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 <sys/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 timeval *); 29 extern void fio_gettime(struct timeval *, void *); 30 31 /* These aren't defined in the MinGW headers */ 32 HRESULT WINAPI StringCchCopyA( 33 char *pszDest, 34 size_t cchDest, 35 const char *pszSrc); 36 37 HRESULT WINAPI StringCchPrintfA( 38 char *pszDest, 39 size_t cchDest, 40 const char *pszFormat, 41 ...); 42 43 int win_to_posix_error(DWORD winerr) 44 { 45 switch (winerr) 46 { 47 case ERROR_FILE_NOT_FOUND: return ENOENT; 48 case ERROR_PATH_NOT_FOUND: return ENOENT; 49 case ERROR_ACCESS_DENIED: return EACCES; 50 case ERROR_INVALID_HANDLE: return EBADF; 51 case ERROR_NOT_ENOUGH_MEMORY: return ENOMEM; 52 case ERROR_INVALID_DATA: return EINVAL; 53 case ERROR_OUTOFMEMORY: return ENOMEM; 54 case ERROR_INVALID_DRIVE: return ENODEV; 55 case ERROR_NOT_SAME_DEVICE: return EXDEV; 56 case ERROR_WRITE_PROTECT: return EROFS; 57 case ERROR_BAD_UNIT: return ENODEV; 58 case ERROR_SHARING_VIOLATION: return EACCES; 59 case ERROR_LOCK_VIOLATION: return EACCES; 60 case ERROR_SHARING_BUFFER_EXCEEDED: return ENOLCK; 61 case ERROR_HANDLE_DISK_FULL: return ENOSPC; 62 case ERROR_NOT_SUPPORTED: return ENOSYS; 63 case ERROR_FILE_EXISTS: return EEXIST; 64 case ERROR_CANNOT_MAKE: return EPERM; 65 case ERROR_INVALID_PARAMETER: return EINVAL; 66 case ERROR_NO_PROC_SLOTS: return EAGAIN; 67 case ERROR_BROKEN_PIPE: return EPIPE; 68 case ERROR_OPEN_FAILED: return EIO; 69 case ERROR_NO_MORE_SEARCH_HANDLES: return ENFILE; 70 case ERROR_CALL_NOT_IMPLEMENTED: return ENOSYS; 71 case ERROR_INVALID_NAME: return ENOENT; 72 case ERROR_WAIT_NO_CHILDREN: return ECHILD; 73 case ERROR_CHILD_NOT_COMPLETE: return EBUSY; 74 case ERROR_DIR_NOT_EMPTY: return ENOTEMPTY; 75 case ERROR_SIGNAL_REFUSED: return EIO; 76 case ERROR_BAD_PATHNAME: return ENOENT; 77 case ERROR_SIGNAL_PENDING: return EBUSY; 78 case ERROR_MAX_THRDS_REACHED: return EAGAIN; 79 case ERROR_BUSY: return EBUSY; 80 case ERROR_ALREADY_EXISTS: return EEXIST; 81 case ERROR_NO_SIGNAL_SENT: return EIO; 82 case ERROR_FILENAME_EXCED_RANGE: return EINVAL; 83 case ERROR_META_EXPANSION_TOO_LONG: return EINVAL; 84 case ERROR_INVALID_SIGNAL_NUMBER: return EINVAL; 85 case ERROR_THREAD_1_INACTIVE: return EINVAL; 86 case ERROR_BAD_PIPE: return EINVAL; 87 case ERROR_PIPE_BUSY: return EBUSY; 88 case ERROR_NO_DATA: return EPIPE; 89 case ERROR_MORE_DATA: return EAGAIN; 90 case ERROR_DIRECTORY: return ENOTDIR; 91 case ERROR_PIPE_CONNECTED: return EBUSY; 92 case ERROR_NO_TOKEN: return EINVAL; 93 case ERROR_PROCESS_ABORTED: return EFAULT; 94 case ERROR_BAD_DEVICE: return ENODEV; 95 case ERROR_BAD_USERNAME: return EINVAL; 96 case ERROR_OPEN_FILES: return EAGAIN; 97 case ERROR_ACTIVE_CONNECTIONS: return EAGAIN; 98 case ERROR_DEVICE_IN_USE: return EAGAIN; 99 case ERROR_INVALID_AT_INTERRUPT_TIME: return EINTR; 100 case ERROR_IO_DEVICE: return EIO; 101 case ERROR_NOT_OWNER: return EPERM; 102 case ERROR_END_OF_MEDIA: return ENOSPC; 103 case ERROR_EOM_OVERFLOW: return ENOSPC; 104 case ERROR_BEGINNING_OF_MEDIA: return ESPIPE; 105 case ERROR_SETMARK_DETECTED: return ESPIPE; 106 case ERROR_NO_DATA_DETECTED: return ENOSPC; 107 case ERROR_POSSIBLE_DEADLOCK: return EDEADLOCK; 108 case ERROR_CRC: return EIO; 109 case ERROR_NEGATIVE_SEEK: return EINVAL; 110 case ERROR_DISK_FULL: return ENOSPC; 111 case ERROR_NOACCESS: return EFAULT; 112 case ERROR_FILE_INVALID: return ENXIO; 113 } 114 115 return winerr; 116 } 117 118 int GetNumLogicalProcessors(void) 119 { 120 SYSTEM_LOGICAL_PROCESSOR_INFORMATION *processor_info = NULL; 121 DWORD len = 0; 122 DWORD num_processors = 0; 123 DWORD error = 0; 124 DWORD i; 125 126 while (!GetLogicalProcessorInformation(processor_info, &len)) { 127 error = GetLastError(); 128 if (error == ERROR_INSUFFICIENT_BUFFER) 129 processor_info = malloc(len); 130 else { 131 log_err("Error: GetLogicalProcessorInformation failed: %d\n", error); 132 return -1; 133 } 134 135 if (processor_info == NULL) { 136 log_err("Error: failed to allocate memory for GetLogicalProcessorInformation"); 137 return -1; 138 } 139 } 140 141 for (i = 0; i < len / sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION); i++) 142 { 143 if (processor_info[i].Relationship == RelationProcessorCore) 144 num_processors += hweight64(processor_info[i].ProcessorMask); 145 } 146 147 free(processor_info); 148 return num_processors; 149 } 150 151 long sysconf(int name) 152 { 153 long val = -1; 154 long val2 = -1; 155 SYSTEM_INFO sysInfo; 156 MEMORYSTATUSEX status; 157 158 switch (name) 159 { 160 case _SC_NPROCESSORS_ONLN: 161 val = GetNumLogicalProcessors(); 162 if (val == -1) 163 log_err("sysconf(_SC_NPROCESSORS_ONLN) failed\n"); 164 165 break; 166 167 case _SC_PAGESIZE: 168 GetSystemInfo(&sysInfo); 169 val = sysInfo.dwPageSize; 170 break; 171 172 case _SC_PHYS_PAGES: 173 status.dwLength = sizeof(status); 174 val2 = sysconf(_SC_PAGESIZE); 175 if (GlobalMemoryStatusEx(&status) && val2 != -1) 176 val = status.ullTotalPhys / val2; 177 else 178 log_err("sysconf(_SC_PHYS_PAGES) failed\n"); 179 break; 180 default: 181 log_err("sysconf(%d) is not implemented\n", name); 182 break; 183 } 184 185 return val; 186 } 187 188 char *dl_error = NULL; 189 190 int dlclose(void *handle) 191 { 192 return !FreeLibrary((HMODULE)handle); 193 } 194 195 void *dlopen(const char *file, int mode) 196 { 197 HMODULE hMod; 198 199 hMod = LoadLibrary(file); 200 if (hMod == INVALID_HANDLE_VALUE) 201 dl_error = (char*)"LoadLibrary failed"; 202 else 203 dl_error = NULL; 204 205 return hMod; 206 } 207 208 void *dlsym(void *handle, const char *name) 209 { 210 FARPROC fnPtr; 211 212 fnPtr = GetProcAddress((HMODULE)handle, name); 213 if (fnPtr == NULL) 214 dl_error = (char*)"GetProcAddress failed"; 215 else 216 dl_error = NULL; 217 218 return fnPtr; 219 } 220 221 char *dlerror(void) 222 { 223 return dl_error; 224 } 225 226 /* Copied from http://blogs.msdn.com/b/joshpoley/archive/2007/12/19/date-time-formats-and-conversions.aspx */ 227 void Time_tToSystemTime(time_t dosTime, SYSTEMTIME *systemTime) 228 { 229 FILETIME utcFT; 230 LONGLONG jan1970; 231 232 jan1970 = Int32x32To64(dosTime, 10000000) + 116444736000000000; 233 utcFT.dwLowDateTime = (DWORD)jan1970; 234 utcFT.dwHighDateTime = jan1970 >> 32; 235 236 FileTimeToSystemTime((FILETIME*)&utcFT, systemTime); 237 } 238 239 char* ctime_r(const time_t *t, char *buf) 240 { 241 SYSTEMTIME systime; 242 const char * const dayOfWeek[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" }; 243 const char * const monthOfYear[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" }; 244 245 Time_tToSystemTime(*t, &systime); 246 /* We don't know how long `buf` is, but assume it's rounded up from the minimum of 25 to 32 */ 247 StringCchPrintfA(buf, 31, "%s %s %d %02d:%02d:%02d %04d\n", dayOfWeek[systime.wDayOfWeek % 7], monthOfYear[(systime.wMonth - 1) % 12], 248 systime.wDay, systime.wHour, systime.wMinute, systime.wSecond, systime.wYear); 249 return buf; 250 } 251 252 int gettimeofday(struct timeval *restrict tp, void *restrict tzp) 253 { 254 FILETIME fileTime; 255 uint64_t unix_time, windows_time; 256 const uint64_t MILLISECONDS_BETWEEN_1601_AND_1970 = 11644473600000; 257 258 /* Ignore the timezone parameter */ 259 (void)tzp; 260 261 /* 262 * Windows time is stored as the number 100 ns intervals since January 1 1601. 263 * Conversion details from http://www.informit.com/articles/article.aspx?p=102236&seqNum=3 264 * Its precision is 100 ns but accuracy is only one clock tick, or normally around 15 ms. 265 */ 266 GetSystemTimeAsFileTime(&fileTime); 267 windows_time = ((uint64_t)fileTime.dwHighDateTime << 32) + fileTime.dwLowDateTime; 268 /* Divide by 10,000 to convert to ms and subtract the time between 1601 and 1970 */ 269 unix_time = (((windows_time)/10000) - MILLISECONDS_BETWEEN_1601_AND_1970); 270 /* unix_time is now the number of milliseconds since 1970 (the Unix epoch) */ 271 tp->tv_sec = unix_time / 1000; 272 tp->tv_usec = (unix_time % 1000) * 1000; 273 return 0; 274 } 275 276 int sigaction(int sig, const struct sigaction *act, 277 struct sigaction *oact) 278 { 279 int rc = 0; 280 void (*prev_handler)(int); 281 282 prev_handler = signal(sig, act->sa_handler); 283 if (oact != NULL) 284 oact->sa_handler = prev_handler; 285 286 if (prev_handler == SIG_ERR) 287 rc = -1; 288 289 return rc; 290 } 291 292 int lstat(const char * path, struct stat * buf) 293 { 294 return stat(path, buf); 295 } 296 297 void *mmap(void *addr, size_t len, int prot, int flags, 298 int fildes, off_t off) 299 { 300 DWORD vaProt = 0; 301 DWORD mapAccess = 0; 302 DWORD lenlow; 303 DWORD lenhigh; 304 HANDLE hMap; 305 void* allocAddr = NULL; 306 307 if (prot & PROT_NONE) 308 vaProt |= PAGE_NOACCESS; 309 310 if ((prot & PROT_READ) && !(prot & PROT_WRITE)) { 311 vaProt |= PAGE_READONLY; 312 mapAccess = FILE_MAP_READ; 313 } 314 315 if (prot & PROT_WRITE) { 316 vaProt |= PAGE_READWRITE; 317 mapAccess |= FILE_MAP_WRITE; 318 } 319 320 lenlow = len & 0xFFFF; 321 lenhigh = len >> 16; 322 /* If the low DWORD is zero and the high DWORD is non-zero, `CreateFileMapping` 323 will return ERROR_INVALID_PARAMETER. To avoid this, set both to zero. */ 324 if (lenlow == 0) { 325 lenhigh = 0; 326 } 327 328 if (flags & MAP_ANON || flags & MAP_ANONYMOUS) 329 { 330 allocAddr = VirtualAlloc(addr, len, MEM_COMMIT, vaProt); 331 if (allocAddr == NULL) 332 errno = win_to_posix_error(GetLastError()); 333 } 334 else 335 { 336 hMap = CreateFileMapping((HANDLE)_get_osfhandle(fildes), NULL, vaProt, lenhigh, lenlow, NULL); 337 338 if (hMap != NULL) 339 { 340 allocAddr = MapViewOfFile(hMap, mapAccess, off >> 16, off & 0xFFFF, len); 341 } 342 343 if (hMap == NULL || allocAddr == NULL) 344 errno = win_to_posix_error(GetLastError()); 345 346 } 347 348 return allocAddr; 349 } 350 351 int munmap(void *addr, size_t len) 352 { 353 BOOL success; 354 355 /* We may have allocated the memory with either MapViewOfFile or 356 VirtualAlloc. Therefore, try calling UnmapViewOfFile first, and if that 357 fails, call VirtualFree. */ 358 success = UnmapViewOfFile(addr); 359 360 if (!success) 361 { 362 success = VirtualFree(addr, 0, MEM_RELEASE); 363 } 364 365 return !success; 366 } 367 368 int msync(void *addr, size_t len, int flags) 369 { 370 return !FlushViewOfFile(addr, len); 371 } 372 373 int fork(void) 374 { 375 log_err("%s is not implemented\n", __func__); 376 errno = ENOSYS; 377 return -1; 378 } 379 380 pid_t setsid(void) 381 { 382 log_err("%s is not implemented\n", __func__); 383 errno = ENOSYS; 384 return -1; 385 } 386 387 static HANDLE log_file = INVALID_HANDLE_VALUE; 388 389 void openlog(const char *ident, int logopt, int facility) 390 { 391 if (log_file == INVALID_HANDLE_VALUE) 392 log_file = CreateFileA("syslog.txt", GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_ALWAYS, 0, NULL); 393 } 394 395 void closelog(void) 396 { 397 CloseHandle(log_file); 398 log_file = INVALID_HANDLE_VALUE; 399 } 400 401 void syslog(int priority, const char *message, ... /* argument */) 402 { 403 va_list v; 404 int len; 405 char *output; 406 DWORD bytes_written; 407 408 if (log_file == INVALID_HANDLE_VALUE) { 409 log_file = CreateFileA("syslog.txt", GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_ALWAYS, 0, NULL); 410 } 411 412 if (log_file == INVALID_HANDLE_VALUE) { 413 log_err("syslog: failed to open log file\n"); 414 return; 415 } 416 417 va_start(v, message); 418 len = _vscprintf(message, v); 419 output = malloc(len + sizeof(char)); 420 vsprintf(output, message, v); 421 WriteFile(log_file, output, len, &bytes_written, NULL); 422 va_end(v); 423 free(output); 424 } 425 426 int kill(pid_t pid, int sig) 427 { 428 errno = ESRCH; 429 return -1; 430 } 431 432 /* 433 * This is assumed to be used only by the network code, 434 * and so doesn't try and handle any of the other cases 435 */ 436 int fcntl(int fildes, int cmd, ...) 437 { 438 /* 439 * non-blocking mode doesn't work the same as in BSD sockets, 440 * so ignore it. 441 */ 442 #if 0 443 va_list ap; 444 int val, opt, status; 445 446 if (cmd == F_GETFL) 447 return 0; 448 else if (cmd != F_SETFL) { 449 errno = EINVAL; 450 return -1; 451 } 452 453 va_start(ap, 1); 454 455 opt = va_arg(ap, int); 456 if (opt & O_NONBLOCK) 457 val = 1; 458 else 459 val = 0; 460 461 status = ioctlsocket((SOCKET)fildes, opt, &val); 462 463 if (status == SOCKET_ERROR) { 464 errno = EINVAL; 465 val = -1; 466 } 467 468 va_end(ap); 469 470 return val; 471 #endif 472 return 0; 473 } 474 475 /* 476 * Get the value of a local clock source. 477 * This implementation supports 2 clocks: CLOCK_MONOTONIC provides high-accuracy 478 * relative time, while CLOCK_REALTIME provides a low-accuracy wall time. 479 */ 480 int clock_gettime(clockid_t clock_id, struct timespec *tp) 481 { 482 int rc = 0; 483 484 if (clock_id == CLOCK_MONOTONIC) 485 { 486 static LARGE_INTEGER freq = {{0,0}}; 487 LARGE_INTEGER counts; 488 uint64_t t; 489 490 QueryPerformanceCounter(&counts); 491 if (freq.QuadPart == 0) 492 QueryPerformanceFrequency(&freq); 493 494 tp->tv_sec = counts.QuadPart / freq.QuadPart; 495 /* Get the difference between the number of ns stored 496 * in 'tv_sec' and that stored in 'counts' */ 497 t = tp->tv_sec * freq.QuadPart; 498 t = counts.QuadPart - t; 499 /* 't' now contains the number of cycles since the last second. 500 * We want the number of nanoseconds, so multiply out by 1,000,000,000 501 * and then divide by the frequency. */ 502 t *= 1000000000; 503 tp->tv_nsec = t / freq.QuadPart; 504 } 505 else if (clock_id == CLOCK_REALTIME) 506 { 507 /* clock_gettime(CLOCK_REALTIME,...) is just an alias for gettimeofday with a 508 * higher-precision field. */ 509 struct timeval tv; 510 gettimeofday(&tv, NULL); 511 tp->tv_sec = tv.tv_sec; 512 tp->tv_nsec = tv.tv_usec * 1000; 513 } else { 514 errno = EINVAL; 515 rc = -1; 516 } 517 518 return rc; 519 } 520 521 int mlock(const void * addr, size_t len) 522 { 523 SIZE_T min, max; 524 BOOL success; 525 HANDLE process = GetCurrentProcess(); 526 527 success = GetProcessWorkingSetSize(process, &min, &max); 528 if (!success) { 529 errno = win_to_posix_error(GetLastError()); 530 return -1; 531 } 532 533 min += len; 534 max += len; 535 success = SetProcessWorkingSetSize(process, min, max); 536 if (!success) { 537 errno = win_to_posix_error(GetLastError()); 538 return -1; 539 } 540 541 success = VirtualLock((LPVOID)addr, len); 542 if (!success) { 543 errno = win_to_posix_error(GetLastError()); 544 return -1; 545 } 546 547 return 0; 548 } 549 550 int munlock(const void * addr, size_t len) 551 { 552 BOOL success = VirtualUnlock((LPVOID)addr, len); 553 if (!success) { 554 errno = win_to_posix_error(GetLastError()); 555 return -1; 556 } 557 558 return 0; 559 } 560 561 pid_t waitpid(pid_t pid, int *stat_loc, int options) 562 { 563 log_err("%s is not implemented\n", __func__); 564 errno = ENOSYS; 565 return -1; 566 } 567 568 int usleep(useconds_t useconds) 569 { 570 Sleep(useconds / 1000); 571 return 0; 572 } 573 574 char *basename(char *path) 575 { 576 static char name[MAX_PATH]; 577 int i; 578 579 if (path == NULL || strlen(path) == 0) 580 return (char*)"."; 581 582 i = strlen(path) - 1; 583 584 while (path[i] != '\\' && path[i] != '/' && i >= 0) 585 i--; 586 587 strncpy(name, path + i + 1, MAX_PATH); 588 589 return name; 590 } 591 592 int fsync(int fildes) 593 { 594 HANDLE hFile = (HANDLE)_get_osfhandle(fildes); 595 if (!FlushFileBuffers(hFile)) { 596 errno = win_to_posix_error(GetLastError()); 597 return -1; 598 } 599 600 return 0; 601 } 602 603 int nFileMappings = 0; 604 HANDLE fileMappings[1024]; 605 606 int shmget(key_t key, size_t size, int shmflg) 607 { 608 int mapid = -1; 609 uint32_t size_low = size & 0xFFFFFFFF; 610 uint32_t size_high = ((uint64_t)size) >> 32; 611 HANDLE hMapping = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, (PAGE_EXECUTE_READWRITE | SEC_RESERVE), size_high, size_low, NULL); 612 if (hMapping != NULL) { 613 fileMappings[nFileMappings] = hMapping; 614 mapid = nFileMappings; 615 nFileMappings++; 616 } else { 617 errno = ENOSYS; 618 } 619 620 return mapid; 621 } 622 623 void *shmat(int shmid, const void *shmaddr, int shmflg) 624 { 625 void* mapAddr; 626 MEMORY_BASIC_INFORMATION memInfo; 627 mapAddr = MapViewOfFile(fileMappings[shmid], FILE_MAP_ALL_ACCESS, 0, 0, 0); 628 if (mapAddr == NULL) { 629 errno = win_to_posix_error(GetLastError()); 630 return (void*)-1; 631 } 632 633 if (VirtualQuery(mapAddr, &memInfo, sizeof(memInfo)) == 0) { 634 errno = win_to_posix_error(GetLastError()); 635 return (void*)-1; 636 } 637 638 mapAddr = VirtualAlloc(mapAddr, memInfo.RegionSize, MEM_COMMIT, PAGE_READWRITE); 639 if (mapAddr == NULL) { 640 errno = win_to_posix_error(GetLastError()); 641 return (void*)-1; 642 } 643 644 return mapAddr; 645 } 646 647 int shmdt(const void *shmaddr) 648 { 649 if (!UnmapViewOfFile(shmaddr)) { 650 errno = win_to_posix_error(GetLastError()); 651 return -1; 652 } 653 654 return 0; 655 } 656 657 int shmctl(int shmid, int cmd, struct shmid_ds *buf) 658 { 659 if (cmd == IPC_RMID) { 660 fileMappings[shmid] = INVALID_HANDLE_VALUE; 661 return 0; 662 } else { 663 log_err("%s is not implemented\n", __func__); 664 } 665 errno = ENOSYS; 666 return -1; 667 } 668 669 int setuid(uid_t uid) 670 { 671 log_err("%s is not implemented\n", __func__); 672 errno = ENOSYS; 673 return -1; 674 } 675 676 int setgid(gid_t gid) 677 { 678 log_err("%s is not implemented\n", __func__); 679 errno = ENOSYS; 680 return -1; 681 } 682 683 int nice(int incr) 684 { 685 DWORD prioclass = NORMAL_PRIORITY_CLASS; 686 687 if (incr < -15) 688 prioclass = HIGH_PRIORITY_CLASS; 689 else if (incr < 0) 690 prioclass = ABOVE_NORMAL_PRIORITY_CLASS; 691 else if (incr > 15) 692 prioclass = IDLE_PRIORITY_CLASS; 693 else if (incr > 0) 694 prioclass = BELOW_NORMAL_PRIORITY_CLASS; 695 696 if (!SetPriorityClass(GetCurrentProcess(), prioclass)) 697 log_err("fio: SetPriorityClass failed\n"); 698 699 return 0; 700 } 701 702 int getrusage(int who, struct rusage *r_usage) 703 { 704 const uint64_t SECONDS_BETWEEN_1601_AND_1970 = 11644473600; 705 FILETIME cTime, eTime, kTime, uTime; 706 time_t time; 707 HANDLE h; 708 709 memset(r_usage, 0, sizeof(*r_usage)); 710 711 if (who == RUSAGE_SELF) { 712 h = GetCurrentProcess(); 713 GetProcessTimes(h, &cTime, &eTime, &kTime, &uTime); 714 } else if (who == RUSAGE_THREAD) { 715 h = GetCurrentThread(); 716 GetThreadTimes(h, &cTime, &eTime, &kTime, &uTime); 717 } else { 718 log_err("fio: getrusage %d is not implemented\n", who); 719 return -1; 720 } 721 722 time = ((uint64_t)uTime.dwHighDateTime << 32) + uTime.dwLowDateTime; 723 /* Divide by 10,000,000 to get the number of seconds and move the epoch from 724 * 1601 to 1970 */ 725 time = (time_t)(((time)/10000000) - SECONDS_BETWEEN_1601_AND_1970); 726 r_usage->ru_utime.tv_sec = time; 727 /* getrusage() doesn't care about anything other than seconds, so set tv_usec to 0 */ 728 r_usage->ru_utime.tv_usec = 0; 729 time = ((uint64_t)kTime.dwHighDateTime << 32) + kTime.dwLowDateTime; 730 /* Divide by 10,000,000 to get the number of seconds and move the epoch from 731 * 1601 to 1970 */ 732 time = (time_t)(((time)/10000000) - SECONDS_BETWEEN_1601_AND_1970); 733 r_usage->ru_stime.tv_sec = time; 734 r_usage->ru_stime.tv_usec = 0; 735 return 0; 736 } 737 738 int posix_madvise(void *addr, size_t len, int advice) 739 { 740 return ENOSYS; 741 } 742 743 int fdatasync(int fildes) 744 { 745 return fsync(fildes); 746 } 747 748 ssize_t pwrite(int fildes, const void *buf, size_t nbyte, 749 off_t offset) 750 { 751 int64_t pos = _telli64(fildes); 752 ssize_t len = _write(fildes, buf, nbyte); 753 _lseeki64(fildes, pos, SEEK_SET); 754 return len; 755 } 756 757 ssize_t pread(int fildes, void *buf, size_t nbyte, off_t offset) 758 { 759 int64_t pos = _telli64(fildes); 760 ssize_t len = read(fildes, buf, nbyte); 761 _lseeki64(fildes, pos, SEEK_SET); 762 return len; 763 } 764 765 ssize_t readv(int fildes, const struct iovec *iov, int iovcnt) 766 { 767 log_err("%s is not implemented\n", __func__); 768 errno = ENOSYS; 769 return -1; 770 } 771 772 ssize_t writev(int fildes, const struct iovec *iov, int iovcnt) 773 { 774 int i; 775 DWORD bytes_written = 0; 776 for (i = 0; i < iovcnt; i++) 777 { 778 int len = send((SOCKET)fildes, iov[i].iov_base, iov[i].iov_len, 0); 779 if (len == SOCKET_ERROR) 780 { 781 DWORD err = GetLastError(); 782 errno = win_to_posix_error(err); 783 bytes_written = -1; 784 break; 785 } 786 bytes_written += len; 787 } 788 789 return bytes_written; 790 } 791 792 long long strtoll(const char *restrict str, char **restrict endptr, 793 int base) 794 { 795 return _strtoi64(str, endptr, base); 796 } 797 798 int poll(struct pollfd fds[], nfds_t nfds, int timeout) 799 { 800 struct timeval tv; 801 struct timeval *to = NULL; 802 fd_set readfds, writefds, exceptfds; 803 int i; 804 int rc; 805 806 if (timeout != -1) { 807 to = &tv; 808 to->tv_sec = timeout / 1000; 809 to->tv_usec = (timeout % 1000) * 1000; 810 } 811 812 FD_ZERO(&readfds); 813 FD_ZERO(&writefds); 814 FD_ZERO(&exceptfds); 815 816 for (i = 0; i < nfds; i++) 817 { 818 if (fds[i].fd < 0) { 819 fds[i].revents = 0; 820 continue; 821 } 822 823 if (fds[i].events & POLLIN) 824 FD_SET(fds[i].fd, &readfds); 825 826 if (fds[i].events & POLLOUT) 827 FD_SET(fds[i].fd, &writefds); 828 829 FD_SET(fds[i].fd, &exceptfds); 830 } 831 rc = select(nfds, &readfds, &writefds, &exceptfds, to); 832 833 if (rc != SOCKET_ERROR) { 834 for (i = 0; i < nfds; i++) 835 { 836 if (fds[i].fd < 0) { 837 continue; 838 } 839 840 if ((fds[i].events & POLLIN) && FD_ISSET(fds[i].fd, &readfds)) 841 fds[i].revents |= POLLIN; 842 843 if ((fds[i].events & POLLOUT) && FD_ISSET(fds[i].fd, &writefds)) 844 fds[i].revents |= POLLOUT; 845 846 if (FD_ISSET(fds[i].fd, &exceptfds)) 847 fds[i].revents |= POLLHUP; 848 } 849 } 850 return rc; 851 } 852 853 int nanosleep(const struct timespec *rqtp, struct timespec *rmtp) 854 { 855 struct timeval tv; 856 DWORD ms_remaining; 857 DWORD ms_total = (rqtp->tv_sec * 1000) + (rqtp->tv_nsec / 1000000.0); 858 859 if (ms_total == 0) 860 ms_total = 1; 861 862 ms_remaining = ms_total; 863 864 /* Since Sleep() can sleep for less than the requested time, add a loop to 865 ensure we only return after the requested length of time has elapsed */ 866 do { 867 fio_gettime(&tv, NULL); 868 Sleep(ms_remaining); 869 ms_remaining = ms_total - mtime_since_now(&tv); 870 } while (ms_remaining > 0 && ms_remaining < ms_total); 871 872 /* this implementation will never sleep for less than the requested time */ 873 if (rmtp != NULL) { 874 rmtp->tv_sec = 0; 875 rmtp->tv_nsec = 0; 876 } 877 878 return 0; 879 } 880 881 DIR *opendir(const char *dirname) 882 { 883 struct dirent_ctx *dc = NULL; 884 885 /* See if we can open it. If not, we'll return an error here */ 886 HANDLE file = CreateFileA(dirname, 0, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL); 887 if (file != INVALID_HANDLE_VALUE) { 888 CloseHandle(file); 889 dc = (struct dirent_ctx*)malloc(sizeof(struct dirent_ctx)); 890 StringCchCopyA(dc->dirname, MAX_PATH, dirname); 891 dc->find_handle = INVALID_HANDLE_VALUE; 892 } else { 893 DWORD error = GetLastError(); 894 if (error == ERROR_FILE_NOT_FOUND) 895 errno = ENOENT; 896 897 else if (error == ERROR_PATH_NOT_FOUND) 898 errno = ENOTDIR; 899 else if (error == ERROR_TOO_MANY_OPEN_FILES) 900 errno = ENFILE; 901 else if (error == ERROR_ACCESS_DENIED) 902 errno = EACCES; 903 else 904 errno = error; 905 } 906 907 return dc; 908 } 909 910 int closedir(DIR *dirp) 911 { 912 if (dirp != NULL && dirp->find_handle != INVALID_HANDLE_VALUE) 913 FindClose(dirp->find_handle); 914 915 free(dirp); 916 return 0; 917 } 918 919 struct dirent *readdir(DIR *dirp) 920 { 921 static struct dirent de; 922 WIN32_FIND_DATA find_data; 923 924 if (dirp == NULL) 925 return NULL; 926 927 if (dirp->find_handle == INVALID_HANDLE_VALUE) { 928 char search_pattern[MAX_PATH]; 929 StringCchPrintfA(search_pattern, MAX_PATH-1, "%s\\*", dirp->dirname); 930 dirp->find_handle = FindFirstFileA(search_pattern, &find_data); 931 if (dirp->find_handle == INVALID_HANDLE_VALUE) 932 return NULL; 933 } else { 934 if (!FindNextFile(dirp->find_handle, &find_data)) 935 return NULL; 936 } 937 938 StringCchCopyA(de.d_name, MAX_PATH, find_data.cFileName); 939 de.d_ino = 0; 940 941 return &de; 942 } 943 944 uid_t geteuid(void) 945 { 946 log_err("%s is not implemented\n", __func__); 947 errno = ENOSYS; 948 return -1; 949 } 950 951 in_addr_t inet_network(const char *cp) 952 { 953 in_addr_t hbo; 954 in_addr_t nbo = inet_addr(cp); 955 hbo = ((nbo & 0xFF) << 24) + ((nbo & 0xFF00) << 8) + ((nbo & 0xFF0000) >> 8) + ((nbo & 0xFF000000) >> 24); 956 return hbo; 957 } 958 959 const char* inet_ntop(int af, const void *restrict src, 960 char *restrict dst, socklen_t size) 961 { 962 INT status = SOCKET_ERROR; 963 WSADATA wsd; 964 char *ret = NULL; 965 966 if (af != AF_INET && af != AF_INET6) { 967 errno = EAFNOSUPPORT; 968 return NULL; 969 } 970 971 WSAStartup(MAKEWORD(2,2), &wsd); 972 973 if (af == AF_INET) { 974 struct sockaddr_in si; 975 DWORD len = size; 976 memset(&si, 0, sizeof(si)); 977 si.sin_family = af; 978 memcpy(&si.sin_addr, src, sizeof(si.sin_addr)); 979 status = WSAAddressToString((struct sockaddr*)&si, sizeof(si), NULL, dst, &len); 980 } else if (af == AF_INET6) { 981 struct sockaddr_in6 si6; 982 DWORD len = size; 983 memset(&si6, 0, sizeof(si6)); 984 si6.sin6_family = af; 985 memcpy(&si6.sin6_addr, src, sizeof(si6.sin6_addr)); 986 status = WSAAddressToString((struct sockaddr*)&si6, sizeof(si6), NULL, dst, &len); 987 } 988 989 if (status != SOCKET_ERROR) 990 ret = dst; 991 else 992 errno = ENOSPC; 993 994 WSACleanup(); 995 996 return ret; 997 } 998 999 int inet_pton(int af, const char *restrict src, void *restrict dst) 1000 { 1001 INT status = SOCKET_ERROR; 1002 WSADATA wsd; 1003 int ret = 1; 1004 1005 if (af != AF_INET && af != AF_INET6) { 1006 errno = EAFNOSUPPORT; 1007 return -1; 1008 } 1009 1010 WSAStartup(MAKEWORD(2,2), &wsd); 1011 1012 if (af == AF_INET) { 1013 struct sockaddr_in si; 1014 INT len = sizeof(si); 1015 memset(&si, 0, sizeof(si)); 1016 si.sin_family = af; 1017 status = WSAStringToAddressA((char*)src, af, NULL, (struct sockaddr*)&si, &len); 1018 if (status != SOCKET_ERROR) 1019 memcpy(dst, &si.sin_addr, sizeof(si.sin_addr)); 1020 } else if (af == AF_INET6) { 1021 struct sockaddr_in6 si6; 1022 INT len = sizeof(si6); 1023 memset(&si6, 0, sizeof(si6)); 1024 si6.sin6_family = af; 1025 status = WSAStringToAddressA((char*)src, af, NULL, (struct sockaddr*)&si6, &len); 1026 if (status != SOCKET_ERROR) 1027 memcpy(dst, &si6.sin6_addr, sizeof(si6.sin6_addr)); 1028 } 1029 1030 if (status == SOCKET_ERROR) { 1031 errno = ENOSPC; 1032 ret = 0; 1033 } 1034 1035 WSACleanup(); 1036 1037 return ret; 1038 } 1039
