| File: | out/../deps/uv/src/unix/fs.c |
| Warning: | line 1033, column 5 Value stored to 'try_sendfile' is never read |
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| 1 | /* Copyright Joyent, Inc. and other Node contributors. All rights reserved. |
| 2 | * |
| 3 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 4 | * of this software and associated documentation files (the "Software"), to |
| 5 | * deal in the Software without restriction, including without limitation the |
| 6 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| 7 | * sell copies of the Software, and to permit persons to whom the Software is |
| 8 | * furnished to do so, subject to the following conditions: |
| 9 | * |
| 10 | * The above copyright notice and this permission notice shall be included in |
| 11 | * all copies or substantial portions of the Software. |
| 12 | * |
| 13 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 14 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 15 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 16 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 17 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 18 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| 19 | * IN THE SOFTWARE. |
| 20 | */ |
| 21 | |
| 22 | /* Caveat emptor: this file deviates from the libuv convention of returning |
| 23 | * negated errno codes. Most uv_fs_*() functions map directly to the system |
| 24 | * call of the same name. For more complex wrappers, it's easier to just |
| 25 | * return -1 with errno set. The dispatcher in uv__fs_work() takes care of |
| 26 | * getting the errno to the right place (req->result or as the return value.) |
| 27 | */ |
| 28 | |
| 29 | #include "uv.h" |
| 30 | #include "internal.h" |
| 31 | |
| 32 | #include <errno(*__errno_location ()).h> |
| 33 | #include <dlfcn.h> |
| 34 | #include <stdio.h> |
| 35 | #include <stdlib.h> |
| 36 | #include <string.h> |
| 37 | #include <limits.h> /* PATH_MAX */ |
| 38 | |
| 39 | #include <sys/types.h> |
| 40 | #include <sys/socket.h> |
| 41 | #include <sys/stat.h> |
| 42 | #include <sys/time.h> |
| 43 | #include <sys/uio.h> |
| 44 | #include <pthread.h> |
| 45 | #include <unistd.h> |
| 46 | #include <fcntl.h> |
| 47 | #include <poll.h> |
| 48 | |
| 49 | #if defined(__DragonFly__) || \ |
| 50 | defined(__FreeBSD__) || \ |
| 51 | defined(__FreeBSD_kernel__) || \ |
| 52 | defined(__OpenBSD__) || \ |
| 53 | defined(__NetBSD__) |
| 54 | # define HAVE_PREADV0 1 |
| 55 | #else |
| 56 | # define HAVE_PREADV0 0 |
| 57 | #endif |
| 58 | |
| 59 | #if defined(__linux__1) |
| 60 | # include "sys/utsname.h" |
| 61 | #endif |
| 62 | |
| 63 | #if defined(__linux__1) || defined(__sun) |
| 64 | # include <sys/sendfile.h> |
| 65 | # include <sys/sysmacros.h> |
| 66 | #endif |
| 67 | |
| 68 | #if defined(__APPLE__) |
| 69 | # include <sys/sysctl.h> |
| 70 | #elif defined(__linux__1) && !defined(FICLONE(((1U) << (((0 +8)+8)+14)) | (((0x94)) << (0 +8)) | (((9)) << 0) | ((((sizeof(int)))) << ((0 +8)+8 )))) |
| 71 | # include <sys/ioctl.h> |
| 72 | # define FICLONE(((1U) << (((0 +8)+8)+14)) | (((0x94)) << (0 +8)) | (((9)) << 0) | ((((sizeof(int)))) << ((0 +8)+8 ))) _IOW(0x94, 9, int)(((1U) << (((0 +8)+8)+14)) | (((0x94)) << (0 +8)) | (((9)) << 0) | ((((sizeof(int)))) << ((0 +8)+8 ))) |
| 73 | #endif |
| 74 | |
| 75 | #if defined(_AIX) && !defined(_AIX71) |
| 76 | # include <utime.h> |
| 77 | #endif |
| 78 | |
| 79 | #if defined(__APPLE__) || \ |
| 80 | defined(__DragonFly__) || \ |
| 81 | defined(__FreeBSD__) || \ |
| 82 | defined(__FreeBSD_kernel__) || \ |
| 83 | defined(__OpenBSD__) || \ |
| 84 | defined(__NetBSD__) |
| 85 | # include <sys/param.h> |
| 86 | # include <sys/mount.h> |
| 87 | #elif defined(__sun) || \ |
| 88 | defined(__MVS__) || \ |
| 89 | defined(__NetBSD__) || \ |
| 90 | defined(__HAIKU__) || \ |
| 91 | defined(__QNX__) |
| 92 | # include <sys/statvfs.h> |
| 93 | #else |
| 94 | # include <sys/statfs.h> |
| 95 | #endif |
| 96 | |
| 97 | #if defined(_AIX) && _XOPEN_SOURCE700 <= 600 |
| 98 | extern char *mkdtemp(char *template); /* See issue #740 on AIX < 7 */ |
| 99 | #endif |
| 100 | |
| 101 | #define INIT(subtype)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_subtype; req->result = 0; req->ptr = ((void*)0); req->loop = loop; req->path = ((void*)0); req->new_path = ((void*) 0); req->bufs = ((void*)0); req->cb = cb; } while (0) \ |
| 102 | do { \ |
| 103 | if (req == NULL((void*)0)) \ |
| 104 | return UV_EINVAL; \ |
| 105 | UV_REQ_INIT(req, UV_FS)do { (req)->type = (UV_FS); } while (0); \ |
| 106 | req->fs_type = UV_FS_ ## subtype; \ |
| 107 | req->result = 0; \ |
| 108 | req->ptr = NULL((void*)0); \ |
| 109 | req->loop = loop; \ |
| 110 | req->path = NULL((void*)0); \ |
| 111 | req->new_path = NULL((void*)0); \ |
| 112 | req->bufs = NULL((void*)0); \ |
| 113 | req->cb = cb; \ |
| 114 | } \ |
| 115 | while (0) |
| 116 | |
| 117 | #define PATHdo { ((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ({ if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 117, __extension__ __PRETTY_FUNCTION__ ); })); if (cb == ((void*)0)) { req->path = path; } else { req->path = uv__strdup(path); if (req->path == ((void* )0)) return UV_ENOMEM; } } while (0) \ |
| 118 | do { \ |
| 119 | assert(path != NULL)((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ( { if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 119, __extension__ __PRETTY_FUNCTION__ ); })); \ |
| 120 | if (cb == NULL((void*)0)) { \ |
| 121 | req->path = path; \ |
| 122 | } else { \ |
| 123 | req->path = uv__strdup(path); \ |
| 124 | if (req->path == NULL((void*)0)) \ |
| 125 | return UV_ENOMEM; \ |
| 126 | } \ |
| 127 | } \ |
| 128 | while (0) |
| 129 | |
| 130 | #define PATH2do { if (cb == ((void*)0)) { req->path = path; req->new_path = new_path; } else { size_t path_len; size_t new_path_len; path_len = strlen(path) + 1; new_path_len = strlen(new_path) + 1; req ->path = uv__malloc(path_len + new_path_len); if (req-> path == ((void*)0)) return UV_ENOMEM; req->new_path = req-> path + path_len; memcpy((void*) req->path, path, path_len) ; memcpy((void*) req->new_path, new_path, new_path_len); } } while (0) \ |
| 131 | do { \ |
| 132 | if (cb == NULL((void*)0)) { \ |
| 133 | req->path = path; \ |
| 134 | req->new_path = new_path; \ |
| 135 | } else { \ |
| 136 | size_t path_len; \ |
| 137 | size_t new_path_len; \ |
| 138 | path_len = strlen(path) + 1; \ |
| 139 | new_path_len = strlen(new_path) + 1; \ |
| 140 | req->path = uv__malloc(path_len + new_path_len); \ |
| 141 | if (req->path == NULL((void*)0)) \ |
| 142 | return UV_ENOMEM; \ |
| 143 | req->new_path = req->path + path_len; \ |
| 144 | memcpy((void*) req->path, path, path_len); \ |
| 145 | memcpy((void*) req->new_path, new_path, new_path_len); \ |
| 146 | } \ |
| 147 | } \ |
| 148 | while (0) |
| 149 | |
| 150 | #define POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0) \ |
| 151 | do { \ |
| 152 | if (cb != NULL((void*)0)) { \ |
| 153 | uv__req_register(loop, req)do { (loop)->active_reqs.count++; } while (0); \ |
| 154 | uv__work_submit(loop, \ |
| 155 | &req->work_req, \ |
| 156 | UV__WORK_FAST_IO, \ |
| 157 | uv__fs_work, \ |
| 158 | uv__fs_done); \ |
| 159 | return 0; \ |
| 160 | } \ |
| 161 | else { \ |
| 162 | uv__fs_work(&req->work_req); \ |
| 163 | return req->result; \ |
| 164 | } \ |
| 165 | } \ |
| 166 | while (0) |
| 167 | |
| 168 | |
| 169 | static int uv__fs_close(int fd) { |
| 170 | int rc; |
| 171 | |
| 172 | rc = uv__close_nocancel(fd); |
| 173 | if (rc == -1) |
| 174 | if (errno(*__errno_location ()) == EINTR4 || errno(*__errno_location ()) == EINPROGRESS115) |
| 175 | rc = 0; /* The close is in progress, not an error. */ |
| 176 | |
| 177 | return rc; |
| 178 | } |
| 179 | |
| 180 | |
| 181 | static ssize_t uv__fs_fsync(uv_fs_t* req) { |
| 182 | #if defined(__APPLE__) |
| 183 | /* Apple's fdatasync and fsync explicitly do NOT flush the drive write cache |
| 184 | * to the drive platters. This is in contrast to Linux's fdatasync and fsync |
| 185 | * which do, according to recent man pages. F_FULLFSYNC is Apple's equivalent |
| 186 | * for flushing buffered data to permanent storage. If F_FULLFSYNC is not |
| 187 | * supported by the file system we fall back to F_BARRIERFSYNC or fsync(). |
| 188 | * This is the same approach taken by sqlite, except sqlite does not issue |
| 189 | * an F_BARRIERFSYNC call. |
| 190 | */ |
| 191 | int r; |
| 192 | |
| 193 | r = fcntl(req->file, F_FULLFSYNC); |
| 194 | if (r != 0) |
| 195 | r = fcntl(req->file, 85 /* F_BARRIERFSYNC */); /* fsync + barrier */ |
| 196 | if (r != 0) |
| 197 | r = fsync(req->file); |
| 198 | return r; |
| 199 | #else |
| 200 | return fsync(req->file); |
| 201 | #endif |
| 202 | } |
| 203 | |
| 204 | |
| 205 | static ssize_t uv__fs_fdatasync(uv_fs_t* req) { |
| 206 | #if defined(__linux__1) || defined(__sun) || defined(__NetBSD__) |
| 207 | return fdatasync(req->file); |
| 208 | #elif defined(__APPLE__) |
| 209 | /* See the comment in uv__fs_fsync. */ |
| 210 | return uv__fs_fsync(req); |
| 211 | #else |
| 212 | return fsync(req->file); |
| 213 | #endif |
| 214 | } |
| 215 | |
| 216 | |
| 217 | UV_UNUSED(static struct timespec uv__fs_to_timespec(double time))__attribute__((unused)) static struct timespec uv__fs_to_timespec (double time) { |
| 218 | struct timespec ts; |
| 219 | ts.tv_sec = time; |
| 220 | ts.tv_nsec = (time - ts.tv_sec) * 1e9; |
| 221 | |
| 222 | /* TODO(bnoordhuis) Remove this. utimesat() has nanosecond resolution but we |
| 223 | * stick to microsecond resolution for the sake of consistency with other |
| 224 | * platforms. I'm the original author of this compatibility hack but I'm |
| 225 | * less convinced it's useful nowadays. |
| 226 | */ |
| 227 | ts.tv_nsec -= ts.tv_nsec % 1000; |
| 228 | |
| 229 | if (ts.tv_nsec < 0) { |
| 230 | ts.tv_nsec += 1e9; |
| 231 | ts.tv_sec -= 1; |
| 232 | } |
| 233 | return ts; |
| 234 | } |
| 235 | |
| 236 | UV_UNUSED(static struct timeval uv__fs_to_timeval(double time))__attribute__((unused)) static struct timeval uv__fs_to_timeval (double time) { |
| 237 | struct timeval tv; |
| 238 | tv.tv_sec = time; |
| 239 | tv.tv_usec = (time - tv.tv_sec) * 1e6; |
| 240 | if (tv.tv_usec < 0) { |
| 241 | tv.tv_usec += 1e6; |
| 242 | tv.tv_sec -= 1; |
| 243 | } |
| 244 | return tv; |
| 245 | } |
| 246 | |
| 247 | static ssize_t uv__fs_futime(uv_fs_t* req) { |
| 248 | #if defined(__linux__1) \ |
| 249 | || defined(_AIX71) \ |
| 250 | || defined(__HAIKU__) |
| 251 | struct timespec ts[2]; |
| 252 | ts[0] = uv__fs_to_timespec(req->atime); |
| 253 | ts[1] = uv__fs_to_timespec(req->mtime); |
| 254 | return futimens(req->file, ts); |
| 255 | #elif defined(__APPLE__) \ |
| 256 | || defined(__DragonFly__) \ |
| 257 | || defined(__FreeBSD__) \ |
| 258 | || defined(__FreeBSD_kernel__) \ |
| 259 | || defined(__NetBSD__) \ |
| 260 | || defined(__OpenBSD__) \ |
| 261 | || defined(__sun) |
| 262 | struct timeval tv[2]; |
| 263 | tv[0] = uv__fs_to_timeval(req->atime); |
| 264 | tv[1] = uv__fs_to_timeval(req->mtime); |
| 265 | # if defined(__sun) |
| 266 | return futimesat(req->file, NULL((void*)0), tv); |
| 267 | # else |
| 268 | return futimes(req->file, tv); |
| 269 | # endif |
| 270 | #elif defined(__MVS__) |
| 271 | attrib_t atr; |
| 272 | memset(&atr, 0, sizeof(atr)); |
| 273 | atr.att_mtimechg = 1; |
| 274 | atr.att_atimechg = 1; |
| 275 | atr.att_mtime = req->mtime; |
| 276 | atr.att_atime = req->atime; |
| 277 | return __fchattr(req->file, &atr, sizeof(atr)); |
| 278 | #else |
| 279 | errno(*__errno_location ()) = ENOSYS38; |
| 280 | return -1; |
| 281 | #endif |
| 282 | } |
| 283 | |
| 284 | |
| 285 | static ssize_t uv__fs_mkdtemp(uv_fs_t* req) { |
| 286 | return mkdtemp((char*) req->path) ? 0 : -1; |
| 287 | } |
| 288 | |
| 289 | |
| 290 | static int (*uv__mkostemp)(char*, int); |
| 291 | |
| 292 | |
| 293 | static void uv__mkostemp_initonce(void) { |
| 294 | /* z/os doesn't have RTLD_DEFAULT but that's okay |
| 295 | * because it doesn't have mkostemp(O_CLOEXEC) either. |
| 296 | */ |
| 297 | #ifdef RTLD_DEFAULT((void *) 0) |
| 298 | uv__mkostemp = (int (*)(char*, int)) dlsym(RTLD_DEFAULT((void *) 0), "mkostemp"); |
| 299 | |
| 300 | /* We don't care about errors, but we do want to clean them up. |
| 301 | * If there has been no error, then dlerror() will just return |
| 302 | * NULL. |
| 303 | */ |
| 304 | dlerror(); |
| 305 | #endif /* RTLD_DEFAULT */ |
| 306 | } |
| 307 | |
| 308 | |
| 309 | static int uv__fs_mkstemp(uv_fs_t* req) { |
| 310 | static uv_once_t once = UV_ONCE_INIT0; |
| 311 | int r; |
| 312 | #ifdef O_CLOEXEC02000000 |
| 313 | static int no_cloexec_support; |
| 314 | #endif |
| 315 | static const char pattern[] = "XXXXXX"; |
| 316 | static const size_t pattern_size = sizeof(pattern) - 1; |
| 317 | char* path; |
| 318 | size_t path_length; |
| 319 | |
| 320 | path = (char*) req->path; |
| 321 | path_length = strlen(path); |
| 322 | |
| 323 | /* EINVAL can be returned for 2 reasons: |
| 324 | 1. The template's last 6 characters were not XXXXXX |
| 325 | 2. open() didn't support O_CLOEXEC |
| 326 | We want to avoid going to the fallback path in case |
| 327 | of 1, so it's manually checked before. */ |
| 328 | if (path_length < pattern_size || |
| 329 | strcmp(path + path_length - pattern_size, pattern)) { |
| 330 | errno(*__errno_location ()) = EINVAL22; |
| 331 | r = -1; |
| 332 | goto clobber; |
| 333 | } |
| 334 | |
| 335 | uv_once(&once, uv__mkostemp_initonce); |
| 336 | |
| 337 | #ifdef O_CLOEXEC02000000 |
| 338 | if (uv__load_relaxed(&no_cloexec_support)(*&no_cloexec_support) == 0 && uv__mkostemp != NULL((void*)0)) { |
| 339 | r = uv__mkostemp(path, O_CLOEXEC02000000); |
| 340 | |
| 341 | if (r >= 0) |
| 342 | return r; |
| 343 | |
| 344 | /* If mkostemp() returns EINVAL, it means the kernel doesn't |
| 345 | support O_CLOEXEC, so we just fallback to mkstemp() below. */ |
| 346 | if (errno(*__errno_location ()) != EINVAL22) |
| 347 | goto clobber; |
| 348 | |
| 349 | /* We set the static variable so that next calls don't even |
| 350 | try to use mkostemp. */ |
| 351 | uv__store_relaxed(&no_cloexec_support, 1)do *&no_cloexec_support = 1; while (0); |
| 352 | } |
| 353 | #endif /* O_CLOEXEC */ |
| 354 | |
| 355 | if (req->cb != NULL((void*)0)) |
| 356 | uv_rwlock_rdlock(&req->loop->cloexec_lock); |
| 357 | |
| 358 | r = mkstemp(path); |
| 359 | |
| 360 | /* In case of failure `uv__cloexec` will leave error in `errno`, |
| 361 | * so it is enough to just set `r` to `-1`. |
| 362 | */ |
| 363 | if (r >= 0 && uv__cloexecuv__cloexec_ioctl(r, 1) != 0) { |
| 364 | r = uv__close(r); |
| 365 | if (r != 0) |
| 366 | abort(); |
| 367 | r = -1; |
| 368 | } |
| 369 | |
| 370 | if (req->cb != NULL((void*)0)) |
| 371 | uv_rwlock_rdunlock(&req->loop->cloexec_lock); |
| 372 | |
| 373 | clobber: |
| 374 | if (r < 0) |
| 375 | path[0] = '\0'; |
| 376 | return r; |
| 377 | } |
| 378 | |
| 379 | |
| 380 | static ssize_t uv__fs_open(uv_fs_t* req) { |
| 381 | #ifdef O_CLOEXEC02000000 |
| 382 | return open(req->path, req->flags | O_CLOEXEC02000000, req->mode); |
| 383 | #else /* O_CLOEXEC */ |
| 384 | int r; |
| 385 | |
| 386 | if (req->cb != NULL((void*)0)) |
| 387 | uv_rwlock_rdlock(&req->loop->cloexec_lock); |
| 388 | |
| 389 | r = open(req->path, req->flags, req->mode); |
| 390 | |
| 391 | /* In case of failure `uv__cloexec` will leave error in `errno`, |
| 392 | * so it is enough to just set `r` to `-1`. |
| 393 | */ |
| 394 | if (r >= 0 && uv__cloexecuv__cloexec_ioctl(r, 1) != 0) { |
| 395 | r = uv__close(r); |
| 396 | if (r != 0) |
| 397 | abort(); |
| 398 | r = -1; |
| 399 | } |
| 400 | |
| 401 | if (req->cb != NULL((void*)0)) |
| 402 | uv_rwlock_rdunlock(&req->loop->cloexec_lock); |
| 403 | |
| 404 | return r; |
| 405 | #endif /* O_CLOEXEC */ |
| 406 | } |
| 407 | |
| 408 | |
| 409 | #if !HAVE_PREADV0 |
| 410 | static ssize_t uv__fs_preadv(uv_file fd, |
| 411 | uv_buf_t* bufs, |
| 412 | unsigned int nbufs, |
| 413 | off_t off) { |
| 414 | uv_buf_t* buf; |
| 415 | uv_buf_t* end; |
| 416 | ssize_t result; |
| 417 | ssize_t rc; |
| 418 | size_t pos; |
| 419 | |
| 420 | assert(nbufs > 0)((void) sizeof ((nbufs > 0) ? 1 : 0), __extension__ ({ if ( nbufs > 0) ; else __assert_fail ("nbufs > 0", "../deps/uv/src/unix/fs.c" , 420, __extension__ __PRETTY_FUNCTION__); })); |
| 421 | |
| 422 | result = 0; |
| 423 | pos = 0; |
| 424 | buf = bufs + 0; |
| 425 | end = bufs + nbufs; |
| 426 | |
| 427 | for (;;) { |
| 428 | do |
| 429 | rc = pread(fd, buf->base + pos, buf->len - pos, off + result); |
| 430 | while (rc == -1 && errno(*__errno_location ()) == EINTR4); |
| 431 | |
| 432 | if (rc == 0) |
| 433 | break; |
| 434 | |
| 435 | if (rc == -1 && result == 0) |
| 436 | return UV__ERR(errno)(-((*__errno_location ()))); |
| 437 | |
| 438 | if (rc == -1) |
| 439 | break; /* We read some data so return that, ignore the error. */ |
| 440 | |
| 441 | pos += rc; |
| 442 | result += rc; |
| 443 | |
| 444 | if (pos < buf->len) |
| 445 | continue; |
| 446 | |
| 447 | pos = 0; |
| 448 | buf += 1; |
| 449 | |
| 450 | if (buf == end) |
| 451 | break; |
| 452 | } |
| 453 | |
| 454 | return result; |
| 455 | } |
| 456 | #endif |
| 457 | |
| 458 | |
| 459 | static ssize_t uv__fs_read(uv_fs_t* req) { |
| 460 | #if defined(__linux__1) |
| 461 | static int no_preadv; |
| 462 | #endif |
| 463 | unsigned int iovmax; |
| 464 | ssize_t result; |
| 465 | |
| 466 | iovmax = uv__getiovmax(); |
| 467 | if (req->nbufs > iovmax) |
| 468 | req->nbufs = iovmax; |
| 469 | |
| 470 | if (req->off < 0) { |
| 471 | if (req->nbufs == 1) |
| 472 | result = read(req->file, req->bufs[0].base, req->bufs[0].len); |
| 473 | else |
| 474 | result = readv(req->file, (struct iovec*) req->bufs, req->nbufs); |
| 475 | } else { |
| 476 | if (req->nbufs == 1) { |
| 477 | result = pread(req->file, req->bufs[0].base, req->bufs[0].len, req->off); |
| 478 | goto done; |
| 479 | } |
| 480 | |
| 481 | #if HAVE_PREADV0 |
| 482 | result = preadv(req->file, (struct iovec*) req->bufs, req->nbufs, req->off); |
| 483 | #else |
| 484 | # if defined(__linux__1) |
| 485 | if (uv__load_relaxed(&no_preadv)(*&no_preadv)) retry: |
| 486 | # endif |
| 487 | { |
| 488 | result = uv__fs_preadv(req->file, req->bufs, req->nbufs, req->off); |
| 489 | } |
| 490 | # if defined(__linux__1) |
| 491 | else { |
| 492 | result = uv__preadv(req->file, |
| 493 | (struct iovec*)req->bufs, |
| 494 | req->nbufs, |
| 495 | req->off); |
| 496 | if (result == -1 && errno(*__errno_location ()) == ENOSYS38) { |
| 497 | uv__store_relaxed(&no_preadv, 1)do *&no_preadv = 1; while (0); |
| 498 | goto retry; |
| 499 | } |
| 500 | } |
| 501 | # endif |
| 502 | #endif |
| 503 | } |
| 504 | |
| 505 | done: |
| 506 | /* Early cleanup of bufs allocation, since we're done with it. */ |
| 507 | if (req->bufs != req->bufsml) |
| 508 | uv__free(req->bufs); |
| 509 | |
| 510 | req->bufs = NULL((void*)0); |
| 511 | req->nbufs = 0; |
| 512 | |
| 513 | #ifdef __PASE__ |
| 514 | /* PASE returns EOPNOTSUPP when reading a directory, convert to EISDIR */ |
| 515 | if (result == -1 && errno(*__errno_location ()) == EOPNOTSUPP95) { |
| 516 | struct stat buf; |
| 517 | ssize_t rc; |
| 518 | rc = fstat(req->file, &buf); |
| 519 | if (rc == 0 && S_ISDIR(buf.st_mode)((((buf.st_mode)) & 0170000) == (0040000))) { |
| 520 | errno(*__errno_location ()) = EISDIR21; |
| 521 | } |
| 522 | } |
| 523 | #endif |
| 524 | |
| 525 | return result; |
| 526 | } |
| 527 | |
| 528 | |
| 529 | #if defined(__APPLE__) && !defined(MAC_OS_X_VERSION_10_8) |
| 530 | #define UV_CONST_DIRENTconst uv__dirent_t uv__dirent_t |
| 531 | #else |
| 532 | #define UV_CONST_DIRENTconst uv__dirent_t const uv__dirent_t |
| 533 | #endif |
| 534 | |
| 535 | |
| 536 | static int uv__fs_scandir_filter(UV_CONST_DIRENTconst uv__dirent_t* dent) { |
| 537 | return strcmp(dent->d_name, ".") != 0 && strcmp(dent->d_name, "..") != 0; |
| 538 | } |
| 539 | |
| 540 | |
| 541 | static int uv__fs_scandir_sort(UV_CONST_DIRENTconst uv__dirent_t** a, UV_CONST_DIRENTconst uv__dirent_t** b) { |
| 542 | return strcmp((*a)->d_name, (*b)->d_name); |
| 543 | } |
| 544 | |
| 545 | |
| 546 | static ssize_t uv__fs_scandir(uv_fs_t* req) { |
| 547 | uv__dirent_t** dents; |
| 548 | int n; |
| 549 | |
| 550 | dents = NULL((void*)0); |
| 551 | n = scandir(req->path, &dents, uv__fs_scandir_filter, uv__fs_scandir_sort); |
| 552 | |
| 553 | /* NOTE: We will use nbufs as an index field */ |
| 554 | req->nbufs = 0; |
| 555 | |
| 556 | if (n == 0) { |
| 557 | /* OS X still needs to deallocate some memory. |
| 558 | * Memory was allocated using the system allocator, so use free() here. |
| 559 | */ |
| 560 | free(dents); |
| 561 | dents = NULL((void*)0); |
| 562 | } else if (n == -1) { |
| 563 | return n; |
| 564 | } |
| 565 | |
| 566 | req->ptr = dents; |
| 567 | |
| 568 | return n; |
| 569 | } |
| 570 | |
| 571 | static int uv__fs_opendir(uv_fs_t* req) { |
| 572 | uv_dir_t* dir; |
| 573 | |
| 574 | dir = uv__malloc(sizeof(*dir)); |
| 575 | if (dir == NULL((void*)0)) |
| 576 | goto error; |
| 577 | |
| 578 | dir->dir = opendir(req->path); |
| 579 | if (dir->dir == NULL((void*)0)) |
| 580 | goto error; |
| 581 | |
| 582 | req->ptr = dir; |
| 583 | return 0; |
| 584 | |
| 585 | error: |
| 586 | uv__free(dir); |
| 587 | req->ptr = NULL((void*)0); |
| 588 | return -1; |
| 589 | } |
| 590 | |
| 591 | static int uv__fs_readdir(uv_fs_t* req) { |
| 592 | uv_dir_t* dir; |
| 593 | uv_dirent_t* dirent; |
| 594 | struct dirent* res; |
| 595 | unsigned int dirent_idx; |
| 596 | unsigned int i; |
| 597 | |
| 598 | dir = req->ptr; |
| 599 | dirent_idx = 0; |
| 600 | |
| 601 | while (dirent_idx < dir->nentries) { |
| 602 | /* readdir() returns NULL on end of directory, as well as on error. errno |
| 603 | is used to differentiate between the two conditions. */ |
| 604 | errno(*__errno_location ()) = 0; |
| 605 | res = readdir(dir->dir); |
| 606 | |
| 607 | if (res == NULL((void*)0)) { |
| 608 | if (errno(*__errno_location ()) != 0) |
| 609 | goto error; |
| 610 | break; |
| 611 | } |
| 612 | |
| 613 | if (strcmp(res->d_name, ".") == 0 || strcmp(res->d_name, "..") == 0) |
| 614 | continue; |
| 615 | |
| 616 | dirent = &dir->dirents[dirent_idx]; |
| 617 | dirent->name = uv__strdup(res->d_name); |
| 618 | |
| 619 | if (dirent->name == NULL((void*)0)) |
| 620 | goto error; |
| 621 | |
| 622 | dirent->type = uv__fs_get_dirent_type(res); |
| 623 | ++dirent_idx; |
| 624 | } |
| 625 | |
| 626 | return dirent_idx; |
| 627 | |
| 628 | error: |
| 629 | for (i = 0; i < dirent_idx; ++i) { |
| 630 | uv__free((char*) dir->dirents[i].name); |
| 631 | dir->dirents[i].name = NULL((void*)0); |
| 632 | } |
| 633 | |
| 634 | return -1; |
| 635 | } |
| 636 | |
| 637 | static int uv__fs_closedir(uv_fs_t* req) { |
| 638 | uv_dir_t* dir; |
| 639 | |
| 640 | dir = req->ptr; |
| 641 | |
| 642 | if (dir->dir != NULL((void*)0)) { |
| 643 | closedir(dir->dir); |
| 644 | dir->dir = NULL((void*)0); |
| 645 | } |
| 646 | |
| 647 | uv__free(req->ptr); |
| 648 | req->ptr = NULL((void*)0); |
| 649 | return 0; |
| 650 | } |
| 651 | |
| 652 | static int uv__fs_statfs(uv_fs_t* req) { |
| 653 | uv_statfs_t* stat_fs; |
| 654 | #if defined(__sun) || \ |
| 655 | defined(__MVS__) || \ |
| 656 | defined(__NetBSD__) || \ |
| 657 | defined(__HAIKU__) || \ |
| 658 | defined(__QNX__) |
| 659 | struct statvfs buf; |
| 660 | |
| 661 | if (0 != statvfs(req->path, &buf)) |
| 662 | #else |
| 663 | struct statfs buf; |
| 664 | |
| 665 | if (0 != statfs(req->path, &buf)) |
| 666 | #endif /* defined(__sun) */ |
| 667 | return -1; |
| 668 | |
| 669 | stat_fs = uv__malloc(sizeof(*stat_fs)); |
| 670 | if (stat_fs == NULL((void*)0)) { |
| 671 | errno(*__errno_location ()) = ENOMEM12; |
| 672 | return -1; |
| 673 | } |
| 674 | |
| 675 | #if defined(__sun) || \ |
| 676 | defined(__MVS__) || \ |
| 677 | defined(__OpenBSD__) || \ |
| 678 | defined(__NetBSD__) || \ |
| 679 | defined(__HAIKU__) || \ |
| 680 | defined(__QNX__) |
| 681 | stat_fs->f_type = 0; /* f_type is not supported. */ |
| 682 | #else |
| 683 | stat_fs->f_type = buf.f_type; |
| 684 | #endif |
| 685 | stat_fs->f_bsize = buf.f_bsize; |
| 686 | stat_fs->f_blocks = buf.f_blocks; |
| 687 | stat_fs->f_bfree = buf.f_bfree; |
| 688 | stat_fs->f_bavail = buf.f_bavail; |
| 689 | stat_fs->f_files = buf.f_files; |
| 690 | stat_fs->f_ffree = buf.f_ffree; |
| 691 | req->ptr = stat_fs; |
| 692 | return 0; |
| 693 | } |
| 694 | |
| 695 | static ssize_t uv__fs_pathmax_size(const char* path) { |
| 696 | ssize_t pathmax; |
| 697 | |
| 698 | pathmax = pathconf(path, _PC_PATH_MAX_PC_PATH_MAX); |
| 699 | |
| 700 | if (pathmax == -1) |
| 701 | pathmax = UV__PATH_MAX4096; |
| 702 | |
| 703 | return pathmax; |
| 704 | } |
| 705 | |
| 706 | static ssize_t uv__fs_readlink(uv_fs_t* req) { |
| 707 | ssize_t maxlen; |
| 708 | ssize_t len; |
| 709 | char* buf; |
| 710 | |
| 711 | #if defined(_POSIX_PATH_MAX256) || defined(PATH_MAX4096) |
| 712 | maxlen = uv__fs_pathmax_size(req->path); |
| 713 | #else |
| 714 | /* We may not have a real PATH_MAX. Read size of link. */ |
| 715 | struct stat st; |
| 716 | int ret; |
| 717 | ret = lstat(req->path, &st); |
| 718 | if (ret != 0) |
| 719 | return -1; |
| 720 | if (!S_ISLNK(st.st_mode)((((st.st_mode)) & 0170000) == (0120000))) { |
| 721 | errno(*__errno_location ()) = EINVAL22; |
| 722 | return -1; |
| 723 | } |
| 724 | |
| 725 | maxlen = st.st_size; |
| 726 | |
| 727 | /* According to readlink(2) lstat can report st_size == 0 |
| 728 | for some symlinks, such as those in /proc or /sys. */ |
| 729 | if (maxlen == 0) |
| 730 | maxlen = uv__fs_pathmax_size(req->path); |
| 731 | #endif |
| 732 | |
| 733 | buf = uv__malloc(maxlen); |
| 734 | |
| 735 | if (buf == NULL((void*)0)) { |
| 736 | errno(*__errno_location ()) = ENOMEM12; |
| 737 | return -1; |
| 738 | } |
| 739 | |
| 740 | #if defined(__MVS__) |
| 741 | len = os390_readlink(req->path, buf, maxlen); |
| 742 | #else |
| 743 | len = readlink(req->path, buf, maxlen); |
| 744 | #endif |
| 745 | |
| 746 | if (len == -1) { |
| 747 | uv__free(buf); |
| 748 | return -1; |
| 749 | } |
| 750 | |
| 751 | /* Uncommon case: resize to make room for the trailing nul byte. */ |
| 752 | if (len == maxlen) { |
| 753 | buf = uv__reallocf(buf, len + 1); |
| 754 | |
| 755 | if (buf == NULL((void*)0)) |
| 756 | return -1; |
| 757 | } |
| 758 | |
| 759 | buf[len] = '\0'; |
| 760 | req->ptr = buf; |
| 761 | |
| 762 | return 0; |
| 763 | } |
| 764 | |
| 765 | static ssize_t uv__fs_realpath(uv_fs_t* req) { |
| 766 | char* buf; |
| 767 | |
| 768 | #if defined(_POSIX_VERSION200809L) && _POSIX_VERSION200809L >= 200809L |
| 769 | buf = realpath(req->path, NULL((void*)0)); |
| 770 | if (buf == NULL((void*)0)) |
| 771 | return -1; |
| 772 | #else |
| 773 | ssize_t len; |
| 774 | |
| 775 | len = uv__fs_pathmax_size(req->path); |
| 776 | buf = uv__malloc(len + 1); |
| 777 | |
| 778 | if (buf == NULL((void*)0)) { |
| 779 | errno(*__errno_location ()) = ENOMEM12; |
| 780 | return -1; |
| 781 | } |
| 782 | |
| 783 | if (realpath(req->path, buf) == NULL((void*)0)) { |
| 784 | uv__free(buf); |
| 785 | return -1; |
| 786 | } |
| 787 | #endif |
| 788 | |
| 789 | req->ptr = buf; |
| 790 | |
| 791 | return 0; |
| 792 | } |
| 793 | |
| 794 | static ssize_t uv__fs_sendfile_emul(uv_fs_t* req) { |
| 795 | struct pollfd pfd; |
| 796 | int use_pread; |
| 797 | off_t offset; |
| 798 | ssize_t nsent; |
| 799 | ssize_t nread; |
| 800 | ssize_t nwritten; |
| 801 | size_t buflen; |
| 802 | size_t len; |
| 803 | ssize_t n; |
| 804 | int in_fd; |
| 805 | int out_fd; |
| 806 | char buf[8192]; |
| 807 | |
| 808 | len = req->bufsml[0].len; |
| 809 | in_fd = req->flags; |
| 810 | out_fd = req->file; |
| 811 | offset = req->off; |
| 812 | use_pread = 1; |
| 813 | |
| 814 | /* Here are the rules regarding errors: |
| 815 | * |
| 816 | * 1. Read errors are reported only if nsent==0, otherwise we return nsent. |
| 817 | * The user needs to know that some data has already been sent, to stop |
| 818 | * them from sending it twice. |
| 819 | * |
| 820 | * 2. Write errors are always reported. Write errors are bad because they |
| 821 | * mean data loss: we've read data but now we can't write it out. |
| 822 | * |
| 823 | * We try to use pread() and fall back to regular read() if the source fd |
| 824 | * doesn't support positional reads, for example when it's a pipe fd. |
| 825 | * |
| 826 | * If we get EAGAIN when writing to the target fd, we poll() on it until |
| 827 | * it becomes writable again. |
| 828 | * |
| 829 | * FIXME: If we get a write error when use_pread==1, it should be safe to |
| 830 | * return the number of sent bytes instead of an error because pread() |
| 831 | * is, in theory, idempotent. However, special files in /dev or /proc |
| 832 | * may support pread() but not necessarily return the same data on |
| 833 | * successive reads. |
| 834 | * |
| 835 | * FIXME: There is no way now to signal that we managed to send *some* data |
| 836 | * before a write error. |
| 837 | */ |
| 838 | for (nsent = 0; (size_t) nsent < len; ) { |
| 839 | buflen = len - nsent; |
| 840 | |
| 841 | if (buflen > sizeof(buf)) |
| 842 | buflen = sizeof(buf); |
| 843 | |
| 844 | do |
| 845 | if (use_pread) |
| 846 | nread = pread(in_fd, buf, buflen, offset); |
| 847 | else |
| 848 | nread = read(in_fd, buf, buflen); |
| 849 | while (nread == -1 && errno(*__errno_location ()) == EINTR4); |
| 850 | |
| 851 | if (nread == 0) |
| 852 | goto out; |
| 853 | |
| 854 | if (nread == -1) { |
| 855 | if (use_pread && nsent == 0 && (errno(*__errno_location ()) == EIO5 || errno(*__errno_location ()) == ESPIPE29)) { |
| 856 | use_pread = 0; |
| 857 | continue; |
| 858 | } |
| 859 | |
| 860 | if (nsent == 0) |
| 861 | nsent = -1; |
| 862 | |
| 863 | goto out; |
| 864 | } |
| 865 | |
| 866 | for (nwritten = 0; nwritten < nread; ) { |
| 867 | do |
| 868 | n = write(out_fd, buf + nwritten, nread - nwritten); |
| 869 | while (n == -1 && errno(*__errno_location ()) == EINTR4); |
| 870 | |
| 871 | if (n != -1) { |
| 872 | nwritten += n; |
| 873 | continue; |
| 874 | } |
| 875 | |
| 876 | if (errno(*__errno_location ()) != EAGAIN11 && errno(*__errno_location ()) != EWOULDBLOCK11) { |
| 877 | nsent = -1; |
| 878 | goto out; |
| 879 | } |
| 880 | |
| 881 | pfd.fd = out_fd; |
| 882 | pfd.events = POLLOUT0x004; |
| 883 | pfd.revents = 0; |
| 884 | |
| 885 | do |
| 886 | n = poll(&pfd, 1, -1); |
| 887 | while (n == -1 && errno(*__errno_location ()) == EINTR4); |
| 888 | |
| 889 | if (n == -1 || (pfd.revents & ~POLLOUT0x004) != 0) { |
| 890 | errno(*__errno_location ()) = EIO5; |
| 891 | nsent = -1; |
| 892 | goto out; |
| 893 | } |
| 894 | } |
| 895 | |
| 896 | offset += nread; |
| 897 | nsent += nread; |
| 898 | } |
| 899 | |
| 900 | out: |
| 901 | if (nsent != -1) |
| 902 | req->off = offset; |
| 903 | |
| 904 | return nsent; |
| 905 | } |
| 906 | |
| 907 | |
| 908 | #ifdef __linux__1 |
| 909 | static unsigned uv__kernel_version(void) { |
| 910 | static unsigned cached_version; |
| 911 | struct utsname u; |
| 912 | unsigned version; |
| 913 | unsigned major; |
| 914 | unsigned minor; |
| 915 | unsigned patch; |
| 916 | |
| 917 | version = uv__load_relaxed(&cached_version)(*&cached_version); |
| 918 | if (version != 0) |
| 919 | return version; |
| 920 | |
| 921 | if (-1 == uname(&u)) |
| 922 | return 0; |
| 923 | |
| 924 | if (3 != sscanf(u.release, "%u.%u.%u", &major, &minor, &patch)) |
| 925 | return 0; |
| 926 | |
| 927 | version = major * 65536 + minor * 256 + patch; |
| 928 | uv__store_relaxed(&cached_version, version)do *&cached_version = version; while (0); |
| 929 | |
| 930 | return version; |
| 931 | } |
| 932 | |
| 933 | |
| 934 | /* Pre-4.20 kernels have a bug where CephFS uses the RADOS copy-from command |
| 935 | * in copy_file_range() when it shouldn't. There is no workaround except to |
| 936 | * fall back to a regular copy. |
| 937 | */ |
| 938 | static int uv__is_buggy_cephfs(int fd) { |
| 939 | struct statfs s; |
| 940 | |
| 941 | if (-1 == fstatfs(fd, &s)) |
| 942 | return 0; |
| 943 | |
| 944 | if (s.f_type != /* CephFS */ 0xC36400) |
| 945 | return 0; |
| 946 | |
| 947 | return uv__kernel_version() < /* 4.20.0 */ 0x041400; |
| 948 | } |
| 949 | |
| 950 | |
| 951 | static int uv__is_cifs_or_smb(int fd) { |
| 952 | struct statfs s; |
| 953 | |
| 954 | if (-1 == fstatfs(fd, &s)) |
| 955 | return 0; |
| 956 | |
| 957 | switch ((unsigned) s.f_type) { |
| 958 | case 0x0000517Bu: /* SMB */ |
| 959 | case 0xFE534D42u: /* SMB2 */ |
| 960 | case 0xFF534D42u: /* CIFS */ |
| 961 | return 1; |
| 962 | } |
| 963 | |
| 964 | return 0; |
| 965 | } |
| 966 | |
| 967 | |
| 968 | static ssize_t uv__fs_try_copy_file_range(int in_fd, off_t* off, |
| 969 | int out_fd, size_t len) { |
| 970 | static int no_copy_file_range_support; |
| 971 | ssize_t r; |
| 972 | |
| 973 | if (uv__load_relaxed(&no_copy_file_range_support)(*&no_copy_file_range_support)) { |
| 974 | errno(*__errno_location ()) = ENOSYS38; |
| 975 | return -1; |
| 976 | } |
| 977 | |
| 978 | r = uv__fs_copy_file_range(in_fd, off, out_fd, NULL((void*)0), len, 0); |
| 979 | |
| 980 | if (r != -1) |
| 981 | return r; |
| 982 | |
| 983 | switch (errno(*__errno_location ())) { |
| 984 | case EACCES13: |
| 985 | /* Pre-4.20 kernels have a bug where CephFS uses the RADOS |
| 986 | * copy-from command when it shouldn't. |
| 987 | */ |
| 988 | if (uv__is_buggy_cephfs(in_fd)) |
| 989 | errno(*__errno_location ()) = ENOSYS38; /* Use fallback. */ |
| 990 | break; |
| 991 | case ENOSYS38: |
| 992 | uv__store_relaxed(&no_copy_file_range_support, 1)do *&no_copy_file_range_support = 1; while (0); |
| 993 | break; |
| 994 | case EPERM1: |
| 995 | /* It's been reported that CIFS spuriously fails. |
| 996 | * Consider it a transient error. |
| 997 | */ |
| 998 | if (uv__is_cifs_or_smb(out_fd)) |
| 999 | errno(*__errno_location ()) = ENOSYS38; /* Use fallback. */ |
| 1000 | break; |
| 1001 | case ENOTSUP95: |
| 1002 | case EXDEV18: |
| 1003 | /* ENOTSUP - it could work on another file system type. |
| 1004 | * EXDEV - it will not work when in_fd and out_fd are not on the same |
| 1005 | * mounted filesystem (pre Linux 5.3) |
| 1006 | */ |
| 1007 | errno(*__errno_location ()) = ENOSYS38; /* Use fallback. */ |
| 1008 | break; |
| 1009 | } |
| 1010 | |
| 1011 | return -1; |
| 1012 | } |
| 1013 | |
| 1014 | #endif /* __linux__ */ |
| 1015 | |
| 1016 | |
| 1017 | static ssize_t uv__fs_sendfile(uv_fs_t* req) { |
| 1018 | int in_fd; |
| 1019 | int out_fd; |
| 1020 | |
| 1021 | in_fd = req->flags; |
| 1022 | out_fd = req->file; |
| 1023 | |
| 1024 | #if defined(__linux__1) || defined(__sun) |
| 1025 | { |
| 1026 | off_t off; |
| 1027 | ssize_t r; |
| 1028 | size_t len; |
| 1029 | int try_sendfile; |
| 1030 | |
| 1031 | off = req->off; |
| 1032 | len = req->bufsml[0].len; |
| 1033 | try_sendfile = 1; |
Value stored to 'try_sendfile' is never read | |
| 1034 | |
| 1035 | #ifdef __linux__1 |
| 1036 | r = uv__fs_try_copy_file_range(in_fd, &off, out_fd, len); |
| 1037 | try_sendfile = (r == -1 && errno(*__errno_location ()) == ENOSYS38); |
| 1038 | #endif |
| 1039 | |
| 1040 | if (try_sendfile) |
| 1041 | r = sendfile(out_fd, in_fd, &off, len); |
| 1042 | |
| 1043 | /* sendfile() on SunOS returns EINVAL if the target fd is not a socket but |
| 1044 | * it still writes out data. Fortunately, we can detect it by checking if |
| 1045 | * the offset has been updated. |
| 1046 | */ |
| 1047 | if (r != -1 || off > req->off) { |
| 1048 | r = off - req->off; |
| 1049 | req->off = off; |
| 1050 | return r; |
| 1051 | } |
| 1052 | |
| 1053 | if (errno(*__errno_location ()) == EINVAL22 || |
| 1054 | errno(*__errno_location ()) == EIO5 || |
| 1055 | errno(*__errno_location ()) == ENOTSOCK88 || |
| 1056 | errno(*__errno_location ()) == EXDEV18) { |
| 1057 | errno(*__errno_location ()) = 0; |
| 1058 | return uv__fs_sendfile_emul(req); |
| 1059 | } |
| 1060 | |
| 1061 | return -1; |
| 1062 | } |
| 1063 | #elif defined(__APPLE__) || \ |
| 1064 | defined(__DragonFly__) || \ |
| 1065 | defined(__FreeBSD__) || \ |
| 1066 | defined(__FreeBSD_kernel__) |
| 1067 | { |
| 1068 | off_t len; |
| 1069 | ssize_t r; |
| 1070 | |
| 1071 | /* sendfile() on FreeBSD and Darwin returns EAGAIN if the target fd is in |
| 1072 | * non-blocking mode and not all data could be written. If a non-zero |
| 1073 | * number of bytes have been sent, we don't consider it an error. |
| 1074 | */ |
| 1075 | |
| 1076 | #if defined(__FreeBSD__) || defined(__DragonFly__) |
| 1077 | len = 0; |
| 1078 | r = sendfile(in_fd, out_fd, req->off, req->bufsml[0].len, NULL((void*)0), &len, 0); |
| 1079 | #elif defined(__FreeBSD_kernel__) |
| 1080 | len = 0; |
| 1081 | r = bsd_sendfile(in_fd, |
| 1082 | out_fd, |
| 1083 | req->off, |
| 1084 | req->bufsml[0].len, |
| 1085 | NULL((void*)0), |
| 1086 | &len, |
| 1087 | 0); |
| 1088 | #else |
| 1089 | /* The darwin sendfile takes len as an input for the length to send, |
| 1090 | * so make sure to initialize it with the caller's value. */ |
| 1091 | len = req->bufsml[0].len; |
| 1092 | r = sendfile(in_fd, out_fd, req->off, &len, NULL((void*)0), 0); |
| 1093 | #endif |
| 1094 | |
| 1095 | /* |
| 1096 | * The man page for sendfile(2) on DragonFly states that `len` contains |
| 1097 | * a meaningful value ONLY in case of EAGAIN and EINTR. |
| 1098 | * Nothing is said about it's value in case of other errors, so better |
| 1099 | * not depend on the potential wrong assumption that is was not modified |
| 1100 | * by the syscall. |
| 1101 | */ |
| 1102 | if (r == 0 || ((errno(*__errno_location ()) == EAGAIN11 || errno(*__errno_location ()) == EINTR4) && len != 0)) { |
| 1103 | req->off += len; |
| 1104 | return (ssize_t) len; |
| 1105 | } |
| 1106 | |
| 1107 | if (errno(*__errno_location ()) == EINVAL22 || |
| 1108 | errno(*__errno_location ()) == EIO5 || |
| 1109 | errno(*__errno_location ()) == ENOTSOCK88 || |
| 1110 | errno(*__errno_location ()) == EXDEV18) { |
| 1111 | errno(*__errno_location ()) = 0; |
| 1112 | return uv__fs_sendfile_emul(req); |
| 1113 | } |
| 1114 | |
| 1115 | return -1; |
| 1116 | } |
| 1117 | #else |
| 1118 | /* Squelch compiler warnings. */ |
| 1119 | (void) &in_fd; |
| 1120 | (void) &out_fd; |
| 1121 | |
| 1122 | return uv__fs_sendfile_emul(req); |
| 1123 | #endif |
| 1124 | } |
| 1125 | |
| 1126 | |
| 1127 | static ssize_t uv__fs_utime(uv_fs_t* req) { |
| 1128 | #if defined(__linux__1) \ |
| 1129 | || defined(_AIX71) \ |
| 1130 | || defined(__sun) \ |
| 1131 | || defined(__HAIKU__) |
| 1132 | struct timespec ts[2]; |
| 1133 | ts[0] = uv__fs_to_timespec(req->atime); |
| 1134 | ts[1] = uv__fs_to_timespec(req->mtime); |
| 1135 | return utimensat(AT_FDCWD-100, req->path, ts, 0); |
| 1136 | #elif defined(__APPLE__) \ |
| 1137 | || defined(__DragonFly__) \ |
| 1138 | || defined(__FreeBSD__) \ |
| 1139 | || defined(__FreeBSD_kernel__) \ |
| 1140 | || defined(__NetBSD__) \ |
| 1141 | || defined(__OpenBSD__) |
| 1142 | struct timeval tv[2]; |
| 1143 | tv[0] = uv__fs_to_timeval(req->atime); |
| 1144 | tv[1] = uv__fs_to_timeval(req->mtime); |
| 1145 | return utimes(req->path, tv); |
| 1146 | #elif defined(_AIX) \ |
| 1147 | && !defined(_AIX71) |
| 1148 | struct utimbuf buf; |
| 1149 | buf.actime = req->atime; |
| 1150 | buf.modtime = req->mtime; |
| 1151 | return utime(req->path, &buf); |
| 1152 | #elif defined(__MVS__) |
| 1153 | attrib_t atr; |
| 1154 | memset(&atr, 0, sizeof(atr)); |
| 1155 | atr.att_mtimechg = 1; |
| 1156 | atr.att_atimechg = 1; |
| 1157 | atr.att_mtime = req->mtime; |
| 1158 | atr.att_atime = req->atime; |
| 1159 | return __lchattr((char*) req->path, &atr, sizeof(atr)); |
| 1160 | #else |
| 1161 | errno(*__errno_location ()) = ENOSYS38; |
| 1162 | return -1; |
| 1163 | #endif |
| 1164 | } |
| 1165 | |
| 1166 | |
| 1167 | static ssize_t uv__fs_lutime(uv_fs_t* req) { |
| 1168 | #if defined(__linux__1) || \ |
| 1169 | defined(_AIX71) || \ |
| 1170 | defined(__sun) || \ |
| 1171 | defined(__HAIKU__) |
| 1172 | struct timespec ts[2]; |
| 1173 | ts[0] = uv__fs_to_timespec(req->atime); |
| 1174 | ts[1] = uv__fs_to_timespec(req->mtime); |
| 1175 | return utimensat(AT_FDCWD-100, req->path, ts, AT_SYMLINK_NOFOLLOW0x100); |
| 1176 | #elif defined(__APPLE__) || \ |
| 1177 | defined(__DragonFly__) || \ |
| 1178 | defined(__FreeBSD__) || \ |
| 1179 | defined(__FreeBSD_kernel__) || \ |
| 1180 | defined(__NetBSD__) |
| 1181 | struct timeval tv[2]; |
| 1182 | tv[0] = uv__fs_to_timeval(req->atime); |
| 1183 | tv[1] = uv__fs_to_timeval(req->mtime); |
| 1184 | return lutimes(req->path, tv); |
| 1185 | #else |
| 1186 | errno(*__errno_location ()) = ENOSYS38; |
| 1187 | return -1; |
| 1188 | #endif |
| 1189 | } |
| 1190 | |
| 1191 | |
| 1192 | static ssize_t uv__fs_write(uv_fs_t* req) { |
| 1193 | #if defined(__linux__1) |
| 1194 | static int no_pwritev; |
| 1195 | #endif |
| 1196 | ssize_t r; |
| 1197 | |
| 1198 | /* Serialize writes on OS X, concurrent write() and pwrite() calls result in |
| 1199 | * data loss. We can't use a per-file descriptor lock, the descriptor may be |
| 1200 | * a dup(). |
| 1201 | */ |
| 1202 | #if defined(__APPLE__) |
| 1203 | static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER{ { 0, 0, 0, 0, 0, 0, 0, { 0, 0 } } }; |
| 1204 | |
| 1205 | if (pthread_mutex_lock(&lock)) |
| 1206 | abort(); |
| 1207 | #endif |
| 1208 | |
| 1209 | if (req->off < 0) { |
| 1210 | if (req->nbufs == 1) |
| 1211 | r = write(req->file, req->bufs[0].base, req->bufs[0].len); |
| 1212 | else |
| 1213 | r = writev(req->file, (struct iovec*) req->bufs, req->nbufs); |
| 1214 | } else { |
| 1215 | if (req->nbufs == 1) { |
| 1216 | r = pwrite(req->file, req->bufs[0].base, req->bufs[0].len, req->off); |
| 1217 | goto done; |
| 1218 | } |
| 1219 | #if HAVE_PREADV0 |
| 1220 | r = pwritev(req->file, (struct iovec*) req->bufs, req->nbufs, req->off); |
| 1221 | #else |
| 1222 | # if defined(__linux__1) |
| 1223 | if (no_pwritev) retry: |
| 1224 | # endif |
| 1225 | { |
| 1226 | r = pwrite(req->file, req->bufs[0].base, req->bufs[0].len, req->off); |
| 1227 | } |
| 1228 | # if defined(__linux__1) |
| 1229 | else { |
| 1230 | r = uv__pwritev(req->file, |
| 1231 | (struct iovec*) req->bufs, |
| 1232 | req->nbufs, |
| 1233 | req->off); |
| 1234 | if (r == -1 && errno(*__errno_location ()) == ENOSYS38) { |
| 1235 | no_pwritev = 1; |
| 1236 | goto retry; |
| 1237 | } |
| 1238 | } |
| 1239 | # endif |
| 1240 | #endif |
| 1241 | } |
| 1242 | |
| 1243 | done: |
| 1244 | #if defined(__APPLE__) |
| 1245 | if (pthread_mutex_unlock(&lock)) |
| 1246 | abort(); |
| 1247 | #endif |
| 1248 | |
| 1249 | return r; |
| 1250 | } |
| 1251 | |
| 1252 | static ssize_t uv__fs_copyfile(uv_fs_t* req) { |
| 1253 | uv_fs_t fs_req; |
| 1254 | uv_file srcfd; |
| 1255 | uv_file dstfd; |
| 1256 | struct stat src_statsbuf; |
| 1257 | struct stat dst_statsbuf; |
| 1258 | int dst_flags; |
| 1259 | int result; |
| 1260 | int err; |
| 1261 | off_t bytes_to_send; |
| 1262 | off_t in_offset; |
| 1263 | off_t bytes_written; |
| 1264 | size_t bytes_chunk; |
| 1265 | |
| 1266 | dstfd = -1; |
| 1267 | err = 0; |
| 1268 | |
| 1269 | /* Open the source file. */ |
| 1270 | srcfd = uv_fs_open(NULL((void*)0), &fs_req, req->path, O_RDONLY00, 0, NULL((void*)0)); |
| 1271 | uv_fs_req_cleanup(&fs_req); |
| 1272 | |
| 1273 | if (srcfd < 0) |
| 1274 | return srcfd; |
| 1275 | |
| 1276 | /* Get the source file's mode. */ |
| 1277 | if (fstat(srcfd, &src_statsbuf)) { |
| 1278 | err = UV__ERR(errno)(-((*__errno_location ()))); |
| 1279 | goto out; |
| 1280 | } |
| 1281 | |
| 1282 | dst_flags = O_WRONLY01 | O_CREAT0100; |
| 1283 | |
| 1284 | if (req->flags & UV_FS_COPYFILE_EXCL0x0001) |
| 1285 | dst_flags |= O_EXCL0200; |
| 1286 | |
| 1287 | /* Open the destination file. */ |
| 1288 | dstfd = uv_fs_open(NULL((void*)0), |
| 1289 | &fs_req, |
| 1290 | req->new_path, |
| 1291 | dst_flags, |
| 1292 | src_statsbuf.st_mode, |
| 1293 | NULL((void*)0)); |
| 1294 | uv_fs_req_cleanup(&fs_req); |
| 1295 | |
| 1296 | if (dstfd < 0) { |
| 1297 | err = dstfd; |
| 1298 | goto out; |
| 1299 | } |
| 1300 | |
| 1301 | /* If the file is not being opened exclusively, verify that the source and |
| 1302 | destination are not the same file. If they are the same, bail out early. */ |
| 1303 | if ((req->flags & UV_FS_COPYFILE_EXCL0x0001) == 0) { |
| 1304 | /* Get the destination file's mode. */ |
| 1305 | if (fstat(dstfd, &dst_statsbuf)) { |
| 1306 | err = UV__ERR(errno)(-((*__errno_location ()))); |
| 1307 | goto out; |
| 1308 | } |
| 1309 | |
| 1310 | /* Check if srcfd and dstfd refer to the same file */ |
| 1311 | if (src_statsbuf.st_dev == dst_statsbuf.st_dev && |
| 1312 | src_statsbuf.st_ino == dst_statsbuf.st_ino) { |
| 1313 | goto out; |
| 1314 | } |
| 1315 | |
| 1316 | /* Truncate the file in case the destination already existed. */ |
| 1317 | if (ftruncate(dstfd, 0) != 0) { |
| 1318 | err = UV__ERR(errno)(-((*__errno_location ()))); |
| 1319 | goto out; |
| 1320 | } |
| 1321 | } |
| 1322 | |
| 1323 | if (fchmod(dstfd, src_statsbuf.st_mode) == -1) { |
| 1324 | err = UV__ERR(errno)(-((*__errno_location ()))); |
| 1325 | #ifdef __linux__1 |
| 1326 | /* fchmod() on CIFS shares always fails with EPERM unless the share is |
| 1327 | * mounted with "noperm". As fchmod() is a meaningless operation on such |
| 1328 | * shares anyway, detect that condition and squelch the error. |
| 1329 | */ |
| 1330 | if (err != UV_EPERM) |
| 1331 | goto out; |
| 1332 | |
| 1333 | if (!uv__is_cifs_or_smb(dstfd)) |
| 1334 | goto out; |
| 1335 | |
| 1336 | err = 0; |
| 1337 | #else /* !__linux__ */ |
| 1338 | goto out; |
| 1339 | #endif /* !__linux__ */ |
| 1340 | } |
| 1341 | |
| 1342 | #ifdef FICLONE(((1U) << (((0 +8)+8)+14)) | (((0x94)) << (0 +8)) | (((9)) << 0) | ((((sizeof(int)))) << ((0 +8)+8 ))) |
| 1343 | if (req->flags & UV_FS_COPYFILE_FICLONE0x0002 || |
| 1344 | req->flags & UV_FS_COPYFILE_FICLONE_FORCE0x0004) { |
| 1345 | if (ioctl(dstfd, FICLONE(((1U) << (((0 +8)+8)+14)) | (((0x94)) << (0 +8)) | (((9)) << 0) | ((((sizeof(int)))) << ((0 +8)+8 ))), srcfd) == 0) { |
| 1346 | /* ioctl() with FICLONE succeeded. */ |
| 1347 | goto out; |
| 1348 | } |
| 1349 | /* If an error occurred and force was set, return the error to the caller; |
| 1350 | * fall back to sendfile() when force was not set. */ |
| 1351 | if (req->flags & UV_FS_COPYFILE_FICLONE_FORCE0x0004) { |
| 1352 | err = UV__ERR(errno)(-((*__errno_location ()))); |
| 1353 | goto out; |
| 1354 | } |
| 1355 | } |
| 1356 | #else |
| 1357 | if (req->flags & UV_FS_COPYFILE_FICLONE_FORCE0x0004) { |
| 1358 | err = UV_ENOSYS; |
| 1359 | goto out; |
| 1360 | } |
| 1361 | #endif |
| 1362 | |
| 1363 | bytes_to_send = src_statsbuf.st_size; |
| 1364 | in_offset = 0; |
| 1365 | while (bytes_to_send != 0) { |
| 1366 | bytes_chunk = SSIZE_MAX9223372036854775807L; |
| 1367 | if (bytes_to_send < (off_t) bytes_chunk) |
| 1368 | bytes_chunk = bytes_to_send; |
| 1369 | uv_fs_sendfile(NULL((void*)0), &fs_req, dstfd, srcfd, in_offset, bytes_chunk, NULL((void*)0)); |
| 1370 | bytes_written = fs_req.result; |
| 1371 | uv_fs_req_cleanup(&fs_req); |
| 1372 | |
| 1373 | if (bytes_written < 0) { |
| 1374 | err = bytes_written; |
| 1375 | break; |
| 1376 | } |
| 1377 | |
| 1378 | bytes_to_send -= bytes_written; |
| 1379 | in_offset += bytes_written; |
| 1380 | } |
| 1381 | |
| 1382 | out: |
| 1383 | if (err < 0) |
| 1384 | result = err; |
| 1385 | else |
| 1386 | result = 0; |
| 1387 | |
| 1388 | /* Close the source file. */ |
| 1389 | err = uv__close_nocheckstdio(srcfd); |
| 1390 | |
| 1391 | /* Don't overwrite any existing errors. */ |
| 1392 | if (err != 0 && result == 0) |
| 1393 | result = err; |
| 1394 | |
| 1395 | /* Close the destination file if it is open. */ |
| 1396 | if (dstfd >= 0) { |
| 1397 | err = uv__close_nocheckstdio(dstfd); |
| 1398 | |
| 1399 | /* Don't overwrite any existing errors. */ |
| 1400 | if (err != 0 && result == 0) |
| 1401 | result = err; |
| 1402 | |
| 1403 | /* Remove the destination file if something went wrong. */ |
| 1404 | if (result != 0) { |
| 1405 | uv_fs_unlink(NULL((void*)0), &fs_req, req->new_path, NULL((void*)0)); |
| 1406 | /* Ignore the unlink return value, as an error already happened. */ |
| 1407 | uv_fs_req_cleanup(&fs_req); |
| 1408 | } |
| 1409 | } |
| 1410 | |
| 1411 | if (result == 0) |
| 1412 | return 0; |
| 1413 | |
| 1414 | errno(*__errno_location ()) = UV__ERR(result)(-(result)); |
| 1415 | return -1; |
| 1416 | } |
| 1417 | |
| 1418 | static void uv__to_stat(struct stat* src, uv_stat_t* dst) { |
| 1419 | dst->st_dev = src->st_dev; |
| 1420 | dst->st_mode = src->st_mode; |
| 1421 | dst->st_nlink = src->st_nlink; |
| 1422 | dst->st_uid = src->st_uid; |
| 1423 | dst->st_gid = src->st_gid; |
| 1424 | dst->st_rdev = src->st_rdev; |
| 1425 | dst->st_ino = src->st_ino; |
| 1426 | dst->st_size = src->st_size; |
| 1427 | dst->st_blksize = src->st_blksize; |
| 1428 | dst->st_blocks = src->st_blocks; |
| 1429 | |
| 1430 | #if defined(__APPLE__) |
| 1431 | dst->st_atim.tv_sec = src->st_atimespec.tv_sec; |
| 1432 | dst->st_atim.tv_nsec = src->st_atimespec.tv_nsec; |
| 1433 | dst->st_mtim.tv_sec = src->st_mtimespec.tv_sec; |
| 1434 | dst->st_mtim.tv_nsec = src->st_mtimespec.tv_nsec; |
| 1435 | dst->st_ctim.tv_sec = src->st_ctimespec.tv_sec; |
| 1436 | dst->st_ctim.tv_nsec = src->st_ctimespec.tv_nsec; |
| 1437 | dst->st_birthtim.tv_sec = src->st_birthtimespec.tv_sec; |
| 1438 | dst->st_birthtim.tv_nsec = src->st_birthtimespec.tv_nsec; |
| 1439 | dst->st_flags = src->st_flags; |
| 1440 | dst->st_gen = src->st_gen; |
| 1441 | #elif defined(__ANDROID__) |
| 1442 | dst->st_atim.tv_sec = src->st_atimest_atim.tv_sec; |
| 1443 | dst->st_atim.tv_nsec = src->st_atimensec; |
| 1444 | dst->st_mtim.tv_sec = src->st_mtimest_mtim.tv_sec; |
| 1445 | dst->st_mtim.tv_nsec = src->st_mtimensec; |
| 1446 | dst->st_ctim.tv_sec = src->st_ctimest_ctim.tv_sec; |
| 1447 | dst->st_ctim.tv_nsec = src->st_ctimensec; |
| 1448 | dst->st_birthtim.tv_sec = src->st_ctimest_ctim.tv_sec; |
| 1449 | dst->st_birthtim.tv_nsec = src->st_ctimensec; |
| 1450 | dst->st_flags = 0; |
| 1451 | dst->st_gen = 0; |
| 1452 | #elif !defined(_AIX) && \ |
| 1453 | !defined(__MVS__) && ( \ |
| 1454 | defined(__DragonFly__) || \ |
| 1455 | defined(__FreeBSD__) || \ |
| 1456 | defined(__OpenBSD__) || \ |
| 1457 | defined(__NetBSD__) || \ |
| 1458 | defined(_GNU_SOURCE1) || \ |
| 1459 | defined(_BSD_SOURCE) || \ |
| 1460 | defined(_SVID_SOURCE) || \ |
| 1461 | defined(_XOPEN_SOURCE700) || \ |
| 1462 | defined(_DEFAULT_SOURCE1)) |
| 1463 | dst->st_atim.tv_sec = src->st_atim.tv_sec; |
| 1464 | dst->st_atim.tv_nsec = src->st_atim.tv_nsec; |
| 1465 | dst->st_mtim.tv_sec = src->st_mtim.tv_sec; |
| 1466 | dst->st_mtim.tv_nsec = src->st_mtim.tv_nsec; |
| 1467 | dst->st_ctim.tv_sec = src->st_ctim.tv_sec; |
| 1468 | dst->st_ctim.tv_nsec = src->st_ctim.tv_nsec; |
| 1469 | # if defined(__FreeBSD__) || \ |
| 1470 | defined(__NetBSD__) |
| 1471 | dst->st_birthtim.tv_sec = src->st_birthtim.tv_sec; |
| 1472 | dst->st_birthtim.tv_nsec = src->st_birthtim.tv_nsec; |
| 1473 | dst->st_flags = src->st_flags; |
| 1474 | dst->st_gen = src->st_gen; |
| 1475 | # else |
| 1476 | dst->st_birthtim.tv_sec = src->st_ctim.tv_sec; |
| 1477 | dst->st_birthtim.tv_nsec = src->st_ctim.tv_nsec; |
| 1478 | dst->st_flags = 0; |
| 1479 | dst->st_gen = 0; |
| 1480 | # endif |
| 1481 | #else |
| 1482 | dst->st_atim.tv_sec = src->st_atimest_atim.tv_sec; |
| 1483 | dst->st_atim.tv_nsec = 0; |
| 1484 | dst->st_mtim.tv_sec = src->st_mtimest_mtim.tv_sec; |
| 1485 | dst->st_mtim.tv_nsec = 0; |
| 1486 | dst->st_ctim.tv_sec = src->st_ctimest_ctim.tv_sec; |
| 1487 | dst->st_ctim.tv_nsec = 0; |
| 1488 | dst->st_birthtim.tv_sec = src->st_ctimest_ctim.tv_sec; |
| 1489 | dst->st_birthtim.tv_nsec = 0; |
| 1490 | dst->st_flags = 0; |
| 1491 | dst->st_gen = 0; |
| 1492 | #endif |
| 1493 | } |
| 1494 | |
| 1495 | |
| 1496 | static int uv__fs_statx(int fd, |
| 1497 | const char* path, |
| 1498 | int is_fstat, |
| 1499 | int is_lstat, |
| 1500 | uv_stat_t* buf) { |
| 1501 | STATIC_ASSERT(UV_ENOSYS != -1)void uv__static_assert(int static_assert_failed[1 - 2 * !(UV_ENOSYS != -1)]); |
| 1502 | #ifdef __linux__1 |
| 1503 | static int no_statx; |
| 1504 | struct uv__statx statxbuf; |
| 1505 | int dirfd; |
| 1506 | int flags; |
| 1507 | int mode; |
| 1508 | int rc; |
| 1509 | |
| 1510 | if (uv__load_relaxed(&no_statx)(*&no_statx)) |
| 1511 | return UV_ENOSYS; |
| 1512 | |
| 1513 | dirfd = AT_FDCWD-100; |
| 1514 | flags = 0; /* AT_STATX_SYNC_AS_STAT */ |
| 1515 | mode = 0xFFF; /* STATX_BASIC_STATS + STATX_BTIME */ |
| 1516 | |
| 1517 | if (is_fstat) { |
| 1518 | dirfd = fd; |
| 1519 | flags |= 0x1000; /* AT_EMPTY_PATH */ |
| 1520 | } |
| 1521 | |
| 1522 | if (is_lstat) |
| 1523 | flags |= AT_SYMLINK_NOFOLLOW0x100; |
| 1524 | |
| 1525 | rc = uv__statx(dirfd, path, flags, mode, &statxbuf); |
| 1526 | |
| 1527 | switch (rc) { |
| 1528 | case 0: |
| 1529 | break; |
| 1530 | case -1: |
| 1531 | /* EPERM happens when a seccomp filter rejects the system call. |
| 1532 | * Has been observed with libseccomp < 2.3.3 and docker < 18.04. |
| 1533 | * EOPNOTSUPP is used on DVS exported filesystems |
| 1534 | */ |
| 1535 | if (errno(*__errno_location ()) != EINVAL22 && errno(*__errno_location ()) != EPERM1 && errno(*__errno_location ()) != ENOSYS38 && errno(*__errno_location ()) != EOPNOTSUPP95) |
| 1536 | return -1; |
| 1537 | /* Fall through. */ |
| 1538 | default: |
| 1539 | /* Normally on success, zero is returned and On error, -1 is returned. |
| 1540 | * Observed on S390 RHEL running in a docker container with statx not |
| 1541 | * implemented, rc might return 1 with 0 set as the error code in which |
| 1542 | * case we return ENOSYS. |
| 1543 | */ |
| 1544 | uv__store_relaxed(&no_statx, 1)do *&no_statx = 1; while (0); |
| 1545 | return UV_ENOSYS; |
| 1546 | } |
| 1547 | |
| 1548 | buf->st_dev = makedev(statxbuf.stx_dev_major, statxbuf.stx_dev_minor)gnu_dev_makedev (statxbuf.stx_dev_major, statxbuf.stx_dev_minor ); |
| 1549 | buf->st_mode = statxbuf.stx_mode; |
| 1550 | buf->st_nlink = statxbuf.stx_nlink; |
| 1551 | buf->st_uid = statxbuf.stx_uid; |
| 1552 | buf->st_gid = statxbuf.stx_gid; |
| 1553 | buf->st_rdev = makedev(statxbuf.stx_rdev_major, statxbuf.stx_rdev_minor)gnu_dev_makedev (statxbuf.stx_rdev_major, statxbuf.stx_rdev_minor ); |
| 1554 | buf->st_ino = statxbuf.stx_ino; |
| 1555 | buf->st_size = statxbuf.stx_size; |
| 1556 | buf->st_blksize = statxbuf.stx_blksize; |
| 1557 | buf->st_blocks = statxbuf.stx_blocks; |
| 1558 | buf->st_atim.tv_sec = statxbuf.stx_atime.tv_sec; |
| 1559 | buf->st_atim.tv_nsec = statxbuf.stx_atime.tv_nsec; |
| 1560 | buf->st_mtim.tv_sec = statxbuf.stx_mtime.tv_sec; |
| 1561 | buf->st_mtim.tv_nsec = statxbuf.stx_mtime.tv_nsec; |
| 1562 | buf->st_ctim.tv_sec = statxbuf.stx_ctime.tv_sec; |
| 1563 | buf->st_ctim.tv_nsec = statxbuf.stx_ctime.tv_nsec; |
| 1564 | buf->st_birthtim.tv_sec = statxbuf.stx_btime.tv_sec; |
| 1565 | buf->st_birthtim.tv_nsec = statxbuf.stx_btime.tv_nsec; |
| 1566 | buf->st_flags = 0; |
| 1567 | buf->st_gen = 0; |
| 1568 | |
| 1569 | return 0; |
| 1570 | #else |
| 1571 | return UV_ENOSYS; |
| 1572 | #endif /* __linux__ */ |
| 1573 | } |
| 1574 | |
| 1575 | |
| 1576 | static int uv__fs_stat(const char *path, uv_stat_t *buf) { |
| 1577 | struct stat pbuf; |
| 1578 | int ret; |
| 1579 | |
| 1580 | ret = uv__fs_statx(-1, path, /* is_fstat */ 0, /* is_lstat */ 0, buf); |
| 1581 | if (ret != UV_ENOSYS) |
| 1582 | return ret; |
| 1583 | |
| 1584 | ret = stat(path, &pbuf); |
| 1585 | if (ret == 0) |
| 1586 | uv__to_stat(&pbuf, buf); |
| 1587 | |
| 1588 | return ret; |
| 1589 | } |
| 1590 | |
| 1591 | |
| 1592 | static int uv__fs_lstat(const char *path, uv_stat_t *buf) { |
| 1593 | struct stat pbuf; |
| 1594 | int ret; |
| 1595 | |
| 1596 | ret = uv__fs_statx(-1, path, /* is_fstat */ 0, /* is_lstat */ 1, buf); |
| 1597 | if (ret != UV_ENOSYS) |
| 1598 | return ret; |
| 1599 | |
| 1600 | ret = lstat(path, &pbuf); |
| 1601 | if (ret == 0) |
| 1602 | uv__to_stat(&pbuf, buf); |
| 1603 | |
| 1604 | return ret; |
| 1605 | } |
| 1606 | |
| 1607 | |
| 1608 | static int uv__fs_fstat(int fd, uv_stat_t *buf) { |
| 1609 | struct stat pbuf; |
| 1610 | int ret; |
| 1611 | |
| 1612 | ret = uv__fs_statx(fd, "", /* is_fstat */ 1, /* is_lstat */ 0, buf); |
| 1613 | if (ret != UV_ENOSYS) |
| 1614 | return ret; |
| 1615 | |
| 1616 | ret = fstat(fd, &pbuf); |
| 1617 | if (ret == 0) |
| 1618 | uv__to_stat(&pbuf, buf); |
| 1619 | |
| 1620 | return ret; |
| 1621 | } |
| 1622 | |
| 1623 | static size_t uv__fs_buf_offset(uv_buf_t* bufs, size_t size) { |
| 1624 | size_t offset; |
| 1625 | /* Figure out which bufs are done */ |
| 1626 | for (offset = 0; size > 0 && bufs[offset].len <= size; ++offset) |
| 1627 | size -= bufs[offset].len; |
| 1628 | |
| 1629 | /* Fix a partial read/write */ |
| 1630 | if (size > 0) { |
| 1631 | bufs[offset].base += size; |
| 1632 | bufs[offset].len -= size; |
| 1633 | } |
| 1634 | return offset; |
| 1635 | } |
| 1636 | |
| 1637 | static ssize_t uv__fs_write_all(uv_fs_t* req) { |
| 1638 | unsigned int iovmax; |
| 1639 | unsigned int nbufs; |
| 1640 | uv_buf_t* bufs; |
| 1641 | ssize_t total; |
| 1642 | ssize_t result; |
| 1643 | |
| 1644 | iovmax = uv__getiovmax(); |
| 1645 | nbufs = req->nbufs; |
| 1646 | bufs = req->bufs; |
| 1647 | total = 0; |
| 1648 | |
| 1649 | while (nbufs > 0) { |
| 1650 | req->nbufs = nbufs; |
| 1651 | if (req->nbufs > iovmax) |
| 1652 | req->nbufs = iovmax; |
| 1653 | |
| 1654 | do |
| 1655 | result = uv__fs_write(req); |
| 1656 | while (result < 0 && errno(*__errno_location ()) == EINTR4); |
| 1657 | |
| 1658 | if (result <= 0) { |
| 1659 | if (total == 0) |
| 1660 | total = result; |
| 1661 | break; |
| 1662 | } |
| 1663 | |
| 1664 | if (req->off >= 0) |
| 1665 | req->off += result; |
| 1666 | |
| 1667 | req->nbufs = uv__fs_buf_offset(req->bufs, result); |
| 1668 | req->bufs += req->nbufs; |
| 1669 | nbufs -= req->nbufs; |
| 1670 | total += result; |
| 1671 | } |
| 1672 | |
| 1673 | if (bufs != req->bufsml) |
| 1674 | uv__free(bufs); |
| 1675 | |
| 1676 | req->bufs = NULL((void*)0); |
| 1677 | req->nbufs = 0; |
| 1678 | |
| 1679 | return total; |
| 1680 | } |
| 1681 | |
| 1682 | |
| 1683 | static void uv__fs_work(struct uv__work* w) { |
| 1684 | int retry_on_eintr; |
| 1685 | uv_fs_t* req; |
| 1686 | ssize_t r; |
| 1687 | |
| 1688 | req = container_of(w, uv_fs_t, work_req)((uv_fs_t *) ((char *) (w) - __builtin_offsetof(uv_fs_t, work_req ))); |
| 1689 | retry_on_eintr = !(req->fs_type == UV_FS_CLOSE || |
| 1690 | req->fs_type == UV_FS_READ); |
| 1691 | |
| 1692 | do { |
| 1693 | errno(*__errno_location ()) = 0; |
| 1694 | |
| 1695 | #define X(type, action) \ |
| 1696 | case UV_FS_ ## type: \ |
| 1697 | r = action; \ |
| 1698 | break; |
| 1699 | |
| 1700 | switch (req->fs_type) { |
| 1701 | X(ACCESS, access(req->path, req->flags)); |
| 1702 | X(CHMOD, chmod(req->path, req->mode)); |
| 1703 | X(CHOWN, chown(req->path, req->uid, req->gid)); |
| 1704 | X(CLOSE, uv__fs_close(req->file)); |
| 1705 | X(COPYFILE, uv__fs_copyfile(req)); |
| 1706 | X(FCHMOD, fchmod(req->file, req->mode)); |
| 1707 | X(FCHOWN, fchown(req->file, req->uid, req->gid)); |
| 1708 | X(LCHOWN, lchown(req->path, req->uid, req->gid)); |
| 1709 | X(FDATASYNC, uv__fs_fdatasync(req)); |
| 1710 | X(FSTAT, uv__fs_fstat(req->file, &req->statbuf)); |
| 1711 | X(FSYNC, uv__fs_fsync(req)); |
| 1712 | X(FTRUNCATE, ftruncate(req->file, req->off)); |
| 1713 | X(FUTIME, uv__fs_futime(req)); |
| 1714 | X(LUTIME, uv__fs_lutime(req)); |
| 1715 | X(LSTAT, uv__fs_lstat(req->path, &req->statbuf)); |
| 1716 | X(LINK, link(req->path, req->new_path)); |
| 1717 | X(MKDIR, mkdir(req->path, req->mode)); |
| 1718 | X(MKDTEMP, uv__fs_mkdtemp(req)); |
| 1719 | X(MKSTEMP, uv__fs_mkstemp(req)); |
| 1720 | X(OPEN, uv__fs_open(req)); |
| 1721 | X(READ, uv__fs_read(req)); |
| 1722 | X(SCANDIR, uv__fs_scandir(req)); |
| 1723 | X(OPENDIR, uv__fs_opendir(req)); |
| 1724 | X(READDIR, uv__fs_readdir(req)); |
| 1725 | X(CLOSEDIR, uv__fs_closedir(req)); |
| 1726 | X(READLINK, uv__fs_readlink(req)); |
| 1727 | X(REALPATH, uv__fs_realpath(req)); |
| 1728 | X(RENAME, rename(req->path, req->new_path)); |
| 1729 | X(RMDIR, rmdir(req->path)); |
| 1730 | X(SENDFILE, uv__fs_sendfile(req)); |
| 1731 | X(STAT, uv__fs_stat(req->path, &req->statbuf)); |
| 1732 | X(STATFS, uv__fs_statfs(req)); |
| 1733 | X(SYMLINK, symlink(req->path, req->new_path)); |
| 1734 | X(UNLINK, unlink(req->path)); |
| 1735 | X(UTIME, uv__fs_utime(req)); |
| 1736 | X(WRITE, uv__fs_write_all(req)); |
| 1737 | default: abort(); |
| 1738 | } |
| 1739 | #undef X |
| 1740 | } while (r == -1 && errno(*__errno_location ()) == EINTR4 && retry_on_eintr); |
| 1741 | |
| 1742 | if (r == -1) |
| 1743 | req->result = UV__ERR(errno)(-((*__errno_location ()))); |
| 1744 | else |
| 1745 | req->result = r; |
| 1746 | |
| 1747 | if (r == 0 && (req->fs_type == UV_FS_STAT || |
| 1748 | req->fs_type == UV_FS_FSTAT || |
| 1749 | req->fs_type == UV_FS_LSTAT)) { |
| 1750 | req->ptr = &req->statbuf; |
| 1751 | } |
| 1752 | } |
| 1753 | |
| 1754 | |
| 1755 | static void uv__fs_done(struct uv__work* w, int status) { |
| 1756 | uv_fs_t* req; |
| 1757 | |
| 1758 | req = container_of(w, uv_fs_t, work_req)((uv_fs_t *) ((char *) (w) - __builtin_offsetof(uv_fs_t, work_req ))); |
| 1759 | uv__req_unregister(req->loop, req)do { ((void) sizeof ((((req->loop)->active_reqs.count > 0)) ? 1 : 0), __extension__ ({ if (((req->loop)->active_reqs .count > 0)) ; else __assert_fail ("uv__has_active_reqs(req->loop)" , "../deps/uv/src/unix/fs.c", 1759, __extension__ __PRETTY_FUNCTION__ ); })); (req->loop)->active_reqs.count--; } while (0); |
| 1760 | |
| 1761 | if (status == UV_ECANCELED) { |
| 1762 | assert(req->result == 0)((void) sizeof ((req->result == 0) ? 1 : 0), __extension__ ({ if (req->result == 0) ; else __assert_fail ("req->result == 0" , "../deps/uv/src/unix/fs.c", 1762, __extension__ __PRETTY_FUNCTION__ ); })); |
| 1763 | req->result = UV_ECANCELED; |
| 1764 | } |
| 1765 | |
| 1766 | req->cb(req); |
| 1767 | } |
| 1768 | |
| 1769 | |
| 1770 | int uv_fs_access(uv_loop_t* loop, |
| 1771 | uv_fs_t* req, |
| 1772 | const char* path, |
| 1773 | int flags, |
| 1774 | uv_fs_cb cb) { |
| 1775 | INIT(ACCESS)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_ACCESS; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1776 | PATHdo { ((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ({ if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 1776, __extension__ __PRETTY_FUNCTION__ ); })); if (cb == ((void*)0)) { req->path = path; } else { req->path = uv__strdup(path); if (req->path == ((void* )0)) return UV_ENOMEM; } } while (0); |
| 1777 | req->flags = flags; |
| 1778 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1779 | } |
| 1780 | |
| 1781 | |
| 1782 | int uv_fs_chmod(uv_loop_t* loop, |
| 1783 | uv_fs_t* req, |
| 1784 | const char* path, |
| 1785 | int mode, |
| 1786 | uv_fs_cb cb) { |
| 1787 | INIT(CHMOD)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_CHMOD; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1788 | PATHdo { ((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ({ if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 1788, __extension__ __PRETTY_FUNCTION__ ); })); if (cb == ((void*)0)) { req->path = path; } else { req->path = uv__strdup(path); if (req->path == ((void* )0)) return UV_ENOMEM; } } while (0); |
| 1789 | req->mode = mode; |
| 1790 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1791 | } |
| 1792 | |
| 1793 | |
| 1794 | int uv_fs_chown(uv_loop_t* loop, |
| 1795 | uv_fs_t* req, |
| 1796 | const char* path, |
| 1797 | uv_uid_t uid, |
| 1798 | uv_gid_t gid, |
| 1799 | uv_fs_cb cb) { |
| 1800 | INIT(CHOWN)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_CHOWN; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1801 | PATHdo { ((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ({ if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 1801, __extension__ __PRETTY_FUNCTION__ ); })); if (cb == ((void*)0)) { req->path = path; } else { req->path = uv__strdup(path); if (req->path == ((void* )0)) return UV_ENOMEM; } } while (0); |
| 1802 | req->uid = uid; |
| 1803 | req->gid = gid; |
| 1804 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1805 | } |
| 1806 | |
| 1807 | |
| 1808 | int uv_fs_close(uv_loop_t* loop, uv_fs_t* req, uv_file file, uv_fs_cb cb) { |
| 1809 | INIT(CLOSE)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_CLOSE; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1810 | req->file = file; |
| 1811 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1812 | } |
| 1813 | |
| 1814 | |
| 1815 | int uv_fs_fchmod(uv_loop_t* loop, |
| 1816 | uv_fs_t* req, |
| 1817 | uv_file file, |
| 1818 | int mode, |
| 1819 | uv_fs_cb cb) { |
| 1820 | INIT(FCHMOD)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_FCHMOD; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1821 | req->file = file; |
| 1822 | req->mode = mode; |
| 1823 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1824 | } |
| 1825 | |
| 1826 | |
| 1827 | int uv_fs_fchown(uv_loop_t* loop, |
| 1828 | uv_fs_t* req, |
| 1829 | uv_file file, |
| 1830 | uv_uid_t uid, |
| 1831 | uv_gid_t gid, |
| 1832 | uv_fs_cb cb) { |
| 1833 | INIT(FCHOWN)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_FCHOWN; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1834 | req->file = file; |
| 1835 | req->uid = uid; |
| 1836 | req->gid = gid; |
| 1837 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1838 | } |
| 1839 | |
| 1840 | |
| 1841 | int uv_fs_lchown(uv_loop_t* loop, |
| 1842 | uv_fs_t* req, |
| 1843 | const char* path, |
| 1844 | uv_uid_t uid, |
| 1845 | uv_gid_t gid, |
| 1846 | uv_fs_cb cb) { |
| 1847 | INIT(LCHOWN)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_LCHOWN; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1848 | PATHdo { ((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ({ if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 1848, __extension__ __PRETTY_FUNCTION__ ); })); if (cb == ((void*)0)) { req->path = path; } else { req->path = uv__strdup(path); if (req->path == ((void* )0)) return UV_ENOMEM; } } while (0); |
| 1849 | req->uid = uid; |
| 1850 | req->gid = gid; |
| 1851 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1852 | } |
| 1853 | |
| 1854 | |
| 1855 | int uv_fs_fdatasync(uv_loop_t* loop, uv_fs_t* req, uv_file file, uv_fs_cb cb) { |
| 1856 | INIT(FDATASYNC)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_FDATASYNC ; req->result = 0; req->ptr = ((void*)0); req->loop = loop; req->path = ((void*)0); req->new_path = ((void*) 0); req->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1857 | req->file = file; |
| 1858 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1859 | } |
| 1860 | |
| 1861 | |
| 1862 | int uv_fs_fstat(uv_loop_t* loop, uv_fs_t* req, uv_file file, uv_fs_cb cb) { |
| 1863 | INIT(FSTAT)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_FSTAT; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1864 | req->file = file; |
| 1865 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1866 | } |
| 1867 | |
| 1868 | |
| 1869 | int uv_fs_fsync(uv_loop_t* loop, uv_fs_t* req, uv_file file, uv_fs_cb cb) { |
| 1870 | INIT(FSYNC)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_FSYNC; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1871 | req->file = file; |
| 1872 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1873 | } |
| 1874 | |
| 1875 | |
| 1876 | int uv_fs_ftruncate(uv_loop_t* loop, |
| 1877 | uv_fs_t* req, |
| 1878 | uv_file file, |
| 1879 | int64_t off, |
| 1880 | uv_fs_cb cb) { |
| 1881 | INIT(FTRUNCATE)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_FTRUNCATE ; req->result = 0; req->ptr = ((void*)0); req->loop = loop; req->path = ((void*)0); req->new_path = ((void*) 0); req->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1882 | req->file = file; |
| 1883 | req->off = off; |
| 1884 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1885 | } |
| 1886 | |
| 1887 | |
| 1888 | int uv_fs_futime(uv_loop_t* loop, |
| 1889 | uv_fs_t* req, |
| 1890 | uv_file file, |
| 1891 | double atime, |
| 1892 | double mtime, |
| 1893 | uv_fs_cb cb) { |
| 1894 | INIT(FUTIME)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_FUTIME; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1895 | req->file = file; |
| 1896 | req->atime = atime; |
| 1897 | req->mtime = mtime; |
| 1898 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1899 | } |
| 1900 | |
| 1901 | int uv_fs_lutime(uv_loop_t* loop, |
| 1902 | uv_fs_t* req, |
| 1903 | const char* path, |
| 1904 | double atime, |
| 1905 | double mtime, |
| 1906 | uv_fs_cb cb) { |
| 1907 | INIT(LUTIME)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_LUTIME; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1908 | PATHdo { ((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ({ if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 1908, __extension__ __PRETTY_FUNCTION__ ); })); if (cb == ((void*)0)) { req->path = path; } else { req->path = uv__strdup(path); if (req->path == ((void* )0)) return UV_ENOMEM; } } while (0); |
| 1909 | req->atime = atime; |
| 1910 | req->mtime = mtime; |
| 1911 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1912 | } |
| 1913 | |
| 1914 | |
| 1915 | int uv_fs_lstat(uv_loop_t* loop, uv_fs_t* req, const char* path, uv_fs_cb cb) { |
| 1916 | INIT(LSTAT)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_LSTAT; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1917 | PATHdo { ((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ({ if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 1917, __extension__ __PRETTY_FUNCTION__ ); })); if (cb == ((void*)0)) { req->path = path; } else { req->path = uv__strdup(path); if (req->path == ((void* )0)) return UV_ENOMEM; } } while (0); |
| 1918 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1919 | } |
| 1920 | |
| 1921 | |
| 1922 | int uv_fs_link(uv_loop_t* loop, |
| 1923 | uv_fs_t* req, |
| 1924 | const char* path, |
| 1925 | const char* new_path, |
| 1926 | uv_fs_cb cb) { |
| 1927 | INIT(LINK)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_LINK; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1928 | PATH2do { if (cb == ((void*)0)) { req->path = path; req->new_path = new_path; } else { size_t path_len; size_t new_path_len; path_len = strlen(path) + 1; new_path_len = strlen(new_path) + 1; req ->path = uv__malloc(path_len + new_path_len); if (req-> path == ((void*)0)) return UV_ENOMEM; req->new_path = req-> path + path_len; memcpy((void*) req->path, path, path_len) ; memcpy((void*) req->new_path, new_path, new_path_len); } } while (0); |
| 1929 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1930 | } |
| 1931 | |
| 1932 | |
| 1933 | int uv_fs_mkdir(uv_loop_t* loop, |
| 1934 | uv_fs_t* req, |
| 1935 | const char* path, |
| 1936 | int mode, |
| 1937 | uv_fs_cb cb) { |
| 1938 | INIT(MKDIR)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_MKDIR; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1939 | PATHdo { ((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ({ if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 1939, __extension__ __PRETTY_FUNCTION__ ); })); if (cb == ((void*)0)) { req->path = path; } else { req->path = uv__strdup(path); if (req->path == ((void* )0)) return UV_ENOMEM; } } while (0); |
| 1940 | req->mode = mode; |
| 1941 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1942 | } |
| 1943 | |
| 1944 | |
| 1945 | int uv_fs_mkdtemp(uv_loop_t* loop, |
| 1946 | uv_fs_t* req, |
| 1947 | const char* tpl, |
| 1948 | uv_fs_cb cb) { |
| 1949 | INIT(MKDTEMP)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_MKDTEMP; req->result = 0; req->ptr = ((void*)0); req->loop = loop; req->path = ((void*)0); req->new_path = ((void*) 0); req->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1950 | req->path = uv__strdup(tpl); |
| 1951 | if (req->path == NULL((void*)0)) |
| 1952 | return UV_ENOMEM; |
| 1953 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1954 | } |
| 1955 | |
| 1956 | |
| 1957 | int uv_fs_mkstemp(uv_loop_t* loop, |
| 1958 | uv_fs_t* req, |
| 1959 | const char* tpl, |
| 1960 | uv_fs_cb cb) { |
| 1961 | INIT(MKSTEMP)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_MKSTEMP; req->result = 0; req->ptr = ((void*)0); req->loop = loop; req->path = ((void*)0); req->new_path = ((void*) 0); req->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1962 | req->path = uv__strdup(tpl); |
| 1963 | if (req->path == NULL((void*)0)) |
| 1964 | return UV_ENOMEM; |
| 1965 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1966 | } |
| 1967 | |
| 1968 | |
| 1969 | int uv_fs_open(uv_loop_t* loop, |
| 1970 | uv_fs_t* req, |
| 1971 | const char* path, |
| 1972 | int flags, |
| 1973 | int mode, |
| 1974 | uv_fs_cb cb) { |
| 1975 | INIT(OPEN)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_OPEN; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1976 | PATHdo { ((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ({ if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 1976, __extension__ __PRETTY_FUNCTION__ ); })); if (cb == ((void*)0)) { req->path = path; } else { req->path = uv__strdup(path); if (req->path == ((void* )0)) return UV_ENOMEM; } } while (0); |
| 1977 | req->flags = flags; |
| 1978 | req->mode = mode; |
| 1979 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 1980 | } |
| 1981 | |
| 1982 | |
| 1983 | int uv_fs_read(uv_loop_t* loop, uv_fs_t* req, |
| 1984 | uv_file file, |
| 1985 | const uv_buf_t bufs[], |
| 1986 | unsigned int nbufs, |
| 1987 | int64_t off, |
| 1988 | uv_fs_cb cb) { |
| 1989 | INIT(READ)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_READ; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 1990 | |
| 1991 | if (bufs == NULL((void*)0) || nbufs == 0) |
| 1992 | return UV_EINVAL; |
| 1993 | |
| 1994 | req->file = file; |
| 1995 | |
| 1996 | req->nbufs = nbufs; |
| 1997 | req->bufs = req->bufsml; |
| 1998 | if (nbufs > ARRAY_SIZE(req->bufsml)(sizeof(req->bufsml) / sizeof((req->bufsml)[0]))) |
| 1999 | req->bufs = uv__malloc(nbufs * sizeof(*bufs)); |
| 2000 | |
| 2001 | if (req->bufs == NULL((void*)0)) |
| 2002 | return UV_ENOMEM; |
| 2003 | |
| 2004 | memcpy(req->bufs, bufs, nbufs * sizeof(*bufs)); |
| 2005 | |
| 2006 | req->off = off; |
| 2007 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 2008 | } |
| 2009 | |
| 2010 | |
| 2011 | int uv_fs_scandir(uv_loop_t* loop, |
| 2012 | uv_fs_t* req, |
| 2013 | const char* path, |
| 2014 | int flags, |
| 2015 | uv_fs_cb cb) { |
| 2016 | INIT(SCANDIR)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_SCANDIR; req->result = 0; req->ptr = ((void*)0); req->loop = loop; req->path = ((void*)0); req->new_path = ((void*) 0); req->bufs = ((void*)0); req->cb = cb; } while (0); |
| 2017 | PATHdo { ((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ({ if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 2017, __extension__ __PRETTY_FUNCTION__ ); })); if (cb == ((void*)0)) { req->path = path; } else { req->path = uv__strdup(path); if (req->path == ((void* )0)) return UV_ENOMEM; } } while (0); |
| 2018 | req->flags = flags; |
| 2019 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 2020 | } |
| 2021 | |
| 2022 | int uv_fs_opendir(uv_loop_t* loop, |
| 2023 | uv_fs_t* req, |
| 2024 | const char* path, |
| 2025 | uv_fs_cb cb) { |
| 2026 | INIT(OPENDIR)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_OPENDIR; req->result = 0; req->ptr = ((void*)0); req->loop = loop; req->path = ((void*)0); req->new_path = ((void*) 0); req->bufs = ((void*)0); req->cb = cb; } while (0); |
| 2027 | PATHdo { ((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ({ if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 2027, __extension__ __PRETTY_FUNCTION__ ); })); if (cb == ((void*)0)) { req->path = path; } else { req->path = uv__strdup(path); if (req->path == ((void* )0)) return UV_ENOMEM; } } while (0); |
| 2028 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 2029 | } |
| 2030 | |
| 2031 | int uv_fs_readdir(uv_loop_t* loop, |
| 2032 | uv_fs_t* req, |
| 2033 | uv_dir_t* dir, |
| 2034 | uv_fs_cb cb) { |
| 2035 | INIT(READDIR)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_READDIR; req->result = 0; req->ptr = ((void*)0); req->loop = loop; req->path = ((void*)0); req->new_path = ((void*) 0); req->bufs = ((void*)0); req->cb = cb; } while (0); |
| 2036 | |
| 2037 | if (dir == NULL((void*)0) || dir->dir == NULL((void*)0) || dir->dirents == NULL((void*)0)) |
| 2038 | return UV_EINVAL; |
| 2039 | |
| 2040 | req->ptr = dir; |
| 2041 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 2042 | } |
| 2043 | |
| 2044 | int uv_fs_closedir(uv_loop_t* loop, |
| 2045 | uv_fs_t* req, |
| 2046 | uv_dir_t* dir, |
| 2047 | uv_fs_cb cb) { |
| 2048 | INIT(CLOSEDIR)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_CLOSEDIR ; req->result = 0; req->ptr = ((void*)0); req->loop = loop; req->path = ((void*)0); req->new_path = ((void*) 0); req->bufs = ((void*)0); req->cb = cb; } while (0); |
| 2049 | |
| 2050 | if (dir == NULL((void*)0)) |
| 2051 | return UV_EINVAL; |
| 2052 | |
| 2053 | req->ptr = dir; |
| 2054 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 2055 | } |
| 2056 | |
| 2057 | int uv_fs_readlink(uv_loop_t* loop, |
| 2058 | uv_fs_t* req, |
| 2059 | const char* path, |
| 2060 | uv_fs_cb cb) { |
| 2061 | INIT(READLINK)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_READLINK ; req->result = 0; req->ptr = ((void*)0); req->loop = loop; req->path = ((void*)0); req->new_path = ((void*) 0); req->bufs = ((void*)0); req->cb = cb; } while (0); |
| 2062 | PATHdo { ((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ({ if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 2062, __extension__ __PRETTY_FUNCTION__ ); })); if (cb == ((void*)0)) { req->path = path; } else { req->path = uv__strdup(path); if (req->path == ((void* )0)) return UV_ENOMEM; } } while (0); |
| 2063 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 2064 | } |
| 2065 | |
| 2066 | |
| 2067 | int uv_fs_realpath(uv_loop_t* loop, |
| 2068 | uv_fs_t* req, |
| 2069 | const char * path, |
| 2070 | uv_fs_cb cb) { |
| 2071 | INIT(REALPATH)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_REALPATH ; req->result = 0; req->ptr = ((void*)0); req->loop = loop; req->path = ((void*)0); req->new_path = ((void*) 0); req->bufs = ((void*)0); req->cb = cb; } while (0); |
| 2072 | PATHdo { ((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ({ if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 2072, __extension__ __PRETTY_FUNCTION__ ); })); if (cb == ((void*)0)) { req->path = path; } else { req->path = uv__strdup(path); if (req->path == ((void* )0)) return UV_ENOMEM; } } while (0); |
| 2073 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 2074 | } |
| 2075 | |
| 2076 | |
| 2077 | int uv_fs_rename(uv_loop_t* loop, |
| 2078 | uv_fs_t* req, |
| 2079 | const char* path, |
| 2080 | const char* new_path, |
| 2081 | uv_fs_cb cb) { |
| 2082 | INIT(RENAME)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_RENAME; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 2083 | PATH2do { if (cb == ((void*)0)) { req->path = path; req->new_path = new_path; } else { size_t path_len; size_t new_path_len; path_len = strlen(path) + 1; new_path_len = strlen(new_path) + 1; req ->path = uv__malloc(path_len + new_path_len); if (req-> path == ((void*)0)) return UV_ENOMEM; req->new_path = req-> path + path_len; memcpy((void*) req->path, path, path_len) ; memcpy((void*) req->new_path, new_path, new_path_len); } } while (0); |
| 2084 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 2085 | } |
| 2086 | |
| 2087 | |
| 2088 | int uv_fs_rmdir(uv_loop_t* loop, uv_fs_t* req, const char* path, uv_fs_cb cb) { |
| 2089 | INIT(RMDIR)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_RMDIR; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 2090 | PATHdo { ((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ({ if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 2090, __extension__ __PRETTY_FUNCTION__ ); })); if (cb == ((void*)0)) { req->path = path; } else { req->path = uv__strdup(path); if (req->path == ((void* )0)) return UV_ENOMEM; } } while (0); |
| 2091 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 2092 | } |
| 2093 | |
| 2094 | |
| 2095 | int uv_fs_sendfile(uv_loop_t* loop, |
| 2096 | uv_fs_t* req, |
| 2097 | uv_file out_fd, |
| 2098 | uv_file in_fd, |
| 2099 | int64_t off, |
| 2100 | size_t len, |
| 2101 | uv_fs_cb cb) { |
| 2102 | INIT(SENDFILE)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_SENDFILE ; req->result = 0; req->ptr = ((void*)0); req->loop = loop; req->path = ((void*)0); req->new_path = ((void*) 0); req->bufs = ((void*)0); req->cb = cb; } while (0); |
| 2103 | req->flags = in_fd; /* hack */ |
| 2104 | req->file = out_fd; |
| 2105 | req->off = off; |
| 2106 | req->bufsml[0].len = len; |
| 2107 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 2108 | } |
| 2109 | |
| 2110 | |
| 2111 | int uv_fs_stat(uv_loop_t* loop, uv_fs_t* req, const char* path, uv_fs_cb cb) { |
| 2112 | INIT(STAT)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_STAT; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 2113 | PATHdo { ((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ({ if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 2113, __extension__ __PRETTY_FUNCTION__ ); })); if (cb == ((void*)0)) { req->path = path; } else { req->path = uv__strdup(path); if (req->path == ((void* )0)) return UV_ENOMEM; } } while (0); |
| 2114 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 2115 | } |
| 2116 | |
| 2117 | |
| 2118 | int uv_fs_symlink(uv_loop_t* loop, |
| 2119 | uv_fs_t* req, |
| 2120 | const char* path, |
| 2121 | const char* new_path, |
| 2122 | int flags, |
| 2123 | uv_fs_cb cb) { |
| 2124 | INIT(SYMLINK)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_SYMLINK; req->result = 0; req->ptr = ((void*)0); req->loop = loop; req->path = ((void*)0); req->new_path = ((void*) 0); req->bufs = ((void*)0); req->cb = cb; } while (0); |
| 2125 | PATH2do { if (cb == ((void*)0)) { req->path = path; req->new_path = new_path; } else { size_t path_len; size_t new_path_len; path_len = strlen(path) + 1; new_path_len = strlen(new_path) + 1; req ->path = uv__malloc(path_len + new_path_len); if (req-> path == ((void*)0)) return UV_ENOMEM; req->new_path = req-> path + path_len; memcpy((void*) req->path, path, path_len) ; memcpy((void*) req->new_path, new_path, new_path_len); } } while (0); |
| 2126 | req->flags = flags; |
| 2127 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 2128 | } |
| 2129 | |
| 2130 | |
| 2131 | int uv_fs_unlink(uv_loop_t* loop, uv_fs_t* req, const char* path, uv_fs_cb cb) { |
| 2132 | INIT(UNLINK)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_UNLINK; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 2133 | PATHdo { ((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ({ if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 2133, __extension__ __PRETTY_FUNCTION__ ); })); if (cb == ((void*)0)) { req->path = path; } else { req->path = uv__strdup(path); if (req->path == ((void* )0)) return UV_ENOMEM; } } while (0); |
| 2134 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 2135 | } |
| 2136 | |
| 2137 | |
| 2138 | int uv_fs_utime(uv_loop_t* loop, |
| 2139 | uv_fs_t* req, |
| 2140 | const char* path, |
| 2141 | double atime, |
| 2142 | double mtime, |
| 2143 | uv_fs_cb cb) { |
| 2144 | INIT(UTIME)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_UTIME; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 2145 | PATHdo { ((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ({ if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 2145, __extension__ __PRETTY_FUNCTION__ ); })); if (cb == ((void*)0)) { req->path = path; } else { req->path = uv__strdup(path); if (req->path == ((void* )0)) return UV_ENOMEM; } } while (0); |
| 2146 | req->atime = atime; |
| 2147 | req->mtime = mtime; |
| 2148 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 2149 | } |
| 2150 | |
| 2151 | |
| 2152 | int uv_fs_write(uv_loop_t* loop, |
| 2153 | uv_fs_t* req, |
| 2154 | uv_file file, |
| 2155 | const uv_buf_t bufs[], |
| 2156 | unsigned int nbufs, |
| 2157 | int64_t off, |
| 2158 | uv_fs_cb cb) { |
| 2159 | INIT(WRITE)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_WRITE; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 2160 | |
| 2161 | if (bufs == NULL((void*)0) || nbufs == 0) |
| 2162 | return UV_EINVAL; |
| 2163 | |
| 2164 | req->file = file; |
| 2165 | |
| 2166 | req->nbufs = nbufs; |
| 2167 | req->bufs = req->bufsml; |
| 2168 | if (nbufs > ARRAY_SIZE(req->bufsml)(sizeof(req->bufsml) / sizeof((req->bufsml)[0]))) |
| 2169 | req->bufs = uv__malloc(nbufs * sizeof(*bufs)); |
| 2170 | |
| 2171 | if (req->bufs == NULL((void*)0)) |
| 2172 | return UV_ENOMEM; |
| 2173 | |
| 2174 | memcpy(req->bufs, bufs, nbufs * sizeof(*bufs)); |
| 2175 | |
| 2176 | req->off = off; |
| 2177 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 2178 | } |
| 2179 | |
| 2180 | |
| 2181 | void uv_fs_req_cleanup(uv_fs_t* req) { |
| 2182 | if (req == NULL((void*)0)) |
| 2183 | return; |
| 2184 | |
| 2185 | /* Only necessary for asychronous requests, i.e., requests with a callback. |
| 2186 | * Synchronous ones don't copy their arguments and have req->path and |
| 2187 | * req->new_path pointing to user-owned memory. UV_FS_MKDTEMP and |
| 2188 | * UV_FS_MKSTEMP are the exception to the rule, they always allocate memory. |
| 2189 | */ |
| 2190 | if (req->path != NULL((void*)0) && |
| 2191 | (req->cb != NULL((void*)0) || |
| 2192 | req->fs_type == UV_FS_MKDTEMP || req->fs_type == UV_FS_MKSTEMP)) |
| 2193 | uv__free((void*) req->path); /* Memory is shared with req->new_path. */ |
| 2194 | |
| 2195 | req->path = NULL((void*)0); |
| 2196 | req->new_path = NULL((void*)0); |
| 2197 | |
| 2198 | if (req->fs_type == UV_FS_READDIR && req->ptr != NULL((void*)0)) |
| 2199 | uv__fs_readdir_cleanup(req); |
| 2200 | |
| 2201 | if (req->fs_type == UV_FS_SCANDIR && req->ptr != NULL((void*)0)) |
| 2202 | uv__fs_scandir_cleanup(req); |
| 2203 | |
| 2204 | if (req->bufs != req->bufsml) |
| 2205 | uv__free(req->bufs); |
| 2206 | req->bufs = NULL((void*)0); |
| 2207 | |
| 2208 | if (req->fs_type != UV_FS_OPENDIR && req->ptr != &req->statbuf) |
| 2209 | uv__free(req->ptr); |
| 2210 | req->ptr = NULL((void*)0); |
| 2211 | } |
| 2212 | |
| 2213 | |
| 2214 | int uv_fs_copyfile(uv_loop_t* loop, |
| 2215 | uv_fs_t* req, |
| 2216 | const char* path, |
| 2217 | const char* new_path, |
| 2218 | int flags, |
| 2219 | uv_fs_cb cb) { |
| 2220 | INIT(COPYFILE)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_COPYFILE ; req->result = 0; req->ptr = ((void*)0); req->loop = loop; req->path = ((void*)0); req->new_path = ((void*) 0); req->bufs = ((void*)0); req->cb = cb; } while (0); |
| 2221 | |
| 2222 | if (flags & ~(UV_FS_COPYFILE_EXCL0x0001 | |
| 2223 | UV_FS_COPYFILE_FICLONE0x0002 | |
| 2224 | UV_FS_COPYFILE_FICLONE_FORCE0x0004)) { |
| 2225 | return UV_EINVAL; |
| 2226 | } |
| 2227 | |
| 2228 | PATH2do { if (cb == ((void*)0)) { req->path = path; req->new_path = new_path; } else { size_t path_len; size_t new_path_len; path_len = strlen(path) + 1; new_path_len = strlen(new_path) + 1; req ->path = uv__malloc(path_len + new_path_len); if (req-> path == ((void*)0)) return UV_ENOMEM; req->new_path = req-> path + path_len; memcpy((void*) req->path, path, path_len) ; memcpy((void*) req->new_path, new_path, new_path_len); } } while (0); |
| 2229 | req->flags = flags; |
| 2230 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 2231 | } |
| 2232 | |
| 2233 | |
| 2234 | int uv_fs_statfs(uv_loop_t* loop, |
| 2235 | uv_fs_t* req, |
| 2236 | const char* path, |
| 2237 | uv_fs_cb cb) { |
| 2238 | INIT(STATFS)do { if (req == ((void*)0)) return UV_EINVAL; do { (req)-> type = (UV_FS); } while (0); req->fs_type = UV_FS_STATFS; req ->result = 0; req->ptr = ((void*)0); req->loop = loop ; req->path = ((void*)0); req->new_path = ((void*)0); req ->bufs = ((void*)0); req->cb = cb; } while (0); |
| 2239 | PATHdo { ((void) sizeof ((path != ((void*)0)) ? 1 : 0), __extension__ ({ if (path != ((void*)0)) ; else __assert_fail ("path != NULL" , "../deps/uv/src/unix/fs.c", 2239, __extension__ __PRETTY_FUNCTION__ ); })); if (cb == ((void*)0)) { req->path = path; } else { req->path = uv__strdup(path); if (req->path == ((void* )0)) return UV_ENOMEM; } } while (0); |
| 2240 | POSTdo { if (cb != ((void*)0)) { do { (loop)->active_reqs.count ++; } while (0); uv__work_submit(loop, &req->work_req, UV__WORK_FAST_IO, uv__fs_work, uv__fs_done); return 0; } else { uv__fs_work(&req->work_req); return req->result; } } while (0); |
| 2241 | } |
| 2242 | |
| 2243 | int uv_fs_get_system_error(const uv_fs_t* req) { |
| 2244 | return -req->result; |
| 2245 | } |