foreign import ccall unsafe "HsBase.h read"
c_read :: CInt -> Ptr CChar -> CSize -> IO CSsize
-foreign import ccall unsafe "dirUtils.h __hscore_renameFile"
- c_rename :: CString -> CString -> IO CInt
-
foreign import ccall unsafe "HsBase.h rewinddir"
c_rewinddir :: Ptr CDir -> IO ()
}
#endif
}
-
-/*
- * Function: __hscore_renameFile()
- *
- * Provide Haskell98's semantics for renaming files and directories.
- * It mirrors that of POSIX.1's behaviour for rename() by overwriting
- * the target if it exists (the MS CRT implementation of rename() returns
- * an error
- *
- */
-int
-__hscore_renameFile( char *src, char *dest)
-{
-#if defined(_MSC_VER) || defined(__MINGW32__) || defined(_WIN32)
- static int forNT = -1;
-
- /* ToDo: propagate error codes back */
- if (MoveFileA(src, dest)) {
- return 0;
- } else {
- ;
- }
-
- /* Failed...it could be because the target already existed. */
- if ( !GetFileAttributes(dest) ) {
- /* No, it's not there - just fail. */
- maperrno();
- return (-1);
- }
-
- if (forNT == -1) {
- OSVERSIONINFO ovi;
- ovi.dwOSVersionInfoSize = sizeof(ovi);
- if ( !GetVersionEx(&ovi) ) {
- maperrno();
- return (-1);
- }
- forNT = ((ovi.dwPlatformId & VER_PLATFORM_WIN32_NT) != 0);
- }
-
- if (forNT) {
- /* Easy, go for MoveFileEx() */
- if ( MoveFileExA(src, dest, MOVEFILE_REPLACE_EXISTING) ) {
- return 0;
- } else {
- maperrno();
- return (-1);
- }
- }
-
- /* No MoveFileEx() for Win9x, try deleting the target. */
- /* Similarly, if the MoveFile*() ops didn't work out under NT */
- if (DeleteFileA(dest)) {
- if (MoveFileA(src,dest)) {
- return 0;
- } else {
- maperrno();
- return (-1);
- }
- } else {
- maperrno();
- return (-1);
- }
-#else
- return rename(src,dest);
-#endif
-}
-