Mercurial > vim
annotate src/if_sniff.c @ 7662:4d34891e98f4 v7.4.1130
commit https://github.com/vim/vim/commit/61ff4dd6a4d47bd32383fe28087be2b37dec53f4
Author: Bram Moolenaar <Bram@vim.org>
Date: Mon Jan 18 20:30:17 2016 +0100
patch 7.4.1130
Problem: Memory leak in :vimgrep.
Solution: Call FreeWild(). (Yegappan Lakshmanan)
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Mon, 18 Jan 2016 20:45:04 +0100 |
| parents | 2ebc20378f68 |
| children | 37c929c4a073 |
| rev | line source |
|---|---|
| 7 | 1 /* vi:set ts=8 sts=4 sw=4: |
| 2 * | |
| 3 * if_sniff.c Interface between Vim and SNiFF+ | |
| 4 * | |
| 5 * See README.txt for an overview of the Vim source code. | |
| 6 */ | |
| 7 | |
| 8 #include "vim.h" | |
| 9 | |
| 10 #ifdef WIN32 | |
| 11 # include <stdio.h> | |
| 12 # include <process.h> | |
| 13 # include <string.h> | |
| 14 # include <assert.h> | |
| 15 #else | |
| 16 # ifdef FEAT_GUI_X11 | |
| 17 # include "gui_x11.pro" | |
| 18 # endif | |
| 19 # include "os_unixx.h" | |
| 20 #endif | |
| 21 | |
| 22 static int sniffemacs_pid; | |
| 23 | |
| 24 int fd_from_sniff; | |
| 25 int sniff_connected = 0; | |
| 26 int sniff_request_waiting = 0; | |
| 27 int want_sniff_request = 0; | |
| 28 | |
| 29 #define MAX_REQUEST_LEN 512 | |
| 30 | |
| 31 #define NEED_SYMBOL 2 | |
| 32 #define EMPTY_SYMBOL 4 | |
| 33 #define NEED_FILE 8 | |
| 34 #define SILENT 16 | |
| 35 #define DISCONNECT 32 | |
| 36 #define CONNECT 64 | |
| 37 | |
| 38 #define RQ_NONE 0 | |
| 39 #define RQ_SIMPLE 1 | |
| 40 #define RQ_CONTEXT NEED_FILE + NEED_SYMBOL | |
| 41 #define RQ_SCONTEXT NEED_FILE + NEED_SYMBOL + EMPTY_SYMBOL | |
| 42 #define RQ_NOSYMBOL NEED_FILE | |
| 43 #define RQ_SILENT RQ_NOSYMBOL + SILENT | |
| 44 #define RQ_CONNECT RQ_NONE + CONNECT | |
| 45 #define RQ_DISCONNECT RQ_SIMPLE + DISCONNECT | |
| 46 | |
| 47 struct sn_cmd | |
| 48 { | |
| 49 char *cmd_name; | |
| 50 char cmd_code; | |
| 51 char *cmd_msg; | |
| 52 int cmd_type; | |
| 53 }; | |
| 54 | |
| 55 struct sn_cmd_list | |
| 56 { | |
| 57 struct sn_cmd* sniff_cmd; | |
| 58 struct sn_cmd_list* next_cmd; | |
| 59 }; | |
| 60 | |
| 61 static struct sn_cmd sniff_cmds[] = | |
| 62 { | |
| 63 { "toggle", 'e', N_("Toggle implementation/definition"),RQ_SCONTEXT }, | |
| 64 { "superclass", 's', N_("Show base class of"), RQ_CONTEXT }, | |
| 65 { "overridden", 'm', N_("Show overridden member function"),RQ_SCONTEXT }, | |
| 66 { "retrieve-file", 'r', N_("Retrieve from file"), RQ_CONTEXT }, | |
| 67 { "retrieve-project",'p', N_("Retrieve from project"), RQ_CONTEXT }, | |
| 68 { "retrieve-all-projects", | |
| 69 'P', N_("Retrieve from all projects"), RQ_CONTEXT }, | |
| 70 { "retrieve-next", 'R', N_("Retrieve"), RQ_CONTEXT }, | |
| 71 { "goto-symbol", 'g', N_("Show source of"), RQ_CONTEXT }, | |
| 72 { "find-symbol", 'f', N_("Find symbol"), RQ_CONTEXT }, | |
| 73 { "browse-class", 'w', N_("Browse class"), RQ_CONTEXT }, | |
| 74 { "hierarchy", 't', N_("Show class in hierarchy"), RQ_CONTEXT }, | |
| 75 { "restr-hier", 'T', N_("Show class in restricted hierarchy"),RQ_CONTEXT }, | |
| 76 { "xref-to", 'x', N_("Xref refers to"), RQ_CONTEXT }, | |
| 77 { "xref-by", 'X', N_("Xref referred by"), RQ_CONTEXT }, | |
| 78 { "xref-has", 'c', N_("Xref has a"), RQ_CONTEXT }, | |
| 79 { "xref-used-by", 'C', N_("Xref used by"), RQ_CONTEXT }, | |
| 80 { "show-docu", 'd', N_("Show docu of"), RQ_CONTEXT }, | |
| 81 { "gen-docu", 'D', N_("Generate docu for"), RQ_CONTEXT }, | |
| 82 { "connect", 'y', NULL, RQ_CONNECT }, | |
| 83 { "disconnect", 'q', NULL, RQ_DISCONNECT }, | |
| 84 { "font-info", 'z', NULL, RQ_SILENT }, | |
| 85 { "update", 'u', NULL, RQ_SILENT }, | |
| 86 { NULL, '\0', NULL, 0} | |
| 87 }; | |
| 88 | |
| 89 | |
| 90 static char *SniffEmacs[2] = {"sniffemacs", (char *)NULL}; /* Yes, Emacs! */ | |
| 91 static int fd_to_sniff; | |
| 92 static int sniff_will_disconnect = 0; | |
| 93 static char msg_sniff_disconnect[] = N_("Cannot connect to SNiFF+. Check environment (sniffemacs must be found in $PATH).\n"); | |
| 94 static char sniff_rq_sep[] = " "; | |
| 95 static struct sn_cmd_list *sniff_cmd_ext = NULL; | |
| 96 | |
| 97 /* Initializing vim commands | |
| 98 * executed each time vim connects to Sniff | |
| 99 */ | |
| 100 static char *init_cmds[]= { | |
| 101 "augroup sniff", | |
| 102 "autocmd BufWritePost * sniff update", | |
| 103 "autocmd BufReadPost * sniff font-info", | |
| 104 "autocmd VimLeave * sniff disconnect", | |
| 105 "augroup END", | |
| 106 | |
| 107 "let g:sniff_connected = 1", | |
| 108 | |
| 109 "if ! exists('g:sniff_mappings_sourced')|" | |
| 110 "if ! exists('g:sniff_mappings')|" | |
| 111 "if exists('$SNIFF_DIR4')|" | |
| 112 "let g:sniff_mappings='$SNIFF_DIR4/config/integrations/vim/sniff.vim'|" | |
| 113 "else|" | |
| 114 "let g:sniff_mappings='$SNIFF_DIR/config/sniff.vim'|" | |
| 115 "endif|" | |
| 116 "endif|" | |
| 117 "let g:sniff_mappings=expand(g:sniff_mappings)|" | |
| 118 "if filereadable(g:sniff_mappings)|" | |
| 119 "execute 'source' g:sniff_mappings|" | |
| 120 "let g:sniff_mappings_sourced=1|" | |
| 121 "endif|" | |
| 122 "endif", | |
| 123 | |
| 124 NULL | |
| 125 }; | |
| 126 | |
| 127 /*-------- Function Prototypes ----------------------------------*/ | |
| 128 | |
| 129 static int ConnectToSniffEmacs __ARGS((void)); | |
| 130 static void sniff_connect __ARGS((void)); | |
| 131 static void HandleSniffRequest __ARGS((char* buffer)); | |
| 132 static int get_request __ARGS((int fd, char *buf, int maxlen)); | |
| 133 static void WriteToSniff __ARGS((char *str)); | |
| 134 static void SendRequest __ARGS((struct sn_cmd *command, char* symbol)); | |
| 135 static void vi_msg __ARGS((char *)); | |
| 136 static void vi_error_msg __ARGS((char *)); | |
| 137 static char *vi_symbol_under_cursor __ARGS((void)); | |
| 138 static void vi_open_file __ARGS((char *)); | |
| 139 static char *vi_buffer_name __ARGS((void)); | |
| 140 static buf_T *vi_find_buffer __ARGS((char *)); | |
| 141 static void vi_exec_cmd __ARGS((char *)); | |
| 142 static void vi_set_cursor_pos __ARGS((long char_nr)); | |
| 143 static long vi_cursor_pos __ARGS((void)); | |
| 144 | |
| 145 /* debug trace */ | |
| 146 #if 0 | |
| 147 static FILE* _tracefile = NULL; | |
| 148 #define SNIFF_TRACE_OPEN(file) if (!_tracefile) _tracefile = fopen(file, "w") | |
| 149 #define SNIFF_TRACE(msg) fprintf(_tracefile, msg); fflush(_tracefile); | |
| 150 #define SNIFF_TRACE1(msg, arg) fprintf(_tracefile, msg,arg); fflush(_tracefile); | |
| 151 #define SNIFF_TRACE_CLOSE fclose(_tracefile); _tracefile=NULL; | |
| 152 #else | |
| 153 #define SNIFF_TRACE_OPEN(file) | |
| 154 #define SNIFF_TRACE(msg) | |
| 155 #define SNIFF_TRACE1(msg, arg) | |
| 156 #define SNIFF_TRACE_CLOSE | |
| 157 #endif | |
| 158 | |
| 159 /*-------- Windows Only Declarations -----------------------------*/ | |
| 160 #ifdef WIN32 | |
| 161 | |
| 162 static int sniff_request_processed=1; | |
| 163 static HANDLE sniffemacs_handle=NULL; | |
| 164 static HANDLE readthread_handle=NULL; | |
| 165 static HANDLE handle_to_sniff=NULL; | |
| 166 static HANDLE handle_from_sniff=NULL; | |
| 167 | |
| 168 struct sniffBufNode | |
| 169 { | |
| 170 struct sniffBufNode *next; | |
| 171 int bufLen; | |
| 172 char buf[MAX_REQUEST_LEN]; | |
| 173 }; | |
| 174 static struct sniffBufNode *sniffBufStart=NULL; | |
| 175 static struct sniffBufNode *sniffBufEnd=NULL; | |
| 176 static HANDLE hBufferMutex=NULL; | |
| 177 | |
| 178 # ifdef FEAT_GUI_W32 | |
| 179 extern HWND s_hwnd; /* gvim's Window handle */ | |
| 180 # endif | |
| 181 /* | |
| 182 * some helper functions for Windows port only | |
| 183 */ | |
| 184 | |
| 185 static HANDLE | |
| 186 ExecuteDetachedProgram(char *szBinary, char *szCmdLine, | |
| 187 HANDLE hStdInput, HANDLE hStdOutput) | |
| 188 { | |
| 189 BOOL bResult; | |
| 190 DWORD nError; | |
| 191 PROCESS_INFORMATION aProcessInformation; | |
| 192 PROCESS_INFORMATION *pProcessInformation= &aProcessInformation; | |
| 193 STARTUPINFO aStartupInfo; | |
| 194 STARTUPINFO *pStartupInfo= &aStartupInfo; | |
| 195 DWORD dwCreationFlags= 0; | |
| 196 char szPath[512]; | |
| 197 HINSTANCE hResult; | |
| 198 | |
| 199 hResult = FindExecutable(szBinary, ".", szPath); | |
| 200 if ((int)hResult <= 32) | |
| 201 { | |
| 202 /* can't find the exe file */ | |
| 203 return NULL; | |
| 204 } | |
| 205 | |
| 206 ZeroMemory(pStartupInfo, sizeof(*pStartupInfo)); | |
| 207 pStartupInfo->dwFlags= STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; | |
| 208 pStartupInfo->hStdInput = hStdInput; | |
| 209 pStartupInfo->hStdOutput = hStdOutput; | |
| 210 pStartupInfo->wShowWindow= SW_HIDE; | |
| 211 pStartupInfo->cb = sizeof(STARTUPINFO); | |
| 212 | |
| 213 bResult= CreateProcess( | |
| 214 szPath, | |
| 215 szCmdLine, | |
| 216 NULL, /* security attr for process */ | |
| 217 NULL, /* security attr for primary thread */ | |
| 218 TRUE, /* DO inherit stdin and stdout */ | |
| 219 dwCreationFlags, /* creation flags */ | |
| 220 NULL, /* environment */ | |
| 221 ".", /* current directory */ | |
| 222 pStartupInfo, /* startup info: NULL crashes */ | |
| 223 pProcessInformation /* process information: NULL crashes */ | |
| 224 ); | |
| 225 nError= GetLastError(); | |
| 226 if (bResult) | |
| 227 { | |
| 228 CloseHandle(pProcessInformation->hThread); | |
| 229 CloseHandle(hStdInput); | |
| 230 CloseHandle(hStdOutput); | |
| 231 return(pProcessInformation->hProcess); | |
| 232 } | |
| 233 else | |
| 234 return(NULL); | |
| 235 } | |
| 236 | |
| 237 /* | |
| 238 * write to the internal Thread / Thread communications buffer. | |
| 239 * Return TRUE if successful, FALSE else. | |
| 240 */ | |
| 241 static BOOL | |
| 242 writeToBuffer(char *msg, int len) | |
| 243 { | |
| 244 DWORD dwWaitResult; /* Request ownership of mutex. */ | |
| 245 struct sniffBufNode *bn; | |
| 246 int bnSize; | |
| 247 | |
| 248 SNIFF_TRACE1("writeToBuffer %d\n", len); | |
| 249 bnSize = sizeof(struct sniffBufNode) - MAX_REQUEST_LEN + len + 1; | |
| 250 if (bnSize < 128) bnSize = 128; /* minimum length to avoid fragmentation */ | |
| 251 bn = (struct sniffBufNode *)malloc(bnSize); | |
| 252 if (!bn) | |
| 253 return FALSE; | |
| 254 | |
| 255 memcpy(bn->buf, msg, len); | |
| 256 bn->buf[len]='\0'; /* terminate CString for added safety */ | |
| 257 bn->next = NULL; | |
| 258 bn->bufLen = len; | |
| 259 /* now, acquire a Mutex for adding the string to our linked list */ | |
| 260 dwWaitResult = WaitForSingleObject( | |
| 261 hBufferMutex, /* handle of mutex */ | |
| 262 1000L); /* one-second time-out interval */ | |
| 263 if (dwWaitResult == WAIT_OBJECT_0) | |
| 264 { | |
| 265 /* The thread got mutex ownership. */ | |
| 266 if (sniffBufEnd) | |
| 267 { | |
| 268 sniffBufEnd->next = bn; | |
| 269 sniffBufEnd = bn; | |
| 270 } | |
| 271 else | |
| 272 sniffBufStart = sniffBufEnd = bn; | |
| 273 /* Release ownership of the mutex object. */ | |
| 274 if (! ReleaseMutex(hBufferMutex)) | |
| 275 { | |
| 276 /* Deal with error. */ | |
| 277 } | |
| 278 return TRUE; | |
| 279 } | |
| 280 | |
| 281 /* Cannot get mutex ownership due to time-out or mutex object abandoned. */ | |
| 282 free(bn); | |
| 283 return FALSE; | |
| 284 } | |
| 285 | |
| 286 /* | |
| 287 * read from the internal Thread / Thread communications buffer. | |
| 288 * Return TRUE if successful, FALSE else. | |
| 289 */ | |
| 290 static int | |
| 291 ReadFromBuffer(char *buf, int maxlen) | |
| 292 { | |
| 293 DWORD dwWaitResult; /* Request ownership of mutex. */ | |
| 294 int theLen; | |
| 295 struct sniffBufNode *bn; | |
| 296 | |
| 297 dwWaitResult = WaitForSingleObject( | |
| 298 hBufferMutex, /* handle of mutex */ | |
| 299 1000L); /* one-second time-out interval */ | |
| 300 if (dwWaitResult == WAIT_OBJECT_0) | |
| 301 { | |
| 302 if (!sniffBufStart) | |
| 303 { | |
| 304 /* all pending Requests Processed */ | |
| 305 theLen = 0; | |
| 306 } | |
| 307 else | |
| 308 { | |
| 309 bn = sniffBufStart; | |
| 310 theLen = bn->bufLen; | |
| 311 SNIFF_TRACE1("ReadFromBuffer %d\n", theLen); | |
| 312 if (theLen >= maxlen) | |
| 313 { | |
| 314 /* notify the user of buffer overflow? */ | |
| 315 theLen = maxlen-1; | |
| 316 } | |
| 317 memcpy(buf, bn->buf, theLen); | |
| 318 buf[theLen] = '\0'; | |
| 319 if (! (sniffBufStart = bn->next)) | |
| 320 { | |
| 321 sniffBufEnd = NULL; | |
| 322 sniff_request_processed = 1; | |
| 323 } | |
| 324 free(bn); | |
| 325 } | |
| 326 if (! ReleaseMutex(hBufferMutex)) | |
| 327 { | |
| 328 /* Deal with error. */ | |
| 329 } | |
| 330 return theLen; | |
| 331 } | |
| 332 | |
| 333 /* Cannot get mutex ownership due to time-out or mutex object abandoned. */ | |
| 334 return -1; | |
| 335 } | |
| 336 | |
| 337 /* on Win32, a separate Thread reads the input pipe. get_request is not needed here. */ | |
| 338 static void __cdecl | |
| 339 SniffEmacsReadThread(void *dummy) | |
| 340 { | |
| 341 static char ReadThreadBuffer[MAX_REQUEST_LEN]; | |
| 342 int ReadThreadLen=0; | |
| 343 int result=0; | |
| 344 int msgLen=0; | |
| 345 char *msgStart, *msgCur; | |
| 346 | |
| 347 SNIFF_TRACE("begin thread\n"); | |
| 348 /* Read from the pipe to SniffEmacs */ | |
| 349 while (sniff_connected) | |
| 350 { | |
| 351 if (!ReadFile(handle_from_sniff, | |
| 352 ReadThreadBuffer + ReadThreadLen, /* acknowledge rest in buffer */ | |
| 353 MAX_REQUEST_LEN - ReadThreadLen, | |
| 354 &result, | |
| 355 NULL)) | |
| 356 { | |
| 357 DWORD err = GetLastError(); | |
| 358 result = -1; | |
| 359 } | |
| 360 | |
| 361 if (result < 0) | |
| 362 { | |
| 363 /* probably sniffemacs died... log the Error? */ | |
| 364 sniff_disconnect(1); | |
| 365 } | |
| 366 else if (result > 0) | |
| 367 { | |
| 368 ReadThreadLen += result-1; /* total length of valid chars */ | |
| 369 for(msgCur=msgStart=ReadThreadBuffer; ReadThreadLen > 0; msgCur++, ReadThreadLen--) | |
| 370 { | |
| 371 if (*msgCur == '\0' || *msgCur == '\r' || *msgCur == '\n') | |
| 372 { | |
| 373 msgLen = msgCur-msgStart; /* don't add the CR/LF chars */ | |
| 374 if (msgLen > 0) | |
| 375 writeToBuffer(msgStart, msgLen); | |
| 376 msgStart = msgCur + 1; /* over-read single CR/LF chars */ | |
| 377 } | |
| 378 } | |
| 379 | |
| 380 /* move incomplete message to beginning of buffer */ | |
| 381 ReadThreadLen = msgCur - msgStart; | |
| 382 if (ReadThreadLen > 0) | |
| 383 mch_memmove(ReadThreadBuffer, msgStart, ReadThreadLen); | |
| 384 | |
| 385 if (sniff_request_processed) | |
| 386 { | |
| 387 /* notify others that new data has arrived */ | |
| 388 sniff_request_processed = 0; | |
| 389 sniff_request_waiting = 1; | |
| 390 #ifdef FEAT_GUI_W32 | |
| 391 PostMessage(s_hwnd, WM_USER, (WPARAM)0, (LPARAM)0); | |
| 392 #endif | |
| 393 } | |
| 394 } | |
| 395 } | |
| 396 SNIFF_TRACE("end thread\n"); | |
| 397 } | |
| 398 #endif /* WIN32 */ | |
| 399 /*-------- End of Windows Only Declarations ------------------------*/ | |
| 400 | |
| 401 | |
| 402 /* ProcessSniffRequests | |
| 403 * Function that should be called from outside | |
| 404 * to process the waiting sniff requests | |
| 405 */ | |
| 406 void | |
| 407 ProcessSniffRequests() | |
| 408 { | |
| 409 static char buf[MAX_REQUEST_LEN]; | |
| 410 int len; | |
| 411 | |
| 412 while (sniff_connected) | |
| 413 { | |
| 414 #ifdef WIN32 | |
| 415 len = ReadFromBuffer(buf, sizeof(buf)); | |
| 416 #else | |
| 417 len = get_request(fd_from_sniff, buf, sizeof(buf)); | |
| 418 #endif | |
| 419 if (len < 0) | |
| 420 { | |
| 421 vi_error_msg(_("E274: Sniff: Error during read. Disconnected")); | |
| 422 sniff_disconnect(1); | |
| 423 break; | |
| 424 } | |
| 425 else if (len > 0) | |
| 426 HandleSniffRequest( buf ); | |
| 427 else | |
| 428 break; | |
| 429 } | |
| 430 | |
| 431 if (sniff_will_disconnect) /* Now the last msg has been processed */ | |
| 432 sniff_disconnect(1); | |
| 433 } | |
| 434 | |
| 435 static struct sn_cmd * | |
| 436 find_sniff_cmd(cmd) | |
| 437 char *cmd; | |
| 438 { | |
| 439 struct sn_cmd *sniff_cmd = NULL; | |
| 440 int i; | |
| 441 for(i=0; sniff_cmds[i].cmd_name; i++) | |
| 442 { | |
| 443 if (!strcmp(cmd, sniff_cmds[i].cmd_name)) | |
| 444 { | |
| 445 sniff_cmd = &sniff_cmds[i]; | |
| 446 break; | |
| 447 } | |
| 448 } | |
| 449 if (!sniff_cmd) | |
| 450 { | |
| 451 struct sn_cmd_list *list = sniff_cmd_ext; | |
| 3935 | 452 while (list) |
| 7 | 453 { |
| 454 if (!strcmp(cmd, list->sniff_cmd->cmd_name)) | |
| 455 { | |
| 456 sniff_cmd = list->sniff_cmd; | |
| 457 break; | |
| 458 } | |
| 459 list = list->next_cmd; | |
| 460 } | |
| 461 } | |
| 462 return sniff_cmd; | |
| 463 } | |
| 464 | |
| 465 static int | |
| 466 add_sniff_cmd(cmd, def, msg) | |
| 467 char *cmd; | |
| 468 char *def; | |
| 469 char *msg; | |
| 470 { | |
| 471 int rc = 0; | |
| 472 if (def != NULL && def[0] != NUL && find_sniff_cmd(cmd) == NULL) | |
| 473 { | |
| 474 struct sn_cmd_list *list = sniff_cmd_ext; | |
| 475 struct sn_cmd *sniff_cmd = (struct sn_cmd*)malloc(sizeof(struct sn_cmd)); | |
| 476 struct sn_cmd_list *cmd_node = (struct sn_cmd_list*)malloc(sizeof(struct sn_cmd_list)); | |
| 477 int rq_type = 0; | |
| 478 | |
| 479 /* unescape message text */ | |
| 480 char *p = msg; | |
| 481 char *end = p+strlen(msg); | |
| 3935 | 482 while (*p) |
| 7 | 483 { |
| 484 if (*p == '\\') | |
| 485 mch_memmove(p,p+1,end-p); | |
| 486 p++; | |
| 487 } | |
| 488 SNIFF_TRACE1("request name = %s\n",cmd); | |
| 489 SNIFF_TRACE1("request def = %s\n",def); | |
| 490 SNIFF_TRACE1("request msg = %s\n",msg); | |
| 491 | |
| 3935 | 492 while (list && list->next_cmd) |
| 7 | 493 list = list->next_cmd; |
| 494 if (!list) | |
| 495 sniff_cmd_ext = cmd_node; | |
| 496 else | |
| 497 list->next_cmd = cmd_node; | |
| 498 | |
| 499 sniff_cmd->cmd_name = cmd; | |
| 500 sniff_cmd->cmd_code = def[0]; | |
| 501 sniff_cmd->cmd_msg = msg; | |
| 502 switch(def[1]) | |
| 503 { | |
| 504 case 'f': | |
| 505 rq_type = RQ_NOSYMBOL; | |
| 506 break; | |
| 507 case 's': | |
| 508 rq_type = RQ_CONTEXT; | |
| 509 break; | |
| 510 case 'S': | |
| 511 rq_type = RQ_SCONTEXT; | |
| 512 break; | |
| 513 default: | |
| 514 rq_type = RQ_SIMPLE; | |
| 515 break; | |
| 516 } | |
| 517 sniff_cmd->cmd_type = rq_type; | |
| 518 cmd_node->sniff_cmd = sniff_cmd; | |
| 519 cmd_node->next_cmd = NULL; | |
| 520 rc = 1; | |
| 521 } | |
| 522 return rc; | |
| 523 } | |
| 524 | |
| 525 /* ex_sniff | |
| 526 * Handle ":sniff" command | |
| 527 */ | |
| 528 void | |
| 529 ex_sniff(eap) | |
| 530 exarg_T *eap; | |
| 531 { | |
| 532 char_u *arg = eap->arg; | |
| 533 char_u *symbol = NULL; | |
| 534 char_u *cmd = NULL; | |
| 535 | |
| 536 SNIFF_TRACE_OPEN("if_sniff.log"); | |
| 537 if (ends_excmd(*arg)) /* no request: print available commands */ | |
| 538 { | |
| 539 int i; | |
| 540 msg_start(); | |
| 541 msg_outtrans_attr((char_u *)"-- SNiFF+ commands --", hl_attr(HLF_T)); | |
| 542 for(i=0; sniff_cmds[i].cmd_name; i++) | |
| 543 { | |
| 544 msg_putchar('\n'); | |
| 545 msg_outtrans((char_u *)":sniff "); | |
| 546 msg_outtrans((char_u *)sniff_cmds[i].cmd_name); | |
| 547 } | |
| 548 msg_putchar('\n'); | |
| 549 msg_outtrans((char_u *)_("SNiFF+ is currently ")); | |
| 550 if (!sniff_connected) | |
| 551 msg_outtrans((char_u *)_("not ")); | |
| 552 msg_outtrans((char_u *)_("connected")); | |
| 553 msg_end(); | |
| 554 } | |
| 555 else /* extract command name and symbol if present */ | |
| 556 { | |
| 557 symbol = skiptowhite(arg); | |
| 558 cmd = vim_strnsave(arg, (int)(symbol-arg)); | |
| 559 symbol = skipwhite(symbol); | |
| 560 if (ends_excmd(*symbol)) | |
| 561 symbol = NULL; | |
| 562 if (!strcmp((char *)cmd, "addcmd")) | |
| 563 { | |
| 564 char_u *def = skiptowhite(symbol); | |
| 565 char_u *name = vim_strnsave(symbol, (int)(def-symbol)); | |
| 566 char_u *msg; | |
| 567 def = skipwhite(def); | |
| 568 msg = skiptowhite(def); | |
| 569 def = vim_strnsave(def, (int)(msg-def)); | |
| 570 msg = skipwhite(msg); | |
| 571 if (ends_excmd(*msg)) | |
| 572 msg = vim_strsave(name); | |
| 573 else | |
| 574 msg = vim_strnsave(msg, (int)(skiptowhite_esc(msg)-msg)); | |
| 575 if (!add_sniff_cmd((char*)name, (char*)def, (char*)msg)) | |
| 576 { | |
| 577 vim_free(msg); | |
| 578 vim_free(def); | |
| 579 vim_free(name); | |
| 580 } | |
| 581 } | |
| 582 else | |
| 583 { | |
| 584 struct sn_cmd* sniff_cmd = find_sniff_cmd((char*)cmd); | |
| 585 if (sniff_cmd) | |
| 586 SendRequest(sniff_cmd, (char *)symbol); | |
| 587 else | |
| 588 EMSG2(_("E275: Unknown SNiFF+ request: %s"), cmd); | |
| 589 } | |
| 590 vim_free(cmd); | |
| 591 } | |
| 592 } | |
| 593 | |
| 594 | |
| 595 static void | |
| 596 sniff_connect() | |
| 597 { | |
| 598 if (sniff_connected) | |
| 599 return; | |
| 600 if (ConnectToSniffEmacs()) | |
| 601 vi_error_msg(_("E276: Error connecting to SNiFF+")); | |
| 602 else | |
| 603 { | |
| 604 int i; | |
| 605 | |
| 606 for (i = 0; init_cmds[i]; i++) | |
| 607 vi_exec_cmd(init_cmds[i]); | |
| 608 } | |
| 609 } | |
| 610 | |
| 611 void | |
| 612 sniff_disconnect(immediately) | |
| 613 int immediately; | |
| 614 { | |
| 615 if (!sniff_connected) | |
| 616 return; | |
| 617 if (immediately) | |
| 618 { | |
| 619 vi_exec_cmd("augroup sniff"); | |
| 620 vi_exec_cmd("au!"); | |
| 621 vi_exec_cmd("augroup END"); | |
| 622 vi_exec_cmd("unlet g:sniff_connected"); | |
| 623 sniff_connected = 0; | |
| 624 want_sniff_request = 0; | |
| 625 sniff_will_disconnect = 0; | |
| 626 #ifdef FEAT_GUI | |
| 627 if (gui.in_use) | |
| 628 gui_mch_wait_for_chars(0L); | |
| 629 #endif | |
| 630 #ifdef WIN32 | |
| 3935 | 631 while (sniffBufStart != NULL) |
| 7 | 632 { |
| 633 struct sniffBufNode *node = sniffBufStart; | |
| 634 sniffBufStart = sniffBufStart->next; | |
| 635 free(node); | |
| 636 } | |
| 637 sniffBufStart = sniffBufEnd = NULL; | |
| 638 sniff_request_processed = 1; | |
| 639 CloseHandle(handle_to_sniff); | |
| 640 CloseHandle(handle_from_sniff); | |
| 641 WaitForSingleObject(sniffemacs_handle, 1000L); | |
| 642 CloseHandle(sniffemacs_handle); | |
| 643 sniffemacs_handle = NULL; | |
| 644 WaitForSingleObject(readthread_handle, 1000L); | |
| 645 readthread_handle = NULL; | |
| 646 CloseHandle(hBufferMutex); | |
| 647 hBufferMutex = NULL; | |
| 648 SNIFF_TRACE_CLOSE; | |
| 649 #else | |
| 650 close(fd_to_sniff); | |
| 651 close(fd_from_sniff); | |
| 652 wait(NULL); | |
| 653 #endif | |
| 654 } | |
| 655 else | |
| 656 { | |
| 657 #ifdef WIN32 | |
|
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658 # if (defined(_MSC_VER) && _MSC_VER >= 1400) |
|
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659 Sleep(2); |
|
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660 # else |
| 7 | 661 _sleep(2); |
|
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|
662 # endif |
| 7 | 663 if (!sniff_request_processed) |
| 664 ProcessSniffRequests(); | |
| 665 #else | |
| 666 sleep(2); /* Incoming msg could disturb edit */ | |
| 667 #endif | |
| 668 sniff_will_disconnect = 1; /* We expect disconnect msg in 2 secs */ | |
| 669 } | |
| 670 } | |
| 671 | |
| 672 | |
| 673 /* ConnectToSniffEmacs | |
| 674 * Connect to Sniff: returns 1 on error | |
| 675 */ | |
| 676 static int | |
| 677 ConnectToSniffEmacs() | |
| 678 { | |
| 679 #ifdef WIN32 /* Windows Version of the Code */ | |
| 680 HANDLE ToSniffEmacs[2], FromSniffEmacs[2]; | |
| 681 SECURITY_ATTRIBUTES sa; | |
| 682 | |
| 683 sa.nLength = sizeof(sa); | |
| 684 sa.lpSecurityDescriptor = NULL; | |
| 685 sa.bInheritHandle = TRUE; | |
| 686 | |
| 687 if (! CreatePipe(&ToSniffEmacs[0], &ToSniffEmacs[1], &sa, 0)) | |
| 688 return 1; | |
| 689 if (! CreatePipe(&FromSniffEmacs[0], &FromSniffEmacs[1], &sa, 0)) | |
| 690 return 1; | |
| 691 | |
| 692 sniffemacs_handle = ExecuteDetachedProgram(SniffEmacs[0], SniffEmacs[0], | |
| 693 ToSniffEmacs[0], FromSniffEmacs[1]); | |
| 694 | |
| 695 if (sniffemacs_handle) | |
| 696 { | |
| 697 handle_to_sniff = ToSniffEmacs[1]; | |
| 698 handle_from_sniff = FromSniffEmacs[0]; | |
| 699 sniff_connected = 1; | |
| 700 hBufferMutex = CreateMutex( | |
| 701 NULL, /* no security attributes */ | |
| 702 FALSE, /* initially not owned */ | |
| 703 "SniffReadBufferMutex"); /* name of mutex */ | |
| 704 if (hBufferMutex == NULL) | |
| 705 { | |
| 706 /* Check for error. */ | |
| 707 } | |
| 708 readthread_handle = (HANDLE)_beginthread(SniffEmacsReadThread, 0, NULL); | |
| 709 return 0; | |
| 710 } | |
| 711 else | |
| 712 { | |
| 713 /* error in spawn() */ | |
| 714 return 1; | |
| 715 } | |
| 716 | |
| 717 #else /* UNIX Version of the Code */ | |
| 718 int ToSniffEmacs[2], FromSniffEmacs[2]; | |
| 719 | |
| 1774 | 720 if (pipe(ToSniffEmacs) != 0) |
| 721 return 1; | |
| 722 if (pipe(FromSniffEmacs) != 0) | |
| 723 return 1; | |
| 7 | 724 |
| 725 /* fork */ | |
| 726 if ((sniffemacs_pid=fork()) == 0) | |
| 727 { | |
| 728 /* child */ | |
| 729 | |
| 730 /* prepare communication pipes */ | |
| 731 close(ToSniffEmacs[1]); | |
| 732 close(FromSniffEmacs[0]); | |
| 733 | |
| 734 dup2(ToSniffEmacs[0],fileno(stdin)); /* write to ToSniffEmacs[1] */ | |
| 735 dup2(FromSniffEmacs[1],fileno(stdout));/* read from FromSniffEmacs[0] */ | |
| 736 | |
| 737 close(ToSniffEmacs[0]); | |
| 738 close(FromSniffEmacs[1]); | |
| 739 | |
| 740 /* start sniffemacs */ | |
| 741 execvp (SniffEmacs[0], SniffEmacs); | |
| 742 { | |
| 743 /* FILE *out = fdopen(FromSniffEmacs[1], "w"); */ | |
| 744 sleep(1); | |
| 745 fputs(_(msg_sniff_disconnect), stdout); | |
| 746 fflush(stdout); | |
| 747 sleep(3); | |
| 748 #ifdef FEAT_GUI | |
| 749 if (gui.in_use) | |
| 750 gui_exit(1); | |
| 751 #endif | |
| 752 exit(1); | |
| 753 } | |
| 754 return 1; | |
| 755 } | |
| 756 else if (sniffemacs_pid > 0) | |
| 757 { | |
| 758 /* parent process */ | |
| 759 close(ToSniffEmacs[0]); | |
| 760 fd_to_sniff = ToSniffEmacs[1]; | |
| 761 close(FromSniffEmacs[1]); | |
| 762 fd_from_sniff = FromSniffEmacs[0]; | |
| 763 sniff_connected = 1; | |
| 764 return 0; | |
| 765 } | |
| 766 else /* error in fork() */ | |
| 767 return 1; | |
| 768 #endif /* UNIX Version of the Code */ | |
| 769 } | |
| 770 | |
| 771 | |
| 772 /* HandleSniffRequest | |
| 773 * Handle one request from SNiFF+ | |
| 774 */ | |
| 775 static void | |
| 776 HandleSniffRequest(buffer) | |
| 777 char *buffer; | |
| 778 { | |
| 779 char VICommand[MAX_REQUEST_LEN]; | |
| 780 char command; | |
| 781 char *arguments; | |
| 782 char *token; | |
| 783 char *argv[3]; | |
| 784 int argc = 0; | |
| 785 buf_T *buf; | |
| 786 | |
| 787 const char *SetTab = "set tabstop=%d"; | |
| 788 const char *SelectBuf = "buf %s"; | |
| 789 const char *DeleteBuf = "bd %s"; | |
| 790 const char *UnloadBuf = "bun %s"; | |
| 791 const char *GotoLine = "%d"; | |
| 792 | |
| 793 command = buffer[0]; | |
| 794 arguments = &buffer[1]; | |
| 795 token = strtok(arguments, sniff_rq_sep); | |
| 3935 | 796 while (argc <3) |
| 7 | 797 { |
| 798 if (token) | |
| 799 { | |
| 800 argv[argc] = (char*)vim_strsave((char_u *)token); | |
| 801 token = strtok(0, sniff_rq_sep); | |
| 802 } | |
| 803 else | |
| 804 argv[argc] = strdup(""); | |
| 805 argc++; | |
| 806 } | |
| 807 | |
| 808 switch (command) | |
| 809 { | |
| 810 case 'o' : /* visit file at char pos */ | |
| 811 case 'O' : /* visit file at line number */ | |
| 812 { | |
| 813 char *file = argv[0]; | |
| 814 int position = atoi(argv[1]); | |
| 815 | |
| 816 buf = vi_find_buffer(file); | |
| 817 setpcmark(); /* insert current pos in jump list [mark.c]*/ | |
| 818 if (!buf) | |
| 819 vi_open_file(file); | |
| 820 else if (buf!=curbuf) | |
| 821 { | |
| 426 | 822 vim_snprintf(VICommand, sizeof(VICommand), |
| 823 (char *)SelectBuf, file); | |
| 7 | 824 vi_exec_cmd(VICommand); |
| 825 } | |
| 826 if (command == 'o') | |
| 827 vi_set_cursor_pos((long)position); | |
| 828 else | |
| 829 { | |
| 426 | 830 vim_snprintf(VICommand, sizeof(VICommand), |
| 831 (char *)GotoLine, (int)position); | |
| 7 | 832 vi_exec_cmd(VICommand); |
| 833 } | |
| 834 checkpcmark(); /* [mark.c] */ | |
| 835 #if defined(FEAT_GUI_X11) || defined(FEAT_GUI_W32) | |
| 836 if (gui.in_use && !gui.in_focus) /* Raise Vim Window */ | |
| 837 { | |
| 838 # ifdef FEAT_GUI_W32 | |
| 839 SetForegroundWindow(s_hwnd); | |
| 840 # else | |
| 841 extern Widget vimShell; | |
| 842 | |
| 843 XSetInputFocus(gui.dpy, XtWindow(vimShell), RevertToNone, | |
| 844 CurrentTime); | |
| 845 XRaiseWindow(gui.dpy, XtWindow(vimShell)); | |
| 846 # endif | |
| 847 } | |
| 848 #endif | |
| 849 break; | |
| 850 } | |
| 851 case 'p' : /* path of file has changed */ | |
| 852 /* when changing from shared to private WS (checkout) */ | |
| 853 { | |
| 854 char *file = argv[0]; | |
| 855 char *new_path = argv[1]; | |
| 856 | |
| 857 buf = vi_find_buffer(file); | |
| 858 if (buf && !buf->b_changed) /* delete buffer only if not modified */ | |
| 859 { | |
| 426 | 860 vim_snprintf(VICommand, sizeof(VICommand), |
| 861 (char *)DeleteBuf, file); | |
| 7 | 862 vi_exec_cmd(VICommand); |
| 863 } | |
| 864 vi_open_file(new_path); | |
| 865 break; | |
| 866 } | |
| 867 case 'w' : /* writability has changed */ | |
| 868 /* Sniff sends request twice, | |
| 869 * but only the last one is the right one */ | |
| 870 { | |
| 871 char *file = argv[0]; | |
| 872 int writable = atoi(argv[1]); | |
| 873 | |
| 874 buf = vi_find_buffer(file); | |
| 875 if (buf) | |
| 876 { | |
| 877 buf->b_p_ro = !writable; | |
| 878 if (buf != curbuf) | |
| 879 { | |
| 880 buf->b_flags |= BF_CHECK_RO + BF_NEVERLOADED; | |
| 881 if (writable && !buf->b_changed) | |
| 882 { | |
| 426 | 883 vim_snprintf(VICommand, sizeof(VICommand), |
| 884 (char *)UnloadBuf, file); | |
| 7 | 885 vi_exec_cmd(VICommand); |
| 886 } | |
| 887 } | |
| 888 else if (writable && !buf->b_changed) | |
| 889 { | |
| 890 vi_exec_cmd("e"); | |
| 891 } | |
| 892 } | |
| 893 break; | |
| 894 } | |
| 895 case 'h' : /* highlight info */ | |
| 896 break; /* not implemented */ | |
| 897 | |
| 898 case 't' : /* Set tab width */ | |
| 899 { | |
| 900 int tab_width = atoi(argv[1]); | |
| 901 | |
| 902 if (tab_width > 0 && tab_width <= 16) | |
| 903 { | |
| 426 | 904 vim_snprintf(VICommand, sizeof(VICommand), |
| 905 (char *)SetTab, tab_width); | |
| 7 | 906 vi_exec_cmd(VICommand); |
| 907 } | |
| 908 break; | |
| 909 } | |
| 910 case '|': | |
| 911 { | |
| 912 /* change the request separator */ | |
| 913 sniff_rq_sep[0] = arguments[0]; | |
| 914 /* echo the request */ | |
| 915 WriteToSniff(buffer); | |
| 916 break; | |
| 917 } | |
| 918 case 'A' : /* Warning/Info msg */ | |
| 919 vi_msg(arguments); | |
| 426 | 920 if (!strncmp(arguments, "Disconnected", 12)) |
| 7 | 921 sniff_disconnect(1); /* unexpected disconnection */ |
| 922 break; | |
| 923 case 'a' : /* Error msg */ | |
| 924 vi_error_msg(arguments); | |
| 426 | 925 if (!strncmp(arguments, "Cannot connect", 14)) |
| 7 | 926 sniff_disconnect(1); |
| 927 break; | |
| 928 | |
| 929 default : | |
| 930 break; | |
| 931 } | |
| 3935 | 932 while (argc) |
| 7 | 933 vim_free(argv[--argc]); |
| 934 } | |
| 935 | |
| 936 | |
| 937 #ifndef WIN32 | |
| 938 /* get_request | |
| 939 * read string from fd up to next newline (excluding the nl), | |
| 940 * returns length of string | |
| 941 * 0 if no data available or no complete line | |
| 942 * <0 on error | |
| 943 */ | |
| 944 static int | |
| 945 get_request(fd, buf, maxlen) | |
| 946 int fd; | |
| 947 char *buf; | |
| 948 int maxlen; | |
| 949 { | |
| 950 static char inbuf[1024]; | |
| 951 static int pos = 0, bytes = 0; | |
| 952 int len; | |
| 953 #ifdef HAVE_SELECT | |
| 954 struct timeval tval; | |
| 955 fd_set rfds; | |
| 956 | |
| 957 FD_ZERO(&rfds); | |
| 958 FD_SET(fd, &rfds); | |
| 959 tval.tv_sec = 0; | |
| 960 tval.tv_usec = 0; | |
| 961 #else | |
| 962 struct pollfd fds; | |
| 963 | |
| 964 fds.fd = fd; | |
| 965 fds.events = POLLIN; | |
| 966 #endif | |
| 967 | |
| 968 for (len = 0; len < maxlen; len++) | |
| 969 { | |
| 970 if (pos >= bytes) /* end of buffer reached? */ | |
| 971 { | |
| 972 #ifdef HAVE_SELECT | |
| 973 if (select(fd + 1, &rfds, NULL, NULL, &tval) > 0) | |
| 974 #else | |
|
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parents:
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|
975 if (poll(&fds, 1, 0) > 0) |
| 7 | 976 #endif |
|
2577
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parents:
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diff
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|
977 { |
|
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
978 pos = 0; |
|
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Bram Moolenaar <bram@vim.org>
parents:
2165
diff
changeset
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979 bytes = read(fd, inbuf, sizeof(inbuf)); |
|
073ff46fe397
Fold Vim 7.2 default branch back to trunk to avoid two heads. (Tony
Bram Moolenaar <bram@vim.org>
parents:
2165
diff
changeset
|
980 if (bytes <= 0) |
|
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Fold Vim 7.2 default branch back to trunk to avoid two heads. (Tony
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
981 return bytes; |
|
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Fold Vim 7.2 default branch back to trunk to avoid two heads. (Tony
Bram Moolenaar <bram@vim.org>
parents:
2165
diff
changeset
|
982 } |
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Fold Vim 7.2 default branch back to trunk to avoid two heads. (Tony
Bram Moolenaar <bram@vim.org>
parents:
2165
diff
changeset
|
983 else |
|
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Fold Vim 7.2 default branch back to trunk to avoid two heads. (Tony
Bram Moolenaar <bram@vim.org>
parents:
2165
diff
changeset
|
984 { |
|
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Fold Vim 7.2 default branch back to trunk to avoid two heads. (Tony
Bram Moolenaar <bram@vim.org>
parents:
2165
diff
changeset
|
985 pos = pos-len; |
|
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Bram Moolenaar <bram@vim.org>
parents:
2165
diff
changeset
|
986 buf[0] = '\0'; |
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Bram Moolenaar <bram@vim.org>
parents:
2165
diff
changeset
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987 return 0; |
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Fold Vim 7.2 default branch back to trunk to avoid two heads. (Tony
Bram Moolenaar <bram@vim.org>
parents:
2165
diff
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|
988 } |
| 7 | 989 } |
| 990 if ((buf[len] = inbuf[pos++]) =='\n') | |
| 991 break; | |
| 992 } | |
| 993 buf[len] = '\0'; | |
| 994 return len; | |
| 995 } | |
| 996 #endif /* WIN32 */ | |
| 997 | |
| 998 | |
| 999 static void | |
| 1000 SendRequest(command, symbol) | |
| 1001 struct sn_cmd *command; | |
| 1002 char *symbol; | |
| 1003 { | |
| 1004 int cmd_type = command->cmd_type; | |
| 1005 static char cmdstr[MAX_REQUEST_LEN]; | |
| 1006 static char msgtxt[MAX_REQUEST_LEN]; | |
| 1007 char *buffer_name = NULL; | |
| 1008 | |
| 1009 if (cmd_type == RQ_CONNECT) | |
| 1010 { | |
| 1011 sniff_connect(); | |
| 1012 return; | |
| 1013 } | |
| 1014 if (!sniff_connected && !(cmd_type & SILENT)) | |
| 1015 { | |
| 1016 vi_error_msg(_("E278: SNiFF+ not connected")); | |
| 1017 return; | |
| 1018 } | |
| 1019 | |
| 1020 if (cmd_type & NEED_FILE) | |
| 1021 { | |
| 1022 if (!curbuf->b_sniff) | |
| 1023 { | |
| 1024 if (!(cmd_type & SILENT)) | |
| 1025 vi_error_msg(_("E279: Not a SNiFF+ buffer")); | |
| 1026 return; | |
| 1027 } | |
| 1028 buffer_name = vi_buffer_name(); | |
| 1029 if (buffer_name == NULL) | |
| 1030 return; | |
| 1031 if (cmd_type & NEED_SYMBOL) | |
| 1032 { | |
| 1033 if (cmd_type & EMPTY_SYMBOL) | |
| 1034 symbol = " "; | |
| 1035 else if (!symbol && !(symbol = vi_symbol_under_cursor())) | |
| 1036 return; /* error msg already displayed */ | |
| 1037 } | |
| 1038 | |
| 1039 if (symbol) | |
| 272 | 1040 vim_snprintf(cmdstr, sizeof(cmdstr), "%c%s%s%ld%s%s\n", |
| 7 | 1041 command->cmd_code, |
| 1042 buffer_name, | |
| 1043 sniff_rq_sep, | |
| 1044 vi_cursor_pos(), | |
| 1045 sniff_rq_sep, | |
| 1046 symbol | |
| 1047 ); | |
| 1048 else | |
| 272 | 1049 vim_snprintf(cmdstr, sizeof(cmdstr), "%c%s\n", |
| 1050 command->cmd_code, buffer_name); | |
| 7 | 1051 } |
| 1052 else /* simple request */ | |
| 1053 { | |
| 1054 cmdstr[0] = command->cmd_code; | |
| 1055 cmdstr[1] = '\n'; | |
| 1056 cmdstr[2] = '\0'; | |
| 1057 } | |
| 1058 if (command->cmd_msg && !(cmd_type & SILENT)) | |
| 1059 { | |
| 1060 if ((cmd_type & NEED_SYMBOL) && !(cmd_type & EMPTY_SYMBOL)) | |
| 1061 { | |
| 272 | 1062 vim_snprintf(msgtxt, sizeof(msgtxt), "%s: %s", |
| 1063 _(command->cmd_msg), symbol); | |
| 7 | 1064 vi_msg(msgtxt); |
| 1065 } | |
| 1066 else | |
| 1067 vi_msg(_(command->cmd_msg)); | |
| 1068 } | |
| 1069 WriteToSniff(cmdstr); | |
| 1070 if (cmd_type & DISCONNECT) | |
| 1071 sniff_disconnect(0); | |
| 1072 } | |
| 1073 | |
| 1074 | |
| 1075 | |
| 1076 static void | |
| 1077 WriteToSniff(str) | |
| 1078 char *str; | |
| 1079 { | |
| 1080 int bytes; | |
| 1081 #ifdef WIN32 | |
| 1082 if (! WriteFile(handle_to_sniff, str, strlen(str), &bytes, NULL)) | |
| 1083 { | |
| 1084 DWORD err=GetLastError(); | |
| 1085 bytes = -1; | |
| 1086 } | |
| 1087 #else | |
| 1088 bytes = write(fd_to_sniff, str, strlen(str)); | |
| 1089 #endif | |
| 1090 if (bytes<0) | |
| 1091 { | |
| 1092 vi_msg(_("Sniff: Error during write. Disconnected")); | |
| 1093 sniff_disconnect(1); | |
| 1094 } | |
| 1095 } | |
| 1096 | |
| 1097 /*-------- vim helping functions --------------------------------*/ | |
| 1098 | |
| 1099 static void | |
| 1100 vi_msg(str) | |
| 1101 char *str; | |
| 1102 { | |
| 1103 if (str != NULL && *str != NUL) | |
| 1104 MSG((char_u *)str); | |
| 1105 } | |
| 1106 | |
| 1107 static void | |
| 1108 vi_error_msg(str) | |
| 1109 char *str; | |
| 1110 { | |
| 1111 if (str != NULL && *str != NUL) | |
| 1112 EMSG((char_u *)str); | |
| 1113 } | |
| 1114 | |
| 1115 static void | |
| 1116 vi_open_file(fname) | |
| 1117 char *fname; | |
| 1118 { | |
| 1119 ++no_wait_return; | |
| 1743 | 1120 do_ecmd(0, (char_u *)fname, NULL, NULL, ECMD_ONE, ECMD_HIDE+ECMD_OLDBUF, |
| 1121 curwin); | |
| 7 | 1122 curbuf->b_sniff = TRUE; |
| 1123 --no_wait_return; /* [ex_docmd.c] */ | |
| 1124 } | |
| 1125 | |
| 1126 static buf_T * | |
| 1127 vi_find_buffer(fname) | |
| 1128 char *fname; | |
| 1129 { /* derived from buflist_findname() [buffer.c] */ | |
| 1130 buf_T *buf; | |
| 1131 | |
| 1132 for (buf = firstbuf; buf != NULL; buf = buf->b_next) | |
| 1133 if (buf->b_sfname != NULL && fnamecmp(fname, buf->b_sfname) == 0) | |
| 1134 return (buf); | |
| 1135 return NULL; | |
| 1136 } | |
| 1137 | |
| 1138 | |
| 1139 static char * | |
| 1140 vi_symbol_under_cursor() | |
| 1141 { | |
| 1142 int len; | |
| 1143 char *symbolp; | |
| 1144 char *p; | |
| 1145 static char sniff_symbol[256]; | |
| 1146 | |
| 1147 len = find_ident_under_cursor((char_u **)&symbolp, FIND_IDENT); | |
| 1148 /* [normal.c] */ | |
| 1149 if (len <= 0) | |
| 1150 return NULL; | |
| 1151 for (p=sniff_symbol; len; len--) | |
| 1152 *p++ = *symbolp++; | |
| 1153 *p = '\0'; | |
| 1154 return sniff_symbol; | |
| 1155 } | |
| 1156 | |
| 1157 | |
| 1158 static char * | |
| 1159 vi_buffer_name() | |
| 1160 { | |
| 1161 return (char *)curbuf->b_sfname; | |
| 1162 } | |
| 1163 | |
| 1164 static void | |
| 1165 vi_exec_cmd(vicmd) | |
| 1166 char *vicmd; | |
| 1167 { | |
| 1168 do_cmdline_cmd((char_u *)vicmd); /* [ex_docmd.c] */ | |
| 1169 } | |
| 1170 | |
| 1171 /* | |
| 1172 * Set cursor on character position | |
| 1173 * derived from cursor_pos_info() [buffer.c] | |
| 1174 */ | |
| 1175 static void | |
| 1176 vi_set_cursor_pos(char_pos) | |
| 1177 long char_pos; | |
| 1178 { | |
| 1179 linenr_T lnum; | |
| 1180 long char_count = 1; /* first position = 1 */ | |
| 1181 int line_size; | |
| 1182 int eol_size; | |
| 1183 | |
| 1184 if (char_pos == 0) | |
| 1185 { | |
| 1186 char_pos = 1; | |
| 1187 } | |
| 1188 if (get_fileformat(curbuf) == EOL_DOS) | |
| 1189 eol_size = 2; | |
| 1190 else | |
| 1191 eol_size = 1; | |
| 1192 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum) | |
| 1193 { | |
| 1194 line_size = STRLEN(ml_get(lnum)) + eol_size; | |
| 1195 if (char_count+line_size > char_pos) break; | |
| 1196 char_count += line_size; | |
| 1197 } | |
| 1198 curwin->w_cursor.lnum = lnum; | |
| 1199 curwin->w_cursor.col = char_pos - char_count; | |
| 1200 } | |
| 1201 | |
| 1202 static long | |
| 1203 vi_cursor_pos() | |
| 1204 { | |
| 1205 linenr_T lnum; | |
| 1206 long char_count=1; /* sniff starts with pos 1 */ | |
| 1207 int line_size; | |
| 1208 int eol_size; | |
| 1209 | |
| 1210 if (curbuf->b_p_tx) | |
| 1211 eol_size = 2; | |
| 1212 else | |
| 1213 eol_size = 1; | |
| 1214 for (lnum = 1; lnum < curwin->w_cursor.lnum; ++lnum) | |
| 1215 { | |
| 1216 line_size = STRLEN(ml_get(lnum)) + eol_size; | |
| 1217 char_count += line_size; | |
| 1218 } | |
| 1219 return char_count + curwin->w_cursor.col; | |
| 1220 } |