diff options
| -rw-r--r-- | libtcc.c | 22 |
1 files changed, 18 insertions, 4 deletions
@@ -1510,6 +1510,20 @@ LIBTCCAPI int tcc_add_symbol(TCCState *s, const char *name, const void *val) } +/* Windows stat* ( https://msdn.microsoft.com/en-us/library/14h5k7ff.aspx ): + * - st_gid, st_ino, st_uid: only valid on "unix" file systems (not FAT, NTFS, etc) + * - st_atime, st_ctime: not valid on FAT, valid on NTFS. + * - Other fields should be reasonably compatible (and S_ISDIR should work). + * + * BY_HANDLE_FILE_INFORMATION ( https://msdn.microsoft.com/en-us/library/windows/desktop/aa363788%28v=vs.85%29.aspx ): + * - File index (combined nFileIndexHigh and nFileIndexLow) _may_ change when the file is opened. + * - But on NTFS: it's guaranteed to be the same value until the file is deleted. + * - On windows server 2012 there's a 128b file id, and the 64b one via + * nFileIndex* is not guaranteed to be unique. + * + * - MS Docs suggest to that volume number with the file index could be used to + * check if two handles refer to the same file. + */ #ifndef _WIN32 typedef struct stat file_info_t; #else @@ -1524,11 +1538,11 @@ int get_file_info(const char *fname, file_info_t *out_info) int rv = 1; HANDLE h = CreateFile(fname, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL|FILE_FLAG_BACKUP_SEMANTICS, NULL); - if (h == INVALID_HANDLE_VALUE) - return rv; - rv = !GetFileInformationByHandle(h, out_info); - CloseHandle(h); + if (h != INVALID_HANDLE_VALUE) { + rv = !GetFileInformationByHandle(h, out_info); + CloseHandle(h); + } return rv; #endif } |