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)
272 MONO_PREPARE_BLOCKING
274 *error=ERROR_SUCCESS;
276 ret=CreateDirectory (mono_string_chars (path), NULL);
278 *error=GetLastError ();
286 ves_icall_System_IO_MonoIO_RemoveDirectory (MonoString *path, gint32 *error)
289 MONO_PREPARE_BLOCKING
291 *error=ERROR_SUCCESS;
293 ret=RemoveDirectory (mono_string_chars (path));
295 *error=GetLastError ();
303 get_search_dir (MonoString *pattern)
308 p = mono_string_to_utf8 (pattern);
309 result = g_path_get_dirname (p);
315 get_filesystem_entries (MonoString *path,
316 MonoString *path_with_pattern,
317 gint attrs, gint mask,
321 WIN32_FIND_DATA data;
323 GPtrArray *names = NULL;
324 gchar *utf8_path = NULL, *utf8_result, *full_name;
327 mask = convert_attrs (mask);
328 attributes = get_file_attributes (mono_string_chars (path));
329 if (attributes != -1) {
330 if ((attributes & FILE_ATTRIBUTE_DIRECTORY) == 0) {
331 *error = ERROR_INVALID_NAME;
335 *error = GetLastError ();
339 find_handle = FindFirstFile (mono_string_chars (path_with_pattern), &data);
340 if (find_handle == INVALID_HANDLE_VALUE) {
341 gint32 find_error = GetLastError ();
343 if (find_error == ERROR_FILE_NOT_FOUND || find_error == ERROR_NO_MORE_FILES) {
344 /* No files, so just return an empty array */
352 utf8_path = get_search_dir (path_with_pattern);
353 names = g_ptr_array_new ();
356 if ((data.cFileName[0] == '.' && data.cFileName[1] == 0) ||
357 (data.cFileName[0] == '.' && data.cFileName[1] == '.' && data.cFileName[2] == 0)) {
361 if ((data.dwFileAttributes & mask) == attrs) {
362 utf8_result = g_utf16_to_utf8 (data.cFileName, -1, NULL, NULL, NULL);
363 if (utf8_result == NULL) {
367 full_name = g_build_filename (utf8_path, utf8_result, NULL);
368 g_ptr_array_add (names, full_name);
370 g_free (utf8_result);
372 } while(FindNextFile (find_handle, &data));
374 if (FindClose (find_handle) == FALSE) {
375 *error = GetLastError ();
383 for (i = 0; i < names->len; i++)
384 g_free (g_ptr_array_index (names, i));
385 g_ptr_array_free (names, TRUE);
393 ves_icall_System_IO_MonoIO_GetFileSystemEntries (MonoString *path,
394 MonoString *path_with_pattern,
395 gint attrs, gint mask,
398 MonoDomain *domain = mono_domain_get ();
403 *error = ERROR_SUCCESS;
405 MONO_PREPARE_BLOCKING
406 names = get_filesystem_entries (path, path_with_pattern, attrs, mask, error);
410 // If there's no array and no error, then return an empty array.
411 if (*error == ERROR_SUCCESS)
412 return mono_array_new (domain, mono_defaults.string_class, 0);
416 result = mono_array_new (domain, mono_defaults.string_class, names->len);
417 for (i = 0; i < names->len; i++) {
418 mono_array_setref (result, i, mono_string_new (domain, g_ptr_array_index (names, i)));
419 g_free (g_ptr_array_index (names, i));
421 g_ptr_array_free (names, TRUE);
432 incremental_find_check_match (IncrementalFind *handle, WIN32_FIND_DATA *data, MonoString **result)
437 if ((data->cFileName[0] == '.' && data->cFileName[1] == 0) || (data->cFileName[0] == '.' && data->cFileName[1] == '.' && data->cFileName[2] == 0))
440 utf8_result = g_utf16_to_utf8 (data->cFileName, -1, NULL, NULL, NULL);
441 if (utf8_result == NULL)
444 full_name = g_build_filename (handle->utf8_path, utf8_result, NULL);
445 g_free (utf8_result);
446 *result = mono_string_new (mono_domain_get (), full_name);
452 /* FIXME make gc suspendable */
454 ves_icall_System_IO_MonoIO_FindFirst (MonoString *path,
455 MonoString *path_with_pattern,
456 gint32 *result_attr, gint32 *error,
459 WIN32_FIND_DATA data;
461 IncrementalFind *ifh;
464 *error = ERROR_SUCCESS;
466 find_handle = FindFirstFile (mono_string_chars (path_with_pattern), &data);
468 if (find_handle == INVALID_HANDLE_VALUE) {
469 gint32 find_error = GetLastError ();
472 if (find_error == ERROR_FILE_NOT_FOUND)
479 ifh = g_new (IncrementalFind, 1);
480 ifh->find_handle = find_handle;
481 ifh->utf8_path = mono_string_to_utf8 (path);
482 ifh->domain = mono_domain_get ();
485 while (incremental_find_check_match (ifh, &data, &result) == 0){
486 if (FindNextFile (find_handle, &data) == FALSE){
487 int e = GetLastError ();
488 if (e != ERROR_NO_MORE_FILES)
493 *result_attr = data.dwFileAttributes;
498 /* FIXME make gc suspendable */
500 ves_icall_System_IO_MonoIO_FindNext (gpointer handle, gint32 *result_attr, gint32 *error)
502 IncrementalFind *ifh = handle;
503 WIN32_FIND_DATA data;
506 *error = ERROR_SUCCESS;
508 if (FindNextFile (ifh->find_handle, &data) == FALSE){
509 int e = GetLastError ();
510 if (e != ERROR_NO_MORE_FILES)
514 } while (incremental_find_check_match (ifh, &data, &result) == 0);
516 *result_attr = data.dwFileAttributes;
521 ves_icall_System_IO_MonoIO_FindClose (gpointer handle)
523 IncrementalFind *ifh = handle;
526 MONO_PREPARE_BLOCKING
527 if (FindClose (ifh->find_handle) == FALSE){
528 error = GetLastError ();
530 error = ERROR_SUCCESS;
531 g_free (ifh->utf8_path);
539 ves_icall_System_IO_MonoIO_GetCurrentDirectory (gint32 *error)
545 len = MAX_PATH + 1; /*FIXME this is too smal under most unix systems.*/
546 buf = g_new (gunichar2, len);
548 *error=ERROR_SUCCESS;
551 res_len = GetCurrentDirectory (len, buf);
552 if (res_len > len) { /*buf is too small.*/
553 int old_res_len = res_len;
555 buf = g_new (gunichar2, res_len);
556 res_len = GetCurrentDirectory (res_len, buf) == old_res_len;
564 result = mono_string_new_utf16 (mono_domain_get (), buf, len);
566 *error=GetLastError ();
574 ves_icall_System_IO_MonoIO_SetCurrentDirectory (MonoString *path,
579 *error=ERROR_SUCCESS;
581 ret=SetCurrentDirectory (mono_string_chars (path));
583 *error=GetLastError ();
590 ves_icall_System_IO_MonoIO_MoveFile (MonoString *path, MonoString *dest,
594 MONO_PREPARE_BLOCKING
596 *error=ERROR_SUCCESS;
598 ret=MoveFile (mono_string_chars (path), mono_string_chars (dest));
600 *error=GetLastError ();
608 ves_icall_System_IO_MonoIO_ReplaceFile (MonoString *sourceFileName, MonoString *destinationFileName,
609 MonoString *destinationBackupFileName, MonoBoolean ignoreMetadataErrors,
613 gunichar2 *utf16_sourceFileName = NULL, *utf16_destinationFileName = NULL, *utf16_destinationBackupFileName = NULL;
614 guint32 replaceFlags = REPLACEFILE_WRITE_THROUGH;
615 MONO_PREPARE_BLOCKING
618 utf16_sourceFileName = mono_string_chars (sourceFileName);
619 if (destinationFileName)
620 utf16_destinationFileName = mono_string_chars (destinationFileName);
621 if (destinationBackupFileName)
622 utf16_destinationBackupFileName = mono_string_chars (destinationBackupFileName);
624 *error = ERROR_SUCCESS;
625 if (ignoreMetadataErrors)
626 replaceFlags |= REPLACEFILE_IGNORE_MERGE_ERRORS;
628 /* FIXME: source and destination file names must not be NULL, but apparently they might be! */
629 ret = ReplaceFile (utf16_destinationFileName, utf16_sourceFileName, utf16_destinationBackupFileName,
630 replaceFlags, NULL, NULL);
632 *error = GetLastError ();
639 ves_icall_System_IO_MonoIO_CopyFile (MonoString *path, MonoString *dest,
640 MonoBoolean overwrite, gint32 *error)
643 MONO_PREPARE_BLOCKING
645 *error=ERROR_SUCCESS;
647 ret=CopyFile (mono_string_chars (path), mono_string_chars (dest), !overwrite);
649 *error=GetLastError ();
657 ves_icall_System_IO_MonoIO_DeleteFile (MonoString *path, gint32 *error)
660 MONO_PREPARE_BLOCKING
662 *error=ERROR_SUCCESS;
664 ret=DeleteFile (mono_string_chars (path));
666 *error=GetLastError ();
674 ves_icall_System_IO_MonoIO_GetFileAttributes (MonoString *path, gint32 *error)
677 MONO_PREPARE_BLOCKING
679 *error=ERROR_SUCCESS;
681 ret=get_file_attributes (mono_string_chars (path));
684 * The definition of INVALID_FILE_ATTRIBUTES in the cygwin win32
685 * headers is wrong, hence this temporary workaround.
687 * http://cygwin.com/ml/cygwin/2003-09/msg01771.html
690 /* if(ret==INVALID_FILE_ATTRIBUTES) { */
691 *error=GetLastError ();
699 ves_icall_System_IO_MonoIO_SetFileAttributes (MonoString *path, gint32 attrs,
703 MONO_PREPARE_BLOCKING
705 *error=ERROR_SUCCESS;
707 ret=SetFileAttributes (mono_string_chars (path),
708 convert_attrs (attrs));
710 *error=GetLastError ();
718 ves_icall_System_IO_MonoIO_GetFileType (HANDLE handle, gint32 *error)
721 MONO_PREPARE_BLOCKING
723 *error=ERROR_SUCCESS;
725 ret=GetFileType (handle);
726 if(ret==FILE_TYPE_UNKNOWN) {
727 /* Not necessarily an error, but the caller will have
728 * to decide based on the error value.
730 *error=GetLastError ();
738 ves_icall_System_IO_MonoIO_GetFileStat (MonoString *path, MonoIOStat *stat,
742 WIN32_FILE_ATTRIBUTE_DATA data;
743 MONO_PREPARE_BLOCKING
745 *error=ERROR_SUCCESS;
747 result = get_file_attributes_ex (mono_string_chars (path), &data);
750 convert_win32_file_attribute_data (&data, stat);
752 *error=GetLastError ();
753 memset (stat, 0, sizeof (MonoIOStat));
761 ves_icall_System_IO_MonoIO_Open (MonoString *filename, gint32 mode,
762 gint32 access_mode, gint32 share, gint32 options,
766 int attributes, attrs;
768 MONO_PREPARE_BLOCKING
770 chars = mono_string_chars (filename);
771 *error=ERROR_SUCCESS;
774 if (options & FileOptions_Encrypted)
775 attributes = FILE_ATTRIBUTE_ENCRYPTED;
777 attributes = FILE_ATTRIBUTE_NORMAL;
778 if (options & FileOptions_DeleteOnClose)
779 attributes |= FILE_FLAG_DELETE_ON_CLOSE;
780 if (options & FileOptions_SequentialScan)
781 attributes |= FILE_FLAG_SEQUENTIAL_SCAN;
782 if (options & FileOptions_RandomAccess)
783 attributes |= FILE_FLAG_RANDOM_ACCESS;
785 if (options & FileOptions_Temporary)
786 attributes |= FILE_ATTRIBUTE_TEMPORARY;
788 /* Not sure if we should set FILE_FLAG_OVERLAPPED, how does this mix with the "Async" bool here? */
789 if (options & FileOptions_Asynchronous)
790 attributes |= FILE_FLAG_OVERLAPPED;
792 if (options & FileOptions_WriteThrough)
793 attributes |= FILE_FLAG_WRITE_THROUGH;
795 attributes = FILE_ATTRIBUTE_NORMAL;
797 /* If we're opening a directory we need to set the extra flag
799 attrs = get_file_attributes (chars);
800 if (attrs != INVALID_FILE_ATTRIBUTES) {
801 if (attrs & FILE_ATTRIBUTE_DIRECTORY) {
802 attributes |= FILE_FLAG_BACKUP_SEMANTICS;
806 ret=CreateFile (chars, convert_access (access_mode),
807 convert_share (share), NULL, convert_mode (mode),
809 if(ret==INVALID_HANDLE_VALUE) {
810 *error=GetLastError ();
818 ves_icall_System_IO_MonoIO_Close (HANDLE handle, gint32 *error)
821 MONO_PREPARE_BLOCKING
823 *error=ERROR_SUCCESS;
825 ret=CloseHandle (handle);
827 *error=GetLastError ();
835 ves_icall_System_IO_MonoIO_Read (HANDLE handle, MonoArray *dest,
836 gint32 dest_offset, gint32 count,
843 *error=ERROR_SUCCESS;
845 MONO_CHECK_ARG_NULL (dest, 0);
847 if (dest_offset > mono_array_length (dest) - count) {
848 mono_set_pending_exception (mono_get_exception_argument ("array", "array too small. numBytes/offset wrong."));
852 buffer = mono_array_addr (dest, guchar, dest_offset);
854 MONO_PREPARE_BLOCKING
855 result = ReadFile (handle, buffer, count, &n, NULL);
859 *error=GetLastError ();
867 ves_icall_System_IO_MonoIO_Write (HANDLE handle, MonoArray *src,
868 gint32 src_offset, gint32 count,
875 *error=ERROR_SUCCESS;
877 MONO_CHECK_ARG_NULL (src, 0);
879 if (src_offset > mono_array_length (src) - count) {
880 mono_set_pending_exception (mono_get_exception_argument ("array", "array too small. numBytes/offset wrong."));
884 buffer = mono_array_addr (src, guchar, src_offset);
885 MONO_PREPARE_BLOCKING
886 result = WriteFile (handle, buffer, count, &n, NULL);
890 *error=GetLastError ();
898 ves_icall_System_IO_MonoIO_Seek (HANDLE handle, gint64 offset, gint32 origin,
902 MONO_PREPARE_BLOCKING
904 *error=ERROR_SUCCESS;
906 offset_hi = offset >> 32;
907 offset = SetFilePointer (handle, (gint32) (offset & 0xFFFFFFFF), &offset_hi,
908 convert_seekorigin (origin));
910 if(offset==INVALID_SET_FILE_POINTER) {
911 *error=GetLastError ();
915 return offset | ((gint64)offset_hi << 32);
919 ves_icall_System_IO_MonoIO_Flush (HANDLE handle, gint32 *error)
922 MONO_PREPARE_BLOCKING
924 *error=ERROR_SUCCESS;
926 ret=FlushFileBuffers (handle);
928 *error=GetLastError ();
936 ves_icall_System_IO_MonoIO_GetLength (HANDLE handle, gint32 *error)
940 MONO_PREPARE_BLOCKING
942 *error=ERROR_SUCCESS;
944 length = GetFileSize (handle, &length_hi);
945 if(length==INVALID_FILE_SIZE) {
946 *error=GetLastError ();
950 return length | ((gint64)length_hi << 32);
953 /* FIXME make gc suspendable */
955 ves_icall_System_IO_MonoIO_SetLength (HANDLE handle, gint64 length,
958 gint64 offset, offset_set;
963 *error=ERROR_SUCCESS;
965 /* save file pointer */
968 offset = SetFilePointer (handle, 0, &offset_hi, FILE_CURRENT);
969 if(offset==INVALID_SET_FILE_POINTER) {
970 *error=GetLastError ();
974 /* extend or truncate */
976 length_hi = length >> 32;
977 offset_set=SetFilePointer (handle, length & 0xFFFFFFFF, &length_hi,
979 if(offset_set==INVALID_SET_FILE_POINTER) {
980 *error=GetLastError ();
984 result = SetEndOfFile (handle);
986 *error=GetLastError ();
990 /* restore file pointer */
992 offset_set=SetFilePointer (handle, offset & 0xFFFFFFFF, &offset_hi,
994 if(offset_set==INVALID_SET_FILE_POINTER) {
995 *error=GetLastError ();
1003 ves_icall_System_IO_MonoIO_SetFileTime (HANDLE handle, gint64 creation_time,
1004 gint64 last_access_time,
1005 gint64 last_write_time, gint32 *error)
1008 const FILETIME *creation_filetime;
1009 const FILETIME *last_access_filetime;
1010 const FILETIME *last_write_filetime;
1011 MONO_PREPARE_BLOCKING
1013 *error=ERROR_SUCCESS;
1015 if (creation_time < 0)
1016 creation_filetime = NULL;
1018 creation_filetime = (FILETIME *)&creation_time;
1020 if (last_access_time < 0)
1021 last_access_filetime = NULL;
1023 last_access_filetime = (FILETIME *)&last_access_time;
1025 if (last_write_time < 0)
1026 last_write_filetime = NULL;
1028 last_write_filetime = (FILETIME *)&last_write_time;
1030 ret=SetFileTime (handle, creation_filetime, last_access_filetime, last_write_filetime);
1032 *error=GetLastError ();
1035 MONO_FINISH_BLOCKING
1040 ves_icall_System_IO_MonoIO_get_ConsoleOutput ()
1042 return GetStdHandle (STD_OUTPUT_HANDLE);
1046 ves_icall_System_IO_MonoIO_get_ConsoleInput ()
1048 return GetStdHandle (STD_INPUT_HANDLE);
1052 ves_icall_System_IO_MonoIO_get_ConsoleError ()
1054 return GetStdHandle (STD_ERROR_HANDLE);
1058 ves_icall_System_IO_MonoIO_CreatePipe (HANDLE *read_handle,
1059 HANDLE *write_handle)
1061 SECURITY_ATTRIBUTES attr;
1064 attr.nLength=sizeof(SECURITY_ATTRIBUTES);
1065 attr.bInheritHandle=TRUE;
1066 attr.lpSecurityDescriptor=NULL;
1068 MONO_PREPARE_BLOCKING
1069 ret=CreatePipe (read_handle, write_handle, &attr, 0);
1070 MONO_FINISH_BLOCKING
1073 /* FIXME: throw an exception? */
1080 MonoBoolean ves_icall_System_IO_MonoIO_DuplicateHandle (HANDLE source_process_handle,
1081 HANDLE source_handle, HANDLE target_process_handle, HANDLE *target_handle,
1082 gint32 access, gint32 inherit, gint32 options)
1084 /* This is only used on Windows */
1087 MONO_PREPARE_BLOCKING
1088 ret=DuplicateHandle (source_process_handle, source_handle, target_process_handle, target_handle, access, inherit, options);
1089 MONO_FINISH_BLOCKING
1092 /* FIXME: throw an exception? */
1100 ves_icall_System_IO_MonoIO_get_VolumeSeparatorChar ()
1102 #if defined (TARGET_WIN32)
1103 return (gunichar2) ':'; /* colon */
1105 return (gunichar2) '/'; /* forward slash */
1110 ves_icall_System_IO_MonoIO_get_DirectorySeparatorChar ()
1112 #if defined (TARGET_WIN32)
1113 return (gunichar2) '\\'; /* backslash */
1115 return (gunichar2) '/'; /* forward slash */
1120 ves_icall_System_IO_MonoIO_get_AltDirectorySeparatorChar ()
1122 #if defined (TARGET_WIN32)
1123 return (gunichar2) '/'; /* forward slash */
1125 if (IS_PORTABILITY_SET)
1126 return (gunichar2) '\\'; /* backslash */
1128 return (gunichar2) '/'; /* forward slash */
1133 ves_icall_System_IO_MonoIO_get_PathSeparator ()
1135 #if defined (TARGET_WIN32)
1136 return (gunichar2) ';'; /* semicolon */
1138 return (gunichar2) ':'; /* colon */
1142 static const gunichar2
1143 invalid_path_chars [] = {
1144 #if defined (TARGET_WIN32)
1145 0x0022, /* double quote, which seems allowed in MS.NET but should be rejected */
1146 0x003c, /* less than */
1147 0x003e, /* greater than */
1164 ves_icall_System_IO_MonoIO_get_InvalidPathChars ()
1170 domain = mono_domain_get ();
1171 n = sizeof (invalid_path_chars) / sizeof (gunichar2);
1172 chars = mono_array_new (domain, mono_defaults.char_class, n);
1174 for (i = 0; i < n; ++ i)
1175 mono_array_set (chars, gunichar2, i, invalid_path_chars [i]);
1181 ves_icall_System_IO_MonoIO_GetTempPath (MonoString **mono_name)
1186 MONO_PREPARE_BLOCKING
1187 name=g_new0 (gunichar2, 256);
1189 ret=GetTempPath (256, name);
1191 /* Buffer was too short. Try again... */
1193 name=g_new0 (gunichar2, ret+2); /* include the terminator */
1194 ret=GetTempPath (ret, name);
1196 MONO_FINISH_BLOCKING
1200 g_message ("%s: Temp path is [%s] (len %d)", __func__, name, ret);
1203 mono_gc_wbarrier_generic_store ((gpointer) mono_name,
1204 (MonoObject*) mono_string_new_utf16 (mono_domain_get (), name, ret));
1212 void ves_icall_System_IO_MonoIO_Lock (HANDLE handle, gint64 position,
1213 gint64 length, gint32 *error)
1216 MONO_PREPARE_BLOCKING
1218 *error=ERROR_SUCCESS;
1220 ret=LockFile (handle, position & 0xFFFFFFFF, position >> 32,
1221 length & 0xFFFFFFFF, length >> 32);
1223 *error = GetLastError ();
1226 MONO_FINISH_BLOCKING
1229 void ves_icall_System_IO_MonoIO_Unlock (HANDLE handle, gint64 position,
1230 gint64 length, gint32 *error)
1233 MONO_PREPARE_BLOCKING
1235 *error=ERROR_SUCCESS;
1237 ret=UnlockFile (handle, position & 0xFFFFFFFF, position >> 32,
1238 length & 0xFFFFFFFF, length >> 32);
1240 *error = GetLastError ();
1243 MONO_FINISH_BLOCKING
1246 //Support for io-layer free mmap'd files.
1248 #if defined (TARGET_IOS) || defined (TARGET_ANDROID)
1251 mono_filesize_from_path (MonoString *string)
1255 char *path = mono_string_to_utf8 (string);
1257 MONO_PREPARE_BLOCKING
1258 if (stat (path, &buf) == -1)
1261 res = (gint64)buf.st_size;
1265 MONO_FINISH_BLOCKING
1270 mono_filesize_from_fd (int fd)
1275 MONO_PREPARE_BLOCKING
1276 res = fstat (fd, &buf);
1277 MONO_FINISH_BLOCKING
1282 return (gint64)buf.st_size;