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.
7 #include <netinet/in.h>
14 #include <semaphore.h>
18 #include <sys/resource.h>
21 #include "../os-windows.h"
23 long sysconf(int name)
27 SYSTEM_LOGICAL_PROCESSOR_INFORMATION processorInfo;
29 MEMORYSTATUSEX status;
33 case _SC_NPROCESSORS_ONLN:
34 len = sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION);
35 GetLogicalProcessorInformation(&processorInfo, &len);
36 val = len / sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION);
40 GetSystemInfo(&sysInfo);
41 val = sysInfo.dwPageSize;
45 status.dwLength = sizeof(status);
46 GlobalMemoryStatusEx(&status);
47 val = status.ullTotalPhys;
50 log_err("sysconf(%d) is not implemented\n", name);
57 char *dl_error = NULL;
59 int dlclose(void *handle)
61 return !FreeLibrary((HMODULE)handle);
64 void *dlopen(const char *file, int mode)
68 hMod = LoadLibrary(file);
69 if (hMod == INVALID_HANDLE_VALUE)
70 dl_error = (char*)"LoadLibrary failed";
77 void *dlsym(void *handle, const char *name)
81 fnPtr = GetProcAddress((HMODULE)handle, name);
83 dl_error = (char*)"GetProcAddress failed";
95 int gettimeofday(struct timeval *restrict tp, void *restrict tzp)
98 unsigned long long unix_time, windows_time;
99 const time_t MILLISECONDS_BETWEEN_1601_AND_1970 = 11644473600000;
101 /* Ignore the timezone parameter */
105 * Windows time is stored as the number 100 ns intervals since January 1 1601.
106 * Conversion details from http://www.informit.com/articles/article.aspx?p=102236&seqNum=3
107 * Its precision is 100 ns but accuracy is only one clock tick, or normally around 15 ms.
109 GetSystemTimeAsFileTime(&fileTime);
110 windows_time = ((unsigned long long)fileTime.dwHighDateTime << 32) + fileTime.dwLowDateTime;
111 /* Divide by 10,000 to convert to ms and subtract the time between 1601 and 1970 */
112 unix_time = (((windows_time)/10000) - MILLISECONDS_BETWEEN_1601_AND_1970);
113 /* unix_time is now the number of milliseconds since 1970 (the Unix epoch) */
114 tp->tv_sec = unix_time / 1000;
115 tp->tv_usec = (unix_time % 1000) * 1000;
119 void syslog(int priority, const char *message, ... /* argument */)
121 log_err("%s is not implemented\n", __func__);
124 int sigaction(int sig, const struct sigaction *act,
125 struct sigaction *oact)
131 int lstat(const char * path, struct stat * buf)
133 return stat(path, buf);
136 void *mmap(void *addr, size_t len, int prot, int flags,
137 int fildes, off_t off)
140 void* allocAddr = NULL;
142 if (prot & PROT_NONE)
143 vaProt |= PAGE_NOACCESS;
145 if ((prot & PROT_READ) && !(prot & PROT_WRITE))
146 vaProt |= PAGE_READONLY;
148 if (prot & PROT_WRITE)
149 vaProt |= PAGE_READWRITE;
151 if ((flags & MAP_ANON) | (flags & MAP_ANONYMOUS))
153 allocAddr = VirtualAlloc(addr, len, MEM_COMMIT, vaProt);
159 int munmap(void *addr, size_t len)
161 return !VirtualFree(addr, 0, MEM_RELEASE);
166 log_err("%s is not implemented\n", __func__);
173 log_err("%s is not implemented\n", __func__);
178 void openlog(const char *ident, int logopt, int facility)
180 log_err("%s is not implemented\n", __func__);
185 log_err("%s is not implemented\n", __func__);
188 int kill(pid_t pid, int sig)
195 * This is assumed to be used only by the network code,
196 * and so doesn't try and handle any of the other cases
198 int fcntl(int fildes, int cmd, ...)
201 * non-blocking mode doesn't work the same as in BSD sockets,
206 int val, opt, status;
210 else if (cmd != F_SETFL) {
217 opt = va_arg(ap, int);
218 if (opt & O_NONBLOCK)
223 status = ioctlsocket((SOCKET)fildes, opt, &val);
225 if (status == SOCKET_ERROR) {
238 * Get the value of a local clock source.
239 * This implementation supports 2 clocks: CLOCK_MONOTONIC provides high-accuracy
240 * relative time, while CLOCK_REALTIME provides a low-accuracy wall time.
242 int clock_gettime(clockid_t clock_id, struct timespec *tp)
246 if (clock_id == CLOCK_MONOTONIC)
248 static LARGE_INTEGER freq = {{0,0}};
249 LARGE_INTEGER counts;
251 QueryPerformanceCounter(&counts);
252 if (freq.QuadPart == 0)
253 QueryPerformanceFrequency(&freq);
255 tp->tv_sec = counts.QuadPart / freq.QuadPart;
256 /* Get the difference between the number of ns stored
257 * in 'tv_sec' and that stored in 'counts' */
258 unsigned long long t = tp->tv_sec * freq.QuadPart;
259 t = counts.QuadPart - t;
260 /* 't' now contains the number of cycles since the last second.
261 * We want the number of nanoseconds, so multiply out by 1,000,000,000
262 * and then divide by the frequency. */
264 tp->tv_nsec = t / freq.QuadPart;
266 else if (clock_id == CLOCK_REALTIME)
268 /* clock_gettime(CLOCK_REALTIME,...) is just an alias for gettimeofday with a
269 * higher-precision field. */
271 gettimeofday(&tv, NULL);
272 tp->tv_sec = tv.tv_sec;
273 tp->tv_nsec = tv.tv_usec * 1000;
282 int mlock(const void * addr, size_t len)
284 return !VirtualLock((LPVOID)addr, len);
287 int munlock(const void * addr, size_t len)
289 return !VirtualUnlock((LPVOID)addr, len);
292 pid_t waitpid(pid_t pid, int *stat_loc, int options)
294 log_err("%s is not implemented\n", __func__);
299 int usleep(useconds_t useconds)
301 Sleep(useconds / 1000);
305 char *basename(char *path)
307 static char name[MAX_PATH];
310 if (path == NULL || strlen(path) == 0)
313 i = strlen(path) - 1;
315 while (name[i] != '\\' && name[i] != '/' && i >= 0)
318 strcpy(name, path + i);
323 int posix_fallocate(int fd, off_t offset, off_t len)
325 log_err("%s is not implemented\n", __func__);
330 int ftruncate(int fildes, off_t length)
333 int old_pos = tell(fildes);
334 lseek(fildes, length, SEEK_SET);
335 HANDLE hFile = (HANDLE)_get_osfhandle(fildes);
336 bSuccess = SetEndOfFile(hFile);
337 lseek(fildes, old_pos, SEEK_SET);
341 int fsync(int fildes)
343 HANDLE hFile = (HANDLE)_get_osfhandle(fildes);
344 return !FlushFileBuffers(hFile);
347 int nFileMappings = 0;
348 HANDLE fileMappings[1024];
350 int shmget(key_t key, size_t size, int shmflg)
353 HANDLE hMapping = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, (PAGE_EXECUTE_READWRITE | SEC_RESERVE), size >> 32, size & 0xFFFFFFFF, NULL);
354 if (hMapping != NULL) {
355 fileMappings[nFileMappings] = hMapping;
356 mapid = nFileMappings;
365 void *shmat(int shmid, const void *shmaddr, int shmflg)
368 MEMORY_BASIC_INFORMATION memInfo;
369 mapAddr = MapViewOfFile(fileMappings[shmid], FILE_MAP_ALL_ACCESS, 0, 0, 0);
370 VirtualQuery(mapAddr, &memInfo, sizeof(memInfo));
371 mapAddr = VirtualAlloc(mapAddr, memInfo.RegionSize, MEM_COMMIT, PAGE_READWRITE);
375 int shmdt(const void *shmaddr)
377 return !UnmapViewOfFile(shmaddr);
380 int shmctl(int shmid, int cmd, struct shmid_ds *buf)
382 if (cmd == IPC_RMID) {
383 fileMappings[shmid] = INVALID_HANDLE_VALUE;
386 log_err("%s is not implemented\n", __func__);
391 int setuid(uid_t uid)
393 log_err("%s is not implemented\n", __func__);
398 int setgid(gid_t gid)
400 log_err("%s is not implemented\n", __func__);
415 int getrusage(int who, struct rusage *r_usage)
417 const time_t SECONDS_BETWEEN_1601_AND_1970 = 11644473600;
418 FILETIME cTime, eTime, kTime, uTime;
421 memset(r_usage, 0, sizeof(*r_usage));
423 HANDLE hProcess = GetCurrentProcess();
424 GetProcessTimes(hProcess, &cTime, &eTime, &kTime, &uTime);
425 time = ((unsigned long long)uTime.dwHighDateTime << 32) + uTime.dwLowDateTime;
426 /* Divide by 10,000,000 to get the number of seconds and move the epoch from
428 time = (time_t)(((time)/10000000) - SECONDS_BETWEEN_1601_AND_1970);
429 r_usage->ru_utime.tv_sec = time;
430 /* getrusage() doesn't care about anything other than seconds, so set tv_usec to 0 */
431 r_usage->ru_utime.tv_usec = 0;
432 time = ((unsigned long long)kTime.dwHighDateTime << 32) + kTime.dwLowDateTime;
433 /* Divide by 10,000,000 to get the number of seconds and move the epoch from
435 time = (time_t)(((time)/10000000) - SECONDS_BETWEEN_1601_AND_1970);
436 r_usage->ru_stime.tv_sec = time;
437 r_usage->ru_stime.tv_usec = 0;
441 int posix_madvise(void *addr, size_t len, int advice)
443 log_err("%s is not implemented\n", __func__);
447 /* Windows doesn't support advice for memory pages. Just ignore it. */
448 int msync(void *addr, size_t len, int flags)
450 log_err("%s is not implemented\n", __func__);
455 int fdatasync(int fildes)
457 return fsync(fildes);
460 ssize_t pwrite(int fildes, const void *buf, size_t nbyte,
463 long pos = tell(fildes);
464 ssize_t len = write(fildes, buf, nbyte);
465 lseek(fildes, pos, SEEK_SET);
469 ssize_t pread(int fildes, void *buf, size_t nbyte, off_t offset)
471 long pos = tell(fildes);
472 ssize_t len = read(fildes, buf, nbyte);
473 lseek(fildes, pos, SEEK_SET);
477 ssize_t readv(int fildes, const struct iovec *iov, int iovcnt)
479 log_err("%s is not implemented\n", __func__);
484 ssize_t writev(int fildes, const struct iovec *iov, int iovcnt)
486 log_err("%s is not implemented\n", __func__);
491 long long strtoll(const char *restrict str, char **restrict endptr,
494 return _strtoi64(str, endptr, base);
497 char *strsep(char **stringp, const char *delim)
499 char *orig = *stringp;
500 BOOL gotMatch = FALSE;
504 if (*stringp == NULL)
507 while ((*stringp)[i] != '\0') {
509 while (delim[j] != '\0') {
510 if ((*stringp)[i] == delim[j]) {
512 (*stringp)[i] = '\0';
513 *stringp = *stringp + i + 1;
530 int poll(struct pollfd fds[], nfds_t nfds, int timeout)
533 struct timeval *to = NULL;
534 fd_set readfds, writefds, exceptfds;
541 to->tv_sec = timeout / 1000;
542 to->tv_usec = (timeout % 1000) * 1000;
548 for (i = 0; i < nfds; i++)
555 if (fds[i].events & POLLIN)
556 FD_SET(fds[i].fd, &readfds);
558 if (fds[i].events & POLLOUT)
559 FD_SET(fds[i].fd, &writefds);
561 FD_SET(fds[i].fd, &exceptfds);
564 rc = select(nfds, &readfds, &writefds, &exceptfds, to);
566 if (rc != SOCKET_ERROR) {
567 for (i = 0; i < nfds; i++)
573 if ((fds[i].events & POLLIN) && FD_ISSET(fds[i].fd, &readfds))
574 fds[i].revents |= POLLIN;
576 if ((fds[i].events & POLLOUT) && FD_ISSET(fds[i].fd, &writefds))
577 fds[i].revents |= POLLOUT;
579 if (FD_ISSET(fds[i].fd, &exceptfds))
580 fds[i].revents |= POLLHUP;
587 int nanosleep(const struct timespec *rqtp, struct timespec *rmtp)
589 log_err("%s is not implemented\n", __func__);
594 DIR *opendir(const char *dirname)
596 log_err("%s is not implemented\n", __func__);
601 int closedir(DIR *dirp)
603 log_err("%s is not implemented\n", __func__);
608 struct dirent *readdir(DIR *dirp)
610 log_err("%s is not implemented\n", __func__);
617 log_err("%s is not implemented\n", __func__);
622 int inet_aton(char *addr)
624 log_err("%s is not implemented\n", __func__);
629 const char* inet_ntop(int af, const void *restrict src,
630 char *restrict dst, socklen_t size)
632 INT status = SOCKET_ERROR;
636 if (af != AF_INET && af != AF_INET6) {
637 errno = EAFNOSUPPORT;
641 WSAStartup(MAKEWORD(2,2), &wsd);
644 struct sockaddr_in si;
646 memset(&si, 0, sizeof(si));
648 memcpy(&si.sin_addr, src, sizeof(si.sin_addr));
649 status = WSAAddressToString((struct sockaddr*)&si, sizeof(si), NULL, dst, &len);
650 } else if (af == AF_INET6) {
651 struct sockaddr_in6 si6;
653 memset(&si6, 0, sizeof(si6));
654 si6.sin6_family = af;
655 memcpy(&si6.sin6_addr, src, sizeof(si6.sin6_addr));
656 status = WSAAddressToString((struct sockaddr*)&si6, sizeof(si6), NULL, dst, &len);
659 if (status != SOCKET_ERROR)
668 int inet_pton(int af, const char *restrict src, void *restrict dst)
670 INT status = SOCKET_ERROR;
674 if (af != AF_INET && af != AF_INET6) {
675 errno = EAFNOSUPPORT;
679 WSAStartup(MAKEWORD(2,2), &wsd);
682 struct sockaddr_in si;
683 INT len = sizeof(si);
684 memset(&si, 0, sizeof(si));
686 status = WSAStringToAddressA((char*)src, af, NULL, (struct sockaddr*)&si, &len);
687 if (status != SOCKET_ERROR)
688 memcpy(dst, &si.sin_addr, sizeof(si.sin_addr));
689 } else if (af == AF_INET6) {
690 struct sockaddr_in6 si6;
691 INT len = sizeof(si6);
692 memset(&si6, 0, sizeof(si6));
693 si6.sin6_family = af;
694 status = WSAStringToAddressA((char*)src, af, NULL, (struct sockaddr*)&si6, &len);
695 if (status != SOCKET_ERROR)
696 memcpy(dst, &si6.sin6_addr, sizeof(si6.sin6_addr));
699 if (status == SOCKET_ERROR) {