| /* This file contains functions which implement those POSIX and Linux functions |
| * that MinGW and Microsoft don't provide. The implementations contain just enough |
| * functionality to support fio. |
| */ |
| |
| #include <arpa/inet.h> |
| #include <netinet/in.h> |
| #include <windows.h> |
| #include <stddef.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <dirent.h> |
| #include <pthread.h> |
| #include <semaphore.h> |
| #include <sys/shm.h> |
| #include <sys/mman.h> |
| #include <sys/uio.h> |
| #include <sys/resource.h> |
| #include <sys/poll.h> |
| |
| #include "../os-windows.h" |
| |
| long sysconf(int name) |
| { |
| long long val = -1; |
| DWORD len; |
| SYSTEM_LOGICAL_PROCESSOR_INFORMATION processorInfo; |
| SYSTEM_INFO sysInfo; |
| MEMORYSTATUSEX status; |
| |
| switch (name) |
| { |
| case _SC_NPROCESSORS_ONLN: |
| len = sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION); |
| GetLogicalProcessorInformation(&processorInfo, &len); |
| val = len / sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION); |
| break; |
| |
| case _SC_PAGESIZE: |
| GetSystemInfo(&sysInfo); |
| val = sysInfo.dwPageSize; |
| break; |
| |
| case _SC_PHYS_PAGES: |
| status.dwLength = sizeof(status); |
| GlobalMemoryStatusEx(&status); |
| val = status.ullTotalPhys; |
| break; |
| default: |
| log_err("sysconf(%d) is not implemented\n", name); |
| break; |
| } |
| |
| return val; |
| } |
| |
| char *dl_error = NULL; |
| |
| int dlclose(void *handle) |
| { |
| return !FreeLibrary((HMODULE)handle); |
| } |
| |
| void *dlopen(const char *file, int mode) |
| { |
| HMODULE hMod; |
| |
| hMod = LoadLibrary(file); |
| if (hMod == INVALID_HANDLE_VALUE) |
| dl_error = (char*)"LoadLibrary failed"; |
| else |
| dl_error = NULL; |
| |
| return hMod; |
| } |
| |
| void *dlsym(void *handle, const char *name) |
| { |
| FARPROC fnPtr; |
| |
| fnPtr = GetProcAddress((HMODULE)handle, name); |
| if (fnPtr == NULL) |
| dl_error = (char*)"GetProcAddress failed"; |
| else |
| dl_error = NULL; |
| |
| return fnPtr; |
| } |
| |
| char *dlerror(void) |
| { |
| return dl_error; |
| } |
| |
| int gettimeofday(struct timeval *restrict tp, void *restrict tzp) |
| { |
| FILETIME fileTime; |
| unsigned long long unix_time, windows_time; |
| const time_t MILLISECONDS_BETWEEN_1601_AND_1970 = 11644473600000; |
| |
| /* Ignore the timezone parameter */ |
| (void)tzp; |
| |
| /* |
| * Windows time is stored as the number 100 ns intervals since January 1 1601. |
| * Conversion details from http://www.informit.com/articles/article.aspx?p=102236&seqNum=3 |
| * Its precision is 100 ns but accuracy is only one clock tick, or normally around 15 ms. |
| */ |
| GetSystemTimeAsFileTime(&fileTime); |
| windows_time = ((unsigned long long)fileTime.dwHighDateTime << 32) + fileTime.dwLowDateTime; |
| /* Divide by 10,000 to convert to ms and subtract the time between 1601 and 1970 */ |
| unix_time = (((windows_time)/10000) - MILLISECONDS_BETWEEN_1601_AND_1970); |
| /* unix_time is now the number of milliseconds since 1970 (the Unix epoch) */ |
| tp->tv_sec = unix_time / 1000; |
| tp->tv_usec = (unix_time % 1000) * 1000; |
| return 0; |
| } |
| |
| void syslog(int priority, const char *message, ... /* argument */) |
| { |
| log_err("%s is not implemented\n", __func__); |
| } |
| |
| int sigaction(int sig, const struct sigaction *act, |
| struct sigaction *oact) |
| { |
| int rc = 0; |
| void (*prev_handler)(int); |
| |
| prev_handler = signal(sig, act->sa_handler); |
| if (oact != NULL) |
| oact->sa_handler = prev_handler; |
| |
| if (prev_handler == SIG_ERR) |
| rc = -1; |
| |
| return rc; |
| } |
| |
| int lstat(const char * path, struct stat * buf) |
| { |
| return stat(path, buf); |
| } |
| |
| void *mmap(void *addr, size_t len, int prot, int flags, |
| int fildes, off_t off) |
| { |
| DWORD vaProt = 0; |
| void* allocAddr = NULL; |
| |
| if (prot & PROT_NONE) |
| vaProt |= PAGE_NOACCESS; |
| |
| if ((prot & PROT_READ) && !(prot & PROT_WRITE)) |
| vaProt |= PAGE_READONLY; |
| |
| if (prot & PROT_WRITE) |
| vaProt |= PAGE_READWRITE; |
| |
| if ((flags & MAP_ANON) | (flags & MAP_ANONYMOUS)) |
| { |
| allocAddr = VirtualAlloc(addr, len, MEM_COMMIT, vaProt); |
| } |
| |
| return allocAddr; |
| } |
| |
| int munmap(void *addr, size_t len) |
| { |
| return !VirtualFree(addr, 0, MEM_RELEASE); |
| } |
| |
| int fork(void) |
| { |
| log_err("%s is not implemented\n", __func__); |
| errno = ENOSYS; |
| return (-1); |
| } |
| |
| pid_t setsid(void) |
| { |
| log_err("%s is not implemented\n", __func__); |
| errno = ENOSYS; |
| return (-1); |
| } |
| |
| void openlog(const char *ident, int logopt, int facility) |
| { |
| log_err("%s is not implemented\n", __func__); |
| } |
| |
| void closelog(void) |
| { |
| log_err("%s is not implemented\n", __func__); |
| } |
| |
| int kill(pid_t pid, int sig) |
| { |
| errno = ESRCH; |
| return (-1); |
| } |
| |
| /* |
| * This is assumed to be used only by the network code, |
| * and so doesn't try and handle any of the other cases |
| */ |
| int fcntl(int fildes, int cmd, ...) |
| { |
| /* |
| * non-blocking mode doesn't work the same as in BSD sockets, |
| * so ignore it. |
| */ |
| #if 0 |
| va_list ap; |
| int val, opt, status; |
| |
| if (cmd == F_GETFL) |
| return 0; |
| else if (cmd != F_SETFL) { |
| errno = EINVAL; |
| return (-1); |
| } |
| |
| va_start(ap, 1); |
| |
| opt = va_arg(ap, int); |
| if (opt & O_NONBLOCK) |
| val = 1; |
| else |
| val = 0; |
| |
| status = ioctlsocket((SOCKET)fildes, opt, &val); |
| |
| if (status == SOCKET_ERROR) { |
| errno = EINVAL; |
| val = -1; |
| } |
| |
| va_end(ap); |
| |
| return val; |
| #endif |
| return 0; |
| } |
| |
| /* |
| * Get the value of a local clock source. |
| * This implementation supports 2 clocks: CLOCK_MONOTONIC provides high-accuracy |
| * relative time, while CLOCK_REALTIME provides a low-accuracy wall time. |
| */ |
| int clock_gettime(clockid_t clock_id, struct timespec *tp) |
| { |
| int rc = 0; |
| |
| if (clock_id == CLOCK_MONOTONIC) |
| { |
| static LARGE_INTEGER freq = {{0,0}}; |
| LARGE_INTEGER counts; |
| |
| QueryPerformanceCounter(&counts); |
| if (freq.QuadPart == 0) |
| QueryPerformanceFrequency(&freq); |
| |
| tp->tv_sec = counts.QuadPart / freq.QuadPart; |
| /* Get the difference between the number of ns stored |
| * in 'tv_sec' and that stored in 'counts' */ |
| unsigned long long t = tp->tv_sec * freq.QuadPart; |
| t = counts.QuadPart - t; |
| /* 't' now contains the number of cycles since the last second. |
| * We want the number of nanoseconds, so multiply out by 1,000,000,000 |
| * and then divide by the frequency. */ |
| t *= 1000000000; |
| tp->tv_nsec = t / freq.QuadPart; |
| } |
| else if (clock_id == CLOCK_REALTIME) |
| { |
| /* clock_gettime(CLOCK_REALTIME,...) is just an alias for gettimeofday with a |
| * higher-precision field. */ |
| struct timeval tv; |
| gettimeofday(&tv, NULL); |
| tp->tv_sec = tv.tv_sec; |
| tp->tv_nsec = tv.tv_usec * 1000; |
| } else { |
| errno = EINVAL; |
| rc = -1; |
| } |
| |
| return rc; |
| } |
| |
| int mlock(const void * addr, size_t len) |
| { |
| return !VirtualLock((LPVOID)addr, len); |
| } |
| |
| int munlock(const void * addr, size_t len) |
| { |
| return !VirtualUnlock((LPVOID)addr, len); |
| } |
| |
| pid_t waitpid(pid_t pid, int *stat_loc, int options) |
| { |
| log_err("%s is not implemented\n", __func__); |
| errno = ENOSYS; |
| return -1; |
| } |
| |
| int usleep(useconds_t useconds) |
| { |
| Sleep(useconds / 1000); |
| return 0; |
| } |
| |
| char *basename(char *path) |
| { |
| static char name[MAX_PATH]; |
| int i; |
| |
| if (path == NULL || strlen(path) == 0) |
| return (char*)"."; |
| |
| i = strlen(path) - 1; |
| |
| while (name[i] != '\\' && name[i] != '/' && i >= 0) |
| i--; |
| |
| strcpy(name, path + i); |
| |
| return name; |
| } |
| |
| int posix_fallocate(int fd, off_t offset, off_t len) |
| { |
| log_err("%s is not implemented\n", __func__); |
| errno = ENOSYS; |
| return (-1); |
| } |
| |
| int ftruncate(int fildes, off_t length) |
| { |
| BOOL bSuccess; |
| int old_pos = tell(fildes); |
| lseek(fildes, length, SEEK_SET); |
| HANDLE hFile = (HANDLE)_get_osfhandle(fildes); |
| bSuccess = SetEndOfFile(hFile); |
| lseek(fildes, old_pos, SEEK_SET); |
| return !bSuccess; |
| } |
| |
| int fsync(int fildes) |
| { |
| HANDLE hFile = (HANDLE)_get_osfhandle(fildes); |
| return !FlushFileBuffers(hFile); |
| } |
| |
| int nFileMappings = 0; |
| HANDLE fileMappings[1024]; |
| |
| int shmget(key_t key, size_t size, int shmflg) |
| { |
| int mapid = -1; |
| HANDLE hMapping = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, (PAGE_EXECUTE_READWRITE | SEC_RESERVE), size >> 32, size & 0xFFFFFFFF, NULL); |
| if (hMapping != NULL) { |
| fileMappings[nFileMappings] = hMapping; |
| mapid = nFileMappings; |
| nFileMappings++; |
| } else { |
| errno = ENOSYS; |
| } |
| |
| return mapid; |
| } |
| |
| void *shmat(int shmid, const void *shmaddr, int shmflg) |
| { |
| void* mapAddr; |
| MEMORY_BASIC_INFORMATION memInfo; |
| mapAddr = MapViewOfFile(fileMappings[shmid], FILE_MAP_ALL_ACCESS, 0, 0, 0); |
| VirtualQuery(mapAddr, &memInfo, sizeof(memInfo)); |
| mapAddr = VirtualAlloc(mapAddr, memInfo.RegionSize, MEM_COMMIT, PAGE_READWRITE); |
| return mapAddr; |
| } |
| |
| int shmdt(const void *shmaddr) |
| { |
| return !UnmapViewOfFile(shmaddr); |
| } |
| |
| int shmctl(int shmid, int cmd, struct shmid_ds *buf) |
| { |
| if (cmd == IPC_RMID) { |
| fileMappings[shmid] = INVALID_HANDLE_VALUE; |
| return 0; |
| } else { |
| log_err("%s is not implemented\n", __func__); |
| } |
| return (-1); |
| } |
| |
| int setuid(uid_t uid) |
| { |
| log_err("%s is not implemented\n", __func__); |
| errno = ENOSYS; |
| return (-1); |
| } |
| |
| int setgid(gid_t gid) |
| { |
| log_err("%s is not implemented\n", __func__); |
| errno = ENOSYS; |
| return (-1); |
| } |
| |
| int nice(int incr) |
| { |
| if (incr != 0) { |
| errno = EINVAL; |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| int getrusage(int who, struct rusage *r_usage) |
| { |
| const time_t SECONDS_BETWEEN_1601_AND_1970 = 11644473600; |
| FILETIME cTime, eTime, kTime, uTime; |
| time_t time; |
| |
| memset(r_usage, 0, sizeof(*r_usage)); |
| |
| HANDLE hProcess = GetCurrentProcess(); |
| GetProcessTimes(hProcess, &cTime, &eTime, &kTime, &uTime); |
| time = ((unsigned long long)uTime.dwHighDateTime << 32) + uTime.dwLowDateTime; |
| /* Divide by 10,000,000 to get the number of seconds and move the epoch from |
| * 1601 to 1970 */ |
| time = (time_t)(((time)/10000000) - SECONDS_BETWEEN_1601_AND_1970); |
| r_usage->ru_utime.tv_sec = time; |
| /* getrusage() doesn't care about anything other than seconds, so set tv_usec to 0 */ |
| r_usage->ru_utime.tv_usec = 0; |
| time = ((unsigned long long)kTime.dwHighDateTime << 32) + kTime.dwLowDateTime; |
| /* Divide by 10,000,000 to get the number of seconds and move the epoch from |
| * 1601 to 1970 */ |
| time = (time_t)(((time)/10000000) - SECONDS_BETWEEN_1601_AND_1970); |
| r_usage->ru_stime.tv_sec = time; |
| r_usage->ru_stime.tv_usec = 0; |
| return 0; |
| } |
| |
| int posix_madvise(void *addr, size_t len, int advice) |
| { |
| log_err("%s is not implemented\n", __func__); |
| return ENOSYS; |
| } |
| |
| /* Windows doesn't support advice for memory pages. Just ignore it. */ |
| int msync(void *addr, size_t len, int flags) |
| { |
| log_err("%s is not implemented\n", __func__); |
| errno = ENOSYS; |
| return -1; |
| } |
| |
| int fdatasync(int fildes) |
| { |
| return fsync(fildes); |
| } |
| |
| ssize_t pwrite(int fildes, const void *buf, size_t nbyte, |
| off_t offset) |
| { |
| long pos = tell(fildes); |
| ssize_t len = write(fildes, buf, nbyte); |
| lseek(fildes, pos, SEEK_SET); |
| return len; |
| } |
| |
| ssize_t pread(int fildes, void *buf, size_t nbyte, off_t offset) |
| { |
| long pos = tell(fildes); |
| ssize_t len = read(fildes, buf, nbyte); |
| lseek(fildes, pos, SEEK_SET); |
| return len; |
| } |
| |
| ssize_t readv(int fildes, const struct iovec *iov, int iovcnt) |
| { |
| log_err("%s is not implemented\n", __func__); |
| errno = ENOSYS; |
| return (-1); |
| } |
| |
| ssize_t writev(int fildes, const struct iovec *iov, int iovcnt) |
| { |
| log_err("%s is not implemented\n", __func__); |
| errno = ENOSYS; |
| return (-1); |
| } |
| |
| long long strtoll(const char *restrict str, char **restrict endptr, |
| int base) |
| { |
| return _strtoi64(str, endptr, base); |
| } |
| |
| char *strsep(char **stringp, const char *delim) |
| { |
| char *orig = *stringp; |
| BOOL gotMatch = FALSE; |
| int i = 0; |
| int j = 0; |
| |
| if (*stringp == NULL) |
| return NULL; |
| |
| while ((*stringp)[i] != '\0') { |
| j = 0; |
| while (delim[j] != '\0') { |
| if ((*stringp)[i] == delim[j]) { |
| gotMatch = TRUE; |
| (*stringp)[i] = '\0'; |
| *stringp = *stringp + i + 1; |
| break; |
| } |
| j++; |
| } |
| if (gotMatch) |
| break; |
| |
| i++; |
| } |
| |
| if (!gotMatch) |
| *stringp = NULL; |
| |
| return orig; |
| } |
| |
| int poll(struct pollfd fds[], nfds_t nfds, int timeout) |
| { |
| struct timeval tv; |
| struct timeval *to = NULL; |
| fd_set readfds, writefds, exceptfds; |
| int i; |
| int rc; |
| |
| if (timeout != -1) |
| to = &tv; |
| |
| to->tv_sec = timeout / 1000; |
| to->tv_usec = (timeout % 1000) * 1000; |
| |
| FD_ZERO(&readfds); |
| FD_ZERO(&writefds); |
| FD_ZERO(&exceptfds); |
| |
| for (i = 0; i < nfds; i++) |
| { |
| if (fds[i].fd < 0) { |
| fds[i].revents = 0; |
| continue; |
| } |
| |
| if (fds[i].events & POLLIN) |
| FD_SET(fds[i].fd, &readfds); |
| |
| if (fds[i].events & POLLOUT) |
| FD_SET(fds[i].fd, &writefds); |
| |
| FD_SET(fds[i].fd, &exceptfds); |
| } |
| |
| rc = select(nfds, &readfds, &writefds, &exceptfds, to); |
| |
| if (rc != SOCKET_ERROR) { |
| for (i = 0; i < nfds; i++) |
| { |
| if (fds[i].fd < 0) { |
| continue; |
| } |
| |
| if ((fds[i].events & POLLIN) && FD_ISSET(fds[i].fd, &readfds)) |
| fds[i].revents |= POLLIN; |
| |
| if ((fds[i].events & POLLOUT) && FD_ISSET(fds[i].fd, &writefds)) |
| fds[i].revents |= POLLOUT; |
| |
| if (FD_ISSET(fds[i].fd, &exceptfds)) |
| fds[i].revents |= POLLHUP; |
| } |
| } |
| |
| return rc; |
| } |
| |
| int nanosleep(const struct timespec *rqtp, struct timespec *rmtp) |
| { |
| log_err("%s is not implemented\n", __func__); |
| errno = ENOSYS; |
| return -1; |
| } |
| |
| DIR *opendir(const char *dirname) |
| { |
| log_err("%s is not implemented\n", __func__); |
| errno = ENOSYS; |
| return NULL; |
| } |
| |
| int closedir(DIR *dirp) |
| { |
| log_err("%s is not implemented\n", __func__); |
| errno = ENOSYS; |
| return -1; |
| } |
| |
| struct dirent *readdir(DIR *dirp) |
| { |
| log_err("%s is not implemented\n", __func__); |
| errno = ENOSYS; |
| return NULL; |
| } |
| |
| uid_t geteuid(void) |
| { |
| log_err("%s is not implemented\n", __func__); |
| errno = ENOSYS; |
| return -1; |
| } |
| |
| int inet_aton(char *addr) |
| { |
| log_err("%s is not implemented\n", __func__); |
| errno = ENOSYS; |
| return 0; |
| } |
| |
| const char* inet_ntop(int af, const void *restrict src, |
| char *restrict dst, socklen_t size) |
| { |
| INT status = SOCKET_ERROR; |
| WSADATA wsd; |
| char *ret = NULL; |
| |
| if (af != AF_INET && af != AF_INET6) { |
| errno = EAFNOSUPPORT; |
| return NULL; |
| } |
| |
| WSAStartup(MAKEWORD(2,2), &wsd); |
| |
| if (af == AF_INET) { |
| struct sockaddr_in si; |
| DWORD len = size; |
| memset(&si, 0, sizeof(si)); |
| si.sin_family = af; |
| memcpy(&si.sin_addr, src, sizeof(si.sin_addr)); |
| status = WSAAddressToString((struct sockaddr*)&si, sizeof(si), NULL, dst, &len); |
| } else if (af == AF_INET6) { |
| struct sockaddr_in6 si6; |
| DWORD len = size; |
| memset(&si6, 0, sizeof(si6)); |
| si6.sin6_family = af; |
| memcpy(&si6.sin6_addr, src, sizeof(si6.sin6_addr)); |
| status = WSAAddressToString((struct sockaddr*)&si6, sizeof(si6), NULL, dst, &len); |
| } |
| |
| if (status != SOCKET_ERROR) |
| ret = dst; |
| else |
| errno = ENOSPC; |
| |
| WSACleanup(); |
| return ret; |
| } |
| |
| int inet_pton(int af, const char *restrict src, void *restrict dst) |
| { |
| INT status = SOCKET_ERROR; |
| WSADATA wsd; |
| int ret = 1; |
| |
| if (af != AF_INET && af != AF_INET6) { |
| errno = EAFNOSUPPORT; |
| return -1; |
| } |
| |
| WSAStartup(MAKEWORD(2,2), &wsd); |
| |
| if (af == AF_INET) { |
| struct sockaddr_in si; |
| INT len = sizeof(si); |
| memset(&si, 0, sizeof(si)); |
| si.sin_family = af; |
| status = WSAStringToAddressA((char*)src, af, NULL, (struct sockaddr*)&si, &len); |
| if (status != SOCKET_ERROR) |
| memcpy(dst, &si.sin_addr, sizeof(si.sin_addr)); |
| } else if (af == AF_INET6) { |
| struct sockaddr_in6 si6; |
| INT len = sizeof(si6); |
| memset(&si6, 0, sizeof(si6)); |
| si6.sin6_family = af; |
| status = WSAStringToAddressA((char*)src, af, NULL, (struct sockaddr*)&si6, &len); |
| if (status != SOCKET_ERROR) |
| memcpy(dst, &si6.sin6_addr, sizeof(si6.sin6_addr)); |
| } |
| |
| if (status == SOCKET_ERROR) { |
| errno = ENOSPC; |
| ret = 0; |
| } |
| |
| WSACleanup(); |
| |
| return ret; |
| } |