
| 3292 | |
| 3293 if (lowest_marked == 0 || lowest_marked > lnum) | |
| 3294 lowest_marked = lnum; | |
| 3295 | |
| 3296 /* | |
| 3297 * find the data block containing the line | |
| 3298 * This also fills the stack with the blocks from the root to the data block | |
| 3299 * This also releases any locked block. | |
| 3300 */ | |
| 3301 if ((hp = ml_find_line(curbuf, lnum, ML_FIND)) == NULL) | |
| 3302 return; /* give error message? */ | |
| 3303 | |
| 3304 dp = (DATA_BL *)(hp->bh_data); | |
| 3305 dp->db_index[lnum - curbuf->b_ml.ml_locked_low] |= DB_MARKED; | |
| 3306 curbuf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 3307 } | |
| 3308 | |
| 3309 /* | |
| 3310 * find the first line with its B_MARKED flag set | |
| 3311 */ | |
| 3312 linenr_T | |
|
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parents:
7803
diff
changeset
|
3313 ml_firstmarked(void) |
| 7 | 3314 { |
| 3315 bhdr_T *hp; | |
| 3316 DATA_BL *dp; | |
| 3317 linenr_T lnum; | |
| 3318 int i; | |
| 3319 | |
| 3320 if (curbuf->b_ml.ml_mfp == NULL) | |
| 3321 return (linenr_T) 0; | |
| 3322 | |
| 3323 /* | |
| 3324 * The search starts with lowest_marked line. This is the last line where | |
| 3325 * a mark was found, adjusted by inserting/deleting lines. | |
| 3326 */ | |
| 3327 for (lnum = lowest_marked; lnum <= curbuf->b_ml.ml_line_count; ) | |
| 3328 { | |
| 3329 /* | |
| 3330 * Find the data block containing the line. | |
| 3331 * This also fills the stack with the blocks from the root to the data | |
| 3332 * block This also releases any locked block. | |
| 3333 */ | |
| 3334 if ((hp = ml_find_line(curbuf, lnum, ML_FIND)) == NULL) | |
| 3335 return (linenr_T)0; /* give error message? */ | |
| 3336 | |
| 3337 dp = (DATA_BL *)(hp->bh_data); | |
| 3338 | |
| 3339 for (i = lnum - curbuf->b_ml.ml_locked_low; | |
| 3340 lnum <= curbuf->b_ml.ml_locked_high; ++i, ++lnum) | |
| 3341 if ((dp->db_index[i]) & DB_MARKED) | |
| 3342 { | |
| 3343 (dp->db_index[i]) &= DB_INDEX_MASK; | |
| 3344 curbuf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 3345 lowest_marked = lnum + 1; | |
| 3346 return lnum; | |
| 3347 } | |
| 3348 } | |
| 3349 | |
| 3350 return (linenr_T) 0; | |
| 3351 } | |
| 3352 | |
| 3353 /* | |
| 3354 * clear all DB_MARKED flags | |
| 3355 */ | |
| 3356 void | |
|
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parents:
7803
diff
changeset
|
3357 ml_clearmarked(void) |
| 7 | 3358 { |
| 3359 bhdr_T *hp; | |
| 3360 DATA_BL *dp; | |
| 3361 linenr_T lnum; | |
| 3362 int i; | |
| 3363 | |
| 3364 if (curbuf->b_ml.ml_mfp == NULL) /* nothing to do */ | |
| 3365 return; | |
| 3366 | |
| 3367 /* | |
| 3368 * The search starts with line lowest_marked. | |
| 3369 */ | |
| 3370 for (lnum = lowest_marked; lnum <= curbuf->b_ml.ml_line_count; ) | |
| 3371 { | |
| 3372 /* | |
| 3373 * Find the data block containing the line. | |
| 3374 * This also fills the stack with the blocks from the root to the data | |
| 3375 * block and releases any locked block. | |
| 3376 */ | |
| 3377 if ((hp = ml_find_line(curbuf, lnum, ML_FIND)) == NULL) | |
| 3378 return; /* give error message? */ | |
| 3379 | |
| 3380 dp = (DATA_BL *)(hp->bh_data); | |
| 3381 | |
| 3382 for (i = lnum - curbuf->b_ml.ml_locked_low; | |
| 3383 lnum <= curbuf->b_ml.ml_locked_high; ++i, ++lnum) | |
| 3384 if ((dp->db_index[i]) & DB_MARKED) | |
| 3385 { | |
| 3386 (dp->db_index[i]) &= DB_INDEX_MASK; | |
| 3387 curbuf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 3388 } | |
| 3389 } | |
| 3390 | |
| 3391 lowest_marked = 0; | |
| 3392 return; | |
| 3393 } | |
| 3394 | |
| 3395 /* | |
| 3396 * flush ml_line if necessary | |
| 3397 */ | |
| 3398 static void | |
|
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parents:
7803
diff
changeset
|
3399 ml_flush_line(buf_T *buf) |
| 7 | 3400 { |
| 3401 bhdr_T *hp; | |
| 3402 DATA_BL *dp; | |
| 3403 linenr_T lnum; | |
| 3404 char_u *new_line; | |
| 3405 char_u *old_line; | |
| 3406 colnr_T new_len; | |
| 3407 int old_len; | |
| 3408 int extra; | |
| 3409 int idx; | |
| 3410 int start; | |
| 3411 int count; | |
| 3412 int i; | |
|
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2003
diff
changeset
|
3413 static int entered = FALSE; |
| 7 | 3414 |
| 3415 if (buf->b_ml.ml_line_lnum == 0 || buf->b_ml.ml_mfp == NULL) | |
| 3416 return; /* nothing to do */ | |
| 3417 | |
| 3418 if (buf->b_ml.ml_flags & ML_LINE_DIRTY) | |
| 3419 { | |
|
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2003
diff
changeset
|
3420 /* This code doesn't work recursively, but Netbeans may call back here |
|
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parents:
2003
diff
changeset
|
3421 * when obtaining the cursor position. */ |
|
903fcd726d90
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parents:
2003
diff
changeset
|
3422 if (entered) |
|
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parents:
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diff
changeset
|
3423 return; |
|
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parents:
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diff
changeset
|
3424 entered = TRUE; |
|
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diff
changeset
|
3425 |
| 7 | 3426 lnum = buf->b_ml.ml_line_lnum; |
| 3427 new_line = buf->b_ml.ml_line_ptr; | |
| 3428 | |
| 3429 hp = ml_find_line(buf, lnum, ML_FIND); | |
| 3430 if (hp == NULL) | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3431 IEMSGN(_("E320: Cannot find line %ld"), lnum); |
| 7 | 3432 else |
| 3433 { | |
| 3434 dp = (DATA_BL *)(hp->bh_data); | |
| 3435 idx = lnum - buf->b_ml.ml_locked_low; | |
| 3436 start = ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 3437 old_line = (char_u *)dp + start; | |
| 3438 if (idx == 0) /* line is last in block */ | |
| 3439 old_len = dp->db_txt_end - start; | |
| 3440 else /* text of previous line follows */ | |
| 3441 old_len = (dp->db_index[idx - 1] & DB_INDEX_MASK) - start; | |
| 3442 new_len = (colnr_T)STRLEN(new_line) + 1; | |
| 3443 extra = new_len - old_len; /* negative if lines gets smaller */ | |
| 3444 | |
| 3445 /* | |
| 3446 * if new line fits in data block, replace directly | |
| 3447 */ | |
| 3448 if ((int)dp->db_free >= extra) | |
| 3449 { | |
| 3450 /* if the length changes and there are following lines */ | |
| 3451 count = buf->b_ml.ml_locked_high - buf->b_ml.ml_locked_low + 1; | |
| 3452 if (extra != 0 && idx < count - 1) | |
| 3453 { | |
| 3454 /* move text of following lines */ | |
| 3455 mch_memmove((char *)dp + dp->db_txt_start - extra, | |
| 3456 (char *)dp + dp->db_txt_start, | |
| 3457 (size_t)(start - dp->db_txt_start)); | |
| 3458 | |
| 3459 /* adjust pointers of this and following lines */ | |
| 3460 for (i = idx + 1; i < count; ++i) | |
| 3461 dp->db_index[i] -= extra; | |
| 3462 } | |
| 3463 dp->db_index[idx] -= extra; | |
| 3464 | |
| 3465 /* adjust free space */ | |
| 3466 dp->db_free -= extra; | |
| 3467 dp->db_txt_start -= extra; | |
| 3468 | |
| 3469 /* copy new line into the data block */ | |
| 3470 mch_memmove(old_line - extra, new_line, (size_t)new_len); | |
| 3471 buf->b_ml.ml_flags |= (ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 3472 #ifdef FEAT_BYTEOFF | |
| 3473 /* The else case is already covered by the insert and delete */ | |
| 3474 ml_updatechunk(buf, lnum, (long)extra, ML_CHNK_UPDLINE); | |
| 3475 #endif | |
| 3476 } | |
| 3477 else | |
| 3478 { | |
| 3479 /* | |
| 3480 * Cannot do it in one data block: Delete and append. | |
| 3481 * Append first, because ml_delete_int() cannot delete the | |
| 3482 * last line in a buffer, which causes trouble for a buffer | |
| 3483 * that has only one line. | |
| 3484 * Don't forget to copy the mark! | |
| 3485 */ | |
| 3486 /* How about handling errors??? */ | |
| 3487 (void)ml_append_int(buf, lnum, new_line, new_len, FALSE, | |
| 3488 (dp->db_index[idx] & DB_MARKED)); | |
| 3489 (void)ml_delete_int(buf, lnum, FALSE); | |
| 3490 } | |
| 3491 } | |
| 3492 vim_free(new_line); | |
|
2075
903fcd726d90
updated for version 7.2.359
Bram Moolenaar <bram@zimbu.org>
parents:
2003
diff
changeset
|
3493 |
|
903fcd726d90
updated for version 7.2.359
Bram Moolenaar <bram@zimbu.org>
parents:
2003
diff
changeset
|
3494 entered = FALSE; |
| 7 | 3495 } |
| 3496 | |
| 3497 buf->b_ml.ml_line_lnum = 0; | |
| 3498 } | |
| 3499 | |
| 3500 /* | |
| 3501 * create a new, empty, data block | |
| 3502 */ | |
| 3503 static bhdr_T * | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3504 ml_new_data(memfile_T *mfp, int negative, int page_count) |
| 7 | 3505 { |
| 3506 bhdr_T *hp; | |
| 3507 DATA_BL *dp; | |
| 3508 | |
| 3509 if ((hp = mf_new(mfp, negative, page_count)) == NULL) | |
| 3510 return NULL; | |
| 3511 | |
| 3512 dp = (DATA_BL *)(hp->bh_data); | |
| 3513 dp->db_id = DATA_ID; | |
| 3514 dp->db_txt_start = dp->db_txt_end = page_count * mfp->mf_page_size; | |
| 3515 dp->db_free = dp->db_txt_start - HEADER_SIZE; | |
| 3516 dp->db_line_count = 0; | |
| 3517 | |
| 3518 return hp; | |
| 3519 } | |
| 3520 | |
| 3521 /* | |
| 3522 * create a new, empty, pointer block | |
| 3523 */ | |
| 3524 static bhdr_T * | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3525 ml_new_ptr(memfile_T *mfp) |
| 7 | 3526 { |
| 3527 bhdr_T *hp; | |
| 3528 PTR_BL *pp; | |
| 3529 | |
| 3530 if ((hp = mf_new(mfp, FALSE, 1)) == NULL) | |
| 3531 return NULL; | |
| 3532 | |
| 3533 pp = (PTR_BL *)(hp->bh_data); | |
| 3534 pp->pb_id = PTR_ID; | |
| 3535 pp->pb_count = 0; | |
|
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6b4879aea261
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Bram Moolenaar <bram@vim.org>
parents:
2221
diff
changeset
|
3536 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
|
3537 / sizeof(PTR_EN) + 1); |
| 7 | 3538 |
| 3539 return hp; | |
| 3540 } | |
| 3541 | |
| 3542 /* | |
| 3543 * lookup line 'lnum' in a memline | |
| 3544 * | |
| 3545 * action: if ML_DELETE or ML_INSERT the line count is updated while searching | |
| 3546 * if ML_FLUSH only flush a locked block | |
| 3547 * if ML_FIND just find the line | |
| 3548 * | |
| 3549 * If the block was found it is locked and put in ml_locked. | |
| 3550 * The stack is updated to lead to the locked block. The ip_high field in | |
| 3551 * the stack is updated to reflect the last line in the block AFTER the | |
| 3552 * insert or delete, also if the pointer block has not been updated yet. But | |
| 1167 | 3553 * if ml_locked != NULL ml_locked_lineadd must be added to ip_high. |
| 7 | 3554 * |
| 3555 * return: NULL for failure, pointer to block header otherwise | |
| 3556 */ | |
| 3557 static bhdr_T * | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3558 ml_find_line(buf_T *buf, linenr_T lnum, int action) |
| 7 | 3559 { |
| 3560 DATA_BL *dp; | |
| 3561 PTR_BL *pp; | |
| 3562 infoptr_T *ip; | |
| 3563 bhdr_T *hp; | |
| 3564 memfile_T *mfp; | |
| 3565 linenr_T t; | |
| 3566 blocknr_T bnum, bnum2; | |
| 3567 int dirty; | |
| 3568 linenr_T low, high; | |
| 3569 int top; | |
| 3570 int page_count; | |
| 3571 int idx; | |
| 3572 | |
| 3573 mfp = buf->b_ml.ml_mfp; | |
| 3574 | |
| 3575 /* | |
| 3576 * If there is a locked block check if the wanted line is in it. | |
| 3577 * If not, flush and release the locked block. | |
| 3578 * Don't do this for ML_INSERT_SAME, because the stack need to be updated. | |
| 3579 * Don't do this for ML_FLUSH, because we want to flush the locked block. | |
| 1066 | 3580 * Don't do this when 'swapfile' is reset, we want to load all the blocks. |
| 7 | 3581 */ |
| 3582 if (buf->b_ml.ml_locked) | |
| 3583 { | |
| 1066 | 3584 if (ML_SIMPLE(action) |
| 3585 && buf->b_ml.ml_locked_low <= lnum | |
| 3586 && buf->b_ml.ml_locked_high >= lnum | |
| 3587 && !mf_dont_release) | |
| 7 | 3588 { |
| 1066 | 3589 /* remember to update pointer blocks and stack later */ |
| 7 | 3590 if (action == ML_INSERT) |
| 3591 { | |
| 3592 ++(buf->b_ml.ml_locked_lineadd); | |
| 3593 ++(buf->b_ml.ml_locked_high); | |
| 3594 } | |
| 3595 else if (action == ML_DELETE) | |
| 3596 { | |
| 3597 --(buf->b_ml.ml_locked_lineadd); | |
| 3598 --(buf->b_ml.ml_locked_high); | |
| 3599 } | |
| 3600 return (buf->b_ml.ml_locked); | |
| 3601 } | |
| 3602 | |
| 3603 mf_put(mfp, buf->b_ml.ml_locked, buf->b_ml.ml_flags & ML_LOCKED_DIRTY, | |
| 3604 buf->b_ml.ml_flags & ML_LOCKED_POS); | |
| 3605 buf->b_ml.ml_locked = NULL; | |
| 3606 | |
| 1167 | 3607 /* |
| 3608 * If lines have been added or deleted in the locked block, need to | |
| 3609 * update the line count in pointer blocks. | |
| 3610 */ | |
| 3611 if (buf->b_ml.ml_locked_lineadd != 0) | |
| 7 | 3612 ml_lineadd(buf, buf->b_ml.ml_locked_lineadd); |
| 3613 } | |
| 3614 | |
| 3615 if (action == ML_FLUSH) /* nothing else to do */ | |
| 3616 return NULL; | |
| 3617 | |
| 3618 bnum = 1; /* start at the root of the tree */ | |
| 3619 page_count = 1; | |
| 3620 low = 1; | |
| 3621 high = buf->b_ml.ml_line_count; | |
| 3622 | |
| 3623 if (action == ML_FIND) /* first try stack entries */ | |
| 3624 { | |
| 3625 for (top = buf->b_ml.ml_stack_top - 1; top >= 0; --top) | |
| 3626 { | |
| 3627 ip = &(buf->b_ml.ml_stack[top]); | |
| 3628 if (ip->ip_low <= lnum && ip->ip_high >= lnum) | |
| 3629 { | |
| 3630 bnum = ip->ip_bnum; | |
| 3631 low = ip->ip_low; | |
| 3632 high = ip->ip_high; | |
| 3633 buf->b_ml.ml_stack_top = top; /* truncate stack at prev entry */ | |
| 3634 break; | |
| 3635 } | |
| 3636 } | |
| 3637 if (top < 0) | |
| 3638 buf->b_ml.ml_stack_top = 0; /* not found, start at the root */ | |
| 3639 } | |
| 3640 else /* ML_DELETE or ML_INSERT */ | |
| 3641 buf->b_ml.ml_stack_top = 0; /* start at the root */ | |
| 3642 | |
| 3643 /* | |
| 3644 * search downwards in the tree until a data block is found | |
| 3645 */ | |
| 3646 for (;;) | |
| 3647 { | |
| 3648 if ((hp = mf_get(mfp, bnum, page_count)) == NULL) | |
| 3649 goto error_noblock; | |
| 3650 | |
| 3651 /* | |
| 3652 * update high for insert/delete | |
| 3653 */ | |
| 3654 if (action == ML_INSERT) | |
| 3655 ++high; | |
| 3656 else if (action == ML_DELETE) | |
| 3657 --high; | |
| 3658 | |
| 3659 dp = (DATA_BL *)(hp->bh_data); | |
| 3660 if (dp->db_id == DATA_ID) /* data block */ | |
| 3661 { | |
| 3662 buf->b_ml.ml_locked = hp; | |
| 3663 buf->b_ml.ml_locked_low = low; | |
| 3664 buf->b_ml.ml_locked_high = high; | |
| 3665 buf->b_ml.ml_locked_lineadd = 0; | |
| 3666 buf->b_ml.ml_flags &= ~(ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 3667 return hp; | |
| 3668 } | |
| 3669 | |
| 3670 pp = (PTR_BL *)(dp); /* must be pointer block */ | |
| 3671 if (pp->pb_id != PTR_ID) | |
| 3672 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3673 IEMSG(_("E317: pointer block id wrong")); |
| 7 | 3674 goto error_block; |
| 3675 } | |
| 3676 | |
| 3677 if ((top = ml_add_stack(buf)) < 0) /* add new entry to stack */ | |
| 3678 goto error_block; | |
| 3679 ip = &(buf->b_ml.ml_stack[top]); | |
| 3680 ip->ip_bnum = bnum; | |
| 3681 ip->ip_low = low; | |
| 3682 ip->ip_high = high; | |
| 3683 ip->ip_index = -1; /* index not known yet */ | |
| 3684 | |
| 3685 dirty = FALSE; | |
| 3686 for (idx = 0; idx < (int)pp->pb_count; ++idx) | |
| 3687 { | |
| 3688 t = pp->pb_pointer[idx].pe_line_count; | |
| 3689 CHECK(t == 0, _("pe_line_count is zero")); | |
| 3690 if ((low += t) > lnum) | |
| 3691 { | |
| 3692 ip->ip_index = idx; | |
| 3693 bnum = pp->pb_pointer[idx].pe_bnum; | |
| 3694 page_count = pp->pb_pointer[idx].pe_page_count; | |
| 3695 high = low - 1; | |
| 3696 low -= t; | |
| 3697 | |
| 3698 /* | |
| 3699 * a negative block number may have been changed | |
| 3700 */ | |
| 3701 if (bnum < 0) | |
| 3702 { | |
| 3703 bnum2 = mf_trans_del(mfp, bnum); | |
| 3704 if (bnum != bnum2) | |
| 3705 { | |
| 3706 bnum = bnum2; | |
| 3707 pp->pb_pointer[idx].pe_bnum = bnum; | |
| 3708 dirty = TRUE; | |
| 3709 } | |
| 3710 } | |
| 3711 | |
| 3712 break; | |
| 3713 } | |
| 3714 } | |
| 3715 if (idx >= (int)pp->pb_count) /* past the end: something wrong! */ | |
| 3716 { | |
| 3717 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
|
3718 IEMSGN(_("E322: line number out of range: %ld past the end"), |
| 7 | 3719 lnum - buf->b_ml.ml_line_count); |
| 3720 | |
| 3721 else | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3722 IEMSGN(_("E323: line count wrong in block %ld"), bnum); |
| 7 | 3723 goto error_block; |
| 3724 } | |
| 3725 if (action == ML_DELETE) | |
| 3726 { | |
| 3727 pp->pb_pointer[idx].pe_line_count--; | |
| 3728 dirty = TRUE; | |
| 3729 } | |
| 3730 else if (action == ML_INSERT) | |
| 3731 { | |
| 3732 pp->pb_pointer[idx].pe_line_count++; | |
| 3733 dirty = TRUE; | |
| 3734 } | |
| 3735 mf_put(mfp, hp, dirty, FALSE); | |
| 3736 } | |
| 3737 | |
| 3738 error_block: | |
| 3739 mf_put(mfp, hp, FALSE, FALSE); | |
| 3740 error_noblock: | |
| 2267 | 3741 /* |
| 3742 * If action is ML_DELETE or ML_INSERT we have to correct the tree for | |
| 3743 * the incremented/decremented line counts, because there won't be a line | |
| 3744 * inserted/deleted after all. | |
| 3745 */ | |
| 7 | 3746 if (action == ML_DELETE) |
| 3747 ml_lineadd(buf, 1); | |
| 3748 else if (action == ML_INSERT) | |
| 3749 ml_lineadd(buf, -1); | |
| 3750 buf->b_ml.ml_stack_top = 0; | |
| 3751 return NULL; | |
| 3752 } | |
| 3753 | |
| 3754 /* | |
| 3755 * add an entry to the info pointer stack | |
| 3756 * | |
| 3757 * return -1 for failure, number of the new entry otherwise | |
| 3758 */ | |
| 3759 static int | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3760 ml_add_stack(buf_T *buf) |
| 7 | 3761 { |
| 3762 int top; | |
| 3763 infoptr_T *newstack; | |
| 3764 | |
| 3765 top = buf->b_ml.ml_stack_top; | |
| 3766 | |
| 2267 | 3767 /* may have to increase the stack size */ |
| 7 | 3768 if (top == buf->b_ml.ml_stack_size) |
| 3769 { | |
| 2267 | 3770 CHECK(top > 0, _("Stack size increases")); /* more than 5 levels??? */ |
| 7 | 3771 |
| 3772 newstack = (infoptr_T *)alloc((unsigned)sizeof(infoptr_T) * | |
| 3773 (buf->b_ml.ml_stack_size + STACK_INCR)); | |
| 3774 if (newstack == NULL) | |
| 3775 return -1; | |
| 6989 | 3776 if (top > 0) |
| 3777 mch_memmove(newstack, buf->b_ml.ml_stack, | |
| 1624 | 3778 (size_t)top * sizeof(infoptr_T)); |
| 7 | 3779 vim_free(buf->b_ml.ml_stack); |
| 3780 buf->b_ml.ml_stack = newstack; | |
| 3781 buf->b_ml.ml_stack_size += STACK_INCR; | |
| 3782 } | |
| 3783 | |
| 3784 buf->b_ml.ml_stack_top++; | |
| 3785 return top; | |
| 3786 } | |
| 3787 | |
| 3788 /* | |
| 3789 * Update the pointer blocks on the stack for inserted/deleted lines. | |
| 3790 * The stack itself is also updated. | |
| 3791 * | |
| 3792 * When a insert/delete line action fails, the line is not inserted/deleted, | |
| 3793 * but the pointer blocks have already been updated. That is fixed here by | |
| 3794 * walking through the stack. | |
| 3795 * | |
| 3796 * Count is the number of lines added, negative if lines have been deleted. | |
| 3797 */ | |
| 3798 static void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3799 ml_lineadd(buf_T *buf, int count) |
| 7 | 3800 { |
| 3801 int idx; | |
| 3802 infoptr_T *ip; | |
| 3803 PTR_BL *pp; | |
| 3804 memfile_T *mfp = buf->b_ml.ml_mfp; | |
| 3805 bhdr_T *hp; | |
| 3806 | |
| 3807 for (idx = buf->b_ml.ml_stack_top - 1; idx >= 0; --idx) | |
| 3808 { | |
| 3809 ip = &(buf->b_ml.ml_stack[idx]); | |
| 3810 if ((hp = mf_get(mfp, ip->ip_bnum, 1)) == NULL) | |
| 3811 break; | |
| 3812 pp = (PTR_BL *)(hp->bh_data); /* must be pointer block */ | |
| 3813 if (pp->pb_id != PTR_ID) | |
| 3814 { | |
| 3815 mf_put(mfp, hp, FALSE, FALSE); | |
|
10359
66f1b5bf3fa6
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Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3816 IEMSG(_("E317: pointer block id wrong 2")); |
| 7 | 3817 break; |
| 3818 } | |
| 3819 pp->pb_pointer[ip->ip_index].pe_line_count += count; | |
| 3820 ip->ip_high += count; | |
| 3821 mf_put(mfp, hp, TRUE, FALSE); | |
| 3822 } | |
| 3823 } | |
| 3824 | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
3825 #if defined(HAVE_READLINK) || defined(PROTO) |
| 594 | 3826 /* |
| 3827 * Resolve a symlink in the last component of a file name. | |
| 3828 * Note that f_resolve() does it for every part of the path, we don't do that | |
| 3829 * here. | |
| 3830 * If it worked returns OK and the resolved link in "buf[MAXPATHL]". | |
| 3831 * Otherwise returns FAIL. | |
| 3832 */ | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
3833 int |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3834 resolve_symlink(char_u *fname, char_u *buf) |
| 594 | 3835 { |
| 3836 char_u tmp[MAXPATHL]; | |
| 3837 int ret; | |
| 3838 int depth = 0; | |
| 3839 | |
| 3840 if (fname == NULL) | |
| 3841 return FAIL; | |
| 3842 | |
| 3843 /* Put the result so far in tmp[], starting with the original name. */ | |
| 3844 vim_strncpy(tmp, fname, MAXPATHL - 1); | |
| 3845 | |
| 3846 for (;;) | |
| 3847 { | |
| 3848 /* Limit symlink depth to 100, catch recursive loops. */ | |
| 3849 if (++depth == 100) | |
| 3850 { | |
| 3851 EMSG2(_("E773: Symlink loop for \"%s\""), fname); | |
| 3852 return FAIL; | |
| 3853 } | |
| 3854 | |
| 3855 ret = readlink((char *)tmp, (char *)buf, MAXPATHL - 1); | |
| 3856 if (ret <= 0) | |
| 3857 { | |
| 619 | 3858 if (errno == EINVAL || errno == ENOENT) |
| 594 | 3859 { |
| 619 | 3860 /* Found non-symlink or not existing file, stop here. |
| 1855 | 3861 * When at the first level use the unmodified name, skip the |
| 594 | 3862 * call to vim_FullName(). */ |
| 3863 if (depth == 1) | |
| 3864 return FAIL; | |
| 3865 | |
| 3866 /* Use the resolved name in tmp[]. */ | |
| 3867 break; | |
| 3868 } | |
| 3869 | |
| 3870 /* There must be some error reading links, use original name. */ | |
| 3871 return FAIL; | |
| 3872 } | |
| 3873 buf[ret] = NUL; | |
| 3874 | |
| 3875 /* | |
| 3876 * Check whether the symlink is relative or absolute. | |
| 3877 * If it's relative, build a new path based on the directory | |
| 3878 * portion of the filename (if any) and the path the symlink | |
| 3879 * points to. | |
| 3880 */ | |
| 3881 if (mch_isFullName(buf)) | |
| 3882 STRCPY(tmp, buf); | |
| 3883 else | |
| 3884 { | |
| 3885 char_u *tail; | |
| 3886 | |
| 3887 tail = gettail(tmp); | |
| 3888 if (STRLEN(tail) + STRLEN(buf) >= MAXPATHL) | |
| 3889 return FAIL; | |
| 3890 STRCPY(tail, buf); | |
| 3891 } | |
| 3892 } | |
| 3893 | |
| 3894 /* | |
| 3895 * Try to resolve the full name of the file so that the swapfile name will | |
| 3896 * be consistent even when opening a relative symlink from different | |
| 3897 * working directories. | |
| 3898 */ | |
| 3899 return vim_FullName(tmp, buf, MAXPATHL, TRUE); | |
| 3900 } | |
| 3901 #endif | |
| 3902 | |
| 7 | 3903 /* |
| 460 | 3904 * Make swap file name out of the file name and a directory name. |
| 3905 * Returns pointer to allocated memory or NULL. | |
| 7 | 3906 */ |
| 460 | 3907 char_u * |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3908 makeswapname( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3909 char_u *fname, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3910 char_u *ffname UNUSED, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3911 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3912 char_u *dir_name) |
| 7 | 3913 { |
| 3914 char_u *r, *s; | |
|
2145
de0e7ca61893
updated for version 7.2.427
Bram Moolenaar <bram@zimbu.org>
parents:
2108
diff
changeset
|
3915 char_u *fname_res = fname; |
| 594 | 3916 #ifdef HAVE_READLINK |
| 3917 char_u fname_buf[MAXPATHL]; | |
| 3918 #endif | |
| 7 | 3919 |
| 3920 #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
|
3921 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
|
3922 |
|
d513b653f5d0
patch 8.0.0337: invalid memory access in :recover command
Christian Brabandt <cb@256bit.org>
parents:
10889
diff
changeset
|
3923 s = dir_name + len; |
|
d513b653f5d0
patch 8.0.0337: invalid memory access in :recover command
Christian Brabandt <cb@256bit.org>
parents:
10889
diff
changeset
|
3924 if (after_pathsep(dir_name, s) && len > 1 && s[-1] == s[-2]) |
| 7 | 3925 { /* Ends with '//', Use Full path */ |
| 3926 r = NULL; | |
| 460 | 3927 if ((s = make_percent_swname(dir_name, fname)) != NULL) |
| 7 | 3928 { |
| 3929 r = modname(s, (char_u *)".swp", FALSE); | |
| 3930 vim_free(s); | |
| 3931 } | |
| 3932 return r; | |
| 3933 } | |
| 3934 #endif | |
| 3935 | |
| 594 | 3936 #ifdef HAVE_READLINK |
| 3937 /* Expand symlink in the file name, so that we put the swap file with the | |
| 3938 * actual file instead of with the symlink. */ | |
| 3939 if (resolve_symlink(fname, fname_buf) == OK) | |
| 3940 fname_res = fname_buf; | |
| 3941 #endif | |
| 3942 | |
| 7 | 3943 r = buf_modname( |
| 3944 (buf->b_p_sn || buf->b_shortname), | |
| 594 | 3945 fname_res, |
| 7 | 3946 (char_u *) |
| 2823 | 3947 #if defined(VMS) |
| 7 | 3948 "_swp", |
| 3949 #else | |
| 3950 ".swp", | |
| 3951 #endif | |
| 3952 /* Prepend a '.' to the swap file name for the current directory. */ | |
|
8212
05b88224cea1
commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
3953 dir_name[0] == '.' && dir_name[1] == NUL); |
| 7 | 3954 if (r == NULL) /* out of memory */ |
| 3955 return NULL; | |
| 3956 | |
| 3957 s = get_file_in_dir(r, dir_name); | |
| 3958 vim_free(r); | |
| 3959 return s; | |
| 3960 } | |
| 3961 | |
| 3962 /* | |
| 3963 * Get file name to use for swap file or backup file. | |
| 3964 * Use the name of the edited file "fname" and an entry in the 'dir' or 'bdir' | |
| 3965 * option "dname". | |
| 3966 * - If "dname" is ".", return "fname" (swap file in dir of file). | |
| 3967 * - If "dname" starts with "./", insert "dname" in "fname" (swap file | |
| 3968 * relative to dir of file). | |
| 3969 * - Otherwise, prepend "dname" to the tail of "fname" (swap file in specific | |
| 3970 * dir). | |
| 3971 * | |
| 3972 * The return value is an allocated string and can be NULL. | |
| 3973 */ | |
| 3974 char_u * | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3975 get_file_in_dir( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3976 char_u *fname, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3977 char_u *dname) /* don't use "dirname", it is a global for Alpha */ |
| 7 | 3978 { |
| 3979 char_u *t; | |
| 3980 char_u *tail; | |
| 3981 char_u *retval; | |
| 3982 int save_char; | |
| 3983 | |
| 3984 tail = gettail(fname); | |
| 3985 | |
| 3986 if (dname[0] == '.' && dname[1] == NUL) | |
| 3987 retval = vim_strsave(fname); | |
| 3988 else if (dname[0] == '.' && vim_ispathsep(dname[1])) | |
| 3989 { | |
| 3990 if (tail == fname) /* no path before file name */ | |
| 3991 retval = concat_fnames(dname + 2, tail, TRUE); | |
| 3992 else | |
| 3993 { | |
| 3994 save_char = *tail; | |
| 3995 *tail = NUL; | |
| 3996 t = concat_fnames(fname, dname + 2, TRUE); | |
| 3997 *tail = save_char; | |
| 3998 if (t == NULL) /* out of memory */ | |
| 3999 retval = NULL; | |
| 4000 else | |
| 4001 { | |
| 4002 retval = concat_fnames(t, tail, TRUE); | |
| 4003 vim_free(t); | |
| 4004 } | |
| 4005 } | |
| 4006 } | |
| 4007 else | |
| 4008 retval = concat_fnames(dname, tail, TRUE); | |
| 4009 | |
| 5432 | 4010 #ifdef WIN3264 |
| 4011 if (retval != NULL) | |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
10996
diff
changeset
|
4012 for (t = gettail(retval); *t != NUL; MB_PTR_ADV(t)) |
| 5432 | 4013 if (*t == ':') |
| 4014 *t = '%'; | |
| 4015 #endif | |
| 4016 | |
| 7 | 4017 return retval; |
| 4018 } | |
| 4019 | |
|
7803
37c929c4a073
commit https://github.com/vim/vim/commit/92b8b2d307e34117f146319872010b0ccc9d2713
Christian Brabandt <cb@256bit.org>
parents:
7410
diff
changeset
|
4020 static void attention_message(buf_T *buf, char_u *fname); |
| 580 | 4021 |
| 4022 /* | |
| 4023 * Print the ATTENTION message: info about an existing swap file. | |
| 4024 */ | |
| 4025 static void | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4026 attention_message( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4027 buf_T *buf, /* buffer being edited */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4028 char_u *fname) /* swap file name */ |
| 580 | 4029 { |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4030 stat_T st; |
| 580 | 4031 time_t x, sx; |
| 1001 | 4032 char *p; |
| 580 | 4033 |
| 4034 ++no_wait_return; | |
| 4035 (void)EMSG(_("E325: ATTENTION")); | |
| 4036 MSG_PUTS(_("\nFound a swap file by the name \"")); | |
| 4037 msg_home_replace(fname); | |
| 4038 MSG_PUTS("\"\n"); | |
| 4039 sx = swapfile_info(fname); | |
| 4040 MSG_PUTS(_("While opening file \"")); | |
| 4041 msg_outtrans(buf->b_fname); | |
| 4042 MSG_PUTS("\"\n"); | |
| 4043 if (mch_stat((char *)buf->b_fname, &st) != -1) | |
| 4044 { | |
| 4045 MSG_PUTS(_(" dated: ")); | |
| 4046 x = st.st_mtime; /* Manx C can't do &st.st_mtime */ | |
| 1001 | 4047 p = ctime(&x); /* includes '\n' */ |
| 4048 if (p == NULL) | |
| 4049 MSG_PUTS("(invalid)\n"); | |
| 4050 else | |
| 4051 MSG_PUTS(p); | |
| 580 | 4052 if (sx != 0 && x > sx) |
| 4053 MSG_PUTS(_(" NEWER than swap file!\n")); | |
| 4054 } | |
| 4055 /* Some of these messages are long to allow translation to | |
| 4056 * other languages. */ | |
|
7881
e7afe45a202a
commit https://github.com/vim/vim/commit/d9ea9069f5ef5b8b9f9e0d0daecdd124e2dcd818
Christian Brabandt <cb@256bit.org>
parents:
7827
diff
changeset
|
4057 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 | 4058 MSG_PUTS(_("(2) An edit session for this file crashed.\n")); |
| 580 | 4059 MSG_PUTS(_(" If this is the case, use \":recover\" or \"vim -r ")); |
| 4060 msg_outtrans(buf->b_fname); | |
| 4061 MSG_PUTS(_("\"\n to recover the changes (see \":help recovery\").\n")); | |
| 4062 MSG_PUTS(_(" If you did this already, delete the swap file \"")); | |
| 4063 msg_outtrans(fname); | |
| 4064 MSG_PUTS(_("\"\n to avoid this message.\n")); | |
| 4065 cmdline_row = msg_row; | |
| 4066 --no_wait_return; | |
| 4067 } | |
| 4068 | |
|
13380
69517d67421f
patch 8.0.1564: too many #ifdefs
Christian Brabandt <cb@256bit.org>
parents:
13244
diff
changeset
|
4069 #if defined(FEAT_EVAL) |
| 580 | 4070 /* |
| 4071 * Trigger the SwapExists autocommands. | |
| 4072 * Returns a value for equivalent to do_dialog() (see below): | |
| 4073 * 0: still need to ask for a choice | |
| 4074 * 1: open read-only | |
| 4075 * 2: edit anyway | |
| 4076 * 3: recover | |
| 4077 * 4: delete it | |
| 4078 * 5: quit | |
| 4079 * 6: abort | |
| 4080 */ | |
| 4081 static int | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4082 do_swapexists(buf_T *buf, char_u *fname) |
| 580 | 4083 { |
| 4084 set_vim_var_string(VV_SWAPNAME, fname, -1); | |
| 4085 set_vim_var_string(VV_SWAPCHOICE, NULL, -1); | |
| 4086 | |
| 4087 /* Trigger SwapExists autocommands with <afile> set to the file being | |
| 1856 | 4088 * edited. Disallow changing directory here. */ |
| 4089 ++allbuf_lock; | |
| 580 | 4090 apply_autocmds(EVENT_SWAPEXISTS, buf->b_fname, NULL, FALSE, NULL); |
| 1856 | 4091 --allbuf_lock; |
| 580 | 4092 |
| 4093 set_vim_var_string(VV_SWAPNAME, NULL, -1); | |
| 4094 | |
| 4095 switch (*get_vim_var_str(VV_SWAPCHOICE)) | |
| 4096 { | |
| 4097 case 'o': return 1; | |
| 4098 case 'e': return 2; | |
| 4099 case 'r': return 3; | |
| 4100 case 'd': return 4; | |
| 4101 case 'q': return 5; | |
| 4102 case 'a': return 6; | |
| 4103 } | |
| 4104 | |
| 4105 return 0; | |
| 4106 } | |
| 4107 #endif | |
| 4108 | |
| 7 | 4109 /* |
| 4110 * Find out what name to use for the swap file for buffer 'buf'. | |
| 4111 * | |
| 4112 * Several names are tried to find one that does not exist | |
| 460 | 4113 * Returns the name in allocated memory or NULL. |
| 3158 | 4114 * When out of memory "dirp" is set to NULL. |
| 7 | 4115 * |
| 4116 * Note: If BASENAMELEN is not correct, you will get error messages for | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4117 * not being able to open the swap or undo file |
| 1856 | 4118 * Note: May trigger SwapExists autocmd, pointers may change! |
| 7 | 4119 */ |
| 4120 static char_u * | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4121 findswapname( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4122 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4123 char_u **dirp, /* pointer to list of directories */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4124 char_u *old_fname) /* don't give warning for this file name */ |
| 7 | 4125 { |
| 4126 char_u *fname; | |
| 4127 int n; | |
| 4128 char_u *dir_name; | |
| 4129 #ifdef AMIGA | |
| 4130 BPTR fh; | |
| 4131 #endif | |
| 4132 int r; | |
| 5432 | 4133 char_u *buf_fname = buf->b_fname; |
| 7 | 4134 |
|
8212
05b88224cea1
commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
4135 #if !defined(UNIX) |
| 7 | 4136 # define CREATE_DUMMY_FILE |
| 4137 FILE *dummyfd = NULL; | |
| 4138 | |
| 5432 | 4139 # ifdef WIN3264 |
| 4140 if (buf_fname != NULL && !mch_isFullName(buf_fname) | |
| 4141 && vim_strchr(gettail(buf_fname), ':')) | |
| 4142 { | |
| 4143 char_u *t; | |
| 4144 | |
| 4145 buf_fname = vim_strsave(buf_fname); | |
| 4146 if (buf_fname == NULL) | |
| 4147 buf_fname = buf->b_fname; | |
| 4148 else | |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
10996
diff
changeset
|
4149 for (t = gettail(buf_fname); *t != NUL; MB_PTR_ADV(t)) |
| 5432 | 4150 if (*t == ':') |
| 4151 *t = '%'; | |
| 4152 } | |
| 4153 # endif | |
| 4154 | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4155 /* |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4156 * If we start editing a new file, e.g. "test.doc", which resides on an |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4157 * MSDOS compatible filesystem, it is possible that the file |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4158 * "test.doc.swp" which we create will be exactly the same file. To avoid |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4159 * this problem we temporarily create "test.doc". Don't do this when the |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4160 * check below for a 8.3 file name is used. |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4161 */ |
| 5432 | 4162 if (!(buf->b_p_sn || buf->b_shortname) && buf_fname != NULL |
| 4163 && mch_getperm(buf_fname) < 0) | |
| 4164 dummyfd = mch_fopen((char *)buf_fname, "w"); | |
| 7 | 4165 #endif |
| 4166 | |
|
2214
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Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4167 /* |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4168 * Isolate a directory name from *dirp and put it in dir_name. |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4169 * First allocate some memory to put the directory name in. |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4170 */ |
| 7 | 4171 dir_name = alloc((unsigned)STRLEN(*dirp) + 1); |
| 3158 | 4172 if (dir_name == NULL) |
| 4173 *dirp = NULL; | |
| 4174 else | |
| 7 | 4175 (void)copy_option_part(dirp, dir_name, 31000, ","); |
| 4176 | |
|
2214
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Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4177 /* |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4178 * we try different names until we find one that does not exist yet |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4179 */ |
| 7 | 4180 if (dir_name == NULL) /* out of memory */ |
| 4181 fname = NULL; | |
| 4182 else | |
| 5432 | 4183 fname = makeswapname(buf_fname, buf->b_ffname, buf, dir_name); |
| 7 | 4184 |
| 4185 for (;;) | |
| 4186 { | |
| 4187 if (fname == NULL) /* must be out of memory */ | |
| 4188 break; | |
| 4189 if ((n = (int)STRLEN(fname)) == 0) /* safety check */ | |
| 4190 { | |
|
13244
ac42c4b11dbc
patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12975
diff
changeset
|
4191 VIM_CLEAR(fname); |
| 7 | 4192 break; |
| 4193 } | |
|
8212
05b88224cea1
commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
4194 #if defined(UNIX) |
| 7 | 4195 /* |
| 4196 * Some systems have a MS-DOS compatible filesystem that use 8.3 character | |
| 4197 * file names. If this is the first try and the swap file name does not fit in | |
| 4198 * 8.3, detect if this is the case, set shortname and try again. | |
| 4199 */ | |
| 4200 if (fname[n - 2] == 'w' && fname[n - 1] == 'p' | |
| 4201 && !(buf->b_p_sn || buf->b_shortname)) | |
| 4202 { | |
| 4203 char_u *tail; | |
| 4204 char_u *fname2; | |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4205 stat_T s1, s2; |
| 7 | 4206 int f1, f2; |
| 4207 int created1 = FALSE, created2 = FALSE; | |
| 4208 int same = FALSE; | |
| 4209 | |
| 4210 /* | |
| 4211 * Check if swapfile name does not fit in 8.3: | |
| 4212 * It either contains two dots, is longer than 8 chars, or starts | |
| 4213 * with a dot. | |
| 4214 */ | |
| 5432 | 4215 tail = gettail(buf_fname); |
| 7 | 4216 if ( vim_strchr(tail, '.') != NULL |
| 4217 || STRLEN(tail) > (size_t)8 | |
| 4218 || *gettail(fname) == '.') | |
| 4219 { | |
| 4220 fname2 = alloc(n + 2); | |
| 4221 if (fname2 != NULL) | |
| 4222 { | |
| 4223 STRCPY(fname2, fname); | |
| 4224 /* if fname == "xx.xx.swp", fname2 = "xx.xx.swx" | |
| 4225 * if fname == ".xx.swp", fname2 = ".xx.swpx" | |
| 4226 * if fname == "123456789.swp", fname2 = "12345678x.swp" | |
| 4227 */ | |
| 4228 if (vim_strchr(tail, '.') != NULL) | |
| 4229 fname2[n - 1] = 'x'; | |
| 4230 else if (*gettail(fname) == '.') | |
| 4231 { | |
| 4232 fname2[n] = 'x'; | |
| 4233 fname2[n + 1] = NUL; | |
| 4234 } | |
| 4235 else | |
| 4236 fname2[n - 5] += 1; | |
| 4237 /* | |
| 4238 * may need to create the files to be able to use mch_stat() | |
| 4239 */ | |
| 4240 f1 = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
| 4241 if (f1 < 0) | |
| 4242 { | |
| 4243 f1 = mch_open_rw((char *)fname, | |
| 4244 O_RDWR|O_CREAT|O_EXCL|O_EXTRA); | |
| 4245 created1 = TRUE; | |
| 4246 } | |
| 4247 if (f1 >= 0) | |
| 4248 { | |
| 4249 f2 = mch_open((char *)fname2, O_RDONLY | O_EXTRA, 0); | |
| 4250 if (f2 < 0) | |
| 4251 { | |
| 4252 f2 = mch_open_rw((char *)fname2, | |
| 4253 O_RDWR|O_CREAT|O_EXCL|O_EXTRA); | |
| 4254 created2 = TRUE; | |
| 4255 } | |
| 4256 if (f2 >= 0) | |
| 4257 { | |
| 4258 /* | |
| 4259 * Both files exist now. If mch_stat() returns the | |
| 4260 * same device and inode they are the same file. | |
| 4261 */ | |
| 4262 if (mch_fstat(f1, &s1) != -1 | |
| 4263 && mch_fstat(f2, &s2) != -1 | |
| 4264 && s1.st_dev == s2.st_dev | |
| 4265 && s1.st_ino == s2.st_ino) | |
| 4266 same = TRUE; | |
| 4267 close(f2); | |
| 4268 if (created2) | |
| 4269 mch_remove(fname2); | |
| 4270 } | |
| 4271 close(f1); | |
| 4272 if (created1) | |
| 4273 mch_remove(fname); | |
| 4274 } | |
| 4275 vim_free(fname2); | |
| 4276 if (same) | |
| 4277 { | |
| 4278 buf->b_shortname = TRUE; | |
| 4279 vim_free(fname); | |
| 5432 | 4280 fname = makeswapname(buf_fname, buf->b_ffname, |
| 460 | 4281 buf, dir_name); |
| 7 | 4282 continue; /* try again with b_shortname set */ |
| 4283 } | |
| 4284 } | |
| 4285 } | |
| 4286 } | |
| 4287 #endif | |
| 4288 /* | |
| 4289 * check if the swapfile already exists | |
| 4290 */ | |
| 4291 if (mch_getperm(fname) < 0) /* it does not exist */ | |
| 4292 { | |
| 4293 #ifdef HAVE_LSTAT | |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4294 stat_T sb; |
| 7 | 4295 |
| 4296 /* | |
| 4297 * Extra security check: When a swap file is a symbolic link, this | |
| 4298 * is most likely a symlink attack. | |
| 4299 */ | |
| 4300 if (mch_lstat((char *)fname, &sb) < 0) | |
| 4301 #else | |
| 4302 # ifdef AMIGA | |
| 4303 fh = Open((UBYTE *)fname, (long)MODE_NEWFILE); | |
| 4304 /* | |
| 4305 * on the Amiga mch_getperm() will return -1 when the file exists | |
| 4306 * but is being used by another program. This happens if you edit | |
| 4307 * a file twice. | |
| 4308 */ | |
| 4309 if (fh != (BPTR)NULL) /* can open file, OK */ | |
| 4310 { | |
| 4311 Close(fh); | |
| 4312 mch_remove(fname); | |
| 4313 break; | |
| 4314 } | |
| 4315 if (IoErr() != ERROR_OBJECT_IN_USE | |
| 4316 && IoErr() != ERROR_OBJECT_EXISTS) | |
| 4317 # endif | |
| 4318 #endif | |
| 4319 break; | |
| 4320 } | |
| 4321 | |
| 4322 /* | |
| 4323 * A file name equal to old_fname is OK to use. | |
| 4324 */ | |
| 4325 if (old_fname != NULL && fnamecmp(fname, old_fname) == 0) | |
| 4326 break; | |
| 4327 | |
| 4328 /* | |
| 4329 * get here when file already exists | |
| 4330 */ | |
| 4331 if (fname[n - 2] == 'w' && fname[n - 1] == 'p') /* first try */ | |
| 4332 { | |
| 4333 /* | |
| 4334 * on MS-DOS compatible filesystems (e.g. messydos) file.doc.swp | |
| 4335 * and file.doc are the same file. To guess if this problem is | |
| 4336 * present try if file.doc.swx exists. If it does, we set | |
| 4337 * buf->b_shortname and try file_doc.swp (dots replaced by | |
| 4338 * underscores for this file), and try again. If it doesn't we | |
| 4339 * assume that "file.doc.swp" already exists. | |
| 4340 */ | |
| 4341 if (!(buf->b_p_sn || buf->b_shortname)) /* not tried yet */ | |
| 4342 { | |
| 4343 fname[n - 1] = 'x'; | |
| 4344 r = mch_getperm(fname); /* try "file.swx" */ | |
| 4345 fname[n - 1] = 'p'; | |
| 4346 if (r >= 0) /* "file.swx" seems to exist */ | |
| 4347 { | |
| 4348 buf->b_shortname = TRUE; | |
| 4349 vim_free(fname); | |
| 5432 | 4350 fname = makeswapname(buf_fname, buf->b_ffname, |
| 460 | 4351 buf, dir_name); |
| 7 | 4352 continue; /* try again with '.' replaced with '_' */ |
| 4353 } | |
| 4354 } | |
| 4355 /* | |
| 4356 * If we get here the ".swp" file really exists. | |
| 4357 * Give an error message, unless recovering, no file name, we are | |
| 4358 * viewing a help file or when the path of the file is different | |
| 4359 * (happens when all .swp files are in one directory). | |
| 4360 */ | |
| 5432 | 4361 if (!recoverymode && buf_fname != NULL |
| 43 | 4362 && !buf->b_help && !(buf->b_flags & BF_DUMMY)) |
| 7 | 4363 { |
| 4364 int fd; | |
| 4365 struct block0 b0; | |
| 4366 int differ = FALSE; | |
| 4367 | |
| 4368 /* | |
| 4369 * Try to read block 0 from the swap file to get the original | |
| 4370 * file name (and inode number). | |
| 4371 */ | |
| 4372 fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
| 4373 if (fd >= 0) | |
| 4374 { | |
| 2664 | 4375 if (read_eintr(fd, &b0, sizeof(b0)) == sizeof(b0)) |
| 7 | 4376 { |
| 4377 /* | |
| 39 | 4378 * If the swapfile has the same directory as the |
| 4379 * buffer don't compare the directory names, they can | |
| 4380 * have a different mountpoint. | |
| 7 | 4381 */ |
| 39 | 4382 if (b0.b0_flags & B0_SAME_DIR) |
| 4383 { | |
| 4384 if (fnamecmp(gettail(buf->b_ffname), | |
| 4385 gettail(b0.b0_fname)) != 0 | |
| 4386 || !same_directory(fname, buf->b_ffname)) | |
| 594 | 4387 { |
| 4388 #ifdef CHECK_INODE | |
| 4389 /* Symlinks may point to the same file even | |
| 4390 * when the name differs, need to check the | |
| 4391 * inode too. */ | |
| 4392 expand_env(b0.b0_fname, NameBuff, MAXPATHL); | |
| 4393 if (fnamecmp_ino(buf->b_ffname, NameBuff, | |
| 4394 char_to_long(b0.b0_ino))) | |
| 4395 #endif | |
| 4396 differ = TRUE; | |
| 4397 } | |
| 39 | 4398 } |
| 4399 else | |
| 4400 { | |
| 4401 /* | |
| 4402 * The name in the swap file may be | |
| 4403 * "~user/path/file". Expand it first. | |
| 4404 */ | |
| 4405 expand_env(b0.b0_fname, NameBuff, MAXPATHL); | |
| 7 | 4406 #ifdef CHECK_INODE |
| 39 | 4407 if (fnamecmp_ino(buf->b_ffname, NameBuff, |
| 594 | 4408 char_to_long(b0.b0_ino))) |
| 39 | 4409 differ = TRUE; |
| 7 | 4410 #else |
| 39 | 4411 if (fnamecmp(NameBuff, buf->b_ffname) != 0) |
| 4412 differ = TRUE; | |
| 7 | 4413 #endif |
| 39 | 4414 } |
| 7 | 4415 } |
| 4416 close(fd); | |
| 4417 } | |
| 4418 | |
| 4419 /* give the ATTENTION message when there is an old swap file | |
| 4420 * for the current file, and the buffer was not recovered. */ | |
| 4421 if (differ == FALSE && !(curbuf->b_flags & BF_RECOVERED) | |
| 4422 && vim_strchr(p_shm, SHM_ATTENTION) == NULL) | |
| 4423 { | |
| 580 | 4424 #if defined(HAS_SWAP_EXISTS_ACTION) |
| 4425 int choice = 0; | |
| 4426 #endif | |
| 7 | 4427 #ifdef CREATE_DUMMY_FILE |
| 4428 int did_use_dummy = FALSE; | |
| 4429 | |
| 4430 /* Avoid getting a warning for the file being created | |
| 4431 * outside of Vim, it was created at the start of this | |
| 4432 * function. Delete the file now, because Vim might exit | |
| 4433 * here if the window is closed. */ | |
| 4434 if (dummyfd != NULL) | |
| 4435 { | |
| 4436 fclose(dummyfd); | |
| 4437 dummyfd = NULL; | |
| 5432 | 4438 mch_remove(buf_fname); |
| 7 | 4439 did_use_dummy = TRUE; |
| 4440 } | |
| 4441 #endif | |
| 4442 | |
|
9536
b2aada04d84e
commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
4443 #if (defined(UNIX) || defined(VMS)) && (defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)) |
| 7 | 4444 process_still_running = FALSE; |
| 4445 #endif | |
|
13380
69517d67421f
patch 8.0.1564: too many #ifdefs
Christian Brabandt <cb@256bit.org>
parents:
13244
diff
changeset
|
4446 #if defined(FEAT_EVAL) |
| 580 | 4447 /* |
| 4448 * If there is an SwapExists autocommand and we can handle | |
| 4449 * the response, trigger it. It may return 0 to ask the | |
| 4450 * user anyway. | |
| 4451 */ | |
| 4452 if (swap_exists_action != SEA_NONE | |
| 5432 | 4453 && has_autocmd(EVENT_SWAPEXISTS, buf_fname, buf)) |
| 580 | 4454 choice = do_swapexists(buf, fname); |
| 4455 | |
| 4456 if (choice == 0) | |
| 4457 #endif | |
| 7 | 4458 { |
| 580 | 4459 #ifdef FEAT_GUI |
| 4460 /* If we are supposed to start the GUI but it wasn't | |
| 4461 * completely started yet, start it now. This makes | |
| 4462 * the messages displayed in the Vim window when | |
| 4463 * loading a session from the .gvimrc file. */ | |
| 4464 if (gui.starting && !gui.in_use) | |
| 4465 gui_start(); | |
| 4466 #endif | |
| 4467 /* Show info about the existing swap file. */ | |
| 4468 attention_message(buf, fname); | |
| 4469 | |
| 4470 /* We don't want a 'q' typed at the more-prompt | |
| 4471 * interrupt loading a file. */ | |
| 4472 got_int = FALSE; | |
| 7 | 4473 } |
| 4474 | |
| 4475 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) | |
| 580 | 4476 if (swap_exists_action != SEA_NONE && choice == 0) |
| 7 | 4477 { |
| 4478 char_u *name; | |
| 4479 | |
| 4480 name = alloc((unsigned)(STRLEN(fname) | |
| 4481 + STRLEN(_("Swap file \"")) | |
| 4482 + STRLEN(_("\" already exists!")) + 5)); | |
| 4483 if (name != NULL) | |
| 4484 { | |
| 4485 STRCPY(name, _("Swap file \"")); | |
| 4486 home_replace(NULL, fname, name + STRLEN(name), | |
| 4487 1000, TRUE); | |
| 4488 STRCAT(name, _("\" already exists!")); | |
| 4489 } | |
| 580 | 4490 choice = do_dialog(VIM_WARNING, |
| 7 | 4491 (char_u *)_("VIM - ATTENTION"), |
| 4492 name == NULL | |
| 4493 ? (char_u *)_("Swap file already exists!") | |
| 4494 : name, | |
|
9536
b2aada04d84e
commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
4495 # if defined(UNIX) || defined(VMS) |
| 7 | 4496 process_still_running |
| 4497 ? (char_u *)_("&Open Read-Only\n&Edit anyway\n&Recover\n&Quit\n&Abort") : | |
| 4498 # endif | |
| 2684 | 4499 (char_u *)_("&Open Read-Only\n&Edit anyway\n&Recover\n&Delete it\n&Quit\n&Abort"), 1, NULL, FALSE); |
| 580 | 4500 |
|
9536
b2aada04d84e
commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
4501 # if defined(UNIX) || defined(VMS) |
| 580 | 4502 if (process_still_running && choice >= 4) |
| 4503 choice++; /* Skip missing "Delete it" button */ | |
| 4504 # endif | |
| 4505 vim_free(name); | |
| 4506 | |
| 4507 /* pretend screen didn't scroll, need redraw anyway */ | |
| 4508 msg_scrolled = 0; | |
| 4509 redraw_all_later(NOT_VALID); | |
| 4510 } | |
| 4511 #endif | |
| 4512 | |
| 4513 #if defined(HAS_SWAP_EXISTS_ACTION) | |
| 4514 if (choice > 0) | |
| 4515 { | |
| 4516 switch (choice) | |
| 7 | 4517 { |
| 4518 case 1: | |
| 4519 buf->b_p_ro = TRUE; | |
| 4520 break; | |
| 4521 case 2: | |
| 4522 break; | |
| 4523 case 3: | |
| 4524 swap_exists_action = SEA_RECOVER; | |
| 4525 break; | |
| 4526 case 4: | |
| 580 | 4527 mch_remove(fname); |
| 4528 break; | |
| 4529 case 5: | |
| 7 | 4530 swap_exists_action = SEA_QUIT; |
| 4531 break; | |
| 580 | 4532 case 6: |
| 7 | 4533 swap_exists_action = SEA_QUIT; |
| 4534 got_int = TRUE; | |
| 4535 break; | |
| 4536 } | |
| 4537 | |
| 4538 /* If the file was deleted this fname can be used. */ | |
| 4539 if (mch_getperm(fname) < 0) | |
| 4540 break; | |
| 4541 } | |
| 4542 else | |
| 4543 #endif | |
| 4544 { | |
| 4545 MSG_PUTS("\n"); | |
| 625 | 4546 if (msg_silent == 0) |
| 4547 /* call wait_return() later */ | |
| 4548 need_wait_return = TRUE; | |
| 7 | 4549 } |
| 4550 | |
| 4551 #ifdef CREATE_DUMMY_FILE | |
| 4552 /* Going to try another name, need the dummy file again. */ | |
| 4553 if (did_use_dummy) | |
| 5432 | 4554 dummyfd = mch_fopen((char *)buf_fname, "w"); |
| 7 | 4555 #endif |
| 4556 } | |
| 4557 } | |
| 4558 } | |
| 4559 | |
| 4560 /* | |
| 4561 * Change the ".swp" extension to find another file that can be used. | |
| 4562 * First decrement the last char: ".swo", ".swn", etc. | |
| 4563 * If that still isn't enough decrement the last but one char: ".svz" | |
| 9 | 4564 * Can happen when editing many "No Name" buffers. |
| 7 | 4565 */ |
| 4566 if (fname[n - 1] == 'a') /* ".s?a" */ | |
| 4567 { | |
| 4568 if (fname[n - 2] == 'a') /* ".saa": tried enough, give up */ | |
| 4569 { | |
| 4570 EMSG(_("E326: Too many swap files found")); | |
|
13244
ac42c4b11dbc
patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12975
diff
changeset
|
4571 VIM_CLEAR(fname); |
| 7 | 4572 break; |
| 4573 } | |
| 4574 --fname[n - 2]; /* ".svz", ".suz", etc. */ | |
| 4575 fname[n - 1] = 'z' + 1; | |
| 4576 } | |
| 4577 --fname[n - 1]; /* ".swo", ".swn", etc. */ | |
| 4578 } | |
| 4579 | |
| 4580 vim_free(dir_name); | |
| 4581 #ifdef CREATE_DUMMY_FILE | |
| 4582 if (dummyfd != NULL) /* file has been created temporarily */ | |
| 4583 { | |
| 4584 fclose(dummyfd); | |
| 5432 | 4585 mch_remove(buf_fname); |
| 7 | 4586 } |
| 4587 #endif | |
| 5432 | 4588 #ifdef WIN3264 |
| 4589 if (buf_fname != buf->b_fname) | |
| 4590 vim_free(buf_fname); | |
| 4591 #endif | |
| 7 | 4592 return fname; |
| 4593 } | |
| 4594 | |
| 4595 static int | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4596 b0_magic_wrong(ZERO_BL *b0p) |
| 7 | 4597 { |
| 4598 return (b0p->b0_magic_long != (long)B0_MAGIC_LONG | |
| 4599 || b0p->b0_magic_int != (int)B0_MAGIC_INT | |
| 4600 || b0p->b0_magic_short != (short)B0_MAGIC_SHORT | |
| 4601 || b0p->b0_magic_char != B0_MAGIC_CHAR); | |
| 4602 } | |
| 4603 | |
| 4604 #ifdef CHECK_INODE | |
| 4605 /* | |
| 4606 * Compare current file name with file name from swap file. | |
| 4607 * Try to use inode numbers when possible. | |
| 4608 * Return non-zero when files are different. | |
| 4609 * | |
| 4610 * When comparing file names a few things have to be taken into consideration: | |
| 4611 * - When working over a network the full path of a file depends on the host. | |
| 4612 * We check the inode number if possible. It is not 100% reliable though, | |
| 4613 * because the device number cannot be used over a network. | |
| 4614 * - When a file does not exist yet (editing a new file) there is no inode | |
| 4615 * number. | |
| 4616 * - The file name in a swap file may not be valid on the current host. The | |
| 4617 * "~user" form is used whenever possible to avoid this. | |
| 4618 * | |
| 4619 * This is getting complicated, let's make a table: | |
| 4620 * | |
| 4621 * ino_c ino_s fname_c fname_s differ = | |
| 4622 * | |
| 4623 * both files exist -> compare inode numbers: | |
| 4624 * != 0 != 0 X X ino_c != ino_s | |
| 4625 * | |
| 4626 * inode number(s) unknown, file names available -> compare file names | |
| 4627 * == 0 X OK OK fname_c != fname_s | |
| 4628 * X == 0 OK OK fname_c != fname_s | |
| 4629 * | |
| 4630 * current file doesn't exist, file for swap file exist, file name(s) not | |
| 4631 * available -> probably different | |
| 4632 * == 0 != 0 FAIL X TRUE | |
| 4633 * == 0 != 0 X FAIL TRUE | |
| 4634 * | |
| 4635 * current file exists, inode for swap unknown, file name(s) not | |
| 4636 * available -> probably different | |
| 4637 * != 0 == 0 FAIL X TRUE | |
| 4638 * != 0 == 0 X FAIL TRUE | |
| 4639 * | |
| 4640 * current file doesn't exist, inode for swap unknown, one file name not | |
| 4641 * available -> probably different | |
| 4642 * == 0 == 0 FAIL OK TRUE | |
| 4643 * == 0 == 0 OK FAIL TRUE | |
| 4644 * | |
| 4645 * current file doesn't exist, inode for swap unknown, both file names not | |
|
13896
4d5a1ada407e
patch 8.0.1819: swap file warning for file with non-existing directory
Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4646 * available -> compare file names |
|
4d5a1ada407e
patch 8.0.1819: swap file warning for file with non-existing directory
Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4647 * == 0 == 0 FAIL FAIL fname_c != fname_s |
| 7 | 4648 * |
| 4649 * Note that when the ino_t is 64 bits, only the last 32 will be used. This | |
| 4650 * can't be changed without making the block 0 incompatible with 32 bit | |
| 4651 * versions. | |
| 4652 */ | |
| 4653 | |
| 4654 static int | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4655 fnamecmp_ino( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4656 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
|
4657 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
|
4658 long ino_block0) |
| 7 | 4659 { |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4660 stat_T st; |
| 7 | 4661 ino_t ino_c = 0; /* ino of current file */ |
| 4662 ino_t ino_s; /* ino of file from swap file */ | |
| 4663 char_u buf_c[MAXPATHL]; /* full path of fname_c */ | |
| 4664 char_u buf_s[MAXPATHL]; /* full path of fname_s */ | |
| 4665 int retval_c; /* flag: buf_c valid */ | |
| 4666 int retval_s; /* flag: buf_s valid */ | |
| 4667 | |
| 4668 if (mch_stat((char *)fname_c, &st) == 0) | |
| 4669 ino_c = (ino_t)st.st_ino; | |
| 4670 | |
| 4671 /* | |
| 4672 * First we try to get the inode from the file name, because the inode in | |
| 4673 * the swap file may be outdated. If that fails (e.g. this path is not | |
| 4674 * valid on this machine), use the inode from block 0. | |
| 4675 */ | |
| 4676 if (mch_stat((char *)fname_s, &st) == 0) | |
| 4677 ino_s = (ino_t)st.st_ino; | |
| 4678 else | |
| 4679 ino_s = (ino_t)ino_block0; | |
| 4680 | |
| 4681 if (ino_c && ino_s) | |
| 4682 return (ino_c != ino_s); | |
| 4683 | |
| 4684 /* | |
| 4685 * One of the inode numbers is unknown, try a forced vim_FullName() and | |
| 4686 * compare the file names. | |
| 4687 */ | |
| 4688 retval_c = vim_FullName(fname_c, buf_c, MAXPATHL, TRUE); | |
| 4689 retval_s = vim_FullName(fname_s, buf_s, MAXPATHL, TRUE); | |
| 4690 if (retval_c == OK && retval_s == OK) | |
|
13896
4d5a1ada407e
patch 8.0.1819: swap file warning for file with non-existing directory
Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4691 return STRCMP(buf_c, buf_s) != 0; |
| 7 | 4692 |
| 4693 /* | |
| 4694 * Can't compare inodes or file names, guess that the files are different, | |
|
13896
4d5a1ada407e
patch 8.0.1819: swap file warning for file with non-existing directory
Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4695 * unless both appear not to exist at all, then compare with the file name |
|
4d5a1ada407e
patch 8.0.1819: swap file warning for file with non-existing directory
Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4696 * in the swap file. |
| 7 | 4697 */ |
| 4698 if (ino_s == 0 && ino_c == 0 && retval_c == FAIL && retval_s == FAIL) | |
|
13896
4d5a1ada407e
patch 8.0.1819: swap file warning for file with non-existing directory
Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4699 return STRCMP(fname_c, fname_s) != 0; |
| 7 | 4700 return TRUE; |
| 4701 } | |
| 4702 #endif /* CHECK_INODE */ | |
| 4703 | |
| 4704 /* | |
| 4705 * Move a long integer into a four byte character array. | |
| 4706 * Used for machine independency in block zero. | |
| 4707 */ | |
| 4708 static void | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4709 long_to_char(long n, char_u *s) |
| 7 | 4710 { |
| 4711 s[0] = (char_u)(n & 0xff); | |
| 4712 n = (unsigned)n >> 8; | |
| 4713 s[1] = (char_u)(n & 0xff); | |
| 4714 n = (unsigned)n >> 8; | |
| 4715 s[2] = (char_u)(n & 0xff); | |
| 4716 n = (unsigned)n >> 8; | |
| 4717 s[3] = (char_u)(n & 0xff); | |
| 4718 } | |
| 4719 | |
| 4720 static long | |
|
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41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4721 char_to_long(char_u *s) |
| 7 | 4722 { |
| 4723 long retval; | |
| 4724 | |
| 4725 retval = s[3]; | |
| 4726 retval <<= 8; | |
| 4727 retval |= s[2]; | |
| 4728 retval <<= 8; | |
| 4729 retval |= s[1]; | |
| 4730 retval <<= 8; | |
| 4731 retval |= s[0]; | |
| 4732 | |
| 4733 return retval; | |
| 4734 } | |
| 4735 | |
| 39 | 4736 /* |
| 4737 * Set the flags in the first block of the swap file: | |
| 4738 * - file is modified or not: buf->b_changed | |
| 4739 * - 'fileformat' | |
| 4740 * - 'fileencoding' | |
| 4741 */ | |
| 7 | 4742 void |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4743 ml_setflags(buf_T *buf) |
| 7 | 4744 { |
| 4745 bhdr_T *hp; | |
| 4746 ZERO_BL *b0p; | |
| 4747 | |
| 4748 if (!buf->b_ml.ml_mfp) | |
| 4749 return; | |
| 4750 for (hp = buf->b_ml.ml_mfp->mf_used_last; hp != NULL; hp = hp->bh_prev) | |
| 4751 { | |
| 4752 if (hp->bh_bnum == 0) | |
| 4753 { | |
| 4754 b0p = (ZERO_BL *)(hp->bh_data); | |
| 39 | 4755 b0p->b0_dirty = buf->b_changed ? B0_DIRTY : 0; |
| 4756 b0p->b0_flags = (b0p->b0_flags & ~B0_FF_MASK) | |
| 4757 | (get_fileformat(buf) + 1); | |
| 4758 #ifdef FEAT_MBYTE | |
| 4759 add_b0_fenc(b0p, buf); | |
| 4760 #endif | |
| 7 | 4761 hp->bh_flags |= BH_DIRTY; |
| 4762 mf_sync(buf->b_ml.ml_mfp, MFS_ZERO); | |
| 4763 break; | |
| 4764 } | |
| 4765 } | |
| 4766 } | |
| 4767 | |
| 2267 | 4768 #if defined(FEAT_CRYPT) || defined(PROTO) |
| 4769 /* | |
| 4770 * If "data" points to a data block encrypt the text in it and return a copy | |
| 4771 * in allocated memory. Return NULL when out of memory. | |
| 4772 * Otherwise return "data". | |
| 4773 */ | |
| 4774 char_u * | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4775 ml_encrypt_data( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4776 memfile_T *mfp, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4777 char_u *data, |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4778 off_T offset, |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4779 unsigned size) |
| 2267 | 4780 { |
| 4781 DATA_BL *dp = (DATA_BL *)data; | |
| 4782 char_u *head_end; | |
| 4783 char_u *text_start; | |
| 4784 char_u *new_data; | |
| 4785 int text_len; | |
| 6122 | 4786 cryptstate_T *state; |
| 2267 | 4787 |
| 4788 if (dp->db_id != DATA_ID) | |
| 4789 return data; | |
| 4790 | |
| 6817 | 4791 state = ml_crypt_prepare(mfp, offset, FALSE); |
| 4792 if (state == NULL) | |
| 4793 return data; | |
| 4794 | |
| 2267 | 4795 new_data = (char_u *)alloc(size); |
| 4796 if (new_data == NULL) | |
| 4797 return NULL; | |
| 4798 head_end = (char_u *)(&dp->db_index[dp->db_line_count]); | |
| 4799 text_start = (char_u *)dp + dp->db_txt_start; | |
| 4800 text_len = size - dp->db_txt_start; | |
| 4801 | |
| 4802 /* Copy the header and the text. */ | |
| 4803 mch_memmove(new_data, dp, head_end - (char_u *)dp); | |
| 4804 | |
| 4805 /* Encrypt the text. */ | |
| 6122 | 4806 crypt_encode(state, text_start, text_len, new_data + dp->db_txt_start); |
| 4807 crypt_free_state(state); | |
| 2267 | 4808 |
| 4809 /* Clear the gap. */ | |
| 4810 if (head_end < text_start) | |
| 4811 vim_memset(new_data + (head_end - data), 0, text_start - head_end); | |
| 4812 | |
| 4813 return new_data; | |
| 4814 } | |
| 4815 | |
| 4816 /* | |
| 6817 | 4817 * Decrypt the text in "data" if it points to an encrypted data block. |
| 2267 | 4818 */ |
| 4819 void | |
|
7827
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4820 ml_decrypt_data( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4821 memfile_T *mfp, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4822 char_u *data, |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4823 off_T offset, |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4824 unsigned size) |
| 2267 | 4825 { |
| 4826 DATA_BL *dp = (DATA_BL *)data; | |
| 4827 char_u *head_end; | |
| 4828 char_u *text_start; | |
| 4829 int text_len; | |
| 6122 | 4830 cryptstate_T *state; |
| 2267 | 4831 |
| 4832 if (dp->db_id == DATA_ID) | |
| 4833 { | |
| 4834 head_end = (char_u *)(&dp->db_index[dp->db_line_count]); | |
| 4835 text_start = (char_u *)dp + dp->db_txt_start; | |
| 4836 text_len = dp->db_txt_end - dp->db_txt_start; | |
| 4837 | |
| 4838 if (head_end > text_start || dp->db_txt_start > size | |
| 4839 || dp->db_txt_end > size) | |
| 4840 return; /* data was messed up */ | |
| 4841 | |
| 6122 | 4842 state = ml_crypt_prepare(mfp, offset, TRUE); |
| 6817 | 4843 if (state != NULL) |
| 4844 { | |
| 4845 /* Decrypt the text in place. */ | |
| 4846 crypt_decode_inplace(state, text_start, text_len); | |
| 4847 crypt_free_state(state); | |
| 4848 } | |
| 2267 | 4849 } |
| 4850 } | |
| 4851 | |
| 4852 /* | |
| 4853 * Prepare for encryption/decryption, using the key, seed and offset. | |
| 6122 | 4854 * Return an allocated cryptstate_T *. |
| 2267 | 4855 */ |
| 6122 | 4856 static cryptstate_T * |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4857 ml_crypt_prepare(memfile_T *mfp, off_T offset, int reading) |
| 2267 | 4858 { |
| 4859 buf_T *buf = mfp->mf_buffer; | |
| 4860 char_u salt[50]; | |
| 6122 | 4861 int method_nr; |
| 2267 | 4862 char_u *key; |
| 4863 char_u *seed; | |
| 4864 | |
| 4865 if (reading && mfp->mf_old_key != NULL) | |
| 4866 { | |
| 4867 /* Reading back blocks with the previous key/method/seed. */ | |
| 6122 | 4868 method_nr = mfp->mf_old_cm; |
| 2267 | 4869 key = mfp->mf_old_key; |
| 4870 seed = mfp->mf_old_seed; | |
| 4871 } | |
| 4872 else | |
| 4873 { | |
| 6122 | 4874 method_nr = crypt_get_method_nr(buf); |
| 2267 | 4875 key = buf->b_p_key; |
| 4876 seed = mfp->mf_seed; | |
| 4877 } | |
| 6817 | 4878 if (*key == NUL) |
| 4879 return NULL; | |
| 2267 | 4880 |
| 6122 | 4881 if (method_nr == CRYPT_M_ZIP) |
| 2267 | 4882 { |
| 6122 | 4883 /* For PKzip: Append the offset to the key, so that we use a different |
| 4884 * key for every block. */ | |
| 2267 | 4885 vim_snprintf((char *)salt, sizeof(salt), "%s%ld", key, (long)offset); |
| 6122 | 4886 return crypt_create(method_nr, salt, NULL, 0, NULL, 0); |
| 2267 | 4887 } |
| 6122 | 4888 |
| 4889 /* Using blowfish or better: add salt and seed. We use the byte offset | |
| 4890 * of the block for the salt. */ | |
| 4891 vim_snprintf((char *)salt, sizeof(salt), "%ld", (long)offset); | |
| 4892 return crypt_create(method_nr, key, salt, (int)STRLEN(salt), | |
| 4893 seed, MF_SEED_LEN); | |
| 2267 | 4894 } |
| 4895 | |
| 4896 #endif | |
| 4897 | |
| 4898 | |
| 7 | 4899 #if defined(FEAT_BYTEOFF) || defined(PROTO) |
| 4900 | |
| 4901 #define MLCS_MAXL 800 /* max no of lines in chunk */ | |
| 4902 #define MLCS_MINL 400 /* should be half of MLCS_MAXL */ | |
| 4903 | |
| 4904 /* | |
|
2407
6bc102a4bff8
Fix memory access to 'cryptmethod' during recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2394
diff
changeset
|
4905 * Keep information for finding byte offset of a line, updtype may be one of: |
| 7 | 4906 * ML_CHNK_ADDLINE: Add len to parent chunk, possibly splitting it |
| 4907 * Careful: ML_CHNK_ADDLINE may cause ml_find_line() to be called. | |
| 4908 * ML_CHNK_DELLINE: Subtract len from parent chunk, possibly deleting it | |
| 4909 * ML_CHNK_UPDLINE: Add len to parent chunk, as a signed entity. | |
| 4910 */ | |
| 4911 static void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4912 ml_updatechunk( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4913 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4914 linenr_T line, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4915 long len, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4916 int updtype) |
| 7 | 4917 { |
| 4918 static buf_T *ml_upd_lastbuf = NULL; | |
| 4919 static linenr_T ml_upd_lastline; | |
| 4920 static linenr_T ml_upd_lastcurline; | |
| 4921 static int ml_upd_lastcurix; | |
| 4922 | |
| 4923 linenr_T curline = ml_upd_lastcurline; | |
| 4924 int curix = ml_upd_lastcurix; | |
| 4925 long size; | |
| 4926 chunksize_T *curchnk; | |
| 4927 int rest; | |
| 4928 bhdr_T *hp; | |
| 4929 DATA_BL *dp; | |
| 4930 | |
| 4931 if (buf->b_ml.ml_usedchunks == -1 || len == 0) | |
| 4932 return; | |
| 4933 if (buf->b_ml.ml_chunksize == NULL) | |
| 4934 { | |
| 4935 buf->b_ml.ml_chunksize = (chunksize_T *) | |
| 4936 alloc((unsigned)sizeof(chunksize_T) * 100); | |
| 4937 if (buf->b_ml.ml_chunksize == NULL) | |
| 4938 { | |
| 4939 buf->b_ml.ml_usedchunks = -1; | |
| 4940 return; | |
| 4941 } | |
| 4942 buf->b_ml.ml_numchunks = 100; | |
| 4943 buf->b_ml.ml_usedchunks = 1; | |
| 4944 buf->b_ml.ml_chunksize[0].mlcs_numlines = 1; | |
| 4945 buf->b_ml.ml_chunksize[0].mlcs_totalsize = 1; | |
| 4946 } | |
| 4947 | |
| 4948 if (updtype == ML_CHNK_UPDLINE && buf->b_ml.ml_line_count == 1) | |
| 4949 { | |
| 4950 /* | |
| 4951 * First line in empty buffer from ml_flush_line() -- reset | |
| 4952 */ | |
| 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 = | |
| 4956 (long)STRLEN(buf->b_ml.ml_line_ptr) + 1; | |
| 4957 return; | |
| 4958 } | |
| 4959 | |
| 4960 /* | |
| 4961 * Find chunk that our line belongs to, curline will be at start of the | |
| 4962 * chunk. | |
| 4963 */ | |
| 4964 if (buf != ml_upd_lastbuf || line != ml_upd_lastline + 1 | |
| 4965 || updtype != ML_CHNK_ADDLINE) | |
| 4966 { | |
| 4967 for (curline = 1, curix = 0; | |
| 4968 curix < buf->b_ml.ml_usedchunks - 1 | |
| 4969 && line >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 4970 curix++) | |
| 4971 { | |
| 4972 curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 4973 } | |
| 4974 } | |
| 4975 else if (line >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines | |
| 4976 && curix < buf->b_ml.ml_usedchunks - 1) | |
| 4977 { | |
| 4978 /* Adjust cached curix & curline */ | |
| 4979 curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 4980 curix++; | |
| 4981 } | |
| 4982 curchnk = buf->b_ml.ml_chunksize + curix; | |
| 4983 | |
| 4984 if (updtype == ML_CHNK_DELLINE) | |
| 1030 | 4985 len = -len; |
| 7 | 4986 curchnk->mlcs_totalsize += len; |
| 4987 if (updtype == ML_CHNK_ADDLINE) | |
| 4988 { | |
| 4989 curchnk->mlcs_numlines++; | |
| 4990 | |
| 4991 /* May resize here so we don't have to do it in both cases below */ | |
| 4992 if (buf->b_ml.ml_usedchunks + 1 >= buf->b_ml.ml_numchunks) | |
| 4993 { | |
| 6596 | 4994 chunksize_T *t_chunksize = buf->b_ml.ml_chunksize; |
| 4995 | |
| 7 | 4996 buf->b_ml.ml_numchunks = buf->b_ml.ml_numchunks * 3 / 2; |
| 4997 buf->b_ml.ml_chunksize = (chunksize_T *) | |
| 4998 vim_realloc(buf->b_ml.ml_chunksize, | |
| 4999 sizeof(chunksize_T) * buf->b_ml.ml_numchunks); | |
| 5000 if (buf->b_ml.ml_chunksize == NULL) | |
| 5001 { | |
| 5002 /* Hmmmm, Give up on offset for this buffer */ | |
| 6596 | 5003 vim_free(t_chunksize); |
| 7 | 5004 buf->b_ml.ml_usedchunks = -1; |
| 5005 return; | |
| 5006 } | |
| 5007 } | |
| 5008 | |
| 5009 if (buf->b_ml.ml_chunksize[curix].mlcs_numlines >= MLCS_MAXL) | |
| 5010 { | |
| 5011 int count; /* number of entries in block */ | |
| 5012 int idx; | |
| 5013 int text_end; | |
| 5014 int linecnt; | |
| 5015 | |
| 5016 mch_memmove(buf->b_ml.ml_chunksize + curix + 1, | |
| 5017 buf->b_ml.ml_chunksize + curix, | |
| 5018 (buf->b_ml.ml_usedchunks - curix) * | |
| 5019 sizeof(chunksize_T)); | |
| 1855 | 5020 /* Compute length of first half of lines in the split chunk */ |
| 7 | 5021 size = 0; |
| 5022 linecnt = 0; | |
| 5023 while (curline < buf->b_ml.ml_line_count | |
| 5024 && linecnt < MLCS_MINL) | |
| 5025 { | |
| 5026 if ((hp = ml_find_line(buf, curline, ML_FIND)) == NULL) | |
| 5027 { | |
| 5028 buf->b_ml.ml_usedchunks = -1; | |
| 5029 return; | |
| 5030 } | |
| 5031 dp = (DATA_BL *)(hp->bh_data); | |
| 5032 count = (long)(buf->b_ml.ml_locked_high) - | |
| 5033 (long)(buf->b_ml.ml_locked_low) + 1; | |
| 5034 idx = curline - buf->b_ml.ml_locked_low; | |
| 5035 curline = buf->b_ml.ml_locked_high + 1; | |
| 5036 if (idx == 0)/* first line in block, text at the end */ | |
| 5037 text_end = dp->db_txt_end; | |
| 5038 else | |
| 5039 text_end = ((dp->db_index[idx - 1]) & DB_INDEX_MASK); | |
| 5040 /* Compute index of last line to use in this MEMLINE */ | |
| 5041 rest = count - idx; | |
| 5042 if (linecnt + rest > MLCS_MINL) | |
| 5043 { | |
| 5044 idx += MLCS_MINL - linecnt - 1; | |
| 5045 linecnt = MLCS_MINL; | |
| 5046 } | |
| 5047 else | |
| 5048 { | |
| 5049 idx = count - 1; | |
| 5050 linecnt += rest; | |
| 5051 } | |
| 5052 size += text_end - ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 5053 } | |
| 5054 buf->b_ml.ml_chunksize[curix].mlcs_numlines = linecnt; | |
| 5055 buf->b_ml.ml_chunksize[curix + 1].mlcs_numlines -= linecnt; | |
| 5056 buf->b_ml.ml_chunksize[curix].mlcs_totalsize = size; | |
| 5057 buf->b_ml.ml_chunksize[curix + 1].mlcs_totalsize -= size; | |
| 5058 buf->b_ml.ml_usedchunks++; | |
| 5059 ml_upd_lastbuf = NULL; /* Force recalc of curix & curline */ | |
| 5060 return; | |
| 5061 } | |
| 5062 else if (buf->b_ml.ml_chunksize[curix].mlcs_numlines >= MLCS_MINL | |
| 5063 && curix == buf->b_ml.ml_usedchunks - 1 | |
| 5064 && buf->b_ml.ml_line_count - line <= 1) | |
| 5065 { | |
| 5066 /* | |
| 5067 * We are in the last chunk and it is cheap to crate a new one | |
| 5068 * after this. Do it now to avoid the loop above later on | |
| 5069 */ | |
| 5070 curchnk = buf->b_ml.ml_chunksize + curix + 1; | |
| 5071 buf->b_ml.ml_usedchunks++; | |
| 5072 if (line == buf->b_ml.ml_line_count) | |
| 5073 { | |
| 5074 curchnk->mlcs_numlines = 0; | |
| 5075 curchnk->mlcs_totalsize = 0; | |
| 5076 } | |
| 5077 else | |
| 5078 { | |
| 5079 /* | |
| 5080 * Line is just prior to last, move count for last | |
| 5081 * This is the common case when loading a new file | |
| 5082 */ | |
| 5083 hp = ml_find_line(buf, buf->b_ml.ml_line_count, ML_FIND); | |
| 5084 if (hp == NULL) | |
| 5085 { | |
| 5086 buf->b_ml.ml_usedchunks = -1; | |
| 5087 return; | |
| 5088 } | |
| 5089 dp = (DATA_BL *)(hp->bh_data); | |
| 5090 if (dp->db_line_count == 1) | |
| 5091 rest = dp->db_txt_end - dp->db_txt_start; | |
| 5092 else | |
| 5093 rest = | |
| 5094 ((dp->db_index[dp->db_line_count - 2]) & DB_INDEX_MASK) | |
| 5095 - dp->db_txt_start; | |
| 5096 curchnk->mlcs_totalsize = rest; | |
| 5097 curchnk->mlcs_numlines = 1; | |
| 5098 curchnk[-1].mlcs_totalsize -= rest; | |
| 5099 curchnk[-1].mlcs_numlines -= 1; | |
| 5100 } | |
| 5101 } | |
| 5102 } | |
| 5103 else if (updtype == ML_CHNK_DELLINE) | |
| 5104 { | |
| 5105 curchnk->mlcs_numlines--; | |
| 5106 ml_upd_lastbuf = NULL; /* Force recalc of curix & curline */ | |
| 5107 if (curix < (buf->b_ml.ml_usedchunks - 1) | |
| 5108 && (curchnk->mlcs_numlines + curchnk[1].mlcs_numlines) | |
| 5109 <= MLCS_MINL) | |
| 5110 { | |
| 5111 curix++; | |
| 5112 curchnk = buf->b_ml.ml_chunksize + curix; | |
| 5113 } | |
| 5114 else if (curix == 0 && curchnk->mlcs_numlines <= 0) | |
| 5115 { | |
| 5116 buf->b_ml.ml_usedchunks--; | |
| 5117 mch_memmove(buf->b_ml.ml_chunksize, buf->b_ml.ml_chunksize + 1, | |
| 5118 buf->b_ml.ml_usedchunks * sizeof(chunksize_T)); | |
| 5119 return; | |
| 5120 } | |
| 5121 else if (curix == 0 || (curchnk->mlcs_numlines > 10 | |
| 5122 && (curchnk->mlcs_numlines + curchnk[-1].mlcs_numlines) | |
| 5123 > MLCS_MINL)) | |
| 5124 { | |
| 5125 return; | |
| 5126 } | |
| 5127 | |
| 5128 /* Collapse chunks */ | |
| 5129 curchnk[-1].mlcs_numlines += curchnk->mlcs_numlines; | |
| 5130 curchnk[-1].mlcs_totalsize += curchnk->mlcs_totalsize; | |
| 5131 buf->b_ml.ml_usedchunks--; | |
| 5132 if (curix < buf->b_ml.ml_usedchunks) | |
| 5133 { | |
| 5134 mch_memmove(buf->b_ml.ml_chunksize + curix, | |
| 5135 buf->b_ml.ml_chunksize + curix + 1, | |
| 5136 (buf->b_ml.ml_usedchunks - curix) * | |
| 5137 sizeof(chunksize_T)); | |
| 5138 } | |
| 5139 return; | |
| 5140 } | |
| 5141 ml_upd_lastbuf = buf; | |
| 5142 ml_upd_lastline = line; | |
| 5143 ml_upd_lastcurline = curline; | |
| 5144 ml_upd_lastcurix = curix; | |
| 5145 } | |
| 5146 | |
| 5147 /* | |
| 5148 * Find offset for line or line with offset. | |
| 169 | 5149 * Find line with offset if "lnum" is 0; return remaining offset in offp |
| 5150 * Find offset of line if "lnum" > 0 | |
| 7 | 5151 * return -1 if information is not available |
| 5152 */ | |
| 5153 long | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
5154 ml_find_line_or_offset(buf_T *buf, linenr_T lnum, long *offp) |
| 7 | 5155 { |
| 5156 linenr_T curline; | |
| 5157 int curix; | |
| 5158 long size; | |
| 5159 bhdr_T *hp; | |
| 5160 DATA_BL *dp; | |
| 5161 int count; /* number of entries in block */ | |
| 5162 int idx; | |
| 5163 int start_idx; | |
| 5164 int text_end; | |
| 5165 long offset; | |
| 5166 int len; | |
| 5167 int ffdos = (get_fileformat(buf) == EOL_DOS); | |
| 5168 int extra = 0; | |
| 5169 | |
| 169 | 5170 /* take care of cached line first */ |
| 5171 ml_flush_line(curbuf); | |
| 5172 | |
| 7 | 5173 if (buf->b_ml.ml_usedchunks == -1 |
| 5174 || buf->b_ml.ml_chunksize == NULL | |
| 169 | 5175 || lnum < 0) |
| 7 | 5176 return -1; |
| 5177 | |
| 5178 if (offp == NULL) | |
| 5179 offset = 0; | |
| 5180 else | |
| 5181 offset = *offp; | |
| 169 | 5182 if (lnum == 0 && offset <= 0) |
| 7 | 5183 return 1; /* Not a "find offset" and offset 0 _must_ be in line 1 */ |
| 5184 /* | |
| 5185 * Find the last chunk before the one containing our line. Last chunk is | |
| 5186 * special because it will never qualify | |
| 5187 */ | |
| 5188 curline = 1; | |
| 5189 curix = size = 0; | |
| 5190 while (curix < buf->b_ml.ml_usedchunks - 1 | |
| 169 | 5191 && ((lnum != 0 |
| 5192 && lnum >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines) | |
| 7 | 5193 || (offset != 0 |
| 5194 && offset > size + buf->b_ml.ml_chunksize[curix].mlcs_totalsize | |
| 5195 + ffdos * buf->b_ml.ml_chunksize[curix].mlcs_numlines))) | |
| 5196 { | |
| 5197 curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5198 size += buf->b_ml.ml_chunksize[curix].mlcs_totalsize; | |
| 5199 if (offset && ffdos) | |
| 5200 size += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5201 curix++; | |
| 5202 } | |
| 5203 | |
| 169 | 5204 while ((lnum != 0 && curline < lnum) || (offset != 0 && size < offset)) |
| 7 | 5205 { |
| 5206 if (curline > buf->b_ml.ml_line_count | |
| 5207 || (hp = ml_find_line(buf, curline, ML_FIND)) == NULL) | |
| 5208 return -1; | |
| 5209 dp = (DATA_BL *)(hp->bh_data); | |
| 5210 count = (long)(buf->b_ml.ml_locked_high) - | |
| 5211 (long)(buf->b_ml.ml_locked_low) + 1; | |
| 5212 start_idx = idx = curline - buf->b_ml.ml_locked_low; | |
| 5213 if (idx == 0)/* first line in block, text at the end */ | |
| 5214 text_end = dp->db_txt_end; | |
| 5215 else | |
| 5216 text_end = ((dp->db_index[idx - 1]) & DB_INDEX_MASK); | |
| 5217 /* Compute index of last line to use in this MEMLINE */ | |
| 169 | 5218 if (lnum != 0) |
| 7 | 5219 { |
| 169 | 5220 if (curline + (count - idx) >= lnum) |
| 5221 idx += lnum - curline - 1; | |
| 7 | 5222 else |
| 5223 idx = count - 1; | |
| 5224 } | |
| 5225 else | |
| 5226 { | |
| 5227 extra = 0; | |
| 5228 while (offset >= size | |
| 5229 + text_end - (int)((dp->db_index[idx]) & DB_INDEX_MASK) | |
| 5230 + ffdos) | |
| 5231 { | |
| 5232 if (ffdos) | |
| 5233 size++; | |
| 5234 if (idx == count - 1) | |
| 5235 { | |
| 5236 extra = 1; | |
| 5237 break; | |
| 5238 } | |
| 5239 idx++; | |
| 5240 } | |
| 5241 } | |
| 5242 len = text_end - ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 5243 size += len; | |
| 5244 if (offset != 0 && size >= offset) | |
| 5245 { | |
| 5246 if (size + ffdos == offset) | |
| 5247 *offp = 0; | |
| 5248 else if (idx == start_idx) | |
| 5249 *offp = offset - size + len; | |
| 5250 else | |
| 5251 *offp = offset - size + len | |
| 5252 - (text_end - ((dp->db_index[idx - 1]) & DB_INDEX_MASK)); | |
| 5253 curline += idx - start_idx + extra; | |
| 5254 if (curline > buf->b_ml.ml_line_count) | |
| 5255 return -1; /* exactly one byte beyond the end */ | |
| 5256 return curline; | |
| 5257 } | |
| 5258 curline = buf->b_ml.ml_locked_high + 1; | |
| 5259 } | |
| 5260 | |
| 169 | 5261 if (lnum != 0) |
| 20 | 5262 { |
| 5263 /* Count extra CR characters. */ | |
| 5264 if (ffdos) | |
| 169 | 5265 size += lnum - 1; |
| 20 | 5266 |
| 6933 | 5267 /* Don't count the last line break if 'noeol' and ('bin' or |
| 5268 * 'nofixeol'). */ | |
| 5269 if ((!buf->b_p_fixeol || buf->b_p_bin) && !buf->b_p_eol | |
| 5270 && buf->b_ml.ml_line_count == lnum) | |
| 20 | 5271 size -= ffdos + 1; |
| 5272 } | |
| 5273 | |
| 7 | 5274 return size; |
| 5275 } | |
| 5276 | |
| 5277 /* | |
| 5278 * Goto byte in buffer with offset 'cnt'. | |
| 5279 */ | |
| 5280 void | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
5281 goto_byte(long cnt) |
| 7 | 5282 { |
| 5283 long boff = cnt; | |
| 5284 linenr_T lnum; | |
| 5285 | |
| 5286 ml_flush_line(curbuf); /* cached line may be dirty */ | |
| 5287 setpcmark(); | |
| 5288 if (boff) | |
| 5289 --boff; | |
| 5290 lnum = ml_find_line_or_offset(curbuf, (linenr_T)0, &boff); | |
| 5291 if (lnum < 1) /* past the end */ | |
| 5292 { | |
| 5293 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count; | |
| 5294 curwin->w_curswant = MAXCOL; | |
| 5295 coladvance((colnr_T)MAXCOL); | |
| 5296 } | |
| 5297 else | |
| 5298 { | |
| 5299 curwin->w_cursor.lnum = lnum; | |
| 5300 curwin->w_cursor.col = (colnr_T)boff; | |
| 572 | 5301 # ifdef FEAT_VIRTUALEDIT |
| 5302 curwin->w_cursor.coladd = 0; | |
| 5303 # endif | |
| 7 | 5304 curwin->w_set_curswant = TRUE; |
| 5305 } | |
| 5306 check_cursor(); | |
| 5307 | |
| 5308 # ifdef FEAT_MBYTE | |
| 5309 /* Make sure the cursor is on the first byte of a multi-byte char. */ | |
| 5310 if (has_mbyte) | |
| 5311 mb_adjust_cursor(); | |
| 5312 # endif | |
| 5313 } | |
| 5314 #endif |