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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "primpl.h" | |
| 7 | |
| 8 #include <string.h> | |
| 9 #include <fcntl.h> | |
| 10 | |
| 11 #ifdef XP_UNIX | |
| 12 #if defined(AIX) || defined(QNX) | |
| 13 /* To pick up sysconf */ | |
| 14 #include <unistd.h> | |
| 15 #else | |
| 16 /* To pick up getrlimit, setrlimit */ | |
| 17 #include <sys/time.h> | |
| 18 #include <sys/resource.h> | |
| 19 #endif | |
| 20 #endif /* XP_UNIX */ | |
| 21 | |
| 22 extern PRLock *_pr_flock_lock; | |
| 23 extern PRCondVar *_pr_flock_cv; | |
| 24 | |
| 25 static PRInt32 PR_CALLBACK FileRead(PRFileDesc *fd, void *buf, PRInt32 amount) | |
| 26 { | |
| 27 PRInt32 rv = 0; | |
| 28 PRThread *me = _PR_MD_CURRENT_THREAD(); | |
| 29 | |
| 30 if (_PR_PENDING_INTERRUPT(me)) { | |
| 31 me->flags &= ~_PR_INTERRUPT; | |
| 32 PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); | |
| 33 rv = -1; | |
| 34 } | |
| 35 if (_PR_IO_PENDING(me)) { | |
| 36 PR_SetError(PR_IO_PENDING_ERROR, 0); | |
| 37 rv = -1; | |
| 38 } | |
| 39 if (rv == -1) | |
| 40 return rv; | |
| 41 | |
| 42 rv = _PR_MD_READ(fd, buf, amount); | |
| 43 if (rv < 0) { | |
| 44 PR_ASSERT(rv == -1); | |
| 45 } | |
| 46 PR_LOG(_pr_io_lm, PR_LOG_MAX, ("read -> %d", rv)); | |
| 47 return rv; | |
| 48 } | |
| 49 | |
| 50 static PRInt32 PR_CALLBACK FileWrite(PRFileDesc *fd, const void *buf, PRInt32 am
ount) | |
| 51 { | |
| 52 PRInt32 rv = 0; | |
| 53 PRInt32 temp, count; | |
| 54 PRThread *me = _PR_MD_CURRENT_THREAD(); | |
| 55 | |
| 56 if (_PR_PENDING_INTERRUPT(me)) { | |
| 57 me->flags &= ~_PR_INTERRUPT; | |
| 58 PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); | |
| 59 rv = -1; | |
| 60 } | |
| 61 if (_PR_IO_PENDING(me)) { | |
| 62 PR_SetError(PR_IO_PENDING_ERROR, 0); | |
| 63 rv = -1; | |
| 64 } | |
| 65 if (rv != 0) | |
| 66 return rv; | |
| 67 | |
| 68 count = 0; | |
| 69 #if !defined(_PR_HAVE_O_APPEND) /* Bugzilla: 4090, 276330 */ | |
| 70 if (fd->secret->appendMode) { | |
| 71 if (PR_Seek64(fd, 0, PR_SEEK_END) == -1) { | |
| 72 return -1; | |
| 73 } | |
| 74 } /* if (fd->secret->appendMode...) */ | |
| 75 #endif /* _PR_HAVE_O_APPEND */ | |
| 76 while (amount > 0) { | |
| 77 temp = _PR_MD_WRITE(fd, buf, amount); | |
| 78 if (temp < 0) { | |
| 79 count = -1; | |
| 80 break; | |
| 81 } | |
| 82 count += temp; | |
| 83 if (fd->secret->nonblocking) { | |
| 84 break; | |
| 85 } | |
| 86 buf = (const void*) ((const char*)buf + temp); | |
| 87 amount -= temp; | |
| 88 } | |
| 89 PR_LOG(_pr_io_lm, PR_LOG_MAX, ("write -> %d", count)); | |
| 90 return count; | |
| 91 } | |
| 92 | |
| 93 static PROffset32 PR_CALLBACK FileSeek(PRFileDesc *fd, PROffset32 offset, PRSeek
Whence whence) | |
| 94 { | |
| 95 PROffset32 result; | |
| 96 | |
| 97 result = _PR_MD_LSEEK(fd, offset, whence); | |
| 98 return result; | |
| 99 } | |
| 100 | |
| 101 static PROffset64 PR_CALLBACK FileSeek64(PRFileDesc *fd, PROffset64 offset, PRSe
ekWhence whence) | |
| 102 { | |
| 103 PROffset64 result; | |
| 104 | |
| 105 result = _PR_MD_LSEEK64(fd, offset, whence); | |
| 106 return result; | |
| 107 } | |
| 108 | |
| 109 static PRInt32 PR_CALLBACK FileAvailable(PRFileDesc *fd) | |
| 110 { | |
| 111 PRInt32 result, cur, end; | |
| 112 | |
| 113 cur = _PR_MD_LSEEK(fd, 0, PR_SEEK_CUR); | |
| 114 | |
| 115 if (cur >= 0) | |
| 116 end = _PR_MD_LSEEK(fd, 0, PR_SEEK_END); | |
| 117 | |
| 118 if ((cur < 0) || (end < 0)) { | |
| 119 return -1; | |
| 120 } | |
| 121 | |
| 122 result = end - cur; | |
| 123 _PR_MD_LSEEK(fd, cur, PR_SEEK_SET); | |
| 124 | |
| 125 return result; | |
| 126 } | |
| 127 | |
| 128 static PRInt64 PR_CALLBACK FileAvailable64(PRFileDesc *fd) | |
| 129 { | |
| 130 PRInt64 result, cur, end; | |
| 131 PRInt64 minus_one; | |
| 132 | |
| 133 LL_I2L(minus_one, -1); | |
| 134 cur = _PR_MD_LSEEK64(fd, LL_ZERO, PR_SEEK_CUR); | |
| 135 | |
| 136 if (LL_GE_ZERO(cur)) | |
| 137 end = _PR_MD_LSEEK64(fd, LL_ZERO, PR_SEEK_END); | |
| 138 | |
| 139 if (!LL_GE_ZERO(cur) || !LL_GE_ZERO(end)) return minus_one; | |
| 140 | |
| 141 LL_SUB(result, end, cur); | |
| 142 (void)_PR_MD_LSEEK64(fd, cur, PR_SEEK_SET); | |
| 143 | |
| 144 return result; | |
| 145 } | |
| 146 | |
| 147 static PRInt32 PR_CALLBACK PipeAvailable(PRFileDesc *fd) | |
| 148 { | |
| 149 PRInt32 rv; | |
| 150 rv = _PR_MD_PIPEAVAILABLE(fd); | |
| 151 return rv; | |
| 152 } | |
| 153 | |
| 154 static PRInt64 PR_CALLBACK PipeAvailable64(PRFileDesc *fd) | |
| 155 { | |
| 156 PRInt64 rv; | |
| 157 LL_I2L(rv, _PR_MD_PIPEAVAILABLE(fd)); | |
| 158 return rv; | |
| 159 } | |
| 160 | |
| 161 static PRStatus PR_CALLBACK PipeSync(PRFileDesc *fd) | |
| 162 { | |
| 163 return PR_SUCCESS; | |
| 164 } | |
| 165 | |
| 166 static PRStatus PR_CALLBACK FileGetInfo(PRFileDesc *fd, PRFileInfo *info) | |
| 167 { | |
| 168 PRInt32 rv; | |
| 169 | |
| 170 rv = _PR_MD_GETOPENFILEINFO(fd, info); | |
| 171 if (rv < 0) { | |
| 172 return PR_FAILURE; | |
| 173 } else | |
| 174 return PR_SUCCESS; | |
| 175 } | |
| 176 | |
| 177 static PRStatus PR_CALLBACK FileGetInfo64(PRFileDesc *fd, PRFileInfo64 *info) | |
| 178 { | |
| 179 /* $$$$ NOT YET IMPLEMENTED */ | |
| 180 PRInt32 rv; | |
| 181 | |
| 182 rv = _PR_MD_GETOPENFILEINFO64(fd, info); | |
| 183 if (rv < 0) return PR_FAILURE; | |
| 184 else return PR_SUCCESS; | |
| 185 } | |
| 186 | |
| 187 static PRStatus PR_CALLBACK FileSync(PRFileDesc *fd) | |
| 188 { | |
| 189 PRInt32 result; | |
| 190 result = _PR_MD_FSYNC(fd); | |
| 191 if (result < 0) { | |
| 192 return PR_FAILURE; | |
| 193 } | |
| 194 return PR_SUCCESS; | |
| 195 } | |
| 196 | |
| 197 static PRStatus PR_CALLBACK FileClose(PRFileDesc *fd) | |
| 198 { | |
| 199 if (!fd || !fd->secret | |
| 200 || (fd->secret->state != _PR_FILEDESC_OPEN | |
| 201 && fd->secret->state != _PR_FILEDESC_CLOSED)) { | |
| 202 PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0); | |
| 203 return PR_FAILURE; | |
| 204 } | |
| 205 | |
| 206 if (fd->secret->state == _PR_FILEDESC_OPEN) { | |
| 207 if (_PR_MD_CLOSE_FILE(fd->secret->md.osfd) < 0) { | |
| 208 return PR_FAILURE; | |
| 209 } | |
| 210 fd->secret->state = _PR_FILEDESC_CLOSED; | |
| 211 } | |
| 212 PR_FreeFileDesc(fd); | |
| 213 return PR_SUCCESS; | |
| 214 } | |
| 215 | |
| 216 static PRInt16 PR_CALLBACK FilePoll( | |
| 217 PRFileDesc *fd, PRInt16 in_flags, PRInt16 *out_flags) | |
| 218 { | |
| 219 *out_flags = 0; | |
| 220 return in_flags; | |
| 221 } /* FilePoll */ | |
| 222 | |
| 223 static PRIOMethods _pr_fileMethods = { | |
| 224 PR_DESC_FILE, | |
| 225 FileClose, | |
| 226 FileRead, | |
| 227 FileWrite, | |
| 228 FileAvailable, | |
| 229 FileAvailable64, | |
| 230 FileSync, | |
| 231 FileSeek, | |
| 232 FileSeek64, | |
| 233 FileGetInfo, | |
| 234 FileGetInfo64, | |
| 235 (PRWritevFN)_PR_InvalidInt, | |
| 236 (PRConnectFN)_PR_InvalidStatus, | |
| 237 (PRAcceptFN)_PR_InvalidDesc, | |
| 238 (PRBindFN)_PR_InvalidStatus, | |
| 239 (PRListenFN)_PR_InvalidStatus, | |
| 240 (PRShutdownFN)_PR_InvalidStatus, | |
| 241 (PRRecvFN)_PR_InvalidInt, | |
| 242 (PRSendFN)_PR_InvalidInt, | |
| 243 (PRRecvfromFN)_PR_InvalidInt, | |
| 244 (PRSendtoFN)_PR_InvalidInt, | |
| 245 FilePoll, | |
| 246 (PRAcceptreadFN)_PR_InvalidInt, | |
| 247 (PRTransmitfileFN)_PR_InvalidInt, | |
| 248 (PRGetsocknameFN)_PR_InvalidStatus, | |
| 249 (PRGetpeernameFN)_PR_InvalidStatus, | |
| 250 (PRReservedFN)_PR_InvalidInt, | |
| 251 (PRReservedFN)_PR_InvalidInt, | |
| 252 (PRGetsocketoptionFN)_PR_InvalidStatus, | |
| 253 (PRSetsocketoptionFN)_PR_InvalidStatus, | |
| 254 (PRSendfileFN)_PR_InvalidInt, | |
| 255 (PRConnectcontinueFN)_PR_InvalidStatus, | |
| 256 (PRReservedFN)_PR_InvalidInt, | |
| 257 (PRReservedFN)_PR_InvalidInt, | |
| 258 (PRReservedFN)_PR_InvalidInt, | |
| 259 (PRReservedFN)_PR_InvalidInt | |
| 260 }; | |
| 261 | |
| 262 PR_IMPLEMENT(const PRIOMethods*) PR_GetFileMethods(void) | |
| 263 { | |
| 264 return &_pr_fileMethods; | |
| 265 } | |
| 266 | |
| 267 static PRIOMethods _pr_pipeMethods = { | |
| 268 PR_DESC_PIPE, | |
| 269 FileClose, | |
| 270 FileRead, | |
| 271 FileWrite, | |
| 272 PipeAvailable, | |
| 273 PipeAvailable64, | |
| 274 PipeSync, | |
| 275 (PRSeekFN)_PR_InvalidInt, | |
| 276 (PRSeek64FN)_PR_InvalidInt64, | |
| 277 (PRFileInfoFN)_PR_InvalidStatus, | |
| 278 (PRFileInfo64FN)_PR_InvalidStatus, | |
| 279 (PRWritevFN)_PR_InvalidInt, | |
| 280 (PRConnectFN)_PR_InvalidStatus, | |
| 281 (PRAcceptFN)_PR_InvalidDesc, | |
| 282 (PRBindFN)_PR_InvalidStatus, | |
| 283 (PRListenFN)_PR_InvalidStatus, | |
| 284 (PRShutdownFN)_PR_InvalidStatus, | |
| 285 (PRRecvFN)_PR_InvalidInt, | |
| 286 (PRSendFN)_PR_InvalidInt, | |
| 287 (PRRecvfromFN)_PR_InvalidInt, | |
| 288 (PRSendtoFN)_PR_InvalidInt, | |
| 289 FilePoll, | |
| 290 (PRAcceptreadFN)_PR_InvalidInt, | |
| 291 (PRTransmitfileFN)_PR_InvalidInt, | |
| 292 (PRGetsocknameFN)_PR_InvalidStatus, | |
| 293 (PRGetpeernameFN)_PR_InvalidStatus, | |
| 294 (PRReservedFN)_PR_InvalidInt, | |
| 295 (PRReservedFN)_PR_InvalidInt, | |
| 296 (PRGetsocketoptionFN)_PR_InvalidStatus, | |
| 297 (PRSetsocketoptionFN)_PR_InvalidStatus, | |
| 298 (PRSendfileFN)_PR_InvalidInt, | |
| 299 (PRConnectcontinueFN)_PR_InvalidStatus, | |
| 300 (PRReservedFN)_PR_InvalidInt, | |
| 301 (PRReservedFN)_PR_InvalidInt, | |
| 302 (PRReservedFN)_PR_InvalidInt, | |
| 303 (PRReservedFN)_PR_InvalidInt | |
| 304 }; | |
| 305 | |
| 306 PR_IMPLEMENT(const PRIOMethods*) PR_GetPipeMethods(void) | |
| 307 { | |
| 308 return &_pr_pipeMethods; | |
| 309 } | |
| 310 | |
| 311 PR_IMPLEMENT(PRFileDesc*) PR_Open(const char *name, PRIntn flags, PRIntn mode) | |
| 312 { | |
| 313 PROsfd osfd; | |
| 314 PRFileDesc *fd = 0; | |
| 315 #if !defined(_PR_HAVE_O_APPEND) | |
| 316 PRBool appendMode = ( PR_APPEND & flags )? PR_TRUE : PR_FALSE; | |
| 317 #endif | |
| 318 | |
| 319 if (!_pr_initialized) _PR_ImplicitInitialization(); | |
| 320 | |
| 321 /* Map pr open flags and mode to os specific flags */ | |
| 322 | |
| 323 osfd = _PR_MD_OPEN(name, flags, mode); | |
| 324 if (osfd != -1) { | |
| 325 fd = PR_AllocFileDesc(osfd, &_pr_fileMethods); | |
| 326 if (!fd) { | |
| 327 (void) _PR_MD_CLOSE_FILE(osfd); | |
| 328 } else { | |
| 329 #if !defined(_PR_HAVE_O_APPEND) | |
| 330 fd->secret->appendMode = appendMode; | |
| 331 #endif | |
| 332 _PR_MD_INIT_FD_INHERITABLE(fd, PR_FALSE); | |
| 333 } | |
| 334 } | |
| 335 return fd; | |
| 336 } | |
| 337 | |
| 338 PR_IMPLEMENT(PRFileDesc*) PR_OpenFile( | |
| 339 const char *name, PRIntn flags, PRIntn mode) | |
| 340 { | |
| 341 PROsfd osfd; | |
| 342 PRFileDesc *fd = 0; | |
| 343 #if !defined(_PR_HAVE_O_APPEND) | |
| 344 PRBool appendMode = ( PR_APPEND & flags )? PR_TRUE : PR_FALSE; | |
| 345 #endif | |
| 346 | |
| 347 if (!_pr_initialized) _PR_ImplicitInitialization(); | |
| 348 | |
| 349 /* Map pr open flags and mode to os specific flags */ | |
| 350 | |
| 351 osfd = _PR_MD_OPEN_FILE(name, flags, mode); | |
| 352 if (osfd != -1) { | |
| 353 fd = PR_AllocFileDesc(osfd, &_pr_fileMethods); | |
| 354 if (!fd) { | |
| 355 (void) _PR_MD_CLOSE_FILE(osfd); | |
| 356 } else { | |
| 357 #if !defined(_PR_HAVE_O_APPEND) | |
| 358 fd->secret->appendMode = appendMode; | |
| 359 #endif | |
| 360 _PR_MD_INIT_FD_INHERITABLE(fd, PR_FALSE); | |
| 361 } | |
| 362 } | |
| 363 return fd; | |
| 364 } | |
| 365 | |
| 366 PR_IMPLEMENT(PRInt32) PR_GetSysfdTableMax(void) | |
| 367 { | |
| 368 #if defined(XP_UNIX) && !defined(AIX) && !defined(QNX) | |
| 369 struct rlimit rlim; | |
| 370 | |
| 371 if ( getrlimit(RLIMIT_NOFILE, &rlim) < 0) { | |
| 372 /* XXX need to call PR_SetError() */ | |
| 373 return -1; | |
| 374 } | |
| 375 | |
| 376 return rlim.rlim_max; | |
| 377 #elif defined(AIX) || defined(QNX) | |
| 378 return sysconf(_SC_OPEN_MAX); | |
| 379 #elif defined(WIN32) | |
| 380 /* | |
| 381 * There is a systemwide limit of 65536 user handles. | |
| 382 */ | |
| 383 return 16384; | |
| 384 #elif defined (WIN16) | |
| 385 return FOPEN_MAX; | |
| 386 #elif defined(XP_OS2) | |
| 387 ULONG ulReqCount = 0; | |
| 388 ULONG ulCurMaxFH = 0; | |
| 389 DosSetRelMaxFH(&ulReqCount, &ulCurMaxFH); | |
| 390 return ulCurMaxFH; | |
| 391 #elif defined(XP_BEOS) | |
| 392 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); | |
| 393 return -1; | |
| 394 #else | |
| 395 write me; | |
| 396 #endif | |
| 397 } | |
| 398 | |
| 399 PR_IMPLEMENT(PRInt32) PR_SetSysfdTableSize(int table_size) | |
| 400 { | |
| 401 #if defined(XP_UNIX) && !defined(AIX) && !defined(QNX) | |
| 402 struct rlimit rlim; | |
| 403 PRInt32 tableMax = PR_GetSysfdTableMax(); | |
| 404 | |
| 405 if (tableMax < 0) | |
| 406 return -1; | |
| 407 | |
| 408 if (tableMax > FD_SETSIZE) | |
| 409 tableMax = FD_SETSIZE; | |
| 410 | |
| 411 rlim.rlim_max = tableMax; | |
| 412 | |
| 413 /* Grow as much as we can; even if too big */ | |
| 414 if ( rlim.rlim_max < table_size ) | |
| 415 rlim.rlim_cur = rlim.rlim_max; | |
| 416 else | |
| 417 rlim.rlim_cur = table_size; | |
| 418 | |
| 419 if ( setrlimit(RLIMIT_NOFILE, &rlim) < 0) { | |
| 420 /* XXX need to call PR_SetError() */ | |
| 421 return -1; | |
| 422 } | |
| 423 | |
| 424 return rlim.rlim_cur; | |
| 425 #elif defined(XP_OS2) | |
| 426 PRInt32 tableMax = PR_GetSysfdTableMax(); | |
| 427 if (table_size > tableMax) { | |
| 428 APIRET rc = NO_ERROR; | |
| 429 rc = DosSetMaxFH(table_size); | |
| 430 if (rc == NO_ERROR) | |
| 431 return table_size; | |
| 432 else | |
| 433 return -1; | |
| 434 } | |
| 435 return tableMax; | |
| 436 #elif defined(AIX) || defined(QNX) \ | |
| 437 || defined(WIN32) || defined(WIN16) || defined(XP_BEOS) | |
| 438 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); | |
| 439 return -1; | |
| 440 #else | |
| 441 write me; | |
| 442 #endif | |
| 443 } | |
| 444 | |
| 445 PR_IMPLEMENT(PRStatus) PR_Delete(const char *name) | |
| 446 { | |
| 447 PRInt32 rv; | |
| 448 | |
| 449 rv = _PR_MD_DELETE(name); | |
| 450 if (rv < 0) { | |
| 451 return PR_FAILURE; | |
| 452 } else | |
| 453 return PR_SUCCESS; | |
| 454 } | |
| 455 | |
| 456 PR_IMPLEMENT(PRStatus) PR_GetFileInfo(const char *fn, PRFileInfo *info) | |
| 457 { | |
| 458 PRInt32 rv; | |
| 459 | |
| 460 rv = _PR_MD_GETFILEINFO(fn, info); | |
| 461 if (rv < 0) { | |
| 462 return PR_FAILURE; | |
| 463 } else | |
| 464 return PR_SUCCESS; | |
| 465 } | |
| 466 | |
| 467 PR_IMPLEMENT(PRStatus) PR_GetFileInfo64(const char *fn, PRFileInfo64 *info) | |
| 468 { | |
| 469 PRInt32 rv; | |
| 470 | |
| 471 if (!_pr_initialized) _PR_ImplicitInitialization(); | |
| 472 rv = _PR_MD_GETFILEINFO64(fn, info); | |
| 473 if (rv < 0) { | |
| 474 return PR_FAILURE; | |
| 475 } else { | |
| 476 return PR_SUCCESS; | |
| 477 } | |
| 478 } | |
| 479 | |
| 480 PR_IMPLEMENT(PRStatus) PR_Rename(const char *from, const char *to) | |
| 481 { | |
| 482 PRInt32 rv; | |
| 483 | |
| 484 rv = _PR_MD_RENAME(from, to); | |
| 485 if (rv < 0) { | |
| 486 return PR_FAILURE; | |
| 487 } else | |
| 488 return PR_SUCCESS; | |
| 489 } | |
| 490 | |
| 491 PR_IMPLEMENT(PRStatus) PR_Access(const char *name, PRAccessHow how) | |
| 492 { | |
| 493 PRInt32 rv; | |
| 494 | |
| 495 rv = _PR_MD_ACCESS(name, how); | |
| 496 if (rv < 0) { | |
| 497 return PR_FAILURE; | |
| 498 } else | |
| 499 return PR_SUCCESS; | |
| 500 } | |
| 501 | |
| 502 /* | |
| 503 ** Import an existing OS file to NSPR | |
| 504 */ | |
| 505 PR_IMPLEMENT(PRFileDesc*) PR_ImportFile(PROsfd osfd) | |
| 506 { | |
| 507 PRFileDesc *fd = NULL; | |
| 508 | |
| 509 if (!_pr_initialized) _PR_ImplicitInitialization(); | |
| 510 | |
| 511 fd = PR_AllocFileDesc(osfd, &_pr_fileMethods); | |
| 512 if( !fd ) { | |
| 513 (void) _PR_MD_CLOSE_FILE(osfd); | |
| 514 } else { | |
| 515 _PR_MD_INIT_FD_INHERITABLE(fd, PR_TRUE); | |
| 516 } | |
| 517 | |
| 518 return fd; | |
| 519 } | |
| 520 | |
| 521 /* | |
| 522 ** Import an existing OS pipe to NSPR | |
| 523 */ | |
| 524 PR_IMPLEMENT(PRFileDesc*) PR_ImportPipe(PROsfd osfd) | |
| 525 { | |
| 526 PRFileDesc *fd = NULL; | |
| 527 | |
| 528 if (!_pr_initialized) _PR_ImplicitInitialization(); | |
| 529 | |
| 530 fd = PR_AllocFileDesc(osfd, &_pr_pipeMethods); | |
| 531 if( !fd ) { | |
| 532 (void) _PR_MD_CLOSE_FILE(osfd); | |
| 533 } else { | |
| 534 _PR_MD_INIT_FD_INHERITABLE(fd, PR_TRUE); | |
| 535 #ifdef WINNT | |
| 536 fd->secret->md.sync_file_io = PR_TRUE; | |
| 537 #endif | |
| 538 } | |
| 539 | |
| 540 return fd; | |
| 541 } | |
| 542 | |
| 543 #ifndef NO_NSPR_10_SUPPORT | |
| 544 /* | |
| 545 ** PR_Stat() for Win16 is defined in w16io.c | |
| 546 ** it is a hack to circumvent problems in Gromit and Java | |
| 547 ** See also: BugSplat: 98516. | |
| 548 */ | |
| 549 #if !defined(WIN16) | |
| 550 /* | |
| 551 * This function is supposed to be for backward compatibility with | |
| 552 * nspr 1.0. Therefore, it still uses the nspr 1.0 error-reporting | |
| 553 * mechanism -- returns a PRInt32, which is the error code when the call | |
| 554 * fails. | |
| 555 * | |
| 556 * If we need this function in nspr 2.0, it should be changed to | |
| 557 * return PRStatus, as follows: | |
| 558 * | |
| 559 * PR_IMPLEMENT(PRStatus) PR_Stat(const char *name, struct stat *buf) | |
| 560 * { | |
| 561 * PRInt32 rv; | |
| 562 * | |
| 563 * rv = _PR_MD_STAT(name, buf); | |
| 564 * if (rv < 0) | |
| 565 * return PR_FAILURE; | |
| 566 * else | |
| 567 * return PR_SUCCESS; | |
| 568 * } | |
| 569 * | |
| 570 * -- wtc, 2/14/97. | |
| 571 */ | |
| 572 PR_IMPLEMENT(PRInt32) PR_Stat(const char *name, struct stat *buf) | |
| 573 { | |
| 574 PRInt32 rv; | |
| 575 | |
| 576 rv = _PR_MD_STAT(name, buf); | |
| 577 return rv; | |
| 578 } | |
| 579 | |
| 580 #endif /* !defined(WIN16) */ | |
| 581 #endif /* ! NO_NSPR_10_SUPPORT */ | |
| 582 | |
| 583 PR_IMPLEMENT(PRStatus) PR_LockFile(PRFileDesc *fd) | |
| 584 { | |
| 585 PRStatus status = PR_SUCCESS; | |
| 586 | |
| 587 #ifdef WINNT | |
| 588 if (!fd->secret->md.io_model_committed) { | |
| 589 PRInt32 rv; | |
| 590 rv = _md_Associate((HANDLE)fd->secret->md.osfd); | |
| 591 PR_ASSERT(0 != rv); | |
| 592 fd->secret->md.io_model_committed = PR_TRUE; | |
| 593 } | |
| 594 #endif | |
| 595 | |
| 596 PR_Lock(_pr_flock_lock); | |
| 597 while (fd->secret->lockCount == -1) | |
| 598 PR_WaitCondVar(_pr_flock_cv, PR_INTERVAL_NO_TIMEOUT); | |
| 599 if (fd->secret->lockCount == 0) { | |
| 600 fd->secret->lockCount = -1; | |
| 601 PR_Unlock(_pr_flock_lock); | |
| 602 status = _PR_MD_LOCKFILE(fd->secret->md.osfd); | |
| 603 PR_Lock(_pr_flock_lock); | |
| 604 fd->secret->lockCount = (status == PR_SUCCESS) ? 1 : 0; | |
| 605 PR_NotifyAllCondVar(_pr_flock_cv); | |
| 606 } else { | |
| 607 fd->secret->lockCount++; | |
| 608 } | |
| 609 PR_Unlock(_pr_flock_lock); | |
| 610 | |
| 611 return status; | |
| 612 } | |
| 613 | |
| 614 PR_IMPLEMENT(PRStatus) PR_TLockFile(PRFileDesc *fd) | |
| 615 { | |
| 616 PRStatus status = PR_SUCCESS; | |
| 617 | |
| 618 #ifdef WINNT | |
| 619 if (!fd->secret->md.io_model_committed) { | |
| 620 PRInt32 rv; | |
| 621 rv = _md_Associate((HANDLE)fd->secret->md.osfd); | |
| 622 PR_ASSERT(0 != rv); | |
| 623 fd->secret->md.io_model_committed = PR_TRUE; | |
| 624 } | |
| 625 #endif | |
| 626 | |
| 627 PR_Lock(_pr_flock_lock); | |
| 628 if (fd->secret->lockCount == 0) { | |
| 629 status = _PR_MD_TLOCKFILE(fd->secret->md.osfd); | |
| 630 PR_ASSERT(status == PR_SUCCESS || fd->secret->lockCount == 0); | |
| 631 if (status == PR_SUCCESS) | |
| 632 fd->secret->lockCount = 1; | |
| 633 } else { | |
| 634 fd->secret->lockCount++; | |
| 635 } | |
| 636 PR_Unlock(_pr_flock_lock); | |
| 637 | |
| 638 return status; | |
| 639 } | |
| 640 | |
| 641 PR_IMPLEMENT(PRStatus) PR_UnlockFile(PRFileDesc *fd) | |
| 642 { | |
| 643 PRStatus rv = PR_SUCCESS; | |
| 644 | |
| 645 PR_Lock(_pr_flock_lock); | |
| 646 if (fd->secret->lockCount == 1) { | |
| 647 rv = _PR_MD_UNLOCKFILE(fd->secret->md.osfd); | |
| 648 if (rv == PR_SUCCESS) | |
| 649 fd->secret->lockCount = 0; | |
| 650 } else { | |
| 651 fd->secret->lockCount--; | |
| 652 } | |
| 653 PR_Unlock(_pr_flock_lock); | |
| 654 | |
| 655 return rv; | |
| 656 } | |
| 657 | |
| 658 PR_IMPLEMENT(PRStatus) PR_CreatePipe( | |
| 659 PRFileDesc **readPipe, | |
| 660 PRFileDesc **writePipe | |
| 661 ) | |
| 662 { | |
| 663 #if defined(WIN32) && !defined(WINCE) | |
| 664 HANDLE readEnd, writeEnd; | |
| 665 SECURITY_ATTRIBUTES pipeAttributes; | |
| 666 | |
| 667 if (!_pr_initialized) _PR_ImplicitInitialization(); | |
| 668 | |
| 669 ZeroMemory(&pipeAttributes, sizeof(pipeAttributes)); | |
| 670 pipeAttributes.nLength = sizeof(pipeAttributes); | |
| 671 pipeAttributes.bInheritHandle = TRUE; | |
| 672 if (CreatePipe(&readEnd, &writeEnd, &pipeAttributes, 0) == 0) { | |
| 673 PR_SetError(PR_UNKNOWN_ERROR, GetLastError()); | |
| 674 return PR_FAILURE; | |
| 675 } | |
| 676 *readPipe = PR_AllocFileDesc((PROsfd)readEnd, &_pr_pipeMethods); | |
| 677 if (NULL == *readPipe) { | |
| 678 CloseHandle(readEnd); | |
| 679 CloseHandle(writeEnd); | |
| 680 return PR_FAILURE; | |
| 681 } | |
| 682 *writePipe = PR_AllocFileDesc((PROsfd)writeEnd, &_pr_pipeMethods); | |
| 683 if (NULL == *writePipe) { | |
| 684 PR_Close(*readPipe); | |
| 685 CloseHandle(writeEnd); | |
| 686 return PR_FAILURE; | |
| 687 } | |
| 688 #ifdef WINNT | |
| 689 (*readPipe)->secret->md.sync_file_io = PR_TRUE; | |
| 690 (*writePipe)->secret->md.sync_file_io = PR_TRUE; | |
| 691 #endif | |
| 692 (*readPipe)->secret->inheritable = _PR_TRI_TRUE; | |
| 693 (*writePipe)->secret->inheritable = _PR_TRI_TRUE; | |
| 694 return PR_SUCCESS; | |
| 695 #elif defined(XP_UNIX) || defined(XP_OS2) || defined(XP_BEOS) | |
| 696 #ifdef XP_OS2 | |
| 697 HFILE pipefd[2]; | |
| 698 #else | |
| 699 int pipefd[2]; | |
| 700 #endif | |
| 701 | |
| 702 if (!_pr_initialized) _PR_ImplicitInitialization(); | |
| 703 | |
| 704 #ifdef XP_OS2 | |
| 705 if (DosCreatePipe(&pipefd[0], &pipefd[1], 4096) != 0) { | |
| 706 #else | |
| 707 if (pipe(pipefd) == -1) { | |
| 708 #endif | |
| 709 /* XXX map pipe error */ | |
| 710 PR_SetError(PR_UNKNOWN_ERROR, errno); | |
| 711 return PR_FAILURE; | |
| 712 } | |
| 713 *readPipe = PR_AllocFileDesc(pipefd[0], &_pr_pipeMethods); | |
| 714 if (NULL == *readPipe) { | |
| 715 close(pipefd[0]); | |
| 716 close(pipefd[1]); | |
| 717 return PR_FAILURE; | |
| 718 } | |
| 719 *writePipe = PR_AllocFileDesc(pipefd[1], &_pr_pipeMethods); | |
| 720 if (NULL == *writePipe) { | |
| 721 PR_Close(*readPipe); | |
| 722 close(pipefd[1]); | |
| 723 return PR_FAILURE; | |
| 724 } | |
| 725 #ifndef XP_BEOS /* Pipes are nonblocking on BeOS */ | |
| 726 _PR_MD_MAKE_NONBLOCK(*readPipe); | |
| 727 #endif | |
| 728 _PR_MD_INIT_FD_INHERITABLE(*readPipe, PR_FALSE); | |
| 729 #ifndef XP_BEOS /* Pipes are nonblocking on BeOS */ | |
| 730 _PR_MD_MAKE_NONBLOCK(*writePipe); | |
| 731 #endif | |
| 732 _PR_MD_INIT_FD_INHERITABLE(*writePipe, PR_FALSE); | |
| 733 return PR_SUCCESS; | |
| 734 #else | |
| 735 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); | |
| 736 return PR_FAILURE; | |
| 737 #endif | |
| 738 } | |
| 739 | |
| 740 #ifdef MOZ_UNICODE | |
| 741 /* ================ UTF16 Interfaces ================================ */ | |
| 742 PR_IMPLEMENT(PRFileDesc*) PR_OpenFileUTF16( | |
| 743 const PRUnichar *name, PRIntn flags, PRIntn mode) | |
| 744 { | |
| 745 PROsfd osfd; | |
| 746 PRFileDesc *fd = 0; | |
| 747 #if !defined(_PR_HAVE_O_APPEND) | |
| 748 PRBool appendMode = ( PR_APPEND & flags )? PR_TRUE : PR_FALSE; | |
| 749 #endif | |
| 750 | |
| 751 if (!_pr_initialized) _PR_ImplicitInitialization(); | |
| 752 | |
| 753 /* Map pr open flags and mode to os specific flags */ | |
| 754 osfd = _PR_MD_OPEN_FILE_UTF16(name, flags, mode); | |
| 755 if (osfd != -1) { | |
| 756 fd = PR_AllocFileDesc(osfd, &_pr_fileMethods); | |
| 757 if (!fd) { | |
| 758 (void) _PR_MD_CLOSE_FILE(osfd); | |
| 759 } else { | |
| 760 #if !defined(_PR_HAVE_O_APPEND) | |
| 761 fd->secret->appendMode = appendMode; | |
| 762 #endif | |
| 763 _PR_MD_INIT_FD_INHERITABLE(fd, PR_FALSE); | |
| 764 } | |
| 765 } | |
| 766 return fd; | |
| 767 } | |
| 768 | |
| 769 PR_IMPLEMENT(PRStatus) PR_GetFileInfo64UTF16(const PRUnichar *fn, PRFileInfo64 *
info) | |
| 770 { | |
| 771 PRInt32 rv; | |
| 772 | |
| 773 if (!_pr_initialized) _PR_ImplicitInitialization(); | |
| 774 rv = _PR_MD_GETFILEINFO64_UTF16(fn, info); | |
| 775 if (rv < 0) { | |
| 776 return PR_FAILURE; | |
| 777 } else { | |
| 778 return PR_SUCCESS; | |
| 779 } | |
| 780 } | |
| 781 | |
| 782 /* ================ UTF16 Interfaces ================================ */ | |
| 783 #endif /* MOZ_UNICODE */ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2078763002:
Delete bundled copy of NSS and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/nss@master