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1 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
3 /* GIO - GLib Input, Output and Streaming Library
4 *
5 * Copyright (C) 2006-2007 Red Hat, Inc.
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General
18 * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
20 * Author: Alexander Larsson <alexl@redhat.com>
23 #include "config.h"
25 #ifdef __linux__
26 #include <sys/ioctl.h>
27 #include <errno.h>
28 /* See linux.git/fs/btrfs/ioctl.h */
29 #define BTRFS_IOCTL_MAGIC 0x94
30 #define BTRFS_IOC_CLONE _IOW(BTRFS_IOCTL_MAGIC, 9, int)
31 #endif
33 #ifdef HAVE_SPLICE
34 #include <sys/stat.h>
35 #include <unistd.h>
36 #include <fcntl.h>
37 #include <errno.h>
38 #endif
40 #include <string.h>
41 #include <sys/types.h>
43 #include "gfile.h"
44 #include "glib/gstdio.h"
45 #ifdef G_OS_UNIX
46 #include "glib-unix.h"
47 #endif
48 #include "gvfs.h"
49 #include "gtask.h"
50 #include "gfileattribute-priv.h"
51 #include "gfiledescriptorbased.h"
52 #include "gpollfilemonitor.h"
53 #include "gappinfo.h"
54 #include "gfileinputstream.h"
55 #include "gfileoutputstream.h"
56 #include "glocalfileoutputstream.h"
57 #include "glocalfileiostream.h"
58 #include "glocalfile.h"
59 #include "gcancellable.h"
60 #include "gasyncresult.h"
61 #include "gioerror.h"
62 #include "glibintl.h"
65 /**
66 * SECTION:gfile
67 * @short_description: File and Directory Handling
68 * @include: gio/gio.h
69 * @see_also: #GFileInfo, #GFileEnumerator
71 * #GFile is a high level abstraction for manipulating files on a
72 * virtual file system. #GFiles are lightweight, immutable objects
73 * that do no I/O upon creation. It is necessary to understand that
74 * #GFile objects do not represent files, merely an identifier for a
75 * file. All file content I/O is implemented as streaming operations
76 * (see #GInputStream and #GOutputStream).
78 * To construct a #GFile, you can use:
79 * - g_file_new_for_path() if you have a path.
80 * - g_file_new_for_uri() if you have a URI.
81 * - g_file_new_for_commandline_arg() for a command line argument.
82 * - g_file_new_tmp() to create a temporary file from a template.
83 * - g_file_parse_name() from a UTF-8 string gotten from g_file_get_parse_name().
85 * One way to think of a #GFile is as an abstraction of a pathname. For
86 * normal files the system pathname is what is stored internally, but as
87 * #GFiles are extensible it could also be something else that corresponds
88 * to a pathname in a userspace implementation of a filesystem.
90 * #GFiles make up hierarchies of directories and files that correspond to
91 * the files on a filesystem. You can move through the file system with
92 * #GFile using g_file_get_parent() to get an identifier for the parent
93 * directory, g_file_get_child() to get a child within a directory,
94 * g_file_resolve_relative_path() to resolve a relative path between two
95 * #GFiles. There can be multiple hierarchies, so you may not end up at
96 * the same root if you repeatedly call g_file_get_parent() on two different
97 * files.
99 * All #GFiles have a basename (get with g_file_get_basename()). These names
100 * are byte strings that are used to identify the file on the filesystem
101 * (relative to its parent directory) and there is no guarantees that they
102 * have any particular charset encoding or even make any sense at all. If
103 * you want to use filenames in a user interface you should use the display
104 * name that you can get by requesting the
105 * %G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME attribute with g_file_query_info().
106 * This is guaranteed to be in UTF-8 and can be used in a user interface.
107 * But always store the real basename or the #GFile to use to actually
108 * access the file, because there is no way to go from a display name to
109 * the actual name.
111 * Using #GFile as an identifier has the same weaknesses as using a path
112 * in that there may be multiple aliases for the same file. For instance,
113 * hard or soft links may cause two different #GFiles to refer to the same
114 * file. Other possible causes for aliases are: case insensitive filesystems,
115 * short and long names on FAT/NTFS, or bind mounts in Linux. If you want to
116 * check if two #GFiles point to the same file you can query for the
117 * %G_FILE_ATTRIBUTE_ID_FILE attribute. Note that #GFile does some trivial
118 * canonicalization of pathnames passed in, so that trivial differences in
119 * the path string used at creation (duplicated slashes, slash at end of
120 * path, "." or ".." path segments, etc) does not create different #GFiles.
122 * Many #GFile operations have both synchronous and asynchronous versions
123 * to suit your application. Asynchronous versions of synchronous functions
124 * simply have _async() appended to their function names. The asynchronous
125 * I/O functions call a #GAsyncReadyCallback which is then used to finalize
126 * the operation, producing a GAsyncResult which is then passed to the
127 * function's matching _finish() operation.
129 * It is highly recommended to use asynchronous calls when running within a
130 * shared main loop, such as in the main thread of an application. This avoids
131 * I/O operations blocking other sources on the main loop from being dispatched.
132 * Synchronous I/O operations should be performed from worker threads. See the
133 * [introduction to asynchronous programming section][async-programming] for
134 * more.
136 * Some #GFile operations almost always take a noticeable amount of time, and
137 * so do not have synchronous analogs. Notable cases include:
138 * - g_file_mount_mountable() to mount a mountable file.
139 * - g_file_unmount_mountable_with_operation() to unmount a mountable file.
140 * - g_file_eject_mountable_with_operation() to eject a mountable file.
142 * ## Entity Tags # {#gfile-etag}
144 * One notable feature of #GFiles are entity tags, or "etags" for
145 * short. Entity tags are somewhat like a more abstract version of the
146 * traditional mtime, and can be used to quickly determine if the file
147 * has been modified from the version on the file system. See the
148 * HTTP 1.1
149 * [specification](http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html)
150 * for HTTP Etag headers, which are a very similar concept.
153 static void g_file_real_query_info_async (GFile *file,
154 const char *attributes,
155 GFileQueryInfoFlags flags,
156 int io_priority,
157 GCancellable *cancellable,
158 GAsyncReadyCallback callback,
159 gpointer user_data);
160 static GFileInfo * g_file_real_query_info_finish (GFile *file,
161 GAsyncResult *res,
162 GError **error);
163 static void g_file_real_query_filesystem_info_async (GFile *file,
164 const char *attributes,
165 int io_priority,
166 GCancellable *cancellable,
167 GAsyncReadyCallback callback,
168 gpointer user_data);
169 static GFileInfo * g_file_real_query_filesystem_info_finish (GFile *file,
170 GAsyncResult *res,
171 GError **error);
172 static void g_file_real_enumerate_children_async (GFile *file,
173 const char *attributes,
174 GFileQueryInfoFlags flags,
175 int io_priority,
176 GCancellable *cancellable,
177 GAsyncReadyCallback callback,
178 gpointer user_data);
179 static GFileEnumerator * g_file_real_enumerate_children_finish (GFile *file,
180 GAsyncResult *res,
181 GError **error);
182 static void g_file_real_read_async (GFile *file,
183 int io_priority,
184 GCancellable *cancellable,
185 GAsyncReadyCallback callback,
186 gpointer user_data);
187 static GFileInputStream * g_file_real_read_finish (GFile *file,
188 GAsyncResult *res,
189 GError **error);
190 static void g_file_real_append_to_async (GFile *file,
191 GFileCreateFlags flags,
192 int io_priority,
193 GCancellable *cancellable,
194 GAsyncReadyCallback callback,
195 gpointer user_data);
196 static GFileOutputStream *g_file_real_append_to_finish (GFile *file,
197 GAsyncResult *res,
198 GError **error);
199 static void g_file_real_create_async (GFile *file,
200 GFileCreateFlags flags,
201 int io_priority,
202 GCancellable *cancellable,
203 GAsyncReadyCallback callback,
204 gpointer user_data);
205 static GFileOutputStream *g_file_real_create_finish (GFile *file,
206 GAsyncResult *res,
207 GError **error);
208 static void g_file_real_replace_async (GFile *file,
209 const char *etag,
210 gboolean make_backup,
211 GFileCreateFlags flags,
212 int io_priority,
213 GCancellable *cancellable,
214 GAsyncReadyCallback callback,
215 gpointer user_data);
216 static GFileOutputStream *g_file_real_replace_finish (GFile *file,
217 GAsyncResult *res,
218 GError **error);
219 static void g_file_real_delete_async (GFile *file,
220 int io_priority,
221 GCancellable *cancellable,
222 GAsyncReadyCallback callback,
223 gpointer user_data);
224 static gboolean g_file_real_delete_finish (GFile *file,
225 GAsyncResult *res,
226 GError **error);
227 static void g_file_real_trash_async (GFile *file,
228 int io_priority,
229 GCancellable *cancellable,
230 GAsyncReadyCallback callback,
231 gpointer user_data);
232 static gboolean g_file_real_trash_finish (GFile *file,
233 GAsyncResult *res,
234 GError **error);
235 static void g_file_real_make_directory_async (GFile *file,
236 int io_priority,
237 GCancellable *cancellable,
238 GAsyncReadyCallback callback,
239 gpointer user_data);
240 static gboolean g_file_real_make_directory_finish (GFile *file,
241 GAsyncResult *res,
242 GError **error);
243 static void g_file_real_open_readwrite_async (GFile *file,
244 int io_priority,
245 GCancellable *cancellable,
246 GAsyncReadyCallback callback,
247 gpointer user_data);
248 static GFileIOStream * g_file_real_open_readwrite_finish (GFile *file,
249 GAsyncResult *res,
250 GError **error);
251 static void g_file_real_create_readwrite_async (GFile *file,
252 GFileCreateFlags flags,
253 int io_priority,
254 GCancellable *cancellable,
255 GAsyncReadyCallback callback,
256 gpointer user_data);
257 static GFileIOStream * g_file_real_create_readwrite_finish (GFile *file,
258 GAsyncResult *res,
259 GError **error);
260 static void g_file_real_replace_readwrite_async (GFile *file,
261 const char *etag,
262 gboolean make_backup,
263 GFileCreateFlags flags,
264 int io_priority,
265 GCancellable *cancellable,
266 GAsyncReadyCallback callback,
267 gpointer user_data);
268 static GFileIOStream * g_file_real_replace_readwrite_finish (GFile *file,
269 GAsyncResult *res,
270 GError **error);
271 static gboolean g_file_real_set_attributes_from_info (GFile *file,
272 GFileInfo *info,
273 GFileQueryInfoFlags flags,
274 GCancellable *cancellable,
275 GError **error);
276 static void g_file_real_set_display_name_async (GFile *file,
277 const char *display_name,
278 int io_priority,
279 GCancellable *cancellable,
280 GAsyncReadyCallback callback,
281 gpointer user_data);
282 static GFile * g_file_real_set_display_name_finish (GFile *file,
283 GAsyncResult *res,
284 GError **error);
285 static void g_file_real_set_attributes_async (GFile *file,
286 GFileInfo *info,
287 GFileQueryInfoFlags flags,
288 int io_priority,
289 GCancellable *cancellable,
290 GAsyncReadyCallback callback,
291 gpointer user_data);
292 static gboolean g_file_real_set_attributes_finish (GFile *file,
293 GAsyncResult *res,
294 GFileInfo **info,
295 GError **error);
296 static void g_file_real_find_enclosing_mount_async (GFile *file,
297 int io_priority,
298 GCancellable *cancellable,
299 GAsyncReadyCallback callback,
300 gpointer user_data);
301 static GMount * g_file_real_find_enclosing_mount_finish (GFile *file,
302 GAsyncResult *res,
303 GError **error);
304 static void g_file_real_copy_async (GFile *source,
305 GFile *destination,
306 GFileCopyFlags flags,
307 int io_priority,
308 GCancellable *cancellable,
309 GFileProgressCallback progress_callback,
310 gpointer progress_callback_data,
311 GAsyncReadyCallback callback,
312 gpointer user_data);
313 static gboolean g_file_real_copy_finish (GFile *file,
314 GAsyncResult *res,
315 GError **error);
317 static gboolean g_file_real_measure_disk_usage (GFile *file,
318 GFileMeasureFlags flags,
319 GCancellable *cancellable,
320 GFileMeasureProgressCallback progress_callback,
321 gpointer progress_data,
322 guint64 *disk_usage,
323 guint64 *num_dirs,
324 guint64 *num_files,
325 GError **error);
326 static void g_file_real_measure_disk_usage_async (GFile *file,
327 GFileMeasureFlags flags,
328 gint io_priority,
329 GCancellable *cancellable,
330 GFileMeasureProgressCallback progress_callback,
331 gpointer progress_data,
332 GAsyncReadyCallback callback,
333 gpointer user_data);
334 static gboolean g_file_real_measure_disk_usage_finish (GFile *file,
335 GAsyncResult *result,
336 guint64 *disk_usage,
337 guint64 *num_dirs,
338 guint64 *num_files,
339 GError **error);
341 typedef GFileIface GFileInterface;
342 G_DEFINE_INTERFACE (GFile, g_file, G_TYPE_OBJECT)
344 static void
345 g_file_default_init (GFileIface *iface)
347 iface->enumerate_children_async = g_file_real_enumerate_children_async;
348 iface->enumerate_children_finish = g_file_real_enumerate_children_finish;
349 iface->set_display_name_async = g_file_real_set_display_name_async;
350 iface->set_display_name_finish = g_file_real_set_display_name_finish;
351 iface->query_info_async = g_file_real_query_info_async;
352 iface->query_info_finish = g_file_real_query_info_finish;
353 iface->query_filesystem_info_async = g_file_real_query_filesystem_info_async;
354 iface->query_filesystem_info_finish = g_file_real_query_filesystem_info_finish;
355 iface->set_attributes_async = g_file_real_set_attributes_async;
356 iface->set_attributes_finish = g_file_real_set_attributes_finish;
357 iface->read_async = g_file_real_read_async;
358 iface->read_finish = g_file_real_read_finish;
359 iface->append_to_async = g_file_real_append_to_async;
360 iface->append_to_finish = g_file_real_append_to_finish;
361 iface->create_async = g_file_real_create_async;
362 iface->create_finish = g_file_real_create_finish;
363 iface->replace_async = g_file_real_replace_async;
364 iface->replace_finish = g_file_real_replace_finish;
365 iface->delete_file_async = g_file_real_delete_async;
366 iface->delete_file_finish = g_file_real_delete_finish;
367 iface->trash_async = g_file_real_trash_async;
368 iface->trash_finish = g_file_real_trash_finish;
369 iface->make_directory_async = g_file_real_make_directory_async;
370 iface->make_directory_finish = g_file_real_make_directory_finish;
371 iface->open_readwrite_async = g_file_real_open_readwrite_async;
372 iface->open_readwrite_finish = g_file_real_open_readwrite_finish;
373 iface->create_readwrite_async = g_file_real_create_readwrite_async;
374 iface->create_readwrite_finish = g_file_real_create_readwrite_finish;
375 iface->replace_readwrite_async = g_file_real_replace_readwrite_async;
376 iface->replace_readwrite_finish = g_file_real_replace_readwrite_finish;
377 iface->find_enclosing_mount_async = g_file_real_find_enclosing_mount_async;
378 iface->find_enclosing_mount_finish = g_file_real_find_enclosing_mount_finish;
379 iface->set_attributes_from_info = g_file_real_set_attributes_from_info;
380 iface->copy_async = g_file_real_copy_async;
381 iface->copy_finish = g_file_real_copy_finish;
382 iface->measure_disk_usage = g_file_real_measure_disk_usage;
383 iface->measure_disk_usage_async = g_file_real_measure_disk_usage_async;
384 iface->measure_disk_usage_finish = g_file_real_measure_disk_usage_finish;
389 * g_file_is_native:
390 * @file: input #GFile
392 * Checks to see if a file is native to the platform.
394 * A native file s one expressed in the platform-native filename format,
395 * e.g. "C:\Windows" or "/usr/bin/". This does not mean the file is local,
396 * as it might be on a locally mounted remote filesystem.
398 * On some systems non-native files may be available using the native
399 * filesystem via a userspace filesystem (FUSE), in these cases this call
400 * will return %FALSE, but g_file_get_path() will still return a native path.
402 * This call does no blocking I/O.
404 * Returns: %TRUE if @file is native
406 gboolean
407 g_file_is_native (GFile *file)
409 GFileIface *iface;
411 g_return_val_if_fail (G_IS_FILE (file), FALSE);
413 iface = G_FILE_GET_IFACE (file);
415 return (* iface->is_native) (file);
420 * g_file_has_uri_scheme:
421 * @file: input #GFile
422 * @uri_scheme: a string containing a URI scheme
424 * Checks to see if a #GFile has a given URI scheme.
426 * This call does no blocking I/O.
428 * Returns: %TRUE if #GFile's backend supports the
429 * given URI scheme, %FALSE if URI scheme is %NULL,
430 * not supported, or #GFile is invalid.
432 gboolean
433 g_file_has_uri_scheme (GFile *file,
434 const char *uri_scheme)
436 GFileIface *iface;
438 g_return_val_if_fail (G_IS_FILE (file), FALSE);
439 g_return_val_if_fail (uri_scheme != NULL, FALSE);
441 iface = G_FILE_GET_IFACE (file);
443 return (* iface->has_uri_scheme) (file, uri_scheme);
448 * g_file_get_uri_scheme:
449 * @file: input #GFile
451 * Gets the URI scheme for a #GFile.
452 * RFC 3986 decodes the scheme as:
453 * |[
454 * URI = scheme ":" hier-part [ "?" query ] [ "#" fragment ]
455 * ]|
456 * Common schemes include "file", "http", "ftp", etc.
458 * This call does no blocking I/O.
460 * Returns: a string containing the URI scheme for the given
461 * #GFile. The returned string should be freed with g_free()
462 * when no longer needed.
464 char *
465 g_file_get_uri_scheme (GFile *file)
467 GFileIface *iface;
469 g_return_val_if_fail (G_IS_FILE (file), NULL);
471 iface = G_FILE_GET_IFACE (file);
473 return (* iface->get_uri_scheme) (file);
478 * g_file_get_basename:
479 * @file: input #GFile
481 * Gets the base name (the last component of the path) for a given #GFile.
483 * If called for the top level of a system (such as the filesystem root
484 * or a uri like sftp://host/) it will return a single directory separator
485 * (and on Windows, possibly a drive letter).
487 * The base name is a byte string (not UTF-8). It has no defined encoding
488 * or rules other than it may not contain zero bytes. If you want to use
489 * filenames in a user interface you should use the display name that you
490 * can get by requesting the %G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME
491 * attribute with g_file_query_info().
493 * This call does no blocking I/O.
495 * Returns: (type filename) (nullable): string containing the #GFile's
496 * base name, or %NULL if given #GFile is invalid. The returned string
497 * should be freed with g_free() when no longer needed.
499 char *
500 g_file_get_basename (GFile *file)
502 GFileIface *iface;
504 g_return_val_if_fail (G_IS_FILE (file), NULL);
506 iface = G_FILE_GET_IFACE (file);
508 return (* iface->get_basename) (file);
512 * g_file_get_path:
513 * @file: input #GFile
515 * Gets the local pathname for #GFile, if one exists. If non-%NULL, this is
516 * guaranteed to be an absolute, canonical path. It might contain symlinks.
518 * This call does no blocking I/O.
520 * Returns: (type filename) (nullable): string containing the #GFile's path,
521 * or %NULL if no such path exists. The returned string should be freed
522 * with g_free() when no longer needed.
524 char *
525 g_file_get_path (GFile *file)
527 GFileIface *iface;
529 g_return_val_if_fail (G_IS_FILE (file), NULL);
531 iface = G_FILE_GET_IFACE (file);
533 return (* iface->get_path) (file);
537 * g_file_get_uri:
538 * @file: input #GFile
540 * Gets the URI for the @file.
542 * This call does no blocking I/O.
544 * Returns: a string containing the #GFile's URI.
545 * The returned string should be freed with g_free()
546 * when no longer needed.
548 char *
549 g_file_get_uri (GFile *file)
551 GFileIface *iface;
553 g_return_val_if_fail (G_IS_FILE (file), NULL);
555 iface = G_FILE_GET_IFACE (file);
557 return (* iface->get_uri) (file);
561 * g_file_get_parse_name:
562 * @file: input #GFile
564 * Gets the parse name of the @file.
565 * A parse name is a UTF-8 string that describes the
566 * file such that one can get the #GFile back using
567 * g_file_parse_name().
569 * This is generally used to show the #GFile as a nice
570 * full-pathname kind of string in a user interface,
571 * like in a location entry.
573 * For local files with names that can safely be converted
574 * to UTF-8 the pathname is used, otherwise the IRI is used
575 * (a form of URI that allows UTF-8 characters unescaped).
577 * This call does no blocking I/O.
579 * Returns: a string containing the #GFile's parse name.
580 * The returned string should be freed with g_free()
581 * when no longer needed.
583 char *
584 g_file_get_parse_name (GFile *file)
586 GFileIface *iface;
588 g_return_val_if_fail (G_IS_FILE (file), NULL);
590 iface = G_FILE_GET_IFACE (file);
592 return (* iface->get_parse_name) (file);
596 * g_file_dup:
597 * @file: input #GFile
599 * Duplicates a #GFile handle. This operation does not duplicate
600 * the actual file or directory represented by the #GFile; see
601 * g_file_copy() if attempting to copy a file.
603 * This call does no blocking I/O.
605 * Returns: (transfer full): a new #GFile that is a duplicate
606 * of the given #GFile.
608 GFile *
609 g_file_dup (GFile *file)
611 GFileIface *iface;
613 g_return_val_if_fail (G_IS_FILE (file), NULL);
615 iface = G_FILE_GET_IFACE (file);
617 return (* iface->dup) (file);
621 * g_file_hash:
622 * @file: (type GFile): #gconstpointer to a #GFile
624 * Creates a hash value for a #GFile.
626 * This call does no blocking I/O.
628 * Virtual: hash
629 * Returns: 0 if @file is not a valid #GFile, otherwise an
630 * integer that can be used as hash value for the #GFile.
631 * This function is intended for easily hashing a #GFile to
632 * add to a #GHashTable or similar data structure.
634 guint
635 g_file_hash (gconstpointer file)
637 GFileIface *iface;
639 g_return_val_if_fail (G_IS_FILE (file), 0);
641 iface = G_FILE_GET_IFACE (file);
643 return (* iface->hash) ((GFile *)file);
647 * g_file_equal:
648 * @file1: the first #GFile
649 * @file2: the second #GFile
651 * Checks if the two given #GFiles refer to the same file.
653 * Note that two #GFiles that differ can still refer to the same
654 * file on the filesystem due to various forms of filename
655 * aliasing.
657 * This call does no blocking I/O.
659 * Returns: %TRUE if @file1 and @file2 are equal.
661 gboolean
662 g_file_equal (GFile *file1,
663 GFile *file2)
665 GFileIface *iface;
667 g_return_val_if_fail (G_IS_FILE (file1), FALSE);
668 g_return_val_if_fail (G_IS_FILE (file2), FALSE);
670 if (file1 == file2)
671 return TRUE;
673 if (G_TYPE_FROM_INSTANCE (file1) != G_TYPE_FROM_INSTANCE (file2))
674 return FALSE;
676 iface = G_FILE_GET_IFACE (file1);
678 return (* iface->equal) (file1, file2);
683 * g_file_get_parent:
684 * @file: input #GFile
686 * Gets the parent directory for the @file.
687 * If the @file represents the root directory of the
688 * file system, then %NULL will be returned.
690 * This call does no blocking I/O.
692 * Returns: (nullable) (transfer full): a #GFile structure to the
693 * parent of the given #GFile or %NULL if there is no parent. Free
694 * the returned object with g_object_unref().
696 GFile *
697 g_file_get_parent (GFile *file)
699 GFileIface *iface;
701 g_return_val_if_fail (G_IS_FILE (file), NULL);
703 iface = G_FILE_GET_IFACE (file);
705 return (* iface->get_parent) (file);
709 * g_file_has_parent:
710 * @file: input #GFile
711 * @parent: (nullable): the parent to check for, or %NULL
713 * Checks if @file has a parent, and optionally, if it is @parent.
715 * If @parent is %NULL then this function returns %TRUE if @file has any
716 * parent at all. If @parent is non-%NULL then %TRUE is only returned
717 * if @file is an immediate child of @parent.
719 * Returns: %TRUE if @file is an immediate child of @parent (or any parent in
720 * the case that @parent is %NULL).
722 * Since: 2.24
724 gboolean
725 g_file_has_parent (GFile *file,
726 GFile *parent)
728 GFile *actual_parent;
729 gboolean result;
731 g_return_val_if_fail (G_IS_FILE (file), FALSE);
732 g_return_val_if_fail (parent == NULL || G_IS_FILE (parent), FALSE);
734 actual_parent = g_file_get_parent (file);
736 if (actual_parent != NULL)
738 if (parent != NULL)
739 result = g_file_equal (parent, actual_parent);
740 else
741 result = TRUE;
743 g_object_unref (actual_parent);
745 else
746 result = FALSE;
748 return result;
752 * g_file_get_child:
753 * @file: input #GFile
754 * @name: (type filename): string containing the child's basename
756 * Gets a child of @file with basename equal to @name.
758 * Note that the file with that specific name might not exist, but
759 * you can still have a #GFile that points to it. You can use this
760 * for instance to create that file.
762 * This call does no blocking I/O.
764 * Returns: (transfer full): a #GFile to a child specified by @name.
765 * Free the returned object with g_object_unref().
767 GFile *
768 g_file_get_child (GFile *file,
769 const char *name)
771 g_return_val_if_fail (G_IS_FILE (file), NULL);
772 g_return_val_if_fail (name != NULL, NULL);
774 return g_file_resolve_relative_path (file, name);
778 * g_file_get_child_for_display_name:
779 * @file: input #GFile
780 * @display_name: string to a possible child
781 * @error: return location for an error
783 * Gets the child of @file for a given @display_name (i.e. a UTF-8
784 * version of the name). If this function fails, it returns %NULL
785 * and @error will be set. This is very useful when constructing a
786 * #GFile for a new file and the user entered the filename in the
787 * user interface, for instance when you select a directory and
788 * type a filename in the file selector.
790 * This call does no blocking I/O.
792 * Returns: (transfer full): a #GFile to the specified child, or
793 * %NULL if the display name couldn't be converted.
794 * Free the returned object with g_object_unref().
796 GFile *
797 g_file_get_child_for_display_name (GFile *file,
798 const char *display_name,
799 GError **error)
801 GFileIface *iface;
803 g_return_val_if_fail (G_IS_FILE (file), NULL);
804 g_return_val_if_fail (display_name != NULL, NULL);
806 iface = G_FILE_GET_IFACE (file);
808 return (* iface->get_child_for_display_name) (file, display_name, error);
812 * g_file_has_prefix:
813 * @file: input #GFile
814 * @prefix: input #GFile
816 * Checks whether @file has the prefix specified by @prefix.
818 * In other words, if the names of initial elements of @file's
819 * pathname match @prefix. Only full pathname elements are matched,
820 * so a path like /foo is not considered a prefix of /foobar, only
821 * of /foo/bar.
823 * A #GFile is not a prefix of itself. If you want to check for
824 * equality, use g_file_equal().
826 * This call does no I/O, as it works purely on names. As such it can
827 * sometimes return %FALSE even if @file is inside a @prefix (from a
828 * filesystem point of view), because the prefix of @file is an alias
829 * of @prefix.
831 * Virtual: prefix_matches
832 * Returns: %TRUE if the @files's parent, grandparent, etc is @prefix,
833 * %FALSE otherwise.
835 gboolean
836 g_file_has_prefix (GFile *file,
837 GFile *prefix)
839 GFileIface *iface;
841 g_return_val_if_fail (G_IS_FILE (file), FALSE);
842 g_return_val_if_fail (G_IS_FILE (prefix), FALSE);
844 if (G_TYPE_FROM_INSTANCE (file) != G_TYPE_FROM_INSTANCE (prefix))
845 return FALSE;
847 iface = G_FILE_GET_IFACE (file);
849 /* The vtable function differs in arg order since
850 * we're using the old contains_file call
852 return (* iface->prefix_matches) (prefix, file);
856 * g_file_get_relative_path:
857 * @parent: input #GFile
858 * @descendant: input #GFile
860 * Gets the path for @descendant relative to @parent.
862 * This call does no blocking I/O.
864 * Returns: (type filename) (nullable): string with the relative path from
865 * @descendant to @parent, or %NULL if @descendant doesn't have @parent as
866 * prefix. The returned string should be freed with g_free() when
867 * no longer needed.
869 char *
870 g_file_get_relative_path (GFile *parent,
871 GFile *descendant)
873 GFileIface *iface;
875 g_return_val_if_fail (G_IS_FILE (parent), NULL);
876 g_return_val_if_fail (G_IS_FILE (descendant), NULL);
878 if (G_TYPE_FROM_INSTANCE (parent) != G_TYPE_FROM_INSTANCE (descendant))
879 return NULL;
881 iface = G_FILE_GET_IFACE (parent);
883 return (* iface->get_relative_path) (parent, descendant);
887 * g_file_resolve_relative_path:
888 * @file: input #GFile
889 * @relative_path: (type filename): a given relative path string
891 * Resolves a relative path for @file to an absolute path.
893 * This call does no blocking I/O.
895 * Returns: (transfer full): #GFile to the resolved path.
896 * %NULL if @relative_path is %NULL or if @file is invalid.
897 * Free the returned object with g_object_unref().
899 GFile *
900 g_file_resolve_relative_path (GFile *file,
901 const char *relative_path)
903 GFileIface *iface;
905 g_return_val_if_fail (G_IS_FILE (file), NULL);
906 g_return_val_if_fail (relative_path != NULL, NULL);
908 iface = G_FILE_GET_IFACE (file);
910 return (* iface->resolve_relative_path) (file, relative_path);
914 * g_file_enumerate_children:
915 * @file: input #GFile
916 * @attributes: an attribute query string
917 * @flags: a set of #GFileQueryInfoFlags
918 * @cancellable: (nullable): optional #GCancellable object,
919 * %NULL to ignore
920 * @error: #GError for error reporting
922 * Gets the requested information about the files in a directory.
923 * The result is a #GFileEnumerator object that will give out
924 * #GFileInfo objects for all the files in the directory.
926 * The @attributes value is a string that specifies the file
927 * attributes that should be gathered. It is not an error if
928 * it's not possible to read a particular requested attribute
929 * from a file - it just won't be set. @attributes should
930 * be a comma-separated list of attributes or attribute wildcards.
931 * The wildcard "*" means all attributes, and a wildcard like
932 * "standard::*" means all attributes in the standard namespace.
933 * An example attribute query be "standard::*,owner::user".
934 * The standard attributes are available as defines, like
935 * #G_FILE_ATTRIBUTE_STANDARD_NAME.
937 * If @cancellable is not %NULL, then the operation can be cancelled
938 * by triggering the cancellable object from another thread. If the
939 * operation was cancelled, the error %G_IO_ERROR_CANCELLED will be
940 * returned.
942 * If the file does not exist, the %G_IO_ERROR_NOT_FOUND error will
943 * be returned. If the file is not a directory, the %G_IO_ERROR_NOT_DIRECTORY
944 * error will be returned. Other errors are possible too.
946 * Returns: (transfer full): A #GFileEnumerator if successful,
947 * %NULL on error. Free the returned object with g_object_unref().
949 GFileEnumerator *
950 g_file_enumerate_children (GFile *file,
951 const char *attributes,
952 GFileQueryInfoFlags flags,
953 GCancellable *cancellable,
954 GError **error)
956 GFileIface *iface;
958 g_return_val_if_fail (G_IS_FILE (file), NULL);
960 if (g_cancellable_set_error_if_cancelled (cancellable, error))
961 return NULL;
963 iface = G_FILE_GET_IFACE (file);
965 if (iface->enumerate_children == NULL)
967 g_set_error_literal (error, G_IO_ERROR,
968 G_IO_ERROR_NOT_SUPPORTED,
969 _("Operation not supported"));
970 return NULL;
973 return (* iface->enumerate_children) (file, attributes, flags,
974 cancellable, error);
978 * g_file_enumerate_children_async:
979 * @file: input #GFile
980 * @attributes: an attribute query string
981 * @flags: a set of #GFileQueryInfoFlags
982 * @io_priority: the [I/O priority][io-priority] of the request
983 * @cancellable: (nullable): optional #GCancellable object,
984 * %NULL to ignore
985 * @callback: (scope async): a #GAsyncReadyCallback to call when the
986 * request is satisfied
987 * @user_data: (closure): the data to pass to callback function
989 * Asynchronously gets the requested information about the files
990 * in a directory. The result is a #GFileEnumerator object that will
991 * give out #GFileInfo objects for all the files in the directory.
993 * For more details, see g_file_enumerate_children() which is
994 * the synchronous version of this call.
996 * When the operation is finished, @callback will be called. You can
997 * then call g_file_enumerate_children_finish() to get the result of
998 * the operation.
1000 void
1001 g_file_enumerate_children_async (GFile *file,
1002 const char *attributes,
1003 GFileQueryInfoFlags flags,
1004 int io_priority,
1005 GCancellable *cancellable,
1006 GAsyncReadyCallback callback,
1007 gpointer user_data)
1009 GFileIface *iface;
1011 g_return_if_fail (G_IS_FILE (file));
1013 iface = G_FILE_GET_IFACE (file);
1014 (* iface->enumerate_children_async) (file,
1015 attributes,
1016 flags,
1017 io_priority,
1018 cancellable,
1019 callback,
1020 user_data);
1024 * g_file_enumerate_children_finish:
1025 * @file: input #GFile
1026 * @res: a #GAsyncResult
1027 * @error: a #GError
1029 * Finishes an async enumerate children operation.
1030 * See g_file_enumerate_children_async().
1032 * Returns: (transfer full): a #GFileEnumerator or %NULL
1033 * if an error occurred.
1034 * Free the returned object with g_object_unref().
1036 GFileEnumerator *
1037 g_file_enumerate_children_finish (GFile *file,
1038 GAsyncResult *res,
1039 GError **error)
1041 GFileIface *iface;
1043 g_return_val_if_fail (G_IS_FILE (file), NULL);
1044 g_return_val_if_fail (G_IS_ASYNC_RESULT (res), NULL);
1046 if (g_async_result_legacy_propagate_error (res, error))
1047 return NULL;
1049 iface = G_FILE_GET_IFACE (file);
1050 return (* iface->enumerate_children_finish) (file, res, error);
1054 * g_file_query_exists:
1055 * @file: input #GFile
1056 * @cancellable: (nullable): optional #GCancellable object,
1057 * %NULL to ignore
1059 * Utility function to check if a particular file exists. This is
1060 * implemented using g_file_query_info() and as such does blocking I/O.
1062 * Note that in many cases it is racy to first check for file existence
1063 * and then execute something based on the outcome of that, because the
1064 * file might have been created or removed in between the operations. The
1065 * general approach to handling that is to not check, but just do the
1066 * operation and handle the errors as they come.
1068 * As an example of race-free checking, take the case of reading a file,
1069 * and if it doesn't exist, creating it. There are two racy versions: read
1070 * it, and on error create it; and: check if it exists, if not create it.
1071 * These can both result in two processes creating the file (with perhaps
1072 * a partially written file as the result). The correct approach is to
1073 * always try to create the file with g_file_create() which will either
1074 * atomically create the file or fail with a %G_IO_ERROR_EXISTS error.
1076 * However, in many cases an existence check is useful in a user interface,
1077 * for instance to make a menu item sensitive/insensitive, so that you don't
1078 * have to fool users that something is possible and then just show an error
1079 * dialog. If you do this, you should make sure to also handle the errors
1080 * that can happen due to races when you execute the operation.
1082 * Returns: %TRUE if the file exists (and can be detected without error),
1083 * %FALSE otherwise (or if cancelled).
1085 gboolean
1086 g_file_query_exists (GFile *file,
1087 GCancellable *cancellable)
1089 GFileInfo *info;
1091 g_return_val_if_fail (G_IS_FILE(file), FALSE);
1093 info = g_file_query_info (file, G_FILE_ATTRIBUTE_STANDARD_TYPE,
1094 G_FILE_QUERY_INFO_NONE, cancellable, NULL);
1095 if (info != NULL)
1097 g_object_unref (info);
1098 return TRUE;
1101 return FALSE;
1105 * g_file_query_file_type:
1106 * @file: input #GFile
1107 * @flags: a set of #GFileQueryInfoFlags passed to g_file_query_info()
1108 * @cancellable: (nullable): optional #GCancellable object,
1109 * %NULL to ignore
1111 * Utility function to inspect the #GFileType of a file. This is
1112 * implemented using g_file_query_info() and as such does blocking I/O.
1114 * The primary use case of this method is to check if a file is
1115 * a regular file, directory, or symlink.
1117 * Returns: The #GFileType of the file and #G_FILE_TYPE_UNKNOWN
1118 * if the file does not exist
1120 * Since: 2.18
1122 GFileType
1123 g_file_query_file_type (GFile *file,
1124 GFileQueryInfoFlags flags,
1125 GCancellable *cancellable)
1127 GFileInfo *info;
1128 GFileType file_type;
1130 g_return_val_if_fail (G_IS_FILE(file), G_FILE_TYPE_UNKNOWN);
1131 info = g_file_query_info (file, G_FILE_ATTRIBUTE_STANDARD_TYPE, flags,
1132 cancellable, NULL);
1133 if (info != NULL)
1135 file_type = g_file_info_get_file_type (info);
1136 g_object_unref (info);
1138 else
1139 file_type = G_FILE_TYPE_UNKNOWN;
1141 return file_type;
1145 * g_file_query_info:
1146 * @file: input #GFile
1147 * @attributes: an attribute query string
1148 * @flags: a set of #GFileQueryInfoFlags
1149 * @cancellable: (nullable): optional #GCancellable object,
1150 * %NULL to ignore
1151 * @error: a #GError
1153 * Gets the requested information about specified @file.
1154 * The result is a #GFileInfo object that contains key-value
1155 * attributes (such as the type or size of the file).
1157 * The @attributes value is a string that specifies the file
1158 * attributes that should be gathered. It is not an error if
1159 * it's not possible to read a particular requested attribute
1160 * from a file - it just won't be set. @attributes should be a
1161 * comma-separated list of attributes or attribute wildcards.
1162 * The wildcard "*" means all attributes, and a wildcard like
1163 * "standard::*" means all attributes in the standard namespace.
1164 * An example attribute query be "standard::*,owner::user".
1165 * The standard attributes are available as defines, like
1166 * #G_FILE_ATTRIBUTE_STANDARD_NAME.
1168 * If @cancellable is not %NULL, then the operation can be cancelled
1169 * by triggering the cancellable object from another thread. If the
1170 * operation was cancelled, the error %G_IO_ERROR_CANCELLED will be
1171 * returned.
1173 * For symlinks, normally the information about the target of the
1174 * symlink is returned, rather than information about the symlink
1175 * itself. However if you pass #G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS
1176 * in @flags the information about the symlink itself will be returned.
1177 * Also, for symlinks that point to non-existing files the information
1178 * about the symlink itself will be returned.
1180 * If the file does not exist, the %G_IO_ERROR_NOT_FOUND error will be
1181 * returned. Other errors are possible too, and depend on what kind of
1182 * filesystem the file is on.
1184 * Returns: (transfer full): a #GFileInfo for the given @file, or %NULL
1185 * on error. Free the returned object with g_object_unref().
1187 GFileInfo *
1188 g_file_query_info (GFile *file,
1189 const char *attributes,
1190 GFileQueryInfoFlags flags,
1191 GCancellable *cancellable,
1192 GError **error)
1194 GFileIface *iface;
1196 g_return_val_if_fail (G_IS_FILE (file), NULL);
1198 if (g_cancellable_set_error_if_cancelled (cancellable, error))
1199 return NULL;
1201 iface = G_FILE_GET_IFACE (file);
1203 if (iface->query_info == NULL)
1205 g_set_error_literal (error, G_IO_ERROR,
1206 G_IO_ERROR_NOT_SUPPORTED,
1207 _("Operation not supported"));
1208 return NULL;
1211 return (* iface->query_info) (file, attributes, flags, cancellable, error);
1215 * g_file_query_info_async:
1216 * @file: input #GFile
1217 * @attributes: an attribute query string
1218 * @flags: a set of #GFileQueryInfoFlags
1219 * @io_priority: the [I/O priority][io-priority] of the request
1220 * @cancellable: (nullable): optional #GCancellable object,
1221 * %NULL to ignore
1222 * @callback: (scope async): a #GAsyncReadyCallback to call when the
1223 * request is satisfied
1224 * @user_data: (closure): the data to pass to callback function
1226 * Asynchronously gets the requested information about specified @file.
1227 * The result is a #GFileInfo object that contains key-value attributes
1228 * (such as type or size for the file).
1230 * For more details, see g_file_query_info() which is the synchronous
1231 * version of this call.
1233 * When the operation is finished, @callback will be called. You can
1234 * then call g_file_query_info_finish() to get the result of the operation.
1236 void
1237 g_file_query_info_async (GFile *file,
1238 const char *attributes,
1239 GFileQueryInfoFlags flags,
1240 int io_priority,
1241 GCancellable *cancellable,
1242 GAsyncReadyCallback callback,
1243 gpointer user_data)
1245 GFileIface *iface;
1247 g_return_if_fail (G_IS_FILE (file));
1249 iface = G_FILE_GET_IFACE (file);
1250 (* iface->query_info_async) (file,
1251 attributes,
1252 flags,
1253 io_priority,
1254 cancellable,
1255 callback,
1256 user_data);
1260 * g_file_query_info_finish:
1261 * @file: input #GFile
1262 * @res: a #GAsyncResult
1263 * @error: a #GError
1265 * Finishes an asynchronous file info query.
1266 * See g_file_query_info_async().
1268 * Returns: (transfer full): #GFileInfo for given @file
1269 * or %NULL on error. Free the returned object with
1270 * g_object_unref().
1272 GFileInfo *
1273 g_file_query_info_finish (GFile *file,
1274 GAsyncResult *res,
1275 GError **error)
1277 GFileIface *iface;
1279 g_return_val_if_fail (G_IS_FILE (file), NULL);
1280 g_return_val_if_fail (G_IS_ASYNC_RESULT (res), NULL);
1282 if (g_async_result_legacy_propagate_error (res, error))
1283 return NULL;
1285 iface = G_FILE_GET_IFACE (file);
1286 return (* iface->query_info_finish) (file, res, error);
1290 * g_file_query_filesystem_info:
1291 * @file: input #GFile
1292 * @attributes: an attribute query string
1293 * @cancellable: (nullable): optional #GCancellable object,
1294 * %NULL to ignore
1295 * @error: a #GError
1297 * Similar to g_file_query_info(), but obtains information
1298 * about the filesystem the @file is on, rather than the file itself.
1299 * For instance the amount of space available and the type of
1300 * the filesystem.
1302 * The @attributes value is a string that specifies the attributes
1303 * that should be gathered. It is not an error if it's not possible
1304 * to read a particular requested attribute from a file - it just
1305 * won't be set. @attributes should be a comma-separated list of
1306 * attributes or attribute wildcards. The wildcard "*" means all
1307 * attributes, and a wildcard like "filesystem::*" means all attributes
1308 * in the filesystem namespace. The standard namespace for filesystem
1309 * attributes is "filesystem". Common attributes of interest are
1310 * #G_FILE_ATTRIBUTE_FILESYSTEM_SIZE (the total size of the filesystem
1311 * in bytes), #G_FILE_ATTRIBUTE_FILESYSTEM_FREE (number of bytes available),
1312 * and #G_FILE_ATTRIBUTE_FILESYSTEM_TYPE (type of the filesystem).
1314 * If @cancellable is not %NULL, then the operation can be cancelled
1315 * by triggering the cancellable object from another thread. If the
1316 * operation was cancelled, the error %G_IO_ERROR_CANCELLED will be
1317 * returned.
1319 * If the file does not exist, the %G_IO_ERROR_NOT_FOUND error will
1320 * be returned. Other errors are possible too, and depend on what
1321 * kind of filesystem the file is on.
1323 * Returns: (transfer full): a #GFileInfo or %NULL if there was an error.
1324 * Free the returned object with g_object_unref().
1326 GFileInfo *
1327 g_file_query_filesystem_info (GFile *file,
1328 const char *attributes,
1329 GCancellable *cancellable,
1330 GError **error)
1332 GFileIface *iface;
1334 g_return_val_if_fail (G_IS_FILE (file), NULL);
1336 if (g_cancellable_set_error_if_cancelled (cancellable, error))
1337 return NULL;
1339 iface = G_FILE_GET_IFACE (file);
1341 if (iface->query_filesystem_info == NULL)
1343 g_set_error_literal (error, G_IO_ERROR,
1344 G_IO_ERROR_NOT_SUPPORTED,
1345 _("Operation not supported"));
1346 return NULL;
1349 return (* iface->query_filesystem_info) (file, attributes, cancellable, error);
1353 * g_file_query_filesystem_info_async:
1354 * @file: input #GFile
1355 * @attributes: an attribute query string
1356 * @io_priority: the [I/O priority][io-priority] of the request
1357 * @cancellable: (nullable): optional #GCancellable object,
1358 * %NULL to ignore
1359 * @callback: (scope async): a #GAsyncReadyCallback to call
1360 * when the request is satisfied
1361 * @user_data: (closure): the data to pass to callback function
1363 * Asynchronously gets the requested information about the filesystem
1364 * that the specified @file is on. The result is a #GFileInfo object
1365 * that contains key-value attributes (such as type or size for the
1366 * file).
1368 * For more details, see g_file_query_filesystem_info() which is the
1369 * synchronous version of this call.
1371 * When the operation is finished, @callback will be called. You can
1372 * then call g_file_query_info_finish() to get the result of the
1373 * operation.
1375 void
1376 g_file_query_filesystem_info_async (GFile *file,
1377 const char *attributes,
1378 int io_priority,
1379 GCancellable *cancellable,
1380 GAsyncReadyCallback callback,
1381 gpointer user_data)
1383 GFileIface *iface;
1385 g_return_if_fail (G_IS_FILE (file));
1387 iface = G_FILE_GET_IFACE (file);
1388 (* iface->query_filesystem_info_async) (file,
1389 attributes,
1390 io_priority,
1391 cancellable,
1392 callback,
1393 user_data);
1397 * g_file_query_filesystem_info_finish:
1398 * @file: input #GFile
1399 * @res: a #GAsyncResult
1400 * @error: a #GError
1402 * Finishes an asynchronous filesystem info query.
1403 * See g_file_query_filesystem_info_async().
1405 * Returns: (transfer full): #GFileInfo for given @file
1406 * or %NULL on error.
1407 * Free the returned object with g_object_unref().
1409 GFileInfo *
1410 g_file_query_filesystem_info_finish (GFile *file,
1411 GAsyncResult *res,
1412 GError **error)
1414 GFileIface *iface;
1416 g_return_val_if_fail (G_IS_FILE (file), NULL);
1417 g_return_val_if_fail (G_IS_ASYNC_RESULT (res), NULL);
1419 if (g_async_result_legacy_propagate_error (res, error))
1420 return NULL;
1422 iface = G_FILE_GET_IFACE (file);
1423 return (* iface->query_filesystem_info_finish) (file, res, error);
1427 * g_file_find_enclosing_mount:
1428 * @file: input #GFile
1429 * @cancellable: (nullable): optional #GCancellable object,
1430 * %NULL to ignore
1431 * @error: a #GError
1433 * Gets a #GMount for the #GFile.
1435 * If the #GFileIface for @file does not have a mount (e.g.
1436 * possibly a remote share), @error will be set to %G_IO_ERROR_NOT_FOUND
1437 * and %NULL will be returned.
1439 * If @cancellable is not %NULL, then the operation can be cancelled by
1440 * triggering the cancellable object from another thread. If the operation
1441 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
1443 * Returns: (transfer full): a #GMount where the @file is located
1444 * or %NULL on error.
1445 * Free the returned object with g_object_unref().
1447 GMount *
1448 g_file_find_enclosing_mount (GFile *file,
1449 GCancellable *cancellable,
1450 GError **error)
1452 GFileIface *iface;
1454 g_return_val_if_fail (G_IS_FILE (file), NULL);
1456 if (g_cancellable_set_error_if_cancelled (cancellable, error))
1457 return NULL;
1459 iface = G_FILE_GET_IFACE (file);
1460 if (iface->find_enclosing_mount == NULL)
1463 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
1464 /* Translators: This is an error message when
1465 * trying to find the enclosing (user visible)
1466 * mount of a file, but none exists.
1468 _("Containing mount does not exist"));
1469 return NULL;
1472 return (* iface->find_enclosing_mount) (file, cancellable, error);
1476 * g_file_find_enclosing_mount_async:
1477 * @file: a #GFile
1478 * @io_priority: the [I/O priority][io-priority] of the request
1479 * @cancellable: (nullable): optional #GCancellable object,
1480 * %NULL to ignore
1481 * @callback: (scope async): a #GAsyncReadyCallback to call
1482 * when the request is satisfied
1483 * @user_data: (closure): the data to pass to callback function
1485 * Asynchronously gets the mount for the file.
1487 * For more details, see g_file_find_enclosing_mount() which is
1488 * the synchronous version of this call.
1490 * When the operation is finished, @callback will be called.
1491 * You can then call g_file_find_enclosing_mount_finish() to
1492 * get the result of the operation.
1494 void
1495 g_file_find_enclosing_mount_async (GFile *file,
1496 int io_priority,
1497 GCancellable *cancellable,
1498 GAsyncReadyCallback callback,
1499 gpointer user_data)
1501 GFileIface *iface;
1503 g_return_if_fail (G_IS_FILE (file));
1505 iface = G_FILE_GET_IFACE (file);
1506 (* iface->find_enclosing_mount_async) (file,
1507 io_priority,
1508 cancellable,
1509 callback,
1510 user_data);
1514 * g_file_find_enclosing_mount_finish:
1515 * @file: a #GFile
1516 * @res: a #GAsyncResult
1517 * @error: a #GError
1519 * Finishes an asynchronous find mount request.
1520 * See g_file_find_enclosing_mount_async().
1522 * Returns: (transfer full): #GMount for given @file or %NULL on error.
1523 * Free the returned object with g_object_unref().
1525 GMount *
1526 g_file_find_enclosing_mount_finish (GFile *file,
1527 GAsyncResult *res,
1528 GError **error)
1530 GFileIface *iface;
1532 g_return_val_if_fail (G_IS_FILE (file), NULL);
1533 g_return_val_if_fail (G_IS_ASYNC_RESULT (res), NULL);
1535 if (g_async_result_legacy_propagate_error (res, error))
1536 return NULL;
1538 iface = G_FILE_GET_IFACE (file);
1539 return (* iface->find_enclosing_mount_finish) (file, res, error);
1544 * g_file_read:
1545 * @file: #GFile to read
1546 * @cancellable: (nullable): a #GCancellable
1547 * @error: a #GError, or %NULL
1549 * Opens a file for reading. The result is a #GFileInputStream that
1550 * can be used to read the contents of the file.
1552 * If @cancellable is not %NULL, then the operation can be cancelled by
1553 * triggering the cancellable object from another thread. If the operation
1554 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
1556 * If the file does not exist, the %G_IO_ERROR_NOT_FOUND error will be
1557 * returned. If the file is a directory, the %G_IO_ERROR_IS_DIRECTORY
1558 * error will be returned. Other errors are possible too, and depend
1559 * on what kind of filesystem the file is on.
1561 * Virtual: read_fn
1562 * Returns: (transfer full): #GFileInputStream or %NULL on error.
1563 * Free the returned object with g_object_unref().
1565 GFileInputStream *
1566 g_file_read (GFile *file,
1567 GCancellable *cancellable,
1568 GError **error)
1570 GFileIface *iface;
1572 g_return_val_if_fail (G_IS_FILE (file), NULL);
1574 if (g_cancellable_set_error_if_cancelled (cancellable, error))
1575 return NULL;
1577 iface = G_FILE_GET_IFACE (file);
1579 if (iface->read_fn == NULL)
1581 g_set_error_literal (error, G_IO_ERROR,
1582 G_IO_ERROR_NOT_SUPPORTED,
1583 _("Operation not supported"));
1584 return NULL;
1587 return (* iface->read_fn) (file, cancellable, error);
1591 * g_file_append_to:
1592 * @file: input #GFile
1593 * @flags: a set of #GFileCreateFlags
1594 * @cancellable: (nullable): optional #GCancellable object,
1595 * %NULL to ignore
1596 * @error: a #GError, or %NULL
1598 * Gets an output stream for appending data to the file.
1599 * If the file doesn't already exist it is created.
1601 * By default files created are generally readable by everyone,
1602 * but if you pass #G_FILE_CREATE_PRIVATE in @flags the file
1603 * will be made readable only to the current user, to the level that
1604 * is supported on the target filesystem.
1606 * If @cancellable is not %NULL, then the operation can be cancelled
1607 * by triggering the cancellable object from another thread. If the
1608 * operation was cancelled, the error %G_IO_ERROR_CANCELLED will be
1609 * returned.
1611 * Some file systems don't allow all file names, and may return an
1612 * %G_IO_ERROR_INVALID_FILENAME error. If the file is a directory the
1613 * %G_IO_ERROR_IS_DIRECTORY error will be returned. Other errors are
1614 * possible too, and depend on what kind of filesystem the file is on.
1616 * Returns: (transfer full): a #GFileOutputStream, or %NULL on error.
1617 * Free the returned object with g_object_unref().
1619 GFileOutputStream *
1620 g_file_append_to (GFile *file,
1621 GFileCreateFlags flags,
1622 GCancellable *cancellable,
1623 GError **error)
1625 GFileIface *iface;
1627 g_return_val_if_fail (G_IS_FILE (file), NULL);
1629 if (g_cancellable_set_error_if_cancelled (cancellable, error))
1630 return NULL;
1632 iface = G_FILE_GET_IFACE (file);
1634 if (iface->append_to == NULL)
1636 g_set_error_literal (error, G_IO_ERROR,
1637 G_IO_ERROR_NOT_SUPPORTED,
1638 _("Operation not supported"));
1639 return NULL;
1642 return (* iface->append_to) (file, flags, cancellable, error);
1646 * g_file_create:
1647 * @file: input #GFile
1648 * @flags: a set of #GFileCreateFlags
1649 * @cancellable: (nullable): optional #GCancellable object,
1650 * %NULL to ignore
1651 * @error: a #GError, or %NULL
1653 * Creates a new file and returns an output stream for writing to it.
1654 * The file must not already exist.
1656 * By default files created are generally readable by everyone,
1657 * but if you pass #G_FILE_CREATE_PRIVATE in @flags the file
1658 * will be made readable only to the current user, to the level
1659 * that is supported on the target filesystem.
1661 * If @cancellable is not %NULL, then the operation can be cancelled
1662 * by triggering the cancellable object from another thread. If the
1663 * operation was cancelled, the error %G_IO_ERROR_CANCELLED will be
1664 * returned.
1666 * If a file or directory with this name already exists the
1667 * %G_IO_ERROR_EXISTS error will be returned. Some file systems don't
1668 * allow all file names, and may return an %G_IO_ERROR_INVALID_FILENAME
1669 * error, and if the name is to long %G_IO_ERROR_FILENAME_TOO_LONG will
1670 * be returned. Other errors are possible too, and depend on what kind
1671 * of filesystem the file is on.
1673 * Returns: (transfer full): a #GFileOutputStream for the newly created
1674 * file, or %NULL on error.
1675 * Free the returned object with g_object_unref().
1677 GFileOutputStream *
1678 g_file_create (GFile *file,
1679 GFileCreateFlags flags,
1680 GCancellable *cancellable,
1681 GError **error)
1683 GFileIface *iface;
1685 g_return_val_if_fail (G_IS_FILE (file), NULL);
1687 if (g_cancellable_set_error_if_cancelled (cancellable, error))
1688 return NULL;
1690 iface = G_FILE_GET_IFACE (file);
1692 if (iface->create == NULL)
1694 g_set_error_literal (error, G_IO_ERROR,
1695 G_IO_ERROR_NOT_SUPPORTED,
1696 _("Operation not supported"));
1697 return NULL;
1700 return (* iface->create) (file, flags, cancellable, error);
1704 * g_file_replace:
1705 * @file: input #GFile
1706 * @etag: (nullable): an optional [entity tag][gfile-etag]
1707 * for the current #GFile, or #NULL to ignore
1708 * @make_backup: %TRUE if a backup should be created
1709 * @flags: a set of #GFileCreateFlags
1710 * @cancellable: (nullable): optional #GCancellable object,
1711 * %NULL to ignore
1712 * @error: a #GError, or %NULL
1714 * Returns an output stream for overwriting the file, possibly
1715 * creating a backup copy of the file first. If the file doesn't exist,
1716 * it will be created.
1718 * This will try to replace the file in the safest way possible so
1719 * that any errors during the writing will not affect an already
1720 * existing copy of the file. For instance, for local files it
1721 * may write to a temporary file and then atomically rename over
1722 * the destination when the stream is closed.
1724 * By default files created are generally readable by everyone,
1725 * but if you pass #G_FILE_CREATE_PRIVATE in @flags the file
1726 * will be made readable only to the current user, to the level that
1727 * is supported on the target filesystem.
1729 * If @cancellable is not %NULL, then the operation can be cancelled
1730 * by triggering the cancellable object from another thread. If the
1731 * operation was cancelled, the error %G_IO_ERROR_CANCELLED will be
1732 * returned.
1734 * If you pass in a non-%NULL @etag value and @file already exists, then
1735 * this value is compared to the current entity tag of the file, and if
1736 * they differ an %G_IO_ERROR_WRONG_ETAG error is returned. This
1737 * generally means that the file has been changed since you last read
1738 * it. You can get the new etag from g_file_output_stream_get_etag()
1739 * after you've finished writing and closed the #GFileOutputStream. When
1740 * you load a new file you can use g_file_input_stream_query_info() to
1741 * get the etag of the file.
1743 * If @make_backup is %TRUE, this function will attempt to make a
1744 * backup of the current file before overwriting it. If this fails
1745 * a %G_IO_ERROR_CANT_CREATE_BACKUP error will be returned. If you
1746 * want to replace anyway, try again with @make_backup set to %FALSE.
1748 * If the file is a directory the %G_IO_ERROR_IS_DIRECTORY error will
1749 * be returned, and if the file is some other form of non-regular file
1750 * then a %G_IO_ERROR_NOT_REGULAR_FILE error will be returned. Some
1751 * file systems don't allow all file names, and may return an
1752 * %G_IO_ERROR_INVALID_FILENAME error, and if the name is to long
1753 * %G_IO_ERROR_FILENAME_TOO_LONG will be returned. Other errors are
1754 * possible too, and depend on what kind of filesystem the file is on.
1756 * Returns: (transfer full): a #GFileOutputStream or %NULL on error.
1757 * Free the returned object with g_object_unref().
1759 GFileOutputStream *
1760 g_file_replace (GFile *file,
1761 const char *etag,
1762 gboolean make_backup,
1763 GFileCreateFlags flags,
1764 GCancellable *cancellable,
1765 GError **error)
1767 GFileIface *iface;
1769 g_return_val_if_fail (G_IS_FILE (file), NULL);
1771 if (g_cancellable_set_error_if_cancelled (cancellable, error))
1772 return NULL;
1774 iface = G_FILE_GET_IFACE (file);
1776 if (iface->replace == NULL)
1778 g_set_error_literal (error, G_IO_ERROR,
1779 G_IO_ERROR_NOT_SUPPORTED,
1780 _("Operation not supported"));
1781 return NULL;
1784 /* Handle empty tag string as NULL in consistent way. */
1785 if (etag && *etag == 0)
1786 etag = NULL;
1788 return (* iface->replace) (file, etag, make_backup, flags, cancellable, error);
1792 * g_file_open_readwrite:
1793 * @file: #GFile to open
1794 * @cancellable: (nullable): a #GCancellable
1795 * @error: a #GError, or %NULL
1797 * Opens an existing file for reading and writing. The result is
1798 * a #GFileIOStream that can be used to read and write the contents
1799 * of the file.
1801 * If @cancellable is not %NULL, then the operation can be cancelled
1802 * by triggering the cancellable object from another thread. If the
1803 * operation was cancelled, the error %G_IO_ERROR_CANCELLED will be
1804 * returned.
1806 * If the file does not exist, the %G_IO_ERROR_NOT_FOUND error will
1807 * be returned. If the file is a directory, the %G_IO_ERROR_IS_DIRECTORY
1808 * error will be returned. Other errors are possible too, and depend on
1809 * what kind of filesystem the file is on. Note that in many non-local
1810 * file cases read and write streams are not supported, so make sure you
1811 * really need to do read and write streaming, rather than just opening
1812 * for reading or writing.
1814 * Returns: (transfer full): #GFileIOStream or %NULL on error.
1815 * Free the returned object with g_object_unref().
1817 * Since: 2.22
1819 GFileIOStream *
1820 g_file_open_readwrite (GFile *file,
1821 GCancellable *cancellable,
1822 GError **error)
1824 GFileIface *iface;
1826 g_return_val_if_fail (G_IS_FILE (file), NULL);
1828 if (g_cancellable_set_error_if_cancelled (cancellable, error))
1829 return NULL;
1831 iface = G_FILE_GET_IFACE (file);
1833 if (iface->open_readwrite == NULL)
1835 g_set_error_literal (error, G_IO_ERROR,
1836 G_IO_ERROR_NOT_SUPPORTED,
1837 _("Operation not supported"));
1838 return NULL;
1841 return (* iface->open_readwrite) (file, cancellable, error);
1845 * g_file_create_readwrite:
1846 * @file: a #GFile
1847 * @flags: a set of #GFileCreateFlags
1848 * @cancellable: (nullable): optional #GCancellable object,
1849 * %NULL to ignore
1850 * @error: return location for a #GError, or %NULL
1852 * Creates a new file and returns a stream for reading and
1853 * writing to it. The file must not already exist.
1855 * By default files created are generally readable by everyone,
1856 * but if you pass #G_FILE_CREATE_PRIVATE in @flags the file
1857 * will be made readable only to the current user, to the level
1858 * that is supported on the target filesystem.
1860 * If @cancellable is not %NULL, then the operation can be cancelled
1861 * by triggering the cancellable object from another thread. If the
1862 * operation was cancelled, the error %G_IO_ERROR_CANCELLED will be
1863 * returned.
1865 * If a file or directory with this name already exists, the
1866 * %G_IO_ERROR_EXISTS error will be returned. Some file systems don't
1867 * allow all file names, and may return an %G_IO_ERROR_INVALID_FILENAME
1868 * error, and if the name is too long, %G_IO_ERROR_FILENAME_TOO_LONG
1869 * will be returned. Other errors are possible too, and depend on what
1870 * kind of filesystem the file is on.
1872 * Note that in many non-local file cases read and write streams are
1873 * not supported, so make sure you really need to do read and write
1874 * streaming, rather than just opening for reading or writing.
1876 * Returns: (transfer full): a #GFileIOStream for the newly created
1877 * file, or %NULL on error.
1878 * Free the returned object with g_object_unref().
1880 * Since: 2.22
1882 GFileIOStream *
1883 g_file_create_readwrite (GFile *file,
1884 GFileCreateFlags flags,
1885 GCancellable *cancellable,
1886 GError **error)
1888 GFileIface *iface;
1890 g_return_val_if_fail (G_IS_FILE (file), NULL);
1892 if (g_cancellable_set_error_if_cancelled (cancellable, error))
1893 return NULL;
1895 iface = G_FILE_GET_IFACE (file);
1897 if (iface->create_readwrite == NULL)
1899 g_set_error_literal (error, G_IO_ERROR,
1900 G_IO_ERROR_NOT_SUPPORTED,
1901 _("Operation not supported"));
1902 return NULL;
1905 return (* iface->create_readwrite) (file, flags, cancellable, error);
1909 * g_file_replace_readwrite:
1910 * @file: a #GFile
1911 * @etag: (nullable): an optional [entity tag][gfile-etag]
1912 * for the current #GFile, or #NULL to ignore
1913 * @make_backup: %TRUE if a backup should be created
1914 * @flags: a set of #GFileCreateFlags
1915 * @cancellable: (nullable): optional #GCancellable object,
1916 * %NULL to ignore
1917 * @error: return location for a #GError, or %NULL
1919 * Returns an output stream for overwriting the file in readwrite mode,
1920 * possibly creating a backup copy of the file first. If the file doesn't
1921 * exist, it will be created.
1923 * For details about the behaviour, see g_file_replace() which does the
1924 * same thing but returns an output stream only.
1926 * Note that in many non-local file cases read and write streams are not
1927 * supported, so make sure you really need to do read and write streaming,
1928 * rather than just opening for reading or writing.
1930 * Returns: (transfer full): a #GFileIOStream or %NULL on error.
1931 * Free the returned object with g_object_unref().
1933 * Since: 2.22
1935 GFileIOStream *
1936 g_file_replace_readwrite (GFile *file,
1937 const char *etag,
1938 gboolean make_backup,
1939 GFileCreateFlags flags,
1940 GCancellable *cancellable,
1941 GError **error)
1943 GFileIface *iface;
1945 g_return_val_if_fail (G_IS_FILE (file), NULL);
1947 if (g_cancellable_set_error_if_cancelled (cancellable, error))
1948 return NULL;
1950 iface = G_FILE_GET_IFACE (file);
1952 if (iface->replace_readwrite == NULL)
1954 g_set_error_literal (error, G_IO_ERROR,
1955 G_IO_ERROR_NOT_SUPPORTED,
1956 _("Operation not supported"));
1957 return NULL;
1960 return (* iface->replace_readwrite) (file, etag, make_backup, flags, cancellable, error);
1964 * g_file_read_async:
1965 * @file: input #GFile
1966 * @io_priority: the [I/O priority][io-priority] of the request
1967 * @cancellable: (nullable): optional #GCancellable object,
1968 * %NULL to ignore
1969 * @callback: (scope async): a #GAsyncReadyCallback to call
1970 * when the request is satisfied
1971 * @user_data: (closure): the data to pass to callback function
1973 * Asynchronously opens @file for reading.
1975 * For more details, see g_file_read() which is
1976 * the synchronous version of this call.
1978 * When the operation is finished, @callback will be called.
1979 * You can then call g_file_read_finish() to get the result
1980 * of the operation.
1982 void
1983 g_file_read_async (GFile *file,
1984 int io_priority,
1985 GCancellable *cancellable,
1986 GAsyncReadyCallback callback,
1987 gpointer user_data)
1989 GFileIface *iface;
1991 g_return_if_fail (G_IS_FILE (file));
1993 iface = G_FILE_GET_IFACE (file);
1994 (* iface->read_async) (file,
1995 io_priority,
1996 cancellable,
1997 callback,
1998 user_data);
2002 * g_file_read_finish:
2003 * @file: input #GFile
2004 * @res: a #GAsyncResult
2005 * @error: a #GError, or %NULL
2007 * Finishes an asynchronous file read operation started with
2008 * g_file_read_async().
2010 * Returns: (transfer full): a #GFileInputStream or %NULL on error.
2011 * Free the returned object with g_object_unref().
2013 GFileInputStream *
2014 g_file_read_finish (GFile *file,
2015 GAsyncResult *res,
2016 GError **error)
2018 GFileIface *iface;
2020 g_return_val_if_fail (G_IS_FILE (file), NULL);
2021 g_return_val_if_fail (G_IS_ASYNC_RESULT (res), NULL);
2023 if (g_async_result_legacy_propagate_error (res, error))
2024 return NULL;
2026 iface = G_FILE_GET_IFACE (file);
2027 return (* iface->read_finish) (file, res, error);
2031 * g_file_append_to_async:
2032 * @file: input #GFile
2033 * @flags: a set of #GFileCreateFlags
2034 * @io_priority: the [I/O priority][io-priority] of the request
2035 * @cancellable: (nullable): optional #GCancellable object,
2036 * %NULL to ignore
2037 * @callback: (scope async): a #GAsyncReadyCallback to call
2038 * when the request is satisfied
2039 * @user_data: (closure): the data to pass to callback function
2041 * Asynchronously opens @file for appending.
2043 * For more details, see g_file_append_to() which is
2044 * the synchronous version of this call.
2046 * When the operation is finished, @callback will be called.
2047 * You can then call g_file_append_to_finish() to get the result
2048 * of the operation.
2050 void
2051 g_file_append_to_async (GFile *file,
2052 GFileCreateFlags flags,
2053 int io_priority,
2054 GCancellable *cancellable,
2055 GAsyncReadyCallback callback,
2056 gpointer user_data)
2058 GFileIface *iface;
2060 g_return_if_fail (G_IS_FILE (file));
2062 iface = G_FILE_GET_IFACE (file);
2063 (* iface->append_to_async) (file,
2064 flags,
2065 io_priority,
2066 cancellable,
2067 callback,
2068 user_data);
2072 * g_file_append_to_finish:
2073 * @file: input #GFile
2074 * @res: #GAsyncResult
2075 * @error: a #GError, or %NULL
2077 * Finishes an asynchronous file append operation started with
2078 * g_file_append_to_async().
2080 * Returns: (transfer full): a valid #GFileOutputStream
2081 * or %NULL on error.
2082 * Free the returned object with g_object_unref().
2084 GFileOutputStream *
2085 g_file_append_to_finish (GFile *file,
2086 GAsyncResult *res,
2087 GError **error)
2089 GFileIface *iface;
2091 g_return_val_if_fail (G_IS_FILE (file), NULL);
2092 g_return_val_if_fail (G_IS_ASYNC_RESULT (res), NULL);
2094 if (g_async_result_legacy_propagate_error (res, error))
2095 return NULL;
2097 iface = G_FILE_GET_IFACE (file);
2098 return (* iface->append_to_finish) (file, res, error);
2102 * g_file_create_async:
2103 * @file: input #GFile
2104 * @flags: a set of #GFileCreateFlags
2105 * @io_priority: the [I/O priority][io-priority] of the request
2106 * @cancellable: (nullable): optional #GCancellable object,
2107 * %NULL to ignore
2108 * @callback: (scope async): a #GAsyncReadyCallback to call
2109 * when the request is satisfied
2110 * @user_data: (closure): the data to pass to callback function
2112 * Asynchronously creates a new file and returns an output stream
2113 * for writing to it. The file must not already exist.
2115 * For more details, see g_file_create() which is
2116 * the synchronous version of this call.
2118 * When the operation is finished, @callback will be called.
2119 * You can then call g_file_create_finish() to get the result
2120 * of the operation.
2122 void
2123 g_file_create_async (GFile *file,
2124 GFileCreateFlags flags,
2125 int io_priority,
2126 GCancellable *cancellable,
2127 GAsyncReadyCallback callback,
2128 gpointer user_data)
2130 GFileIface *iface;
2132 g_return_if_fail (G_IS_FILE (file));
2134 iface = G_FILE_GET_IFACE (file);
2135 (* iface->create_async) (file,
2136 flags,
2137 io_priority,
2138 cancellable,
2139 callback,
2140 user_data);
2144 * g_file_create_finish:
2145 * @file: input #GFile
2146 * @res: a #GAsyncResult
2147 * @error: a #GError, or %NULL
2149 * Finishes an asynchronous file create operation started with
2150 * g_file_create_async().
2152 * Returns: (transfer full): a #GFileOutputStream or %NULL on error.
2153 * Free the returned object with g_object_unref().
2155 GFileOutputStream *
2156 g_file_create_finish (GFile *file,
2157 GAsyncResult *res,
2158 GError **error)
2160 GFileIface *iface;
2162 g_return_val_if_fail (G_IS_FILE (file), NULL);
2163 g_return_val_if_fail (G_IS_ASYNC_RESULT (res), NULL);
2165 if (g_async_result_legacy_propagate_error (res, error))
2166 return NULL;
2168 iface = G_FILE_GET_IFACE (file);
2169 return (* iface->create_finish) (file, res, error);
2173 * g_file_replace_async:
2174 * @file: input #GFile
2175 * @etag: (nullable): an [entity tag][gfile-etag] for the current #GFile,
2176 * or %NULL to ignore
2177 * @make_backup: %TRUE if a backup should be created
2178 * @flags: a set of #GFileCreateFlags
2179 * @io_priority: the [I/O priority][io-priority] of the request
2180 * @cancellable: (nullable): optional #GCancellable object,
2181 * %NULL to ignore
2182 * @callback: (scope async): a #GAsyncReadyCallback to call
2183 * when the request is satisfied
2184 * @user_data: (closure): the data to pass to callback function
2186 * Asynchronously overwrites the file, replacing the contents,
2187 * possibly creating a backup copy of the file first.
2189 * For more details, see g_file_replace() which is
2190 * the synchronous version of this call.
2192 * When the operation is finished, @callback will be called.
2193 * You can then call g_file_replace_finish() to get the result
2194 * of the operation.
2196 void
2197 g_file_replace_async (GFile *file,
2198 const char *etag,
2199 gboolean make_backup,
2200 GFileCreateFlags flags,
2201 int io_priority,
2202 GCancellable *cancellable,
2203 GAsyncReadyCallback callback,
2204 gpointer user_data)
2206 GFileIface *iface;
2208 g_return_if_fail (G_IS_FILE (file));
2210 iface = G_FILE_GET_IFACE (file);
2211 (* iface->replace_async) (file,
2212 etag,
2213 make_backup,
2214 flags,
2215 io_priority,
2216 cancellable,
2217 callback,
2218 user_data);
2222 * g_file_replace_finish:
2223 * @file: input #GFile
2224 * @res: a #GAsyncResult
2225 * @error: a #GError, or %NULL
2227 * Finishes an asynchronous file replace operation started with
2228 * g_file_replace_async().
2230 * Returns: (transfer full): a #GFileOutputStream, or %NULL on error.
2231 * Free the returned object with g_object_unref().
2233 GFileOutputStream *
2234 g_file_replace_finish (GFile *file,
2235 GAsyncResult *res,
2236 GError **error)
2238 GFileIface *iface;
2240 g_return_val_if_fail (G_IS_FILE (file), NULL);
2241 g_return_val_if_fail (G_IS_ASYNC_RESULT (res), NULL);
2243 if (g_async_result_legacy_propagate_error (res, error))
2244 return NULL;
2246 iface = G_FILE_GET_IFACE (file);
2247 return (* iface->replace_finish) (file, res, error);
2251 * g_file_open_readwrite_async
2252 * @file: input #GFile
2253 * @io_priority: the [I/O priority][io-priority] of the request
2254 * @cancellable: (nullable): optional #GCancellable object,
2255 * %NULL to ignore
2256 * @callback: (scope async): a #GAsyncReadyCallback to call
2257 * when the request is satisfied
2258 * @user_data: (closure): the data to pass to callback function
2260 * Asynchronously opens @file for reading and writing.
2262 * For more details, see g_file_open_readwrite() which is
2263 * the synchronous version of this call.
2265 * When the operation is finished, @callback will be called.
2266 * You can then call g_file_open_readwrite_finish() to get
2267 * the result of the operation.
2269 * Since: 2.22
2271 void
2272 g_file_open_readwrite_async (GFile *file,
2273 int io_priority,
2274 GCancellable *cancellable,
2275 GAsyncReadyCallback callback,
2276 gpointer user_data)
2278 GFileIface *iface;
2280 g_return_if_fail (G_IS_FILE (file));
2282 iface = G_FILE_GET_IFACE (file);
2283 (* iface->open_readwrite_async) (file,
2284 io_priority,
2285 cancellable,
2286 callback,
2287 user_data);
2291 * g_file_open_readwrite_finish:
2292 * @file: input #GFile
2293 * @res: a #GAsyncResult
2294 * @error: a #GError, or %NULL
2296 * Finishes an asynchronous file read operation started with
2297 * g_file_open_readwrite_async().
2299 * Returns: (transfer full): a #GFileIOStream or %NULL on error.
2300 * Free the returned object with g_object_unref().
2302 * Since: 2.22
2304 GFileIOStream *
2305 g_file_open_readwrite_finish (GFile *file,
2306 GAsyncResult *res,
2307 GError **error)
2309 GFileIface *iface;
2311 g_return_val_if_fail (G_IS_FILE (file), NULL);
2312 g_return_val_if_fail (G_IS_ASYNC_RESULT (res), NULL);
2314 if (g_async_result_legacy_propagate_error (res, error))
2315 return NULL;
2317 iface = G_FILE_GET_IFACE (file);
2318 return (* iface->open_readwrite_finish) (file, res, error);
2322 * g_file_create_readwrite_async:
2323 * @file: input #GFile
2324 * @flags: a set of #GFileCreateFlags
2325 * @io_priority: the [I/O priority][io-priority] of the request
2326 * @cancellable: (nullable): optional #GCancellable object,
2327 * %NULL to ignore
2328 * @callback: (scope async): a #GAsyncReadyCallback to call
2329 * when the request is satisfied
2330 * @user_data: (closure): the data to pass to callback function
2332 * Asynchronously creates a new file and returns a stream
2333 * for reading and writing to it. The file must not already exist.
2335 * For more details, see g_file_create_readwrite() which is
2336 * the synchronous version of this call.
2338 * When the operation is finished, @callback will be called.
2339 * You can then call g_file_create_readwrite_finish() to get
2340 * the result of the operation.
2342 * Since: 2.22
2344 void
2345 g_file_create_readwrite_async (GFile *file,
2346 GFileCreateFlags flags,
2347 int io_priority,
2348 GCancellable *cancellable,
2349 GAsyncReadyCallback callback,
2350 gpointer user_data)
2352 GFileIface *iface;
2354 g_return_if_fail (G_IS_FILE (file));
2356 iface = G_FILE_GET_IFACE (file);
2357 (* iface->create_readwrite_async) (file,
2358 flags,
2359 io_priority,
2360 cancellable,
2361 callback,
2362 user_data);
2366 * g_file_create_readwrite_finish:
2367 * @file: input #GFile
2368 * @res: a #GAsyncResult
2369 * @error: a #GError, or %NULL
2371 * Finishes an asynchronous file create operation started with
2372 * g_file_create_readwrite_async().
2374 * Returns: (transfer full): a #GFileIOStream or %NULL on error.
2375 * Free the returned object with g_object_unref().
2377 * Since: 2.22
2379 GFileIOStream *
2380 g_file_create_readwrite_finish (GFile *file,
2381 GAsyncResult *res,
2382 GError **error)
2384 GFileIface *iface;
2386 g_return_val_if_fail (G_IS_FILE (file), NULL);
2387 g_return_val_if_fail (G_IS_ASYNC_RESULT (res), NULL);
2389 if (g_async_result_legacy_propagate_error (res, error))
2390 return NULL;
2392 iface = G_FILE_GET_IFACE (file);
2393 return (* iface->create_readwrite_finish) (file, res, error);
2397 * g_file_replace_readwrite_async:
2398 * @file: input #GFile
2399 * @etag: (nullable): an [entity tag][gfile-etag] for the current #GFile,
2400 * or %NULL to ignore
2401 * @make_backup: %TRUE if a backup should be created
2402 * @flags: a set of #GFileCreateFlags
2403 * @io_priority: the [I/O priority][io-priority] of the request
2404 * @cancellable: (nullable): optional #GCancellable object,
2405 * %NULL to ignore
2406 * @callback: (scope async): a #GAsyncReadyCallback to call
2407 * when the request is satisfied
2408 * @user_data: (closure): the data to pass to callback function
2410 * Asynchronously overwrites the file in read-write mode,
2411 * replacing the contents, possibly creating a backup copy
2412 * of the file first.
2414 * For more details, see g_file_replace_readwrite() which is
2415 * the synchronous version of this call.
2417 * When the operation is finished, @callback will be called.
2418 * You can then call g_file_replace_readwrite_finish() to get
2419 * the result of the operation.
2421 * Since: 2.22
2423 void
2424 g_file_replace_readwrite_async (GFile *file,
2425 const char *etag,
2426 gboolean make_backup,
2427 GFileCreateFlags flags,
2428 int io_priority,
2429 GCancellable *cancellable,
2430 GAsyncReadyCallback callback,
2431 gpointer user_data)
2433 GFileIface *iface;
2435 g_return_if_fail (G_IS_FILE (file));
2437 iface = G_FILE_GET_IFACE (file);
2438 (* iface->replace_readwrite_async) (file,
2439 etag,
2440 make_backup,
2441 flags,
2442 io_priority,
2443 cancellable,
2444 callback,
2445 user_data);
2449 * g_file_replace_readwrite_finish:
2450 * @file: input #GFile
2451 * @res: a #GAsyncResult
2452 * @error: a #GError, or %NULL
2454 * Finishes an asynchronous file replace operation started with
2455 * g_file_replace_readwrite_async().
2457 * Returns: (transfer full): a #GFileIOStream, or %NULL on error.
2458 * Free the returned object with g_object_unref().
2460 * Since: 2.22
2462 GFileIOStream *
2463 g_file_replace_readwrite_finish (GFile *file,
2464 GAsyncResult *res,
2465 GError **error)
2467 GFileIface *iface;
2469 g_return_val_if_fail (G_IS_FILE (file), NULL);
2470 g_return_val_if_fail (G_IS_ASYNC_RESULT (res), NULL);
2472 if (g_async_result_legacy_propagate_error (res, error))
2473 return NULL;
2475 iface = G_FILE_GET_IFACE (file);
2476 return (* iface->replace_readwrite_finish) (file, res, error);
2479 static gboolean
2480 copy_symlink (GFile *destination,
2481 GFileCopyFlags flags,
2482 GCancellable *cancellable,
2483 const char *target,
2484 GError **error)
2486 GError *my_error;
2487 gboolean tried_delete;
2488 GFileInfo *info;
2489 GFileType file_type;
2491 tried_delete = FALSE;
2493 retry:
2494 my_error = NULL;
2495 if (!g_file_make_symbolic_link (destination, target, cancellable, &my_error))
2497 /* Maybe it already existed, and we want to overwrite? */
2498 if (!tried_delete && (flags & G_FILE_COPY_OVERWRITE) &&
2499 my_error->domain == G_IO_ERROR && my_error->code == G_IO_ERROR_EXISTS)
2501 g_clear_error (&my_error);
2503 /* Don't overwrite if the destination is a directory */
2504 info = g_file_query_info (destination, G_FILE_ATTRIBUTE_STANDARD_TYPE,
2505 G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
2506 cancellable, &my_error);
2507 if (info != NULL)
2509 file_type = g_file_info_get_file_type (info);
2510 g_object_unref (info);
2512 if (file_type == G_FILE_TYPE_DIRECTORY)
2514 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_IS_DIRECTORY,
2515 _("Can’t copy over directory"));
2516 return FALSE;
2520 if (!g_file_delete (destination, cancellable, error))
2521 return FALSE;
2523 tried_delete = TRUE;
2524 goto retry;
2526 /* Nah, fail */
2527 g_propagate_error (error, my_error);
2528 return FALSE;
2531 return TRUE;
2534 static GFileInputStream *
2535 open_source_for_copy (GFile *source,
2536 GFile *destination,
2537 GFileCopyFlags flags,
2538 GCancellable *cancellable,
2539 GError **error)
2541 GError *my_error;
2542 GFileInputStream *ret;
2543 GFileInfo *info;
2544 GFileType file_type;
2546 my_error = NULL;
2547 ret = g_file_read (source, cancellable, &my_error);
2548 if (ret != NULL)
2549 return ret;
2551 /* There was an error opening the source, try to set a good error for it: */
2552 if (my_error->domain == G_IO_ERROR && my_error->code == G_IO_ERROR_IS_DIRECTORY)
2554 /* The source is a directory, don't fail with WOULD_RECURSE immediately,
2555 * as that is less useful to the app. Better check for errors on the
2556 * target instead.
2558 g_error_free (my_error);
2559 my_error = NULL;
2561 info = g_file_query_info (destination, G_FILE_ATTRIBUTE_STANDARD_TYPE,
2562 G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
2563 cancellable, &my_error);
2564 if (info != NULL &&
2565 g_file_info_has_attribute (info, G_FILE_ATTRIBUTE_STANDARD_TYPE))
2567 file_type = g_file_info_get_file_type (info);
2568 g_object_unref (info);
2570 if (flags & G_FILE_COPY_OVERWRITE)
2572 if (file_type == G_FILE_TYPE_DIRECTORY)
2574 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_WOULD_MERGE,
2575 _("Can’t copy directory over directory"));
2576 return NULL;
2578 /* continue to would_recurse error */
2580 else
2582 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_EXISTS,
2583 _("Target file exists"));
2584 return NULL;
2587 else
2589 /* Error getting info from target, return that error
2590 * (except for NOT_FOUND, which is no error here)
2592 g_clear_object (&info);
2593 if (my_error != NULL && !g_error_matches (my_error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND))
2595 g_propagate_error (error, my_error);
2596 return NULL;
2598 g_clear_error (&my_error);
2601 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_WOULD_RECURSE,
2602 _("Can’t recursively copy directory"));
2603 return NULL;
2606 g_propagate_error (error, my_error);
2607 return NULL;
2610 static gboolean
2611 should_copy (GFileAttributeInfo *info,
2612 gboolean copy_all_attributes,
2613 gboolean skip_perms)
2615 if (skip_perms && strcmp(info->name, "unix::mode") == 0)
2616 return FALSE;
2618 if (copy_all_attributes)
2619 return info->flags & G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED;
2620 return info->flags & G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE;
2623 static gboolean
2624 build_attribute_list_for_copy (GFile *file,
2625 GFileCopyFlags flags,
2626 char **out_attributes,
2627 GCancellable *cancellable,
2628 GError **error)
2630 gboolean ret = FALSE;
2631 GFileAttributeInfoList *attributes = NULL, *namespaces = NULL;
2632 GString *s = NULL;
2633 gboolean first;
2634 int i;
2635 gboolean copy_all_attributes;
2636 gboolean skip_perms;
2638 copy_all_attributes = flags & G_FILE_COPY_ALL_METADATA;
2639 skip_perms = (flags & G_FILE_COPY_TARGET_DEFAULT_PERMS) != 0;
2641 /* Ignore errors here, if the target supports no attributes there is
2642 * nothing to copy. We still honor the cancellable though.
2644 attributes = g_file_query_settable_attributes (file, cancellable, NULL);
2645 if (g_cancellable_set_error_if_cancelled (cancellable, error))
2646 goto out;
2648 namespaces = g_file_query_writable_namespaces (file, cancellable, NULL);
2649 if (g_cancellable_set_error_if_cancelled (cancellable, error))
2650 goto out;
2652 if (attributes == NULL && namespaces == NULL)
2653 goto out;
2655 first = TRUE;
2656 s = g_string_new ("");
2658 if (attributes)
2660 for (i = 0; i < attributes->n_infos; i++)
2662 if (should_copy (&attributes->infos[i], copy_all_attributes, skip_perms))
2664 if (first)
2665 first = FALSE;
2666 else
2667 g_string_append_c (s, ',');
2669 g_string_append (s, attributes->infos[i].name);
2674 if (namespaces)
2676 for (i = 0; i < namespaces->n_infos; i++)
2678 if (should_copy (&namespaces->infos[i], copy_all_attributes, FALSE))
2680 if (first)
2681 first = FALSE;
2682 else
2683 g_string_append_c (s, ',');
2685 g_string_append (s, namespaces->infos[i].name);
2686 g_string_append (s, "::*");
2691 ret = TRUE;
2692 *out_attributes = g_string_free (s, FALSE);
2693 s = NULL;
2694 out:
2695 if (s)
2696 g_string_free (s, TRUE);
2697 if (attributes)
2698 g_file_attribute_info_list_unref (attributes);
2699 if (namespaces)
2700 g_file_attribute_info_list_unref (namespaces);
2702 return ret;
2706 * g_file_copy_attributes:
2707 * @source: a #GFile with attributes
2708 * @destination: a #GFile to copy attributes to
2709 * @flags: a set of #GFileCopyFlags
2710 * @cancellable: (nullable): optional #GCancellable object,
2711 * %NULL to ignore
2712 * @error: a #GError, %NULL to ignore
2714 * Copies the file attributes from @source to @destination.
2716 * Normally only a subset of the file attributes are copied,
2717 * those that are copies in a normal file copy operation
2718 * (which for instance does not include e.g. owner). However
2719 * if #G_FILE_COPY_ALL_METADATA is specified in @flags, then
2720 * all the metadata that is possible to copy is copied. This
2721 * is useful when implementing move by copy + delete source.
2723 * Returns: %TRUE if the attributes were copied successfully,
2724 * %FALSE otherwise.
2726 gboolean
2727 g_file_copy_attributes (GFile *source,
2728 GFile *destination,
2729 GFileCopyFlags flags,
2730 GCancellable *cancellable,
2731 GError **error)
2733 char *attrs_to_read;
2734 gboolean res;
2735 GFileInfo *info;
2736 gboolean source_nofollow_symlinks;
2738 if (!build_attribute_list_for_copy (destination, flags, &attrs_to_read,
2739 cancellable, error))
2740 return FALSE;
2742 source_nofollow_symlinks = flags & G_FILE_COPY_NOFOLLOW_SYMLINKS;
2744 /* Ignore errors here, if we can't read some info (e.g. if it doesn't exist)
2745 * we just don't copy it.
2747 info = g_file_query_info (source, attrs_to_read,
2748 source_nofollow_symlinks ? G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS:0,
2749 cancellable,
2750 NULL);
2752 g_free (attrs_to_read);
2754 res = TRUE;
2755 if (info)
2757 res = g_file_set_attributes_from_info (destination,
2758 info,
2759 G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
2760 cancellable,
2761 error);
2762 g_object_unref (info);
2765 return res;
2768 /* 256k minus malloc overhead */
2769 #define STREAM_BUFFER_SIZE (1024*256 - 2 *sizeof(gpointer))
2771 static gboolean
2772 copy_stream_with_progress (GInputStream *in,
2773 GOutputStream *out,
2774 GFile *source,
2775 GCancellable *cancellable,
2776 GFileProgressCallback progress_callback,
2777 gpointer progress_callback_data,
2778 GError **error)
2780 gssize n_read, n_written;
2781 goffset current_size;
2782 char *buffer, *p;
2783 gboolean res;
2784 goffset total_size;
2785 GFileInfo *info;
2787 total_size = -1;
2788 /* avoid performance impact of querying total size when it's not needed */
2789 if (progress_callback)
2791 info = g_file_input_stream_query_info (G_FILE_INPUT_STREAM (in),
2792 G_FILE_ATTRIBUTE_STANDARD_SIZE,
2793 cancellable, NULL);
2794 if (info)
2796 if (g_file_info_has_attribute (info, G_FILE_ATTRIBUTE_STANDARD_SIZE))
2797 total_size = g_file_info_get_size (info);
2798 g_object_unref (info);
2801 if (total_size == -1)
2803 info = g_file_query_info (source,
2804 G_FILE_ATTRIBUTE_STANDARD_SIZE,
2805 G_FILE_QUERY_INFO_NONE,
2806 cancellable, NULL);
2807 if (info)
2809 if (g_file_info_has_attribute (info, G_FILE_ATTRIBUTE_STANDARD_SIZE))
2810 total_size = g_file_info_get_size (info);
2811 g_object_unref (info);
2816 if (total_size == -1)
2817 total_size = 0;
2819 buffer = g_malloc0 (STREAM_BUFFER_SIZE);
2820 current_size = 0;
2821 res = TRUE;
2822 while (TRUE)
2824 n_read = g_input_stream_read (in, buffer, STREAM_BUFFER_SIZE, cancellable, error);
2825 if (n_read == -1)
2827 res = FALSE;
2828 break;
2831 if (n_read == 0)
2832 break;
2834 current_size += n_read;
2836 p = buffer;
2837 while (n_read > 0)
2839 n_written = g_output_stream_write (out, p, n_read, cancellable, error);
2840 if (n_written == -1)
2842 res = FALSE;
2843 break;
2846 p += n_written;
2847 n_read -= n_written;
2850 if (!res)
2851 break;
2853 if (progress_callback)
2854 progress_callback (current_size, total_size, progress_callback_data);
2856 g_free (buffer);
2858 /* Make sure we send full copied size */
2859 if (progress_callback)
2860 progress_callback (current_size, total_size, progress_callback_data);
2862 return res;
2865 #ifdef HAVE_SPLICE
2867 static gboolean
2868 do_splice (int fd_in,
2869 loff_t *off_in,
2870 int fd_out,
2871 loff_t *off_out,
2872 size_t len,
2873 long *bytes_transferd,
2874 GError **error)
2876 long result;
2878 retry:
2879 result = splice (fd_in, off_in, fd_out, off_out, len, SPLICE_F_MORE);
2881 if (result == -1)
2883 int errsv = errno;
2885 if (errsv == EINTR)
2886 goto retry;
2887 else if (errsv == ENOSYS || errsv == EINVAL)
2888 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
2889 _("Splice not supported"));
2890 else
2891 g_set_error (error, G_IO_ERROR,
2892 g_io_error_from_errno (errsv),
2893 _("Error splicing file: %s"),
2894 g_strerror (errsv));
2896 return FALSE;
2899 *bytes_transferd = result;
2900 return TRUE;
2903 static gboolean
2904 splice_stream_with_progress (GInputStream *in,
2905 GOutputStream *out,
2906 GCancellable *cancellable,
2907 GFileProgressCallback progress_callback,
2908 gpointer progress_callback_data,
2909 GError **error)
2911 int buffer[2] = { -1, -1 };
2912 gboolean res;
2913 goffset total_size;
2914 loff_t offset_in;
2915 loff_t offset_out;
2916 int fd_in, fd_out;
2918 fd_in = g_file_descriptor_based_get_fd (G_FILE_DESCRIPTOR_BASED (in));
2919 fd_out = g_file_descriptor_based_get_fd (G_FILE_DESCRIPTOR_BASED (out));
2921 if (!g_unix_open_pipe (buffer, FD_CLOEXEC, error))
2922 return FALSE;
2924 total_size = -1;
2925 /* avoid performance impact of querying total size when it's not needed */
2926 if (progress_callback)
2928 struct stat sbuf;
2930 if (fstat (fd_in, &sbuf) == 0)
2931 total_size = sbuf.st_size;
2934 if (total_size == -1)
2935 total_size = 0;
2937 offset_in = offset_out = 0;
2938 res = FALSE;
2939 while (TRUE)
2941 long n_read;
2942 long n_written;
2944 if (g_cancellable_set_error_if_cancelled (cancellable, error))
2945 break;
2947 if (!do_splice (fd_in, &offset_in, buffer[1], NULL, 1024*64, &n_read, error))
2948 break;
2950 if (n_read == 0)
2952 res = TRUE;
2953 break;
2956 while (n_read > 0)
2958 if (g_cancellable_set_error_if_cancelled (cancellable, error))
2959 goto out;
2961 if (!do_splice (buffer[0], NULL, fd_out, &offset_out, n_read, &n_written, error))
2962 goto out;
2964 n_read -= n_written;
2967 if (progress_callback)
2968 progress_callback (offset_in, total_size, progress_callback_data);
2971 /* Make sure we send full copied size */
2972 if (progress_callback)
2973 progress_callback (offset_in, total_size, progress_callback_data);
2975 if (!g_close (buffer[0], error))
2976 goto out;
2977 buffer[0] = -1;
2978 if (!g_close (buffer[1], error))
2979 goto out;
2980 buffer[1] = -1;
2981 out:
2982 if (buffer[0] != -1)
2983 (void) g_close (buffer[0], NULL);
2984 if (buffer[1] != -1)
2985 (void) g_close (buffer[1], NULL);
2987 return res;
2989 #endif
2991 #ifdef __linux__
2992 static gboolean
2993 btrfs_reflink_with_progress (GInputStream *in,
2994 GOutputStream *out,
2995 GFileInfo *info,
2996 GCancellable *cancellable,
2997 GFileProgressCallback progress_callback,
2998 gpointer progress_callback_data,
2999 GError **error)
3001 goffset source_size;
3002 int fd_in, fd_out;
3003 int ret;
3005 fd_in = g_file_descriptor_based_get_fd (G_FILE_DESCRIPTOR_BASED (in));
3006 fd_out = g_file_descriptor_based_get_fd (G_FILE_DESCRIPTOR_BASED (out));
3008 if (progress_callback)
3009 source_size = g_file_info_get_size (info);
3011 /* Btrfs clone ioctl properties:
3012 * - Works at the inode level
3013 * - Doesn't work with directories
3014 * - Always follows symlinks (source and destination)
3016 * By the time we get here, *in and *out are both regular files */
3017 ret = ioctl (fd_out, BTRFS_IOC_CLONE, fd_in);
3019 if (ret < 0)
3021 if (errno == EXDEV)
3022 g_set_error_literal (error, G_IO_ERROR,
3023 G_IO_ERROR_NOT_SUPPORTED,
3024 _("Copy (reflink/clone) between mounts is not supported"));
3025 else if (errno == EINVAL)
3026 g_set_error_literal (error, G_IO_ERROR,
3027 G_IO_ERROR_NOT_SUPPORTED,
3028 _("Copy (reflink/clone) is not supported or invalid"));
3029 else
3030 /* Most probably something odd happened; retry with fallback */
3031 g_set_error_literal (error, G_IO_ERROR,
3032 G_IO_ERROR_NOT_SUPPORTED,
3033 _("Copy (reflink/clone) is not supported or didn’t work"));
3034 /* We retry with fallback for all error cases because Btrfs is currently
3035 * unstable, and so we can't trust it to do clone properly.
3036 * In addition, any hard errors here would cause the same failure in the
3037 * fallback manual copy as well. */
3038 return FALSE;
3041 /* Make sure we send full copied size */
3042 if (progress_callback)
3043 progress_callback (source_size, source_size, progress_callback_data);
3045 return TRUE;
3047 #endif
3049 static gboolean
3050 file_copy_fallback (GFile *source,
3051 GFile *destination,
3052 GFileCopyFlags flags,
3053 GCancellable *cancellable,
3054 GFileProgressCallback progress_callback,
3055 gpointer progress_callback_data,
3056 GError **error)
3058 gboolean ret = FALSE;
3059 GFileInputStream *file_in = NULL;
3060 GInputStream *in = NULL;
3061 GOutputStream *out = NULL;
3062 GFileInfo *info = NULL;
3063 const char *target;
3064 char *attrs_to_read;
3065 gboolean do_set_attributes = FALSE;
3067 /* need to know the file type */
3068 info = g_file_query_info (source,
3069 G_FILE_ATTRIBUTE_STANDARD_TYPE "," G_FILE_ATTRIBUTE_STANDARD_SYMLINK_TARGET,
3070 G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
3071 cancellable,
3072 error);
3073 if (!info)
3074 goto out;
3076 /* Maybe copy the symlink? */
3077 if ((flags & G_FILE_COPY_NOFOLLOW_SYMLINKS) &&
3078 g_file_info_get_file_type (info) == G_FILE_TYPE_SYMBOLIC_LINK)
3080 target = g_file_info_get_symlink_target (info);
3081 if (target)
3083 if (!copy_symlink (destination, flags, cancellable, target, error))
3084 goto out;
3086 ret = TRUE;
3087 goto out;
3089 /* ... else fall back on a regular file copy */
3091 /* Handle "special" files (pipes, device nodes, ...)? */
3092 else if (g_file_info_get_file_type (info) == G_FILE_TYPE_SPECIAL)
3094 /* FIXME: could try to recreate device nodes and others? */
3095 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
3096 _("Can’t copy special file"));
3097 goto out;
3100 /* Everything else should just fall back on a regular copy. */
3102 file_in = open_source_for_copy (source, destination, flags, cancellable, error);
3103 if (!file_in)
3104 goto out;
3105 in = G_INPUT_STREAM (file_in);
3107 if (!build_attribute_list_for_copy (destination, flags, &attrs_to_read,
3108 cancellable, error))
3109 goto out;
3111 if (attrs_to_read != NULL)
3113 GError *tmp_error = NULL;
3115 /* Ok, ditch the previous lightweight info (on Unix we just
3116 * called lstat()); at this point we gather all the information
3117 * we need about the source from the opened file descriptor.
3119 g_object_unref (info);
3121 info = g_file_input_stream_query_info (file_in, attrs_to_read,
3122 cancellable, &tmp_error);
3123 if (!info)
3125 /* Not all gvfs backends implement query_info_on_read(), we
3126 * can just fall back to the pathname again.
3127 * https://bugzilla.gnome.org/706254
3129 if (g_error_matches (tmp_error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED))
3131 g_clear_error (&tmp_error);
3132 info = g_file_query_info (source, attrs_to_read, G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
3133 cancellable, error);
3135 else
3137 g_free (attrs_to_read);
3138 g_propagate_error (error, tmp_error);
3139 goto out;
3142 g_free (attrs_to_read);
3143 if (!info)
3144 goto out;
3146 do_set_attributes = TRUE;
3149 /* In the local file path, we pass down the source info which
3150 * includes things like unix::mode, to ensure that the target file
3151 * is not created with different permissions from the source file.
3153 * If a future API like g_file_replace_with_info() is added, switch
3154 * this code to use that.
3156 if (G_IS_LOCAL_FILE (destination))
3158 if (flags & G_FILE_COPY_OVERWRITE)
3159 out = (GOutputStream*)_g_local_file_output_stream_replace (_g_local_file_get_filename (G_LOCAL_FILE (destination)),
3160 FALSE, NULL,
3161 flags & G_FILE_COPY_BACKUP,
3162 G_FILE_CREATE_REPLACE_DESTINATION,
3163 info,
3164 cancellable, error);
3165 else
3166 out = (GOutputStream*)_g_local_file_output_stream_create (_g_local_file_get_filename (G_LOCAL_FILE (destination)),
3167 FALSE, 0, info,
3168 cancellable, error);
3170 else if (flags & G_FILE_COPY_OVERWRITE)
3172 out = (GOutputStream *)g_file_replace (destination,
3173 NULL,
3174 flags & G_FILE_COPY_BACKUP,
3175 G_FILE_CREATE_REPLACE_DESTINATION,
3176 cancellable, error);
3178 else
3180 out = (GOutputStream *)g_file_create (destination, 0, cancellable, error);
3183 if (!out)
3184 goto out;
3186 #ifdef __linux__
3187 if (G_IS_FILE_DESCRIPTOR_BASED (in) && G_IS_FILE_DESCRIPTOR_BASED (out))
3189 GError *reflink_err = NULL;
3191 if (!btrfs_reflink_with_progress (in, out, info, cancellable,
3192 progress_callback, progress_callback_data,
3193 &reflink_err))
3195 if (g_error_matches (reflink_err, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED))
3197 g_clear_error (&reflink_err);
3199 else
3201 g_propagate_error (error, reflink_err);
3202 goto out;
3205 else
3207 ret = TRUE;
3208 goto out;
3211 #endif
3213 #ifdef HAVE_SPLICE
3214 if (G_IS_FILE_DESCRIPTOR_BASED (in) && G_IS_FILE_DESCRIPTOR_BASED (out))
3216 GError *splice_err = NULL;
3218 if (!splice_stream_with_progress (in, out, cancellable,
3219 progress_callback, progress_callback_data,
3220 &splice_err))
3222 if (g_error_matches (splice_err, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED))
3224 g_clear_error (&splice_err);
3226 else
3228 g_propagate_error (error, splice_err);
3229 goto out;
3232 else
3234 ret = TRUE;
3235 goto out;
3239 #endif
3241 /* A plain read/write loop */
3242 if (!copy_stream_with_progress (in, out, source, cancellable,
3243 progress_callback, progress_callback_data,
3244 error))
3245 goto out;
3247 ret = TRUE;
3248 out:
3249 if (in)
3251 /* Don't care about errors in source here */
3252 (void) g_input_stream_close (in, cancellable, NULL);
3253 g_object_unref (in);
3256 if (out)
3258 /* But write errors on close are bad! */
3259 if (!g_output_stream_close (out, cancellable, ret ? error : NULL))
3260 ret = FALSE;
3261 g_object_unref (out);
3264 /* Ignore errors here. Failure to copy metadata is not a hard error */
3265 /* TODO: set these attributes /before/ we do the rename() on Unix */
3266 if (ret && do_set_attributes)
3268 g_file_set_attributes_from_info (destination,
3269 info,
3270 G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
3271 cancellable,
3272 NULL);
3275 g_clear_object (&info);
3277 return ret;
3281 * g_file_copy:
3282 * @source: input #GFile
3283 * @destination: destination #GFile
3284 * @flags: set of #GFileCopyFlags
3285 * @cancellable: (nullable): optional #GCancellable object,
3286 * %NULL to ignore
3287 * @progress_callback: (nullable) (scope call): function to callback with
3288 * progress information, or %NULL if progress information is not needed
3289 * @progress_callback_data: (closure): user data to pass to @progress_callback
3290 * @error: #GError to set on error, or %NULL
3292 * Copies the file @source to the location specified by @destination.
3293 * Can not handle recursive copies of directories.
3295 * If the flag #G_FILE_COPY_OVERWRITE is specified an already
3296 * existing @destination file is overwritten.
3298 * If the flag #G_FILE_COPY_NOFOLLOW_SYMLINKS is specified then symlinks
3299 * will be copied as symlinks, otherwise the target of the
3300 * @source symlink will be copied.
3302 * If @cancellable is not %NULL, then the operation can be cancelled by
3303 * triggering the cancellable object from another thread. If the operation
3304 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
3306 * If @progress_callback is not %NULL, then the operation can be monitored
3307 * by setting this to a #GFileProgressCallback function.
3308 * @progress_callback_data will be passed to this function. It is guaranteed
3309 * that this callback will be called after all data has been transferred with
3310 * the total number of bytes copied during the operation.
3312 * If the @source file does not exist, then the %G_IO_ERROR_NOT_FOUND error
3313 * is returned, independent on the status of the @destination.
3315 * If #G_FILE_COPY_OVERWRITE is not specified and the target exists, then
3316 * the error %G_IO_ERROR_EXISTS is returned.
3318 * If trying to overwrite a file over a directory, the %G_IO_ERROR_IS_DIRECTORY
3319 * error is returned. If trying to overwrite a directory with a directory the
3320 * %G_IO_ERROR_WOULD_MERGE error is returned.
3322 * If the source is a directory and the target does not exist, or
3323 * #G_FILE_COPY_OVERWRITE is specified and the target is a file, then the
3324 * %G_IO_ERROR_WOULD_RECURSE error is returned.
3326 * If you are interested in copying the #GFile object itself (not the on-disk
3327 * file), see g_file_dup().
3329 * Returns: %TRUE on success, %FALSE otherwise.
3331 gboolean
3332 g_file_copy (GFile *source,
3333 GFile *destination,
3334 GFileCopyFlags flags,
3335 GCancellable *cancellable,
3336 GFileProgressCallback progress_callback,
3337 gpointer progress_callback_data,
3338 GError **error)
3340 GFileIface *iface;
3341 GError *my_error;
3342 gboolean res;
3344 g_return_val_if_fail (G_IS_FILE (source), FALSE);
3345 g_return_val_if_fail (G_IS_FILE (destination), FALSE);
3347 if (g_cancellable_set_error_if_cancelled (cancellable, error))
3348 return FALSE;
3350 iface = G_FILE_GET_IFACE (destination);
3351 if (iface->copy)
3353 my_error = NULL;
3354 res = (* iface->copy) (source, destination,
3355 flags, cancellable,
3356 progress_callback, progress_callback_data,
3357 &my_error);
3359 if (res)
3360 return TRUE;
3362 if (my_error->domain != G_IO_ERROR || my_error->code != G_IO_ERROR_NOT_SUPPORTED)
3364 g_propagate_error (error, my_error);
3365 return FALSE;
3367 else
3368 g_clear_error (&my_error);
3371 /* If the types are different, and the destination method failed
3372 * also try the source method
3374 if (G_OBJECT_TYPE (source) != G_OBJECT_TYPE (destination))
3376 iface = G_FILE_GET_IFACE (source);
3378 if (iface->copy)
3380 my_error = NULL;
3381 res = (* iface->copy) (source, destination,
3382 flags, cancellable,
3383 progress_callback, progress_callback_data,
3384 &my_error);
3386 if (res)
3387 return TRUE;
3389 if (my_error->domain != G_IO_ERROR || my_error->code != G_IO_ERROR_NOT_SUPPORTED)
3391 g_propagate_error (error, my_error);
3392 return FALSE;
3394 else
3395 g_clear_error (&my_error);
3399 return file_copy_fallback (source, destination, flags, cancellable,
3400 progress_callback, progress_callback_data,
3401 error);
3405 * g_file_copy_async: (skip)
3406 * @source: input #GFile
3407 * @destination: destination #GFile
3408 * @flags: set of #GFileCopyFlags
3409 * @io_priority: the [I/O priority][io-priority] of the request
3410 * @cancellable: (nullable): optional #GCancellable object,
3411 * %NULL to ignore
3412 * @progress_callback: (nullable): function to callback with progress
3413 * information, or %NULL if progress information is not needed
3414 * @progress_callback_data: (closure): user data to pass to @progress_callback
3415 * @callback: a #GAsyncReadyCallback to call when the request is satisfied
3416 * @user_data: the data to pass to callback function
3418 * Copies the file @source to the location specified by @destination
3419 * asynchronously. For details of the behaviour, see g_file_copy().
3421 * If @progress_callback is not %NULL, then that function that will be called
3422 * just like in g_file_copy(). The callback will run in the default main context
3423 * of the thread calling g_file_copy_async() — the same context as @callback is
3424 * run in.
3426 * When the operation is finished, @callback will be called. You can then call
3427 * g_file_copy_finish() to get the result of the operation.
3429 void
3430 g_file_copy_async (GFile *source,
3431 GFile *destination,
3432 GFileCopyFlags flags,
3433 int io_priority,
3434 GCancellable *cancellable,
3435 GFileProgressCallback progress_callback,
3436 gpointer progress_callback_data,
3437 GAsyncReadyCallback callback,
3438 gpointer user_data)
3440 GFileIface *iface;
3442 g_return_if_fail (G_IS_FILE (source));
3443 g_return_if_fail (G_IS_FILE (destination));
3445 iface = G_FILE_GET_IFACE (source);
3446 (* iface->copy_async) (source,
3447 destination,
3448 flags,
3449 io_priority,
3450 cancellable,
3451 progress_callback,
3452 progress_callback_data,
3453 callback,
3454 user_data);
3458 * g_file_copy_finish:
3459 * @file: input #GFile
3460 * @res: a #GAsyncResult
3461 * @error: a #GError, or %NULL
3463 * Finishes copying the file started with g_file_copy_async().
3465 * Returns: a %TRUE on success, %FALSE on error.
3467 gboolean
3468 g_file_copy_finish (GFile *file,
3469 GAsyncResult *res,
3470 GError **error)
3472 GFileIface *iface;
3474 g_return_val_if_fail (G_IS_FILE (file), FALSE);
3475 g_return_val_if_fail (G_IS_ASYNC_RESULT (res), FALSE);
3477 if (g_async_result_legacy_propagate_error (res, error))
3478 return FALSE;
3480 iface = G_FILE_GET_IFACE (file);
3481 return (* iface->copy_finish) (file, res, error);
3485 * g_file_move:
3486 * @source: #GFile pointing to the source location
3487 * @destination: #GFile pointing to the destination location
3488 * @flags: set of #GFileCopyFlags
3489 * @cancellable: (nullable): optional #GCancellable object,
3490 * %NULL to ignore
3491 * @progress_callback: (nullable) (scope call): #GFileProgressCallback
3492 * function for updates
3493 * @progress_callback_data: (closure): gpointer to user data for
3494 * the callback function
3495 * @error: #GError for returning error conditions, or %NULL
3497 * Tries to move the file or directory @source to the location specified
3498 * by @destination. If native move operations are supported then this is
3499 * used, otherwise a copy + delete fallback is used. The native
3500 * implementation may support moving directories (for instance on moves
3501 * inside the same filesystem), but the fallback code does not.
3503 * If the flag #G_FILE_COPY_OVERWRITE is specified an already
3504 * existing @destination file is overwritten.
3506 * If the flag #G_FILE_COPY_NOFOLLOW_SYMLINKS is specified then symlinks
3507 * will be copied as symlinks, otherwise the target of the
3508 * @source symlink will be copied.
3510 * If @cancellable is not %NULL, then the operation can be cancelled by
3511 * triggering the cancellable object from another thread. If the operation
3512 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
3514 * If @progress_callback is not %NULL, then the operation can be monitored
3515 * by setting this to a #GFileProgressCallback function.
3516 * @progress_callback_data will be passed to this function. It is
3517 * guaranteed that this callback will be called after all data has been
3518 * transferred with the total number of bytes copied during the operation.
3520 * If the @source file does not exist, then the %G_IO_ERROR_NOT_FOUND
3521 * error is returned, independent on the status of the @destination.
3523 * If #G_FILE_COPY_OVERWRITE is not specified and the target exists,
3524 * then the error %G_IO_ERROR_EXISTS is returned.
3526 * If trying to overwrite a file over a directory, the %G_IO_ERROR_IS_DIRECTORY
3527 * error is returned. If trying to overwrite a directory with a directory the
3528 * %G_IO_ERROR_WOULD_MERGE error is returned.
3530 * If the source is a directory and the target does not exist, or
3531 * #G_FILE_COPY_OVERWRITE is specified and the target is a file, then
3532 * the %G_IO_ERROR_WOULD_RECURSE error may be returned (if the native
3533 * move operation isn't available).
3535 * Returns: %TRUE on successful move, %FALSE otherwise.
3537 gboolean
3538 g_file_move (GFile *source,
3539 GFile *destination,
3540 GFileCopyFlags flags,
3541 GCancellable *cancellable,
3542 GFileProgressCallback progress_callback,
3543 gpointer progress_callback_data,
3544 GError **error)
3546 GFileIface *iface;
3547 GError *my_error;
3548 gboolean res;
3550 g_return_val_if_fail (G_IS_FILE (source), FALSE);
3551 g_return_val_if_fail (G_IS_FILE (destination), FALSE);
3553 if (g_cancellable_set_error_if_cancelled (cancellable, error))
3554 return FALSE;
3556 iface = G_FILE_GET_IFACE (destination);
3557 if (iface->move)
3559 my_error = NULL;
3560 res = (* iface->move) (source, destination,
3561 flags, cancellable,
3562 progress_callback, progress_callback_data,
3563 &my_error);
3565 if (res)
3566 return TRUE;
3568 if (my_error->domain != G_IO_ERROR || my_error->code != G_IO_ERROR_NOT_SUPPORTED)
3570 g_propagate_error (error, my_error);
3571 return FALSE;
3573 else
3574 g_clear_error (&my_error);
3577 /* If the types are different, and the destination method failed
3578 * also try the source method
3580 if (G_OBJECT_TYPE (source) != G_OBJECT_TYPE (destination))
3582 iface = G_FILE_GET_IFACE (source);
3584 if (iface->move)
3586 my_error = NULL;
3587 res = (* iface->move) (source, destination,
3588 flags, cancellable,
3589 progress_callback, progress_callback_data,
3590 &my_error);
3592 if (res)
3593 return TRUE;
3595 if (my_error->domain != G_IO_ERROR || my_error->code != G_IO_ERROR_NOT_SUPPORTED)
3597 g_propagate_error (error, my_error);
3598 return FALSE;
3600 else
3601 g_clear_error (&my_error);
3605 if (flags & G_FILE_COPY_NO_FALLBACK_FOR_MOVE)
3607 g_set_error_literal (error, G_IO_ERROR,
3608 G_IO_ERROR_NOT_SUPPORTED,
3609 _("Operation not supported"));
3610 return FALSE;
3613 flags |= G_FILE_COPY_ALL_METADATA;
3614 if (!g_file_copy (source, destination, flags, cancellable,
3615 progress_callback, progress_callback_data,
3616 error))
3617 return FALSE;
3619 return g_file_delete (source, cancellable, error);
3623 * g_file_make_directory:
3624 * @file: input #GFile
3625 * @cancellable: (nullable): optional #GCancellable object,
3626 * %NULL to ignore
3627 * @error: a #GError, or %NULL
3629 * Creates a directory. Note that this will only create a child directory
3630 * of the immediate parent directory of the path or URI given by the #GFile.
3631 * To recursively create directories, see g_file_make_directory_with_parents().
3632 * This function will fail if the parent directory does not exist, setting
3633 * @error to %G_IO_ERROR_NOT_FOUND. If the file system doesn't support
3634 * creating directories, this function will fail, setting @error to
3635 * %G_IO_ERROR_NOT_SUPPORTED.
3637 * For a local #GFile the newly created directory will have the default
3638 * (current) ownership and permissions of the current process.
3640 * If @cancellable is not %NULL, then the operation can be cancelled by
3641 * triggering the cancellable object from another thread. If the operation
3642 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
3644 * Returns: %TRUE on successful creation, %FALSE otherwise.
3646 gboolean
3647 g_file_make_directory (GFile *file,
3648 GCancellable *cancellable,
3649 GError **error)
3651 GFileIface *iface;
3653 g_return_val_if_fail (G_IS_FILE (file), FALSE);
3655 if (g_cancellable_set_error_if_cancelled (cancellable, error))
3656 return FALSE;
3658 iface = G_FILE_GET_IFACE (file);
3660 if (iface->make_directory == NULL)
3662 g_set_error_literal (error, G_IO_ERROR,
3663 G_IO_ERROR_NOT_SUPPORTED,
3664 _("Operation not supported"));
3665 return FALSE;
3668 return (* iface->make_directory) (file, cancellable, error);
3672 * g_file_make_directory_async:
3673 * @file: input #GFile
3674 * @io_priority: the [I/O priority][io-priority] of the request
3675 * @cancellable: (nullable): optional #GCancellable object,
3676 * %NULL to ignore
3677 * @callback: a #GAsyncReadyCallback to call
3678 * when the request is satisfied
3679 * @user_data: the data to pass to callback function
3681 * Asynchronously creates a directory.
3683 * Virtual: make_directory_async
3684 * Since: 2.38
3686 void
3687 g_file_make_directory_async (GFile *file,
3688 int io_priority,
3689 GCancellable *cancellable,
3690 GAsyncReadyCallback callback,
3691 gpointer user_data)
3693 GFileIface *iface;
3695 g_return_if_fail (G_IS_FILE (file));
3697 iface = G_FILE_GET_IFACE (file);
3698 (* iface->make_directory_async) (file,
3699 io_priority,
3700 cancellable,
3701 callback,
3702 user_data);
3706 * g_file_make_directory_finish:
3707 * @file: input #GFile
3708 * @result: a #GAsyncResult
3709 * @error: a #GError, or %NULL
3711 * Finishes an asynchronous directory creation, started with
3712 * g_file_make_directory_async().
3714 * Virtual: make_directory_finish
3715 * Returns: %TRUE on successful directory creation, %FALSE otherwise.
3716 * Since: 2.38
3718 gboolean
3719 g_file_make_directory_finish (GFile *file,
3720 GAsyncResult *result,
3721 GError **error)
3723 GFileIface *iface;
3725 g_return_val_if_fail (G_IS_FILE (file), FALSE);
3726 g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
3728 iface = G_FILE_GET_IFACE (file);
3729 return (* iface->make_directory_finish) (file, result, error);
3733 * g_file_make_directory_with_parents:
3734 * @file: input #GFile
3735 * @cancellable: (nullable): optional #GCancellable object,
3736 * %NULL to ignore
3737 * @error: a #GError, or %NULL
3739 * Creates a directory and any parent directories that may not
3740 * exist similar to 'mkdir -p'. If the file system does not support
3741 * creating directories, this function will fail, setting @error to
3742 * %G_IO_ERROR_NOT_SUPPORTED. If the directory itself already exists,
3743 * this function will fail setting @error to %G_IO_ERROR_EXISTS, unlike
3744 * the similar g_mkdir_with_parents().
3746 * For a local #GFile the newly created directories will have the default
3747 * (current) ownership and permissions of the current process.
3749 * If @cancellable is not %NULL, then the operation can be cancelled by
3750 * triggering the cancellable object from another thread. If the operation
3751 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
3753 * Returns: %TRUE if all directories have been successfully created, %FALSE
3754 * otherwise.
3756 * Since: 2.18
3758 gboolean
3759 g_file_make_directory_with_parents (GFile *file,
3760 GCancellable *cancellable,
3761 GError **error)
3763 GFile *work_file = NULL;
3764 GList *list = NULL, *l;
3765 GError *my_error = NULL;
3767 g_return_val_if_fail (G_IS_FILE (file), FALSE);
3769 if (g_cancellable_set_error_if_cancelled (cancellable, error))
3770 return FALSE;
3772 /* Try for the simple case of not having to create any parent
3773 * directories. If any parent directory needs to be created, this
3774 * call will fail with NOT_FOUND. If that happens, then that value of
3775 * my_error persists into the while loop below.
3777 g_file_make_directory (file, cancellable, &my_error);
3778 if (!g_error_matches (my_error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND))
3780 if (my_error)
3781 g_propagate_error (error, my_error);
3782 return my_error == NULL;
3785 work_file = g_object_ref (file);
3787 /* Creates the parent directories as needed. In case any particular
3788 * creation operation fails for lack of other parent directories
3789 * (NOT_FOUND), the directory is added to a list of directories to
3790 * create later, and the value of my_error is retained until the next
3791 * iteration of the loop. After the loop my_error should either be
3792 * empty or contain a real failure condition.
3794 while (g_error_matches (my_error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND))
3796 GFile *parent_file;
3798 parent_file = g_file_get_parent (work_file);
3799 if (parent_file == NULL)
3800 break;
3802 g_clear_error (&my_error);
3803 g_file_make_directory (parent_file, cancellable, &my_error);
3804 /* Another process may have created the directory in between the
3805 * G_IO_ERROR_NOT_FOUND and now
3807 if (g_error_matches (my_error, G_IO_ERROR, G_IO_ERROR_EXISTS))
3808 g_clear_error (&my_error);
3810 g_object_unref (work_file);
3811 work_file = g_object_ref (parent_file);
3813 if (g_error_matches (my_error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND))
3814 list = g_list_prepend (list, parent_file); /* Transfer ownership of ref */
3815 else
3816 g_object_unref (parent_file);
3819 /* All directories should be able to be created now, so an error at
3820 * this point means the whole operation must fail -- except an EXISTS
3821 * error, which means that another process already created the
3822 * directory in between the previous failure and now.
3824 for (l = list; my_error == NULL && l; l = l->next)
3826 g_file_make_directory ((GFile *) l->data, cancellable, &my_error);
3827 if (g_error_matches (my_error, G_IO_ERROR, G_IO_ERROR_EXISTS))
3828 g_clear_error (&my_error);
3831 if (work_file)
3832 g_object_unref (work_file);
3834 /* Clean up */
3835 while (list != NULL)
3837 g_object_unref ((GFile *) list->data);
3838 list = g_list_remove (list, list->data);
3841 /* At this point an error in my_error means a that something
3842 * unexpected failed in either of the loops above, so the whole
3843 * operation must fail.
3845 if (my_error != NULL)
3847 g_propagate_error (error, my_error);
3848 return FALSE;
3851 return g_file_make_directory (file, cancellable, error);
3855 * g_file_make_symbolic_link:
3856 * @file: a #GFile with the name of the symlink to create
3857 * @symlink_value: (type filename): a string with the path for the target
3858 * of the new symlink
3859 * @cancellable: (nullable): optional #GCancellable object,
3860 * %NULL to ignore
3861 * @error: a #GError
3863 * Creates a symbolic link named @file which contains the string
3864 * @symlink_value.
3866 * If @cancellable is not %NULL, then the operation can be cancelled by
3867 * triggering the cancellable object from another thread. If the operation
3868 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
3870 * Returns: %TRUE on the creation of a new symlink, %FALSE otherwise.
3872 gboolean
3873 g_file_make_symbolic_link (GFile *file,
3874 const char *symlink_value,
3875 GCancellable *cancellable,
3876 GError **error)
3878 GFileIface *iface;
3880 g_return_val_if_fail (G_IS_FILE (file), FALSE);
3881 g_return_val_if_fail (symlink_value != NULL, FALSE);
3883 if (g_cancellable_set_error_if_cancelled (cancellable, error))
3884 return FALSE;
3886 if (*symlink_value == '\0')
3888 g_set_error_literal (error, G_IO_ERROR,
3889 G_IO_ERROR_INVALID_ARGUMENT,
3890 _("Invalid symlink value given"));
3891 return FALSE;
3894 iface = G_FILE_GET_IFACE (file);
3896 if (iface->make_symbolic_link == NULL)
3898 g_set_error_literal (error, G_IO_ERROR,
3899 G_IO_ERROR_NOT_SUPPORTED,
3900 _("Operation not supported"));
3901 return FALSE;
3904 return (* iface->make_symbolic_link) (file, symlink_value, cancellable, error);
3908 * g_file_delete:
3909 * @file: input #GFile
3910 * @cancellable: (nullable): optional #GCancellable object,
3911 * %NULL to ignore
3912 * @error: a #GError, or %NULL
3914 * Deletes a file. If the @file is a directory, it will only be
3915 * deleted if it is empty. This has the same semantics as g_unlink().
3917 * If @cancellable is not %NULL, then the operation can be cancelled by
3918 * triggering the cancellable object from another thread. If the operation
3919 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
3921 * Virtual: delete_file
3922 * Returns: %TRUE if the file was deleted. %FALSE otherwise.
3924 gboolean
3925 g_file_delete (GFile *file,
3926 GCancellable *cancellable,
3927 GError **error)
3929 GFileIface *iface;
3931 g_return_val_if_fail (G_IS_FILE (file), FALSE);
3933 if (g_cancellable_set_error_if_cancelled (cancellable, error))
3934 return FALSE;
3936 iface = G_FILE_GET_IFACE (file);
3938 if (iface->delete_file == NULL)
3940 g_set_error_literal (error, G_IO_ERROR,
3941 G_IO_ERROR_NOT_SUPPORTED,
3942 _("Operation not supported"));
3943 return FALSE;
3946 return (* iface->delete_file) (file, cancellable, error);
3950 * g_file_delete_async:
3951 * @file: input #GFile
3952 * @io_priority: the [I/O priority][io-priority] of the request
3953 * @cancellable: (nullable): optional #GCancellable object,
3954 * %NULL to ignore
3955 * @callback: a #GAsyncReadyCallback to call
3956 * when the request is satisfied
3957 * @user_data: the data to pass to callback function
3959 * Asynchronously delete a file. If the @file is a directory, it will
3960 * only be deleted if it is empty. This has the same semantics as
3961 * g_unlink().
3963 * Virtual: delete_file_async
3964 * Since: 2.34
3966 void
3967 g_file_delete_async (GFile *file,
3968 int io_priority,
3969 GCancellable *cancellable,
3970 GAsyncReadyCallback callback,
3971 gpointer user_data)
3973 GFileIface *iface;
3975 g_return_if_fail (G_IS_FILE (file));
3977 iface = G_FILE_GET_IFACE (file);
3978 (* iface->delete_file_async) (file,
3979 io_priority,
3980 cancellable,
3981 callback,
3982 user_data);
3986 * g_file_delete_finish:
3987 * @file: input #GFile
3988 * @result: a #GAsyncResult
3989 * @error: a #GError, or %NULL
3991 * Finishes deleting a file started with g_file_delete_async().
3993 * Virtual: delete_file_finish
3994 * Returns: %TRUE if the file was deleted. %FALSE otherwise.
3995 * Since: 2.34
3997 gboolean
3998 g_file_delete_finish (GFile *file,
3999 GAsyncResult *result,
4000 GError **error)
4002 GFileIface *iface;
4004 g_return_val_if_fail (G_IS_FILE (file), FALSE);
4005 g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
4007 if (g_async_result_legacy_propagate_error (result, error))
4008 return FALSE;
4010 iface = G_FILE_GET_IFACE (file);
4011 return (* iface->delete_file_finish) (file, result, error);
4015 * g_file_trash:
4016 * @file: #GFile to send to trash
4017 * @cancellable: (nullable): optional #GCancellable object,
4018 * %NULL to ignore
4019 * @error: a #GError, or %NULL
4021 * Sends @file to the "Trashcan", if possible. This is similar to
4022 * deleting it, but the user can recover it before emptying the trashcan.
4023 * Not all file systems support trashing, so this call can return the
4024 * %G_IO_ERROR_NOT_SUPPORTED error.
4026 * If @cancellable is not %NULL, then the operation can be cancelled by
4027 * triggering the cancellable object from another thread. If the operation
4028 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
4030 * Virtual: trash
4031 * Returns: %TRUE on successful trash, %FALSE otherwise.
4033 gboolean
4034 g_file_trash (GFile *file,
4035 GCancellable *cancellable,
4036 GError **error)
4038 GFileIface *iface;
4040 g_return_val_if_fail (G_IS_FILE (file), FALSE);
4042 if (g_cancellable_set_error_if_cancelled (cancellable, error))
4043 return FALSE;
4045 iface = G_FILE_GET_IFACE (file);
4047 if (iface->trash == NULL)
4049 g_set_error_literal (error,
4050 G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
4051 _("Trash not supported"));
4052 return FALSE;
4055 return (* iface->trash) (file, cancellable, error);
4059 * g_file_trash_async:
4060 * @file: input #GFile
4061 * @io_priority: the [I/O priority][io-priority] of the request
4062 * @cancellable: (nullable): optional #GCancellable object,
4063 * %NULL to ignore
4064 * @callback: a #GAsyncReadyCallback to call
4065 * when the request is satisfied
4066 * @user_data: the data to pass to callback function
4068 * Asynchronously sends @file to the Trash location, if possible.
4070 * Virtual: trash_async
4071 * Since: 2.38
4073 void
4074 g_file_trash_async (GFile *file,
4075 int io_priority,
4076 GCancellable *cancellable,
4077 GAsyncReadyCallback callback,
4078 gpointer user_data)
4080 GFileIface *iface;
4082 g_return_if_fail (G_IS_FILE (file));
4084 iface = G_FILE_GET_IFACE (file);
4085 (* iface->trash_async) (file,
4086 io_priority,
4087 cancellable,
4088 callback,
4089 user_data);
4093 * g_file_trash_finish:
4094 * @file: input #GFile
4095 * @result: a #GAsyncResult
4096 * @error: a #GError, or %NULL
4098 * Finishes an asynchronous file trashing operation, started with
4099 * g_file_trash_async().
4101 * Virtual: trash_finish
4102 * Returns: %TRUE on successful trash, %FALSE otherwise.
4103 * Since: 2.38
4105 gboolean
4106 g_file_trash_finish (GFile *file,
4107 GAsyncResult *result,
4108 GError **error)
4110 GFileIface *iface;
4112 g_return_val_if_fail (G_IS_FILE (file), FALSE);
4113 g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
4115 iface = G_FILE_GET_IFACE (file);
4116 return (* iface->trash_finish) (file, result, error);
4120 * g_file_set_display_name:
4121 * @file: input #GFile
4122 * @display_name: a string
4123 * @cancellable: (nullable): optional #GCancellable object,
4124 * %NULL to ignore
4125 * @error: a #GError, or %NULL
4127 * Renames @file to the specified display name.
4129 * The display name is converted from UTF-8 to the correct encoding
4130 * for the target filesystem if possible and the @file is renamed to this.
4132 * If you want to implement a rename operation in the user interface the
4133 * edit name (#G_FILE_ATTRIBUTE_STANDARD_EDIT_NAME) should be used as the
4134 * initial value in the rename widget, and then the result after editing
4135 * should be passed to g_file_set_display_name().
4137 * On success the resulting converted filename is returned.
4139 * If @cancellable is not %NULL, then the operation can be cancelled by
4140 * triggering the cancellable object from another thread. If the operation
4141 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
4143 * Returns: (transfer full): a #GFile specifying what @file was renamed to,
4144 * or %NULL if there was an error.
4145 * Free the returned object with g_object_unref().
4147 GFile *
4148 g_file_set_display_name (GFile *file,
4149 const gchar *display_name,
4150 GCancellable *cancellable,
4151 GError **error)
4153 GFileIface *iface;
4155 g_return_val_if_fail (G_IS_FILE (file), NULL);
4156 g_return_val_if_fail (display_name != NULL, NULL);
4158 if (strchr (display_name, G_DIR_SEPARATOR) != NULL)
4160 g_set_error (error,
4161 G_IO_ERROR,
4162 G_IO_ERROR_INVALID_ARGUMENT,
4163 _("File names cannot contain “%c”"), G_DIR_SEPARATOR);
4164 return NULL;
4167 if (g_cancellable_set_error_if_cancelled (cancellable, error))
4168 return NULL;
4170 iface = G_FILE_GET_IFACE (file);
4172 return (* iface->set_display_name) (file, display_name, cancellable, error);
4176 * g_file_set_display_name_async:
4177 * @file: input #GFile
4178 * @display_name: a string
4179 * @io_priority: the [I/O priority][io-priority] of the request
4180 * @cancellable: (nullable): optional #GCancellable object,
4181 * %NULL to ignore
4182 * @callback: (scope async): a #GAsyncReadyCallback to call
4183 * when the request is satisfied
4184 * @user_data: (closure): the data to pass to callback function
4186 * Asynchronously sets the display name for a given #GFile.
4188 * For more details, see g_file_set_display_name() which is
4189 * the synchronous version of this call.
4191 * When the operation is finished, @callback will be called.
4192 * You can then call g_file_set_display_name_finish() to get
4193 * the result of the operation.
4195 void
4196 g_file_set_display_name_async (GFile *file,
4197 const gchar *display_name,
4198 gint io_priority,
4199 GCancellable *cancellable,
4200 GAsyncReadyCallback callback,
4201 gpointer user_data)
4203 GFileIface *iface;
4205 g_return_if_fail (G_IS_FILE (file));
4206 g_return_if_fail (display_name != NULL);
4208 iface = G_FILE_GET_IFACE (file);
4209 (* iface->set_display_name_async) (file,
4210 display_name,
4211 io_priority,
4212 cancellable,
4213 callback,
4214 user_data);
4218 * g_file_set_display_name_finish:
4219 * @file: input #GFile
4220 * @res: a #GAsyncResult
4221 * @error: a #GError, or %NULL
4223 * Finishes setting a display name started with
4224 * g_file_set_display_name_async().
4226 * Returns: (transfer full): a #GFile or %NULL on error.
4227 * Free the returned object with g_object_unref().
4229 GFile *
4230 g_file_set_display_name_finish (GFile *file,
4231 GAsyncResult *res,
4232 GError **error)
4234 GFileIface *iface;
4236 g_return_val_if_fail (G_IS_FILE (file), NULL);
4237 g_return_val_if_fail (G_IS_ASYNC_RESULT (res), NULL);
4239 if (g_async_result_legacy_propagate_error (res, error))
4240 return NULL;
4242 iface = G_FILE_GET_IFACE (file);
4243 return (* iface->set_display_name_finish) (file, res, error);
4247 * g_file_query_settable_attributes:
4248 * @file: input #GFile
4249 * @cancellable: (nullable): optional #GCancellable object,
4250 * %NULL to ignore
4251 * @error: a #GError, or %NULL
4253 * Obtain the list of settable attributes for the file.
4255 * Returns the type and full attribute name of all the attributes
4256 * that can be set on this file. This doesn't mean setting it will
4257 * always succeed though, you might get an access failure, or some
4258 * specific file may not support a specific attribute.
4260 * If @cancellable is not %NULL, then the operation can be cancelled by
4261 * triggering the cancellable object from another thread. If the operation
4262 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
4264 * Returns: a #GFileAttributeInfoList describing the settable attributes.
4265 * When you are done with it, release it with
4266 * g_file_attribute_info_list_unref()
4268 GFileAttributeInfoList *
4269 g_file_query_settable_attributes (GFile *file,
4270 GCancellable *cancellable,
4271 GError **error)
4273 GFileIface *iface;
4274 GError *my_error;
4275 GFileAttributeInfoList *list;
4277 g_return_val_if_fail (G_IS_FILE (file), NULL);
4279 if (g_cancellable_set_error_if_cancelled (cancellable, error))
4280 return NULL;
4282 iface = G_FILE_GET_IFACE (file);
4284 if (iface->query_settable_attributes == NULL)
4285 return g_file_attribute_info_list_new ();
4287 my_error = NULL;
4288 list = (* iface->query_settable_attributes) (file, cancellable, &my_error);
4290 if (list == NULL)
4292 if (my_error->domain == G_IO_ERROR && my_error->code == G_IO_ERROR_NOT_SUPPORTED)
4294 list = g_file_attribute_info_list_new ();
4295 g_error_free (my_error);
4297 else
4298 g_propagate_error (error, my_error);
4301 return list;
4305 * g_file_query_writable_namespaces:
4306 * @file: input #GFile
4307 * @cancellable: (nullable): optional #GCancellable object,
4308 * %NULL to ignore
4309 * @error: a #GError, or %NULL
4311 * Obtain the list of attribute namespaces where new attributes
4312 * can be created by a user. An example of this is extended
4313 * attributes (in the "xattr" namespace).
4315 * If @cancellable is not %NULL, then the operation can be cancelled by
4316 * triggering the cancellable object from another thread. If the operation
4317 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
4319 * Returns: a #GFileAttributeInfoList describing the writable namespaces.
4320 * When you are done with it, release it with
4321 * g_file_attribute_info_list_unref()
4323 GFileAttributeInfoList *
4324 g_file_query_writable_namespaces (GFile *file,
4325 GCancellable *cancellable,
4326 GError **error)
4328 GFileIface *iface;
4329 GError *my_error;
4330 GFileAttributeInfoList *list;
4332 g_return_val_if_fail (G_IS_FILE (file), NULL);
4334 if (g_cancellable_set_error_if_cancelled (cancellable, error))
4335 return NULL;
4337 iface = G_FILE_GET_IFACE (file);
4339 if (iface->query_writable_namespaces == NULL)
4340 return g_file_attribute_info_list_new ();
4342 my_error = NULL;
4343 list = (* iface->query_writable_namespaces) (file, cancellable, &my_error);
4345 if (list == NULL)
4347 g_warn_if_reached();
4348 list = g_file_attribute_info_list_new ();
4351 if (my_error != NULL)
4353 if (my_error->domain == G_IO_ERROR && my_error->code == G_IO_ERROR_NOT_SUPPORTED)
4355 g_error_free (my_error);
4357 else
4358 g_propagate_error (error, my_error);
4361 return list;
4365 * g_file_set_attribute:
4366 * @file: input #GFile
4367 * @attribute: a string containing the attribute's name
4368 * @type: The type of the attribute
4369 * @value_p: (nullable): a pointer to the value (or the pointer
4370 * itself if the type is a pointer type)
4371 * @flags: a set of #GFileQueryInfoFlags
4372 * @cancellable: (nullable): optional #GCancellable object,
4373 * %NULL to ignore
4374 * @error: a #GError, or %NULL
4376 * Sets an attribute in the file with attribute name @attribute to @value.
4378 * Some attributes can be unset by setting @attribute to
4379 * %G_FILE_ATTRIBUTE_TYPE_INVALID and @value_p to %NULL.
4381 * If @cancellable is not %NULL, then the operation can be cancelled by
4382 * triggering the cancellable object from another thread. If the operation
4383 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
4385 * Returns: %TRUE if the attribute was set, %FALSE otherwise.
4387 gboolean
4388 g_file_set_attribute (GFile *file,
4389 const gchar *attribute,
4390 GFileAttributeType type,
4391 gpointer value_p,
4392 GFileQueryInfoFlags flags,
4393 GCancellable *cancellable,
4394 GError **error)
4396 GFileIface *iface;
4398 g_return_val_if_fail (G_IS_FILE (file), FALSE);
4399 g_return_val_if_fail (attribute != NULL && *attribute != '\0', FALSE);
4401 if (g_cancellable_set_error_if_cancelled (cancellable, error))
4402 return FALSE;
4404 iface = G_FILE_GET_IFACE (file);
4406 if (iface->set_attribute == NULL)
4408 g_set_error_literal (error, G_IO_ERROR,
4409 G_IO_ERROR_NOT_SUPPORTED,
4410 _("Operation not supported"));
4411 return FALSE;
4414 return (* iface->set_attribute) (file, attribute, type, value_p, flags, cancellable, error);
4418 * g_file_set_attributes_from_info:
4419 * @file: input #GFile
4420 * @info: a #GFileInfo
4421 * @flags: #GFileQueryInfoFlags
4422 * @cancellable: (nullable): optional #GCancellable object,
4423 * %NULL to ignore
4424 * @error: a #GError, or %NULL
4426 * Tries to set all attributes in the #GFileInfo on the target
4427 * values, not stopping on the first error.
4429 * If there is any error during this operation then @error will
4430 * be set to the first error. Error on particular fields are flagged
4431 * by setting the "status" field in the attribute value to
4432 * %G_FILE_ATTRIBUTE_STATUS_ERROR_SETTING, which means you can
4433 * also detect further errors.
4435 * If @cancellable is not %NULL, then the operation can be cancelled by
4436 * triggering the cancellable object from another thread. If the operation
4437 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
4439 * Returns: %FALSE if there was any error, %TRUE otherwise.
4441 gboolean
4442 g_file_set_attributes_from_info (GFile *file,
4443 GFileInfo *info,
4444 GFileQueryInfoFlags flags,
4445 GCancellable *cancellable,
4446 GError **error)
4448 GFileIface *iface;
4450 g_return_val_if_fail (G_IS_FILE (file), FALSE);
4451 g_return_val_if_fail (G_IS_FILE_INFO (info), FALSE);
4453 if (g_cancellable_set_error_if_cancelled (cancellable, error))
4454 return FALSE;
4456 g_file_info_clear_status (info);
4458 iface = G_FILE_GET_IFACE (file);
4460 return (* iface->set_attributes_from_info) (file,
4461 info,
4462 flags,
4463 cancellable,
4464 error);
4467 static gboolean
4468 g_file_real_set_attributes_from_info (GFile *file,
4469 GFileInfo *info,
4470 GFileQueryInfoFlags flags,
4471 GCancellable *cancellable,
4472 GError **error)
4474 char **attributes;
4475 int i;
4476 gboolean res;
4477 GFileAttributeValue *value;
4479 res = TRUE;
4481 attributes = g_file_info_list_attributes (info, NULL);
4483 for (i = 0; attributes[i] != NULL; i++)
4485 value = _g_file_info_get_attribute_value (info, attributes[i]);
4487 if (value->status != G_FILE_ATTRIBUTE_STATUS_UNSET)
4488 continue;
4490 if (!g_file_set_attribute (file, attributes[i],
4491 value->type, _g_file_attribute_value_peek_as_pointer (value),
4492 flags, cancellable, error))
4494 value->status = G_FILE_ATTRIBUTE_STATUS_ERROR_SETTING;
4495 res = FALSE;
4496 /* Don't set error multiple times */
4497 error = NULL;
4499 else
4500 value->status = G_FILE_ATTRIBUTE_STATUS_SET;
4503 g_strfreev (attributes);
4505 return res;
4509 * g_file_set_attributes_async:
4510 * @file: input #GFile
4511 * @info: a #GFileInfo
4512 * @flags: a #GFileQueryInfoFlags
4513 * @io_priority: the [I/O priority][io-priority] of the request
4514 * @cancellable: (nullable): optional #GCancellable object,
4515 * %NULL to ignore
4516 * @callback: (scope async): a #GAsyncReadyCallback
4517 * @user_data: (closure): a #gpointer
4519 * Asynchronously sets the attributes of @file with @info.
4521 * For more details, see g_file_set_attributes_from_info(),
4522 * which is the synchronous version of this call.
4524 * When the operation is finished, @callback will be called.
4525 * You can then call g_file_set_attributes_finish() to get
4526 * the result of the operation.
4528 void
4529 g_file_set_attributes_async (GFile *file,
4530 GFileInfo *info,
4531 GFileQueryInfoFlags flags,
4532 int io_priority,
4533 GCancellable *cancellable,
4534 GAsyncReadyCallback callback,
4535 gpointer user_data)
4537 GFileIface *iface;
4539 g_return_if_fail (G_IS_FILE (file));
4540 g_return_if_fail (G_IS_FILE_INFO (info));
4542 iface = G_FILE_GET_IFACE (file);
4543 (* iface->set_attributes_async) (file,
4544 info,
4545 flags,
4546 io_priority,
4547 cancellable,
4548 callback,
4549 user_data);
4553 * g_file_set_attributes_finish:
4554 * @file: input #GFile
4555 * @result: a #GAsyncResult
4556 * @info: (out) (transfer full): a #GFileInfo
4557 * @error: a #GError, or %NULL
4559 * Finishes setting an attribute started in g_file_set_attributes_async().
4561 * Returns: %TRUE if the attributes were set correctly, %FALSE otherwise.
4563 gboolean
4564 g_file_set_attributes_finish (GFile *file,
4565 GAsyncResult *result,
4566 GFileInfo **info,
4567 GError **error)
4569 GFileIface *iface;
4571 g_return_val_if_fail (G_IS_FILE (file), FALSE);
4572 g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
4574 /* No standard handling of errors here, as we must set info even
4575 * on errors
4577 iface = G_FILE_GET_IFACE (file);
4578 return (* iface->set_attributes_finish) (file, result, info, error);
4582 * g_file_set_attribute_string:
4583 * @file: input #GFile
4584 * @attribute: a string containing the attribute's name
4585 * @value: a string containing the attribute's value
4586 * @flags: #GFileQueryInfoFlags
4587 * @cancellable: (nullable): optional #GCancellable object,
4588 * %NULL to ignore
4589 * @error: a #GError, or %NULL
4591 * Sets @attribute of type %G_FILE_ATTRIBUTE_TYPE_STRING to @value.
4592 * If @attribute is of a different type, this operation will fail.
4594 * If @cancellable is not %NULL, then the operation can be cancelled by
4595 * triggering the cancellable object from another thread. If the operation
4596 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
4598 * Returns: %TRUE if the @attribute was successfully set, %FALSE otherwise.
4600 gboolean
4601 g_file_set_attribute_string (GFile *file,
4602 const char *attribute,
4603 const char *value,
4604 GFileQueryInfoFlags flags,
4605 GCancellable *cancellable,
4606 GError **error)
4608 return g_file_set_attribute (file, attribute,
4609 G_FILE_ATTRIBUTE_TYPE_STRING, (gpointer)value,
4610 flags, cancellable, error);
4614 * g_file_set_attribute_byte_string:
4615 * @file: input #GFile
4616 * @attribute: a string containing the attribute's name
4617 * @value: a string containing the attribute's new value
4618 * @flags: a #GFileQueryInfoFlags
4619 * @cancellable: (nullable): optional #GCancellable object,
4620 * %NULL to ignore
4621 * @error: a #GError, or %NULL
4623 * Sets @attribute of type %G_FILE_ATTRIBUTE_TYPE_BYTE_STRING to @value.
4624 * If @attribute is of a different type, this operation will fail,
4625 * returning %FALSE.
4627 * If @cancellable is not %NULL, then the operation can be cancelled by
4628 * triggering the cancellable object from another thread. If the operation
4629 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
4631 * Returns: %TRUE if the @attribute was successfully set to @value
4632 * in the @file, %FALSE otherwise.
4634 gboolean
4635 g_file_set_attribute_byte_string (GFile *file,
4636 const gchar *attribute,
4637 const gchar *value,
4638 GFileQueryInfoFlags flags,
4639 GCancellable *cancellable,
4640 GError **error)
4642 return g_file_set_attribute (file, attribute,
4643 G_FILE_ATTRIBUTE_TYPE_BYTE_STRING, (gpointer)value,
4644 flags, cancellable, error);
4648 * g_file_set_attribute_uint32:
4649 * @file: input #GFile
4650 * @attribute: a string containing the attribute's name
4651 * @value: a #guint32 containing the attribute's new value
4652 * @flags: a #GFileQueryInfoFlags
4653 * @cancellable: (nullable): optional #GCancellable object,
4654 * %NULL to ignore
4655 * @error: a #GError, or %NULL
4657 * Sets @attribute of type %G_FILE_ATTRIBUTE_TYPE_UINT32 to @value.
4658 * If @attribute is of a different type, this operation will fail.
4660 * If @cancellable is not %NULL, then the operation can be cancelled by
4661 * triggering the cancellable object from another thread. If the operation
4662 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
4664 * Returns: %TRUE if the @attribute was successfully set to @value
4665 * in the @file, %FALSE otherwise.
4667 gboolean
4668 g_file_set_attribute_uint32 (GFile *file,
4669 const gchar *attribute,
4670 guint32 value,
4671 GFileQueryInfoFlags flags,
4672 GCancellable *cancellable,
4673 GError **error)
4675 return g_file_set_attribute (file, attribute,
4676 G_FILE_ATTRIBUTE_TYPE_UINT32, &value,
4677 flags, cancellable, error);
4681 * g_file_set_attribute_int32:
4682 * @file: input #GFile
4683 * @attribute: a string containing the attribute's name
4684 * @value: a #gint32 containing the attribute's new value
4685 * @flags: a #GFileQueryInfoFlags
4686 * @cancellable: (nullable): optional #GCancellable object,
4687 * %NULL to ignore
4688 * @error: a #GError, or %NULL
4690 * Sets @attribute of type %G_FILE_ATTRIBUTE_TYPE_INT32 to @value.
4691 * If @attribute is of a different type, this operation will fail.
4693 * If @cancellable is not %NULL, then the operation can be cancelled by
4694 * triggering the cancellable object from another thread. If the operation
4695 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
4697 * Returns: %TRUE if the @attribute was successfully set to @value
4698 * in the @file, %FALSE otherwise.
4700 gboolean
4701 g_file_set_attribute_int32 (GFile *file,
4702 const gchar *attribute,
4703 gint32 value,
4704 GFileQueryInfoFlags flags,
4705 GCancellable *cancellable,
4706 GError **error)
4708 return g_file_set_attribute (file, attribute,
4709 G_FILE_ATTRIBUTE_TYPE_INT32, &value,
4710 flags, cancellable, error);
4714 * g_file_set_attribute_uint64:
4715 * @file: input #GFile
4716 * @attribute: a string containing the attribute's name
4717 * @value: a #guint64 containing the attribute's new value
4718 * @flags: a #GFileQueryInfoFlags
4719 * @cancellable: (nullable): optional #GCancellable object,
4720 * %NULL to ignore
4721 * @error: a #GError, or %NULL
4723 * Sets @attribute of type %G_FILE_ATTRIBUTE_TYPE_UINT64 to @value.
4724 * If @attribute is of a different type, this operation will fail.
4726 * If @cancellable is not %NULL, then the operation can be cancelled by
4727 * triggering the cancellable object from another thread. If the operation
4728 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
4730 * Returns: %TRUE if the @attribute was successfully set to @value
4731 * in the @file, %FALSE otherwise.
4733 gboolean
4734 g_file_set_attribute_uint64 (GFile *file,
4735 const gchar *attribute,
4736 guint64 value,
4737 GFileQueryInfoFlags flags,
4738 GCancellable *cancellable,
4739 GError **error)
4741 return g_file_set_attribute (file, attribute,
4742 G_FILE_ATTRIBUTE_TYPE_UINT64, &value,
4743 flags, cancellable, error);
4747 * g_file_set_attribute_int64:
4748 * @file: input #GFile
4749 * @attribute: a string containing the attribute's name
4750 * @value: a #guint64 containing the attribute's new value
4751 * @flags: a #GFileQueryInfoFlags
4752 * @cancellable: (nullable): optional #GCancellable object,
4753 * %NULL to ignore
4754 * @error: a #GError, or %NULL
4756 * Sets @attribute of type %G_FILE_ATTRIBUTE_TYPE_INT64 to @value.
4757 * If @attribute is of a different type, this operation will fail.
4759 * If @cancellable is not %NULL, then the operation can be cancelled by
4760 * triggering the cancellable object from another thread. If the operation
4761 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
4763 * Returns: %TRUE if the @attribute was successfully set, %FALSE otherwise.
4765 gboolean
4766 g_file_set_attribute_int64 (GFile *file,
4767 const gchar *attribute,
4768 gint64 value,
4769 GFileQueryInfoFlags flags,
4770 GCancellable *cancellable,
4771 GError **error)
4773 return g_file_set_attribute (file, attribute,
4774 G_FILE_ATTRIBUTE_TYPE_INT64, &value,
4775 flags, cancellable, error);
4779 * g_file_mount_mountable:
4780 * @file: input #GFile
4781 * @flags: flags affecting the operation
4782 * @mount_operation: (nullable): a #GMountOperation,
4783 * or %NULL to avoid user interaction
4784 * @cancellable: (nullable): optional #GCancellable object,
4785 * %NULL to ignore
4786 * @callback: (scope async) (nullable): a #GAsyncReadyCallback to call
4787 * when the request is satisfied, or %NULL
4788 * @user_data: (closure): the data to pass to callback function
4790 * Mounts a file of type G_FILE_TYPE_MOUNTABLE.
4791 * Using @mount_operation, you can request callbacks when, for instance,
4792 * passwords are needed during authentication.
4794 * If @cancellable is not %NULL, then the operation can be cancelled by
4795 * triggering the cancellable object from another thread. If the operation
4796 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
4798 * When the operation is finished, @callback will be called.
4799 * You can then call g_file_mount_mountable_finish() to get
4800 * the result of the operation.
4802 void
4803 g_file_mount_mountable (GFile *file,
4804 GMountMountFlags flags,
4805 GMountOperation *mount_operation,
4806 GCancellable *cancellable,
4807 GAsyncReadyCallback callback,
4808 gpointer user_data)
4810 GFileIface *iface;
4812 g_return_if_fail (G_IS_FILE (file));
4814 iface = G_FILE_GET_IFACE (file);
4816 if (iface->mount_mountable == NULL)
4818 g_task_report_new_error (file, callback, user_data,
4819 g_file_mount_mountable,
4820 G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
4821 _("Operation not supported"));
4822 return;
4825 (* iface->mount_mountable) (file,
4826 flags,
4827 mount_operation,
4828 cancellable,
4829 callback,
4830 user_data);
4834 * g_file_mount_mountable_finish:
4835 * @file: input #GFile
4836 * @result: a #GAsyncResult
4837 * @error: a #GError, or %NULL
4839 * Finishes a mount operation. See g_file_mount_mountable() for details.
4841 * Finish an asynchronous mount operation that was started
4842 * with g_file_mount_mountable().
4844 * Returns: (transfer full): a #GFile or %NULL on error.
4845 * Free the returned object with g_object_unref().
4847 GFile *
4848 g_file_mount_mountable_finish (GFile *file,
4849 GAsyncResult *result,
4850 GError **error)
4852 GFileIface *iface;
4854 g_return_val_if_fail (G_IS_FILE (file), NULL);
4855 g_return_val_if_fail (G_IS_ASYNC_RESULT (result), NULL);
4857 if (g_async_result_legacy_propagate_error (result, error))
4858 return NULL;
4859 else if (g_async_result_is_tagged (result, g_file_mount_mountable))
4860 return g_task_propagate_pointer (G_TASK (result), error);
4862 iface = G_FILE_GET_IFACE (file);
4863 return (* iface->mount_mountable_finish) (file, result, error);
4867 * g_file_unmount_mountable:
4868 * @file: input #GFile
4869 * @flags: flags affecting the operation
4870 * @cancellable: (nullable): optional #GCancellable object,
4871 * %NULL to ignore
4872 * @callback: (scope async) (nullable): a #GAsyncReadyCallback to call
4873 * when the request is satisfied, or %NULL
4874 * @user_data: (closure): the data to pass to callback function
4876 * Unmounts a file of type G_FILE_TYPE_MOUNTABLE.
4878 * If @cancellable is not %NULL, then the operation can be cancelled by
4879 * triggering the cancellable object from another thread. If the operation
4880 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
4882 * When the operation is finished, @callback will be called.
4883 * You can then call g_file_unmount_mountable_finish() to get
4884 * the result of the operation.
4886 * Deprecated: 2.22: Use g_file_unmount_mountable_with_operation() instead.
4888 void
4889 g_file_unmount_mountable (GFile *file,
4890 GMountUnmountFlags flags,
4891 GCancellable *cancellable,
4892 GAsyncReadyCallback callback,
4893 gpointer user_data)
4895 GFileIface *iface;
4897 g_return_if_fail (G_IS_FILE (file));
4899 iface = G_FILE_GET_IFACE (file);
4901 if (iface->unmount_mountable == NULL)
4903 g_task_report_new_error (file, callback, user_data,
4904 g_file_unmount_mountable_with_operation,
4905 G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
4906 _("Operation not supported"));
4907 return;
4910 (* iface->unmount_mountable) (file,
4911 flags,
4912 cancellable,
4913 callback,
4914 user_data);
4918 * g_file_unmount_mountable_finish:
4919 * @file: input #GFile
4920 * @result: a #GAsyncResult
4921 * @error: a #GError, or %NULL
4923 * Finishes an unmount operation, see g_file_unmount_mountable() for details.
4925 * Finish an asynchronous unmount operation that was started
4926 * with g_file_unmount_mountable().
4928 * Returns: %TRUE if the operation finished successfully.
4929 * %FALSE otherwise.
4931 * Deprecated: 2.22: Use g_file_unmount_mountable_with_operation_finish()
4932 * instead.
4934 gboolean
4935 g_file_unmount_mountable_finish (GFile *file,
4936 GAsyncResult *result,
4937 GError **error)
4939 GFileIface *iface;
4941 g_return_val_if_fail (G_IS_FILE (file), FALSE);
4942 g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
4944 if (g_async_result_legacy_propagate_error (result, error))
4945 return FALSE;
4946 else if (g_async_result_is_tagged (result, g_file_unmount_mountable_with_operation))
4947 return g_task_propagate_boolean (G_TASK (result), error);
4949 iface = G_FILE_GET_IFACE (file);
4950 return (* iface->unmount_mountable_finish) (file, result, error);
4954 * g_file_unmount_mountable_with_operation:
4955 * @file: input #GFile
4956 * @flags: flags affecting the operation
4957 * @mount_operation: (nullable): a #GMountOperation,
4958 * or %NULL to avoid user interaction
4959 * @cancellable: (nullable): optional #GCancellable object,
4960 * %NULL to ignore
4961 * @callback: (scope async) (nullable): a #GAsyncReadyCallback to call
4962 * when the request is satisfied, or %NULL
4963 * @user_data: (closure): the data to pass to callback function
4965 * Unmounts a file of type #G_FILE_TYPE_MOUNTABLE.
4967 * If @cancellable is not %NULL, then the operation can be cancelled by
4968 * triggering the cancellable object from another thread. If the operation
4969 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
4971 * When the operation is finished, @callback will be called.
4972 * You can then call g_file_unmount_mountable_finish() to get
4973 * the result of the operation.
4975 * Since: 2.22
4977 void
4978 g_file_unmount_mountable_with_operation (GFile *file,
4979 GMountUnmountFlags flags,
4980 GMountOperation *mount_operation,
4981 GCancellable *cancellable,
4982 GAsyncReadyCallback callback,
4983 gpointer user_data)
4985 GFileIface *iface;
4987 g_return_if_fail (G_IS_FILE (file));
4989 iface = G_FILE_GET_IFACE (file);
4991 if (iface->unmount_mountable == NULL && iface->unmount_mountable_with_operation == NULL)
4993 g_task_report_new_error (file, callback, user_data,
4994 g_file_unmount_mountable_with_operation,
4995 G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
4996 _("Operation not supported"));
4997 return;
5000 if (iface->unmount_mountable_with_operation != NULL)
5001 (* iface->unmount_mountable_with_operation) (file,
5002 flags,
5003 mount_operation,
5004 cancellable,
5005 callback,
5006 user_data);
5007 else
5008 (* iface->unmount_mountable) (file,
5009 flags,
5010 cancellable,
5011 callback,
5012 user_data);
5016 * g_file_unmount_mountable_with_operation_finish:
5017 * @file: input #GFile
5018 * @result: a #GAsyncResult
5019 * @error: a #GError, or %NULL
5021 * Finishes an unmount operation,
5022 * see g_file_unmount_mountable_with_operation() for details.
5024 * Finish an asynchronous unmount operation that was started
5025 * with g_file_unmount_mountable_with_operation().
5027 * Returns: %TRUE if the operation finished successfully.
5028 * %FALSE otherwise.
5030 * Since: 2.22
5032 gboolean
5033 g_file_unmount_mountable_with_operation_finish (GFile *file,
5034 GAsyncResult *result,
5035 GError **error)
5037 GFileIface *iface;
5039 g_return_val_if_fail (G_IS_FILE (file), FALSE);
5040 g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
5042 if (g_async_result_legacy_propagate_error (result, error))
5043 return FALSE;
5044 else if (g_async_result_is_tagged (result, g_file_unmount_mountable_with_operation))
5045 return g_task_propagate_boolean (G_TASK (result), error);
5047 iface = G_FILE_GET_IFACE (file);
5048 if (iface->unmount_mountable_with_operation_finish != NULL)
5049 return (* iface->unmount_mountable_with_operation_finish) (file, result, error);
5050 else
5051 return (* iface->unmount_mountable_finish) (file, result, error);
5055 * g_file_eject_mountable:
5056 * @file: input #GFile
5057 * @flags: flags affecting the operation
5058 * @cancellable: (nullable): optional #GCancellable object,
5059 * %NULL to ignore
5060 * @callback: (scope async) (nullable): a #GAsyncReadyCallback to call
5061 * when the request is satisfied, or %NULL
5062 * @user_data: (closure): the data to pass to callback function
5064 * Starts an asynchronous eject on a mountable.
5065 * When this operation has completed, @callback will be called with
5066 * @user_user data, and the operation can be finalized with
5067 * g_file_eject_mountable_finish().
5069 * If @cancellable is not %NULL, then the operation can be cancelled by
5070 * triggering the cancellable object from another thread. If the operation
5071 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
5073 * Deprecated: 2.22: Use g_file_eject_mountable_with_operation() instead.
5075 void
5076 g_file_eject_mountable (GFile *file,
5077 GMountUnmountFlags flags,
5078 GCancellable *cancellable,
5079 GAsyncReadyCallback callback,
5080 gpointer user_data)
5082 GFileIface *iface;
5084 g_return_if_fail (G_IS_FILE (file));
5086 iface = G_FILE_GET_IFACE (file);
5088 if (iface->eject_mountable == NULL)
5090 g_task_report_new_error (file, callback, user_data,
5091 g_file_eject_mountable_with_operation,
5092 G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
5093 _("Operation not supported"));
5094 return;
5097 (* iface->eject_mountable) (file,
5098 flags,
5099 cancellable,
5100 callback,
5101 user_data);
5105 * g_file_eject_mountable_finish:
5106 * @file: input #GFile
5107 * @result: a #GAsyncResult
5108 * @error: a #GError, or %NULL
5110 * Finishes an asynchronous eject operation started by
5111 * g_file_eject_mountable().
5113 * Returns: %TRUE if the @file was ejected successfully.
5114 * %FALSE otherwise.
5116 * Deprecated: 2.22: Use g_file_eject_mountable_with_operation_finish()
5117 * instead.
5119 gboolean
5120 g_file_eject_mountable_finish (GFile *file,
5121 GAsyncResult *result,
5122 GError **error)
5124 GFileIface *iface;
5126 g_return_val_if_fail (G_IS_FILE (file), FALSE);
5127 g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
5129 if (g_async_result_legacy_propagate_error (result, error))
5130 return FALSE;
5131 else if (g_async_result_is_tagged (result, g_file_eject_mountable_with_operation))
5132 return g_task_propagate_boolean (G_TASK (result), error);
5134 iface = G_FILE_GET_IFACE (file);
5135 return (* iface->eject_mountable_finish) (file, result, error);
5139 * g_file_eject_mountable_with_operation:
5140 * @file: input #GFile
5141 * @flags: flags affecting the operation
5142 * @mount_operation: (nullable): a #GMountOperation,
5143 * or %NULL to avoid user interaction
5144 * @cancellable: (nullable): optional #GCancellable object,
5145 * %NULL to ignore
5146 * @callback: (scope async) (nullable): a #GAsyncReadyCallback to call
5147 * when the request is satisfied, or %NULL
5148 * @user_data: (closure): the data to pass to callback function
5150 * Starts an asynchronous eject on a mountable.
5151 * When this operation has completed, @callback will be called with
5152 * @user_user data, and the operation can be finalized with
5153 * g_file_eject_mountable_with_operation_finish().
5155 * If @cancellable is not %NULL, then the operation can be cancelled by
5156 * triggering the cancellable object from another thread. If the operation
5157 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
5159 * Since: 2.22
5161 void
5162 g_file_eject_mountable_with_operation (GFile *file,
5163 GMountUnmountFlags flags,
5164 GMountOperation *mount_operation,
5165 GCancellable *cancellable,
5166 GAsyncReadyCallback callback,
5167 gpointer user_data)
5169 GFileIface *iface;
5171 g_return_if_fail (G_IS_FILE (file));
5173 iface = G_FILE_GET_IFACE (file);
5175 if (iface->eject_mountable == NULL && iface->eject_mountable_with_operation == NULL)
5177 g_task_report_new_error (file, callback, user_data,
5178 g_file_eject_mountable_with_operation,
5179 G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
5180 _("Operation not supported"));
5181 return;
5184 if (iface->eject_mountable_with_operation != NULL)
5185 (* iface->eject_mountable_with_operation) (file,
5186 flags,
5187 mount_operation,
5188 cancellable,
5189 callback,
5190 user_data);
5191 else
5192 (* iface->eject_mountable) (file,
5193 flags,
5194 cancellable,
5195 callback,
5196 user_data);
5200 * g_file_eject_mountable_with_operation_finish:
5201 * @file: input #GFile
5202 * @result: a #GAsyncResult
5203 * @error: a #GError, or %NULL
5205 * Finishes an asynchronous eject operation started by
5206 * g_file_eject_mountable_with_operation().
5208 * Returns: %TRUE if the @file was ejected successfully.
5209 * %FALSE otherwise.
5211 * Since: 2.22
5213 gboolean
5214 g_file_eject_mountable_with_operation_finish (GFile *file,
5215 GAsyncResult *result,
5216 GError **error)
5218 GFileIface *iface;
5220 g_return_val_if_fail (G_IS_FILE (file), FALSE);
5221 g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
5223 if (g_async_result_legacy_propagate_error (result, error))
5224 return FALSE;
5225 else if (g_async_result_is_tagged (result, g_file_eject_mountable_with_operation))
5226 return g_task_propagate_boolean (G_TASK (result), error);
5228 iface = G_FILE_GET_IFACE (file);
5229 if (iface->eject_mountable_with_operation_finish != NULL)
5230 return (* iface->eject_mountable_with_operation_finish) (file, result, error);
5231 else
5232 return (* iface->eject_mountable_finish) (file, result, error);
5236 * g_file_monitor_directory:
5237 * @file: input #GFile
5238 * @flags: a set of #GFileMonitorFlags
5239 * @cancellable: (nullable): optional #GCancellable object,
5240 * %NULL to ignore
5241 * @error: a #GError, or %NULL
5243 * Obtains a directory monitor for the given file.
5244 * This may fail if directory monitoring is not supported.
5246 * If @cancellable is not %NULL, then the operation can be cancelled by
5247 * triggering the cancellable object from another thread. If the operation
5248 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
5250 * It does not make sense for @flags to contain
5251 * %G_FILE_MONITOR_WATCH_HARD_LINKS, since hard links can not be made to
5252 * directories. It is not possible to monitor all the files in a
5253 * directory for changes made via hard links; if you want to do this then
5254 * you must register individual watches with g_file_monitor().
5256 * Virtual: monitor_dir
5257 * Returns: (transfer full): a #GFileMonitor for the given @file,
5258 * or %NULL on error.
5259 * Free the returned object with g_object_unref().
5261 GFileMonitor *
5262 g_file_monitor_directory (GFile *file,
5263 GFileMonitorFlags flags,
5264 GCancellable *cancellable,
5265 GError **error)
5267 GFileIface *iface;
5269 g_return_val_if_fail (G_IS_FILE (file), NULL);
5270 g_return_val_if_fail (~flags & G_FILE_MONITOR_WATCH_HARD_LINKS, NULL);
5272 if (g_cancellable_set_error_if_cancelled (cancellable, error))
5273 return NULL;
5275 iface = G_FILE_GET_IFACE (file);
5277 if (iface->monitor_dir == NULL)
5279 g_set_error_literal (error, G_IO_ERROR,
5280 G_IO_ERROR_NOT_SUPPORTED,
5281 _("Operation not supported"));
5282 return NULL;
5285 return (* iface->monitor_dir) (file, flags, cancellable, error);
5289 * g_file_monitor_file:
5290 * @file: input #GFile
5291 * @flags: a set of #GFileMonitorFlags
5292 * @cancellable: (nullable): optional #GCancellable object,
5293 * %NULL to ignore
5294 * @error: a #GError, or %NULL
5296 * Obtains a file monitor for the given file. If no file notification
5297 * mechanism exists, then regular polling of the file is used.
5299 * If @cancellable is not %NULL, then the operation can be cancelled by
5300 * triggering the cancellable object from another thread. If the operation
5301 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
5303 * If @flags contains %G_FILE_MONITOR_WATCH_HARD_LINKS then the monitor
5304 * will also attempt to report changes made to the file via another
5305 * filename (ie, a hard link). Without this flag, you can only rely on
5306 * changes made through the filename contained in @file to be
5307 * reported. Using this flag may result in an increase in resource
5308 * usage, and may not have any effect depending on the #GFileMonitor
5309 * backend and/or filesystem type.
5311 * Returns: (transfer full): a #GFileMonitor for the given @file,
5312 * or %NULL on error.
5313 * Free the returned object with g_object_unref().
5315 GFileMonitor *
5316 g_file_monitor_file (GFile *file,
5317 GFileMonitorFlags flags,
5318 GCancellable *cancellable,
5319 GError **error)
5321 GFileIface *iface;
5322 GFileMonitor *monitor;
5324 g_return_val_if_fail (G_IS_FILE (file), NULL);
5326 if (g_cancellable_set_error_if_cancelled (cancellable, error))
5327 return NULL;
5329 iface = G_FILE_GET_IFACE (file);
5331 monitor = NULL;
5333 if (iface->monitor_file)
5334 monitor = (* iface->monitor_file) (file, flags, cancellable, NULL);
5336 /* Fallback to polling */
5337 if (monitor == NULL)
5338 monitor = _g_poll_file_monitor_new (file);
5340 return monitor;
5344 * g_file_monitor:
5345 * @file: input #GFile
5346 * @flags: a set of #GFileMonitorFlags
5347 * @cancellable: (nullable): optional #GCancellable object,
5348 * %NULL to ignore
5349 * @error: a #GError, or %NULL
5351 * Obtains a file or directory monitor for the given file,
5352 * depending on the type of the file.
5354 * If @cancellable is not %NULL, then the operation can be cancelled by
5355 * triggering the cancellable object from another thread. If the operation
5356 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
5358 * Returns: (transfer full): a #GFileMonitor for the given @file,
5359 * or %NULL on error.
5360 * Free the returned object with g_object_unref().
5362 * Since: 2.18
5364 GFileMonitor *
5365 g_file_monitor (GFile *file,
5366 GFileMonitorFlags flags,
5367 GCancellable *cancellable,
5368 GError **error)
5370 if (g_file_query_file_type (file, 0, cancellable) == G_FILE_TYPE_DIRECTORY)
5371 return g_file_monitor_directory (file,
5372 flags & ~G_FILE_MONITOR_WATCH_HARD_LINKS,
5373 cancellable, error);
5374 else
5375 return g_file_monitor_file (file, flags, cancellable, error);
5378 /********************************************
5379 * Default implementation of async ops *
5380 ********************************************/
5382 typedef struct {
5383 char *attributes;
5384 GFileQueryInfoFlags flags;
5385 } QueryInfoAsyncData;
5387 static void
5388 query_info_data_free (QueryInfoAsyncData *data)
5390 g_free (data->attributes);
5391 g_free (data);
5394 static void
5395 query_info_async_thread (GTask *task,
5396 gpointer object,
5397 gpointer task_data,
5398 GCancellable *cancellable)
5400 QueryInfoAsyncData *data = task_data;
5401 GFileInfo *info;
5402 GError *error = NULL;
5404 info = g_file_query_info (G_FILE (object), data->attributes, data->flags, cancellable, &error);
5405 if (info)
5406 g_task_return_pointer (task, info, g_object_unref);
5407 else
5408 g_task_return_error (task, error);
5411 static void
5412 g_file_real_query_info_async (GFile *file,
5413 const char *attributes,
5414 GFileQueryInfoFlags flags,
5415 int io_priority,
5416 GCancellable *cancellable,
5417 GAsyncReadyCallback callback,
5418 gpointer user_data)
5420 GTask *task;
5421 QueryInfoAsyncData *data;
5423 data = g_new0 (QueryInfoAsyncData, 1);
5424 data->attributes = g_strdup (attributes);
5425 data->flags = flags;
5427 task = g_task_new (file, cancellable, callback, user_data);
5428 g_task_set_source_tag (task, g_file_real_query_info_async);
5429 g_task_set_task_data (task, data, (GDestroyNotify)query_info_data_free);
5430 g_task_set_priority (task, io_priority);
5431 g_task_run_in_thread (task, query_info_async_thread);
5432 g_object_unref (task);
5435 static GFileInfo *
5436 g_file_real_query_info_finish (GFile *file,
5437 GAsyncResult *res,
5438 GError **error)
5440 g_return_val_if_fail (g_task_is_valid (res, file), NULL);
5442 return g_task_propagate_pointer (G_TASK (res), error);
5445 static void
5446 query_filesystem_info_async_thread (GTask *task,
5447 gpointer object,
5448 gpointer task_data,
5449 GCancellable *cancellable)
5451 const char *attributes = task_data;
5452 GFileInfo *info;
5453 GError *error = NULL;
5455 info = g_file_query_filesystem_info (G_FILE (object), attributes, cancellable, &error);
5456 if (info)
5457 g_task_return_pointer (task, info, g_object_unref);
5458 else
5459 g_task_return_error (task, error);
5462 static void
5463 g_file_real_query_filesystem_info_async (GFile *file,
5464 const char *attributes,
5465 int io_priority,
5466 GCancellable *cancellable,
5467 GAsyncReadyCallback callback,
5468 gpointer user_data)
5470 GTask *task;
5472 task = g_task_new (file, cancellable, callback, user_data);
5473 g_task_set_source_tag (task, g_file_real_query_filesystem_info_async);
5474 g_task_set_task_data (task, g_strdup (attributes), g_free);
5475 g_task_set_priority (task, io_priority);
5476 g_task_run_in_thread (task, query_filesystem_info_async_thread);
5477 g_object_unref (task);
5480 static GFileInfo *
5481 g_file_real_query_filesystem_info_finish (GFile *file,
5482 GAsyncResult *res,
5483 GError **error)
5485 g_return_val_if_fail (g_task_is_valid (res, file), NULL);
5487 return g_task_propagate_pointer (G_TASK (res), error);
5490 static void
5491 enumerate_children_async_thread (GTask *task,
5492 gpointer object,
5493 gpointer task_data,
5494 GCancellable *cancellable)
5496 QueryInfoAsyncData *data = task_data;
5497 GFileEnumerator *enumerator;
5498 GError *error = NULL;
5500 enumerator = g_file_enumerate_children (G_FILE (object), data->attributes, data->flags, cancellable, &error);
5501 if (error)
5502 g_task_return_error (task, error);
5503 else
5504 g_task_return_pointer (task, enumerator, g_object_unref);
5507 static void
5508 g_file_real_enumerate_children_async (GFile *file,
5509 const char *attributes,
5510 GFileQueryInfoFlags flags,
5511 int io_priority,
5512 GCancellable *cancellable,
5513 GAsyncReadyCallback callback,
5514 gpointer user_data)
5516 GTask *task;
5517 QueryInfoAsyncData *data;
5519 data = g_new0 (QueryInfoAsyncData, 1);
5520 data->attributes = g_strdup (attributes);
5521 data->flags = flags;
5523 task = g_task_new (file, cancellable, callback, user_data);
5524 g_task_set_source_tag (task, g_file_real_enumerate_children_async);
5525 g_task_set_task_data (task, data, (GDestroyNotify)query_info_data_free);
5526 g_task_set_priority (task, io_priority);
5527 g_task_run_in_thread (task, enumerate_children_async_thread);
5528 g_object_unref (task);
5531 static GFileEnumerator *
5532 g_file_real_enumerate_children_finish (GFile *file,
5533 GAsyncResult *res,
5534 GError **error)
5536 g_return_val_if_fail (g_task_is_valid (res, file), NULL);
5538 return g_task_propagate_pointer (G_TASK (res), error);
5541 static void
5542 open_read_async_thread (GTask *task,
5543 gpointer object,
5544 gpointer task_data,
5545 GCancellable *cancellable)
5547 GFileInputStream *stream;
5548 GError *error = NULL;
5550 stream = g_file_read (G_FILE (object), cancellable, &error);
5551 if (stream)
5552 g_task_return_pointer (task, stream, g_object_unref);
5553 else
5554 g_task_return_error (task, error);
5557 static void
5558 g_file_real_read_async (GFile *file,
5559 int io_priority,
5560 GCancellable *cancellable,
5561 GAsyncReadyCallback callback,
5562 gpointer user_data)
5564 GTask *task;
5566 task = g_task_new (file, cancellable, callback, user_data);
5567 g_task_set_source_tag (task, g_file_real_read_async);
5568 g_task_set_priority (task, io_priority);
5569 g_task_run_in_thread (task, open_read_async_thread);
5570 g_object_unref (task);
5573 static GFileInputStream *
5574 g_file_real_read_finish (GFile *file,
5575 GAsyncResult *res,
5576 GError **error)
5578 g_return_val_if_fail (g_task_is_valid (res, file), NULL);
5580 return g_task_propagate_pointer (G_TASK (res), error);
5583 static void
5584 append_to_async_thread (GTask *task,
5585 gpointer source_object,
5586 gpointer task_data,
5587 GCancellable *cancellable)
5589 GFileCreateFlags *data = task_data;
5590 GFileOutputStream *stream;
5591 GError *error = NULL;
5593 stream = g_file_append_to (G_FILE (source_object), *data, cancellable, &error);
5594 if (stream)
5595 g_task_return_pointer (task, stream, g_object_unref);
5596 else
5597 g_task_return_error (task, error);
5600 static void
5601 g_file_real_append_to_async (GFile *file,
5602 GFileCreateFlags flags,
5603 int io_priority,
5604 GCancellable *cancellable,
5605 GAsyncReadyCallback callback,
5606 gpointer user_data)
5608 GFileCreateFlags *data;
5609 GTask *task;
5611 data = g_new0 (GFileCreateFlags, 1);
5612 *data = flags;
5614 task = g_task_new (file, cancellable, callback, user_data);
5615 g_task_set_source_tag (task, g_file_real_append_to_async);
5616 g_task_set_task_data (task, data, g_free);
5617 g_task_set_priority (task, io_priority);
5619 g_task_run_in_thread (task, append_to_async_thread);
5620 g_object_unref (task);
5623 static GFileOutputStream *
5624 g_file_real_append_to_finish (GFile *file,
5625 GAsyncResult *res,
5626 GError **error)
5628 g_return_val_if_fail (g_task_is_valid (res, file), NULL);
5630 return g_task_propagate_pointer (G_TASK (res), error);
5633 static void
5634 create_async_thread (GTask *task,
5635 gpointer source_object,
5636 gpointer task_data,
5637 GCancellable *cancellable)
5639 GFileCreateFlags *data = task_data;
5640 GFileOutputStream *stream;
5641 GError *error = NULL;
5643 stream = g_file_create (G_FILE (source_object), *data, cancellable, &error);
5644 if (stream)
5645 g_task_return_pointer (task, stream, g_object_unref);
5646 else
5647 g_task_return_error (task, error);
5650 static void
5651 g_file_real_create_async (GFile *file,
5652 GFileCreateFlags flags,
5653 int io_priority,
5654 GCancellable *cancellable,
5655 GAsyncReadyCallback callback,
5656 gpointer user_data)
5658 GFileCreateFlags *data;
5659 GTask *task;
5661 data = g_new0 (GFileCreateFlags, 1);
5662 *data = flags;
5664 task = g_task_new (file, cancellable, callback, user_data);
5665 g_task_set_source_tag (task, g_file_real_create_async);
5666 g_task_set_task_data (task, data, g_free);
5667 g_task_set_priority (task, io_priority);
5669 g_task_run_in_thread (task, create_async_thread);
5670 g_object_unref (task);
5673 static GFileOutputStream *
5674 g_file_real_create_finish (GFile *file,
5675 GAsyncResult *res,
5676 GError **error)
5678 g_return_val_if_fail (g_task_is_valid (res, file), NULL);
5680 return g_task_propagate_pointer (G_TASK (res), error);
5683 typedef struct {
5684 GFileOutputStream *stream;
5685 char *etag;
5686 gboolean make_backup;
5687 GFileCreateFlags flags;
5688 } ReplaceAsyncData;
5690 static void
5691 replace_async_data_free (ReplaceAsyncData *data)
5693 if (data->stream)
5694 g_object_unref (data->stream);
5695 g_free (data->etag);
5696 g_free (data);
5699 static void
5700 replace_async_thread (GTask *task,
5701 gpointer source_object,
5702 gpointer task_data,
5703 GCancellable *cancellable)
5705 GFileOutputStream *stream;
5706 ReplaceAsyncData *data = task_data;
5707 GError *error = NULL;
5709 stream = g_file_replace (G_FILE (source_object),
5710 data->etag,
5711 data->make_backup,
5712 data->flags,
5713 cancellable,
5714 &error);
5716 if (stream)
5717 g_task_return_pointer (task, stream, g_object_unref);
5718 else
5719 g_task_return_error (task, error);
5722 static void
5723 g_file_real_replace_async (GFile *file,
5724 const char *etag,
5725 gboolean make_backup,
5726 GFileCreateFlags flags,
5727 int io_priority,
5728 GCancellable *cancellable,
5729 GAsyncReadyCallback callback,
5730 gpointer user_data)
5732 GTask *task;
5733 ReplaceAsyncData *data;
5735 data = g_new0 (ReplaceAsyncData, 1);
5736 data->etag = g_strdup (etag);
5737 data->make_backup = make_backup;
5738 data->flags = flags;
5740 task = g_task_new (file, cancellable, callback, user_data);
5741 g_task_set_source_tag (task, g_file_real_replace_async);
5742 g_task_set_task_data (task, data, (GDestroyNotify)replace_async_data_free);
5743 g_task_set_priority (task, io_priority);
5745 g_task_run_in_thread (task, replace_async_thread);
5746 g_object_unref (task);
5749 static GFileOutputStream *
5750 g_file_real_replace_finish (GFile *file,
5751 GAsyncResult *res,
5752 GError **error)
5754 g_return_val_if_fail (g_task_is_valid (res, file), NULL);
5756 return g_task_propagate_pointer (G_TASK (res), error);
5759 static void
5760 delete_async_thread (GTask *task,
5761 gpointer object,
5762 gpointer task_data,
5763 GCancellable *cancellable)
5765 GError *error = NULL;
5767 if (g_file_delete (G_FILE (object), cancellable, &error))
5768 g_task_return_boolean (task, TRUE);
5769 else
5770 g_task_return_error (task, error);
5773 static void
5774 g_file_real_delete_async (GFile *file,
5775 int io_priority,
5776 GCancellable *cancellable,
5777 GAsyncReadyCallback callback,
5778 gpointer user_data)
5780 GTask *task;
5782 task = g_task_new (file, cancellable, callback, user_data);
5783 g_task_set_source_tag (task, g_file_real_delete_async);
5784 g_task_set_priority (task, io_priority);
5785 g_task_run_in_thread (task, delete_async_thread);
5786 g_object_unref (task);
5789 static gboolean
5790 g_file_real_delete_finish (GFile *file,
5791 GAsyncResult *res,
5792 GError **error)
5794 g_return_val_if_fail (g_task_is_valid (res, file), FALSE);
5796 return g_task_propagate_boolean (G_TASK (res), error);
5799 static void
5800 trash_async_thread (GTask *task,
5801 gpointer object,
5802 gpointer task_data,
5803 GCancellable *cancellable)
5805 GError *error = NULL;
5807 if (g_file_trash (G_FILE (object), cancellable, &error))
5808 g_task_return_boolean (task, TRUE);
5809 else
5810 g_task_return_error (task, error);
5813 static void
5814 g_file_real_trash_async (GFile *file,
5815 int io_priority,
5816 GCancellable *cancellable,
5817 GAsyncReadyCallback callback,
5818 gpointer user_data)
5820 GTask *task;
5822 task = g_task_new (file, cancellable, callback, user_data);
5823 g_task_set_source_tag (task, g_file_real_trash_async);
5824 g_task_set_priority (task, io_priority);
5825 g_task_run_in_thread (task, trash_async_thread);
5826 g_object_unref (task);
5829 static gboolean
5830 g_file_real_trash_finish (GFile *file,
5831 GAsyncResult *res,
5832 GError **error)
5834 g_return_val_if_fail (g_task_is_valid (res, file), FALSE);
5836 return g_task_propagate_boolean (G_TASK (res), error);
5839 static void
5840 make_directory_async_thread (GTask *task,
5841 gpointer object,
5842 gpointer task_data,
5843 GCancellable *cancellable)
5845 GError *error = NULL;
5847 if (g_file_make_directory (G_FILE (object), cancellable, &error))
5848 g_task_return_boolean (task, TRUE);
5849 else
5850 g_task_return_error (task, error);
5853 static void
5854 g_file_real_make_directory_async (GFile *file,
5855 int io_priority,
5856 GCancellable *cancellable,
5857 GAsyncReadyCallback callback,
5858 gpointer user_data)
5860 GTask *task;
5862 task = g_task_new (file, cancellable, callback, user_data);
5863 g_task_set_source_tag (task, g_file_real_make_directory_async);
5864 g_task_set_priority (task, io_priority);
5865 g_task_run_in_thread (task, make_directory_async_thread);
5866 g_object_unref (task);
5869 static gboolean
5870 g_file_real_make_directory_finish (GFile *file,
5871 GAsyncResult *res,
5872 GError **error)
5874 g_return_val_if_fail (g_task_is_valid (res, file), FALSE);
5876 return g_task_propagate_boolean (G_TASK (res), error);
5879 static void
5880 open_readwrite_async_thread (GTask *task,
5881 gpointer object,
5882 gpointer task_data,
5883 GCancellable *cancellable)
5885 GFileIOStream *stream;
5886 GError *error = NULL;
5888 stream = g_file_open_readwrite (G_FILE (object), cancellable, &error);
5890 if (stream == NULL)
5891 g_task_return_error (task, error);
5892 else
5893 g_task_return_pointer (task, stream, g_object_unref);
5896 static void
5897 g_file_real_open_readwrite_async (GFile *file,
5898 int io_priority,
5899 GCancellable *cancellable,
5900 GAsyncReadyCallback callback,
5901 gpointer user_data)
5903 GTask *task;
5905 task = g_task_new (file, cancellable, callback, user_data);
5906 g_task_set_source_tag (task, g_file_real_open_readwrite_async);
5907 g_task_set_priority (task, io_priority);
5909 g_task_run_in_thread (task, open_readwrite_async_thread);
5910 g_object_unref (task);
5913 static GFileIOStream *
5914 g_file_real_open_readwrite_finish (GFile *file,
5915 GAsyncResult *res,
5916 GError **error)
5918 g_return_val_if_fail (g_task_is_valid (res, file), NULL);
5920 return g_task_propagate_pointer (G_TASK (res), error);
5923 static void
5924 create_readwrite_async_thread (GTask *task,
5925 gpointer object,
5926 gpointer task_data,
5927 GCancellable *cancellable)
5929 GFileCreateFlags *data = task_data;
5930 GFileIOStream *stream;
5931 GError *error = NULL;
5933 stream = g_file_create_readwrite (G_FILE (object), *data, cancellable, &error);
5935 if (stream == NULL)
5936 g_task_return_error (task, error);
5937 else
5938 g_task_return_pointer (task, stream, g_object_unref);
5941 static void
5942 g_file_real_create_readwrite_async (GFile *file,
5943 GFileCreateFlags flags,
5944 int io_priority,
5945 GCancellable *cancellable,
5946 GAsyncReadyCallback callback,
5947 gpointer user_data)
5949 GFileCreateFlags *data;
5950 GTask *task;
5952 data = g_new0 (GFileCreateFlags, 1);
5953 *data = flags;
5955 task = g_task_new (file, cancellable, callback, user_data);
5956 g_task_set_source_tag (task, g_file_real_create_readwrite_async);
5957 g_task_set_task_data (task, data, g_free);
5958 g_task_set_priority (task, io_priority);
5960 g_task_run_in_thread (task, create_readwrite_async_thread);
5961 g_object_unref (task);
5964 static GFileIOStream *
5965 g_file_real_create_readwrite_finish (GFile *file,
5966 GAsyncResult *res,
5967 GError **error)
5969 g_return_val_if_fail (g_task_is_valid (res, file), NULL);
5971 return g_task_propagate_pointer (G_TASK (res), error);
5974 typedef struct {
5975 char *etag;
5976 gboolean make_backup;
5977 GFileCreateFlags flags;
5978 } ReplaceRWAsyncData;
5980 static void
5981 replace_rw_async_data_free (ReplaceRWAsyncData *data)
5983 g_free (data->etag);
5984 g_free (data);
5987 static void
5988 replace_readwrite_async_thread (GTask *task,
5989 gpointer object,
5990 gpointer task_data,
5991 GCancellable *cancellable)
5993 GFileIOStream *stream;
5994 GError *error = NULL;
5995 ReplaceRWAsyncData *data = task_data;
5997 stream = g_file_replace_readwrite (G_FILE (object),
5998 data->etag,
5999 data->make_backup,
6000 data->flags,
6001 cancellable,
6002 &error);
6004 if (stream == NULL)
6005 g_task_return_error (task, error);
6006 else
6007 g_task_return_pointer (task, stream, g_object_unref);
6010 static void
6011 g_file_real_replace_readwrite_async (GFile *file,
6012 const char *etag,
6013 gboolean make_backup,
6014 GFileCreateFlags flags,
6015 int io_priority,
6016 GCancellable *cancellable,
6017 GAsyncReadyCallback callback,
6018 gpointer user_data)
6020 GTask *task;
6021 ReplaceRWAsyncData *data;
6023 data = g_new0 (ReplaceRWAsyncData, 1);
6024 data->etag = g_strdup (etag);
6025 data->make_backup = make_backup;
6026 data->flags = flags;
6028 task = g_task_new (file, cancellable, callback, user_data);
6029 g_task_set_source_tag (task, g_file_real_replace_readwrite_async);
6030 g_task_set_task_data (task, data, (GDestroyNotify)replace_rw_async_data_free);
6031 g_task_set_priority (task, io_priority);
6033 g_task_run_in_thread (task, replace_readwrite_async_thread);
6034 g_object_unref (task);
6037 static GFileIOStream *
6038 g_file_real_replace_readwrite_finish (GFile *file,
6039 GAsyncResult *res,
6040 GError **error)
6042 g_return_val_if_fail (g_task_is_valid (res, file), NULL);
6044 return g_task_propagate_pointer (G_TASK (res), error);
6047 static void
6048 set_display_name_async_thread (GTask *task,
6049 gpointer object,
6050 gpointer task_data,
6051 GCancellable *cancellable)
6053 GError *error = NULL;
6054 char *name = task_data;
6055 GFile *file;
6057 file = g_file_set_display_name (G_FILE (object), name, cancellable, &error);
6059 if (file == NULL)
6060 g_task_return_error (task, error);
6061 else
6062 g_task_return_pointer (task, file, g_object_unref);
6065 static void
6066 g_file_real_set_display_name_async (GFile *file,
6067 const char *display_name,
6068 int io_priority,
6069 GCancellable *cancellable,
6070 GAsyncReadyCallback callback,
6071 gpointer user_data)
6073 GTask *task;
6075 task = g_task_new (file, cancellable, callback, user_data);
6076 g_task_set_source_tag (task, g_file_real_set_display_name_async);
6077 g_task_set_task_data (task, g_strdup (display_name), g_free);
6078 g_task_set_priority (task, io_priority);
6080 g_task_run_in_thread (task, set_display_name_async_thread);
6081 g_object_unref (task);
6084 static GFile *
6085 g_file_real_set_display_name_finish (GFile *file,
6086 GAsyncResult *res,
6087 GError **error)
6089 g_return_val_if_fail (g_task_is_valid (res, file), NULL);
6091 return g_task_propagate_pointer (G_TASK (res), error);
6094 typedef struct {
6095 GFileQueryInfoFlags flags;
6096 GFileInfo *info;
6097 gboolean res;
6098 GError *error;
6099 } SetInfoAsyncData;
6101 static void
6102 set_info_data_free (SetInfoAsyncData *data)
6104 if (data->info)
6105 g_object_unref (data->info);
6106 if (data->error)
6107 g_error_free (data->error);
6108 g_free (data);
6111 static void
6112 set_info_async_thread (GTask *task,
6113 gpointer object,
6114 gpointer task_data,
6115 GCancellable *cancellable)
6117 SetInfoAsyncData *data = task_data;
6119 data->error = NULL;
6120 data->res = g_file_set_attributes_from_info (G_FILE (object),
6121 data->info,
6122 data->flags,
6123 cancellable,
6124 &data->error);
6127 static void
6128 g_file_real_set_attributes_async (GFile *file,
6129 GFileInfo *info,
6130 GFileQueryInfoFlags flags,
6131 int io_priority,
6132 GCancellable *cancellable,
6133 GAsyncReadyCallback callback,
6134 gpointer user_data)
6136 GTask *task;
6137 SetInfoAsyncData *data;
6139 data = g_new0 (SetInfoAsyncData, 1);
6140 data->info = g_file_info_dup (info);
6141 data->flags = flags;
6143 task = g_task_new (file, cancellable, callback, user_data);
6144 g_task_set_source_tag (task, g_file_real_set_attributes_async);
6145 g_task_set_task_data (task, data, (GDestroyNotify)set_info_data_free);
6146 g_task_set_priority (task, io_priority);
6148 g_task_run_in_thread (task, set_info_async_thread);
6149 g_object_unref (task);
6152 static gboolean
6153 g_file_real_set_attributes_finish (GFile *file,
6154 GAsyncResult *res,
6155 GFileInfo **info,
6156 GError **error)
6158 SetInfoAsyncData *data;
6160 g_return_val_if_fail (g_task_is_valid (res, file), FALSE);
6162 data = g_task_get_task_data (G_TASK (res));
6164 if (info)
6165 *info = g_object_ref (data->info);
6167 if (error != NULL && data->error)
6168 *error = g_error_copy (data->error);
6170 return data->res;
6173 static void
6174 find_enclosing_mount_async_thread (GTask *task,
6175 gpointer object,
6176 gpointer task_data,
6177 GCancellable *cancellable)
6179 GError *error = NULL;
6180 GMount *mount;
6182 mount = g_file_find_enclosing_mount (G_FILE (object), cancellable, &error);
6184 if (mount == NULL)
6185 g_task_return_error (task, error);
6186 else
6187 g_task_return_pointer (task, mount, g_object_unref);
6190 static void
6191 g_file_real_find_enclosing_mount_async (GFile *file,
6192 int io_priority,
6193 GCancellable *cancellable,
6194 GAsyncReadyCallback callback,
6195 gpointer user_data)
6197 GTask *task;
6199 task = g_task_new (file, cancellable, callback, user_data);
6200 g_task_set_source_tag (task, g_file_real_find_enclosing_mount_async);
6201 g_task_set_priority (task, io_priority);
6203 g_task_run_in_thread (task, find_enclosing_mount_async_thread);
6204 g_object_unref (task);
6207 static GMount *
6208 g_file_real_find_enclosing_mount_finish (GFile *file,
6209 GAsyncResult *res,
6210 GError **error)
6212 g_return_val_if_fail (g_task_is_valid (res, file), NULL);
6214 return g_task_propagate_pointer (G_TASK (res), error);
6218 typedef struct {
6219 GFile *source;
6220 GFile *destination;
6221 GFileCopyFlags flags;
6222 GFileProgressCallback progress_cb;
6223 gpointer progress_cb_data;
6224 } CopyAsyncData;
6226 static void
6227 copy_async_data_free (CopyAsyncData *data)
6229 g_object_unref (data->source);
6230 g_object_unref (data->destination);
6231 g_slice_free (CopyAsyncData, data);
6234 typedef struct {
6235 CopyAsyncData *data;
6236 goffset current_num_bytes;
6237 goffset total_num_bytes;
6238 } ProgressData;
6240 static gboolean
6241 copy_async_progress_in_main (gpointer user_data)
6243 ProgressData *progress = user_data;
6244 CopyAsyncData *data = progress->data;
6246 data->progress_cb (progress->current_num_bytes,
6247 progress->total_num_bytes,
6248 data->progress_cb_data);
6250 return FALSE;
6253 static void
6254 copy_async_progress_callback (goffset current_num_bytes,
6255 goffset total_num_bytes,
6256 gpointer user_data)
6258 GTask *task = user_data;
6259 CopyAsyncData *data = g_task_get_task_data (task);
6260 ProgressData *progress;
6262 progress = g_new (ProgressData, 1);
6263 progress->data = data;
6264 progress->current_num_bytes = current_num_bytes;
6265 progress->total_num_bytes = total_num_bytes;
6267 g_main_context_invoke_full (g_task_get_context (task),
6268 g_task_get_priority (task),
6269 copy_async_progress_in_main,
6270 progress,
6271 g_free);
6274 static void
6275 copy_async_thread (GTask *task,
6276 gpointer source,
6277 gpointer task_data,
6278 GCancellable *cancellable)
6280 CopyAsyncData *data = task_data;
6281 gboolean result;
6282 GError *error = NULL;
6284 result = g_file_copy (data->source,
6285 data->destination,
6286 data->flags,
6287 cancellable,
6288 (data->progress_cb != NULL) ? copy_async_progress_callback : NULL,
6289 task,
6290 &error);
6291 if (result)
6292 g_task_return_boolean (task, TRUE);
6293 else
6294 g_task_return_error (task, error);
6297 static void
6298 g_file_real_copy_async (GFile *source,
6299 GFile *destination,
6300 GFileCopyFlags flags,
6301 int io_priority,
6302 GCancellable *cancellable,
6303 GFileProgressCallback progress_callback,
6304 gpointer progress_callback_data,
6305 GAsyncReadyCallback callback,
6306 gpointer user_data)
6308 GTask *task;
6309 CopyAsyncData *data;
6311 data = g_slice_new (CopyAsyncData);
6312 data->source = g_object_ref (source);
6313 data->destination = g_object_ref (destination);
6314 data->flags = flags;
6315 data->progress_cb = progress_callback;
6316 data->progress_cb_data = progress_callback_data;
6318 task = g_task_new (source, cancellable, callback, user_data);
6319 g_task_set_source_tag (task, g_file_real_copy_async);
6320 g_task_set_task_data (task, data, (GDestroyNotify)copy_async_data_free);
6321 g_task_set_priority (task, io_priority);
6322 g_task_run_in_thread (task, copy_async_thread);
6323 g_object_unref (task);
6326 static gboolean
6327 g_file_real_copy_finish (GFile *file,
6328 GAsyncResult *res,
6329 GError **error)
6331 g_return_val_if_fail (g_task_is_valid (res, file), FALSE);
6333 return g_task_propagate_boolean (G_TASK (res), error);
6337 /********************************************
6338 * Default VFS operations *
6339 ********************************************/
6342 * g_file_new_for_path:
6343 * @path: (type filename): a string containing a relative or absolute path.
6344 * The string must be encoded in the glib filename encoding.
6346 * Constructs a #GFile for a given path. This operation never
6347 * fails, but the returned object might not support any I/O
6348 * operation if @path is malformed.
6350 * Returns: (transfer full): a new #GFile for the given @path.
6351 * Free the returned object with g_object_unref().
6353 GFile *
6354 g_file_new_for_path (const char *path)
6356 g_return_val_if_fail (path != NULL, NULL);
6358 return g_vfs_get_file_for_path (g_vfs_get_default (), path);
6362 * g_file_new_for_uri:
6363 * @uri: a UTF-8 string containing a URI
6365 * Constructs a #GFile for a given URI. This operation never
6366 * fails, but the returned object might not support any I/O
6367 * operation if @uri is malformed or if the uri type is
6368 * not supported.
6370 * Returns: (transfer full): a new #GFile for the given @uri.
6371 * Free the returned object with g_object_unref().
6373 GFile *
6374 g_file_new_for_uri (const char *uri)
6376 g_return_val_if_fail (uri != NULL, NULL);
6378 return g_vfs_get_file_for_uri (g_vfs_get_default (), uri);
6382 * g_file_new_tmp:
6383 * @tmpl: (type filename) (nullable): Template for the file
6384 * name, as in g_file_open_tmp(), or %NULL for a default template
6385 * @iostream: (out): on return, a #GFileIOStream for the created file
6386 * @error: a #GError, or %NULL
6388 * Opens a file in the preferred directory for temporary files (as
6389 * returned by g_get_tmp_dir()) and returns a #GFile and
6390 * #GFileIOStream pointing to it.
6392 * @tmpl should be a string in the GLib file name encoding
6393 * containing a sequence of six 'X' characters, and containing no
6394 * directory components. If it is %NULL, a default template is used.
6396 * Unlike the other #GFile constructors, this will return %NULL if
6397 * a temporary file could not be created.
6399 * Returns: (transfer full): a new #GFile.
6400 * Free the returned object with g_object_unref().
6402 * Since: 2.32
6404 GFile *
6405 g_file_new_tmp (const char *tmpl,
6406 GFileIOStream **iostream,
6407 GError **error)
6409 gint fd;
6410 gchar *path;
6411 GFile *file;
6412 GFileOutputStream *output;
6414 g_return_val_if_fail (iostream != NULL, NULL);
6416 fd = g_file_open_tmp (tmpl, &path, error);
6417 if (fd == -1)
6418 return NULL;
6420 file = g_file_new_for_path (path);
6422 output = _g_local_file_output_stream_new (fd);
6423 *iostream = _g_local_file_io_stream_new (G_LOCAL_FILE_OUTPUT_STREAM (output));
6425 g_object_unref (output);
6426 g_free (path);
6428 return file;
6432 * g_file_parse_name:
6433 * @parse_name: a file name or path to be parsed
6435 * Constructs a #GFile with the given @parse_name (i.e. something
6436 * given by g_file_get_parse_name()). This operation never fails,
6437 * but the returned object might not support any I/O operation if
6438 * the @parse_name cannot be parsed.
6440 * Returns: (transfer full): a new #GFile.
6442 GFile *
6443 g_file_parse_name (const char *parse_name)
6445 g_return_val_if_fail (parse_name != NULL, NULL);
6447 return g_vfs_parse_name (g_vfs_get_default (), parse_name);
6450 static gboolean
6451 is_valid_scheme_character (char c)
6453 return g_ascii_isalnum (c) || c == '+' || c == '-' || c == '.';
6456 /* Following RFC 2396, valid schemes are built like:
6457 * scheme = alpha *( alpha | digit | "+" | "-" | "." )
6459 static gboolean
6460 has_valid_scheme (const char *uri)
6462 const char *p;
6464 p = uri;
6466 if (!g_ascii_isalpha (*p))
6467 return FALSE;
6469 do {
6470 p++;
6471 } while (is_valid_scheme_character (*p));
6473 return *p == ':';
6476 static GFile *
6477 new_for_cmdline_arg (const gchar *arg,
6478 const gchar *cwd)
6480 GFile *file;
6481 char *filename;
6483 if (g_path_is_absolute (arg))
6484 return g_file_new_for_path (arg);
6486 if (has_valid_scheme (arg))
6487 return g_file_new_for_uri (arg);
6489 if (cwd == NULL)
6491 char *current_dir;
6493 current_dir = g_get_current_dir ();
6494 filename = g_build_filename (current_dir, arg, NULL);
6495 g_free (current_dir);
6497 else
6498 filename = g_build_filename (cwd, arg, NULL);
6500 file = g_file_new_for_path (filename);
6501 g_free (filename);
6503 return file;
6507 * g_file_new_for_commandline_arg:
6508 * @arg: a command line string
6510 * Creates a #GFile with the given argument from the command line.
6511 * The value of @arg can be either a URI, an absolute path or a
6512 * relative path resolved relative to the current working directory.
6513 * This operation never fails, but the returned object might not
6514 * support any I/O operation if @arg points to a malformed path.
6516 * Note that on Windows, this function expects its argument to be in
6517 * UTF-8 -- not the system code page. This means that you
6518 * should not use this function with string from argv as it is passed
6519 * to main(). g_win32_get_command_line() will return a UTF-8 version of
6520 * the commandline. #GApplication also uses UTF-8 but
6521 * g_application_command_line_create_file_for_arg() may be more useful
6522 * for you there. It is also always possible to use this function with
6523 * #GOptionContext arguments of type %G_OPTION_ARG_FILENAME.
6525 * Returns: (transfer full): a new #GFile.
6526 * Free the returned object with g_object_unref().
6528 GFile *
6529 g_file_new_for_commandline_arg (const char *arg)
6531 g_return_val_if_fail (arg != NULL, NULL);
6533 return new_for_cmdline_arg (arg, NULL);
6537 * g_file_new_for_commandline_arg_and_cwd:
6538 * @arg: a command line string
6539 * @cwd: (type filename): the current working directory of the commandline
6541 * Creates a #GFile with the given argument from the command line.
6543 * This function is similar to g_file_new_for_commandline_arg() except
6544 * that it allows for passing the current working directory as an
6545 * argument instead of using the current working directory of the
6546 * process.
6548 * This is useful if the commandline argument was given in a context
6549 * other than the invocation of the current process.
6551 * See also g_application_command_line_create_file_for_arg().
6553 * Returns: (transfer full): a new #GFile
6555 * Since: 2.36
6557 GFile *
6558 g_file_new_for_commandline_arg_and_cwd (const gchar *arg,
6559 const gchar *cwd)
6561 g_return_val_if_fail (arg != NULL, NULL);
6562 g_return_val_if_fail (cwd != NULL, NULL);
6564 return new_for_cmdline_arg (arg, cwd);
6568 * g_file_mount_enclosing_volume:
6569 * @location: input #GFile
6570 * @flags: flags affecting the operation
6571 * @mount_operation: (nullable): a #GMountOperation
6572 * or %NULL to avoid user interaction
6573 * @cancellable: (nullable): optional #GCancellable object,
6574 * %NULL to ignore
6575 * @callback: (nullable): a #GAsyncReadyCallback to call
6576 * when the request is satisfied, or %NULL
6577 * @user_data: the data to pass to callback function
6579 * Starts a @mount_operation, mounting the volume that contains
6580 * the file @location.
6582 * When this operation has completed, @callback will be called with
6583 * @user_user data, and the operation can be finalized with
6584 * g_file_mount_enclosing_volume_finish().
6586 * If @cancellable is not %NULL, then the operation can be cancelled by
6587 * triggering the cancellable object from another thread. If the operation
6588 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
6590 void
6591 g_file_mount_enclosing_volume (GFile *location,
6592 GMountMountFlags flags,
6593 GMountOperation *mount_operation,
6594 GCancellable *cancellable,
6595 GAsyncReadyCallback callback,
6596 gpointer user_data)
6598 GFileIface *iface;
6600 g_return_if_fail (G_IS_FILE (location));
6602 iface = G_FILE_GET_IFACE (location);
6604 if (iface->mount_enclosing_volume == NULL)
6606 g_task_report_new_error (location, callback, user_data,
6607 g_file_mount_enclosing_volume,
6608 G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
6609 _("volume doesn’t implement mount"));
6610 return;
6613 (* iface->mount_enclosing_volume) (location, flags, mount_operation, cancellable, callback, user_data);
6618 * g_file_mount_enclosing_volume_finish:
6619 * @location: input #GFile
6620 * @result: a #GAsyncResult
6621 * @error: a #GError, or %NULL
6623 * Finishes a mount operation started by g_file_mount_enclosing_volume().
6625 * Returns: %TRUE if successful. If an error has occurred,
6626 * this function will return %FALSE and set @error
6627 * appropriately if present.
6629 gboolean
6630 g_file_mount_enclosing_volume_finish (GFile *location,
6631 GAsyncResult *result,
6632 GError **error)
6634 GFileIface *iface;
6636 g_return_val_if_fail (G_IS_FILE (location), FALSE);
6637 g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
6639 if (g_async_result_legacy_propagate_error (result, error))
6640 return FALSE;
6641 else if (g_async_result_is_tagged (result, g_file_mount_enclosing_volume))
6642 return g_task_propagate_boolean (G_TASK (result), error);
6644 iface = G_FILE_GET_IFACE (location);
6646 return (* iface->mount_enclosing_volume_finish) (location, result, error);
6649 /********************************************
6650 * Utility functions *
6651 ********************************************/
6654 * g_file_query_default_handler:
6655 * @file: a #GFile to open
6656 * @cancellable: optional #GCancellable object, %NULL to ignore
6657 * @error: a #GError, or %NULL
6659 * Returns the #GAppInfo that is registered as the default
6660 * application to handle the file specified by @file.
6662 * If @cancellable is not %NULL, then the operation can be cancelled by
6663 * triggering the cancellable object from another thread. If the operation
6664 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
6666 * Returns: (transfer full): a #GAppInfo if the handle was found,
6667 * %NULL if there were errors.
6668 * When you are done with it, release it with g_object_unref()
6670 GAppInfo *
6671 g_file_query_default_handler (GFile *file,
6672 GCancellable *cancellable,
6673 GError **error)
6675 char *uri_scheme;
6676 const char *content_type;
6677 GAppInfo *appinfo;
6678 GFileInfo *info;
6679 char *path;
6681 uri_scheme = g_file_get_uri_scheme (file);
6682 if (uri_scheme && uri_scheme[0] != '\0')
6684 appinfo = g_app_info_get_default_for_uri_scheme (uri_scheme);
6685 g_free (uri_scheme);
6687 if (appinfo != NULL)
6688 return appinfo;
6691 info = g_file_query_info (file,
6692 G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE,
6694 cancellable,
6695 error);
6696 if (info == NULL)
6697 return NULL;
6699 appinfo = NULL;
6701 content_type = g_file_info_get_content_type (info);
6702 if (content_type)
6704 /* Don't use is_native(), as we want to support fuse paths if available */
6705 path = g_file_get_path (file);
6706 appinfo = g_app_info_get_default_for_type (content_type,
6707 path == NULL);
6708 g_free (path);
6711 g_object_unref (info);
6713 if (appinfo != NULL)
6714 return appinfo;
6716 g_set_error_literal (error, G_IO_ERROR,
6717 G_IO_ERROR_NOT_SUPPORTED,
6718 _("No application is registered as handling this file"));
6719 return NULL;
6722 #define GET_CONTENT_BLOCK_SIZE 8192
6725 * g_file_load_contents:
6726 * @file: input #GFile
6727 * @cancellable: optional #GCancellable object, %NULL to ignore
6728 * @contents: (out) (transfer full) (element-type guint8) (array length=length): a location to place the contents of the file
6729 * @length: (out) (optional): a location to place the length of the contents of the file,
6730 * or %NULL if the length is not needed
6731 * @etag_out: (out) (optional): a location to place the current entity tag for the file,
6732 * or %NULL if the entity tag is not needed
6733 * @error: a #GError, or %NULL
6735 * Loads the content of the file into memory. The data is always
6736 * zero-terminated, but this is not included in the resultant @length.
6737 * The returned @content should be freed with g_free() when no longer
6738 * needed.
6740 * If @cancellable is not %NULL, then the operation can be cancelled by
6741 * triggering the cancellable object from another thread. If the operation
6742 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
6744 * Returns: %TRUE if the @file's contents were successfully loaded.
6745 * %FALSE if there were errors.
6747 gboolean
6748 g_file_load_contents (GFile *file,
6749 GCancellable *cancellable,
6750 char **contents,
6751 gsize *length,
6752 char **etag_out,
6753 GError **error)
6755 GFileInputStream *in;
6756 GByteArray *content;
6757 gsize pos;
6758 gssize res;
6759 GFileInfo *info;
6761 g_return_val_if_fail (G_IS_FILE (file), FALSE);
6762 g_return_val_if_fail (contents != NULL, FALSE);
6764 in = g_file_read (file, cancellable, error);
6765 if (in == NULL)
6766 return FALSE;
6768 content = g_byte_array_new ();
6769 pos = 0;
6771 g_byte_array_set_size (content, pos + GET_CONTENT_BLOCK_SIZE + 1);
6772 while ((res = g_input_stream_read (G_INPUT_STREAM (in),
6773 content->data + pos,
6774 GET_CONTENT_BLOCK_SIZE,
6775 cancellable, error)) > 0)
6777 pos += res;
6778 g_byte_array_set_size (content, pos + GET_CONTENT_BLOCK_SIZE + 1);
6781 if (etag_out)
6783 *etag_out = NULL;
6785 info = g_file_input_stream_query_info (in,
6786 G_FILE_ATTRIBUTE_ETAG_VALUE,
6787 cancellable,
6788 NULL);
6789 if (info)
6791 *etag_out = g_strdup (g_file_info_get_etag (info));
6792 g_object_unref (info);
6796 /* Ignore errors on close */
6797 g_input_stream_close (G_INPUT_STREAM (in), cancellable, NULL);
6798 g_object_unref (in);
6800 if (res < 0)
6802 /* error is set already */
6803 g_byte_array_free (content, TRUE);
6804 return FALSE;
6807 if (length)
6808 *length = pos;
6810 /* Zero terminate (we got an extra byte allocated for this */
6811 content->data[pos] = 0;
6813 *contents = (char *)g_byte_array_free (content, FALSE);
6815 return TRUE;
6818 typedef struct {
6819 GTask *task;
6820 GFileReadMoreCallback read_more_callback;
6821 GByteArray *content;
6822 gsize pos;
6823 char *etag;
6824 } LoadContentsData;
6827 static void
6828 load_contents_data_free (LoadContentsData *data)
6830 if (data->content)
6831 g_byte_array_free (data->content, TRUE);
6832 g_free (data->etag);
6833 g_free (data);
6836 static void
6837 load_contents_close_callback (GObject *obj,
6838 GAsyncResult *close_res,
6839 gpointer user_data)
6841 GInputStream *stream = G_INPUT_STREAM (obj);
6842 LoadContentsData *data = user_data;
6844 /* Ignore errors here, we're only reading anyway */
6845 g_input_stream_close_finish (stream, close_res, NULL);
6846 g_object_unref (stream);
6848 g_task_return_boolean (data->task, TRUE);
6849 g_object_unref (data->task);
6852 static void
6853 load_contents_fstat_callback (GObject *obj,
6854 GAsyncResult *stat_res,
6855 gpointer user_data)
6857 GInputStream *stream = G_INPUT_STREAM (obj);
6858 LoadContentsData *data = user_data;
6859 GFileInfo *info;
6861 info = g_file_input_stream_query_info_finish (G_FILE_INPUT_STREAM (stream),
6862 stat_res, NULL);
6863 if (info)
6865 data->etag = g_strdup (g_file_info_get_etag (info));
6866 g_object_unref (info);
6869 g_input_stream_close_async (stream, 0,
6870 g_task_get_cancellable (data->task),
6871 load_contents_close_callback, data);
6874 static void
6875 load_contents_read_callback (GObject *obj,
6876 GAsyncResult *read_res,
6877 gpointer user_data)
6879 GInputStream *stream = G_INPUT_STREAM (obj);
6880 LoadContentsData *data = user_data;
6881 GError *error = NULL;
6882 gssize read_size;
6884 read_size = g_input_stream_read_finish (stream, read_res, &error);
6886 if (read_size < 0)
6888 g_task_return_error (data->task, error);
6889 g_object_unref (data->task);
6891 /* Close the file ignoring any error */
6892 g_input_stream_close_async (stream, 0, NULL, NULL, NULL);
6893 g_object_unref (stream);
6895 else if (read_size == 0)
6897 g_file_input_stream_query_info_async (G_FILE_INPUT_STREAM (stream),
6898 G_FILE_ATTRIBUTE_ETAG_VALUE,
6900 g_task_get_cancellable (data->task),
6901 load_contents_fstat_callback,
6902 data);
6904 else if (read_size > 0)
6906 data->pos += read_size;
6908 g_byte_array_set_size (data->content,
6909 data->pos + GET_CONTENT_BLOCK_SIZE);
6912 if (data->read_more_callback &&
6913 !data->read_more_callback ((char *)data->content->data, data->pos,
6914 g_async_result_get_user_data (G_ASYNC_RESULT (data->task))))
6915 g_file_input_stream_query_info_async (G_FILE_INPUT_STREAM (stream),
6916 G_FILE_ATTRIBUTE_ETAG_VALUE,
6918 g_task_get_cancellable (data->task),
6919 load_contents_fstat_callback,
6920 data);
6921 else
6922 g_input_stream_read_async (stream,
6923 data->content->data + data->pos,
6924 GET_CONTENT_BLOCK_SIZE,
6926 g_task_get_cancellable (data->task),
6927 load_contents_read_callback,
6928 data);
6932 static void
6933 load_contents_open_callback (GObject *obj,
6934 GAsyncResult *open_res,
6935 gpointer user_data)
6937 GFile *file = G_FILE (obj);
6938 GFileInputStream *stream;
6939 LoadContentsData *data = user_data;
6940 GError *error = NULL;
6942 stream = g_file_read_finish (file, open_res, &error);
6944 if (stream)
6946 g_byte_array_set_size (data->content,
6947 data->pos + GET_CONTENT_BLOCK_SIZE);
6948 g_input_stream_read_async (G_INPUT_STREAM (stream),
6949 data->content->data + data->pos,
6950 GET_CONTENT_BLOCK_SIZE,
6952 g_task_get_cancellable (data->task),
6953 load_contents_read_callback,
6954 data);
6956 else
6958 g_task_return_error (data->task, error);
6959 g_object_unref (data->task);
6964 * g_file_load_partial_contents_async: (skip)
6965 * @file: input #GFile
6966 * @cancellable: optional #GCancellable object, %NULL to ignore
6967 * @read_more_callback: a #GFileReadMoreCallback to receive partial data
6968 * and to specify whether further data should be read
6969 * @callback: a #GAsyncReadyCallback to call when the request is satisfied
6970 * @user_data: the data to pass to the callback functions
6972 * Reads the partial contents of a file. A #GFileReadMoreCallback should
6973 * be used to stop reading from the file when appropriate, else this
6974 * function will behave exactly as g_file_load_contents_async(). This
6975 * operation can be finished by g_file_load_partial_contents_finish().
6977 * Users of this function should be aware that @user_data is passed to
6978 * both the @read_more_callback and the @callback.
6980 * If @cancellable is not %NULL, then the operation can be cancelled by
6981 * triggering the cancellable object from another thread. If the operation
6982 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
6984 void
6985 g_file_load_partial_contents_async (GFile *file,
6986 GCancellable *cancellable,
6987 GFileReadMoreCallback read_more_callback,
6988 GAsyncReadyCallback callback,
6989 gpointer user_data)
6991 LoadContentsData *data;
6993 g_return_if_fail (G_IS_FILE (file));
6995 data = g_new0 (LoadContentsData, 1);
6996 data->read_more_callback = read_more_callback;
6997 data->content = g_byte_array_new ();
6999 data->task = g_task_new (file, cancellable, callback, user_data);
7000 g_task_set_source_tag (data->task, g_file_load_partial_contents_async);
7001 g_task_set_task_data (data->task, data, (GDestroyNotify)load_contents_data_free);
7003 g_file_read_async (file,
7005 g_task_get_cancellable (data->task),
7006 load_contents_open_callback,
7007 data);
7011 * g_file_load_partial_contents_finish:
7012 * @file: input #GFile
7013 * @res: a #GAsyncResult
7014 * @contents: (out) (transfer full) (element-type guint8) (array length=length): a location to place the contents of the file
7015 * @length: (out) (optional): a location to place the length of the contents of the file,
7016 * or %NULL if the length is not needed
7017 * @etag_out: (out) (optional): a location to place the current entity tag for the file,
7018 * or %NULL if the entity tag is not needed
7019 * @error: a #GError, or %NULL
7021 * Finishes an asynchronous partial load operation that was started
7022 * with g_file_load_partial_contents_async(). The data is always
7023 * zero-terminated, but this is not included in the resultant @length.
7024 * The returned @content should be freed with g_free() when no longer
7025 * needed.
7027 * Returns: %TRUE if the load was successful. If %FALSE and @error is
7028 * present, it will be set appropriately.
7030 gboolean
7031 g_file_load_partial_contents_finish (GFile *file,
7032 GAsyncResult *res,
7033 char **contents,
7034 gsize *length,
7035 char **etag_out,
7036 GError **error)
7038 GTask *task;
7039 LoadContentsData *data;
7041 g_return_val_if_fail (G_IS_FILE (file), FALSE);
7042 g_return_val_if_fail (g_task_is_valid (res, file), FALSE);
7043 g_return_val_if_fail (contents != NULL, FALSE);
7045 task = G_TASK (res);
7047 if (!g_task_propagate_boolean (task, error))
7049 if (length)
7050 *length = 0;
7051 return FALSE;
7054 data = g_task_get_task_data (task);
7056 if (length)
7057 *length = data->pos;
7059 if (etag_out)
7061 *etag_out = data->etag;
7062 data->etag = NULL;
7065 /* Zero terminate */
7066 g_byte_array_set_size (data->content, data->pos + 1);
7067 data->content->data[data->pos] = 0;
7069 *contents = (char *)g_byte_array_free (data->content, FALSE);
7070 data->content = NULL;
7072 return TRUE;
7076 * g_file_load_contents_async:
7077 * @file: input #GFile
7078 * @cancellable: optional #GCancellable object, %NULL to ignore
7079 * @callback: a #GAsyncReadyCallback to call when the request is satisfied
7080 * @user_data: the data to pass to callback function
7082 * Starts an asynchronous load of the @file's contents.
7084 * For more details, see g_file_load_contents() which is
7085 * the synchronous version of this call.
7087 * When the load operation has completed, @callback will be called
7088 * with @user data. To finish the operation, call
7089 * g_file_load_contents_finish() with the #GAsyncResult returned by
7090 * the @callback.
7092 * If @cancellable is not %NULL, then the operation can be cancelled by
7093 * triggering the cancellable object from another thread. If the operation
7094 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
7096 void
7097 g_file_load_contents_async (GFile *file,
7098 GCancellable *cancellable,
7099 GAsyncReadyCallback callback,
7100 gpointer user_data)
7102 g_file_load_partial_contents_async (file,
7103 cancellable,
7104 NULL,
7105 callback, user_data);
7109 * g_file_load_contents_finish:
7110 * @file: input #GFile
7111 * @res: a #GAsyncResult
7112 * @contents: (out) (transfer full) (element-type guint8) (array length=length): a location to place the contents of the file
7113 * @length: (out) (optional): a location to place the length of the contents of the file,
7114 * or %NULL if the length is not needed
7115 * @etag_out: (out) (optional): a location to place the current entity tag for the file,
7116 * or %NULL if the entity tag is not needed
7117 * @error: a #GError, or %NULL
7119 * Finishes an asynchronous load of the @file's contents.
7120 * The contents are placed in @contents, and @length is set to the
7121 * size of the @contents string. The @content should be freed with
7122 * g_free() when no longer needed. If @etag_out is present, it will be
7123 * set to the new entity tag for the @file.
7125 * Returns: %TRUE if the load was successful. If %FALSE and @error is
7126 * present, it will be set appropriately.
7128 gboolean
7129 g_file_load_contents_finish (GFile *file,
7130 GAsyncResult *res,
7131 char **contents,
7132 gsize *length,
7133 char **etag_out,
7134 GError **error)
7136 return g_file_load_partial_contents_finish (file,
7137 res,
7138 contents,
7139 length,
7140 etag_out,
7141 error);
7145 * g_file_replace_contents:
7146 * @file: input #GFile
7147 * @contents: (element-type guint8) (array length=length): a string containing the new contents for @file
7148 * @length: the length of @contents in bytes
7149 * @etag: (nullable): the old [entity-tag][gfile-etag] for the document,
7150 * or %NULL
7151 * @make_backup: %TRUE if a backup should be created
7152 * @flags: a set of #GFileCreateFlags
7153 * @new_etag: (out) (optional): a location to a new [entity tag][gfile-etag]
7154 * for the document. This should be freed with g_free() when no longer
7155 * needed, or %NULL
7156 * @cancellable: optional #GCancellable object, %NULL to ignore
7157 * @error: a #GError, or %NULL
7159 * Replaces the contents of @file with @contents of @length bytes.
7161 * If @etag is specified (not %NULL), any existing file must have that etag,
7162 * or the error %G_IO_ERROR_WRONG_ETAG will be returned.
7164 * If @make_backup is %TRUE, this function will attempt to make a backup
7165 * of @file. Internally, it uses g_file_replace(), so will try to replace the
7166 * file contents in the safest way possible. For example, atomic renames are
7167 * used when replacing local files’ contents.
7169 * If @cancellable is not %NULL, then the operation can be cancelled by
7170 * triggering the cancellable object from another thread. If the operation
7171 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
7173 * The returned @new_etag can be used to verify that the file hasn't
7174 * changed the next time it is saved over.
7176 * Returns: %TRUE if successful. If an error has occurred, this function
7177 * will return %FALSE and set @error appropriately if present.
7179 gboolean
7180 g_file_replace_contents (GFile *file,
7181 const char *contents,
7182 gsize length,
7183 const char *etag,
7184 gboolean make_backup,
7185 GFileCreateFlags flags,
7186 char **new_etag,
7187 GCancellable *cancellable,
7188 GError **error)
7190 GFileOutputStream *out;
7191 gsize pos, remainder;
7192 gssize res;
7193 gboolean ret;
7195 g_return_val_if_fail (G_IS_FILE (file), FALSE);
7196 g_return_val_if_fail (contents != NULL, FALSE);
7198 out = g_file_replace (file, etag, make_backup, flags, cancellable, error);
7199 if (out == NULL)
7200 return FALSE;
7202 pos = 0;
7203 remainder = length;
7204 while (remainder > 0 &&
7205 (res = g_output_stream_write (G_OUTPUT_STREAM (out),
7206 contents + pos,
7207 MIN (remainder, GET_CONTENT_BLOCK_SIZE),
7208 cancellable,
7209 error)) > 0)
7211 pos += res;
7212 remainder -= res;
7215 if (remainder > 0 && res < 0)
7217 /* Ignore errors on close */
7218 g_output_stream_close (G_OUTPUT_STREAM (out), cancellable, NULL);
7219 g_object_unref (out);
7221 /* error is set already */
7222 return FALSE;
7225 ret = g_output_stream_close (G_OUTPUT_STREAM (out), cancellable, error);
7227 if (new_etag)
7228 *new_etag = g_file_output_stream_get_etag (out);
7230 g_object_unref (out);
7232 return ret;
7235 typedef struct {
7236 GTask *task;
7237 GBytes *content;
7238 gsize pos;
7239 char *etag;
7240 gboolean failed;
7241 } ReplaceContentsData;
7243 static void
7244 replace_contents_data_free (ReplaceContentsData *data)
7246 g_bytes_unref (data->content);
7247 g_free (data->etag);
7248 g_free (data);
7251 static void
7252 replace_contents_close_callback (GObject *obj,
7253 GAsyncResult *close_res,
7254 gpointer user_data)
7256 GOutputStream *stream = G_OUTPUT_STREAM (obj);
7257 ReplaceContentsData *data = user_data;
7259 /* Ignore errors here, we're only reading anyway */
7260 g_output_stream_close_finish (stream, close_res, NULL);
7261 g_object_unref (stream);
7263 if (!data->failed)
7265 data->etag = g_file_output_stream_get_etag (G_FILE_OUTPUT_STREAM (stream));
7266 g_task_return_boolean (data->task, TRUE);
7268 g_object_unref (data->task);
7271 static void
7272 replace_contents_write_callback (GObject *obj,
7273 GAsyncResult *read_res,
7274 gpointer user_data)
7276 GOutputStream *stream = G_OUTPUT_STREAM (obj);
7277 ReplaceContentsData *data = user_data;
7278 GError *error = NULL;
7279 gssize write_size;
7281 write_size = g_output_stream_write_finish (stream, read_res, &error);
7283 if (write_size <= 0)
7285 /* Error or EOF, close the file */
7286 if (write_size < 0)
7288 data->failed = TRUE;
7289 g_task_return_error (data->task, error);
7291 g_output_stream_close_async (stream, 0,
7292 g_task_get_cancellable (data->task),
7293 replace_contents_close_callback, data);
7295 else if (write_size > 0)
7297 const gchar *content;
7298 gsize length;
7300 content = g_bytes_get_data (data->content, &length);
7301 data->pos += write_size;
7303 if (data->pos >= length)
7304 g_output_stream_close_async (stream, 0,
7305 g_task_get_cancellable (data->task),
7306 replace_contents_close_callback, data);
7307 else
7308 g_output_stream_write_async (stream,
7309 content + data->pos,
7310 length - data->pos,
7312 g_task_get_cancellable (data->task),
7313 replace_contents_write_callback,
7314 data);
7318 static void
7319 replace_contents_open_callback (GObject *obj,
7320 GAsyncResult *open_res,
7321 gpointer user_data)
7323 GFile *file = G_FILE (obj);
7324 GFileOutputStream *stream;
7325 ReplaceContentsData *data = user_data;
7326 GError *error = NULL;
7328 stream = g_file_replace_finish (file, open_res, &error);
7330 if (stream)
7332 const gchar *content;
7333 gsize length;
7335 content = g_bytes_get_data (data->content, &length);
7336 g_output_stream_write_async (G_OUTPUT_STREAM (stream),
7337 content + data->pos,
7338 length - data->pos,
7340 g_task_get_cancellable (data->task),
7341 replace_contents_write_callback,
7342 data);
7344 else
7346 g_task_return_error (data->task, error);
7347 g_object_unref (data->task);
7352 * g_file_replace_contents_async:
7353 * @file: input #GFile
7354 * @contents: (element-type guint8) (array length=length): string of contents to replace the file with
7355 * @length: the length of @contents in bytes
7356 * @etag: (nullable): a new [entity tag][gfile-etag] for the @file, or %NULL
7357 * @make_backup: %TRUE if a backup should be created
7358 * @flags: a set of #GFileCreateFlags
7359 * @cancellable: optional #GCancellable object, %NULL to ignore
7360 * @callback: a #GAsyncReadyCallback to call when the request is satisfied
7361 * @user_data: the data to pass to callback function
7363 * Starts an asynchronous replacement of @file with the given
7364 * @contents of @length bytes. @etag will replace the document's
7365 * current entity tag.
7367 * When this operation has completed, @callback will be called with
7368 * @user_user data, and the operation can be finalized with
7369 * g_file_replace_contents_finish().
7371 * If @cancellable is not %NULL, then the operation can be cancelled by
7372 * triggering the cancellable object from another thread. If the operation
7373 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
7375 * If @make_backup is %TRUE, this function will attempt to
7376 * make a backup of @file.
7378 * Note that no copy of @content will be made, so it must stay valid
7379 * until @callback is called. See g_file_replace_contents_bytes_async()
7380 * for a #GBytes version that will automatically hold a reference to the
7381 * contents (without copying) for the duration of the call.
7383 void
7384 g_file_replace_contents_async (GFile *file,
7385 const char *contents,
7386 gsize length,
7387 const char *etag,
7388 gboolean make_backup,
7389 GFileCreateFlags flags,
7390 GCancellable *cancellable,
7391 GAsyncReadyCallback callback,
7392 gpointer user_data)
7394 GBytes *bytes;
7396 bytes = g_bytes_new_static (contents, length);
7397 g_file_replace_contents_bytes_async (file, bytes, etag, make_backup, flags,
7398 cancellable, callback, user_data);
7399 g_bytes_unref (bytes);
7403 * g_file_replace_contents_bytes_async:
7404 * @file: input #GFile
7405 * @contents: a #GBytes
7406 * @etag: (nullable): a new [entity tag][gfile-etag] for the @file, or %NULL
7407 * @make_backup: %TRUE if a backup should be created
7408 * @flags: a set of #GFileCreateFlags
7409 * @cancellable: optional #GCancellable object, %NULL to ignore
7410 * @callback: a #GAsyncReadyCallback to call when the request is satisfied
7411 * @user_data: the data to pass to callback function
7413 * Same as g_file_replace_contents_async() but takes a #GBytes input instead.
7414 * This function will keep a ref on @contents until the operation is done.
7415 * Unlike g_file_replace_contents_async() this allows forgetting about the
7416 * content without waiting for the callback.
7418 * When this operation has completed, @callback will be called with
7419 * @user_user data, and the operation can be finalized with
7420 * g_file_replace_contents_finish().
7422 * Since: 2.40
7424 void
7425 g_file_replace_contents_bytes_async (GFile *file,
7426 GBytes *contents,
7427 const char *etag,
7428 gboolean make_backup,
7429 GFileCreateFlags flags,
7430 GCancellable *cancellable,
7431 GAsyncReadyCallback callback,
7432 gpointer user_data)
7434 ReplaceContentsData *data;
7436 g_return_if_fail (G_IS_FILE (file));
7437 g_return_if_fail (contents != NULL);
7439 data = g_new0 (ReplaceContentsData, 1);
7441 data->content = g_bytes_ref (contents);
7443 data->task = g_task_new (file, cancellable, callback, user_data);
7444 g_task_set_source_tag (data->task, g_file_replace_contents_bytes_async);
7445 g_task_set_task_data (data->task, data, (GDestroyNotify)replace_contents_data_free);
7447 g_file_replace_async (file,
7448 etag,
7449 make_backup,
7450 flags,
7452 g_task_get_cancellable (data->task),
7453 replace_contents_open_callback,
7454 data);
7458 * g_file_replace_contents_finish:
7459 * @file: input #GFile
7460 * @res: a #GAsyncResult
7461 * @new_etag: (out) (optional): a location of a new [entity tag][gfile-etag]
7462 * for the document. This should be freed with g_free() when it is no
7463 * longer needed, or %NULL
7464 * @error: a #GError, or %NULL
7466 * Finishes an asynchronous replace of the given @file. See
7467 * g_file_replace_contents_async(). Sets @new_etag to the new entity
7468 * tag for the document, if present.
7470 * Returns: %TRUE on success, %FALSE on failure.
7472 gboolean
7473 g_file_replace_contents_finish (GFile *file,
7474 GAsyncResult *res,
7475 char **new_etag,
7476 GError **error)
7478 GTask *task;
7479 ReplaceContentsData *data;
7481 g_return_val_if_fail (G_IS_FILE (file), FALSE);
7482 g_return_val_if_fail (g_task_is_valid (res, file), FALSE);
7484 task = G_TASK (res);
7486 if (!g_task_propagate_boolean (task, error))
7487 return FALSE;
7489 data = g_task_get_task_data (task);
7491 if (new_etag)
7493 *new_etag = data->etag;
7494 data->etag = NULL; /* Take ownership */
7497 return TRUE;
7500 gboolean
7501 g_file_real_measure_disk_usage (GFile *file,
7502 GFileMeasureFlags flags,
7503 GCancellable *cancellable,
7504 GFileMeasureProgressCallback progress_callback,
7505 gpointer progress_data,
7506 guint64 *disk_usage,
7507 guint64 *num_dirs,
7508 guint64 *num_files,
7509 GError **error)
7511 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
7512 "Operation not supported for the current backend.");
7513 return FALSE;
7516 typedef struct
7518 GFileMeasureFlags flags;
7519 GFileMeasureProgressCallback progress_callback;
7520 gpointer progress_data;
7521 } MeasureTaskData;
7523 typedef struct
7525 guint64 disk_usage;
7526 guint64 num_dirs;
7527 guint64 num_files;
7528 } MeasureResult;
7530 typedef struct
7532 GFileMeasureProgressCallback callback;
7533 gpointer user_data;
7534 gboolean reporting;
7535 guint64 current_size;
7536 guint64 num_dirs;
7537 guint64 num_files;
7538 } MeasureProgress;
7540 static gboolean
7541 measure_disk_usage_invoke_progress (gpointer user_data)
7543 MeasureProgress *progress = user_data;
7545 (* progress->callback) (progress->reporting,
7546 progress->current_size, progress->num_dirs, progress->num_files,
7547 progress->user_data);
7549 return FALSE;
7552 static void
7553 measure_disk_usage_progress (gboolean reporting,
7554 guint64 current_size,
7555 guint64 num_dirs,
7556 guint64 num_files,
7557 gpointer user_data)
7559 MeasureProgress progress;
7560 GTask *task = user_data;
7561 MeasureTaskData *data;
7563 data = g_task_get_task_data (task);
7565 progress.callback = data->progress_callback;
7566 progress.user_data = data->progress_data;
7567 progress.reporting = reporting;
7568 progress.current_size = current_size;
7569 progress.num_dirs = num_dirs;
7570 progress.num_files = num_files;
7572 g_main_context_invoke_full (g_task_get_context (task),
7573 g_task_get_priority (task),
7574 measure_disk_usage_invoke_progress,
7575 g_memdup (&progress, sizeof progress),
7576 g_free);
7579 static void
7580 measure_disk_usage_thread (GTask *task,
7581 gpointer source_object,
7582 gpointer task_data,
7583 GCancellable *cancellable)
7585 MeasureTaskData *data = task_data;
7586 GError *error = NULL;
7587 MeasureResult result = { 0, };
7589 if (g_file_measure_disk_usage (source_object, data->flags, cancellable,
7590 data->progress_callback ? measure_disk_usage_progress : NULL, task,
7591 &result.disk_usage, &result.num_dirs, &result.num_files,
7592 &error))
7593 g_task_return_pointer (task, g_memdup (&result, sizeof result), g_free);
7594 else
7595 g_task_return_error (task, error);
7598 static void
7599 g_file_real_measure_disk_usage_async (GFile *file,
7600 GFileMeasureFlags flags,
7601 gint io_priority,
7602 GCancellable *cancellable,
7603 GFileMeasureProgressCallback progress_callback,
7604 gpointer progress_data,
7605 GAsyncReadyCallback callback,
7606 gpointer user_data)
7608 MeasureTaskData data;
7609 GTask *task;
7611 data.flags = flags;
7612 data.progress_callback = progress_callback;
7613 data.progress_data = progress_data;
7615 task = g_task_new (file, cancellable, callback, user_data);
7616 g_task_set_source_tag (task, g_file_real_measure_disk_usage_async);
7617 g_task_set_task_data (task, g_memdup (&data, sizeof data), g_free);
7618 g_task_set_priority (task, io_priority);
7620 g_task_run_in_thread (task, measure_disk_usage_thread);
7621 g_object_unref (task);
7624 static gboolean
7625 g_file_real_measure_disk_usage_finish (GFile *file,
7626 GAsyncResult *result,
7627 guint64 *disk_usage,
7628 guint64 *num_dirs,
7629 guint64 *num_files,
7630 GError **error)
7632 MeasureResult *measure_result;
7634 g_return_val_if_fail (g_task_is_valid (result, file), FALSE);
7636 measure_result = g_task_propagate_pointer (G_TASK (result), error);
7638 if (measure_result == NULL)
7639 return FALSE;
7641 if (disk_usage)
7642 *disk_usage = measure_result->disk_usage;
7644 if (num_dirs)
7645 *num_dirs = measure_result->num_dirs;
7647 if (num_files)
7648 *num_files = measure_result->num_files;
7650 g_free (measure_result);
7652 return TRUE;
7656 * g_file_measure_disk_usage:
7657 * @file: a #GFile
7658 * @flags: #GFileMeasureFlags
7659 * @cancellable: (nullable): optional #GCancellable
7660 * @progress_callback: (nullable): a #GFileMeasureProgressCallback
7661 * @progress_data: user_data for @progress_callback
7662 * @disk_usage: (out) (optional): the number of bytes of disk space used
7663 * @num_dirs: (out) (optional): the number of directories encountered
7664 * @num_files: (out) (optional): the number of non-directories encountered
7665 * @error: (nullable): %NULL, or a pointer to a %NULL #GError pointer
7667 * Recursively measures the disk usage of @file.
7669 * This is essentially an analog of the 'du' command, but it also
7670 * reports the number of directories and non-directory files encountered
7671 * (including things like symbolic links).
7673 * By default, errors are only reported against the toplevel file
7674 * itself. Errors found while recursing are silently ignored, unless
7675 * %G_FILE_DISK_USAGE_REPORT_ALL_ERRORS is given in @flags.
7677 * The returned size, @disk_usage, is in bytes and should be formatted
7678 * with g_format_size() in order to get something reasonable for showing
7679 * in a user interface.
7681 * @progress_callback and @progress_data can be given to request
7682 * periodic progress updates while scanning. See the documentation for
7683 * #GFileMeasureProgressCallback for information about when and how the
7684 * callback will be invoked.
7686 * Returns: %TRUE if successful, with the out parameters set.
7687 * %FALSE otherwise, with @error set.
7689 * Since: 2.38
7691 gboolean
7692 g_file_measure_disk_usage (GFile *file,
7693 GFileMeasureFlags flags,
7694 GCancellable *cancellable,
7695 GFileMeasureProgressCallback progress_callback,
7696 gpointer progress_data,
7697 guint64 *disk_usage,
7698 guint64 *num_dirs,
7699 guint64 *num_files,
7700 GError **error)
7702 g_return_val_if_fail (G_IS_FILE (file), FALSE);
7703 g_return_val_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable), FALSE);
7704 g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
7706 return G_FILE_GET_IFACE (file)->measure_disk_usage (file, flags, cancellable,
7707 progress_callback, progress_data,
7708 disk_usage, num_dirs, num_files,
7709 error);
7713 * g_file_measure_disk_usage_async:
7714 * @file: a #GFile
7715 * @flags: #GFileMeasureFlags
7716 * @io_priority: the [I/O priority][io-priority] of the request
7717 * @cancellable: (nullable): optional #GCancellable
7718 * @progress_callback: (nullable): a #GFileMeasureProgressCallback
7719 * @progress_data: user_data for @progress_callback
7720 * @callback: (nullable): a #GAsyncReadyCallback to call when complete
7721 * @user_data: the data to pass to callback function
7723 * Recursively measures the disk usage of @file.
7725 * This is the asynchronous version of g_file_measure_disk_usage(). See
7726 * there for more information.
7728 * Since: 2.38
7730 void
7731 g_file_measure_disk_usage_async (GFile *file,
7732 GFileMeasureFlags flags,
7733 gint io_priority,
7734 GCancellable *cancellable,
7735 GFileMeasureProgressCallback progress_callback,
7736 gpointer progress_data,
7737 GAsyncReadyCallback callback,
7738 gpointer user_data)
7740 g_return_if_fail (G_IS_FILE (file));
7741 g_return_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable));
7743 G_FILE_GET_IFACE (file)->measure_disk_usage_async (file, flags, io_priority, cancellable,
7744 progress_callback, progress_data,
7745 callback, user_data);
7749 * g_file_measure_disk_usage_finish:
7750 * @file: a #GFile
7751 * @result: the #GAsyncResult passed to your #GAsyncReadyCallback
7752 * @disk_usage: (out) (optional): the number of bytes of disk space used
7753 * @num_dirs: (out) (optional): the number of directories encountered
7754 * @num_files: (out) (optional): the number of non-directories encountered
7755 * @error: (nullable): %NULL, or a pointer to a %NULL #GError pointer
7757 * Collects the results from an earlier call to
7758 * g_file_measure_disk_usage_async(). See g_file_measure_disk_usage() for
7759 * more information.
7761 * Returns: %TRUE if successful, with the out parameters set.
7762 * %FALSE otherwise, with @error set.
7764 * Since: 2.38
7766 gboolean
7767 g_file_measure_disk_usage_finish (GFile *file,
7768 GAsyncResult *result,
7769 guint64 *disk_usage,
7770 guint64 *num_dirs,
7771 guint64 *num_files,
7772 GError **error)
7774 g_return_val_if_fail (G_IS_FILE (file), FALSE);
7775 g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
7777 return G_FILE_GET_IFACE (file)->measure_disk_usage_finish (file, result, disk_usage, num_dirs, num_files, error);
7781 * g_file_start_mountable:
7782 * @file: input #GFile
7783 * @flags: flags affecting the operation
7784 * @start_operation: (nullable): a #GMountOperation, or %NULL to avoid user interaction
7785 * @cancellable: (nullable): optional #GCancellable object, %NULL to ignore
7786 * @callback: (nullable): a #GAsyncReadyCallback to call when the request is satisfied, or %NULL
7787 * @user_data: the data to pass to callback function
7789 * Starts a file of type #G_FILE_TYPE_MOUNTABLE.
7790 * Using @start_operation, you can request callbacks when, for instance,
7791 * passwords are needed during authentication.
7793 * If @cancellable is not %NULL, then the operation can be cancelled by
7794 * triggering the cancellable object from another thread. If the operation
7795 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
7797 * When the operation is finished, @callback will be called.
7798 * You can then call g_file_mount_mountable_finish() to get
7799 * the result of the operation.
7801 * Since: 2.22
7803 void
7804 g_file_start_mountable (GFile *file,
7805 GDriveStartFlags flags,
7806 GMountOperation *start_operation,
7807 GCancellable *cancellable,
7808 GAsyncReadyCallback callback,
7809 gpointer user_data)
7811 GFileIface *iface;
7813 g_return_if_fail (G_IS_FILE (file));
7815 iface = G_FILE_GET_IFACE (file);
7817 if (iface->start_mountable == NULL)
7819 g_task_report_new_error (file, callback, user_data,
7820 g_file_start_mountable,
7821 G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
7822 _("Operation not supported"));
7823 return;
7826 (* iface->start_mountable) (file,
7827 flags,
7828 start_operation,
7829 cancellable,
7830 callback,
7831 user_data);
7835 * g_file_start_mountable_finish:
7836 * @file: input #GFile
7837 * @result: a #GAsyncResult
7838 * @error: a #GError, or %NULL
7840 * Finishes a start operation. See g_file_start_mountable() for details.
7842 * Finish an asynchronous start operation that was started
7843 * with g_file_start_mountable().
7845 * Returns: %TRUE if the operation finished successfully. %FALSE
7846 * otherwise.
7848 * Since: 2.22
7850 gboolean
7851 g_file_start_mountable_finish (GFile *file,
7852 GAsyncResult *result,
7853 GError **error)
7855 GFileIface *iface;
7857 g_return_val_if_fail (G_IS_FILE (file), FALSE);
7858 g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
7860 if (g_async_result_legacy_propagate_error (result, error))
7861 return FALSE;
7862 else if (g_async_result_is_tagged (result, g_file_start_mountable))
7863 return g_task_propagate_boolean (G_TASK (result), error);
7865 iface = G_FILE_GET_IFACE (file);
7866 return (* iface->start_mountable_finish) (file, result, error);
7870 * g_file_stop_mountable:
7871 * @file: input #GFile
7872 * @flags: flags affecting the operation
7873 * @mount_operation: (nullable): a #GMountOperation,
7874 * or %NULL to avoid user interaction.
7875 * @cancellable: (nullable): optional #GCancellable object,
7876 * %NULL to ignore
7877 * @callback: (nullable): a #GAsyncReadyCallback to call
7878 * when the request is satisfied, or %NULL
7879 * @user_data: the data to pass to callback function
7881 * Stops a file of type #G_FILE_TYPE_MOUNTABLE.
7883 * If @cancellable is not %NULL, then the operation can be cancelled by
7884 * triggering the cancellable object from another thread. If the operation
7885 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
7887 * When the operation is finished, @callback will be called.
7888 * You can then call g_file_stop_mountable_finish() to get
7889 * the result of the operation.
7891 * Since: 2.22
7893 void
7894 g_file_stop_mountable (GFile *file,
7895 GMountUnmountFlags flags,
7896 GMountOperation *mount_operation,
7897 GCancellable *cancellable,
7898 GAsyncReadyCallback callback,
7899 gpointer user_data)
7901 GFileIface *iface;
7903 g_return_if_fail (G_IS_FILE (file));
7905 iface = G_FILE_GET_IFACE (file);
7907 if (iface->stop_mountable == NULL)
7909 g_task_report_new_error (file, callback, user_data,
7910 g_file_stop_mountable,
7911 G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
7912 _("Operation not supported"));
7913 return;
7916 (* iface->stop_mountable) (file,
7917 flags,
7918 mount_operation,
7919 cancellable,
7920 callback,
7921 user_data);
7925 * g_file_stop_mountable_finish:
7926 * @file: input #GFile
7927 * @result: a #GAsyncResult
7928 * @error: a #GError, or %NULL
7930 * Finishes an stop operation, see g_file_stop_mountable() for details.
7932 * Finish an asynchronous stop operation that was started
7933 * with g_file_stop_mountable().
7935 * Returns: %TRUE if the operation finished successfully.
7936 * %FALSE otherwise.
7938 * Since: 2.22
7940 gboolean
7941 g_file_stop_mountable_finish (GFile *file,
7942 GAsyncResult *result,
7943 GError **error)
7945 GFileIface *iface;
7947 g_return_val_if_fail (G_IS_FILE (file), FALSE);
7948 g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
7950 if (g_async_result_legacy_propagate_error (result, error))
7951 return FALSE;
7952 else if (g_async_result_is_tagged (result, g_file_stop_mountable))
7953 return g_task_propagate_boolean (G_TASK (result), error);
7955 iface = G_FILE_GET_IFACE (file);
7956 return (* iface->stop_mountable_finish) (file, result, error);
7960 * g_file_poll_mountable:
7961 * @file: input #GFile
7962 * @cancellable: optional #GCancellable object, %NULL to ignore
7963 * @callback: (nullable): a #GAsyncReadyCallback to call
7964 * when the request is satisfied, or %NULL
7965 * @user_data: the data to pass to callback function
7967 * Polls a file of type #G_FILE_TYPE_MOUNTABLE.
7969 * If @cancellable is not %NULL, then the operation can be cancelled by
7970 * triggering the cancellable object from another thread. If the operation
7971 * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
7973 * When the operation is finished, @callback will be called.
7974 * You can then call g_file_mount_mountable_finish() to get
7975 * the result of the operation.
7977 * Since: 2.22
7979 void
7980 g_file_poll_mountable (GFile *file,
7981 GCancellable *cancellable,
7982 GAsyncReadyCallback callback,
7983 gpointer user_data)
7985 GFileIface *iface;
7987 g_return_if_fail (G_IS_FILE (file));
7989 iface = G_FILE_GET_IFACE (file);
7991 if (iface->poll_mountable == NULL)
7993 g_task_report_new_error (file, callback, user_data,
7994 g_file_poll_mountable,
7995 G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
7996 _("Operation not supported"));
7997 return;
8000 (* iface->poll_mountable) (file,
8001 cancellable,
8002 callback,
8003 user_data);
8007 * g_file_poll_mountable_finish:
8008 * @file: input #GFile
8009 * @result: a #GAsyncResult
8010 * @error: a #GError, or %NULL
8012 * Finishes a poll operation. See g_file_poll_mountable() for details.
8014 * Finish an asynchronous poll operation that was polled
8015 * with g_file_poll_mountable().
8017 * Returns: %TRUE if the operation finished successfully. %FALSE
8018 * otherwise.
8020 * Since: 2.22
8022 gboolean
8023 g_file_poll_mountable_finish (GFile *file,
8024 GAsyncResult *result,
8025 GError **error)
8027 GFileIface *iface;
8029 g_return_val_if_fail (G_IS_FILE (file), FALSE);
8030 g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
8032 if (g_async_result_legacy_propagate_error (result, error))
8033 return FALSE;
8034 else if (g_async_result_is_tagged (result, g_file_poll_mountable))
8035 return g_task_propagate_boolean (G_TASK (result), error);
8037 iface = G_FILE_GET_IFACE (file);
8038 return (* iface->poll_mountable_finish) (file, result, error);
8042 * g_file_supports_thread_contexts:
8043 * @file: a #GFile
8045 * Checks if @file supports
8046 * [thread-default contexts][g-main-context-push-thread-default-context].
8047 * If this returns %FALSE, you cannot perform asynchronous operations on
8048 * @file in a thread that has a thread-default context.
8050 * Returns: Whether or not @file supports thread-default contexts.
8052 * Since: 2.22
8054 gboolean
8055 g_file_supports_thread_contexts (GFile *file)
8057 GFileIface *iface;
8059 g_return_val_if_fail (G_IS_FILE (file), FALSE);
8061 iface = G_FILE_GET_IFACE (file);
8062 return iface->supports_thread_contexts;