| 1 | /* This file contains functions which implement those POSIX and Linux functions |
| 2 | * that MinGW and Microsoft don't provide. The implementations contain just enough |
| 3 | * functionality to support fio. |
| 4 | */ |
| 5 | |
| 6 | #include <arpa/inet.h> |
| 7 | #include <netinet/in.h> |
| 8 | #include <windows.h> |
| 9 | #include <stddef.h> |
| 10 | #include <string.h> |
| 11 | #include <stdlib.h> |
| 12 | #include <unistd.h> |
| 13 | #include <dirent.h> |
| 14 | #include <pthread.h> |
| 15 | #include <time.h> |
| 16 | #include <semaphore.h> |
| 17 | #include <sys/shm.h> |
| 18 | #include <sys/mman.h> |
| 19 | #include <sys/uio.h> |
| 20 | #include <sys/resource.h> |
| 21 | #include <poll.h> |
| 22 | #include <sys/wait.h> |
| 23 | #include <setjmp.h> |
| 24 | |
| 25 | #include "../os-windows.h" |
| 26 | #include "../../lib/hweight.h" |
| 27 | |
| 28 | extern unsigned long mtime_since_now(struct timespec *); |
| 29 | extern void fio_gettime(struct timespec *, void *); |
| 30 | |
| 31 | int win_to_posix_error(DWORD winerr) |
| 32 | { |
| 33 | switch (winerr) { |
| 34 | case ERROR_SUCCESS: |
| 35 | return 0; |
| 36 | case ERROR_FILE_NOT_FOUND: |
| 37 | return ENOENT; |
| 38 | case ERROR_PATH_NOT_FOUND: |
| 39 | return ENOENT; |
| 40 | case ERROR_ACCESS_DENIED: |
| 41 | return EACCES; |
| 42 | case ERROR_INVALID_HANDLE: |
| 43 | return EBADF; |
| 44 | case ERROR_NOT_ENOUGH_MEMORY: |
| 45 | return ENOMEM; |
| 46 | case ERROR_INVALID_DATA: |
| 47 | return EINVAL; |
| 48 | case ERROR_OUTOFMEMORY: |
| 49 | return ENOMEM; |
| 50 | case ERROR_INVALID_DRIVE: |
| 51 | return ENODEV; |
| 52 | case ERROR_NOT_SAME_DEVICE: |
| 53 | return EXDEV; |
| 54 | case ERROR_WRITE_PROTECT: |
| 55 | return EROFS; |
| 56 | case ERROR_BAD_UNIT: |
| 57 | return ENODEV; |
| 58 | case ERROR_NOT_READY: |
| 59 | return EAGAIN; |
| 60 | case ERROR_SHARING_VIOLATION: |
| 61 | return EACCES; |
| 62 | case ERROR_LOCK_VIOLATION: |
| 63 | return EACCES; |
| 64 | case ERROR_SHARING_BUFFER_EXCEEDED: |
| 65 | return ENOLCK; |
| 66 | case ERROR_HANDLE_DISK_FULL: |
| 67 | return ENOSPC; |
| 68 | case ERROR_NOT_SUPPORTED: |
| 69 | return ENOSYS; |
| 70 | case ERROR_FILE_EXISTS: |
| 71 | return EEXIST; |
| 72 | case ERROR_CANNOT_MAKE: |
| 73 | return EPERM; |
| 74 | case ERROR_INVALID_PARAMETER: |
| 75 | return EINVAL; |
| 76 | case ERROR_NO_PROC_SLOTS: |
| 77 | return EAGAIN; |
| 78 | case ERROR_BROKEN_PIPE: |
| 79 | return EPIPE; |
| 80 | case ERROR_OPEN_FAILED: |
| 81 | return EIO; |
| 82 | case ERROR_NO_MORE_SEARCH_HANDLES: |
| 83 | return ENFILE; |
| 84 | case ERROR_CALL_NOT_IMPLEMENTED: |
| 85 | return ENOSYS; |
| 86 | case ERROR_INVALID_NAME: |
| 87 | return ENOENT; |
| 88 | case ERROR_WAIT_NO_CHILDREN: |
| 89 | return ECHILD; |
| 90 | case ERROR_CHILD_NOT_COMPLETE: |
| 91 | return EBUSY; |
| 92 | case ERROR_DIR_NOT_EMPTY: |
| 93 | return ENOTEMPTY; |
| 94 | case ERROR_SIGNAL_REFUSED: |
| 95 | return EIO; |
| 96 | case ERROR_BAD_PATHNAME: |
| 97 | return ENOENT; |
| 98 | case ERROR_SIGNAL_PENDING: |
| 99 | return EBUSY; |
| 100 | case ERROR_MAX_THRDS_REACHED: |
| 101 | return EAGAIN; |
| 102 | case ERROR_BUSY: |
| 103 | return EBUSY; |
| 104 | case ERROR_ALREADY_EXISTS: |
| 105 | return EEXIST; |
| 106 | case ERROR_NO_SIGNAL_SENT: |
| 107 | return EIO; |
| 108 | case ERROR_FILENAME_EXCED_RANGE: |
| 109 | return EINVAL; |
| 110 | case ERROR_META_EXPANSION_TOO_LONG: |
| 111 | return EINVAL; |
| 112 | case ERROR_INVALID_SIGNAL_NUMBER: |
| 113 | return EINVAL; |
| 114 | case ERROR_THREAD_1_INACTIVE: |
| 115 | return EINVAL; |
| 116 | case ERROR_BAD_PIPE: |
| 117 | return EINVAL; |
| 118 | case ERROR_PIPE_BUSY: |
| 119 | return EBUSY; |
| 120 | case ERROR_NO_DATA: |
| 121 | return EPIPE; |
| 122 | case ERROR_MORE_DATA: |
| 123 | return EAGAIN; |
| 124 | case ERROR_DIRECTORY: |
| 125 | return ENOTDIR; |
| 126 | case ERROR_PIPE_CONNECTED: |
| 127 | return EBUSY; |
| 128 | case ERROR_NO_TOKEN: |
| 129 | return EINVAL; |
| 130 | case ERROR_PROCESS_ABORTED: |
| 131 | return EFAULT; |
| 132 | case ERROR_BAD_DEVICE: |
| 133 | return ENODEV; |
| 134 | case ERROR_BAD_USERNAME: |
| 135 | return EINVAL; |
| 136 | case ERROR_OPEN_FILES: |
| 137 | return EAGAIN; |
| 138 | case ERROR_ACTIVE_CONNECTIONS: |
| 139 | return EAGAIN; |
| 140 | case ERROR_DEVICE_IN_USE: |
| 141 | return EBUSY; |
| 142 | case ERROR_INVALID_AT_INTERRUPT_TIME: |
| 143 | return EINTR; |
| 144 | case ERROR_IO_DEVICE: |
| 145 | return EIO; |
| 146 | case ERROR_NOT_OWNER: |
| 147 | return EPERM; |
| 148 | case ERROR_END_OF_MEDIA: |
| 149 | return ENOSPC; |
| 150 | case ERROR_EOM_OVERFLOW: |
| 151 | return ENOSPC; |
| 152 | case ERROR_BEGINNING_OF_MEDIA: |
| 153 | return ESPIPE; |
| 154 | case ERROR_SETMARK_DETECTED: |
| 155 | return ESPIPE; |
| 156 | case ERROR_NO_DATA_DETECTED: |
| 157 | return ENOSPC; |
| 158 | case ERROR_POSSIBLE_DEADLOCK: |
| 159 | return EDEADLOCK; |
| 160 | case ERROR_CRC: |
| 161 | return EIO; |
| 162 | case ERROR_NEGATIVE_SEEK: |
| 163 | return EINVAL; |
| 164 | case ERROR_DISK_FULL: |
| 165 | return ENOSPC; |
| 166 | case ERROR_NOACCESS: |
| 167 | return EFAULT; |
| 168 | case ERROR_FILE_INVALID: |
| 169 | return ENXIO; |
| 170 | default: |
| 171 | log_err("fio: windows error %lu not handled\n", winerr); |
| 172 | return EIO; |
| 173 | } |
| 174 | |
| 175 | return winerr; |
| 176 | } |
| 177 | |
| 178 | int GetNumLogicalProcessors(void) |
| 179 | { |
| 180 | SYSTEM_LOGICAL_PROCESSOR_INFORMATION *processor_info = NULL; |
| 181 | DWORD len = 0; |
| 182 | DWORD num_processors = 0; |
| 183 | DWORD error = 0; |
| 184 | DWORD i; |
| 185 | |
| 186 | while (!GetLogicalProcessorInformation(processor_info, &len)) { |
| 187 | error = GetLastError(); |
| 188 | if (error == ERROR_INSUFFICIENT_BUFFER) |
| 189 | processor_info = malloc(len); |
| 190 | else { |
| 191 | log_err("Error: GetLogicalProcessorInformation failed: %lu\n", |
| 192 | error); |
| 193 | return -1; |
| 194 | } |
| 195 | |
| 196 | if (processor_info == NULL) { |
| 197 | log_err("Error: failed to allocate memory for GetLogicalProcessorInformation"); |
| 198 | return -1; |
| 199 | } |
| 200 | } |
| 201 | |
| 202 | for (i = 0; i < len / sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION); i++) { |
| 203 | if (processor_info[i].Relationship == RelationProcessorCore) |
| 204 | num_processors += hweight64(processor_info[i].ProcessorMask); |
| 205 | } |
| 206 | |
| 207 | free(processor_info); |
| 208 | return num_processors; |
| 209 | } |
| 210 | |
| 211 | long sysconf(int name) |
| 212 | { |
| 213 | long val = -1; |
| 214 | long val2 = -1; |
| 215 | SYSTEM_INFO sysInfo; |
| 216 | MEMORYSTATUSEX status; |
| 217 | |
| 218 | switch (name) { |
| 219 | case _SC_NPROCESSORS_CONF: |
| 220 | /* |
| 221 | * Using GetMaximumProcessorCount introduces a problem in |
| 222 | * gettime.c because Windows does not have |
| 223 | * fio_get_thread_affinity. Log sample (see #1479): |
| 224 | * |
| 225 | * CPU mask contains processor beyond last active processor index (2) |
| 226 | * clock setaffinity failed: No error |
| 227 | */ |
| 228 | val = GetActiveProcessorCount(ALL_PROCESSOR_GROUPS); |
| 229 | if (val == -1) |
| 230 | log_err("sysconf(_SC_NPROCESSORS_CONF) failed\n"); |
| 231 | |
| 232 | break; |
| 233 | |
| 234 | case _SC_PAGESIZE: |
| 235 | GetSystemInfo(&sysInfo); |
| 236 | val = sysInfo.dwPageSize; |
| 237 | break; |
| 238 | |
| 239 | case _SC_PHYS_PAGES: |
| 240 | status.dwLength = sizeof(status); |
| 241 | val2 = sysconf(_SC_PAGESIZE); |
| 242 | if (GlobalMemoryStatusEx(&status) && val2 != -1) |
| 243 | val = status.ullTotalPhys / val2; |
| 244 | else |
| 245 | log_err("sysconf(_SC_PHYS_PAGES) failed\n"); |
| 246 | break; |
| 247 | default: |
| 248 | log_err("sysconf(%d) is not implemented\n", name); |
| 249 | break; |
| 250 | } |
| 251 | |
| 252 | return val; |
| 253 | } |
| 254 | |
| 255 | char *dl_error = NULL; |
| 256 | |
| 257 | int dlclose(void *handle) |
| 258 | { |
| 259 | return !FreeLibrary((HMODULE)handle); |
| 260 | } |
| 261 | |
| 262 | void *dlopen(const char *file, int mode) |
| 263 | { |
| 264 | HMODULE hMod; |
| 265 | |
| 266 | hMod = LoadLibrary(file); |
| 267 | if (hMod == INVALID_HANDLE_VALUE) |
| 268 | dl_error = (char*)"LoadLibrary failed"; |
| 269 | else |
| 270 | dl_error = NULL; |
| 271 | |
| 272 | return hMod; |
| 273 | } |
| 274 | |
| 275 | void *dlsym(void *handle, const char *name) |
| 276 | { |
| 277 | FARPROC fnPtr; |
| 278 | |
| 279 | fnPtr = GetProcAddress((HMODULE)handle, name); |
| 280 | if (fnPtr == NULL) |
| 281 | dl_error = (char*)"GetProcAddress failed"; |
| 282 | else |
| 283 | dl_error = NULL; |
| 284 | |
| 285 | return fnPtr; |
| 286 | } |
| 287 | |
| 288 | char *dlerror(void) |
| 289 | { |
| 290 | return dl_error; |
| 291 | } |
| 292 | |
| 293 | /* Copied from http://blogs.msdn.com/b/joshpoley/archive/2007/12/19/date-time-formats-and-conversions.aspx */ |
| 294 | void Time_tToSystemTime(time_t dosTime, SYSTEMTIME *systemTime) |
| 295 | { |
| 296 | FILETIME utcFT; |
| 297 | LONGLONG jan1970; |
| 298 | SYSTEMTIME tempSystemTime; |
| 299 | |
| 300 | jan1970 = Int32x32To64(dosTime, 10000000) + 116444736000000000; |
| 301 | utcFT.dwLowDateTime = (DWORD)jan1970; |
| 302 | utcFT.dwHighDateTime = jan1970 >> 32; |
| 303 | |
| 304 | FileTimeToSystemTime((FILETIME*)&utcFT, &tempSystemTime); |
| 305 | SystemTimeToTzSpecificLocalTime(NULL, &tempSystemTime, systemTime); |
| 306 | } |
| 307 | |
| 308 | char *ctime_r(const time_t *t, char *buf) |
| 309 | { |
| 310 | SYSTEMTIME systime; |
| 311 | const char * const dayOfWeek[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" }; |
| 312 | const char * const monthOfYear[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" }; |
| 313 | |
| 314 | Time_tToSystemTime(*t, &systime); |
| 315 | |
| 316 | /* |
| 317 | * We don't know how long `buf` is, but assume it's rounded up from |
| 318 | * the minimum of 25 to 32 |
| 319 | */ |
| 320 | snprintf(buf, 32, "%s %s %d %02d:%02d:%02d %04d\n", |
| 321 | dayOfWeek[systime.wDayOfWeek % 7], |
| 322 | monthOfYear[(systime.wMonth - 1) % 12], |
| 323 | systime.wDay, systime.wHour, systime.wMinute, |
| 324 | systime.wSecond, systime.wYear); |
| 325 | return buf; |
| 326 | } |
| 327 | |
| 328 | int gettimeofday(struct timeval *restrict tp, void *restrict tzp) |
| 329 | { |
| 330 | FILETIME fileTime; |
| 331 | uint64_t unix_time, windows_time; |
| 332 | const uint64_t MILLISECONDS_BETWEEN_1601_AND_1970 = 11644473600000; |
| 333 | |
| 334 | /* Ignore the timezone parameter */ |
| 335 | (void)tzp; |
| 336 | |
| 337 | /* |
| 338 | * Windows time is stored as the number 100 ns intervals since January 1 1601. |
| 339 | * Conversion details from http://www.informit.com/articles/article.aspx?p=102236&seqNum=3 |
| 340 | * Its precision is 100 ns but accuracy is only one clock tick, or normally around 15 ms. |
| 341 | */ |
| 342 | GetSystemTimeAsFileTime(&fileTime); |
| 343 | windows_time = ((uint64_t)fileTime.dwHighDateTime << 32) + fileTime.dwLowDateTime; |
| 344 | /* Divide by 10,000 to convert to ms and subtract the time between 1601 and 1970 */ |
| 345 | unix_time = (((windows_time)/10000) - MILLISECONDS_BETWEEN_1601_AND_1970); |
| 346 | /* unix_time is now the number of milliseconds since 1970 (the Unix epoch) */ |
| 347 | tp->tv_sec = unix_time / 1000; |
| 348 | tp->tv_usec = (unix_time % 1000) * 1000; |
| 349 | return 0; |
| 350 | } |
| 351 | |
| 352 | int sigaction(int sig, const struct sigaction *act, struct sigaction *oact) |
| 353 | { |
| 354 | int rc = 0; |
| 355 | void (*prev_handler)(int); |
| 356 | |
| 357 | prev_handler = signal(sig, act->sa_handler); |
| 358 | if (oact != NULL) |
| 359 | oact->sa_handler = prev_handler; |
| 360 | |
| 361 | if (prev_handler == SIG_ERR) |
| 362 | rc = -1; |
| 363 | |
| 364 | return rc; |
| 365 | } |
| 366 | |
| 367 | int lstat(const char *path, struct stat *buf) |
| 368 | { |
| 369 | return stat(path, buf); |
| 370 | } |
| 371 | |
| 372 | void *mmap(void *addr, size_t len, int prot, int flags, int fildes, off_t off) |
| 373 | { |
| 374 | DWORD vaProt = 0; |
| 375 | DWORD mapAccess = 0; |
| 376 | DWORD lenlow; |
| 377 | DWORD lenhigh; |
| 378 | HANDLE hMap; |
| 379 | void* allocAddr = NULL; |
| 380 | |
| 381 | if (prot & PROT_NONE) |
| 382 | vaProt |= PAGE_NOACCESS; |
| 383 | |
| 384 | if ((prot & PROT_READ) && !(prot & PROT_WRITE)) { |
| 385 | vaProt |= PAGE_READONLY; |
| 386 | mapAccess = FILE_MAP_READ; |
| 387 | } |
| 388 | |
| 389 | if (prot & PROT_WRITE) { |
| 390 | vaProt |= PAGE_READWRITE; |
| 391 | mapAccess |= FILE_MAP_WRITE; |
| 392 | } |
| 393 | |
| 394 | lenlow = len & 0xFFFF; |
| 395 | lenhigh = len >> 16; |
| 396 | /* If the low DWORD is zero and the high DWORD is non-zero, `CreateFileMapping` |
| 397 | will return ERROR_INVALID_PARAMETER. To avoid this, set both to zero. */ |
| 398 | if (lenlow == 0) |
| 399 | lenhigh = 0; |
| 400 | |
| 401 | if (flags & MAP_ANON || flags & MAP_ANONYMOUS) { |
| 402 | allocAddr = VirtualAlloc(addr, len, MEM_COMMIT, vaProt); |
| 403 | if (allocAddr == NULL) |
| 404 | errno = win_to_posix_error(GetLastError()); |
| 405 | } else { |
| 406 | hMap = CreateFileMapping((HANDLE)_get_osfhandle(fildes), NULL, |
| 407 | vaProt, lenhigh, lenlow, NULL); |
| 408 | |
| 409 | if (hMap != NULL) |
| 410 | allocAddr = MapViewOfFile(hMap, mapAccess, off >> 16, |
| 411 | off & 0xFFFF, len); |
| 412 | if (hMap == NULL || allocAddr == NULL) |
| 413 | errno = win_to_posix_error(GetLastError()); |
| 414 | |
| 415 | } |
| 416 | |
| 417 | return allocAddr; |
| 418 | } |
| 419 | |
| 420 | int munmap(void *addr, size_t len) |
| 421 | { |
| 422 | BOOL success; |
| 423 | |
| 424 | /* We may have allocated the memory with either MapViewOfFile or |
| 425 | VirtualAlloc. Therefore, try calling UnmapViewOfFile first, and if that |
| 426 | fails, call VirtualFree. */ |
| 427 | success = UnmapViewOfFile(addr); |
| 428 | |
| 429 | if (!success) |
| 430 | success = VirtualFree(addr, 0, MEM_RELEASE); |
| 431 | |
| 432 | return !success; |
| 433 | } |
| 434 | |
| 435 | int msync(void *addr, size_t len, int flags) |
| 436 | { |
| 437 | return !FlushViewOfFile(addr, len); |
| 438 | } |
| 439 | |
| 440 | int fork(void) |
| 441 | { |
| 442 | log_err("%s is not implemented\n", __func__); |
| 443 | errno = ENOSYS; |
| 444 | return -1; |
| 445 | } |
| 446 | |
| 447 | pid_t setsid(void) |
| 448 | { |
| 449 | log_err("%s is not implemented\n", __func__); |
| 450 | errno = ENOSYS; |
| 451 | return -1; |
| 452 | } |
| 453 | |
| 454 | static HANDLE log_file = INVALID_HANDLE_VALUE; |
| 455 | |
| 456 | void openlog(const char *ident, int logopt, int facility) |
| 457 | { |
| 458 | if (log_file != INVALID_HANDLE_VALUE) |
| 459 | return; |
| 460 | |
| 461 | log_file = CreateFileA("syslog.txt", GENERIC_WRITE, |
| 462 | FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, |
| 463 | OPEN_ALWAYS, 0, NULL); |
| 464 | } |
| 465 | |
| 466 | void closelog(void) |
| 467 | { |
| 468 | CloseHandle(log_file); |
| 469 | log_file = INVALID_HANDLE_VALUE; |
| 470 | } |
| 471 | |
| 472 | void syslog(int priority, const char *message, ... /* argument */) |
| 473 | { |
| 474 | va_list v; |
| 475 | int len; |
| 476 | char *output; |
| 477 | DWORD bytes_written; |
| 478 | |
| 479 | if (log_file == INVALID_HANDLE_VALUE) { |
| 480 | log_file = CreateFileA("syslog.txt", GENERIC_WRITE, |
| 481 | FILE_SHARE_READ | FILE_SHARE_WRITE, |
| 482 | NULL, OPEN_ALWAYS, 0, NULL); |
| 483 | } |
| 484 | |
| 485 | if (log_file == INVALID_HANDLE_VALUE) { |
| 486 | log_err("syslog: failed to open log file\n"); |
| 487 | return; |
| 488 | } |
| 489 | |
| 490 | va_start(v, message); |
| 491 | len = _vscprintf(message, v); |
| 492 | output = malloc(len + sizeof(char)); |
| 493 | vsprintf(output, message, v); |
| 494 | WriteFile(log_file, output, len, &bytes_written, NULL); |
| 495 | va_end(v); |
| 496 | free(output); |
| 497 | } |
| 498 | |
| 499 | int kill(pid_t pid, int sig) |
| 500 | { |
| 501 | errno = ESRCH; |
| 502 | return -1; |
| 503 | } |
| 504 | |
| 505 | /* |
| 506 | * This is assumed to be used only by the network code, |
| 507 | * and so doesn't try and handle any of the other cases |
| 508 | */ |
| 509 | int fcntl(int fildes, int cmd, ...) |
| 510 | { |
| 511 | /* |
| 512 | * non-blocking mode doesn't work the same as in BSD sockets, |
| 513 | * so ignore it. |
| 514 | */ |
| 515 | #if 0 |
| 516 | va_list ap; |
| 517 | int val, opt, status; |
| 518 | |
| 519 | if (cmd == F_GETFL) |
| 520 | return 0; |
| 521 | else if (cmd != F_SETFL) { |
| 522 | errno = EINVAL; |
| 523 | return -1; |
| 524 | } |
| 525 | |
| 526 | va_start(ap, 1); |
| 527 | |
| 528 | opt = va_arg(ap, int); |
| 529 | if (opt & O_NONBLOCK) |
| 530 | val = 1; |
| 531 | else |
| 532 | val = 0; |
| 533 | |
| 534 | status = ioctlsocket((SOCKET)fildes, opt, &val); |
| 535 | |
| 536 | if (status == SOCKET_ERROR) { |
| 537 | errno = EINVAL; |
| 538 | val = -1; |
| 539 | } |
| 540 | |
| 541 | va_end(ap); |
| 542 | |
| 543 | return val; |
| 544 | #endif |
| 545 | return 0; |
| 546 | } |
| 547 | |
| 548 | #ifndef CLOCK_MONOTONIC_RAW |
| 549 | #define CLOCK_MONOTONIC_RAW 4 |
| 550 | #endif |
| 551 | |
| 552 | /* |
| 553 | * Get the value of a local clock source. |
| 554 | * This implementation supports 3 clocks: CLOCK_MONOTONIC/CLOCK_MONOTONIC_RAW |
| 555 | * provide high-accuracy relative time, while CLOCK_REALTIME provides a |
| 556 | * low-accuracy wall time. |
| 557 | */ |
| 558 | int clock_gettime(clockid_t clock_id, struct timespec *tp) |
| 559 | { |
| 560 | int rc = 0; |
| 561 | |
| 562 | if (clock_id == CLOCK_MONOTONIC || clock_id == CLOCK_MONOTONIC_RAW) { |
| 563 | static LARGE_INTEGER freq = {{0,0}}; |
| 564 | LARGE_INTEGER counts; |
| 565 | uint64_t t; |
| 566 | |
| 567 | QueryPerformanceCounter(&counts); |
| 568 | if (freq.QuadPart == 0) |
| 569 | QueryPerformanceFrequency(&freq); |
| 570 | |
| 571 | tp->tv_sec = counts.QuadPart / freq.QuadPart; |
| 572 | /* Get the difference between the number of ns stored |
| 573 | * in 'tv_sec' and that stored in 'counts' */ |
| 574 | t = tp->tv_sec * freq.QuadPart; |
| 575 | t = counts.QuadPart - t; |
| 576 | /* 't' now contains the number of cycles since the last second. |
| 577 | * We want the number of nanoseconds, so multiply out by 1,000,000,000 |
| 578 | * and then divide by the frequency. */ |
| 579 | t *= 1000000000; |
| 580 | tp->tv_nsec = t / freq.QuadPart; |
| 581 | } else if (clock_id == CLOCK_REALTIME) { |
| 582 | /* clock_gettime(CLOCK_REALTIME,...) is just an alias for gettimeofday with a |
| 583 | * higher-precision field. */ |
| 584 | struct timeval tv; |
| 585 | gettimeofday(&tv, NULL); |
| 586 | tp->tv_sec = tv.tv_sec; |
| 587 | tp->tv_nsec = tv.tv_usec * 1000; |
| 588 | } else { |
| 589 | errno = EINVAL; |
| 590 | rc = -1; |
| 591 | } |
| 592 | |
| 593 | return rc; |
| 594 | } |
| 595 | |
| 596 | int mlock(const void * addr, size_t len) |
| 597 | { |
| 598 | SIZE_T min, max; |
| 599 | BOOL success; |
| 600 | HANDLE process = GetCurrentProcess(); |
| 601 | |
| 602 | success = GetProcessWorkingSetSize(process, &min, &max); |
| 603 | if (!success) { |
| 604 | errno = win_to_posix_error(GetLastError()); |
| 605 | return -1; |
| 606 | } |
| 607 | |
| 608 | min += len; |
| 609 | max += len; |
| 610 | success = SetProcessWorkingSetSize(process, min, max); |
| 611 | if (!success) { |
| 612 | errno = win_to_posix_error(GetLastError()); |
| 613 | return -1; |
| 614 | } |
| 615 | |
| 616 | success = VirtualLock((LPVOID)addr, len); |
| 617 | if (!success) { |
| 618 | errno = win_to_posix_error(GetLastError()); |
| 619 | return -1; |
| 620 | } |
| 621 | |
| 622 | return 0; |
| 623 | } |
| 624 | |
| 625 | int munlock(const void * addr, size_t len) |
| 626 | { |
| 627 | BOOL success = VirtualUnlock((LPVOID)addr, len); |
| 628 | |
| 629 | if (!success) { |
| 630 | errno = win_to_posix_error(GetLastError()); |
| 631 | return -1; |
| 632 | } |
| 633 | |
| 634 | return 0; |
| 635 | } |
| 636 | |
| 637 | pid_t waitpid(pid_t pid, int *stat_loc, int options) |
| 638 | { |
| 639 | log_err("%s is not implemented\n", __func__); |
| 640 | errno = ENOSYS; |
| 641 | return -1; |
| 642 | } |
| 643 | |
| 644 | int usleep(useconds_t useconds) |
| 645 | { |
| 646 | Sleep(useconds / 1000); |
| 647 | return 0; |
| 648 | } |
| 649 | |
| 650 | char *basename(char *path) |
| 651 | { |
| 652 | static char name[MAX_PATH]; |
| 653 | int i; |
| 654 | |
| 655 | if (path == NULL || strlen(path) == 0) |
| 656 | return (char*)"."; |
| 657 | |
| 658 | i = strlen(path) - 1; |
| 659 | |
| 660 | while (path[i] != '\\' && path[i] != '/' && i >= 0) |
| 661 | i--; |
| 662 | |
| 663 | name[MAX_PATH - 1] = '\0'; |
| 664 | strncpy(name, path + i + 1, MAX_PATH - 1); |
| 665 | |
| 666 | return name; |
| 667 | } |
| 668 | |
| 669 | int fsync(int fildes) |
| 670 | { |
| 671 | HANDLE hFile = (HANDLE)_get_osfhandle(fildes); |
| 672 | if (!FlushFileBuffers(hFile)) { |
| 673 | errno = win_to_posix_error(GetLastError()); |
| 674 | return -1; |
| 675 | } |
| 676 | |
| 677 | return 0; |
| 678 | } |
| 679 | |
| 680 | int nFileMappings = 0; |
| 681 | HANDLE fileMappings[1024]; |
| 682 | |
| 683 | int shmget(key_t key, size_t size, int shmflg) |
| 684 | { |
| 685 | int mapid = -1; |
| 686 | uint32_t size_low = size & 0xFFFFFFFF; |
| 687 | uint32_t size_high = ((uint64_t)size) >> 32; |
| 688 | HANDLE hMapping; |
| 689 | |
| 690 | hMapping = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, |
| 691 | PAGE_EXECUTE_READWRITE | SEC_RESERVE, |
| 692 | size_high, size_low, NULL); |
| 693 | if (hMapping != NULL) { |
| 694 | fileMappings[nFileMappings] = hMapping; |
| 695 | mapid = nFileMappings; |
| 696 | nFileMappings++; |
| 697 | } else |
| 698 | errno = ENOSYS; |
| 699 | |
| 700 | return mapid; |
| 701 | } |
| 702 | |
| 703 | void *shmat(int shmid, const void *shmaddr, int shmflg) |
| 704 | { |
| 705 | void *mapAddr; |
| 706 | MEMORY_BASIC_INFORMATION memInfo; |
| 707 | |
| 708 | mapAddr = MapViewOfFile(fileMappings[shmid], FILE_MAP_ALL_ACCESS, 0, 0, 0); |
| 709 | if (mapAddr == NULL) { |
| 710 | errno = win_to_posix_error(GetLastError()); |
| 711 | return (void*)-1; |
| 712 | } |
| 713 | |
| 714 | if (VirtualQuery(mapAddr, &memInfo, sizeof(memInfo)) == 0) { |
| 715 | errno = win_to_posix_error(GetLastError()); |
| 716 | return (void*)-1; |
| 717 | } |
| 718 | |
| 719 | mapAddr = VirtualAlloc(mapAddr, memInfo.RegionSize, MEM_COMMIT, PAGE_READWRITE); |
| 720 | if (mapAddr == NULL) { |
| 721 | errno = win_to_posix_error(GetLastError()); |
| 722 | return (void*)-1; |
| 723 | } |
| 724 | |
| 725 | return mapAddr; |
| 726 | } |
| 727 | |
| 728 | int shmdt(const void *shmaddr) |
| 729 | { |
| 730 | if (!UnmapViewOfFile(shmaddr)) { |
| 731 | errno = win_to_posix_error(GetLastError()); |
| 732 | return -1; |
| 733 | } |
| 734 | |
| 735 | return 0; |
| 736 | } |
| 737 | |
| 738 | int shmctl(int shmid, int cmd, struct shmid_ds *buf) |
| 739 | { |
| 740 | if (cmd == IPC_RMID) { |
| 741 | fileMappings[shmid] = INVALID_HANDLE_VALUE; |
| 742 | return 0; |
| 743 | } |
| 744 | |
| 745 | log_err("%s is not implemented\n", __func__); |
| 746 | errno = ENOSYS; |
| 747 | return -1; |
| 748 | } |
| 749 | |
| 750 | int setuid(uid_t uid) |
| 751 | { |
| 752 | log_err("%s is not implemented\n", __func__); |
| 753 | errno = ENOSYS; |
| 754 | return -1; |
| 755 | } |
| 756 | |
| 757 | int setgid(gid_t gid) |
| 758 | { |
| 759 | log_err("%s is not implemented\n", __func__); |
| 760 | errno = ENOSYS; |
| 761 | return -1; |
| 762 | } |
| 763 | |
| 764 | int nice(int incr) |
| 765 | { |
| 766 | DWORD prioclass = NORMAL_PRIORITY_CLASS; |
| 767 | |
| 768 | if (incr < -15) |
| 769 | prioclass = HIGH_PRIORITY_CLASS; |
| 770 | else if (incr < 0) |
| 771 | prioclass = ABOVE_NORMAL_PRIORITY_CLASS; |
| 772 | else if (incr > 15) |
| 773 | prioclass = IDLE_PRIORITY_CLASS; |
| 774 | else if (incr > 0) |
| 775 | prioclass = BELOW_NORMAL_PRIORITY_CLASS; |
| 776 | |
| 777 | if (!SetPriorityClass(GetCurrentProcess(), prioclass)) |
| 778 | log_err("fio: SetPriorityClass failed\n"); |
| 779 | |
| 780 | return 0; |
| 781 | } |
| 782 | |
| 783 | int getrusage(int who, struct rusage *r_usage) |
| 784 | { |
| 785 | const uint64_t SECONDS_BETWEEN_1601_AND_1970 = 11644473600; |
| 786 | FILETIME cTime, eTime, kTime, uTime; |
| 787 | time_t time; |
| 788 | HANDLE h; |
| 789 | |
| 790 | memset(r_usage, 0, sizeof(*r_usage)); |
| 791 | |
| 792 | if (who == RUSAGE_SELF) { |
| 793 | h = GetCurrentProcess(); |
| 794 | GetProcessTimes(h, &cTime, &eTime, &kTime, &uTime); |
| 795 | } else if (who == RUSAGE_THREAD) { |
| 796 | h = GetCurrentThread(); |
| 797 | GetThreadTimes(h, &cTime, &eTime, &kTime, &uTime); |
| 798 | } else { |
| 799 | log_err("fio: getrusage %d is not implemented\n", who); |
| 800 | return -1; |
| 801 | } |
| 802 | |
| 803 | time = ((uint64_t)uTime.dwHighDateTime << 32) + uTime.dwLowDateTime; |
| 804 | /* Divide by 10,000,000 to get the number of seconds and move the epoch from |
| 805 | * 1601 to 1970 */ |
| 806 | time = (time_t)(((time)/10000000) - SECONDS_BETWEEN_1601_AND_1970); |
| 807 | r_usage->ru_utime.tv_sec = time; |
| 808 | /* getrusage() doesn't care about anything other than seconds, so set tv_usec to 0 */ |
| 809 | r_usage->ru_utime.tv_usec = 0; |
| 810 | time = ((uint64_t)kTime.dwHighDateTime << 32) + kTime.dwLowDateTime; |
| 811 | /* Divide by 10,000,000 to get the number of seconds and move the epoch from |
| 812 | * 1601 to 1970 */ |
| 813 | time = (time_t)(((time)/10000000) - SECONDS_BETWEEN_1601_AND_1970); |
| 814 | r_usage->ru_stime.tv_sec = time; |
| 815 | r_usage->ru_stime.tv_usec = 0; |
| 816 | return 0; |
| 817 | } |
| 818 | |
| 819 | int posix_madvise(void *addr, size_t len, int advice) |
| 820 | { |
| 821 | return ENOSYS; |
| 822 | } |
| 823 | |
| 824 | int fdatasync(int fildes) |
| 825 | { |
| 826 | return fsync(fildes); |
| 827 | } |
| 828 | |
| 829 | ssize_t pwrite(int fildes, const void *buf, size_t nbyte, |
| 830 | off_t offset) |
| 831 | { |
| 832 | int64_t pos = _telli64(fildes); |
| 833 | ssize_t len = _write(fildes, buf, nbyte); |
| 834 | |
| 835 | _lseeki64(fildes, pos, SEEK_SET); |
| 836 | return len; |
| 837 | } |
| 838 | |
| 839 | ssize_t pread(int fildes, void *buf, size_t nbyte, off_t offset) |
| 840 | { |
| 841 | int64_t pos = _telli64(fildes); |
| 842 | ssize_t len = read(fildes, buf, nbyte); |
| 843 | |
| 844 | _lseeki64(fildes, pos, SEEK_SET); |
| 845 | return len; |
| 846 | } |
| 847 | |
| 848 | ssize_t readv(int fildes, const struct iovec *iov, int iovcnt) |
| 849 | { |
| 850 | log_err("%s is not implemented\n", __func__); |
| 851 | errno = ENOSYS; |
| 852 | return -1; |
| 853 | } |
| 854 | |
| 855 | ssize_t writev(int fildes, const struct iovec *iov, int iovcnt) |
| 856 | { |
| 857 | int i; |
| 858 | DWORD bytes_written = 0; |
| 859 | |
| 860 | for (i = 0; i < iovcnt; i++) { |
| 861 | int len; |
| 862 | |
| 863 | len = send((SOCKET)fildes, iov[i].iov_base, iov[i].iov_len, 0); |
| 864 | if (len == SOCKET_ERROR) { |
| 865 | DWORD err = GetLastError(); |
| 866 | errno = win_to_posix_error(err); |
| 867 | bytes_written = -1; |
| 868 | break; |
| 869 | } |
| 870 | bytes_written += len; |
| 871 | } |
| 872 | |
| 873 | return bytes_written; |
| 874 | } |
| 875 | |
| 876 | long long strtoll(const char *restrict str, char **restrict endptr, int base) |
| 877 | { |
| 878 | return _strtoi64(str, endptr, base); |
| 879 | } |
| 880 | |
| 881 | int poll(struct pollfd fds[], nfds_t nfds, int timeout) |
| 882 | { |
| 883 | struct timeval tv; |
| 884 | struct timeval *to = NULL; |
| 885 | fd_set readfds, writefds, exceptfds; |
| 886 | int i; |
| 887 | int rc; |
| 888 | |
| 889 | if (timeout != -1) { |
| 890 | to = &tv; |
| 891 | to->tv_sec = timeout / 1000; |
| 892 | to->tv_usec = (timeout % 1000) * 1000; |
| 893 | } |
| 894 | |
| 895 | FD_ZERO(&readfds); |
| 896 | FD_ZERO(&writefds); |
| 897 | FD_ZERO(&exceptfds); |
| 898 | |
| 899 | for (i = 0; i < nfds; i++) { |
| 900 | if (fds[i].fd == INVALID_SOCKET) { |
| 901 | fds[i].revents = 0; |
| 902 | continue; |
| 903 | } |
| 904 | |
| 905 | if (fds[i].events & POLLIN) |
| 906 | FD_SET(fds[i].fd, &readfds); |
| 907 | |
| 908 | if (fds[i].events & POLLOUT) |
| 909 | FD_SET(fds[i].fd, &writefds); |
| 910 | |
| 911 | FD_SET(fds[i].fd, &exceptfds); |
| 912 | } |
| 913 | rc = select(nfds, &readfds, &writefds, &exceptfds, to); |
| 914 | |
| 915 | if (rc != SOCKET_ERROR) { |
| 916 | for (i = 0; i < nfds; i++) { |
| 917 | if (fds[i].fd == INVALID_SOCKET) |
| 918 | continue; |
| 919 | |
| 920 | if ((fds[i].events & POLLIN) && FD_ISSET(fds[i].fd, &readfds)) |
| 921 | fds[i].revents |= POLLIN; |
| 922 | |
| 923 | if ((fds[i].events & POLLOUT) && FD_ISSET(fds[i].fd, &writefds)) |
| 924 | fds[i].revents |= POLLOUT; |
| 925 | |
| 926 | if (FD_ISSET(fds[i].fd, &exceptfds)) |
| 927 | fds[i].revents |= POLLHUP; |
| 928 | } |
| 929 | } |
| 930 | return rc; |
| 931 | } |
| 932 | |
| 933 | int nanosleep(const struct timespec *rqtp, struct timespec *rmtp) |
| 934 | { |
| 935 | struct timespec tv; |
| 936 | DWORD ms_remaining; |
| 937 | DWORD ms_total = (rqtp->tv_sec * 1000) + (rqtp->tv_nsec / 1000000.0); |
| 938 | |
| 939 | if (ms_total == 0) |
| 940 | ms_total = 1; |
| 941 | |
| 942 | ms_remaining = ms_total; |
| 943 | |
| 944 | /* Since Sleep() can sleep for less than the requested time, add a loop to |
| 945 | ensure we only return after the requested length of time has elapsed */ |
| 946 | do { |
| 947 | fio_gettime(&tv, NULL); |
| 948 | Sleep(ms_remaining); |
| 949 | ms_remaining = ms_total - mtime_since_now(&tv); |
| 950 | } while (ms_remaining > 0 && ms_remaining < ms_total); |
| 951 | |
| 952 | /* this implementation will never sleep for less than the requested time */ |
| 953 | if (rmtp != NULL) { |
| 954 | rmtp->tv_sec = 0; |
| 955 | rmtp->tv_nsec = 0; |
| 956 | } |
| 957 | |
| 958 | return 0; |
| 959 | } |
| 960 | |
| 961 | DIR *opendir(const char *dirname) |
| 962 | { |
| 963 | struct dirent_ctx *dc = NULL; |
| 964 | HANDLE file; |
| 965 | |
| 966 | /* See if we can open it. If not, we'll return an error here */ |
| 967 | file = CreateFileA(dirname, 0, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, |
| 968 | OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL); |
| 969 | if (file != INVALID_HANDLE_VALUE) { |
| 970 | CloseHandle(file); |
| 971 | dc = malloc(sizeof(struct dirent_ctx)); |
| 972 | snprintf(dc->dirname, sizeof(dc->dirname), "%s", dirname); |
| 973 | dc->find_handle = INVALID_HANDLE_VALUE; |
| 974 | } else { |
| 975 | DWORD error = GetLastError(); |
| 976 | if (error == ERROR_FILE_NOT_FOUND) |
| 977 | errno = ENOENT; |
| 978 | |
| 979 | else if (error == ERROR_PATH_NOT_FOUND) |
| 980 | errno = ENOTDIR; |
| 981 | else if (error == ERROR_TOO_MANY_OPEN_FILES) |
| 982 | errno = ENFILE; |
| 983 | else if (error == ERROR_ACCESS_DENIED) |
| 984 | errno = EACCES; |
| 985 | else |
| 986 | errno = error; |
| 987 | } |
| 988 | |
| 989 | return dc; |
| 990 | } |
| 991 | |
| 992 | int closedir(DIR *dirp) |
| 993 | { |
| 994 | if (dirp != NULL && dirp->find_handle != INVALID_HANDLE_VALUE) |
| 995 | FindClose(dirp->find_handle); |
| 996 | |
| 997 | free(dirp); |
| 998 | return 0; |
| 999 | } |
| 1000 | |
| 1001 | struct dirent *readdir(DIR *dirp) |
| 1002 | { |
| 1003 | static struct dirent de; |
| 1004 | WIN32_FIND_DATA find_data; |
| 1005 | |
| 1006 | if (dirp == NULL) |
| 1007 | return NULL; |
| 1008 | |
| 1009 | if (dirp->find_handle == INVALID_HANDLE_VALUE) { |
| 1010 | char search_pattern[MAX_PATH]; |
| 1011 | |
| 1012 | snprintf(search_pattern, sizeof(search_pattern), "%s\\*", |
| 1013 | dirp->dirname); |
| 1014 | dirp->find_handle = FindFirstFileA(search_pattern, &find_data); |
| 1015 | if (dirp->find_handle == INVALID_HANDLE_VALUE) |
| 1016 | return NULL; |
| 1017 | } else { |
| 1018 | if (!FindNextFile(dirp->find_handle, &find_data)) |
| 1019 | return NULL; |
| 1020 | } |
| 1021 | |
| 1022 | snprintf(de.d_name, sizeof(de.d_name), find_data.cFileName); |
| 1023 | de.d_ino = 0; |
| 1024 | |
| 1025 | return &de; |
| 1026 | } |
| 1027 | |
| 1028 | uid_t geteuid(void) |
| 1029 | { |
| 1030 | log_err("%s is not implemented\n", __func__); |
| 1031 | errno = ENOSYS; |
| 1032 | return -1; |
| 1033 | } |
| 1034 | |
| 1035 | in_addr_t inet_network(const char *cp) |
| 1036 | { |
| 1037 | in_addr_t hbo; |
| 1038 | in_addr_t nbo = inet_addr(cp); |
| 1039 | hbo = ((nbo & 0xFF) << 24) + ((nbo & 0xFF00) << 8) + ((nbo & 0xFF0000) >> 8) + ((nbo & 0xFF000000) >> 24); |
| 1040 | return hbo; |
| 1041 | } |
| 1042 | |
| 1043 | static HANDLE create_named_pipe(char *pipe_name, int wait_connect_time) |
| 1044 | { |
| 1045 | HANDLE hpipe; |
| 1046 | |
| 1047 | hpipe = CreateNamedPipe ( |
| 1048 | pipe_name, |
| 1049 | PIPE_ACCESS_DUPLEX, |
| 1050 | PIPE_WAIT | PIPE_TYPE_BYTE, |
| 1051 | 1, 0, 0, wait_connect_time, NULL); |
| 1052 | |
| 1053 | if (hpipe == INVALID_HANDLE_VALUE) { |
| 1054 | log_err("ConnectNamedPipe failed (%lu).\n", GetLastError()); |
| 1055 | return INVALID_HANDLE_VALUE; |
| 1056 | } |
| 1057 | |
| 1058 | if (!ConnectNamedPipe(hpipe, NULL)) { |
| 1059 | log_err("ConnectNamedPipe failed (%lu).\n", GetLastError()); |
| 1060 | CloseHandle(hpipe); |
| 1061 | return INVALID_HANDLE_VALUE; |
| 1062 | } |
| 1063 | |
| 1064 | return hpipe; |
| 1065 | } |
| 1066 | |
| 1067 | static BOOL windows_create_process(PROCESS_INFORMATION *pi, const char *args, HANDLE *hjob) |
| 1068 | { |
| 1069 | LPSTR this_cmd_line = GetCommandLine(); |
| 1070 | LPSTR new_process_cmd_line = malloc((strlen(this_cmd_line)+strlen(args)) * sizeof(char *)); |
| 1071 | STARTUPINFO si = {0}; |
| 1072 | DWORD flags = 0; |
| 1073 | |
| 1074 | strcpy(new_process_cmd_line, this_cmd_line); |
| 1075 | strcat(new_process_cmd_line, args); |
| 1076 | |
| 1077 | si.cb = sizeof(si); |
| 1078 | memset(pi, 0, sizeof(*pi)); |
| 1079 | |
| 1080 | if ((hjob != NULL) && (*hjob != INVALID_HANDLE_VALUE)) |
| 1081 | flags = CREATE_SUSPENDED | CREATE_BREAKAWAY_FROM_JOB; |
| 1082 | |
| 1083 | flags |= CREATE_NEW_CONSOLE; |
| 1084 | |
| 1085 | if( !CreateProcess( NULL, |
| 1086 | new_process_cmd_line, |
| 1087 | NULL, /* Process handle not inherited */ |
| 1088 | NULL, /* Thread handle not inherited */ |
| 1089 | TRUE, /* no handle inheritance */ |
| 1090 | flags, |
| 1091 | NULL, /* Use parent's environment block */ |
| 1092 | NULL, /* Use parent's starting directory */ |
| 1093 | &si, |
| 1094 | pi ) |
| 1095 | ) |
| 1096 | { |
| 1097 | log_err("CreateProcess failed (%lu).\n", GetLastError() ); |
| 1098 | free(new_process_cmd_line); |
| 1099 | return 1; |
| 1100 | } |
| 1101 | if ((hjob != NULL) && (*hjob != INVALID_HANDLE_VALUE)) { |
| 1102 | BOOL ret = AssignProcessToJobObject(*hjob, pi->hProcess); |
| 1103 | if (!ret) { |
| 1104 | log_err("AssignProcessToJobObject failed (%lu).\n", GetLastError() ); |
| 1105 | return 1; |
| 1106 | } |
| 1107 | |
| 1108 | ResumeThread(pi->hThread); |
| 1109 | } |
| 1110 | |
| 1111 | free(new_process_cmd_line); |
| 1112 | return 0; |
| 1113 | } |
| 1114 | |
| 1115 | HANDLE windows_create_job(void) |
| 1116 | { |
| 1117 | JOBOBJECT_EXTENDED_LIMIT_INFORMATION jeli = { 0 }; |
| 1118 | BOOL success; |
| 1119 | HANDLE hjob = CreateJobObject(NULL, NULL); |
| 1120 | |
| 1121 | jeli.BasicLimitInformation.LimitFlags = JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE; |
| 1122 | success = SetInformationJobObject(hjob, JobObjectExtendedLimitInformation, &jeli, sizeof(jeli)); |
| 1123 | if ( success == 0 ) { |
| 1124 | log_err( "SetInformationJobObject failed: error %lu\n", GetLastError() ); |
| 1125 | return INVALID_HANDLE_VALUE; |
| 1126 | } |
| 1127 | return hjob; |
| 1128 | } |
| 1129 | |
| 1130 | /* wait for a child process to either exit or connect to a child */ |
| 1131 | static bool monitor_process_till_connect(PROCESS_INFORMATION *pi, HANDLE *hpipe) |
| 1132 | { |
| 1133 | bool connected = FALSE; |
| 1134 | bool process_alive = TRUE; |
| 1135 | char buffer[32] = {0}; |
| 1136 | DWORD bytes_read; |
| 1137 | |
| 1138 | do { |
| 1139 | DWORD exit_code; |
| 1140 | GetExitCodeProcess(pi->hProcess, &exit_code); |
| 1141 | if (exit_code != STILL_ACTIVE) { |
| 1142 | dprint(FD_PROCESS, "process %u exited %d\n", GetProcessId(pi->hProcess), exit_code); |
| 1143 | break; |
| 1144 | } |
| 1145 | |
| 1146 | memset(buffer, 0, sizeof(buffer)); |
| 1147 | ReadFile(*hpipe, &buffer, sizeof(buffer) - 1, &bytes_read, NULL); |
| 1148 | if (bytes_read && strstr(buffer, "connected")) { |
| 1149 | dprint(FD_PROCESS, "process %u connected to client\n", GetProcessId(pi->hProcess)); |
| 1150 | connected = TRUE; |
| 1151 | } |
| 1152 | usleep(10*1000); |
| 1153 | } while (process_alive && !connected); |
| 1154 | return connected; |
| 1155 | } |
| 1156 | |
| 1157 | /*create a process with --server-internal to emulate fork() */ |
| 1158 | HANDLE windows_handle_connection(HANDLE hjob, int sk) |
| 1159 | { |
| 1160 | char pipe_name[64] = "\\\\.\\pipe\\fiointernal-"; |
| 1161 | char args[128] = " --server-internal="; |
| 1162 | PROCESS_INFORMATION pi; |
| 1163 | HANDLE hpipe = INVALID_HANDLE_VALUE; |
| 1164 | WSAPROTOCOL_INFO protocol_info; |
| 1165 | HANDLE ret; |
| 1166 | |
| 1167 | sprintf(pipe_name+strlen(pipe_name), "%d", GetCurrentProcessId()); |
| 1168 | sprintf(args+strlen(args), "%s", pipe_name); |
| 1169 | |
| 1170 | if (windows_create_process(&pi, args, &hjob) != 0) |
| 1171 | return INVALID_HANDLE_VALUE; |
| 1172 | else |
| 1173 | ret = pi.hProcess; |
| 1174 | |
| 1175 | /* duplicate socket and write the protocol_info to pipe so child can |
| 1176 | * duplicate the communication socket */ |
| 1177 | if (WSADuplicateSocket(sk, GetProcessId(pi.hProcess), &protocol_info)) { |
| 1178 | log_err("WSADuplicateSocket failed (%lu).\n", GetLastError()); |
| 1179 | ret = INVALID_HANDLE_VALUE; |
| 1180 | goto cleanup; |
| 1181 | } |
| 1182 | |
| 1183 | /* make a pipe with a unique name based upon processid */ |
| 1184 | hpipe = create_named_pipe(pipe_name, 1000); |
| 1185 | if (hpipe == INVALID_HANDLE_VALUE) { |
| 1186 | ret = INVALID_HANDLE_VALUE; |
| 1187 | goto cleanup; |
| 1188 | } |
| 1189 | |
| 1190 | if (!WriteFile(hpipe, &protocol_info, sizeof(protocol_info), NULL, NULL)) { |
| 1191 | log_err("WriteFile failed (%lu).\n", GetLastError()); |
| 1192 | ret = INVALID_HANDLE_VALUE; |
| 1193 | goto cleanup; |
| 1194 | } |
| 1195 | |
| 1196 | dprint(FD_PROCESS, "process %d created child process %u\n", GetCurrentProcessId(), GetProcessId(pi.hProcess)); |
| 1197 | |
| 1198 | /* monitor the process until it either exits or connects. This level |
| 1199 | * doesnt care which of those occurs because the result is that it |
| 1200 | * needs to loop around and create another child process to monitor */ |
| 1201 | if (!monitor_process_till_connect(&pi, &hpipe)) |
| 1202 | ret = INVALID_HANDLE_VALUE; |
| 1203 | |
| 1204 | cleanup: |
| 1205 | /* close the handles and pipes because this thread is done monitoring them */ |
| 1206 | if (ret == INVALID_HANDLE_VALUE) |
| 1207 | CloseHandle(pi.hProcess); |
| 1208 | CloseHandle(pi.hThread); |
| 1209 | DisconnectNamedPipe(hpipe); |
| 1210 | CloseHandle(hpipe); |
| 1211 | return ret; |
| 1212 | } |