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; 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 */ 704 if ((stok = strtok(buf, (const char *)" ")) == NULL) 705 continue; 706 if (strstr((const char *)stok, "cscope:") == NULL) 707 continue; 708 709 if ((stok = strtok(NULL, (const char *)" ")) == NULL) 710 continue; 711 nlines = atoi(stok); 712 if (nlines < 0) 713 { 714 nlines = 0; 715 break; 716 } 717 718 if ((stok = strtok(NULL, (const char *)" ")) == NULL) 719 continue; 720 if (strncmp((const char *)stok, "lines", 5)) 721 continue; 722 723 break; 724 } 725 726 vim_free(buf); 727 return nlines; 728 } /* cs_cnt_matches */ 729 730 731 /* 732 * Creates the actual cscope command query from what the user entered. 733 */ 734 static char * 735 cs_create_cmd(char *csoption, char *pattern) 736 { 737 char *cmd; 738 short search; 739 char *pat; 740 741 switch (csoption[0]) 742 { 743 case '0' : case 's' : 744 search = 0; 745 break; 746 case '1' : case 'g' : 747 search = 1; 748 break; 749 case '2' : case 'd' : 750 search = 2; 751 break; 752 case '3' : case 'c' : 753 search = 3; 754 break; 755 case '4' : case 't' : 756 search = 4; 757 break; 758 case '6' : case 'e' : 759 search = 6; 760 break; 761 case '7' : case 'f' : 762 search = 7; 763 break; 764 case '8' : case 'i' : 765 search = 8; 766 break; 767 case '9' : case 'a' : 768 search = 9; 769 break; 770 default : 771 (void)EMSG(_("E561: unknown cscope search type")); 772 cs_usage_msg(Find); 773 return NULL; 774 } 775 776 /* Skip white space before the patter, except for text and pattern search, 777 * they may want to use the leading white space. */ 778 pat = pattern; 779 if (search != 4 && search != 6) 780 while VIM_ISWHITE(*pat) 781 ++pat; 782 783 if ((cmd = (char *)alloc((unsigned)(strlen(pat) + 2))) == NULL) 784 return NULL; 785 786 (void)sprintf(cmd, "%d%s", search, pat); 787 788 return cmd; 789 } /* cs_create_cmd */ 790 791 792 /* 793 * This piece of code was taken/adapted from nvi. do we need to add 794 * the BSD license notice? 795 */ 796 static int 797 cs_create_connection(int i) 798 { 799 #ifdef UNIX 800 int to_cs[2], from_cs[2]; 801 #endif 802 int len; 803 char *prog, *cmd, *ppath = NULL; 804 #ifdef WIN32 805 int fd; 806 SECURITY_ATTRIBUTES sa; 807 PROCESS_INFORMATION pi; 808 STARTUPINFO si; 809 BOOL pipe_stdin = FALSE, pipe_stdout = FALSE; 810 HANDLE stdin_rd, stdout_rd; 811 HANDLE stdout_wr, stdin_wr; 812 BOOL created; 813 # if (defined(_MSC_VER) && (_MSC_VER >= 1300)) || defined(__MINGW32__) 814 # define OPEN_OH_ARGTYPE intptr_t 815 # else 816 # define OPEN_OH_ARGTYPE long 817 # endif 818 #endif 819 820 #if defined(UNIX) 821 /* 822 * Cscope reads from to_cs[0] and writes to from_cs[1]; vi reads from 823 * from_cs[0] and writes to to_cs[1]. 824 */ 825 to_cs[0] = to_cs[1] = from_cs[0] = from_cs[1] = -1; 826 if (pipe(to_cs) < 0 || pipe(from_cs) < 0) 827 { 828 (void)EMSG(_("E566: Could not create cscope pipes")); 829 err_closing: 830 if (to_cs[0] != -1) 831 (void)close(to_cs[0]); 832 if (to_cs[1] != -1) 833 (void)close(to_cs[1]); 834 if (from_cs[0] != -1) 835 (void)close(from_cs[0]); 836 if (from_cs[1] != -1) 837 (void)close(from_cs[1]); 838 return CSCOPE_FAILURE; 839 } 840 841 switch (csinfo[i].pid = fork()) 842 { 843 case -1: 844 (void)EMSG(_("E622: Could not fork for cscope")); 845 goto err_closing; 846 case 0: /* child: run cscope. */ 847 if (dup2(to_cs[0], STDIN_FILENO) == -1) 848 PERROR("cs_create_connection 1"); 849 if (dup2(from_cs[1], STDOUT_FILENO) == -1) 850 PERROR("cs_create_connection 2"); 851 if (dup2(from_cs[1], STDERR_FILENO) == -1) 852 PERROR("cs_create_connection 3"); 853 854 /* close unused */ 855 (void)close(to_cs[1]); 856 (void)close(from_cs[0]); 857 #else 858 /* WIN32 */ 859 /* Create pipes to communicate with cscope */ 860 sa.nLength = sizeof(SECURITY_ATTRIBUTES); 861 sa.bInheritHandle = TRUE; 862 sa.lpSecurityDescriptor = NULL; 863 864 if (!(pipe_stdin = CreatePipe(&stdin_rd, &stdin_wr, &sa, 0)) 865 || !(pipe_stdout = CreatePipe(&stdout_rd, &stdout_wr, &sa, 0))) 866 { 867 (void)EMSG(_("E566: Could not create cscope pipes")); 868 err_closing: 869 if (pipe_stdin) 870 { 871 CloseHandle(stdin_rd); 872 CloseHandle(stdin_wr); 873 } 874 if (pipe_stdout) 875 { 876 CloseHandle(stdout_rd); 877 CloseHandle(stdout_wr); 878 } 879 return CSCOPE_FAILURE; 880 } 881 #endif 882 /* expand the cscope exec for env var's */ 883 if ((prog = (char *)alloc(MAXPATHL + 1)) == NULL) 884 { 885 #ifdef UNIX 886 return CSCOPE_FAILURE; 887 #else 888 /* WIN32 */ 889 goto err_closing; 890 #endif 891 } 892 expand_env((char_u *)p_csprg, (char_u *)prog, MAXPATHL); 893 894 /* alloc space to hold the cscope command */ 895 len = (int)(strlen(prog) + strlen(csinfo[i].fname) + 32); 896 if (csinfo[i].ppath) 897 { 898 /* expand the prepend path for env var's */ 899 if ((ppath = (char *)alloc(MAXPATHL + 1)) == NULL) 900 { 901 vim_free(prog); 902 #ifdef UNIX 903 return CSCOPE_FAILURE; 904 #else 905 /* WIN32 */ 906 goto err_closing; 907 #endif 908 } 909 expand_env((char_u *)csinfo[i].ppath, (char_u *)ppath, MAXPATHL); 910 911 len += (int)strlen(ppath); 912 } 913 914 if (csinfo[i].flags) 915 len += (int)strlen(csinfo[i].flags); 916 917 if ((cmd = (char *)alloc(len)) == NULL) 918 { 919 vim_free(prog); 920 vim_free(ppath); 921 #ifdef UNIX 922 return CSCOPE_FAILURE; 923 #else 924 /* WIN32 */ 925 goto err_closing; 926 #endif 927 } 928 929 /* run the cscope command; is there execl for non-unix systems? */ 930 #if defined(UNIX) 931 (void)sprintf(cmd, "exec %s -dl -f %s", prog, csinfo[i].fname); 932 #else 933 /* WIN32 */ 934 (void)sprintf(cmd, "%s -dl -f %s", prog, csinfo[i].fname); 935 #endif 936 if (csinfo[i].ppath != NULL) 937 { 938 (void)strcat(cmd, " -P"); 939 (void)strcat(cmd, csinfo[i].ppath); 940 } 941 if (csinfo[i].flags != NULL) 942 { 943 (void)strcat(cmd, " "); 944 (void)strcat(cmd, csinfo[i].flags); 945 } 946 # ifdef UNIX 947 /* on Win32 we still need prog */ 948 vim_free(prog); 949 # endif 950 vim_free(ppath); 951 952 #if defined(UNIX) 953 # if defined(HAVE_SETSID) || defined(HAVE_SETPGID) 954 /* Change our process group to avoid cscope receiving SIGWINCH. */ 955 # if defined(HAVE_SETSID) 956 (void)setsid(); 957 # else 958 if (setpgid(0, 0) == -1) 959 PERROR(_("cs_create_connection setpgid failed")); 960 # endif 961 # endif 962 if (execl("/bin/sh", "sh", "-c", cmd, (char *)NULL) == -1) 963 PERROR(_("cs_create_connection exec failed")); 964 965 exit(127); 966 /* NOTREACHED */ 967 default: /* parent. */ 968 /* 969 * Save the file descriptors for later duplication, and 970 * reopen as streams. 971 */ 972 if ((csinfo[i].to_fp = fdopen(to_cs[1], "w")) == NULL) 973 PERROR(_("cs_create_connection: fdopen for to_fp failed")); 974 if ((csinfo[i].fr_fp = fdopen(from_cs[0], "r")) == NULL) 975 PERROR(_("cs_create_connection: fdopen for fr_fp failed")); 976 977 /* close unused */ 978 (void)close(to_cs[0]); 979 (void)close(from_cs[1]); 980 981 break; 982 } 983 984 #else 985 /* WIN32 */ 986 /* Create a new process to run cscope and use pipes to talk with it */ 987 GetStartupInfo(&si); 988 si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW; 989 si.wShowWindow = SW_HIDE; /* Hide child application window */ 990 si.hStdOutput = stdout_wr; 991 si.hStdError = stdout_wr; 992 si.hStdInput = stdin_rd; 993 created = CreateProcess(NULL, cmd, NULL, NULL, TRUE, CREATE_NEW_CONSOLE, 994 NULL, NULL, &si, &pi); 995 vim_free(prog); 996 vim_free(cmd); 997 998 if (!created) 999 { 1000 PERROR(_("cs_create_connection exec failed")); 1001 (void)EMSG(_("E623: Could not spawn cscope process")); 1002 goto err_closing; 1003 } 1004 /* else */ 1005 csinfo[i].pid = pi.dwProcessId; 1006 csinfo[i].hProc = pi.hProcess; 1007 CloseHandle(pi.hThread); 1008 1009 /* TODO - tidy up after failure to create files on pipe handles. */ 1010 if (((fd = _open_osfhandle((OPEN_OH_ARGTYPE)stdin_wr, 1011 _O_TEXT|_O_APPEND)) < 0) 1012 || ((csinfo[i].to_fp = _fdopen(fd, "w")) == NULL)) 1013 PERROR(_("cs_create_connection: fdopen for to_fp failed")); 1014 if (((fd = _open_osfhandle((OPEN_OH_ARGTYPE)stdout_rd, 1015 _O_TEXT|_O_RDONLY)) < 0) 1016 || ((csinfo[i].fr_fp = _fdopen(fd, "r")) == NULL)) 1017 PERROR(_("cs_create_connection: fdopen for fr_fp failed")); 1018 1019 /* Close handles for file descriptors inherited by the cscope process */ 1020 CloseHandle(stdin_rd); 1021 CloseHandle(stdout_wr); 1022 1023 #endif /* !UNIX */ 1024 1025 return CSCOPE_SUCCESS; 1026 } /* cs_create_connection */ 1027 1028 1029 /* 1030 * Query cscope using command line interface. Parse the output and use tselect 1031 * to allow choices. Like Nvi, creates a pipe to send to/from query/cscope. 1032 * 1033 * returns TRUE if we jump to a tag or abort, FALSE if not. 1034 */ 1035 static int 1036 cs_find(exarg_T *eap) 1037 { 1038 char *opt, *pat; 1039 int i; 1040 1041 if (cs_check_for_connections() == FALSE) 1042 { 1043 (void)EMSG(_("E567: no cscope connections")); 1044 return FALSE; 1045 } 1046 1047 if ((opt = strtok((char *)NULL, (const char *)" ")) == NULL) 1048 { 1049 cs_usage_msg(Find); 1050 return FALSE; 1051 } 1052 1053 pat = opt + strlen(opt) + 1; 1054 if (pat >= (char *)eap->arg + eap_arg_len) 1055 { 1056 cs_usage_msg(Find); 1057 return FALSE; 1058 } 1059 1060 /* 1061 * Let's replace the NULs written by strtok() with spaces - we need the 1062 * spaces to correctly display the quickfix/location list window's title. 1063 */ 1064 for (i = 0; i < eap_arg_len; ++i) 1065 if (NUL == eap->arg[i]) 1066 eap->arg[i] = ' '; 1067 1068 return cs_find_common(opt, pat, eap->forceit, TRUE, 1069 eap->cmdidx == CMD_lcscope, *eap->cmdlinep); 1070 } /* cs_find */ 1071 1072 1073 /* 1074 * Common code for cscope find, shared by cs_find() and ex_cstag(). 1075 */ 1076 static int 1077 cs_find_common( 1078 char *opt, 1079 char *pat, 1080 int forceit, 1081 int verbose, 1082 int use_ll UNUSED, 1083 char_u *cmdline UNUSED) 1084 { 1085 int i; 1086 char *cmd; 1087 int *nummatches; 1088 int totmatches; 1089 #ifdef FEAT_QUICKFIX 1090 char cmdletter; 1091 char *qfpos; 1092 1093 /* get cmd letter */ 1094 switch (opt[0]) 1095 { 1096 case '0' : 1097 cmdletter = 's'; 1098 break; 1099 case '1' : 1100 cmdletter = 'g'; 1101 break; 1102 case '2' : 1103 cmdletter = 'd'; 1104 break; 1105 case '3' : 1106 cmdletter = 'c'; 1107 break; 1108 case '4' : 1109 cmdletter = 't'; 1110 break; 1111 case '6' : 1112 cmdletter = 'e'; 1113 break; 1114 case '7' : 1115 cmdletter = 'f'; 1116 break; 1117 case '8' : 1118 cmdletter = 'i'; 1119 break; 1120 case '9' : 1121 cmdletter = 'a'; 1122 break; 1123 default : 1124 cmdletter = opt[0]; 1125 } 1126 1127 qfpos = (char *)vim_strchr(p_csqf, cmdletter); 1128 if (qfpos != NULL) 1129 { 1130 qfpos++; 1131 /* next symbol must be + or - */ 1132 if (strchr(CSQF_FLAGS, *qfpos) == NULL) 1133 { 1134 char *nf = _("E469: invalid cscopequickfix flag %c for %c"); 1135 char *buf = (char *)alloc((unsigned)strlen(nf)); 1136 1137 /* strlen will be enough because we use chars */ 1138 if (buf != NULL) 1139 { 1140 sprintf(buf, nf, *qfpos, *(qfpos-1)); 1141 (void)EMSG(buf); 1142 vim_free(buf); 1143 } 1144 return FALSE; 1145 } 1146 1147 # ifdef FEAT_AUTOCMD 1148 if (*qfpos != '0' 1149 && apply_autocmds(EVENT_QUICKFIXCMDPRE, (char_u *)"cscope", 1150 curbuf->b_fname, TRUE, curbuf)) 1151 { 1152 # ifdef FEAT_EVAL 1153 if (aborting()) 1154 return FALSE; 1155 # endif 1156 } 1157 # endif 1158 } 1159 #endif 1160 1161 /* create the actual command to send to cscope */ 1162 cmd = cs_create_cmd(opt, pat); 1163 if (cmd == NULL) 1164 return FALSE; 1165 1166 nummatches = (int *)alloc(sizeof(int)*csinfo_size); 1167 if (nummatches == NULL) 1168 { 1169 vim_free(cmd); 1170 return FALSE; 1171 } 1172 1173 /* Send query to all open connections, then count the total number 1174 * of matches so we can alloc all in one swell foop. */ 1175 for (i = 0; i < csinfo_size; i++) 1176 nummatches[i] = 0; 1177 totmatches = 0; 1178 for (i = 0; i < csinfo_size; i++) 1179 { 1180 if (csinfo[i].fname == NULL || csinfo[i].to_fp == NULL) 1181 continue; 1182 1183 /* send cmd to cscope */ 1184 (void)fprintf(csinfo[i].to_fp, "%s\n", cmd); 1185 (void)fflush(csinfo[i].to_fp); 1186 1187 nummatches[i] = cs_cnt_matches(i); 1188 1189 if (nummatches[i] > -1) 1190 totmatches += nummatches[i]; 1191 1192 if (nummatches[i] == 0) 1193 (void)cs_read_prompt(i); 1194 } 1195 vim_free(cmd); 1196 1197 if (totmatches == 0) 1198 { 1199 char *nf = _("E259: no matches found for cscope query %s of %s"); 1200 char *buf; 1201 1202 if (!verbose) 1203 { 1204 vim_free(nummatches); 1205 return FALSE; 1206 } 1207 1208 buf = (char *)alloc((unsigned)(strlen(opt) + strlen(pat) + strlen(nf))); 1209 if (buf == NULL) 1210 (void)EMSG(nf); 1211 else 1212 { 1213 sprintf(buf, nf, opt, pat); 1214 (void)EMSG(buf); 1215 vim_free(buf); 1216 } 1217 vim_free(nummatches); 1218 return FALSE; 1219 } 1220 1221 #ifdef FEAT_QUICKFIX 1222 if (qfpos != NULL && *qfpos != '0' && totmatches > 0) 1223 { 1224 /* fill error list */ 1225 FILE *f; 1226 char_u *tmp = vim_tempname('c', TRUE); 1227 qf_info_T *qi = NULL; 1228 win_T *wp = NULL; 1229 1230 f = mch_fopen((char *)tmp, "w"); 1231 if (f == NULL) 1232 EMSG2(_(e_notopen), tmp); 1233 else 1234 { 1235 cs_file_results(f, nummatches); 1236 fclose(f); 1237 if (use_ll) /* Use location list */ 1238 wp = curwin; 1239 /* '-' starts a new error list */ 1240 if (qf_init(wp, tmp, (char_u *)"%f%*\\t%l%*\\t%m", 1241 *qfpos == '-', cmdline, NULL) > 0) 1242 { 1243 if (postponed_split != 0) 1244 { 1245 (void)win_split(postponed_split > 0 ? postponed_split : 0, 1246 postponed_split_flags); 1247 RESET_BINDING(curwin); 1248 postponed_split = 0; 1249 } 1250 1251 # ifdef FEAT_AUTOCMD 1252 apply_autocmds(EVENT_QUICKFIXCMDPOST, (char_u *)"cscope", 1253 curbuf->b_fname, TRUE, curbuf); 1254 # endif 1255 if (use_ll) 1256 /* 1257 * In the location list window, use the displayed location 1258 * list. Otherwise, use the location list for the window. 1259 */ 1260 qi = (bt_quickfix(wp->w_buffer) && wp->w_llist_ref != NULL) 1261 ? wp->w_llist_ref : wp->w_llist; 1262 qf_jump(qi, 0, 0, forceit); 1263 } 1264 } 1265 mch_remove(tmp); 1266 vim_free(tmp); 1267 vim_free(nummatches); 1268 return TRUE; 1269 } 1270 else 1271 #endif /* FEAT_QUICKFIX */ 1272 { 1273 char **matches = NULL, **contexts = NULL; 1274 int matched = 0; 1275 1276 /* read output */ 1277 cs_fill_results((char *)pat, totmatches, nummatches, &matches, 1278 &contexts, &matched); 1279 vim_free(nummatches); 1280 if (matches == NULL) 1281 return FALSE; 1282 1283 (void)cs_manage_matches(matches, contexts, matched, Store); 1284 1285 return do_tag((char_u *)pat, DT_CSCOPE, 0, forceit, verbose); 1286 } 1287 1288 } /* cs_find_common */ 1289 1290 /* 1291 * Print help. 1292 */ 1293 static int 1294 cs_help(exarg_T *eap UNUSED) 1295 { 1296 cscmd_T *cmdp = cs_cmds; 1297 1298 (void)MSG_PUTS(_("cscope commands:\n")); 1299 while (cmdp->name != NULL) 1300 { 1301 char *help = _(cmdp->help); 1302 int space_cnt = 30 - vim_strsize((char_u *)help); 1303 1304 /* Use %*s rather than %30s to ensure proper alignment in utf-8 */ 1305 if (space_cnt < 0) 1306 space_cnt = 0; 1307 (void)smsg((char_u *)_("%-5s: %s%*s (Usage: %s)"), 1308 cmdp->name, 1309 help, space_cnt, " ", 1310 cmdp->usage); 1311 if (strcmp(cmdp->name, "find") == 0) 1312 MSG_PUTS(_("\n" 1313 " a: Find assignments to this symbol\n" 1314 " c: Find functions calling this function\n" 1315 " d: Find functions called by this function\n" 1316 " e: Find this egrep pattern\n" 1317 " f: Find this file\n" 1318 " g: Find this definition\n" 1319 " i: Find files #including this file\n" 1320 " s: Find this C symbol\n" 1321 " t: Find this text string\n")); 1322 1323 cmdp++; 1324 } 1325 1326 wait_return(TRUE); 1327 return 0; 1328 } /* cs_help */ 1329 1330 1331 static void 1332 clear_csinfo(int i) 1333 { 1334 csinfo[i].fname = NULL; 1335 csinfo[i].ppath = NULL; 1336 csinfo[i].flags = NULL; 1337 #if defined(UNIX) 1338 csinfo[i].st_dev = (dev_t)0; 1339 csinfo[i].st_ino = (ino_t)0; 1340 #else 1341 csinfo[i].nVolume = 0; 1342 csinfo[i].nIndexHigh = 0; 1343 csinfo[i].nIndexLow = 0; 1344 #endif 1345 csinfo[i].pid = 0; 1346 csinfo[i].fr_fp = NULL; 1347 csinfo[i].to_fp = NULL; 1348 #if defined(WIN32) 1349 csinfo[i].hProc = NULL; 1350 #endif 1351 } 1352 1353 #ifndef UNIX 1354 static char *GetWin32Error(void); 1355 1356 static char * 1357 GetWin32Error(void) 1358 { 1359 char *msg = NULL; 1360 FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM, 1361 NULL, GetLastError(), 0, (LPSTR)&msg, 0, NULL); 1362 if (msg != NULL) 1363 { 1364 /* remove trailing \r\n */ 1365 char *pcrlf = strstr(msg, "\r\n"); 1366 if (pcrlf != NULL) 1367 *pcrlf = '\0'; 1368 } 1369 return msg; 1370 } 1371 #endif 1372 1373 /* 1374 * Insert a new cscope database filename into the filelist. 1375 */ 1376 static int 1377 cs_insert_filelist( 1378 char *fname, 1379 char *ppath, 1380 char *flags, 1381 stat_T *sb UNUSED) 1382 { 1383 short i, j; 1384 #ifndef UNIX 1385 BY_HANDLE_FILE_INFORMATION bhfi; 1386 1387 switch (win32_fileinfo((char_u *)fname, &bhfi)) 1388 { 1389 case FILEINFO_ENC_FAIL: /* enc_to_utf16() failed */ 1390 case FILEINFO_READ_FAIL: /* CreateFile() failed */ 1391 if (p_csverbose) 1392 { 1393 char *cant_msg = _("E625: cannot open cscope database: %s"); 1394 char *winmsg = GetWin32Error(); 1395 1396 if (winmsg != NULL) 1397 { 1398 (void)EMSG2(cant_msg, winmsg); 1399 LocalFree(winmsg); 1400 } 1401 else 1402 /* subst filename if can't get error text */ 1403 (void)EMSG2(cant_msg, fname); 1404 } 1405 return -1; 1406 1407 case FILEINFO_INFO_FAIL: /* GetFileInformationByHandle() failed */ 1408 if (p_csverbose) 1409 (void)EMSG(_("E626: cannot get cscope database information")); 1410 return -1; 1411 } 1412 #endif 1413 1414 i = -1; /* can be set to the index of an empty item in csinfo */ 1415 for (j = 0; j < csinfo_size; j++) 1416 { 1417 if (csinfo[j].fname != NULL 1418 #if defined(UNIX) 1419 && csinfo[j].st_dev == sb->st_dev && csinfo[j].st_ino == sb->st_ino 1420 #else 1421 /* compare pathnames first */ 1422 && ((fullpathcmp((char_u *)csinfo[j].fname, 1423 (char_u *)fname, FALSE) & FPC_SAME) 1424 /* test index file attributes too */ 1425 || (csinfo[j].nVolume == bhfi.dwVolumeSerialNumber 1426 && csinfo[j].nIndexHigh == bhfi.nFileIndexHigh 1427 && csinfo[j].nIndexLow == bhfi.nFileIndexLow)) 1428 #endif 1429 ) 1430 { 1431 if (p_csverbose) 1432 (void)EMSG(_("E568: duplicate cscope database not added")); 1433 return -1; 1434 } 1435 1436 if (csinfo[j].fname == NULL && i == -1) 1437 i = j; /* remember first empty entry */ 1438 } 1439 1440 if (i == -1) 1441 { 1442 i = csinfo_size; 1443 if (csinfo_size == 0) 1444 { 1445 /* First time allocation: allocate only 1 connection. It should 1446 * be enough for most users. If more is needed, csinfo will be 1447 * reallocated. */ 1448 csinfo_size = 1; 1449 csinfo = (csinfo_T *)alloc_clear(sizeof(csinfo_T)); 1450 } 1451 else 1452 { 1453 csinfo_T *t_csinfo = csinfo; 1454 1455 /* Reallocate space for more connections. */ 1456 csinfo_size *= 2; 1457 csinfo = vim_realloc(csinfo, sizeof(csinfo_T)*csinfo_size); 1458 if (csinfo == NULL) 1459 { 1460 vim_free(t_csinfo); 1461 csinfo_size = 0; 1462 } 1463 } 1464 if (csinfo == NULL) 1465 return -1; 1466 for (j = csinfo_size/2; j < csinfo_size; j++) 1467 clear_csinfo(j); 1468 } 1469 1470 if ((csinfo[i].fname = (char *)alloc((unsigned)strlen(fname)+1)) == NULL) 1471 return -1; 1472 1473 (void)strcpy(csinfo[i].fname, (const char *)fname); 1474 1475 if (ppath != NULL) 1476 { 1477 if ((csinfo[i].ppath = (char *)alloc((unsigned)strlen(ppath) + 1)) == NULL) 1478 { 1479 vim_free(csinfo[i].fname); 1480 csinfo[i].fname = NULL; 1481 return -1; 1482 } 1483 (void)strcpy(csinfo[i].ppath, (const char *)ppath); 1484 } else 1485 csinfo[i].ppath = NULL; 1486 1487 if (flags != NULL) 1488 { 1489 if ((csinfo[i].flags = (char *)alloc((unsigned)strlen(flags) + 1)) == NULL) 1490 { 1491 vim_free(csinfo[i].fname); 1492 vim_free(csinfo[i].ppath); 1493 csinfo[i].fname = NULL; 1494 csinfo[i].ppath = NULL; 1495 return -1; 1496 } 1497 (void)strcpy(csinfo[i].flags, (const char *)flags); 1498 } else 1499 csinfo[i].flags = NULL; 1500 1501 #if defined(UNIX) 1502 csinfo[i].st_dev = sb->st_dev; 1503 csinfo[i].st_ino = sb->st_ino; 1504 1505 #else 1506 csinfo[i].nVolume = bhfi.dwVolumeSerialNumber; 1507 csinfo[i].nIndexLow = bhfi.nFileIndexLow; 1508 csinfo[i].nIndexHigh = bhfi.nFileIndexHigh; 1509 #endif 1510 return i; 1511 } /* cs_insert_filelist */ 1512 1513 1514 /* 1515 * Find cscope command in command table. 1516 */ 1517 static cscmd_T * 1518 cs_lookup_cmd(exarg_T *eap) 1519 { 1520 cscmd_T *cmdp; 1521 char *stok; 1522 size_t len; 1523 1524 if (eap->arg == NULL) 1525 return NULL; 1526 1527 /* Store length of eap->arg before it gets modified by strtok(). */ 1528 eap_arg_len = (int)STRLEN(eap->arg); 1529 1530 if ((stok = strtok((char *)(eap->arg), (const char *)" ")) == NULL) 1531 return NULL; 1532 1533 len = strlen(stok); 1534 for (cmdp = cs_cmds; cmdp->name != NULL; ++cmdp) 1535 { 1536 if (strncmp((const char *)(stok), cmdp->name, len) == 0) 1537 return (cmdp); 1538 } 1539 return NULL; 1540 } /* cs_lookup_cmd */ 1541 1542 1543 /* 1544 * Nuke em. 1545 */ 1546 static int 1547 cs_kill(exarg_T *eap UNUSED) 1548 { 1549 char *stok; 1550 short i; 1551 1552 if ((stok = strtok((char *)NULL, (const char *)" ")) == NULL) 1553 { 1554 cs_usage_msg(Kill); 1555 return CSCOPE_FAILURE; 1556 } 1557 1558 /* only single digit positive and negative integers are allowed */ 1559 if ((strlen(stok) < 2 && VIM_ISDIGIT((int)(stok[0]))) 1560 || (strlen(stok) < 3 && stok[0] == '-' 1561 && VIM_ISDIGIT((int)(stok[1])))) 1562 i = atoi(stok); 1563 else 1564 { 1565 /* It must be part of a name. We will try to find a match 1566 * within all the names in the csinfo data structure 1567 */ 1568 for (i = 0; i < csinfo_size; i++) 1569 { 1570 if (csinfo[i].fname != NULL && strstr(csinfo[i].fname, stok)) 1571 break; 1572 } 1573 } 1574 1575 if ((i != -1) && (i >= csinfo_size || i < -1 || csinfo[i].fname == NULL)) 1576 { 1577 if (p_csverbose) 1578 (void)EMSG2(_("E261: cscope connection %s not found"), stok); 1579 } 1580 else 1581 { 1582 if (i == -1) 1583 { 1584 for (i = 0; i < csinfo_size; i++) 1585 { 1586 if (csinfo[i].fname) 1587 cs_kill_execute(i, csinfo[i].fname); 1588 } 1589 } 1590 else 1591 cs_kill_execute(i, stok); 1592 } 1593 1594 return 0; 1595 } /* cs_kill */ 1596 1597 1598 /* 1599 * Actually kills a specific cscope connection. 1600 */ 1601 static void 1602 cs_kill_execute( 1603 int i, /* cscope table index */ 1604 char *cname) /* cscope database name */ 1605 { 1606 if (p_csverbose) 1607 { 1608 msg_clr_eos(); 1609 (void)smsg_attr(HL_ATTR(HLF_R) | MSG_HIST, 1610 (char_u *)_("cscope connection %s closed"), cname); 1611 } 1612 cs_release_csp(i, TRUE); 1613 } 1614 1615 1616 /* 1617 * Convert the cscope output into a ctags style entry (as might be found 1618 * in a ctags tags file). there's one catch though: cscope doesn't tell you 1619 * the type of the tag you are looking for. for example, in Darren Hiebert's 1620 * ctags (the one that comes with vim), #define's use a line number to find the 1621 * tag in a file while function definitions use a regexp search pattern. 1622 * 1623 * I'm going to always use the line number because cscope does something 1624 * quirky (and probably other things i don't know about): 1625 * 1626 * if you have "# define" in your source file, which is 1627 * perfectly legal, cscope thinks you have "#define". this 1628 * will result in a failed regexp search. :( 1629 * 1630 * Besides, even if this particular case didn't happen, the search pattern 1631 * would still have to be modified to escape all the special regular expression 1632 * characters to comply with ctags formatting. 1633 */ 1634 static char * 1635 cs_make_vim_style_matches( 1636 char *fname, 1637 char *slno, 1638 char *search, 1639 char *tagstr) 1640 { 1641 /* vim style is ctags: 1642 * 1643 * <tagstr>\t<filename>\t<linenum_or_search>"\t<extra> 1644 * 1645 * but as mentioned above, we'll always use the line number and 1646 * put the search pattern (if one exists) as "extra" 1647 * 1648 * buf is used as part of vim's method of handling tags, and 1649 * (i think) vim frees it when you pop your tags and get replaced 1650 * by new ones on the tag stack. 1651 */ 1652 char *buf; 1653 int amt; 1654 1655 if (search != NULL) 1656 { 1657 amt = (int)(strlen(fname) + strlen(slno) + strlen(tagstr) + strlen(search)+6); 1658 if ((buf = (char *)alloc(amt)) == NULL) 1659 return NULL; 1660 1661 (void)sprintf(buf, "%s\t%s\t%s;\"\t%s", tagstr, fname, slno, search); 1662 } 1663 else 1664 { 1665 amt = (int)(strlen(fname) + strlen(slno) + strlen(tagstr) + 5); 1666 if ((buf = (char *)alloc(amt)) == NULL) 1667 return NULL; 1668 1669 (void)sprintf(buf, "%s\t%s\t%s;\"", tagstr, fname, slno); 1670 } 1671 1672 return buf; 1673 } /* cs_make_vim_style_matches */ 1674 1675 1676 /* 1677 * This is kind of hokey, but i don't see an easy way round this. 1678 * 1679 * Store: keep a ptr to the (malloc'd) memory of matches originally 1680 * generated from cs_find(). the matches are originally lines directly 1681 * from cscope output, but transformed to look like something out of a 1682 * ctags. see cs_make_vim_style_matches for more details. 1683 * 1684 * Get: used only from cs_fgets(), this simulates a vim_fgets() to return 1685 * the next line from the cscope output. it basically keeps track of which 1686 * lines have been "used" and returns the next one. 1687 * 1688 * Free: frees up everything and resets 1689 * 1690 * Print: prints the tags 1691 */ 1692 static char * 1693 cs_manage_matches( 1694 char **matches, 1695 char **contexts, 1696 int totmatches, 1697 mcmd_e cmd) 1698 { 1699 static char **mp = NULL; 1700 static char **cp = NULL; 1701 static int cnt = -1; 1702 static int next = -1; 1703 char *p = NULL; 1704 1705 switch (cmd) 1706 { 1707 case Store: 1708 assert(matches != NULL); 1709 assert(totmatches > 0); 1710 if (mp != NULL || cp != NULL) 1711 (void)cs_manage_matches(NULL, NULL, -1, Free); 1712 mp = matches; 1713 cp = contexts; 1714 cnt = totmatches; 1715 next = 0; 1716 break; 1717 case Get: 1718 if (next >= cnt) 1719 return NULL; 1720 1721 p = mp[next]; 1722 next++; 1723 break; 1724 case Free: 1725 if (mp != NULL) 1726 { 1727 if (cnt > 0) 1728 while (cnt--) 1729 { 1730 vim_free(mp[cnt]); 1731 if (cp != NULL) 1732 vim_free(cp[cnt]); 1733 } 1734 vim_free(mp); 1735 vim_free(cp); 1736 } 1737 mp = NULL; 1738 cp = NULL; 1739 cnt = 0; 1740 next = 0; 1741 break; 1742 case Print: 1743 cs_print_tags_priv(mp, cp, cnt); 1744 break; 1745 default: /* should not reach here */ 1746 IEMSG(_("E570: fatal error in cs_manage_matches")); 1747 return NULL; 1748 } 1749 1750 return p; 1751 } /* cs_manage_matches */ 1752 1753 1754 /* 1755 * Parse cscope output. 1756 */ 1757 static char * 1758 cs_parse_results( 1759 int cnumber, 1760 char *buf, 1761 int bufsize, 1762 char **context, 1763 char **linenumber, 1764 char **search) 1765 { 1766 int ch; 1767 char *p; 1768 char *name; 1769 1770 if (fgets(buf, bufsize, csinfo[cnumber].fr_fp) == NULL) 1771 { 1772 if (feof(csinfo[cnumber].fr_fp)) 1773 errno = EIO; 1774 1775 cs_reading_emsg(cnumber); 1776 1777 return NULL; 1778 } 1779 1780 /* If the line's too long for the buffer, discard it. */ 1781 if ((p = strchr(buf, '\n')) == NULL) 1782 { 1783 while ((ch = getc(csinfo[cnumber].fr_fp)) != EOF && ch != '\n') 1784 ; 1785 return NULL; 1786 } 1787 *p = '\0'; 1788 1789 /* 1790 * cscope output is in the following format: 1791 * 1792 * <filename> <context> <line number> <pattern> 1793 */ 1794 if ((name = strtok((char *)buf, (const char *)" ")) == NULL) 1795 return NULL; 1796 if ((*context = strtok(NULL, (const char *)" ")) == NULL) 1797 return NULL; 1798 if ((*linenumber = strtok(NULL, (const char *)" ")) == NULL) 1799 return NULL; 1800 *search = *linenumber + strlen(*linenumber) + 1; /* +1 to skip \0 */ 1801 1802 /* --- nvi --- 1803 * If the file is older than the cscope database, that is, 1804 * the database was built since the file was last modified, 1805 * or there wasn't a search string, use the line number. 1806 */ 1807 if (strcmp(*search, "<unknown>") == 0) 1808 *search = NULL; 1809 1810 name = cs_resolve_file(cnumber, name); 1811 return name; 1812 } 1813 1814 #ifdef FEAT_QUICKFIX 1815 /* 1816 * Write cscope find results to file. 1817 */ 1818 static void 1819 cs_file_results(FILE *f, int *nummatches_a) 1820 { 1821 int i, j; 1822 char *buf; 1823 char *search, *slno; 1824 char *fullname; 1825 char *cntx; 1826 char *context; 1827 1828 buf = (char *)alloc(CSREAD_BUFSIZE); 1829 if (buf == NULL) 1830 return; 1831 1832 for (i = 0; i < csinfo_size; i++) 1833 { 1834 if (nummatches_a[i] < 1) 1835 continue; 1836 1837 for (j = 0; j < nummatches_a[i]; j++) 1838 { 1839 if ((fullname = cs_parse_results(i, buf, CSREAD_BUFSIZE, &cntx, 1840 &slno, &search)) == NULL) 1841 continue; 1842 1843 context = (char *)alloc((unsigned)strlen(cntx)+5); 1844 if (context == NULL) 1845 continue; 1846 1847 if (strcmp(cntx, "<global>")==0) 1848 strcpy(context, "<<global>>"); 1849 else 1850 sprintf(context, "<<%s>>", cntx); 1851 1852 if (search == NULL) 1853 fprintf(f, "%s\t%s\t%s\n", fullname, slno, context); 1854 else 1855 fprintf(f, "%s\t%s\t%s %s\n", fullname, slno, context, search); 1856 1857 vim_free(context); 1858 vim_free(fullname); 1859 } /* for all matches */ 1860 1861 (void)cs_read_prompt(i); 1862 1863 } /* for all cscope connections */ 1864 vim_free(buf); 1865 } 1866 #endif 1867 1868 /* 1869 * Get parsed cscope output and calls cs_make_vim_style_matches to convert 1870 * into ctags format. 1871 * When there are no matches sets "*matches_p" to NULL. 1872 */ 1873 static void 1874 cs_fill_results( 1875 char *tagstr, 1876 int totmatches, 1877 int *nummatches_a, 1878 char ***matches_p, 1879 char ***cntxts_p, 1880 int *matched) 1881 { 1882 int i, j; 1883 char *buf; 1884 char *search, *slno; 1885 int totsofar = 0; 1886 char **matches = NULL; 1887 char **cntxts = NULL; 1888 char *fullname; 1889 char *cntx; 1890 1891 assert(totmatches > 0); 1892 1893 buf = (char *)alloc(CSREAD_BUFSIZE); 1894 if (buf == NULL) 1895 return; 1896 1897 if ((matches = (char **)alloc(sizeof(char *) * totmatches)) == NULL) 1898 goto parse_out; 1899 if ((cntxts = (char **)alloc(sizeof(char *) * totmatches)) == NULL) 1900 goto parse_out; 1901 1902 for (i = 0; i < csinfo_size; i++) 1903 { 1904 if (nummatches_a[i] < 1) 1905 continue; 1906 1907 for (j = 0; j < nummatches_a[i]; j++) 1908 { 1909 if ((fullname = cs_parse_results(i, buf, CSREAD_BUFSIZE, &cntx, 1910 &slno, &search)) == NULL) 1911 continue; 1912 1913 matches[totsofar] = cs_make_vim_style_matches(fullname, slno, 1914 search, tagstr); 1915 1916 vim_free(fullname); 1917 1918 if (strcmp(cntx, "<global>") == 0) 1919 cntxts[totsofar] = NULL; 1920 else 1921 /* note: if vim_strsave returns NULL, then the context 1922 * will be "<global>", which is misleading. 1923 */ 1924 cntxts[totsofar] = (char *)vim_strsave((char_u *)cntx); 1925 1926 if (matches[totsofar] != NULL) 1927 totsofar++; 1928 1929 } /* for all matches */ 1930 1931 (void)cs_read_prompt(i); 1932 1933 } /* for all cscope connections */ 1934 1935 parse_out: 1936 if (totsofar == 0) 1937 { 1938 /* No matches, free the arrays and return NULL in "*matches_p". */ 1939 vim_free(matches); 1940 matches = NULL; 1941 vim_free(cntxts); 1942 cntxts = NULL; 1943 } 1944 *matched = totsofar; 1945 *matches_p = matches; 1946 *cntxts_p = cntxts; 1947 1948 vim_free(buf); 1949 } /* cs_fill_results */ 1950 1951 1952 /* get the requested path components */ 1953 static char * 1954 cs_pathcomponents(char *path) 1955 { 1956 int i; 1957 char *s; 1958 1959 if (p_cspc == 0) 1960 return path; 1961 1962 s = path + strlen(path) - 1; 1963 for (i = 0; i < p_cspc; ++i) 1964 while (s > path && *--s != '/' 1965 #ifdef WIN32 1966 && *--s != '\\' 1967 #endif 1968 ) 1969 ; 1970 if ((s > path && *s == '/') 1971 #ifdef WIN32 1972 || (s > path && *s == '\\') 1973 #endif 1974 ) 1975 ++s; 1976 return s; 1977 } 1978 1979 /* 1980 * Called from cs_manage_matches(). 1981 */ 1982 static void 1983 cs_print_tags_priv(char **matches, char **cntxts, int num_matches) 1984 { 1985 char *buf = NULL; 1986 char *t_buf; 1987 int bufsize = 0; /* Track available bufsize */ 1988 int newsize = 0; 1989 char *ptag; 1990 char *fname, *lno, *extra, *tbuf; 1991 int i, idx, num; 1992 char *globalcntx = "GLOBAL"; 1993 char *cntxformat = " <<%s>>"; 1994 char *context; 1995 char *cstag_msg = _("Cscope tag: %s"); 1996 char *csfmt_str = "%4d %6s "; 1997 1998 assert(num_matches > 0); 1999 2000 if ((tbuf = (char *)alloc((unsigned)strlen(matches[0]) + 1)) == NULL) 2001 return; 2002 2003 strcpy(tbuf, matches[0]); 2004 ptag = strtok(tbuf, "\t"); 2005 if (ptag == NULL) 2006 { 2007 vim_free(tbuf); 2008 return; 2009 } 2010 2011 newsize = (int)(strlen(cstag_msg) + strlen(ptag)); 2012 buf = (char *)alloc(newsize); 2013 if (buf != NULL) 2014 { 2015 bufsize = newsize; 2016 (void)sprintf(buf, cstag_msg, ptag); 2017 MSG_PUTS_ATTR(buf, HL_ATTR(HLF_T)); 2018 } 2019 2020 vim_free(tbuf); 2021 2022 MSG_PUTS_ATTR(_("\n # line"), HL_ATTR(HLF_T)); /* strlen is 7 */ 2023 msg_advance(msg_col + 2); 2024 MSG_PUTS_ATTR(_("filename / context / line\n"), HL_ATTR(HLF_T)); 2025 2026 num = 1; 2027 for (i = 0; i < num_matches; i++) 2028 { 2029 idx = i; 2030 2031 /* if we really wanted to, we could avoid this malloc and strcpy 2032 * by parsing matches[i] on the fly and placing stuff into buf 2033 * directly, but that's too much of a hassle 2034 */ 2035 if ((tbuf = (char *)alloc((unsigned)strlen(matches[idx]) + 1)) == NULL) 2036 continue; 2037 (void)strcpy(tbuf, matches[idx]); 2038 2039 if (strtok(tbuf, (const char *)"\t") == NULL 2040 || (fname = strtok(NULL, (const char *)"\t")) == NULL 2041 || (lno = strtok(NULL, (const char *)"\t")) == NULL) 2042 { 2043 vim_free(tbuf); 2044 continue; 2045 } 2046 extra = strtok(NULL, (const char *)"\t"); 2047 2048 lno[strlen(lno)-2] = '\0'; /* ignore ;" at the end */ 2049 2050 /* hopefully 'num' (num of matches) will be less than 10^16 */ 2051 newsize = (int)(strlen(csfmt_str) + 16 + strlen(lno)); 2052 if (bufsize < newsize) 2053 { 2054 t_buf = buf; 2055 buf = (char *)vim_realloc(buf, newsize); 2056 if (buf == NULL) 2057 { 2058 bufsize = 0; 2059 vim_free(t_buf); 2060 } 2061 else 2062 bufsize = newsize; 2063 } 2064 if (buf != NULL) 2065 { 2066 /* csfmt_str = "%4d %6s "; */ 2067 (void)sprintf(buf, csfmt_str, num, lno); 2068 MSG_PUTS_ATTR(buf, HL_ATTR(HLF_CM)); 2069 } 2070 MSG_PUTS_LONG_ATTR(cs_pathcomponents(fname), HL_ATTR(HLF_CM)); 2071 2072 /* compute the required space for the context */ 2073 if (cntxts[idx] != NULL) 2074 context = cntxts[idx]; 2075 else 2076 context = globalcntx; 2077 newsize = (int)(strlen(context) + strlen(cntxformat)); 2078 2079 if (bufsize < newsize) 2080 { 2081 t_buf = buf; 2082 buf = (char *)vim_realloc(buf, newsize); 2083 if (buf == NULL) 2084 { 2085 bufsize = 0; 2086 vim_free(t_buf); 2087 } 2088 else 2089 bufsize = newsize; 2090 } 2091 if (buf != NULL) 2092 { 2093 (void)sprintf(buf, cntxformat, context); 2094 2095 /* print the context only if it fits on the same line */ 2096 if (msg_col + (int)strlen(buf) >= (int)Columns) 2097 msg_putchar('\n'); 2098 msg_advance(12); 2099 MSG_PUTS_LONG(buf); 2100 msg_putchar('\n'); 2101 } 2102 if (extra != NULL) 2103 { 2104 msg_advance(13); 2105 MSG_PUTS_LONG(extra); 2106 } 2107 2108 vim_free(tbuf); /* only after printing extra due to strtok use */ 2109 2110 if (msg_col) 2111 msg_putchar('\n'); 2112 2113 ui_breakcheck(); 2114 if (got_int) 2115 { 2116 got_int = FALSE; /* don't print any more matches */ 2117 break; 2118 } 2119 2120 num++; 2121 } /* for all matches */ 2122 2123 vim_free(buf); 2124 } /* cs_print_tags_priv */ 2125 2126 2127 /* 2128 * Read a cscope prompt (basically, skip over the ">> "). 2129 */ 2130 static int 2131 cs_read_prompt(int i) 2132 { 2133 int ch; 2134 char *buf = NULL; /* buffer for possible error message from cscope */ 2135 int bufpos = 0; 2136 char *cs_emsg; 2137 int maxlen; 2138 static char *eprompt = "Press the RETURN key to continue:"; 2139 int epromptlen = (int)strlen(eprompt); 2140 int n; 2141 2142 cs_emsg = _("E609: Cscope error: %s"); 2143 /* compute maximum allowed len for Cscope error message */ 2144 maxlen = (int)(IOSIZE - strlen(cs_emsg)); 2145 2146 for (;;) 2147 { 2148 while ((ch = getc(csinfo[i].fr_fp)) != EOF && ch != CSCOPE_PROMPT[0]) 2149 /* if there is room and char is printable */ 2150 if (bufpos < maxlen - 1 && vim_isprintc(ch)) 2151 { 2152 if (buf == NULL) /* lazy buffer allocation */ 2153 buf = (char *)alloc(maxlen); 2154 if (buf != NULL) 2155 { 2156 /* append character to the message */ 2157 buf[bufpos++] = ch; 2158 buf[bufpos] = NUL; 2159 if (bufpos >= epromptlen 2160 && strcmp(&buf[bufpos - epromptlen], eprompt) == 0) 2161 { 2162 /* remove eprompt from buf */ 2163 buf[bufpos - epromptlen] = NUL; 2164 2165 /* print message to user */ 2166 (void)EMSG2(cs_emsg, buf); 2167 2168 /* send RETURN to cscope */ 2169 (void)putc('\n', csinfo[i].to_fp); 2170 (void)fflush(csinfo[i].to_fp); 2171 2172 /* clear buf */ 2173 bufpos = 0; 2174 buf[bufpos] = NUL; 2175 } 2176 } 2177 } 2178 2179 for (n = 0; n < (int)strlen(CSCOPE_PROMPT); ++n) 2180 { 2181 if (n > 0) 2182 ch = getc(csinfo[i].fr_fp); 2183 if (ch == EOF) 2184 { 2185 PERROR("cs_read_prompt EOF"); 2186 if (buf != NULL && buf[0] != NUL) 2187 (void)EMSG2(cs_emsg, buf); 2188 else if (p_csverbose) 2189 cs_reading_emsg(i); /* don't have additional information */ 2190 cs_release_csp(i, TRUE); 2191 vim_free(buf); 2192 return CSCOPE_FAILURE; 2193 } 2194 2195 if (ch != CSCOPE_PROMPT[n]) 2196 { 2197 ch = EOF; 2198 break; 2199 } 2200 } 2201 2202 if (ch == EOF) 2203 continue; /* didn't find the prompt */ 2204 break; /* did find the prompt */ 2205 } 2206 2207 vim_free(buf); 2208 return CSCOPE_SUCCESS; 2209 } 2210 2211 #if defined(UNIX) && defined(SIGALRM) 2212 /* 2213 * Used to catch and ignore SIGALRM below. 2214 */ 2215 static RETSIGTYPE 2216 sig_handler SIGDEFARG(sigarg) 2217 { 2218 /* do nothing */ 2219 SIGRETURN; 2220 } 2221 #endif 2222 2223 /* 2224 * Does the actual free'ing for the cs ptr with an optional flag of whether 2225 * or not to free the filename. Called by cs_kill and cs_reset. 2226 */ 2227 static void 2228 cs_release_csp(int i, int freefnpp) 2229 { 2230 /* 2231 * Trying to exit normally (not sure whether it is fit to UNIX cscope 2232 */ 2233 if (csinfo[i].to_fp != NULL) 2234 { 2235 (void)fputs("q\n", csinfo[i].to_fp); 2236 (void)fflush(csinfo[i].to_fp); 2237 } 2238 #if defined(UNIX) 2239 { 2240 int waitpid_errno; 2241 int pstat; 2242 pid_t pid; 2243 2244 # if defined(HAVE_SIGACTION) 2245 struct sigaction sa, old; 2246 2247 /* Use sigaction() to limit the waiting time to two seconds. */ 2248 sigemptyset(&sa.sa_mask); 2249 sa.sa_handler = sig_handler; 2250 # ifdef SA_NODEFER 2251 sa.sa_flags = SA_NODEFER; 2252 # else 2253 sa.sa_flags = 0; 2254 # endif 2255 sigaction(SIGALRM, &sa, &old); 2256 alarm(2); /* 2 sec timeout */ 2257 2258 /* Block until cscope exits or until timer expires */ 2259 pid = waitpid(csinfo[i].pid, &pstat, 0); 2260 waitpid_errno = errno; 2261 2262 /* cancel pending alarm if still there and restore signal */ 2263 alarm(0); 2264 sigaction(SIGALRM, &old, NULL); 2265 # else 2266 int waited; 2267 2268 /* Can't use sigaction(), loop for two seconds. First yield the CPU 2269 * to give cscope a chance to exit quickly. */ 2270 sleep(0); 2271 for (waited = 0; waited < 40; ++waited) 2272 { 2273 pid = waitpid(csinfo[i].pid, &pstat, WNOHANG); 2274 waitpid_errno = errno; 2275 if (pid != 0) 2276 break; /* break unless the process is still running */ 2277 mch_delay(50L, FALSE); /* sleep 50 ms */ 2278 } 2279 # endif 2280 /* 2281 * If the cscope process is still running: kill it. 2282 * Safety check: If the PID would be zero here, the entire X session 2283 * would be killed. -1 and 1 are dangerous as well. 2284 */ 2285 if (pid < 0 && csinfo[i].pid > 1) 2286 { 2287 # ifdef ECHILD 2288 int alive = TRUE; 2289 2290 if (waitpid_errno == ECHILD) 2291 { 2292 /* 2293 * When using 'vim -g', vim is forked and cscope process is 2294 * no longer a child process but a sibling. So waitpid() 2295 * fails with errno being ECHILD (No child processes). 2296 * Don't send SIGKILL to cscope immediately but wait 2297 * (polling) for it to exit normally as result of sending 2298 * the "q" command, hence giving it a chance to clean up 2299 * its temporary files. 2300 */ 2301 int waited; 2302 2303 sleep(0); 2304 for (waited = 0; waited < 40; ++waited) 2305 { 2306 /* Check whether cscope process is still alive */ 2307 if (kill(csinfo[i].pid, 0) != 0) 2308 { 2309 alive = FALSE; /* cscope process no longer exists */ 2310 break; 2311 } 2312 mch_delay(50L, FALSE); /* sleep 50ms */ 2313 } 2314 } 2315 if (alive) 2316 # endif 2317 { 2318 kill(csinfo[i].pid, SIGKILL); 2319 (void)waitpid(csinfo[i].pid, &pstat, 0); 2320 } 2321 } 2322 } 2323 #else /* !UNIX */ 2324 if (csinfo[i].hProc != NULL) 2325 { 2326 /* Give cscope a chance to exit normally */ 2327 if (WaitForSingleObject(csinfo[i].hProc, 1000) == WAIT_TIMEOUT) 2328 TerminateProcess(csinfo[i].hProc, 0); 2329 CloseHandle(csinfo[i].hProc); 2330 } 2331 #endif 2332 2333 if (csinfo[i].fr_fp != NULL) 2334 (void)fclose(csinfo[i].fr_fp); 2335 if (csinfo[i].to_fp != NULL) 2336 (void)fclose(csinfo[i].to_fp); 2337 2338 if (freefnpp) 2339 { 2340 vim_free(csinfo[i].fname); 2341 vim_free(csinfo[i].ppath); 2342 vim_free(csinfo[i].flags); 2343 } 2344 2345 clear_csinfo(i); 2346 } /* cs_release_csp */ 2347 2348 2349 /* 2350 * Calls cs_kill on all cscope connections then reinits. 2351 */ 2352 static int 2353 cs_reset(exarg_T *eap UNUSED) 2354 { 2355 char **dblist = NULL, **pplist = NULL, **fllist = NULL; 2356 int i; 2357 char buf[20]; /* for sprintf " (#%d)" */ 2358 2359 if (csinfo_size == 0) 2360 return CSCOPE_SUCCESS; 2361 2362 /* malloc our db and ppath list */ 2363 dblist = (char **)alloc(csinfo_size * sizeof(char *)); 2364 pplist = (char **)alloc(csinfo_size * sizeof(char *)); 2365 fllist = (char **)alloc(csinfo_size * sizeof(char *)); 2366 if (dblist == NULL || pplist == NULL || fllist == NULL) 2367 { 2368 vim_free(dblist); 2369 vim_free(pplist); 2370 vim_free(fllist); 2371 return CSCOPE_FAILURE; 2372 } 2373 2374 for (i = 0; i < csinfo_size; i++) 2375 { 2376 dblist[i] = csinfo[i].fname; 2377 pplist[i] = csinfo[i].ppath; 2378 fllist[i] = csinfo[i].flags; 2379 if (csinfo[i].fname != NULL) 2380 cs_release_csp(i, FALSE); 2381 } 2382 2383 /* rebuild the cscope connection list */ 2384 for (i = 0; i < csinfo_size; i++) 2385 { 2386 if (dblist[i] != NULL) 2387 { 2388 cs_add_common(dblist[i], pplist[i], fllist[i]); 2389 if (p_csverbose) 2390 { 2391 /* don't use smsg_attr() because we want to display the 2392 * connection number in the same line as 2393 * "Added cscope database..." 2394 */ 2395 sprintf(buf, " (#%d)", i); 2396 MSG_PUTS_ATTR(buf, HL_ATTR(HLF_R)); 2397 } 2398 } 2399 vim_free(dblist[i]); 2400 vim_free(pplist[i]); 2401 vim_free(fllist[i]); 2402 } 2403 vim_free(dblist); 2404 vim_free(pplist); 2405 vim_free(fllist); 2406 2407 if (p_csverbose) 2408 MSG_ATTR(_("All cscope databases reset"), HL_ATTR(HLF_R) | MSG_HIST); 2409 return CSCOPE_SUCCESS; 2410 } /* cs_reset */ 2411 2412 2413 /* 2414 * Construct the full pathname to a file found in the cscope database. 2415 * (Prepends ppath, if there is one and if it's not already prepended, 2416 * otherwise just uses the name found.) 2417 * 2418 * We need to prepend the prefix because on some cscope's (e.g., the one that 2419 * ships with Solaris 2.6), the output never has the prefix prepended. 2420 * Contrast this with my development system (Digital Unix), which does. 2421 */ 2422 static char * 2423 cs_resolve_file(int i, char *name) 2424 { 2425 char *fullname; 2426 int len; 2427 char_u *csdir = NULL; 2428 2429 /* 2430 * Ppath is freed when we destroy the cscope connection. 2431 * Fullname is freed after cs_make_vim_style_matches, after it's been 2432 * copied into the tag buffer used by Vim. 2433 */ 2434 len = (int)(strlen(name) + 2); 2435 if (csinfo[i].ppath != NULL) 2436 len += (int)strlen(csinfo[i].ppath); 2437 else if (p_csre && csinfo[i].fname != NULL) 2438 { 2439 /* If 'cscoperelative' is set and ppath is not set, use cscope.out 2440 * path in path resolution. */ 2441 csdir = alloc(MAXPATHL); 2442 if (csdir != NULL) 2443 { 2444 vim_strncpy(csdir, (char_u *)csinfo[i].fname, 2445 gettail((char_u *)csinfo[i].fname) 2446 - (char_u *)csinfo[i].fname); 2447 len += (int)STRLEN(csdir); 2448 } 2449 } 2450 2451 /* Note/example: this won't work if the cscope output already starts 2452 * "../.." and the prefix path is also "../..". if something like this 2453 * happens, you are screwed up and need to fix how you're using cscope. */ 2454 if (csinfo[i].ppath != NULL 2455 && (strncmp(name, csinfo[i].ppath, strlen(csinfo[i].ppath)) != 0) 2456 && (name[0] != '/') 2457 #ifdef WIN32 2458 && name[0] != '\\' && name[1] != ':' 2459 #endif 2460 ) 2461 { 2462 if ((fullname = (char *)alloc(len)) != NULL) 2463 (void)sprintf(fullname, "%s/%s", csinfo[i].ppath, name); 2464 } 2465 else if (csdir != NULL && csinfo[i].fname != NULL && *csdir != NUL) 2466 { 2467 /* Check for csdir to be non empty to avoid empty path concatenated to 2468 * cscope output. */ 2469 fullname = (char *)concat_fnames(csdir, (char_u *)name, TRUE); 2470 } 2471 else 2472 { 2473 fullname = (char *)vim_strsave((char_u *)name); 2474 } 2475 2476 vim_free(csdir); 2477 return fullname; 2478 } 2479 2480 2481 /* 2482 * Show all cscope connections. 2483 */ 2484 static int 2485 cs_show(exarg_T *eap UNUSED) 2486 { 2487 short i; 2488 if (cs_cnt_connections() == 0) 2489 MSG_PUTS(_("no cscope connections\n")); 2490 else 2491 { 2492 MSG_PUTS_ATTR( 2493 _(" # pid database name prepend path\n"), 2494 HL_ATTR(HLF_T)); 2495 for (i = 0; i < csinfo_size; i++) 2496 { 2497 if (csinfo[i].fname == NULL) 2498 continue; 2499 2500 if (csinfo[i].ppath != NULL) 2501 (void)smsg((char_u *)"%2d %-5ld %-34s %-32s", 2502 i, (long)csinfo[i].pid, csinfo[i].fname, csinfo[i].ppath); 2503 else 2504 (void)smsg((char_u *)"%2d %-5ld %-34s <none>", 2505 i, (long)csinfo[i].pid, csinfo[i].fname); 2506 } 2507 } 2508 2509 wait_return(TRUE); 2510 return CSCOPE_SUCCESS; 2511 } /* cs_show */ 2512 2513 2514 /* 2515 * Only called when VIM exits to quit any cscope sessions. 2516 */ 2517 void 2518 cs_end(void) 2519 { 2520 int i; 2521 2522 for (i = 0; i < csinfo_size; i++) 2523 cs_release_csp(i, TRUE); 2524 vim_free(csinfo); 2525 csinfo_size = 0; 2526 } 2527 2528 #endif /* FEAT_CSCOPE */ 2529 2530 /* the end */ 2531