--- /dev/null
+/* 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)
+{
+ errno = ENOSYS;
+ return (-1);
+}
+
+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;
+}
projects / fio.git / commitdiff