1 /* vi:set ts=8 sts=4 sw=4 noet: 2 * 3 * CSCOPE support for Vim added by Andy Kahn <[email protected]> 4 * Ported to Win32 by Sergey Khorev <[email protected]> 5 * 6 * The basic idea/structure of cscope for Vim was borrowed from Nvi. There 7 * might be a few lines of code that look similar to what Nvi has. 8 * 9 * See README.txt for an overview of the Vim source code. 10 */ 11 12 #include "vim.h" 13 14 #if defined(FEAT_CSCOPE) || defined(PROTO) 15 16 #include <sys/types.h> 17 #include <sys/stat.h> 18 #if defined(UNIX) 19 # include <sys/wait.h> 20 #endif 21 #include "if_cscope.h" 22 23 static void cs_usage_msg(csid_e x); 24 static int cs_add(exarg_T *eap); 25 static void cs_stat_emsg(char *fname); 26 static int cs_add_common(char *, char *, char *); 27 static int cs_check_for_connections(void); 28 static int cs_check_for_tags(void); 29 static int cs_cnt_connections(void); 30 static void cs_reading_emsg(int idx); 31 static int cs_cnt_matches(int idx); 32 static char * cs_create_cmd(char *csoption, char *pattern); 33 static int cs_create_connection(int i); 34 static void do_cscope_general(exarg_T *eap, int make_split); 35 #ifdef FEAT_QUICKFIX 36 static void cs_file_results(FILE *, int *); 37 #endif 38 static void cs_fill_results(char *, int , int *, char ***, 39 char ***, int *); 40 static int cs_find(exarg_T *eap); 41 static int cs_find_common(char *opt, char *pat, int, int, int, char_u *cmdline); 42 static int cs_help(exarg_T *eap); 43 static void clear_csinfo(int i); 44 static int cs_insert_filelist(char *, char *, char *, 45 stat_T *); 46 static int cs_kill(exarg_T *eap); 47 static void cs_kill_execute(int, char *); 48 static cscmd_T * cs_lookup_cmd(exarg_T *eap); 49 static char * cs_make_vim_style_matches(char *, char *, 50 char *, char *); 51 static char * cs_manage_matches(char **, char **, int, mcmd_e); 52 static char * cs_parse_results(int cnumber, char *buf, int bufsize, char **context, char **linenumber, char **search); 53 static char * cs_pathcomponents(char *path); 54 static void cs_print_tags_priv(char **, char **, int); 55 static int cs_read_prompt(int); 56 static void cs_release_csp(int, int freefnpp); 57 static int cs_reset(exarg_T *eap); 58 static char * cs_resolve_file(int, char *); 59 static int cs_show(exarg_T *eap); 60 61 62 static csinfo_T * csinfo = NULL; 63 static int csinfo_size = 0; /* number of items allocated in 64 csinfo[] */ 65 66 static int eap_arg_len; /* length of eap->arg, set in 67 cs_lookup_cmd() */ 68 static cscmd_T cs_cmds[] = 69 { 70 { "add", cs_add, 71 N_("Add a new database"), "add file|dir [pre-path] [flags]", 0 }, 72 { "find", cs_find, 73 N_("Query for a pattern"), "find a|c|d|e|f|g|i|s|t name", 1 }, 74 { "help", cs_help, 75 N_("Show this message"), "help", 0 }, 76 { "kill", cs_kill, 77 N_("Kill a connection"), "kill #", 0 }, 78 { "reset", cs_reset, 79 N_("Reinit all connections"), "reset", 0 }, 80 { "show", cs_show, 81 N_("Show connections"), "show", 0 }, 82 { NULL, NULL, NULL, NULL, 0 } 83 }; 84 85 static void 86 cs_usage_msg(csid_e x) 87 { 88 (void)EMSG2(_("E560: Usage: cs[cope] %s"), cs_cmds[(int)x].usage); 89 } 90 91 #if defined(FEAT_CMDL_COMPL) || defined(PROTO) 92 93 static enum 94 { 95 EXP_CSCOPE_SUBCMD, /* expand ":cscope" sub-commands */ 96 EXP_SCSCOPE_SUBCMD, /* expand ":scscope" sub-commands */ 97 EXP_CSCOPE_FIND, /* expand ":cscope find" arguments */ 98 EXP_CSCOPE_KILL /* expand ":cscope kill" arguments */ 99 } expand_what; 100 101 /* 102 * Function given to ExpandGeneric() to obtain the cscope command 103 * expansion. 104 */ 105 char_u * 106 get_cscope_name(expand_T *xp UNUSED, int idx) 107 { 108 int current_idx; 109 int i; 110 111 switch (expand_what) 112 { 113 case EXP_CSCOPE_SUBCMD: 114 /* Complete with sub-commands of ":cscope": 115 * add, find, help, kill, reset, show */ 116 return (char_u *)cs_cmds[idx].name; 117 case EXP_SCSCOPE_SUBCMD: 118 /* Complete with sub-commands of ":scscope": same sub-commands as 119 * ":cscope" but skip commands which don't support split windows */ 120 for (i = 0, current_idx = 0; cs_cmds[i].name != NULL; i++) 121 if (cs_cmds[i].cansplit) 122 if (current_idx++ == idx) 123 break; 124 return (char_u *)cs_cmds[i].name; 125 case EXP_CSCOPE_FIND: 126 { 127 const char *query_type[] = 128 { 129 "a", "c", "d", "e", "f", "g", "i", "s", "t", NULL 130 }; 131 132 /* Complete with query type of ":cscope find {query_type}". 133 * {query_type} can be letters (c, d, ... a) or numbers (0, 1, 134 * ..., 9) but only complete with letters, since numbers are 135 * redundant. */ 136 return (char_u *)query_type[idx]; 137 } 138 case EXP_CSCOPE_KILL: 139 { 140 static char connection[5]; 141 142 /* ":cscope kill" accepts connection numbers or partial names of 143 * the pathname of the cscope database as argument. Only complete 144 * with connection numbers. -1 can also be used to kill all 145 * connections. */ 146 for (i = 0, current_idx = 0; i < csinfo_size; i++) 147 { 148 if (csinfo[i].fname == NULL) 149 continue; 150 if (current_idx++ == idx) 151 { 152 vim_snprintf(connection, sizeof(connection), "%d", i); 153 return (char_u *)connection; 154 } 155 } 156 return (current_idx == idx && idx > 0) ? (char_u *)"-1" : NULL; 157 } 158 default: 159 return NULL; 160 } 161 } 162 163 /* 164 * Handle command line completion for :cscope command. 165 */ 166 void 167 set_context_in_cscope_cmd( 168 expand_T *xp, 169 char_u *arg, 170 cmdidx_T cmdidx) 171 { 172 char_u *p; 173 174 /* Default: expand subcommands */ 175 xp->xp_context = EXPAND_CSCOPE; 176 xp->xp_pattern = arg; 177 expand_what = (cmdidx == CMD_scscope) 178 ? EXP_SCSCOPE_SUBCMD : EXP_CSCOPE_SUBCMD; 179 180 /* (part of) subcommand already typed */ 181 if (*arg != NUL) 182 { 183 p = skiptowhite(arg); 184 if (*p != NUL) /* past first word */ 185 { 186 xp->xp_pattern = skipwhite(p); 187 if (*skiptowhite(xp->xp_pattern) != NUL) 188 xp->xp_context = EXPAND_NOTHING; 189 else if (STRNICMP(arg, "add", p - arg) == 0) 190 xp->xp_context = EXPAND_FILES; 191 else if (STRNICMP(arg, "kill", p - arg) == 0) 192 expand_what = EXP_CSCOPE_KILL; 193 else if (STRNICMP(arg, "find", p - arg) == 0) 194 expand_what = EXP_CSCOPE_FIND; 195 else 196 xp->xp_context = EXPAND_NOTHING; 197 } 198 } 199 } 200 201 #endif /* FEAT_CMDL_COMPL */ 202 203 /* 204 * Find the command, print help if invalid, and then call the corresponding 205 * command function. 206 */ 207 static void 208 do_cscope_general( 209 exarg_T *eap, 210 int make_split UNUSED) /* whether to split window */ 211 { 212 cscmd_T *cmdp; 213 214 if ((cmdp = cs_lookup_cmd(eap)) == NULL) 215 { 216 cs_help(eap); 217 return; 218 } 219 220 if (make_split) 221 { 222 if (!cmdp->cansplit) 223 { 224 (void)MSG_PUTS(_("This cscope command does not support splitting the window.\n")); 225 return; 226 } 227 postponed_split = -1; 228 postponed_split_flags = cmdmod.split; 229 postponed_split_tab = cmdmod.tab; 230 } 231 232 cmdp->func(eap); 233 234 postponed_split_flags = 0; 235 postponed_split_tab = 0; 236 } 237 238 /* 239 * Implementation of ":cscope" and ":lcscope" 240 */ 241 void 242 ex_cscope(exarg_T *eap) 243 { 244 do_cscope_general(eap, FALSE); 245 } 246 247 /* 248 * Implementation of ":scscope". Same as ex_cscope(), but splits window, too. 249 */ 250 void 251 ex_scscope(exarg_T *eap) 252 { 253 do_cscope_general(eap, TRUE); 254 } 255 256 /* 257 * Implementation of ":cstag" 258 */ 259 void 260 ex_cstag(exarg_T *eap) 261 { 262 int ret = FALSE; 263 264 if (*eap->arg == NUL) 265 { 266 (void)EMSG(_("E562: Usage: cstag <ident>")); 267 return; 268 } 269 270 switch (p_csto) 271 { 272 case 0 : 273 if (cs_check_for_connections()) 274 { 275 ret = cs_find_common("g", (char *)(eap->arg), eap->forceit, FALSE, 276 FALSE, *eap->cmdlinep); 277 if (ret == FALSE) 278 { 279 cs_free_tags(); 280 if (msg_col) 281 msg_putchar('\n'); 282 283 if (cs_check_for_tags()) 284 ret = do_tag(eap->arg, DT_JUMP, 0, eap->forceit, FALSE); 285 } 286 } 287 else if (cs_check_for_tags()) 288 { 289 ret = do_tag(eap->arg, DT_JUMP, 0, eap->forceit, FALSE); 290 } 291 break; 292 case 1 : 293 if (cs_check_for_tags()) 294 { 295 ret = do_tag(eap->arg, DT_JUMP, 0, eap->forceit, FALSE); 296 if (ret == FALSE) 297 { 298 if (msg_col) 299 msg_putchar('\n'); 300 301 if (cs_check_for_connections()) 302 { 303 ret = cs_find_common("g", (char *)(eap->arg), eap->forceit, 304 FALSE, FALSE, *eap->cmdlinep); 305 if (ret == FALSE) 306 cs_free_tags(); 307 } 308 } 309 } 310 else if (cs_check_for_connections()) 311 { 312 ret = cs_find_common("g", (char *)(eap->arg), eap->forceit, FALSE, 313 FALSE, *eap->cmdlinep); 314 if (ret == FALSE) 315 cs_free_tags(); 316 } 317 break; 318 default : 319 break; 320 } 321 322 if (!ret) 323 { 324 (void)EMSG(_("E257: cstag: tag not found")); 325 #if defined(FEAT_QUICKFIX) 326 g_do_tagpreview = 0; 327 #endif 328 } 329 330 } 331 332 333 /* 334 * This simulates a vim_fgets(), but for cscope, returns the next line 335 * from the cscope output. should only be called from find_tags() 336 * 337 * returns TRUE if eof, FALSE otherwise 338 */ 339 int 340 cs_fgets(char_u *buf, int size) 341 { 342 char *p; 343 344 if ((p = cs_manage_matches(NULL, NULL, -1, Get)) == NULL) 345 return TRUE; 346 vim_strncpy(buf, (char_u *)p, size - 1); 347 348 return FALSE; 349 } /* cs_fgets */ 350 351 352 /* 353 * Called only from do_tag(), when popping the tag stack. 354 */ 355 void 356 cs_free_tags(void) 357 { 358 cs_manage_matches(NULL, NULL, -1, Free); 359 } 360 361 362 /* 363 * Called from do_tag(). 364 */ 365 void 366 cs_print_tags(void) 367 { 368 cs_manage_matches(NULL, NULL, -1, Print); 369 } 370 371 372 /* 373 * "cscope_connection([{num} , {dbpath} [, {prepend}]])" function 374 * 375 * Checks for the existence of a |cscope| connection. If no 376 * parameters are specified, then the function returns: 377 * 378 * 0, if cscope was not available (not compiled in), or if there 379 * are no cscope connections; or 380 * 1, if there is at least one cscope connection. 381 * 382 * If parameters are specified, then the value of {num} 383 * determines how existence of a cscope connection is checked: 384 * 385 * {num} Description of existence check 386 * ----- ------------------------------ 387 * 0 Same as no parameters (e.g., "cscope_connection()"). 388 * 1 Ignore {prepend}, and use partial string matches for 389 * {dbpath}. 390 * 2 Ignore {prepend}, and use exact string matches for 391 * {dbpath}. 392 * 3 Use {prepend}, use partial string matches for both 393 * {dbpath} and {prepend}. 394 * 4 Use {prepend}, use exact string matches for both 395 * {dbpath} and {prepend}. 396 * 397 * Note: All string comparisons are case sensitive! 398 */ 399 #if defined(FEAT_EVAL) || defined(PROTO) 400 int 401 cs_connection(int num, char_u *dbpath, char_u *ppath) 402 { 403 int i; 404 405 if (num < 0 || num > 4 || (num > 0 && !dbpath)) 406 return FALSE; 407 408 for (i = 0; i < csinfo_size; i++) 409 { 410 if (!csinfo[i].fname) 411 continue; 412 413 if (num == 0) 414 return TRUE; 415 416 switch (num) 417 { 418 case 1: 419 if (strstr(csinfo[i].fname, (char *)dbpath)) 420 return TRUE; 421 break; 422 case 2: 423 if (strcmp(csinfo[i].fname, (char *)dbpath) == 0) 424 return TRUE; 425 break; 426 case 3: 427 if (strstr(csinfo[i].fname, (char *)dbpath) 428 && ((!ppath && !csinfo[i].ppath) 429 || (ppath 430 && csinfo[i].ppath 431 && strstr(csinfo[i].ppath, (char *)ppath)))) 432 return TRUE; 433 break; 434 case 4: 435 if ((strcmp(csinfo[i].fname, (char *)dbpath) == 0) 436 && ((!ppath && !csinfo[i].ppath) 437 || (ppath 438 && csinfo[i].ppath 439 && (strcmp(csinfo[i].ppath, (char *)ppath) == 0)))) 440 return TRUE; 441 break; 442 } 443 } 444 445 return FALSE; 446 } /* cs_connection */ 447 #endif 448 449 450 /* 451 * PRIVATE functions 452 ****************************************************************************/ 453 454 /* 455 * Add cscope database or a directory name (to look for cscope.out) 456 * to the cscope connection list. 457 */ 458 static int 459 cs_add(exarg_T *eap UNUSED) 460 { 461 char *fname, *ppath, *flags = NULL; 462 463 if ((fname = strtok((char *)NULL, (const char *)" ")) == NULL) 464 { 465 cs_usage_msg(Add); 466 return CSCOPE_FAILURE; 467 } 468 if ((ppath = strtok((char *)NULL, (const char *)" ")) != NULL) 469 flags = strtok((char *)NULL, (const char *)" "); 470 471 return cs_add_common(fname, ppath, flags); 472 } 473 474 static void 475 cs_stat_emsg(char *fname) 476 { 477 char *stat_emsg = _("E563: stat(%s) error: %d"); 478 char *buf = (char *)alloc((unsigned)strlen(stat_emsg) + MAXPATHL + 10); 479 480 if (buf != NULL) 481 { 482 (void)sprintf(buf, stat_emsg, fname, errno); 483 (void)EMSG(buf); 484 vim_free(buf); 485 } 486 else 487 (void)EMSG(_("E563: stat error")); 488 } 489 490 491 /* 492 * The common routine to add a new cscope connection. Called by 493 * cs_add() and cs_reset(). I really don't like to do this, but this 494 * routine uses a number of goto statements. 495 */ 496 static int 497 cs_add_common( 498 char *arg1, /* filename - may contain environment variables */ 499 char *arg2, /* prepend path - may contain environment variables */ 500 char *flags) 501 { 502 stat_T statbuf; 503 int ret; 504 char *fname = NULL; 505 char *fname2 = NULL; 506 char *ppath = NULL; 507 int i; 508 #ifdef FEAT_MODIFY_FNAME 509 int len; 510 int usedlen = 0; 511 char_u *fbuf = NULL; 512 #endif 513 514 /* get the filename (arg1), expand it, and try to stat it */ 515 if ((fname = (char *)alloc(MAXPATHL + 1)) == NULL) 516 goto add_err; 517 518 expand_env((char_u *)arg1, (char_u *)fname, MAXPATHL); 519 #ifdef FEAT_MODIFY_FNAME 520 len = (int)STRLEN(fname); 521 fbuf = (char_u *)fname; 522 (void)modify_fname((char_u *)":p", &usedlen, 523 (char_u **)&fname, &fbuf, &len); 524 if (fname == NULL) 525 goto add_err; 526 fname = (char *)vim_strnsave((char_u *)fname, len); 527 vim_free(fbuf); 528 #endif 529 ret = mch_stat(fname, &statbuf); 530 if (ret < 0) 531 { 532 staterr: 533 if (p_csverbose) 534 cs_stat_emsg(fname); 535 goto add_err; 536 } 537 538 /* get the prepend path (arg2), expand it, and try to stat it */ 539 if (arg2 != NULL) 540 { 541 stat_T statbuf2; 542 543 if ((ppath = (char *)alloc(MAXPATHL + 1)) == NULL) 544 goto add_err; 545 546 expand_env((char_u *)arg2, (char_u *)ppath, MAXPATHL); 547 ret = mch_stat(ppath, &statbuf2); 548 if (ret < 0) 549 goto staterr; 550 } 551 552 /* if filename is a directory, append the cscope database name to it */ 553 if ((statbuf.st_mode & S_IFMT) == S_IFDIR) 554 { 555 fname2 = (char *)alloc((unsigned)(strlen(CSCOPE_DBFILE) + strlen(fname) + 2)); 556 if (fname2 == NULL) 557 goto add_err; 558 559 while (fname[strlen(fname)-1] == '/' 560 #ifdef WIN32 561 || fname[strlen(fname)-1] == '\\' 562 #endif 563 ) 564 { 565 fname[strlen(fname)-1] = '\0'; 566 if (fname[0] == '\0') 567 break; 568 } 569 if (fname[0] == '\0') 570 (void)sprintf(fname2, "/%s", CSCOPE_DBFILE); 571 else 572 (void)sprintf(fname2, "%s/%s", fname, CSCOPE_DBFILE); 573 574 ret = mch_stat(fname2, &statbuf); 575 if (ret < 0) 576 { 577 if (p_csverbose) 578 cs_stat_emsg(fname2); 579 goto add_err; 580 } 581 582 i = cs_insert_filelist(fname2, ppath, flags, &statbuf); 583 } 584 #if defined(UNIX) 585 else if (S_ISREG(statbuf.st_mode) || S_ISLNK(statbuf.st_mode)) 586 #else 587 /* WIN32 - substitute define S_ISREG from os_unix.h */ 588 else if (((statbuf.st_mode) & S_IFMT) == S_IFREG) 589 #endif 590 { 591 i = cs_insert_filelist(fname, ppath, flags, &statbuf); 592 } 593 else 594 { 595 if (p_csverbose) 596 (void)EMSG2( 597 _("E564: %s is not a directory or a valid cscope database"), 598 fname); 599 goto add_err; 600 } 601 602 if (i != -1) 603 { 604 if (cs_create_connection(i) == CSCOPE_FAILURE 605 || cs_read_prompt(i) == CSCOPE_FAILURE) 606 { 607 cs_release_csp(i, TRUE); 608 goto add_err; 609 } 610 611 if (p_csverbose) 612 { 613 msg_clr_eos(); 614 (void)smsg_attr(HL_ATTR(HLF_R), 615 (char_u *)_("Added cscope database %s"), 616 csinfo[i].fname); 617 } 618 } 619 620 vim_free(fname); 621 vim_free(fname2); 622 vim_free(ppath); 623 return CSCOPE_SUCCESS; 624 625 add_err: 626 vim_free(fname2); 627 vim_free(fname); 628 vim_free(ppath); 629 return CSCOPE_FAILURE; 630 } /* cs_add_common */ 631 632 633 static int 634 cs_check_for_connections(void) 635 { 636 return (cs_cnt_connections() > 0); 637 } /* cs_check_for_connections */ 638 639 640 static int 641 cs_check_for_tags(void) 642 { 643 return (p_tags[0] != NUL && curbuf->b_p_tags != NULL); 644 } /* cs_check_for_tags */ 645 646 647 /* 648 * Count the number of cscope connections. 649 */ 650 static int 651 cs_cnt_connections(void) 652 { 653 short i; 654 short cnt = 0; 655 656 for (i = 0; i < csinfo_size; i++) 657 { 658 if (csinfo[i].fname != NULL) 659 cnt++; 660 } 661 return cnt; 662 } /* cs_cnt_connections */ 663 664 static void 665 cs_reading_emsg( 666 int idx) /* connection index */ 667 { 668 EMSGN(_("E262: error reading cscope connection %ld"), idx); 669 } 670 671 #define CSREAD_BUFSIZE 2048 672 /* 673 * Count the number of matches for a given cscope connection. 674 */ 675 static int 676 cs_cnt_matches(int idx) 677 { 678 char *stok; 679 char *buf; 680 int nlines = 0; 681 682 buf = (char *)alloc(CSREAD_BUFSIZE); 683 if (buf == NULL) 684 return 0; 685 for (;;) 686 { 687 if (!fgets(buf, CSREAD_BUFSIZE, csinfo[idx].fr_fp)) 688 { 689 if (feof(csinfo[idx].fr_fp)) 690 errno = EIO; 691 692 cs_reading_emsg(idx); 693 694 vim_free(buf); 695 return -1; 696 } 697 698 /* 699 * If the database is out of date, or there's some other problem, 700 * cscope will output error messages before the number-of-lines output. 701 * Display/discard any output that doesn't match what we want. 702 * Accept "\S*cscope: X lines", also matches "mlcscope". 703 * Bail out for the "Unable to search" error. 704 */ 705 if (strstr((const char *)buf, "Unable to search database") != NULL) 706 break; 707 if ((stok = strtok(buf, (const char *)" ")) == NULL) 708 continue; 709 if (strstr((const char *)stok, "cscope:") == NULL) 710 continue; 711 712 if ((stok = strtok(NULL, (const char *)" ")) == NULL) 713 continue; 714 nlines = atoi(stok); 715 if (nlines < 0) 716 { 717 nlines = 0; 718 break; 719 } 720 721 if ((stok = strtok(NULL, (const char *)" ")) == NULL) 722 continue; 723 if (strncmp((const char *)stok, "lines", 5)) 724 continue; 725 726 break; 727 } 728 729 vim_free(buf); 730 return nlines; 731 } /* cs_cnt_matches */ 732 733 734 /* 735 * Creates the actual cscope command query from what the user entered. 736 */ 737 static char * 738 cs_create_cmd(char *csoption, char *pattern) 739 { 740 char *cmd; 741 short search; 742 char *pat; 743 744 switch (csoption[0]) 745 { 746 case '0' : case 's' : 747 search = 0; 748 break; 749 case '1' : case 'g' : 750 search = 1; 751 break; 752 case '2' : case 'd' : 753 search = 2; 754 break; 755 case '3' : case 'c' : 756 search = 3; 757 break; 758 case '4' : case 't' : 759 search = 4; 760 break; 761 case '6' : case 'e' : 762 search = 6; 763 break; 764 case '7' : case 'f' : 765 search = 7; 766 break; 767 case '8' : case 'i' : 768 search = 8; 769 break; 770 case '9' : case 'a' : 771 search = 9; 772 break; 773 default : 774 (void)EMSG(_("E561: unknown cscope search type")); 775 cs_usage_msg(Find); 776 return NULL; 777 } 778 779 /* Skip white space before the patter, except for text and pattern search, 780 * they may want to use the leading white space. */ 781 pat = pattern; 782 if (search != 4 && search != 6) 783 while VIM_ISWHITE(*pat) 784 ++pat; 785 786 if ((cmd = (char *)alloc((unsigned)(strlen(pat) + 2))) == NULL) 787 return NULL; 788 789 (void)sprintf(cmd, "%d%s", search, pat); 790 791 return cmd; 792 } /* cs_create_cmd */ 793 794 795 /* 796 * This piece of code was taken/adapted from nvi. do we need to add 797 * the BSD license notice? 798 */ 799 static int 800 cs_create_connection(int i) 801 { 802 #ifdef UNIX 803 int to_cs[2], from_cs[2]; 804 #endif 805 int len; 806 char *prog, *cmd, *ppath = NULL; 807 #ifdef WIN32 808 int fd; 809 SECURITY_ATTRIBUTES sa; 810 PROCESS_INFORMATION pi; 811 STARTUPINFO si; 812 BOOL pipe_stdin = FALSE, pipe_stdout = FALSE; 813 HANDLE stdin_rd, stdout_rd; 814 HANDLE stdout_wr, stdin_wr; 815 BOOL created; 816 # if (defined(_MSC_VER) && (_MSC_VER >= 1300)) || defined(__MINGW32__) 817 # define OPEN_OH_ARGTYPE intptr_t 818 # else 819 # define OPEN_OH_ARGTYPE long 820 # endif 821 #endif 822 823 #if defined(UNIX) 824 /* 825 * Cscope reads from to_cs[0] and writes to from_cs[1]; vi reads from 826 * from_cs[0] and writes to to_cs[1]. 827 */ 828 to_cs[0] = to_cs[1] = from_cs[0] = from_cs[1] = -1; 829 if (pipe(to_cs) < 0 || pipe(from_cs) < 0) 830 { 831 (void)EMSG(_("E566: Could not create cscope pipes")); 832 err_closing: 833 if (to_cs[0] != -1) 834 (void)close(to_cs[0]); 835 if (to_cs[1] != -1) 836 (void)close(to_cs[1]); 837 if (from_cs[0] != -1) 838 (void)close(from_cs[0]); 839 if (from_cs[1] != -1) 840 (void)close(from_cs[1]); 841 return CSCOPE_FAILURE; 842 } 843 844 switch (csinfo[i].pid = fork()) 845 { 846 case -1: 847 (void)EMSG(_("E622: Could not fork for cscope")); 848 goto err_closing; 849 case 0: /* child: run cscope. */ 850 if (dup2(to_cs[0], STDIN_FILENO) == -1) 851 PERROR("cs_create_connection 1"); 852 if (dup2(from_cs[1], STDOUT_FILENO) == -1) 853 PERROR("cs_create_connection 2"); 854 if (dup2(from_cs[1], STDERR_FILENO) == -1) 855 PERROR("cs_create_connection 3"); 856 857 /* close unused */ 858 (void)close(to_cs[1]); 859 (void)close(from_cs[0]); 860 #else 861 /* WIN32 */ 862 /* Create pipes to communicate with cscope */ 863 sa.nLength = sizeof(SECURITY_ATTRIBUTES); 864 sa.bInheritHandle = TRUE; 865 sa.lpSecurityDescriptor = NULL; 866 867 if (!(pipe_stdin = CreatePipe(&stdin_rd, &stdin_wr, &sa, 0)) 868 || !(pipe_stdout = CreatePipe(&stdout_rd, &stdout_wr, &sa, 0))) 869 { 870 (void)EMSG(_("E566: Could not create cscope pipes")); 871 err_closing: 872 if (pipe_stdin) 873 { 874 CloseHandle(stdin_rd); 875 CloseHandle(stdin_wr); 876 } 877 if (pipe_stdout) 878 { 879 CloseHandle(stdout_rd); 880 CloseHandle(stdout_wr); 881 } 882 return CSCOPE_FAILURE; 883 } 884 #endif 885 /* expand the cscope exec for env var's */ 886 if ((prog = (char *)alloc(MAXPATHL + 1)) == NULL) 887 { 888 #ifdef UNIX 889 return CSCOPE_FAILURE; 890 #else 891 /* WIN32 */ 892 goto err_closing; 893 #endif 894 } 895 expand_env((char_u *)p_csprg, (char_u *)prog, MAXPATHL); 896 897 /* alloc space to hold the cscope command */ 898 len = (int)(strlen(prog) + strlen(csinfo[i].fname) + 32); 899 if (csinfo[i].ppath) 900 { 901 /* expand the prepend path for env var's */ 902 if ((ppath = (char *)alloc(MAXPATHL + 1)) == NULL) 903 { 904 vim_free(prog); 905 #ifdef UNIX 906 return CSCOPE_FAILURE; 907 #else 908 /* WIN32 */ 909 goto err_closing; 910 #endif 911 } 912 expand_env((char_u *)csinfo[i].ppath, (char_u *)ppath, MAXPATHL); 913 914 len += (int)strlen(ppath); 915 } 916 917 if (csinfo[i].flags) 918 len += (int)strlen(csinfo[i].flags); 919 920 if ((cmd = (char *)alloc(len)) == NULL) 921 { 922 vim_free(prog); 923 vim_free(ppath); 924 #ifdef UNIX 925 return CSCOPE_FAILURE; 926 #else 927 /* WIN32 */ 928 goto err_closing; 929 #endif 930 } 931 932 /* run the cscope command; is there execl for non-unix systems? */ 933 #if defined(UNIX) 934 (void)sprintf(cmd, "exec %s -dl -f %s", prog, csinfo[i].fname); 935 #else 936 /* WIN32 */ 937 (void)sprintf(cmd, "%s -dl -f %s", prog, csinfo[i].fname); 938 #endif 939 if (csinfo[i].ppath != NULL) 940 { 941 (void)strcat(cmd, " -P"); 942 (void)strcat(cmd, csinfo[i].ppath); 943 } 944 if (csinfo[i].flags != NULL) 945 { 946 (void)strcat(cmd, " "); 947 (void)strcat(cmd, csinfo[i].flags); 948 } 949 # ifdef UNIX 950 /* on Win32 we still need prog */ 951 vim_free(prog); 952 # endif 953 vim_free(ppath); 954 955 #if defined(UNIX) 956 # if defined(HAVE_SETSID) || defined(HAVE_SETPGID) 957 /* Change our process group to avoid cscope receiving SIGWINCH. */ 958 # if defined(HAVE_SETSID) 959 (void)setsid(); 960 # else 961 if (setpgid(0, 0) == -1) 962 PERROR(_("cs_create_connection setpgid failed")); 963 # endif 964 # endif 965 if (execl("/bin/sh", "sh", "-c", cmd, (char *)NULL) == -1) 966 PERROR(_("cs_create_connection exec failed")); 967 968 exit(127); 969 /* NOTREACHED */ 970 default: /* parent. */ 971 /* 972 * Save the file descriptors for later duplication, and 973 * reopen as streams. 974 */ 975 if ((csinfo[i].to_fp = fdopen(to_cs[1], "w")) == NULL) 976 PERROR(_("cs_create_connection: fdopen for to_fp failed")); 977 if ((csinfo[i].fr_fp = fdopen(from_cs[0], "r")) == NULL) 978 PERROR(_("cs_create_connection: fdopen for fr_fp failed")); 979 980 /* close unused */ 981 (void)close(to_cs[0]); 982 (void)close(from_cs[1]); 983 984 break; 985 } 986 987 #else 988 /* WIN32 */ 989 /* Create a new process to run cscope and use pipes to talk with it */ 990 GetStartupInfo(&si); 991 si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW; 992 si.wShowWindow = SW_HIDE; /* Hide child application window */ 993 si.hStdOutput = stdout_wr; 994 si.hStdError = stdout_wr; 995 si.hStdInput = stdin_rd; 996 created = CreateProcess(NULL, cmd, NULL, NULL, TRUE, CREATE_NEW_CONSOLE, 997 NULL, NULL, &si, &pi); 998 vim_free(prog); 999 vim_free(cmd); 1000 1001 if (!created) 1002 { 1003 PERROR(_("cs_create_connection exec failed")); 1004 (void)EMSG(_("E623: Could not spawn cscope process")); 1005 goto err_closing; 1006 } 1007 /* else */ 1008 csinfo[i].pid = pi.dwProcessId; 1009 csinfo[i].hProc = pi.hProcess; 1010 CloseHandle(pi.hThread); 1011 1012 /* TODO - tidy up after failure to create files on pipe handles. */ 1013 if (((fd = _open_osfhandle((OPEN_OH_ARGTYPE)stdin_wr, 1014 _O_TEXT|_O_APPEND)) < 0) 1015 || ((csinfo[i].to_fp = _fdopen(fd, "w")) == NULL)) 1016 PERROR(_("cs_create_connection: fdopen for to_fp failed")); 1017 if (((fd = _open_osfhandle((OPEN_OH_ARGTYPE)stdout_rd, 1018 _O_TEXT|_O_RDONLY)) < 0) 1019 || ((csinfo[i].fr_fp = _fdopen(fd, "r")) == NULL)) 1020 PERROR(_("cs_create_connection: fdopen for fr_fp failed")); 1021 1022 /* Close handles for file descriptors inherited by the cscope process */ 1023 CloseHandle(stdin_rd); 1024 CloseHandle(stdout_wr); 1025 1026 #endif /* !UNIX */ 1027 1028 return CSCOPE_SUCCESS; 1029 } /* cs_create_connection */ 1030 1031 1032 /* 1033 * Query cscope using command line interface. Parse the output and use tselect 1034 * to allow choices. Like Nvi, creates a pipe to send to/from query/cscope. 1035 * 1036 * returns TRUE if we jump to a tag or abort, FALSE if not. 1037 */ 1038 static int 1039 cs_find(exarg_T *eap) 1040 { 1041 char *opt, *pat; 1042 int i; 1043 1044 if (cs_check_for_connections() == FALSE) 1045 { 1046 (void)EMSG(_("E567: no cscope connections")); 1047 return FALSE; 1048 } 1049 1050 if ((opt = strtok((char *)NULL, (const char *)" ")) == NULL) 1051 { 1052 cs_usage_msg(Find); 1053 return FALSE; 1054 } 1055 1056 pat = opt + strlen(opt) + 1; 1057 if (pat >= (char *)eap->arg + eap_arg_len) 1058 { 1059 cs_usage_msg(Find); 1060 return FALSE; 1061 } 1062 1063 /* 1064 * Let's replace the NULs written by strtok() with spaces - we need the 1065 * spaces to correctly display the quickfix/location list window's title. 1066 */ 1067 for (i = 0; i < eap_arg_len; ++i) 1068 if (NUL == eap->arg[i]) 1069 eap->arg[i] = ' '; 1070 1071 return cs_find_common(opt, pat, eap->forceit, TRUE, 1072 eap->cmdidx == CMD_lcscope, *eap->cmdlinep); 1073 } /* cs_find */ 1074 1075 1076 /* 1077 * Common code for cscope find, shared by cs_find() and ex_cstag(). 1078 */ 1079 static int 1080 cs_find_common( 1081 char *opt, 1082 char *pat, 1083 int forceit, 1084 int verbose, 1085 int use_ll UNUSED, 1086 char_u *cmdline UNUSED) 1087 { 1088 int i; 1089 char *cmd; 1090 int *nummatches; 1091 int totmatches; 1092 #ifdef FEAT_QUICKFIX 1093 char cmdletter; 1094 char *qfpos; 1095 1096 /* get cmd letter */ 1097 switch (opt[0]) 1098 { 1099 case '0' : 1100 cmdletter = 's'; 1101 break; 1102 case '1' : 1103 cmdletter = 'g'; 1104 break; 1105 case '2' : 1106 cmdletter = 'd'; 1107 break; 1108 case '3' : 1109 cmdletter = 'c'; 1110 break; 1111 case '4' : 1112 cmdletter = 't'; 1113 break; 1114 case '6' : 1115 cmdletter = 'e'; 1116 break; 1117 case '7' : 1118 cmdletter = 'f'; 1119 break; 1120 case '8' : 1121 cmdletter = 'i'; 1122 break; 1123 case '9' : 1124 cmdletter = 'a'; 1125 break; 1126 default : 1127 cmdletter = opt[0]; 1128 } 1129 1130 qfpos = (char *)vim_strchr(p_csqf, cmdletter); 1131 if (qfpos != NULL) 1132 { 1133 qfpos++; 1134 /* next symbol must be + or - */ 1135 if (strchr(CSQF_FLAGS, *qfpos) == NULL) 1136 { 1137 char *nf = _("E469: invalid cscopequickfix flag %c for %c"); 1138 char *buf = (char *)alloc((unsigned)strlen(nf)); 1139 1140 /* strlen will be enough because we use chars */ 1141 if (buf != NULL) 1142 { 1143 sprintf(buf, nf, *qfpos, *(qfpos-1)); 1144 (void)EMSG(buf); 1145 vim_free(buf); 1146 } 1147 return FALSE; 1148 } 1149 1150 if (*qfpos != '0' 1151 && apply_autocmds(EVENT_QUICKFIXCMDPRE, (char_u *)"cscope", 1152 curbuf->b_fname, TRUE, curbuf)) 1153 { 1154 # ifdef FEAT_EVAL 1155 if (aborting()) 1156 return FALSE; 1157 # endif 1158 } 1159 } 1160 #endif 1161 1162 /* create the actual command to send to cscope */ 1163 cmd = cs_create_cmd(opt, pat); 1164 if (cmd == NULL) 1165 return FALSE; 1166 1167 nummatches = (int *)alloc(sizeof(int)*csinfo_size); 1168 if (nummatches == NULL) 1169 { 1170 vim_free(cmd); 1171 return FALSE; 1172 } 1173 1174 /* Send query to all open connections, then count the total number 1175 * of matches so we can alloc all in one swell foop. */ 1176 for (i = 0; i < csinfo_size; i++) 1177 nummatches[i] = 0; 1178 totmatches = 0; 1179 for (i = 0; i < csinfo_size; i++) 1180 { 1181 if (csinfo[i].fname == NULL || csinfo[i].to_fp == NULL) 1182 continue; 1183 1184 /* send cmd to cscope */ 1185 (void)fprintf(csinfo[i].to_fp, "%s\n", cmd); 1186 (void)fflush(csinfo[i].to_fp); 1187 1188 nummatches[i] = cs_cnt_matches(i); 1189 1190 if (nummatches[i] > -1) 1191 totmatches += nummatches[i]; 1192 1193 if (nummatches[i] == 0) 1194 (void)cs_read_prompt(i); 1195 } 1196 vim_free(cmd); 1197 1198 if (totmatches == 0) 1199 { 1200 char *nf = _("E259: no matches found for cscope query %s of %s"); 1201 char *buf; 1202 1203 if (!verbose) 1204 { 1205 vim_free(nummatches); 1206 return FALSE; 1207 } 1208 1209 buf = (char *)alloc((unsigned)(strlen(opt) + strlen(pat) + strlen(nf))); 1210 if (buf == NULL) 1211 (void)EMSG(nf); 1212 else 1213 { 1214 sprintf(buf, nf, opt, pat); 1215 (void)EMSG(buf); 1216 vim_free(buf); 1217 } 1218 vim_free(nummatches); 1219 return FALSE; 1220 } 1221 1222 #ifdef FEAT_QUICKFIX 1223 if (qfpos != NULL && *qfpos != '0' && totmatches > 0) 1224 { 1225 /* fill error list */ 1226 FILE *f; 1227 char_u *tmp = vim_tempname('c', TRUE); 1228 qf_info_T *qi = NULL; 1229 win_T *wp = NULL; 1230 1231 f = mch_fopen((char *)tmp, "w"); 1232 if (f == NULL) 1233 EMSG2(_(e_notopen), tmp); 1234 else 1235 { 1236 cs_file_results(f, nummatches); 1237 fclose(f); 1238 if (use_ll) /* Use location list */ 1239 wp = curwin; 1240 /* '-' starts a new error list */ 1241 if (qf_init(wp, tmp, (char_u *)"%f%*\\t%l%*\\t%m", 1242 *qfpos == '-', cmdline, NULL) > 0) 1243 { 1244 if (postponed_split != 0) 1245 { 1246 (void)win_split(postponed_split > 0 ? postponed_split : 0, 1247 postponed_split_flags); 1248 RESET_BINDING(curwin); 1249 postponed_split = 0; 1250 } 1251 1252 apply_autocmds(EVENT_QUICKFIXCMDPOST, (char_u *)"cscope", 1253 curbuf->b_fname, TRUE, curbuf); 1254 if (use_ll) 1255 /* 1256 * In the location list window, use the displayed location 1257 * list. Otherwise, use the location list for the window. 1258 */ 1259 qi = (bt_quickfix(wp->w_buffer) && wp->w_llist_ref != NULL) 1260 ? wp->w_llist_ref : wp->w_llist; 1261 qf_jump(qi, 0, 0, forceit); 1262 } 1263 } 1264 mch_remove(tmp); 1265 vim_free(tmp); 1266 vim_free(nummatches); 1267 return TRUE; 1268 } 1269 else 1270 #endif /* FEAT_QUICKFIX */ 1271 { 1272 char **matches = NULL, **contexts = NULL; 1273 int matched = 0; 1274 1275 /* read output */ 1276 cs_fill_results((char *)pat, totmatches, nummatches, &matches, 1277 &contexts, &matched); 1278 vim_free(nummatches); 1279 if (matches == NULL) 1280 return FALSE; 1281 1282 (void)cs_manage_matches(matches, contexts, matched, Store); 1283 1284 return do_tag((char_u *)pat, DT_CSCOPE, 0, forceit, verbose); 1285 } 1286 1287 } /* cs_find_common */ 1288 1289 /* 1290 * Print help. 1291 */ 1292 static int 1293 cs_help(exarg_T *eap UNUSED) 1294 { 1295 cscmd_T *cmdp = cs_cmds; 1296 1297 (void)MSG_PUTS(_("cscope commands:\n")); 1298 while (cmdp->name != NULL) 1299 { 1300 char *help = _(cmdp->help); 1301 int space_cnt = 30 - vim_strsize((char_u *)help); 1302 1303 /* Use %*s rather than %30s to ensure proper alignment in utf-8 */ 1304 if (space_cnt < 0) 1305 space_cnt = 0; 1306 (void)smsg((char_u *)_("%-5s: %s%*s (Usage: %s)"), 1307 cmdp->name, 1308 help, space_cnt, " ", 1309 cmdp->usage); 1310 if (strcmp(cmdp->name, "find") == 0) 1311 MSG_PUTS(_("\n" 1312 " a: Find assignments to this symbol\n" 1313 " c: Find functions calling this function\n" 1314 " d: Find functions called by this function\n" 1315 " e: Find this egrep pattern\n" 1316 " f: Find this file\n" 1317 " g: Find this definition\n" 1318 " i: Find files #including this file\n" 1319 " s: Find this C symbol\n" 1320 " t: Find this text string\n")); 1321 1322 cmdp++; 1323 } 1324 1325 wait_return(TRUE); 1326 return 0; 1327 } /* cs_help */ 1328 1329 1330 static void 1331 clear_csinfo(int i) 1332 { 1333 csinfo[i].fname = NULL; 1334 csinfo[i].ppath = NULL; 1335 csinfo[i].flags = NULL; 1336 #if defined(UNIX) 1337 csinfo[i].st_dev = (dev_t)0; 1338 csinfo[i].st_ino = (ino_t)0; 1339 #else 1340 csinfo[i].nVolume = 0; 1341 csinfo[i].nIndexHigh = 0; 1342 csinfo[i].nIndexLow = 0; 1343 #endif 1344 csinfo[i].pid = 0; 1345 csinfo[i].fr_fp = NULL; 1346 csinfo[i].to_fp = NULL; 1347 #if defined(WIN32) 1348 csinfo[i].hProc = NULL; 1349 #endif 1350 } 1351 1352 #ifndef UNIX 1353 static char *GetWin32Error(void); 1354 1355 static char * 1356 GetWin32Error(void) 1357 { 1358 char *msg = NULL; 1359 FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM, 1360 NULL, GetLastError(), 0, (LPSTR)&msg, 0, NULL); 1361 if (msg != NULL) 1362 { 1363 /* remove trailing \r\n */ 1364 char *pcrlf = strstr(msg, "\r\n"); 1365 if (pcrlf != NULL) 1366 *pcrlf = '\0'; 1367 } 1368 return msg; 1369 } 1370 #endif 1371 1372 /* 1373 * Insert a new cscope database filename into the filelist. 1374 */ 1375 static int 1376 cs_insert_filelist( 1377 char *fname, 1378 char *ppath, 1379 char *flags, 1380 stat_T *sb UNUSED) 1381 { 1382 short i, j; 1383 #ifndef UNIX 1384 BY_HANDLE_FILE_INFORMATION bhfi; 1385 1386 switch (win32_fileinfo((char_u *)fname, &bhfi)) 1387 { 1388 case FILEINFO_ENC_FAIL: /* enc_to_utf16() failed */ 1389 case FILEINFO_READ_FAIL: /* CreateFile() failed */ 1390 if (p_csverbose) 1391 { 1392 char *cant_msg = _("E625: cannot open cscope database: %s"); 1393 char *winmsg = GetWin32Error(); 1394 1395 if (winmsg != NULL) 1396 { 1397 (void)EMSG2(cant_msg, winmsg); 1398 LocalFree(winmsg); 1399 } 1400 else 1401 /* subst filename if can't get error text */ 1402 (void)EMSG2(cant_msg, fname); 1403 } 1404 return -1; 1405 1406 case FILEINFO_INFO_FAIL: /* GetFileInformationByHandle() failed */ 1407 if (p_csverbose) 1408 (void)EMSG(_("E626: cannot get cscope database information")); 1409 return -1; 1410 } 1411 #endif 1412 1413 i = -1; /* can be set to the index of an empty item in csinfo */ 1414 for (j = 0; j < csinfo_size; j++) 1415 { 1416 if (csinfo[j].fname != NULL 1417 #if defined(UNIX) 1418 && csinfo[j].st_dev == sb->st_dev && csinfo[j].st_ino == sb->st_ino 1419 #else 1420 /* compare pathnames first */ 1421 && ((fullpathcmp((char_u *)csinfo[j].fname, 1422 (char_u *)fname, FALSE) & FPC_SAME) 1423 /* test index file attributes too */ 1424 || (csinfo[j].nVolume == bhfi.dwVolumeSerialNumber 1425 && csinfo[j].nIndexHigh == bhfi.nFileIndexHigh 1426 && csinfo[j].nIndexLow == bhfi.nFileIndexLow)) 1427 #endif 1428 ) 1429 { 1430 if (p_csverbose) 1431 (void)EMSG(_("E568: duplicate cscope database not added")); 1432 return -1; 1433 } 1434 1435 if (csinfo[j].fname == NULL && i == -1) 1436 i = j; /* remember first empty entry */ 1437 } 1438 1439 if (i == -1) 1440 { 1441 i = csinfo_size; 1442 if (csinfo_size == 0) 1443 { 1444 /* First time allocation: allocate only 1 connection. It should 1445 * be enough for most users. If more is needed, csinfo will be 1446 * reallocated. */ 1447 csinfo_size = 1; 1448 csinfo = (csinfo_T *)alloc_clear(sizeof(csinfo_T)); 1449 } 1450 else 1451 { 1452 csinfo_T *t_csinfo = csinfo; 1453 1454 /* Reallocate space for more connections. */ 1455 csinfo_size *= 2; 1456 csinfo = vim_realloc(csinfo, sizeof(csinfo_T)*csinfo_size); 1457 if (csinfo == NULL) 1458 { 1459 vim_free(t_csinfo); 1460 csinfo_size = 0; 1461 } 1462 } 1463 if (csinfo == NULL) 1464 return -1; 1465 for (j = csinfo_size/2; j < csinfo_size; j++) 1466 clear_csinfo(j); 1467 } 1468 1469 if ((csinfo[i].fname = (char *)alloc((unsigned)strlen(fname)+1)) == NULL) 1470 return -1; 1471 1472 (void)strcpy(csinfo[i].fname, (const char *)fname); 1473 1474 if (ppath != NULL) 1475 { 1476 if ((csinfo[i].ppath = (char *)alloc((unsigned)strlen(ppath) + 1)) == NULL) 1477 { 1478 VIM_CLEAR(csinfo[i].fname); 1479 return -1; 1480 } 1481 (void)strcpy(csinfo[i].ppath, (const char *)ppath); 1482 } else 1483 csinfo[i].ppath = NULL; 1484 1485 if (flags != NULL) 1486 { 1487 if ((csinfo[i].flags = (char *)alloc((unsigned)strlen(flags) + 1)) == NULL) 1488 { 1489 VIM_CLEAR(csinfo[i].fname); 1490 VIM_CLEAR(csinfo[i].ppath); 1491 return -1; 1492 } 1493 (void)strcpy(csinfo[i].flags, (const char *)flags); 1494 } else 1495 csinfo[i].flags = NULL; 1496 1497 #if defined(UNIX) 1498 csinfo[i].st_dev = sb->st_dev; 1499 csinfo[i].st_ino = sb->st_ino; 1500 1501 #else 1502 csinfo[i].nVolume = bhfi.dwVolumeSerialNumber; 1503 csinfo[i].nIndexLow = bhfi.nFileIndexLow; 1504 csinfo[i].nIndexHigh = bhfi.nFileIndexHigh; 1505 #endif 1506 return i; 1507 } /* cs_insert_filelist */ 1508 1509 1510 /* 1511 * Find cscope command in command table. 1512 */ 1513 static cscmd_T * 1514 cs_lookup_cmd(exarg_T *eap) 1515 { 1516 cscmd_T *cmdp; 1517 char *stok; 1518 size_t len; 1519 1520 if (eap->arg == NULL) 1521 return NULL; 1522 1523 /* Store length of eap->arg before it gets modified by strtok(). */ 1524 eap_arg_len = (int)STRLEN(eap->arg); 1525 1526 if ((stok = strtok((char *)(eap->arg), (const char *)" ")) == NULL) 1527 return NULL; 1528 1529 len = strlen(stok); 1530 for (cmdp = cs_cmds; cmdp->name != NULL; ++cmdp) 1531 { 1532 if (strncmp((const char *)(stok), cmdp->name, len) == 0) 1533 return (cmdp); 1534 } 1535 return NULL; 1536 } /* cs_lookup_cmd */ 1537 1538 1539 /* 1540 * Nuke em. 1541 */ 1542 static int 1543 cs_kill(exarg_T *eap UNUSED) 1544 { 1545 char *stok; 1546 short i; 1547 1548 if ((stok = strtok((char *)NULL, (const char *)" ")) == NULL) 1549 { 1550 cs_usage_msg(Kill); 1551 return CSCOPE_FAILURE; 1552 } 1553 1554 /* only single digit positive and negative integers are allowed */ 1555 if ((strlen(stok) < 2 && VIM_ISDIGIT((int)(stok[0]))) 1556 || (strlen(stok) < 3 && stok[0] == '-' 1557 && VIM_ISDIGIT((int)(stok[1])))) 1558 i = atoi(stok); 1559 else 1560 { 1561 /* It must be part of a name. We will try to find a match 1562 * within all the names in the csinfo data structure 1563 */ 1564 for (i = 0; i < csinfo_size; i++) 1565 { 1566 if (csinfo[i].fname != NULL && strstr(csinfo[i].fname, stok)) 1567 break; 1568 } 1569 } 1570 1571 if ((i != -1) && (i >= csinfo_size || i < -1 || csinfo[i].fname == NULL)) 1572 { 1573 if (p_csverbose) 1574 (void)EMSG2(_("E261: cscope connection %s not found"), stok); 1575 } 1576 else 1577 { 1578 if (i == -1) 1579 { 1580 for (i = 0; i < csinfo_size; i++) 1581 { 1582 if (csinfo[i].fname) 1583 cs_kill_execute(i, csinfo[i].fname); 1584 } 1585 } 1586 else 1587 cs_kill_execute(i, stok); 1588 } 1589 1590 return 0; 1591 } /* cs_kill */ 1592 1593 1594 /* 1595 * Actually kills a specific cscope connection. 1596 */ 1597 static void 1598 cs_kill_execute( 1599 int i, /* cscope table index */ 1600 char *cname) /* cscope database name */ 1601 { 1602 if (p_csverbose) 1603 { 1604 msg_clr_eos(); 1605 (void)smsg_attr(HL_ATTR(HLF_R) | MSG_HIST, 1606 (char_u *)_("cscope connection %s closed"), cname); 1607 } 1608 cs_release_csp(i, TRUE); 1609 } 1610 1611 1612 /* 1613 * Convert the cscope output into a ctags style entry (as might be found 1614 * in a ctags tags file). there's one catch though: cscope doesn't tell you 1615 * the type of the tag you are looking for. for example, in Darren Hiebert's 1616 * ctags (the one that comes with vim), #define's use a line number to find the 1617 * tag in a file while function definitions use a regexp search pattern. 1618 * 1619 * I'm going to always use the line number because cscope does something 1620 * quirky (and probably other things i don't know about): 1621 * 1622 * if you have "# define" in your source file, which is 1623 * perfectly legal, cscope thinks you have "#define". this 1624 * will result in a failed regexp search. :( 1625 * 1626 * Besides, even if this particular case didn't happen, the search pattern 1627 * would still have to be modified to escape all the special regular expression 1628 * characters to comply with ctags formatting. 1629 */ 1630 static char * 1631 cs_make_vim_style_matches( 1632 char *fname, 1633 char *slno, 1634 char *search, 1635 char *tagstr) 1636 { 1637 /* vim style is ctags: 1638 * 1639 * <tagstr>\t<filename>\t<linenum_or_search>"\t<extra> 1640 * 1641 * but as mentioned above, we'll always use the line number and 1642 * put the search pattern (if one exists) as "extra" 1643 * 1644 * buf is used as part of vim's method of handling tags, and 1645 * (i think) vim frees it when you pop your tags and get replaced 1646 * by new ones on the tag stack. 1647 */ 1648 char *buf; 1649 int amt; 1650 1651 if (search != NULL) 1652 { 1653 amt = (int)(strlen(fname) + strlen(slno) + strlen(tagstr) + strlen(search)+6); 1654 if ((buf = (char *)alloc(amt)) == NULL) 1655 return NULL; 1656 1657 (void)sprintf(buf, "%s\t%s\t%s;\"\t%s", tagstr, fname, slno, search); 1658 } 1659 else 1660 { 1661 amt = (int)(strlen(fname) + strlen(slno) + strlen(tagstr) + 5); 1662 if ((buf = (char *)alloc(amt)) == NULL) 1663 return NULL; 1664 1665 (void)sprintf(buf, "%s\t%s\t%s;\"", tagstr, fname, slno); 1666 } 1667 1668 return buf; 1669 } /* cs_make_vim_style_matches */ 1670 1671 1672 /* 1673 * This is kind of hokey, but i don't see an easy way round this. 1674 * 1675 * Store: keep a ptr to the (malloc'd) memory of matches originally 1676 * generated from cs_find(). the matches are originally lines directly 1677 * from cscope output, but transformed to look like something out of a 1678 * ctags. see cs_make_vim_style_matches for more details. 1679 * 1680 * Get: used only from cs_fgets(), this simulates a vim_fgets() to return 1681 * the next line from the cscope output. it basically keeps track of which 1682 * lines have been "used" and returns the next one. 1683 * 1684 * Free: frees up everything and resets 1685 * 1686 * Print: prints the tags 1687 */ 1688 static char * 1689 cs_manage_matches( 1690 char **matches, 1691 char **contexts, 1692 int totmatches, 1693 mcmd_e cmd) 1694 { 1695 static char **mp = NULL; 1696 static char **cp = NULL; 1697 static int cnt = -1; 1698 static int next = -1; 1699 char *p = NULL; 1700 1701 switch (cmd) 1702 { 1703 case Store: 1704 assert(matches != NULL); 1705 assert(totmatches > 0); 1706 if (mp != NULL || cp != NULL) 1707 (void)cs_manage_matches(NULL, NULL, -1, Free); 1708 mp = matches; 1709 cp = contexts; 1710 cnt = totmatches; 1711 next = 0; 1712 break; 1713 case Get: 1714 if (next >= cnt) 1715 return NULL; 1716 1717 p = mp[next]; 1718 next++; 1719 break; 1720 case Free: 1721 if (mp != NULL) 1722 { 1723 if (cnt > 0) 1724 while (cnt--) 1725 { 1726 vim_free(mp[cnt]); 1727 if (cp != NULL) 1728 vim_free(cp[cnt]); 1729 } 1730 vim_free(mp); 1731 vim_free(cp); 1732 } 1733 mp = NULL; 1734 cp = NULL; 1735 cnt = 0; 1736 next = 0; 1737 break; 1738 case Print: 1739 cs_print_tags_priv(mp, cp, cnt); 1740 break; 1741 default: /* should not reach here */ 1742 IEMSG(_("E570: fatal error in cs_manage_matches")); 1743 return NULL; 1744 } 1745 1746 return p; 1747 } /* cs_manage_matches */ 1748 1749 1750 /* 1751 * Parse cscope output. 1752 */ 1753 static char * 1754 cs_parse_results( 1755 int cnumber, 1756 char *buf, 1757 int bufsize, 1758 char **context, 1759 char **linenumber, 1760 char **search) 1761 { 1762 int ch; 1763 char *p; 1764 char *name; 1765 1766 if (fgets(buf, bufsize, csinfo[cnumber].fr_fp) == NULL) 1767 { 1768 if (feof(csinfo[cnumber].fr_fp)) 1769 errno = EIO; 1770 1771 cs_reading_emsg(cnumber); 1772 1773 return NULL; 1774 } 1775 1776 /* If the line's too long for the buffer, discard it. */ 1777 if ((p = strchr(buf, '\n')) == NULL) 1778 { 1779 while ((ch = getc(csinfo[cnumber].fr_fp)) != EOF && ch != '\n') 1780 ; 1781 return NULL; 1782 } 1783 *p = '\0'; 1784 1785 /* 1786 * cscope output is in the following format: 1787 * 1788 * <filename> <context> <line number> <pattern> 1789 */ 1790 if ((name = strtok((char *)buf, (const char *)" ")) == NULL) 1791 return NULL; 1792 if ((*context = strtok(NULL, (const char *)" ")) == NULL) 1793 return NULL; 1794 if ((*linenumber = strtok(NULL, (const char *)" ")) == NULL) 1795 return NULL; 1796 *search = *linenumber + strlen(*linenumber) + 1; /* +1 to skip \0 */ 1797 1798 /* --- nvi --- 1799 * If the file is older than the cscope database, that is, 1800 * the database was built since the file was last modified, 1801 * or there wasn't a search string, use the line number. 1802 */ 1803 if (strcmp(*search, "<unknown>") == 0) 1804 *search = NULL; 1805 1806 name = cs_resolve_file(cnumber, name); 1807 return name; 1808 } 1809 1810 #ifdef FEAT_QUICKFIX 1811 /* 1812 * Write cscope find results to file. 1813 */ 1814 static void 1815 cs_file_results(FILE *f, int *nummatches_a) 1816 { 1817 int i, j; 1818 char *buf; 1819 char *search, *slno; 1820 char *fullname; 1821 char *cntx; 1822 char *context; 1823 1824 buf = (char *)alloc(CSREAD_BUFSIZE); 1825 if (buf == NULL) 1826 return; 1827 1828 for (i = 0; i < csinfo_size; i++) 1829 { 1830 if (nummatches_a[i] < 1) 1831 continue; 1832 1833 for (j = 0; j < nummatches_a[i]; j++) 1834 { 1835 if ((fullname = cs_parse_results(i, buf, CSREAD_BUFSIZE, &cntx, 1836 &slno, &search)) == NULL) 1837 continue; 1838 1839 context = (char *)alloc((unsigned)strlen(cntx)+5); 1840 if (context == NULL) 1841 continue; 1842 1843 if (strcmp(cntx, "<global>")==0) 1844 strcpy(context, "<<global>>"); 1845 else 1846 sprintf(context, "<<%s>>", cntx); 1847 1848 if (search == NULL) 1849 fprintf(f, "%s\t%s\t%s\n", fullname, slno, context); 1850 else 1851 fprintf(f, "%s\t%s\t%s %s\n", fullname, slno, context, search); 1852 1853 vim_free(context); 1854 vim_free(fullname); 1855 } /* for all matches */ 1856 1857 (void)cs_read_prompt(i); 1858 1859 } /* for all cscope connections */ 1860 vim_free(buf); 1861 } 1862 #endif 1863 1864 /* 1865 * Get parsed cscope output and calls cs_make_vim_style_matches to convert 1866 * into ctags format. 1867 * When there are no matches sets "*matches_p" to NULL. 1868 */ 1869 static void 1870 cs_fill_results( 1871 char *tagstr, 1872 int totmatches, 1873 int *nummatches_a, 1874 char ***matches_p, 1875 char ***cntxts_p, 1876 int *matched) 1877 { 1878 int i, j; 1879 char *buf; 1880 char *search, *slno; 1881 int totsofar = 0; 1882 char **matches = NULL; 1883 char **cntxts = NULL; 1884 char *fullname; 1885 char *cntx; 1886 1887 assert(totmatches > 0); 1888 1889 buf = (char *)alloc(CSREAD_BUFSIZE); 1890 if (buf == NULL) 1891 return; 1892 1893 if ((matches = (char **)alloc(sizeof(char *) * totmatches)) == NULL) 1894 goto parse_out; 1895 if ((cntxts = (char **)alloc(sizeof(char *) * totmatches)) == NULL) 1896 goto parse_out; 1897 1898 for (i = 0; i < csinfo_size; i++) 1899 { 1900 if (nummatches_a[i] < 1) 1901 continue; 1902 1903 for (j = 0; j < nummatches_a[i]; j++) 1904 { 1905 if ((fullname = cs_parse_results(i, buf, CSREAD_BUFSIZE, &cntx, 1906 &slno, &search)) == NULL) 1907 continue; 1908 1909 matches[totsofar] = cs_make_vim_style_matches(fullname, slno, 1910 search, tagstr); 1911 1912 vim_free(fullname); 1913 1914 if (strcmp(cntx, "<global>") == 0) 1915 cntxts[totsofar] = NULL; 1916 else 1917 /* note: if vim_strsave returns NULL, then the context 1918 * will be "<global>", which is misleading. 1919 */ 1920 cntxts[totsofar] = (char *)vim_strsave((char_u *)cntx); 1921 1922 if (matches[totsofar] != NULL) 1923 totsofar++; 1924 1925 } /* for all matches */ 1926 1927 (void)cs_read_prompt(i); 1928 1929 } /* for all cscope connections */ 1930 1931 parse_out: 1932 if (totsofar == 0) 1933 { 1934 /* No matches, free the arrays and return NULL in "*matches_p". */ 1935 VIM_CLEAR(matches); 1936 VIM_CLEAR(cntxts); 1937 } 1938 *matched = totsofar; 1939 *matches_p = matches; 1940 *cntxts_p = cntxts; 1941 1942 vim_free(buf); 1943 } /* cs_fill_results */ 1944 1945 1946 /* get the requested path components */ 1947 static char * 1948 cs_pathcomponents(char *path) 1949 { 1950 int i; 1951 char *s; 1952 1953 if (p_cspc == 0) 1954 return path; 1955 1956 s = path + strlen(path) - 1; 1957 for (i = 0; i < p_cspc; ++i) 1958 while (s > path && *--s != '/' 1959 #ifdef WIN32 1960 && *--s != '\\' 1961 #endif 1962 ) 1963 ; 1964 if ((s > path && *s == '/') 1965 #ifdef WIN32 1966 || (s > path && *s == '\\') 1967 #endif 1968 ) 1969 ++s; 1970 return s; 1971 } 1972 1973 /* 1974 * Called from cs_manage_matches(). 1975 */ 1976 static void 1977 cs_print_tags_priv(char **matches, char **cntxts, int num_matches) 1978 { 1979 char *buf = NULL; 1980 char *t_buf; 1981 int bufsize = 0; /* Track available bufsize */ 1982 int newsize = 0; 1983 char *ptag; 1984 char *fname, *lno, *extra, *tbuf; 1985 int i, idx, num; 1986 char *globalcntx = "GLOBAL"; 1987 char *cntxformat = " <<%s>>"; 1988 char *context; 1989 char *cstag_msg = _("Cscope tag: %s"); 1990 char *csfmt_str = "%4d %6s "; 1991 1992 assert(num_matches > 0); 1993 1994 if ((tbuf = (char *)alloc((unsigned)strlen(matches[0]) + 1)) == NULL) 1995 return; 1996 1997 strcpy(tbuf, matches[0]); 1998 ptag = strtok(tbuf, "\t"); 1999 if (ptag == NULL) 2000 { 2001 vim_free(tbuf); 2002 return; 2003 } 2004 2005 newsize = (int)(strlen(cstag_msg) + strlen(ptag)); 2006 buf = (char *)alloc(newsize); 2007 if (buf != NULL) 2008 { 2009 bufsize = newsize; 2010 (void)sprintf(buf, cstag_msg, ptag); 2011 MSG_PUTS_ATTR(buf, HL_ATTR(HLF_T)); 2012 } 2013 2014 vim_free(tbuf); 2015 2016 MSG_PUTS_ATTR(_("\n # line"), HL_ATTR(HLF_T)); /* strlen is 7 */ 2017 msg_advance(msg_col + 2); 2018 MSG_PUTS_ATTR(_("filename / context / line\n"), HL_ATTR(HLF_T)); 2019 2020 num = 1; 2021 for (i = 0; i < num_matches; i++) 2022 { 2023 idx = i; 2024 2025 /* if we really wanted to, we could avoid this malloc and strcpy 2026 * by parsing matches[i] on the fly and placing stuff into buf 2027 * directly, but that's too much of a hassle 2028 */ 2029 if ((tbuf = (char *)alloc((unsigned)strlen(matches[idx]) + 1)) == NULL) 2030 continue; 2031 (void)strcpy(tbuf, matches[idx]); 2032 2033 if (strtok(tbuf, (const char *)"\t") == NULL 2034 || (fname = strtok(NULL, (const char *)"\t")) == NULL 2035 || (lno = strtok(NULL, (const char *)"\t")) == NULL) 2036 { 2037 vim_free(tbuf); 2038 continue; 2039 } 2040 extra = strtok(NULL, (const char *)"\t"); 2041 2042 lno[strlen(lno)-2] = '\0'; /* ignore ;" at the end */ 2043 2044 /* hopefully 'num' (num of matches) will be less than 10^16 */ 2045 newsize = (int)(strlen(csfmt_str) + 16 + strlen(lno)); 2046 if (bufsize < newsize) 2047 { 2048 t_buf = buf; 2049 buf = (char *)vim_realloc(buf, newsize); 2050 if (buf == NULL) 2051 { 2052 bufsize = 0; 2053 vim_free(t_buf); 2054 } 2055 else 2056 bufsize = newsize; 2057 } 2058 if (buf != NULL) 2059 { 2060 /* csfmt_str = "%4d %6s "; */ 2061 (void)sprintf(buf, csfmt_str, num, lno); 2062 MSG_PUTS_ATTR(buf, HL_ATTR(HLF_CM)); 2063 } 2064 MSG_PUTS_LONG_ATTR(cs_pathcomponents(fname), HL_ATTR(HLF_CM)); 2065 2066 /* compute the required space for the context */ 2067 if (cntxts[idx] != NULL) 2068 context = cntxts[idx]; 2069 else 2070 context = globalcntx; 2071 newsize = (int)(strlen(context) + strlen(cntxformat)); 2072 2073 if (bufsize < newsize) 2074 { 2075 t_buf = buf; 2076 buf = (char *)vim_realloc(buf, newsize); 2077 if (buf == NULL) 2078 { 2079 bufsize = 0; 2080 vim_free(t_buf); 2081 } 2082 else 2083 bufsize = newsize; 2084 } 2085 if (buf != NULL) 2086 { 2087 (void)sprintf(buf, cntxformat, context); 2088 2089 /* print the context only if it fits on the same line */ 2090 if (msg_col + (int)strlen(buf) >= (int)Columns) 2091 msg_putchar('\n'); 2092 msg_advance(12); 2093 MSG_PUTS_LONG(buf); 2094 msg_putchar('\n'); 2095 } 2096 if (extra != NULL) 2097 { 2098 msg_advance(13); 2099 MSG_PUTS_LONG(extra); 2100 } 2101 2102 vim_free(tbuf); /* only after printing extra due to strtok use */ 2103 2104 if (msg_col) 2105 msg_putchar('\n'); 2106 2107 ui_breakcheck(); 2108 if (got_int) 2109 { 2110 got_int = FALSE; /* don't print any more matches */ 2111 break; 2112 } 2113 2114 num++; 2115 } /* for all matches */ 2116 2117 vim_free(buf); 2118 } /* cs_print_tags_priv */ 2119 2120 2121 /* 2122 * Read a cscope prompt (basically, skip over the ">> "). 2123 */ 2124 static int 2125 cs_read_prompt(int i) 2126 { 2127 int ch; 2128 char *buf = NULL; /* buffer for possible error message from cscope */ 2129 int bufpos = 0; 2130 char *cs_emsg; 2131 int maxlen; 2132 static char *eprompt = "Press the RETURN key to continue:"; 2133 int epromptlen = (int)strlen(eprompt); 2134 int n; 2135 2136 cs_emsg = _("E609: Cscope error: %s"); 2137 /* compute maximum allowed len for Cscope error message */ 2138 maxlen = (int)(IOSIZE - strlen(cs_emsg)); 2139 2140 for (;;) 2141 { 2142 while ((ch = getc(csinfo[i].fr_fp)) != EOF && ch != CSCOPE_PROMPT[0]) 2143 /* if there is room and char is printable */ 2144 if (bufpos < maxlen - 1 && vim_isprintc(ch)) 2145 { 2146 if (buf == NULL) /* lazy buffer allocation */ 2147 buf = (char *)alloc(maxlen); 2148 if (buf != NULL) 2149 { 2150 /* append character to the message */ 2151 buf[bufpos++] = ch; 2152 buf[bufpos] = NUL; 2153 if (bufpos >= epromptlen 2154 && strcmp(&buf[bufpos - epromptlen], eprompt) == 0) 2155 { 2156 /* remove eprompt from buf */ 2157 buf[bufpos - epromptlen] = NUL; 2158 2159 /* print message to user */ 2160 (void)EMSG2(cs_emsg, buf); 2161 2162 /* send RETURN to cscope */ 2163 (void)putc('\n', csinfo[i].to_fp); 2164 (void)fflush(csinfo[i].to_fp); 2165 2166 /* clear buf */ 2167 bufpos = 0; 2168 buf[bufpos] = NUL; 2169 } 2170 } 2171 } 2172 2173 for (n = 0; n < (int)strlen(CSCOPE_PROMPT); ++n) 2174 { 2175 if (n > 0) 2176 ch = getc(csinfo[i].fr_fp); 2177 if (ch == EOF) 2178 { 2179 PERROR("cs_read_prompt EOF"); 2180 if (buf != NULL && buf[0] != NUL) 2181 (void)EMSG2(cs_emsg, buf); 2182 else if (p_csverbose) 2183 cs_reading_emsg(i); /* don't have additional information */ 2184 cs_release_csp(i, TRUE); 2185 vim_free(buf); 2186 return CSCOPE_FAILURE; 2187 } 2188 2189 if (ch != CSCOPE_PROMPT[n]) 2190 { 2191 ch = EOF; 2192 break; 2193 } 2194 } 2195 2196 if (ch == EOF) 2197 continue; /* didn't find the prompt */ 2198 break; /* did find the prompt */ 2199 } 2200 2201 vim_free(buf); 2202 return CSCOPE_SUCCESS; 2203 } 2204 2205 #if defined(UNIX) && defined(SIGALRM) 2206 /* 2207 * Used to catch and ignore SIGALRM below. 2208 */ 2209 static RETSIGTYPE 2210 sig_handler SIGDEFARG(sigarg) 2211 { 2212 /* do nothing */ 2213 SIGRETURN; 2214 } 2215 #endif 2216 2217 /* 2218 * Does the actual free'ing for the cs ptr with an optional flag of whether 2219 * or not to free the filename. Called by cs_kill and cs_reset. 2220 */ 2221 static void 2222 cs_release_csp(int i, int freefnpp) 2223 { 2224 /* 2225 * Trying to exit normally (not sure whether it is fit to UNIX cscope 2226 */ 2227 if (csinfo[i].to_fp != NULL) 2228 { 2229 (void)fputs("q\n", csinfo[i].to_fp); 2230 (void)fflush(csinfo[i].to_fp); 2231 } 2232 #if defined(UNIX) 2233 { 2234 int waitpid_errno; 2235 int pstat; 2236 pid_t pid; 2237 2238 # if defined(HAVE_SIGACTION) 2239 struct sigaction sa, old; 2240 2241 /* Use sigaction() to limit the waiting time to two seconds. */ 2242 sigemptyset(&sa.sa_mask); 2243 sa.sa_handler = sig_handler; 2244 # ifdef SA_NODEFER 2245 sa.sa_flags = SA_NODEFER; 2246 # else 2247 sa.sa_flags = 0; 2248 # endif 2249 sigaction(SIGALRM, &sa, &old); 2250 alarm(2); /* 2 sec timeout */ 2251 2252 /* Block until cscope exits or until timer expires */ 2253 pid = waitpid(csinfo[i].pid, &pstat, 0); 2254 waitpid_errno = errno; 2255 2256 /* cancel pending alarm if still there and restore signal */ 2257 alarm(0); 2258 sigaction(SIGALRM, &old, NULL); 2259 # else 2260 int waited; 2261 2262 /* Can't use sigaction(), loop for two seconds. First yield the CPU 2263 * to give cscope a chance to exit quickly. */ 2264 sleep(0); 2265 for (waited = 0; waited < 40; ++waited) 2266 { 2267 pid = waitpid(csinfo[i].pid, &pstat, WNOHANG); 2268 waitpid_errno = errno; 2269 if (pid != 0) 2270 break; /* break unless the process is still running */ 2271 mch_delay(50L, FALSE); /* sleep 50 ms */ 2272 } 2273 # endif 2274 /* 2275 * If the cscope process is still running: kill it. 2276 * Safety check: If the PID would be zero here, the entire X session 2277 * would be killed. -1 and 1 are dangerous as well. 2278 */ 2279 if (pid < 0 && csinfo[i].pid > 1) 2280 { 2281 # ifdef ECHILD 2282 int alive = TRUE; 2283 2284 if (waitpid_errno == ECHILD) 2285 { 2286 /* 2287 * When using 'vim -g', vim is forked and cscope process is 2288 * no longer a child process but a sibling. So waitpid() 2289 * fails with errno being ECHILD (No child processes). 2290 * Don't send SIGKILL to cscope immediately but wait 2291 * (polling) for it to exit normally as result of sending 2292 * the "q" command, hence giving it a chance to clean up 2293 * its temporary files. 2294 */ 2295 int waited; 2296 2297 sleep(0); 2298 for (waited = 0; waited < 40; ++waited) 2299 { 2300 /* Check whether cscope process is still alive */ 2301 if (kill(csinfo[i].pid, 0) != 0) 2302 { 2303 alive = FALSE; /* cscope process no longer exists */ 2304 break; 2305 } 2306 mch_delay(50L, FALSE); /* sleep 50ms */ 2307 } 2308 } 2309 if (alive) 2310 # endif 2311 { 2312 kill(csinfo[i].pid, SIGKILL); 2313 (void)waitpid(csinfo[i].pid, &pstat, 0); 2314 } 2315 } 2316 } 2317 #else /* !UNIX */ 2318 if (csinfo[i].hProc != NULL) 2319 { 2320 /* Give cscope a chance to exit normally */ 2321 if (WaitForSingleObject(csinfo[i].hProc, 1000) == WAIT_TIMEOUT) 2322 TerminateProcess(csinfo[i].hProc, 0); 2323 CloseHandle(csinfo[i].hProc); 2324 } 2325 #endif 2326 2327 if (csinfo[i].fr_fp != NULL) 2328 (void)fclose(csinfo[i].fr_fp); 2329 if (csinfo[i].to_fp != NULL) 2330 (void)fclose(csinfo[i].to_fp); 2331 2332 if (freefnpp) 2333 { 2334 vim_free(csinfo[i].fname); 2335 vim_free(csinfo[i].ppath); 2336 vim_free(csinfo[i].flags); 2337 } 2338 2339 clear_csinfo(i); 2340 } /* cs_release_csp */ 2341 2342 2343 /* 2344 * Calls cs_kill on all cscope connections then reinits. 2345 */ 2346 static int 2347 cs_reset(exarg_T *eap UNUSED) 2348 { 2349 char **dblist = NULL, **pplist = NULL, **fllist = NULL; 2350 int i; 2351 char buf[20]; /* for sprintf " (#%d)" */ 2352 2353 if (csinfo_size == 0) 2354 return CSCOPE_SUCCESS; 2355 2356 /* malloc our db and ppath list */ 2357 dblist = (char **)alloc(csinfo_size * sizeof(char *)); 2358 pplist = (char **)alloc(csinfo_size * sizeof(char *)); 2359 fllist = (char **)alloc(csinfo_size * sizeof(char *)); 2360 if (dblist == NULL || pplist == NULL || fllist == NULL) 2361 { 2362 vim_free(dblist); 2363 vim_free(pplist); 2364 vim_free(fllist); 2365 return CSCOPE_FAILURE; 2366 } 2367 2368 for (i = 0; i < csinfo_size; i++) 2369 { 2370 dblist[i] = csinfo[i].fname; 2371 pplist[i] = csinfo[i].ppath; 2372 fllist[i] = csinfo[i].flags; 2373 if (csinfo[i].fname != NULL) 2374 cs_release_csp(i, FALSE); 2375 } 2376 2377 /* rebuild the cscope connection list */ 2378 for (i = 0; i < csinfo_size; i++) 2379 { 2380 if (dblist[i] != NULL) 2381 { 2382 cs_add_common(dblist[i], pplist[i], fllist[i]); 2383 if (p_csverbose) 2384 { 2385 /* don't use smsg_attr() because we want to display the 2386 * connection number in the same line as 2387 * "Added cscope database..." 2388 */ 2389 sprintf(buf, " (#%d)", i); 2390 MSG_PUTS_ATTR(buf, HL_ATTR(HLF_R)); 2391 } 2392 } 2393 vim_free(dblist[i]); 2394 vim_free(pplist[i]); 2395 vim_free(fllist[i]); 2396 } 2397 vim_free(dblist); 2398 vim_free(pplist); 2399 vim_free(fllist); 2400 2401 if (p_csverbose) 2402 MSG_ATTR(_("All cscope databases reset"), HL_ATTR(HLF_R) | MSG_HIST); 2403 return CSCOPE_SUCCESS; 2404 } /* cs_reset */ 2405 2406 2407 /* 2408 * Construct the full pathname to a file found in the cscope database. 2409 * (Prepends ppath, if there is one and if it's not already prepended, 2410 * otherwise just uses the name found.) 2411 * 2412 * We need to prepend the prefix because on some cscope's (e.g., the one that 2413 * ships with Solaris 2.6), the output never has the prefix prepended. 2414 * Contrast this with my development system (Digital Unix), which does. 2415 */ 2416 static char * 2417 cs_resolve_file(int i, char *name) 2418 { 2419 char *fullname; 2420 int len; 2421 char_u *csdir = NULL; 2422 2423 /* 2424 * Ppath is freed when we destroy the cscope connection. 2425 * Fullname is freed after cs_make_vim_style_matches, after it's been 2426 * copied into the tag buffer used by Vim. 2427 */ 2428 len = (int)(strlen(name) + 2); 2429 if (csinfo[i].ppath != NULL) 2430 len += (int)strlen(csinfo[i].ppath); 2431 else if (p_csre && csinfo[i].fname != NULL) 2432 { 2433 /* If 'cscoperelative' is set and ppath is not set, use cscope.out 2434 * path in path resolution. */ 2435 csdir = alloc(MAXPATHL); 2436 if (csdir != NULL) 2437 { 2438 vim_strncpy(csdir, (char_u *)csinfo[i].fname, 2439 gettail((char_u *)csinfo[i].fname) 2440 - (char_u *)csinfo[i].fname); 2441 len += (int)STRLEN(csdir); 2442 } 2443 } 2444 2445 /* Note/example: this won't work if the cscope output already starts 2446 * "../.." and the prefix path is also "../..". if something like this 2447 * happens, you are screwed up and need to fix how you're using cscope. */ 2448 if (csinfo[i].ppath != NULL 2449 && (strncmp(name, csinfo[i].ppath, strlen(csinfo[i].ppath)) != 0) 2450 && (name[0] != '/') 2451 #ifdef WIN32 2452 && name[0] != '\\' && name[1] != ':' 2453 #endif 2454 ) 2455 { 2456 if ((fullname = (char *)alloc(len)) != NULL) 2457 (void)sprintf(fullname, "%s/%s", csinfo[i].ppath, name); 2458 } 2459 else if (csdir != NULL && csinfo[i].fname != NULL && *csdir != NUL) 2460 { 2461 /* Check for csdir to be non empty to avoid empty path concatenated to 2462 * cscope output. */ 2463 fullname = (char *)concat_fnames(csdir, (char_u *)name, TRUE); 2464 } 2465 else 2466 { 2467 fullname = (char *)vim_strsave((char_u *)name); 2468 } 2469 2470 vim_free(csdir); 2471 return fullname; 2472 } 2473 2474 2475 /* 2476 * Show all cscope connections. 2477 */ 2478 static int 2479 cs_show(exarg_T *eap UNUSED) 2480 { 2481 short i; 2482 if (cs_cnt_connections() == 0) 2483 MSG_PUTS(_("no cscope connections\n")); 2484 else 2485 { 2486 MSG_PUTS_ATTR( 2487 _(" # pid database name prepend path\n"), 2488 HL_ATTR(HLF_T)); 2489 for (i = 0; i < csinfo_size; i++) 2490 { 2491 if (csinfo[i].fname == NULL) 2492 continue; 2493 2494 if (csinfo[i].ppath != NULL) 2495 (void)smsg((char_u *)"%2d %-5ld %-34s %-32s", 2496 i, (long)csinfo[i].pid, csinfo[i].fname, csinfo[i].ppath); 2497 else 2498 (void)smsg((char_u *)"%2d %-5ld %-34s <none>", 2499 i, (long)csinfo[i].pid, csinfo[i].fname); 2500 } 2501 } 2502 2503 wait_return(TRUE); 2504 return CSCOPE_SUCCESS; 2505 } /* cs_show */ 2506 2507 2508 /* 2509 * Only called when VIM exits to quit any cscope sessions. 2510 */ 2511 void 2512 cs_end(void) 2513 { 2514 int i; 2515 2516 for (i = 0; i < csinfo_size; i++) 2517 cs_release_csp(i, TRUE); 2518 vim_free(csinfo); 2519 csinfo_size = 0; 2520 } 2521 2522 #endif /* FEAT_CSCOPE */ 2523 2524 /* the end */ 2525