*/
static int do_lstat(int follow, const char *file_name, struct stat *buf)
{
+ int err;
WIN32_FILE_ATTRIBUTE_DATA fdata;
- if (!(errno = get_file_attr(file_name, &fdata))) {
+ if (!(err = get_file_attr(file_name, &fdata))) {
buf->st_ino = 0;
buf->st_gid = 0;
buf->st_uid = 0;
}
return 0;
}
+ errno = err;
return -1;
}
return 0;
}
-int poll(struct pollfd *ufds, unsigned int nfds, int timeout)
-{
- int i, pending;
-
- if (timeout >= 0) {
- if (nfds == 0) {
- Sleep(timeout);
- return 0;
- }
- return errno = EINVAL, error("poll timeout not supported");
- }
-
- /* When there is only one fd to wait for, then we pretend that
- * input is available and let the actual wait happen when the
- * caller invokes read().
- */
- if (nfds == 1) {
- if (!(ufds[0].events & POLLIN))
- return errno = EINVAL, error("POLLIN not set");
- ufds[0].revents = POLLIN;
- return 0;
- }
-
-repeat:
- pending = 0;
- for (i = 0; i < nfds; i++) {
- DWORD avail = 0;
- HANDLE h = (HANDLE) _get_osfhandle(ufds[i].fd);
- if (h == INVALID_HANDLE_VALUE)
- return -1; /* errno was set */
-
- if (!(ufds[i].events & POLLIN))
- return errno = EINVAL, error("POLLIN not set");
-
- /* this emulation works only for pipes */
- if (!PeekNamedPipe(h, NULL, 0, NULL, &avail, NULL)) {
- int err = GetLastError();
- if (err == ERROR_BROKEN_PIPE) {
- ufds[i].revents = POLLHUP;
- pending++;
- } else {
- errno = EINVAL;
- return error("PeekNamedPipe failed,"
- " GetLastError: %u", err);
- }
- } else if (avail) {
- ufds[i].revents = POLLIN;
- pending++;
- } else
- ufds[i].revents = 0;
- }
- if (!pending) {
- /* The only times that we spin here is when the process
- * that is connected through the pipes is waiting for
- * its own input data to become available. But since
- * the process (pack-objects) is itself CPU intensive,
- * it will happily pick up the time slice that we are
- * relinquishing here.
- */
- Sleep(0);
- goto repeat;
- }
- return 0;
-}
-
struct tm *gmtime_r(const time_t *timep, struct tm *result)
{
/* gmtime() in MSVCRT.DLL is thread-safe, but not reentrant */
errno = EINVAL;
return -1;
}
-
-#ifndef NO_MINGW_REPLACE_READDIR
-/* MinGW readdir implementation to avoid extra lstats for Git */
-struct mingw_DIR
-{
- struct _finddata_t dd_dta; /* disk transfer area for this dir */
- struct mingw_dirent dd_dir; /* Our own implementation, including d_type */
- long dd_handle; /* _findnext handle */
- int dd_stat; /* 0 = next entry to read is first entry, -1 = off the end, positive = 0 based index of next entry */
- char dd_name[1]; /* given path for dir with search pattern (struct is extended) */
-};
-
-struct dirent *mingw_readdir(DIR *dir)
-{
- WIN32_FIND_DATAA buf;
- HANDLE handle;
- struct mingw_DIR *mdir = (struct mingw_DIR*)dir;
-
- if (!dir->dd_handle) {
- errno = EBADF; /* No set_errno for mingw */
- return NULL;
- }
-
- if (dir->dd_handle == (long)INVALID_HANDLE_VALUE && dir->dd_stat == 0)
- {
- DWORD lasterr;
- handle = FindFirstFileA(dir->dd_name, &buf);
- lasterr = GetLastError();
- dir->dd_handle = (long)handle;
- if (handle == INVALID_HANDLE_VALUE && (lasterr != ERROR_NO_MORE_FILES)) {
- errno = err_win_to_posix(lasterr);
- return NULL;
- }
- } else if (dir->dd_handle == (long)INVALID_HANDLE_VALUE) {
- return NULL;
- } else if (!FindNextFileA((HANDLE)dir->dd_handle, &buf)) {
- DWORD lasterr = GetLastError();
- FindClose((HANDLE)dir->dd_handle);
- dir->dd_handle = (long)INVALID_HANDLE_VALUE;
- /* POSIX says you shouldn't set errno when readdir can't
- find any more files; so, if another error we leave it set. */
- if (lasterr != ERROR_NO_MORE_FILES)
- errno = err_win_to_posix(lasterr);
- return NULL;
- }
-
- /* We get here if `buf' contains valid data. */
- strcpy(dir->dd_dir.d_name, buf.cFileName);
- ++dir->dd_stat;
-
- /* Set file type, based on WIN32_FIND_DATA */
- mdir->dd_dir.d_type = 0;
- if (buf.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
- mdir->dd_dir.d_type |= DT_DIR;
- else
- mdir->dd_dir.d_type |= DT_REG;
-
- return (struct dirent*)&dir->dd_dir;
-}
-#endif // !NO_MINGW_REPLACE_READDIR