2 * file-io.c: File IO internal calls
5 * Dick Porter (dick@ximian.com)
7 * (C) 2001 Ximian, Inc.
17 #include <mono/metadata/object.h>
18 #include <mono/io-layer/io-layer.h>
19 #include <mono/metadata/file-io.h>
20 #include <mono/metadata/exception.h>
21 #include <mono/metadata/appdomain.h>
22 #include <mono/metadata/marshal.h>
26 /* conversion functions */
28 static guint32 convert_mode(MonoFileMode mono_mode)
33 case FileMode_CreateNew:
42 case FileMode_OpenOrCreate:
45 case FileMode_Truncate:
46 mode=TRUNCATE_EXISTING;
52 g_warning("System.IO.FileMode has unknown value 0x%x",
61 static guint32 convert_access(MonoFileAccess mono_access)
69 case FileAccess_Write:
72 case FileAccess_ReadWrite:
73 access=GENERIC_READ|GENERIC_WRITE;
76 g_warning("System.IO.FileAccess has unknown value 0x%x",
85 static guint32 convert_share(MonoFileShare mono_share)
94 share=FILE_SHARE_READ;
97 share=FILE_SHARE_WRITE;
99 case FileShare_ReadWrite:
100 share=FILE_SHARE_READ|FILE_SHARE_WRITE;
103 g_warning("System.IO.FileShare has unknown value 0x%x",
113 static guint32 convert_stdhandle(guint32 fd)
119 stdhandle=STD_INPUT_HANDLE;
122 stdhandle=STD_OUTPUT_HANDLE;
125 stdhandle=STD_ERROR_HANDLE;
128 g_warning("unknown standard file descriptor %d", fd);
129 stdhandle=STD_INPUT_HANDLE;
136 static guint32 convert_seekorigin(MonoSeekOrigin origin)
141 case SeekOrigin_Begin:
142 w32origin=FILE_BEGIN;
144 case SeekOrigin_Current:
145 w32origin=FILE_CURRENT;
151 g_warning("System.IO.SeekOrigin has unknown value 0x%x",
154 w32origin=FILE_CURRENT;
160 static gint64 convert_filetime (const FILETIME *filetime)
162 guint64 ticks = filetime->dwHighDateTime;
164 ticks += filetime->dwLowDateTime;
165 return (gint64)ticks;
168 static void convert_win32_file_attribute_data (const WIN32_FILE_ATTRIBUTE_DATA *data, const gunichar2 *name, MonoIOStat *stat)
172 stat->attributes = data->dwFileAttributes;
173 stat->creation_time = convert_filetime (&data->ftCreationTime);
174 stat->last_access_time = convert_filetime (&data->ftLastAccessTime);
175 stat->last_write_time = convert_filetime (&data->ftLastWriteTime);
176 stat->length = ((gint64)data->nFileSizeHigh << 32) | data->nFileSizeLow;
182 stat->name = mono_string_new_utf16 (mono_domain_get (), name, len);
185 /* Managed file attributes have nearly but not quite the same values
186 * as the w32 equivalents.
188 static guint32 convert_attrs(MonoFileAttributes attrs)
190 if(attrs & FileAttributes_Encrypted) {
191 attrs |= FILE_ATTRIBUTE_ENCRYPTED;
197 /* System.IO.MonoIO internal calls */
200 ves_icall_System_IO_MonoIO_CreateDirectory (MonoString *path, gint32 *error)
206 *error=ERROR_SUCCESS;
208 ret=CreateDirectory (mono_string_chars (path), NULL);
210 *error=GetLastError ();
217 ves_icall_System_IO_MonoIO_RemoveDirectory (MonoString *path, gint32 *error)
223 *error=ERROR_SUCCESS;
225 ret=RemoveDirectory (mono_string_chars (path));
227 *error=GetLastError ();
234 ves_icall_System_IO_MonoIO_FindFirstFile (MonoString *path, MonoIOStat *stat,
237 WIN32_FIND_DATA data;
243 *error=ERROR_SUCCESS;
245 result = FindFirstFile (mono_string_chars (path), &data);
247 /* note: WIN32_FIND_DATA is an extension of WIN32_FILE_ATTRIBUTE_DATA */
248 while (result != INVALID_HANDLE_VALUE && r) {
249 if ((data.cFileName [0] == '.' && data.cFileName [1] == 0) ||
250 (data.cFileName [0] == '.' && data.cFileName [1] == '.' && data.cFileName [2] == 0)) {
251 r = FindNextFile (result, &data);
253 convert_win32_file_attribute_data ((const WIN32_FILE_ATTRIBUTE_DATA *)&data,
254 &data.cFileName [0], stat);
259 if (result == INVALID_HANDLE_VALUE) {
260 *error=GetLastError ();
264 /* No more files were found, after we discarded . and .. */
266 result = INVALID_HANDLE_VALUE;
267 *error = ERROR_NO_MORE_FILES;
274 ves_icall_System_IO_MonoIO_FindNextFile (HANDLE find, MonoIOStat *stat,
277 WIN32_FIND_DATA data;
282 *error=ERROR_SUCCESS;
284 result = FindNextFile (find, &data);
285 while (result != FALSE) {
286 if ((data.cFileName [0] == '.' && data.cFileName [1] == 0) ||
287 (data.cFileName [0] == '.' && data.cFileName [1] == '.' && data.cFileName [2] == 0)) {
288 result = FindNextFile (find, &data);
290 convert_win32_file_attribute_data ((const WIN32_FILE_ATTRIBUTE_DATA *)&data,
291 &data.cFileName [0], stat);
296 if (result == FALSE) {
297 *error=GetLastError ();
304 ves_icall_System_IO_MonoIO_FindClose (HANDLE find, gint32 *error)
310 *error=ERROR_SUCCESS;
312 ret=FindClose (find);
314 *error=GetLastError ();
321 ves_icall_System_IO_MonoIO_GetCurrentDirectory (gint32 *error)
330 buf = g_new (gunichar2, len);
332 *error=ERROR_SUCCESS;
335 if (GetCurrentDirectory (len, buf) > 0) {
340 result = mono_string_new_utf16 (mono_domain_get (), buf, len);
342 *error=GetLastError ();
350 ves_icall_System_IO_MonoIO_SetCurrentDirectory (MonoString *path,
357 *error=ERROR_SUCCESS;
359 ret=SetCurrentDirectory (mono_string_chars (path));
361 *error=GetLastError ();
368 ves_icall_System_IO_MonoIO_MoveFile (MonoString *path, MonoString *dest,
375 *error=ERROR_SUCCESS;
377 ret=MoveFile (mono_string_chars (path), mono_string_chars (dest));
379 *error=GetLastError ();
386 ves_icall_System_IO_MonoIO_CopyFile (MonoString *path, MonoString *dest,
387 MonoBoolean overwrite, gint32 *error)
393 *error=ERROR_SUCCESS;
395 ret=CopyFile (mono_string_chars (path), mono_string_chars (dest), !overwrite);
397 *error=GetLastError ();
404 ves_icall_System_IO_MonoIO_DeleteFile (MonoString *path, gint32 *error)
410 *error=ERROR_SUCCESS;
412 ret=DeleteFile (mono_string_chars (path));
414 *error=GetLastError ();
421 ves_icall_System_IO_MonoIO_GetFileAttributes (MonoString *path, gint32 *error)
427 *error=ERROR_SUCCESS;
429 ret=GetFileAttributes (mono_string_chars (path));
432 * The definition of INVALID_FILE_ATTRIBUTES in the cygwin win32
433 * headers is wrong, hence this temporary workaround.
435 * http://cygwin.com/ml/cygwin/2003-09/msg01771.html
438 /* if(ret==INVALID_FILE_ATTRIBUTES) { */
439 *error=GetLastError ();
446 ves_icall_System_IO_MonoIO_SetFileAttributes (MonoString *path, gint32 attrs,
453 *error=ERROR_SUCCESS;
455 ret=SetFileAttributes (mono_string_chars (path),
456 convert_attrs (attrs));
458 *error=GetLastError ();
465 ves_icall_System_IO_MonoIO_GetFileType (HANDLE handle, gint32 *error)
471 *error=ERROR_SUCCESS;
473 ret=GetFileType (handle);
474 if(ret==FILE_TYPE_UNKNOWN) {
475 /* Not necessarily an error, but the caller will have
476 * to decide based on the error value.
478 *error=GetLastError ();
485 ves_icall_System_IO_MonoIO_GetFileStat (MonoString *path, MonoIOStat *stat,
489 WIN32_FILE_ATTRIBUTE_DATA data;
493 *error=ERROR_SUCCESS;
495 result = GetFileAttributesEx (mono_string_chars (path), GetFileExInfoStandard, &data);
498 convert_win32_file_attribute_data (&data,
499 mono_string_chars (path),
502 *error=GetLastError ();
509 ves_icall_System_IO_MonoIO_Open (MonoString *filename, gint32 mode,
510 gint32 access_mode, gint32 share,
511 MonoBoolean async, gint32 *error)
517 *error=ERROR_SUCCESS;
519 ret=CreateFile (mono_string_chars (filename),
520 convert_access (access_mode), convert_share (share),
521 NULL, convert_mode (mode),
522 FILE_ATTRIBUTE_NORMAL | ((async) ? FILE_FLAG_OVERLAPPED : 0),
524 if(ret==INVALID_HANDLE_VALUE) {
525 *error=GetLastError ();
532 ves_icall_System_IO_MonoIO_Close (HANDLE handle, gint32 *error)
538 *error=ERROR_SUCCESS;
540 ret=CloseHandle (handle);
542 *error=GetLastError ();
549 ves_icall_System_IO_MonoIO_Read (HANDLE handle, MonoArray *dest,
550 gint32 dest_offset, gint32 count,
559 *error=ERROR_SUCCESS;
561 if (dest_offset + count > mono_array_length (dest))
564 buffer = mono_array_addr (dest, guchar, dest_offset);
565 result = ReadFile (handle, buffer, count, &n, NULL);
568 *error=GetLastError ();
576 ves_icall_System_IO_MonoIO_Write (HANDLE handle, MonoArray *src,
577 gint32 src_offset, gint32 count,
586 *error=ERROR_SUCCESS;
588 if (src_offset + count > mono_array_length (src))
591 buffer = mono_array_addr (src, guchar, src_offset);
592 result = WriteFile (handle, buffer, count, &n, NULL);
595 *error=GetLastError ();
603 ves_icall_System_IO_MonoIO_Seek (HANDLE handle, gint64 offset, gint32 origin,
610 *error=ERROR_SUCCESS;
612 offset_hi = offset >> 32;
613 offset = SetFilePointer (handle, offset & 0xFFFFFFFF, &offset_hi,
614 convert_seekorigin (origin));
616 if(offset==INVALID_SET_FILE_POINTER) {
617 *error=GetLastError ();
620 return offset | ((gint64)offset_hi << 32);
624 ves_icall_System_IO_MonoIO_Flush (HANDLE handle, gint32 *error)
630 *error=ERROR_SUCCESS;
632 ret=FlushFileBuffers (handle);
634 *error=GetLastError ();
641 ves_icall_System_IO_MonoIO_GetLength (HANDLE handle, gint32 *error)
648 *error=ERROR_SUCCESS;
650 length = GetFileSize (handle, &length_hi);
651 if(length==INVALID_FILE_SIZE) {
652 *error=GetLastError ();
655 return length | ((gint64)length_hi << 32);
659 ves_icall_System_IO_MonoIO_SetLength (HANDLE handle, gint64 length,
662 gint64 offset, offset_set;
669 *error=ERROR_SUCCESS;
671 /* save file pointer */
674 offset = SetFilePointer (handle, 0, &offset_hi, FILE_CURRENT);
675 if(offset==INVALID_SET_FILE_POINTER) {
676 *error=GetLastError ();
680 /* extend or truncate */
682 length_hi = length >> 32;
683 offset_set=SetFilePointer (handle, length & 0xFFFFFFFF, &length_hi,
685 if(offset_set==INVALID_SET_FILE_POINTER) {
686 *error=GetLastError ();
690 result = SetEndOfFile (handle);
692 *error=GetLastError ();
696 /* restore file pointer */
698 offset_set=SetFilePointer (handle, offset & 0xFFFFFFFF, &offset_hi,
700 if(offset_set==INVALID_SET_FILE_POINTER) {
701 *error=GetLastError ();
709 ves_icall_System_IO_MonoIO_SetFileTime (HANDLE handle, gint64 creation_time,
710 gint64 last_access_time,
711 gint64 last_write_time, gint32 *error)
714 const FILETIME *creation_filetime;
715 const FILETIME *last_access_filetime;
716 const FILETIME *last_write_filetime;
720 *error=ERROR_SUCCESS;
722 if (creation_time < 0)
723 creation_filetime = NULL;
725 creation_filetime = (FILETIME *)&creation_time;
727 if (last_access_time < 0)
728 last_access_filetime = NULL;
730 last_access_filetime = (FILETIME *)&last_access_time;
732 if (last_write_time < 0)
733 last_write_filetime = NULL;
735 last_write_filetime = (FILETIME *)&last_write_time;
737 ret=SetFileTime (handle, creation_filetime, last_access_filetime, last_write_filetime);
739 *error=GetLastError ();
746 ves_icall_System_IO_MonoIO_get_ConsoleOutput ()
750 return GetStdHandle (STD_OUTPUT_HANDLE);
754 ves_icall_System_IO_MonoIO_get_ConsoleInput ()
758 return GetStdHandle (STD_INPUT_HANDLE);
762 ves_icall_System_IO_MonoIO_get_ConsoleError ()
766 return GetStdHandle (STD_ERROR_HANDLE);
770 ves_icall_System_IO_MonoIO_CreatePipe (HANDLE *read_handle,
771 HANDLE *write_handle)
773 SECURITY_ATTRIBUTES attr;
778 attr.nLength=sizeof(SECURITY_ATTRIBUTES);
779 attr.bInheritHandle=TRUE;
780 attr.lpSecurityDescriptor=NULL;
782 ret=CreatePipe (read_handle, write_handle, &attr, 0);
784 /* FIXME: throw an exception? */
792 ves_icall_System_IO_MonoIO_get_VolumeSeparatorChar ()
794 #if defined (PLATFORM_WIN32)
795 return (gunichar2) ':'; /* colon */
797 return (gunichar2) '/'; /* forward slash */
802 ves_icall_System_IO_MonoIO_get_DirectorySeparatorChar ()
804 #if defined (PLATFORM_WIN32)
805 return (gunichar2) '\\'; /* backslash */
807 return (gunichar2) '/'; /* forward slash */
812 ves_icall_System_IO_MonoIO_get_AltDirectorySeparatorChar ()
814 #if defined (PLATFORM_WIN32)
815 return (gunichar2) '/'; /* forward slash */
817 return (gunichar2) '/'; /* slash, same as DirectorySeparatorChar */
822 ves_icall_System_IO_MonoIO_get_PathSeparator ()
824 #if defined (PLATFORM_WIN32)
825 return (gunichar2) ';'; /* semicolon */
827 return (gunichar2) ':'; /* colon */
831 static const gunichar2
832 invalid_path_chars [] = {
833 #if defined (PLATFORM_WIN32)
834 0x0022, /* double quote, which seems allowed in MS.NET but should be rejected */
835 0x003c, /* less than */
836 0x003e, /* greater than */
853 ves_icall_System_IO_MonoIO_get_InvalidPathChars ()
861 domain = mono_domain_get ();
862 n = sizeof (invalid_path_chars) / sizeof (gunichar2);
863 chars = mono_array_new (domain, mono_defaults.char_class, n);
865 for (i = 0; i < n; ++ i)
866 mono_array_set (chars, gunichar2, i, invalid_path_chars [i]);
872 ves_icall_System_IO_MonoIO_GetTempPath (MonoString **mono_name)
877 name=g_new0 (gunichar2, 256);
879 ret=GetTempPath (256, name);
881 /* Buffer was too short. Try again... */
883 name=g_new0 (gunichar2, ret+2); /* include the terminator */
884 ret=GetTempPath (ret, name);
889 g_message (G_GNUC_PRETTY_FUNCTION
890 ": Temp path is [%s] (len %d)", name, ret);
893 *mono_name=mono_string_new_utf16 (mono_domain_get (), name,
902 void ves_icall_System_IO_MonoIO_Lock (HANDLE handle, gint64 position,
903 gint64 length, gint32 *error)
907 *error=ERROR_SUCCESS;
909 ret=LockFile (handle, position & 0xFFFFFFFF, position >> 32,
910 length & 0xFFFFFFFF, length >> 32);
912 *error = GetLastError ();
916 void ves_icall_System_IO_MonoIO_Unlock (HANDLE handle, gint64 position,
917 gint64 length, gint32 *error)
921 *error=ERROR_SUCCESS;
923 ret=UnlockFile (handle, position & 0xFFFFFFFF, position >> 32,
924 length & 0xFFFFFFFF, length >> 32);
926 *error = GetLastError ();