2 * file-io.c: File IO internal calls
5 * Dick Porter (dick@ximian.com)
6 * Gonzalo Paniagua Javier (gonzalo@ximian.com)
8 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
9 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
10 * Copyright 2012 Xamarin Inc (http://www.xamarin.com)
21 #ifdef HAVE_SYS_STAT_H
24 #ifdef HAVE_SYS_TYPES_H
25 #include <sys/types.h>
28 #include <mono/metadata/object.h>
29 #include <mono/io-layer/io-layer.h>
30 #include <mono/metadata/file-io.h>
31 #include <mono/metadata/exception.h>
32 #include <mono/metadata/appdomain.h>
33 #include <mono/metadata/marshal.h>
34 #include <mono/utils/strenc.h>
35 #include <utils/mono-io-portability.h>
39 /* conversion functions */
41 static guint32 convert_mode(MonoFileMode mono_mode)
46 case FileMode_CreateNew:
55 case FileMode_OpenOrCreate:
58 case FileMode_Truncate:
59 mode=TRUNCATE_EXISTING;
65 g_warning("System.IO.FileMode has unknown value 0x%x",
74 static guint32 convert_access(MonoFileAccess mono_access)
82 case FileAccess_Write:
85 case FileAccess_ReadWrite:
86 access=GENERIC_READ|GENERIC_WRITE;
89 g_warning("System.IO.FileAccess has unknown value 0x%x",
98 static guint32 convert_share(MonoFileShare mono_share)
102 if (mono_share & FileShare_Read) {
103 share |= FILE_SHARE_READ;
105 if (mono_share & FileShare_Write) {
106 share |= FILE_SHARE_WRITE;
108 if (mono_share & FileShare_Delete) {
109 share |= FILE_SHARE_DELETE;
112 if (mono_share & ~(FileShare_Read|FileShare_Write|FileShare_Delete)) {
113 g_warning("System.IO.FileShare has unknown value 0x%x",
123 static guint32 convert_stdhandle(guint32 fd)
129 stdhandle=STD_INPUT_HANDLE;
132 stdhandle=STD_OUTPUT_HANDLE;
135 stdhandle=STD_ERROR_HANDLE;
138 g_warning("unknown standard file descriptor %d", fd);
139 stdhandle=STD_INPUT_HANDLE;
146 static guint32 convert_seekorigin(MonoSeekOrigin origin)
151 case SeekOrigin_Begin:
152 w32origin=FILE_BEGIN;
154 case SeekOrigin_Current:
155 w32origin=FILE_CURRENT;
161 g_warning("System.IO.SeekOrigin has unknown value 0x%x",
164 w32origin=FILE_CURRENT;
170 static gint64 convert_filetime (const FILETIME *filetime)
172 guint64 ticks = filetime->dwHighDateTime;
174 ticks += filetime->dwLowDateTime;
175 return (gint64)ticks;
178 static void convert_win32_file_attribute_data (const WIN32_FILE_ATTRIBUTE_DATA *data, MonoIOStat *stat)
180 stat->attributes = data->dwFileAttributes;
181 stat->creation_time = convert_filetime (&data->ftCreationTime);
182 stat->last_access_time = convert_filetime (&data->ftLastAccessTime);
183 stat->last_write_time = convert_filetime (&data->ftLastWriteTime);
184 stat->length = ((gint64)data->nFileSizeHigh << 32) | data->nFileSizeLow;
187 /* Managed file attributes have nearly but not quite the same values
188 * as the w32 equivalents.
190 static guint32 convert_attrs(MonoFileAttributes attrs)
192 if(attrs & FileAttributes_Encrypted) {
193 attrs |= FILE_ATTRIBUTE_ENCRYPTED;
200 * On Win32, GetFileAttributes|Ex () seems to try opening the file,
201 * which might lead to sharing violation errors, whereas FindFirstFile
202 * always succeeds. These 2 wrappers resort to FindFirstFile if
203 * GetFileAttributes|Ex () has failed.
206 get_file_attributes (const gunichar2 *path)
209 WIN32_FIND_DATA find_data;
213 res = GetFileAttributes (path);
217 error = GetLastError ();
219 if (error != ERROR_SHARING_VIOLATION)
222 find_handle = FindFirstFile (path, &find_data);
224 if (find_handle == INVALID_HANDLE_VALUE)
227 FindClose (find_handle);
229 return find_data.dwFileAttributes;
233 get_file_attributes_ex (const gunichar2 *path, WIN32_FILE_ATTRIBUTE_DATA *data)
236 WIN32_FIND_DATA find_data;
240 res = GetFileAttributesEx (path, GetFileExInfoStandard, data);
244 error = GetLastError ();
246 if (error != ERROR_SHARING_VIOLATION)
249 find_handle = FindFirstFile (path, &find_data);
251 if (find_handle == INVALID_HANDLE_VALUE)
254 FindClose (find_handle);
256 data->dwFileAttributes = find_data.dwFileAttributes;
257 data->ftCreationTime = find_data.ftCreationTime;
258 data->ftLastAccessTime = find_data.ftLastAccessTime;
259 data->ftLastWriteTime = find_data.ftLastWriteTime;
260 data->nFileSizeHigh = find_data.nFileSizeHigh;
261 data->nFileSizeLow = find_data.nFileSizeLow;
266 /* System.IO.MonoIO internal calls */
269 ves_icall_System_IO_MonoIO_CreateDirectory (MonoString *path, gint32 *error)
275 *error=ERROR_SUCCESS;
277 ret=CreateDirectory (mono_string_chars (path), NULL);
279 *error=GetLastError ();
286 ves_icall_System_IO_MonoIO_RemoveDirectory (MonoString *path, gint32 *error)
292 *error=ERROR_SUCCESS;
294 ret=RemoveDirectory (mono_string_chars (path));
296 *error=GetLastError ();
303 get_search_dir (MonoString *pattern)
308 p = mono_string_to_utf8 (pattern);
309 result = g_path_get_dirname (p);
315 ves_icall_System_IO_MonoIO_GetFileSystemEntries (MonoString *path,
316 MonoString *path_with_pattern,
317 gint attrs, gint mask,
323 WIN32_FIND_DATA data;
326 gchar *utf8_path, *utf8_result, *full_name;
331 *error = ERROR_SUCCESS;
333 domain = mono_domain_get ();
334 mask = convert_attrs (mask);
335 attributes = get_file_attributes (mono_string_chars (path));
336 if (attributes != -1) {
337 if ((attributes & FILE_ATTRIBUTE_DIRECTORY) == 0) {
338 *error = ERROR_INVALID_NAME;
342 *error = GetLastError ();
346 find_handle = FindFirstFile (mono_string_chars (path_with_pattern), &data);
347 if (find_handle == INVALID_HANDLE_VALUE) {
348 gint32 find_error = GetLastError ();
350 if (find_error == ERROR_FILE_NOT_FOUND || find_error == ERROR_NO_MORE_FILES) {
351 /* No files, so just return an empty array */
352 result = mono_array_new (domain,
353 mono_defaults.string_class,
363 utf8_path = get_search_dir (path_with_pattern);
364 names = g_ptr_array_new ();
367 if ((data.cFileName[0] == '.' && data.cFileName[1] == 0) ||
368 (data.cFileName[0] == '.' && data.cFileName[1] == '.' && data.cFileName[2] == 0)) {
372 if ((data.dwFileAttributes & mask) == attrs) {
373 utf8_result = g_utf16_to_utf8 (data.cFileName, -1, NULL, NULL, NULL);
374 if (utf8_result == NULL) {
378 full_name = g_build_filename (utf8_path, utf8_result, NULL);
379 g_ptr_array_add (names, full_name);
381 g_free (utf8_result);
383 } while(FindNextFile (find_handle, &data));
385 if (FindClose (find_handle) == FALSE) {
386 *error = GetLastError ();
389 result = mono_array_new (domain, mono_defaults.string_class, names->len);
390 for (i = 0; i < names->len; i++) {
391 mono_array_setref (result, i, mono_string_new (domain, g_ptr_array_index (names, i)));
395 for (i = 0; i < names->len; i++) {
396 g_free (g_ptr_array_index (names, i));
398 g_ptr_array_free (names, TRUE);
411 incremental_find_check_match (IncrementalFind *handle, WIN32_FIND_DATA *data, MonoString **result)
416 if ((data->cFileName[0] == '.' && data->cFileName[1] == 0) || (data->cFileName[0] == '.' && data->cFileName[1] == '.' && data->cFileName[2] == 0))
419 utf8_result = g_utf16_to_utf8 (data->cFileName, -1, NULL, NULL, NULL);
420 if (utf8_result == NULL)
423 full_name = g_build_filename (handle->utf8_path, utf8_result, NULL);
424 g_free (utf8_result);
425 *result = mono_string_new (mono_domain_get (), full_name);
432 ves_icall_System_IO_MonoIO_FindFirst (MonoString *path,
433 MonoString *path_with_pattern,
434 gint32 *result_attr, gint32 *error,
437 WIN32_FIND_DATA data;
439 IncrementalFind *ifh;
442 *error = ERROR_SUCCESS;
444 find_handle = FindFirstFile (mono_string_chars (path_with_pattern), &data);
446 if (find_handle == INVALID_HANDLE_VALUE) {
447 gint32 find_error = GetLastError ();
450 if (find_error == ERROR_FILE_NOT_FOUND)
457 ifh = g_new (IncrementalFind, 1);
458 ifh->find_handle = find_handle;
459 ifh->utf8_path = mono_string_to_utf8 (path);
460 ifh->domain = mono_domain_get ();
463 while (incremental_find_check_match (ifh, &data, &result) == 0){
464 if (FindNextFile (find_handle, &data) == FALSE){
465 int e = GetLastError ();
466 if (e != ERROR_NO_MORE_FILES)
471 *result_attr = data.dwFileAttributes;
477 ves_icall_System_IO_MonoIO_FindNext (gpointer handle, gint32 *result_attr, gint32 *error)
479 IncrementalFind *ifh = handle;
480 WIN32_FIND_DATA data;
483 error = ERROR_SUCCESS;
485 if (FindNextFile (ifh->find_handle, &data) == FALSE){
486 int e = GetLastError ();
487 if (e != ERROR_NO_MORE_FILES)
491 } while (incremental_find_check_match (ifh, &data, &result) == 0);
493 *result_attr = data.dwFileAttributes;
498 ves_icall_System_IO_MonoIO_FindClose (gpointer handle)
500 IncrementalFind *ifh = handle;
503 if (FindClose (ifh->find_handle) == FALSE){
504 error = GetLastError ();
506 error = ERROR_SUCCESS;
507 g_free (ifh->utf8_path);
514 ves_icall_System_IO_MonoIO_GetCurrentDirectory (gint32 *error)
522 len = MAX_PATH + 1; /*FIXME this is too smal under most unix systems.*/
523 buf = g_new (gunichar2, len);
525 *error=ERROR_SUCCESS;
528 res_len = GetCurrentDirectory (len, buf);
529 if (res_len > len) { /*buf is too small.*/
530 int old_res_len = res_len;
532 buf = g_new (gunichar2, res_len);
533 res_len = GetCurrentDirectory (res_len, buf) == old_res_len;
541 result = mono_string_new_utf16 (mono_domain_get (), buf, len);
543 *error=GetLastError ();
551 ves_icall_System_IO_MonoIO_SetCurrentDirectory (MonoString *path,
558 *error=ERROR_SUCCESS;
560 ret=SetCurrentDirectory (mono_string_chars (path));
562 *error=GetLastError ();
569 ves_icall_System_IO_MonoIO_MoveFile (MonoString *path, MonoString *dest,
576 *error=ERROR_SUCCESS;
578 ret=MoveFile (mono_string_chars (path), mono_string_chars (dest));
580 *error=GetLastError ();
587 ves_icall_System_IO_MonoIO_ReplaceFile (MonoString *sourceFileName, MonoString *destinationFileName,
588 MonoString *destinationBackupFileName, MonoBoolean ignoreMetadataErrors,
592 gunichar2 *utf16_sourceFileName = NULL, *utf16_destinationFileName = NULL, *utf16_destinationBackupFileName = NULL;
593 guint32 replaceFlags = REPLACEFILE_WRITE_THROUGH;
598 utf16_sourceFileName = mono_string_chars (sourceFileName);
599 if (destinationFileName)
600 utf16_destinationFileName = mono_string_chars (destinationFileName);
601 if (destinationBackupFileName)
602 utf16_destinationBackupFileName = mono_string_chars (destinationBackupFileName);
604 *error = ERROR_SUCCESS;
605 if (ignoreMetadataErrors)
606 replaceFlags |= REPLACEFILE_IGNORE_MERGE_ERRORS;
608 ret = ReplaceFile (utf16_destinationFileName, utf16_sourceFileName, utf16_destinationBackupFileName,
609 replaceFlags, NULL, NULL);
611 *error = GetLastError ();
617 ves_icall_System_IO_MonoIO_CopyFile (MonoString *path, MonoString *dest,
618 MonoBoolean overwrite, gint32 *error)
624 *error=ERROR_SUCCESS;
626 ret=CopyFile (mono_string_chars (path), mono_string_chars (dest), !overwrite);
628 *error=GetLastError ();
635 ves_icall_System_IO_MonoIO_DeleteFile (MonoString *path, gint32 *error)
641 *error=ERROR_SUCCESS;
643 ret=DeleteFile (mono_string_chars (path));
645 *error=GetLastError ();
652 ves_icall_System_IO_MonoIO_GetFileAttributes (MonoString *path, gint32 *error)
658 *error=ERROR_SUCCESS;
660 ret=get_file_attributes (mono_string_chars (path));
663 * The definition of INVALID_FILE_ATTRIBUTES in the cygwin win32
664 * headers is wrong, hence this temporary workaround.
666 * http://cygwin.com/ml/cygwin/2003-09/msg01771.html
669 /* if(ret==INVALID_FILE_ATTRIBUTES) { */
670 *error=GetLastError ();
677 ves_icall_System_IO_MonoIO_SetFileAttributes (MonoString *path, gint32 attrs,
684 *error=ERROR_SUCCESS;
686 ret=SetFileAttributes (mono_string_chars (path),
687 convert_attrs (attrs));
689 *error=GetLastError ();
696 ves_icall_System_IO_MonoIO_GetFileType (HANDLE handle, gint32 *error)
702 *error=ERROR_SUCCESS;
704 ret=GetFileType (handle);
705 if(ret==FILE_TYPE_UNKNOWN) {
706 /* Not necessarily an error, but the caller will have
707 * to decide based on the error value.
709 *error=GetLastError ();
716 ves_icall_System_IO_MonoIO_GetFileStat (MonoString *path, MonoIOStat *stat,
720 WIN32_FILE_ATTRIBUTE_DATA data;
724 *error=ERROR_SUCCESS;
726 result = get_file_attributes_ex (mono_string_chars (path), &data);
729 convert_win32_file_attribute_data (&data, stat);
731 *error=GetLastError ();
732 memset (stat, 0, sizeof (MonoIOStat));
739 ves_icall_System_IO_MonoIO_Open (MonoString *filename, gint32 mode,
740 gint32 access_mode, gint32 share, gint32 options,
744 int attributes, attrs;
745 gunichar2 *chars = mono_string_chars (filename);
749 *error=ERROR_SUCCESS;
752 if (options & FileOptions_Encrypted)
753 attributes = FILE_ATTRIBUTE_ENCRYPTED;
755 attributes = FILE_ATTRIBUTE_NORMAL;
756 if (options & FileOptions_DeleteOnClose)
757 attributes |= FILE_FLAG_DELETE_ON_CLOSE;
758 if (options & FileOptions_SequentialScan)
759 attributes |= FILE_FLAG_SEQUENTIAL_SCAN;
760 if (options & FileOptions_RandomAccess)
761 attributes |= FILE_FLAG_RANDOM_ACCESS;
763 if (options & FileOptions_Temporary)
764 attributes |= FILE_ATTRIBUTE_TEMPORARY;
766 /* Not sure if we should set FILE_FLAG_OVERLAPPED, how does this mix with the "Async" bool here? */
767 if (options & FileOptions_Asynchronous)
768 attributes |= FILE_FLAG_OVERLAPPED;
770 if (options & FileOptions_WriteThrough)
771 attributes |= FILE_FLAG_WRITE_THROUGH;
773 attributes = FILE_ATTRIBUTE_NORMAL;
775 /* If we're opening a directory we need to set the extra flag
777 attrs = get_file_attributes (chars);
778 if (attrs != INVALID_FILE_ATTRIBUTES) {
779 if (attrs & FILE_ATTRIBUTE_DIRECTORY) {
780 attributes |= FILE_FLAG_BACKUP_SEMANTICS;
784 ret=CreateFile (chars, convert_access (access_mode),
785 convert_share (share), NULL, convert_mode (mode),
787 if(ret==INVALID_HANDLE_VALUE) {
788 *error=GetLastError ();
795 ves_icall_System_IO_MonoIO_Close (HANDLE handle, gint32 *error)
801 *error=ERROR_SUCCESS;
803 ret=CloseHandle (handle);
805 *error=GetLastError ();
812 ves_icall_System_IO_MonoIO_Read (HANDLE handle, MonoArray *dest,
813 gint32 dest_offset, gint32 count,
822 *error=ERROR_SUCCESS;
824 MONO_CHECK_ARG_NULL (dest);
826 if (dest_offset + count > mono_array_length (dest))
829 buffer = mono_array_addr (dest, guchar, dest_offset);
830 result = ReadFile (handle, buffer, count, &n, NULL);
833 *error=GetLastError ();
841 ves_icall_System_IO_MonoIO_Write (HANDLE handle, MonoArray *src,
842 gint32 src_offset, gint32 count,
851 *error=ERROR_SUCCESS;
853 MONO_CHECK_ARG_NULL (src);
855 if (src_offset + count > mono_array_length (src))
858 buffer = mono_array_addr (src, guchar, src_offset);
859 result = WriteFile (handle, buffer, count, &n, NULL);
862 *error=GetLastError ();
870 ves_icall_System_IO_MonoIO_Seek (HANDLE handle, gint64 offset, gint32 origin,
877 *error=ERROR_SUCCESS;
879 offset_hi = offset >> 32;
880 offset = SetFilePointer (handle, (gint32) (offset & 0xFFFFFFFF), &offset_hi,
881 convert_seekorigin (origin));
883 if(offset==INVALID_SET_FILE_POINTER) {
884 *error=GetLastError ();
887 return offset | ((gint64)offset_hi << 32);
891 ves_icall_System_IO_MonoIO_Flush (HANDLE handle, gint32 *error)
897 *error=ERROR_SUCCESS;
899 ret=FlushFileBuffers (handle);
901 *error=GetLastError ();
908 ves_icall_System_IO_MonoIO_GetLength (HANDLE handle, gint32 *error)
915 *error=ERROR_SUCCESS;
917 length = GetFileSize (handle, &length_hi);
918 if(length==INVALID_FILE_SIZE) {
919 *error=GetLastError ();
922 return length | ((gint64)length_hi << 32);
926 ves_icall_System_IO_MonoIO_SetLength (HANDLE handle, gint64 length,
929 gint64 offset, offset_set;
936 *error=ERROR_SUCCESS;
938 /* save file pointer */
941 offset = SetFilePointer (handle, 0, &offset_hi, FILE_CURRENT);
942 if(offset==INVALID_SET_FILE_POINTER) {
943 *error=GetLastError ();
947 /* extend or truncate */
949 length_hi = length >> 32;
950 offset_set=SetFilePointer (handle, length & 0xFFFFFFFF, &length_hi,
952 if(offset_set==INVALID_SET_FILE_POINTER) {
953 *error=GetLastError ();
957 result = SetEndOfFile (handle);
959 *error=GetLastError ();
963 /* restore file pointer */
965 offset_set=SetFilePointer (handle, offset & 0xFFFFFFFF, &offset_hi,
967 if(offset_set==INVALID_SET_FILE_POINTER) {
968 *error=GetLastError ();
976 ves_icall_System_IO_MonoIO_SetFileTime (HANDLE handle, gint64 creation_time,
977 gint64 last_access_time,
978 gint64 last_write_time, gint32 *error)
981 const FILETIME *creation_filetime;
982 const FILETIME *last_access_filetime;
983 const FILETIME *last_write_filetime;
987 *error=ERROR_SUCCESS;
989 if (creation_time < 0)
990 creation_filetime = NULL;
992 creation_filetime = (FILETIME *)&creation_time;
994 if (last_access_time < 0)
995 last_access_filetime = NULL;
997 last_access_filetime = (FILETIME *)&last_access_time;
999 if (last_write_time < 0)
1000 last_write_filetime = NULL;
1002 last_write_filetime = (FILETIME *)&last_write_time;
1004 ret=SetFileTime (handle, creation_filetime, last_access_filetime, last_write_filetime);
1006 *error=GetLastError ();
1013 ves_icall_System_IO_MonoIO_get_ConsoleOutput ()
1015 MONO_ARCH_SAVE_REGS;
1017 return GetStdHandle (STD_OUTPUT_HANDLE);
1021 ves_icall_System_IO_MonoIO_get_ConsoleInput ()
1023 MONO_ARCH_SAVE_REGS;
1025 return GetStdHandle (STD_INPUT_HANDLE);
1029 ves_icall_System_IO_MonoIO_get_ConsoleError ()
1031 MONO_ARCH_SAVE_REGS;
1033 return GetStdHandle (STD_ERROR_HANDLE);
1037 ves_icall_System_IO_MonoIO_CreatePipe (HANDLE *read_handle,
1038 HANDLE *write_handle)
1040 SECURITY_ATTRIBUTES attr;
1043 MONO_ARCH_SAVE_REGS;
1045 attr.nLength=sizeof(SECURITY_ATTRIBUTES);
1046 attr.bInheritHandle=TRUE;
1047 attr.lpSecurityDescriptor=NULL;
1049 ret=CreatePipe (read_handle, write_handle, &attr, 0);
1051 /* FIXME: throw an exception? */
1058 MonoBoolean ves_icall_System_IO_MonoIO_DuplicateHandle (HANDLE source_process_handle,
1059 HANDLE source_handle, HANDLE target_process_handle, HANDLE *target_handle,
1060 gint32 access, gint32 inherit, gint32 options)
1062 /* This is only used on Windows */
1065 MONO_ARCH_SAVE_REGS;
1067 ret=DuplicateHandle (source_process_handle, source_handle, target_process_handle, target_handle, access, inherit, options);
1069 /* FIXME: throw an exception? */
1077 ves_icall_System_IO_MonoIO_get_VolumeSeparatorChar ()
1079 #if defined (TARGET_WIN32)
1080 return (gunichar2) ':'; /* colon */
1082 return (gunichar2) '/'; /* forward slash */
1087 ves_icall_System_IO_MonoIO_get_DirectorySeparatorChar ()
1089 #if defined (TARGET_WIN32)
1090 return (gunichar2) '\\'; /* backslash */
1092 return (gunichar2) '/'; /* forward slash */
1097 ves_icall_System_IO_MonoIO_get_AltDirectorySeparatorChar ()
1099 #if defined (TARGET_WIN32)
1100 return (gunichar2) '/'; /* forward slash */
1102 if (IS_PORTABILITY_SET)
1103 return (gunichar2) '\\'; /* backslash */
1105 return (gunichar2) '/'; /* forward slash */
1110 ves_icall_System_IO_MonoIO_get_PathSeparator ()
1112 #if defined (TARGET_WIN32)
1113 return (gunichar2) ';'; /* semicolon */
1115 return (gunichar2) ':'; /* colon */
1119 static const gunichar2
1120 invalid_path_chars [] = {
1121 #if defined (TARGET_WIN32)
1122 0x0022, /* double quote, which seems allowed in MS.NET but should be rejected */
1123 0x003c, /* less than */
1124 0x003e, /* greater than */
1141 ves_icall_System_IO_MonoIO_get_InvalidPathChars ()
1147 MONO_ARCH_SAVE_REGS;
1149 domain = mono_domain_get ();
1150 n = sizeof (invalid_path_chars) / sizeof (gunichar2);
1151 chars = mono_array_new (domain, mono_defaults.char_class, n);
1153 for (i = 0; i < n; ++ i)
1154 mono_array_set (chars, gunichar2, i, invalid_path_chars [i]);
1160 ves_icall_System_IO_MonoIO_GetTempPath (MonoString **mono_name)
1165 name=g_new0 (gunichar2, 256);
1167 ret=GetTempPath (256, name);
1169 /* Buffer was too short. Try again... */
1171 name=g_new0 (gunichar2, ret+2); /* include the terminator */
1172 ret=GetTempPath (ret, name);
1177 g_message ("%s: Temp path is [%s] (len %d)", __func__, name, ret);
1180 mono_gc_wbarrier_generic_store ((gpointer) mono_name,
1181 (MonoObject*) mono_string_new_utf16 (mono_domain_get (), name, ret));
1189 void ves_icall_System_IO_MonoIO_Lock (HANDLE handle, gint64 position,
1190 gint64 length, gint32 *error)
1194 *error=ERROR_SUCCESS;
1196 ret=LockFile (handle, position & 0xFFFFFFFF, position >> 32,
1197 length & 0xFFFFFFFF, length >> 32);
1199 *error = GetLastError ();
1203 void ves_icall_System_IO_MonoIO_Unlock (HANDLE handle, gint64 position,
1204 gint64 length, gint32 *error)
1208 *error=ERROR_SUCCESS;
1210 ret=UnlockFile (handle, position & 0xFFFFFFFF, position >> 32,
1211 length & 0xFFFFFFFF, length >> 32);
1213 *error = GetLastError ();
1217 //Support for io-layer free mmap'd files.
1219 #if (defined (__MACH__) && defined (TARGET_ARM)) || defined (TARGET_ANDROID)
1222 mono_filesize_from_path (MonoString *string)
1226 char *path = mono_string_to_utf8 (string);
1228 if (stat (path, &buf) == -1)
1231 res = (gint64)buf.st_size;
1238 mono_filesize_from_fd (int fd)
1242 if (fstat (fd, &buf) == -1)
1245 return (gint64)buf.st_size;