| 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 <semaphore.h> |
| 16 | #include <sys/shm.h> |
| 17 | #include <sys/mman.h> |
| 18 | #include <sys/uio.h> |
| 19 | #include <sys/resource.h> |
| 20 | #include <sys/poll.h> |
| 21 | |
| 22 | #include "../os-windows.h" |
| 23 | #include "../../lib/hweight.h" |
| 24 | |
| 25 | extern unsigned long mtime_since_now(struct timeval *); |
| 26 | extern void fio_gettime(struct timeval *, void *); |
| 27 | |
| 28 | /* These aren't defined in the MinGW headers */ |
| 29 | HRESULT WINAPI StringCchCopyA( |
| 30 | char *pszDest, |
| 31 | size_t cchDest, |
| 32 | const char *pszSrc); |
| 33 | |
| 34 | HRESULT WINAPI StringCchPrintfA( |
| 35 | char *pszDest, |
| 36 | size_t cchDest, |
| 37 | const char *pszFormat, |
| 38 | ...); |
| 39 | |
| 40 | int vsprintf_s( |
| 41 | char *buffer, |
| 42 | size_t numberOfElements, |
| 43 | const char *format, |
| 44 | va_list argptr); |
| 45 | |
| 46 | int win_to_posix_error(DWORD winerr) |
| 47 | { |
| 48 | switch (winerr) |
| 49 | { |
| 50 | case ERROR_FILE_NOT_FOUND: return ENOENT; |
| 51 | case ERROR_PATH_NOT_FOUND: return ENOENT; |
| 52 | case ERROR_ACCESS_DENIED: return EACCES; |
| 53 | case ERROR_INVALID_HANDLE: return EBADF; |
| 54 | case ERROR_NOT_ENOUGH_MEMORY: return ENOMEM; |
| 55 | case ERROR_INVALID_DATA: return EINVAL; |
| 56 | case ERROR_OUTOFMEMORY: return ENOMEM; |
| 57 | case ERROR_INVALID_DRIVE: return ENODEV; |
| 58 | case ERROR_NOT_SAME_DEVICE: return EXDEV; |
| 59 | case ERROR_WRITE_PROTECT: return EROFS; |
| 60 | case ERROR_BAD_UNIT: return ENODEV; |
| 61 | case ERROR_SHARING_VIOLATION: return EACCES; |
| 62 | case ERROR_LOCK_VIOLATION: return EACCES; |
| 63 | case ERROR_SHARING_BUFFER_EXCEEDED: return ENOLCK; |
| 64 | case ERROR_HANDLE_DISK_FULL: return ENOSPC; |
| 65 | case ERROR_NOT_SUPPORTED: return ENOSYS; |
| 66 | case ERROR_FILE_EXISTS: return EEXIST; |
| 67 | case ERROR_CANNOT_MAKE: return EPERM; |
| 68 | case ERROR_INVALID_PARAMETER: return EINVAL; |
| 69 | case ERROR_NO_PROC_SLOTS: return EAGAIN; |
| 70 | case ERROR_BROKEN_PIPE: return EPIPE; |
| 71 | case ERROR_OPEN_FAILED: return EIO; |
| 72 | case ERROR_NO_MORE_SEARCH_HANDLES: return ENFILE; |
| 73 | case ERROR_CALL_NOT_IMPLEMENTED: return ENOSYS; |
| 74 | case ERROR_INVALID_NAME: return ENOENT; |
| 75 | case ERROR_WAIT_NO_CHILDREN: return ECHILD; |
| 76 | case ERROR_CHILD_NOT_COMPLETE: return EBUSY; |
| 77 | case ERROR_DIR_NOT_EMPTY: return ENOTEMPTY; |
| 78 | case ERROR_SIGNAL_REFUSED: return EIO; |
| 79 | case ERROR_BAD_PATHNAME: return ENOENT; |
| 80 | case ERROR_SIGNAL_PENDING: return EBUSY; |
| 81 | case ERROR_MAX_THRDS_REACHED: return EAGAIN; |
| 82 | case ERROR_BUSY: return EBUSY; |
| 83 | case ERROR_ALREADY_EXISTS: return EEXIST; |
| 84 | case ERROR_NO_SIGNAL_SENT: return EIO; |
| 85 | case ERROR_FILENAME_EXCED_RANGE: return EINVAL; |
| 86 | case ERROR_META_EXPANSION_TOO_LONG: return EINVAL; |
| 87 | case ERROR_INVALID_SIGNAL_NUMBER: return EINVAL; |
| 88 | case ERROR_THREAD_1_INACTIVE: return EINVAL; |
| 89 | case ERROR_BAD_PIPE: return EINVAL; |
| 90 | case ERROR_PIPE_BUSY: return EBUSY; |
| 91 | case ERROR_NO_DATA: return EPIPE; |
| 92 | case ERROR_MORE_DATA: return EAGAIN; |
| 93 | case ERROR_DIRECTORY: return ENOTDIR; |
| 94 | case ERROR_PIPE_CONNECTED: return EBUSY; |
| 95 | case ERROR_NO_TOKEN: return EINVAL; |
| 96 | case ERROR_PROCESS_ABORTED: return EFAULT; |
| 97 | case ERROR_BAD_DEVICE: return ENODEV; |
| 98 | case ERROR_BAD_USERNAME: return EINVAL; |
| 99 | case ERROR_OPEN_FILES: return EAGAIN; |
| 100 | case ERROR_ACTIVE_CONNECTIONS: return EAGAIN; |
| 101 | case ERROR_DEVICE_IN_USE: return EAGAIN; |
| 102 | case ERROR_INVALID_AT_INTERRUPT_TIME: return EINTR; |
| 103 | case ERROR_IO_DEVICE: return EIO; |
| 104 | case ERROR_NOT_OWNER: return EPERM; |
| 105 | case ERROR_END_OF_MEDIA: return ENOSPC; |
| 106 | case ERROR_EOM_OVERFLOW: return ENOSPC; |
| 107 | case ERROR_BEGINNING_OF_MEDIA: return ESPIPE; |
| 108 | case ERROR_SETMARK_DETECTED: return ESPIPE; |
| 109 | case ERROR_NO_DATA_DETECTED: return ENOSPC; |
| 110 | case ERROR_POSSIBLE_DEADLOCK: return EDEADLOCK; |
| 111 | case ERROR_CRC: return EIO; |
| 112 | case ERROR_NEGATIVE_SEEK: return EINVAL; |
| 113 | case ERROR_DISK_FULL: return ENOSPC; |
| 114 | case ERROR_NOACCESS: return EFAULT; |
| 115 | case ERROR_FILE_INVALID: return ENXIO; |
| 116 | } |
| 117 | |
| 118 | return winerr; |
| 119 | } |
| 120 | |
| 121 | int GetNumLogicalProcessors(void) |
| 122 | { |
| 123 | SYSTEM_LOGICAL_PROCESSOR_INFORMATION *processor_info = NULL; |
| 124 | DWORD len = 0; |
| 125 | DWORD num_processors = 0; |
| 126 | DWORD error = 0; |
| 127 | DWORD i; |
| 128 | |
| 129 | while (!GetLogicalProcessorInformation(processor_info, &len)) { |
| 130 | error = GetLastError(); |
| 131 | if (error == ERROR_INSUFFICIENT_BUFFER) |
| 132 | processor_info = malloc(len); |
| 133 | else { |
| 134 | log_err("Error: GetLogicalProcessorInformation failed: %d\n", error); |
| 135 | return -1; |
| 136 | } |
| 137 | |
| 138 | if (processor_info == NULL) { |
| 139 | log_err("Error: failed to allocate memory for GetLogicalProcessorInformation"); |
| 140 | return -1; |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | for (i = 0; i < len / sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION); i++) |
| 145 | { |
| 146 | if (processor_info[i].Relationship == RelationProcessorCore) |
| 147 | num_processors += hweight64(processor_info[i].ProcessorMask); |
| 148 | } |
| 149 | |
| 150 | free(processor_info); |
| 151 | return num_processors; |
| 152 | } |
| 153 | |
| 154 | long sysconf(int name) |
| 155 | { |
| 156 | long val = -1; |
| 157 | long val2 = -1; |
| 158 | SYSTEM_INFO sysInfo; |
| 159 | MEMORYSTATUSEX status; |
| 160 | |
| 161 | switch (name) |
| 162 | { |
| 163 | case _SC_NPROCESSORS_ONLN: |
| 164 | val = GetNumLogicalProcessors(); |
| 165 | if (val == -1) |
| 166 | log_err("sysconf(_SC_NPROCESSORS_ONLN) failed\n"); |
| 167 | |
| 168 | break; |
| 169 | |
| 170 | case _SC_PAGESIZE: |
| 171 | GetSystemInfo(&sysInfo); |
| 172 | val = sysInfo.dwPageSize; |
| 173 | break; |
| 174 | |
| 175 | case _SC_PHYS_PAGES: |
| 176 | status.dwLength = sizeof(status); |
| 177 | val2 = sysconf(_SC_PAGESIZE); |
| 178 | if (GlobalMemoryStatusEx(&status) && val2 != -1) |
| 179 | val = status.ullTotalPhys / val2; |
| 180 | else |
| 181 | log_err("sysconf(_SC_PHYS_PAGES) failed\n"); |
| 182 | break; |
| 183 | default: |
| 184 | log_err("sysconf(%d) is not implemented\n", name); |
| 185 | break; |
| 186 | } |
| 187 | |
| 188 | return val; |
| 189 | } |
| 190 | |
| 191 | char *dl_error = NULL; |
| 192 | |
| 193 | int dlclose(void *handle) |
| 194 | { |
| 195 | return !FreeLibrary((HMODULE)handle); |
| 196 | } |
| 197 | |
| 198 | void *dlopen(const char *file, int mode) |
| 199 | { |
| 200 | HMODULE hMod; |
| 201 | |
| 202 | hMod = LoadLibrary(file); |
| 203 | if (hMod == INVALID_HANDLE_VALUE) |
| 204 | dl_error = (char*)"LoadLibrary failed"; |
| 205 | else |
| 206 | dl_error = NULL; |
| 207 | |
| 208 | return hMod; |
| 209 | } |
| 210 | |
| 211 | void *dlsym(void *handle, const char *name) |
| 212 | { |
| 213 | FARPROC fnPtr; |
| 214 | |
| 215 | fnPtr = GetProcAddress((HMODULE)handle, name); |
| 216 | if (fnPtr == NULL) |
| 217 | dl_error = (char*)"GetProcAddress failed"; |
| 218 | else |
| 219 | dl_error = NULL; |
| 220 | |
| 221 | return fnPtr; |
| 222 | } |
| 223 | |
| 224 | char *dlerror(void) |
| 225 | { |
| 226 | return dl_error; |
| 227 | } |
| 228 | |
| 229 | int gettimeofday(struct timeval *restrict tp, void *restrict tzp) |
| 230 | { |
| 231 | FILETIME fileTime; |
| 232 | uint64_t unix_time, windows_time; |
| 233 | const uint64_t MILLISECONDS_BETWEEN_1601_AND_1970 = 11644473600000; |
| 234 | |
| 235 | /* Ignore the timezone parameter */ |
| 236 | (void)tzp; |
| 237 | |
| 238 | /* |
| 239 | * Windows time is stored as the number 100 ns intervals since January 1 1601. |
| 240 | * Conversion details from http://www.informit.com/articles/article.aspx?p=102236&seqNum=3 |
| 241 | * Its precision is 100 ns but accuracy is only one clock tick, or normally around 15 ms. |
| 242 | */ |
| 243 | GetSystemTimeAsFileTime(&fileTime); |
| 244 | windows_time = ((uint64_t)fileTime.dwHighDateTime << 32) + fileTime.dwLowDateTime; |
| 245 | /* Divide by 10,000 to convert to ms and subtract the time between 1601 and 1970 */ |
| 246 | unix_time = (((windows_time)/10000) - MILLISECONDS_BETWEEN_1601_AND_1970); |
| 247 | /* unix_time is now the number of milliseconds since 1970 (the Unix epoch) */ |
| 248 | tp->tv_sec = unix_time / 1000; |
| 249 | tp->tv_usec = (unix_time % 1000) * 1000; |
| 250 | return 0; |
| 251 | } |
| 252 | |
| 253 | int sigaction(int sig, const struct sigaction *act, |
| 254 | struct sigaction *oact) |
| 255 | { |
| 256 | int rc = 0; |
| 257 | void (*prev_handler)(int); |
| 258 | |
| 259 | prev_handler = signal(sig, act->sa_handler); |
| 260 | if (oact != NULL) |
| 261 | oact->sa_handler = prev_handler; |
| 262 | |
| 263 | if (prev_handler == SIG_ERR) |
| 264 | rc = -1; |
| 265 | |
| 266 | return rc; |
| 267 | } |
| 268 | |
| 269 | int lstat(const char * path, struct stat * buf) |
| 270 | { |
| 271 | return stat(path, buf); |
| 272 | } |
| 273 | |
| 274 | void *mmap(void *addr, size_t len, int prot, int flags, |
| 275 | int fildes, off_t off) |
| 276 | { |
| 277 | DWORD vaProt = 0; |
| 278 | void* allocAddr = NULL; |
| 279 | |
| 280 | if (prot & PROT_NONE) |
| 281 | vaProt |= PAGE_NOACCESS; |
| 282 | |
| 283 | if ((prot & PROT_READ) && !(prot & PROT_WRITE)) |
| 284 | vaProt |= PAGE_READONLY; |
| 285 | |
| 286 | if (prot & PROT_WRITE) |
| 287 | vaProt |= PAGE_READWRITE; |
| 288 | |
| 289 | if ((flags & MAP_ANON) | (flags & MAP_ANONYMOUS)) |
| 290 | { |
| 291 | allocAddr = VirtualAlloc(addr, len, MEM_COMMIT, vaProt); |
| 292 | if (allocAddr == NULL) |
| 293 | errno = win_to_posix_error(GetLastError()); |
| 294 | } |
| 295 | |
| 296 | return allocAddr; |
| 297 | } |
| 298 | |
| 299 | int munmap(void *addr, size_t len) |
| 300 | { |
| 301 | if (!VirtualFree(addr, 0, MEM_RELEASE)) { |
| 302 | errno = win_to_posix_error(GetLastError()); |
| 303 | return -1; |
| 304 | } |
| 305 | |
| 306 | return 0; |
| 307 | } |
| 308 | |
| 309 | int fork(void) |
| 310 | { |
| 311 | log_err("%s is not implemented\n", __func__); |
| 312 | errno = ENOSYS; |
| 313 | return -1; |
| 314 | } |
| 315 | |
| 316 | pid_t setsid(void) |
| 317 | { |
| 318 | log_err("%s is not implemented\n", __func__); |
| 319 | errno = ENOSYS; |
| 320 | return -1; |
| 321 | } |
| 322 | |
| 323 | static HANDLE log_file = INVALID_HANDLE_VALUE; |
| 324 | |
| 325 | void openlog(const char *ident, int logopt, int facility) |
| 326 | { |
| 327 | if (log_file == INVALID_HANDLE_VALUE) |
| 328 | log_file = CreateFileA("syslog.txt", GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_ALWAYS, 0, NULL); |
| 329 | } |
| 330 | |
| 331 | void closelog(void) |
| 332 | { |
| 333 | CloseHandle(log_file); |
| 334 | log_file = INVALID_HANDLE_VALUE; |
| 335 | } |
| 336 | |
| 337 | void syslog(int priority, const char *message, ... /* argument */) |
| 338 | { |
| 339 | va_list v; |
| 340 | int len; |
| 341 | char *output; |
| 342 | DWORD bytes_written; |
| 343 | |
| 344 | if (log_file == INVALID_HANDLE_VALUE) { |
| 345 | log_file = CreateFileA("syslog.txt", GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_ALWAYS, 0, NULL); |
| 346 | } |
| 347 | |
| 348 | if (log_file == INVALID_HANDLE_VALUE) { |
| 349 | log_err("syslog: failed to open log file\n"); |
| 350 | return; |
| 351 | } |
| 352 | |
| 353 | va_start(v, message); |
| 354 | len = _vscprintf(message, v); |
| 355 | output = malloc(len + sizeof(char)); |
| 356 | vsprintf(output, message, v); |
| 357 | WriteFile(log_file, output, len, &bytes_written, NULL); |
| 358 | va_end(v); |
| 359 | free(output); |
| 360 | } |
| 361 | |
| 362 | int kill(pid_t pid, int sig) |
| 363 | { |
| 364 | errno = ESRCH; |
| 365 | return -1; |
| 366 | } |
| 367 | |
| 368 | /* |
| 369 | * This is assumed to be used only by the network code, |
| 370 | * and so doesn't try and handle any of the other cases |
| 371 | */ |
| 372 | int fcntl(int fildes, int cmd, ...) |
| 373 | { |
| 374 | /* |
| 375 | * non-blocking mode doesn't work the same as in BSD sockets, |
| 376 | * so ignore it. |
| 377 | */ |
| 378 | #if 0 |
| 379 | va_list ap; |
| 380 | int val, opt, status; |
| 381 | |
| 382 | if (cmd == F_GETFL) |
| 383 | return 0; |
| 384 | else if (cmd != F_SETFL) { |
| 385 | errno = EINVAL; |
| 386 | return -1; |
| 387 | } |
| 388 | |
| 389 | va_start(ap, 1); |
| 390 | |
| 391 | opt = va_arg(ap, int); |
| 392 | if (opt & O_NONBLOCK) |
| 393 | val = 1; |
| 394 | else |
| 395 | val = 0; |
| 396 | |
| 397 | status = ioctlsocket((SOCKET)fildes, opt, &val); |
| 398 | |
| 399 | if (status == SOCKET_ERROR) { |
| 400 | errno = EINVAL; |
| 401 | val = -1; |
| 402 | } |
| 403 | |
| 404 | va_end(ap); |
| 405 | |
| 406 | return val; |
| 407 | #endif |
| 408 | return 0; |
| 409 | } |
| 410 | |
| 411 | /* |
| 412 | * Get the value of a local clock source. |
| 413 | * This implementation supports 2 clocks: CLOCK_MONOTONIC provides high-accuracy |
| 414 | * relative time, while CLOCK_REALTIME provides a low-accuracy wall time. |
| 415 | */ |
| 416 | int clock_gettime(clockid_t clock_id, struct timespec *tp) |
| 417 | { |
| 418 | int rc = 0; |
| 419 | |
| 420 | if (clock_id == CLOCK_MONOTONIC) |
| 421 | { |
| 422 | static LARGE_INTEGER freq = {{0,0}}; |
| 423 | LARGE_INTEGER counts; |
| 424 | uint64_t t; |
| 425 | |
| 426 | QueryPerformanceCounter(&counts); |
| 427 | if (freq.QuadPart == 0) |
| 428 | QueryPerformanceFrequency(&freq); |
| 429 | |
| 430 | tp->tv_sec = counts.QuadPart / freq.QuadPart; |
| 431 | /* Get the difference between the number of ns stored |
| 432 | * in 'tv_sec' and that stored in 'counts' */ |
| 433 | t = tp->tv_sec * freq.QuadPart; |
| 434 | t = counts.QuadPart - t; |
| 435 | /* 't' now contains the number of cycles since the last second. |
| 436 | * We want the number of nanoseconds, so multiply out by 1,000,000,000 |
| 437 | * and then divide by the frequency. */ |
| 438 | t *= 1000000000; |
| 439 | tp->tv_nsec = t / freq.QuadPart; |
| 440 | } |
| 441 | else if (clock_id == CLOCK_REALTIME) |
| 442 | { |
| 443 | /* clock_gettime(CLOCK_REALTIME,...) is just an alias for gettimeofday with a |
| 444 | * higher-precision field. */ |
| 445 | struct timeval tv; |
| 446 | gettimeofday(&tv, NULL); |
| 447 | tp->tv_sec = tv.tv_sec; |
| 448 | tp->tv_nsec = tv.tv_usec * 1000; |
| 449 | } else { |
| 450 | errno = EINVAL; |
| 451 | rc = -1; |
| 452 | } |
| 453 | |
| 454 | return rc; |
| 455 | } |
| 456 | |
| 457 | int mlock(const void * addr, size_t len) |
| 458 | { |
| 459 | SIZE_T min, max; |
| 460 | BOOL success; |
| 461 | HANDLE process = GetCurrentProcess(); |
| 462 | |
| 463 | success = GetProcessWorkingSetSize(process, &min, &max); |
| 464 | if (!success) { |
| 465 | errno = win_to_posix_error(GetLastError()); |
| 466 | return -1; |
| 467 | } |
| 468 | |
| 469 | min += len; |
| 470 | max += len; |
| 471 | success = SetProcessWorkingSetSize(process, min, max); |
| 472 | if (!success) { |
| 473 | errno = win_to_posix_error(GetLastError()); |
| 474 | return -1; |
| 475 | } |
| 476 | |
| 477 | success = VirtualLock((LPVOID)addr, len); |
| 478 | if (!success) { |
| 479 | errno = win_to_posix_error(GetLastError()); |
| 480 | return -1; |
| 481 | } |
| 482 | |
| 483 | return 0; |
| 484 | } |
| 485 | |
| 486 | int munlock(const void * addr, size_t len) |
| 487 | { |
| 488 | BOOL success = VirtualUnlock((LPVOID)addr, len); |
| 489 | if (!success) { |
| 490 | errno = win_to_posix_error(GetLastError()); |
| 491 | return -1; |
| 492 | } |
| 493 | |
| 494 | return 0; |
| 495 | } |
| 496 | |
| 497 | pid_t waitpid(pid_t pid, int *stat_loc, int options) |
| 498 | { |
| 499 | log_err("%s is not implemented\n", __func__); |
| 500 | errno = ENOSYS; |
| 501 | return -1; |
| 502 | } |
| 503 | |
| 504 | int usleep(useconds_t useconds) |
| 505 | { |
| 506 | Sleep(useconds / 1000); |
| 507 | return 0; |
| 508 | } |
| 509 | |
| 510 | char *basename(char *path) |
| 511 | { |
| 512 | static char name[MAX_PATH]; |
| 513 | int i; |
| 514 | |
| 515 | if (path == NULL || strlen(path) == 0) |
| 516 | return (char*)"."; |
| 517 | |
| 518 | i = strlen(path) - 1; |
| 519 | |
| 520 | while (path[i] != '\\' && path[i] != '/' && i >= 0) |
| 521 | i--; |
| 522 | |
| 523 | strncpy(name, path + i + 1, MAX_PATH); |
| 524 | |
| 525 | return name; |
| 526 | } |
| 527 | |
| 528 | int fsync(int fildes) |
| 529 | { |
| 530 | HANDLE hFile = (HANDLE)_get_osfhandle(fildes); |
| 531 | if (!FlushFileBuffers(hFile)) { |
| 532 | errno = win_to_posix_error(GetLastError()); |
| 533 | return -1; |
| 534 | } |
| 535 | |
| 536 | return 0; |
| 537 | } |
| 538 | |
| 539 | int nFileMappings = 0; |
| 540 | HANDLE fileMappings[1024]; |
| 541 | |
| 542 | int shmget(key_t key, size_t size, int shmflg) |
| 543 | { |
| 544 | int mapid = -1; |
| 545 | uint32_t size_low = size & 0xFFFFFFFF; |
| 546 | uint32_t size_high = ((uint64_t)size) >> 32; |
| 547 | HANDLE hMapping = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, (PAGE_EXECUTE_READWRITE | SEC_RESERVE), size_high, size_low, NULL); |
| 548 | if (hMapping != NULL) { |
| 549 | fileMappings[nFileMappings] = hMapping; |
| 550 | mapid = nFileMappings; |
| 551 | nFileMappings++; |
| 552 | } else { |
| 553 | errno = ENOSYS; |
| 554 | } |
| 555 | |
| 556 | return mapid; |
| 557 | } |
| 558 | |
| 559 | void *shmat(int shmid, const void *shmaddr, int shmflg) |
| 560 | { |
| 561 | void* mapAddr; |
| 562 | MEMORY_BASIC_INFORMATION memInfo; |
| 563 | mapAddr = MapViewOfFile(fileMappings[shmid], FILE_MAP_ALL_ACCESS, 0, 0, 0); |
| 564 | if (mapAddr == NULL) { |
| 565 | errno = win_to_posix_error(GetLastError()); |
| 566 | return (void*)-1; |
| 567 | } |
| 568 | |
| 569 | if (VirtualQuery(mapAddr, &memInfo, sizeof(memInfo)) == 0) { |
| 570 | errno = win_to_posix_error(GetLastError()); |
| 571 | return (void*)-1; |
| 572 | } |
| 573 | |
| 574 | mapAddr = VirtualAlloc(mapAddr, memInfo.RegionSize, MEM_COMMIT, PAGE_READWRITE); |
| 575 | if (mapAddr == NULL) { |
| 576 | errno = win_to_posix_error(GetLastError()); |
| 577 | return (void*)-1; |
| 578 | } |
| 579 | |
| 580 | return mapAddr; |
| 581 | } |
| 582 | |
| 583 | int shmdt(const void *shmaddr) |
| 584 | { |
| 585 | if (!UnmapViewOfFile(shmaddr)) { |
| 586 | errno = win_to_posix_error(GetLastError()); |
| 587 | return -1; |
| 588 | } |
| 589 | |
| 590 | return 0; |
| 591 | } |
| 592 | |
| 593 | int shmctl(int shmid, int cmd, struct shmid_ds *buf) |
| 594 | { |
| 595 | if (cmd == IPC_RMID) { |
| 596 | fileMappings[shmid] = INVALID_HANDLE_VALUE; |
| 597 | return 0; |
| 598 | } else { |
| 599 | log_err("%s is not implemented\n", __func__); |
| 600 | } |
| 601 | errno = ENOSYS; |
| 602 | return -1; |
| 603 | } |
| 604 | |
| 605 | int setuid(uid_t uid) |
| 606 | { |
| 607 | log_err("%s is not implemented\n", __func__); |
| 608 | errno = ENOSYS; |
| 609 | return -1; |
| 610 | } |
| 611 | |
| 612 | int setgid(gid_t gid) |
| 613 | { |
| 614 | log_err("%s is not implemented\n", __func__); |
| 615 | errno = ENOSYS; |
| 616 | return -1; |
| 617 | } |
| 618 | |
| 619 | int nice(int incr) |
| 620 | { |
| 621 | if (incr != 0) { |
| 622 | errno = EINVAL; |
| 623 | return -1; |
| 624 | } |
| 625 | |
| 626 | return 0; |
| 627 | } |
| 628 | |
| 629 | int getrusage(int who, struct rusage *r_usage) |
| 630 | { |
| 631 | const uint64_t SECONDS_BETWEEN_1601_AND_1970 = 11644473600; |
| 632 | FILETIME cTime, eTime, kTime, uTime; |
| 633 | time_t time; |
| 634 | HANDLE h; |
| 635 | |
| 636 | memset(r_usage, 0, sizeof(*r_usage)); |
| 637 | |
| 638 | if (who == RUSAGE_SELF) { |
| 639 | h = GetCurrentProcess(); |
| 640 | GetProcessTimes(h, &cTime, &eTime, &kTime, &uTime); |
| 641 | } else if (who == RUSAGE_THREAD) { |
| 642 | h = GetCurrentThread(); |
| 643 | GetThreadTimes(h, &cTime, &eTime, &kTime, &uTime); |
| 644 | } else { |
| 645 | log_err("fio: getrusage %d is not implemented\n", who); |
| 646 | return -1; |
| 647 | } |
| 648 | |
| 649 | time = ((uint64_t)uTime.dwHighDateTime << 32) + uTime.dwLowDateTime; |
| 650 | /* Divide by 10,000,000 to get the number of seconds and move the epoch from |
| 651 | * 1601 to 1970 */ |
| 652 | time = (time_t)(((time)/10000000) - SECONDS_BETWEEN_1601_AND_1970); |
| 653 | r_usage->ru_utime.tv_sec = time; |
| 654 | /* getrusage() doesn't care about anything other than seconds, so set tv_usec to 0 */ |
| 655 | r_usage->ru_utime.tv_usec = 0; |
| 656 | time = ((uint64_t)kTime.dwHighDateTime << 32) + kTime.dwLowDateTime; |
| 657 | /* Divide by 10,000,000 to get the number of seconds and move the epoch from |
| 658 | * 1601 to 1970 */ |
| 659 | time = (time_t)(((time)/10000000) - SECONDS_BETWEEN_1601_AND_1970); |
| 660 | r_usage->ru_stime.tv_sec = time; |
| 661 | r_usage->ru_stime.tv_usec = 0; |
| 662 | return 0; |
| 663 | } |
| 664 | |
| 665 | int posix_madvise(void *addr, size_t len, int advice) |
| 666 | { |
| 667 | log_err("%s is not implemented\n", __func__); |
| 668 | return ENOSYS; |
| 669 | } |
| 670 | |
| 671 | /* Windows doesn't support advice for memory pages. Just ignore it. */ |
| 672 | int msync(void *addr, size_t len, int flags) |
| 673 | { |
| 674 | errno = ENOSYS; |
| 675 | return -1; |
| 676 | } |
| 677 | |
| 678 | int fdatasync(int fildes) |
| 679 | { |
| 680 | return fsync(fildes); |
| 681 | } |
| 682 | |
| 683 | ssize_t pwrite(int fildes, const void *buf, size_t nbyte, |
| 684 | off_t offset) |
| 685 | { |
| 686 | int64_t pos = _telli64(fildes); |
| 687 | ssize_t len = _write(fildes, buf, nbyte); |
| 688 | _lseeki64(fildes, pos, SEEK_SET); |
| 689 | return len; |
| 690 | } |
| 691 | |
| 692 | ssize_t pread(int fildes, void *buf, size_t nbyte, off_t offset) |
| 693 | { |
| 694 | int64_t pos = _telli64(fildes); |
| 695 | ssize_t len = read(fildes, buf, nbyte); |
| 696 | _lseeki64(fildes, pos, SEEK_SET); |
| 697 | return len; |
| 698 | } |
| 699 | |
| 700 | ssize_t readv(int fildes, const struct iovec *iov, int iovcnt) |
| 701 | { |
| 702 | log_err("%s is not implemented\n", __func__); |
| 703 | errno = ENOSYS; |
| 704 | return -1; |
| 705 | } |
| 706 | |
| 707 | ssize_t writev(int fildes, const struct iovec *iov, int iovcnt) |
| 708 | { |
| 709 | log_err("%s is not implemented\n", __func__); |
| 710 | errno = ENOSYS; |
| 711 | return -1; |
| 712 | } |
| 713 | |
| 714 | long long strtoll(const char *restrict str, char **restrict endptr, |
| 715 | int base) |
| 716 | { |
| 717 | return _strtoi64(str, endptr, base); |
| 718 | } |
| 719 | |
| 720 | int poll(struct pollfd fds[], nfds_t nfds, int timeout) |
| 721 | { |
| 722 | struct timeval tv; |
| 723 | struct timeval *to = NULL; |
| 724 | fd_set readfds, writefds, exceptfds; |
| 725 | int i; |
| 726 | int rc; |
| 727 | |
| 728 | if (timeout != -1) { |
| 729 | to = &tv; |
| 730 | to->tv_sec = timeout / 1000; |
| 731 | to->tv_usec = (timeout % 1000) * 1000; |
| 732 | } |
| 733 | |
| 734 | FD_ZERO(&readfds); |
| 735 | FD_ZERO(&writefds); |
| 736 | FD_ZERO(&exceptfds); |
| 737 | |
| 738 | for (i = 0; i < nfds; i++) |
| 739 | { |
| 740 | if (fds[i].fd < 0) { |
| 741 | fds[i].revents = 0; |
| 742 | continue; |
| 743 | } |
| 744 | |
| 745 | if (fds[i].events & POLLIN) |
| 746 | FD_SET(fds[i].fd, &readfds); |
| 747 | |
| 748 | if (fds[i].events & POLLOUT) |
| 749 | FD_SET(fds[i].fd, &writefds); |
| 750 | |
| 751 | FD_SET(fds[i].fd, &exceptfds); |
| 752 | } |
| 753 | |
| 754 | rc = select(nfds, &readfds, &writefds, &exceptfds, to); |
| 755 | |
| 756 | if (rc != SOCKET_ERROR) { |
| 757 | for (i = 0; i < nfds; i++) |
| 758 | { |
| 759 | if (fds[i].fd < 0) { |
| 760 | continue; |
| 761 | } |
| 762 | |
| 763 | if ((fds[i].events & POLLIN) && FD_ISSET(fds[i].fd, &readfds)) |
| 764 | fds[i].revents |= POLLIN; |
| 765 | |
| 766 | if ((fds[i].events & POLLOUT) && FD_ISSET(fds[i].fd, &writefds)) |
| 767 | fds[i].revents |= POLLOUT; |
| 768 | |
| 769 | if (FD_ISSET(fds[i].fd, &exceptfds)) |
| 770 | fds[i].revents |= POLLHUP; |
| 771 | } |
| 772 | } |
| 773 | |
| 774 | return rc; |
| 775 | } |
| 776 | |
| 777 | int nanosleep(const struct timespec *rqtp, struct timespec *rmtp) |
| 778 | { |
| 779 | struct timeval tv; |
| 780 | DWORD ms_remaining; |
| 781 | DWORD ms_total = (rqtp->tv_sec * 1000) + (rqtp->tv_nsec / 1000000.0); |
| 782 | |
| 783 | if (ms_total == 0) |
| 784 | ms_total = 1; |
| 785 | |
| 786 | ms_remaining = ms_total; |
| 787 | |
| 788 | /* Since Sleep() can sleep for less than the requested time, add a loop to |
| 789 | ensure we only return after the requested length of time has elapsed */ |
| 790 | do { |
| 791 | fio_gettime(&tv, NULL); |
| 792 | Sleep(ms_remaining); |
| 793 | ms_remaining = ms_total - mtime_since_now(&tv); |
| 794 | } while (ms_remaining > 0 && ms_remaining < ms_total); |
| 795 | |
| 796 | /* this implementation will never sleep for less than the requested time */ |
| 797 | if (rmtp != NULL) { |
| 798 | rmtp->tv_sec = 0; |
| 799 | rmtp->tv_nsec = 0; |
| 800 | } |
| 801 | |
| 802 | return 0; |
| 803 | } |
| 804 | |
| 805 | DIR *opendir(const char *dirname) |
| 806 | { |
| 807 | struct dirent_ctx *dc = NULL; |
| 808 | |
| 809 | /* See if we can open it. If not, we'll return an error here */ |
| 810 | HANDLE file = CreateFileA(dirname, 0, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL); |
| 811 | if (file != INVALID_HANDLE_VALUE) { |
| 812 | CloseHandle(file); |
| 813 | dc = (struct dirent_ctx*)malloc(sizeof(struct dirent_ctx)); |
| 814 | StringCchCopyA(dc->dirname, MAX_PATH, dirname); |
| 815 | dc->find_handle = INVALID_HANDLE_VALUE; |
| 816 | } else { |
| 817 | DWORD error = GetLastError(); |
| 818 | if (error == ERROR_FILE_NOT_FOUND) |
| 819 | errno = ENOENT; |
| 820 | |
| 821 | else if (error == ERROR_PATH_NOT_FOUND) |
| 822 | errno = ENOTDIR; |
| 823 | else if (error == ERROR_TOO_MANY_OPEN_FILES) |
| 824 | errno = ENFILE; |
| 825 | else if (error == ERROR_ACCESS_DENIED) |
| 826 | errno = EACCES; |
| 827 | else |
| 828 | errno = error; |
| 829 | } |
| 830 | |
| 831 | return dc; |
| 832 | } |
| 833 | |
| 834 | int closedir(DIR *dirp) |
| 835 | { |
| 836 | if (dirp != NULL && dirp->find_handle != INVALID_HANDLE_VALUE) |
| 837 | FindClose(dirp->find_handle); |
| 838 | |
| 839 | free(dirp); |
| 840 | return 0; |
| 841 | } |
| 842 | |
| 843 | struct dirent *readdir(DIR *dirp) |
| 844 | { |
| 845 | static struct dirent de; |
| 846 | WIN32_FIND_DATA find_data; |
| 847 | |
| 848 | if (dirp == NULL) |
| 849 | return NULL; |
| 850 | |
| 851 | if (dirp->find_handle == INVALID_HANDLE_VALUE) { |
| 852 | char search_pattern[MAX_PATH]; |
| 853 | StringCchPrintfA(search_pattern, MAX_PATH, "%s\\*", dirp->dirname); |
| 854 | dirp->find_handle = FindFirstFileA(search_pattern, &find_data); |
| 855 | if (dirp->find_handle == INVALID_HANDLE_VALUE) |
| 856 | return NULL; |
| 857 | } else { |
| 858 | if (!FindNextFile(dirp->find_handle, &find_data)) |
| 859 | return NULL; |
| 860 | } |
| 861 | |
| 862 | StringCchCopyA(de.d_name, MAX_PATH, find_data.cFileName); |
| 863 | de.d_ino = 0; |
| 864 | |
| 865 | return &de; |
| 866 | } |
| 867 | |
| 868 | uid_t geteuid(void) |
| 869 | { |
| 870 | log_err("%s is not implemented\n", __func__); |
| 871 | errno = ENOSYS; |
| 872 | return -1; |
| 873 | } |
| 874 | |
| 875 | const char* inet_ntop(int af, const void *restrict src, |
| 876 | char *restrict dst, socklen_t size) |
| 877 | { |
| 878 | INT status = SOCKET_ERROR; |
| 879 | WSADATA wsd; |
| 880 | char *ret = NULL; |
| 881 | |
| 882 | if (af != AF_INET && af != AF_INET6) { |
| 883 | errno = EAFNOSUPPORT; |
| 884 | return NULL; |
| 885 | } |
| 886 | |
| 887 | WSAStartup(MAKEWORD(2,2), &wsd); |
| 888 | |
| 889 | if (af == AF_INET) { |
| 890 | struct sockaddr_in si; |
| 891 | DWORD len = size; |
| 892 | memset(&si, 0, sizeof(si)); |
| 893 | si.sin_family = af; |
| 894 | memcpy(&si.sin_addr, src, sizeof(si.sin_addr)); |
| 895 | status = WSAAddressToString((struct sockaddr*)&si, sizeof(si), NULL, dst, &len); |
| 896 | } else if (af == AF_INET6) { |
| 897 | struct sockaddr_in6 si6; |
| 898 | DWORD len = size; |
| 899 | memset(&si6, 0, sizeof(si6)); |
| 900 | si6.sin6_family = af; |
| 901 | memcpy(&si6.sin6_addr, src, sizeof(si6.sin6_addr)); |
| 902 | status = WSAAddressToString((struct sockaddr*)&si6, sizeof(si6), NULL, dst, &len); |
| 903 | } |
| 904 | |
| 905 | if (status != SOCKET_ERROR) |
| 906 | ret = dst; |
| 907 | else |
| 908 | errno = ENOSPC; |
| 909 | |
| 910 | WSACleanup(); |
| 911 | |
| 912 | return ret; |
| 913 | } |
| 914 | |
| 915 | int inet_pton(int af, const char *restrict src, void *restrict dst) |
| 916 | { |
| 917 | INT status = SOCKET_ERROR; |
| 918 | WSADATA wsd; |
| 919 | int ret = 1; |
| 920 | |
| 921 | if (af != AF_INET && af != AF_INET6) { |
| 922 | errno = EAFNOSUPPORT; |
| 923 | return -1; |
| 924 | } |
| 925 | |
| 926 | WSAStartup(MAKEWORD(2,2), &wsd); |
| 927 | |
| 928 | if (af == AF_INET) { |
| 929 | struct sockaddr_in si; |
| 930 | INT len = sizeof(si); |
| 931 | memset(&si, 0, sizeof(si)); |
| 932 | si.sin_family = af; |
| 933 | status = WSAStringToAddressA((char*)src, af, NULL, (struct sockaddr*)&si, &len); |
| 934 | if (status != SOCKET_ERROR) |
| 935 | memcpy(dst, &si.sin_addr, sizeof(si.sin_addr)); |
| 936 | } else if (af == AF_INET6) { |
| 937 | struct sockaddr_in6 si6; |
| 938 | INT len = sizeof(si6); |
| 939 | memset(&si6, 0, sizeof(si6)); |
| 940 | si6.sin6_family = af; |
| 941 | status = WSAStringToAddressA((char*)src, af, NULL, (struct sockaddr*)&si6, &len); |
| 942 | if (status != SOCKET_ERROR) |
| 943 | memcpy(dst, &si6.sin6_addr, sizeof(si6.sin6_addr)); |
| 944 | } |
| 945 | |
| 946 | if (status == SOCKET_ERROR) { |
| 947 | errno = ENOSPC; |
| 948 | ret = 0; |
| 949 | } |
| 950 | |
| 951 | WSACleanup(); |
| 952 | |
| 953 | return ret; |
| 954 | } |