1 /* GIO - GLib Input, Output and Streaming Library
3 * Copyright (C) 2006-2007 Red Hat, Inc.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General
16 * Public License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
18 * Boston, MA 02111-1307, USA.
20 * Author: Alexander Larsson <alexl@redhat.com>
27 #include "gfileattribute.h"
28 #include "gfileattribute-priv.h"
29 #include <glib-object.h>
35 * SECTION:gfileattribute
36 * @short_description: Key-Value Paired File Attributes
38 * @see_also: #GFile, #GFileInfo
40 * File attributes in GIO consist of a list of key-value pairs.
42 * Keys are strings that contain a key namespace and a key name, separated
43 * by a colon, e.g. "namespace:keyname". Namespaces are included to sort
44 * key-value pairs by namespaces for relevance. Keys can be retrived
45 * using wildcards, e.g. "standard::*" will return all of the keys in the
46 * "standard" namespace.
48 * Values are stored within the list in #GFileAttributeValue structures.
49 * Values can store different types, listed in the enum #GFileAttributeType.
50 * Upon creation of a #GFileAttributeValue, the type will be set to
51 * %G_FILE_ATTRIBUTE_TYPE_INVALID.
53 * The list of possible attributes for a filesystem (pointed to by a #GFile) is
54 * availible as a #GFileAttributeInfoList. This list is queryable by key names
55 * as indicated earlier.
57 * Classes that implement #GFileIface will create a #GFileAttributeInfoList and
58 * install default keys and values for their given file system, architecture,
59 * and other possible implementation details (e.g., on a UNIX system, a file
60 * attribute key will be registered for the user id for a given file).
64 * <title>GFileAttributes Default Namespaces</title>
65 * <tgroup cols='2' align='left'><thead>
66 * <row><entry>Namspace</entry><entry>Description</entry></row>
69 * <row><entry>"standard"</entry><entry>The "Standard" namespace. General file
70 * information that any application may need should be put in this namespace.
71 * Examples include the file's name, type, and size.</entry></row>
72 * <row><entry>"etag"</entry><entry>The <link linkend="gfile-etag">"Entity Tag"</link>
73 * namespace. Currently, the only key in this namespace is "value", which contains
74 * the value of the current entity tag.</entry></row>
75 * <row><entry>"id"</entry><entry>The "Identification" namespace. This
76 * namespace is used by file managers and applications that list directories
77 * to check for loops and to uniquely identify files.</entry></row>
78 * <row><entry>"access"</entry><entry>The "Access" namespace. Used to check
79 * if a user has the proper privilidges to access files and perform
80 * file operations. Keys in this namespace are made to be generic
81 * and easily understood, e.g. the "can_read" key is %TRUE if
82 * the current user has permission to read the file. UNIX permissions and
83 * NTFS ACLs in Windows should be mapped to these values.</entry></row>
84 * <row><entry>"mountable"</entry><entry>The "Mountable" namespace. Includes
85 * simple boolean keys for checking if a file or path supports mount operations, e.g.
86 * mount, unmount, eject. These are used for files of type %G_FILE_TYPE_MOUNTABLE.</entry></row>
87 * <row><entry>"time"</entry><entry>The "Time" namespace. Includes file
88 * access, changed, created times. </entry></row>
89 * <row><entry>"unix"</entry><entry>The "Unix" namespace. Includes UNIX-specific
90 * information and may not be available for all files. Examples include
91 * the UNIX "UID", "GID", etc.</entry></row>
92 * <row><entry>"dos"</entry><entry>The "DOS" namespace. Includes DOS-specific
93 * information and may not be available for all files. Examples include
94 * "is_system" for checking if a file is marked as a system file, and "is_archive"
95 * for checking if a file is marked as an archive file.</entry></row>
96 * <row><entry>"owner"</entry><entry>The "Owner" namespace. Includes information
97 * about who owns a file. May not be available for all file systems. Examples include
98 * "user" for getting the user name of the file owner. This information is often mapped from
99 * some backend specific data such as a unix UID.</entry></row>
100 * <row><entry>"thumbnail"</entry><entry>The "Thumbnail" namespace. Includes
101 * information about file thumbnails and their location within the file system. Exaples of
102 * keys in this namespace include "path" to get the location of a thumbnail, and "failed"
103 * to check if thumbnailing of the file failed.</entry></row>
104 * <row><entry>"filesystem"</entry><entry>The "Filesystem" namespace. Gets information
105 * about the file system where a file is located, such as its type, how much
106 * space is left available, and the overall size of the file system.</entry></row>
107 * <row><entry>"gvfs"</entry><entry>The "GVFS" namespace. Keys in this namespace
108 * contain information about the current GVFS backend in use. </entry></row>
109 * <row><entry>"xattr"</entry><entry>The "xattr" namespace. Gets information
110 * about extended user attributes. See attr(5). The "user." prefix of the
111 * extended user attribute name is stripped away when constructing keys in
112 * this namespace, e.g. "xattr::mime_type" for the extended attribute with
113 * the name "user.mime_type". Note that this information is only available
114 * if GLib has been built with extended attribute support.</entry></row>
115 * <row><entry>"xattr-sys"</entry><entry>The "xattr-sys" namespace.
116 * Gets information about extended attributes which are not user-specific.
117 * See attr(5). Note that this information is only available if GLib
118 * has been built with extended attribute support.</entry></row>
119 * <row><entry>"selinux"</entry><entry>The "SELinux" namespace. Includes
120 * information about the SELinux context of files. Note that this information
121 * is only available if GLib has been built with SELinux support.</entry></row>
127 * Please note that these are not all of the possible namespaces.
128 * More namespaces can be added from GIO modules or by individual applications.
129 * For more information about writing GIO modules, see #GIOModule.
131 * <!-- TODO: Implementation note about using extended attributes on supported
135 * <title>GFileAttributes Built-in Keys and Value Types</title>
136 * <tgroup cols='3' align='left'><thead>
137 * <row><entry>Enum Value</entry><entry>Namespace:Key</entry><entry>Value Type</entry></row>
139 * <row><entry>%G_FILE_ATTRIBUTE_STANDARD_TYPE</entry><entry>standard::type</entry><entry>uint32 (#GFileType)</entry></row>
140 * <row><entry>%G_FILE_ATTRIBUTE_STANDARD_IS_HIDDEN</entry><entry>standard::is-hidden</entry><entry>boolean</entry></row>
141 * <row><entry>%G_FILE_ATTRIBUTE_STANDARD_IS_BACKUP</entry><entry>standard::is-backup</entry><entry>boolean</entry></row>
142 * <row><entry>%G_FILE_ATTRIBUTE_STANDARD_IS_SYMLINK</entry><entry>standard::is-symlink</entry><entry>boolean</entry></row>
143 * <row><entry>%G_FILE_ATTRIBUTE_STANDARD_IS_VIRTUAL</entry><entry>standard::is-virtual</entry><entry>boolean</entry></row>
144 * <row><entry>%G_FILE_ATTRIBUTE_STANDARD_NAME</entry><entry>standard::name</entry><entry>byte string</entry></row>
145 * <row><entry>%G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME</entry><entry>standard::display-name</entry><entry>string</entry></row>
146 * <row><entry>%G_FILE_ATTRIBUTE_STANDARD_EDIT_NAME</entry><entry>standard::edit-name</entry><entry>string</entry></row>
147 * <row><entry>%G_FILE_ATTRIBUTE_STANDARD_ICON</entry><entry>standard::icon</entry><entry>object (#GIcon)</entry></row>
148 * <row><entry>%G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE</entry><entry>standard::content-type</entry><entry>string</entry></row>
149 * <row><entry>%G_FILE_ATTRIBUTE_STANDARD_FAST_CONTENT_TYPE</entry><entry>standard::fast-content-type</entry><entry>string</entry></row>
150 * <row><entry>%G_FILE_ATTRIBUTE_STANDARD_SIZE</entry><entry>standard::size</entry><entry>uint64</entry></row>
151 * <row><entry>%G_FILE_ATTRIBUTE_STANDARD_SYMLINK_TARGET</entry><entry>standard::symlink-target</entry><entry>byte string</entry></row>
152 * <row><entry>%G_FILE_ATTRIBUTE_STANDARD_TARGET_URI</entry><entry>standard::target-uri</entry><entry>string</entry></row>
153 * <row><entry>%G_FILE_ATTRIBUTE_STANDARD_SORT_ORDER</entry><entry>standard::sort-order</entry><entry>int32</entry></row>
154 * <row><entry>%G_FILE_ATTRIBUTE_ETAG_VALUE</entry><entry>etag::value</entry><entry>string</entry></row>
155 * <row><entry>%G_FILE_ATTRIBUTE_ID_FILE</entry><entry>id::file</entry><entry>string</entry></row>
156 * <row><entry>%G_FILE_ATTRIBUTE_ID_FILESYSTEM</entry><entry>id::filesystem</entry><entry>string</entry></row>
157 * <row><entry>%G_FILE_ATTRIBUTE_ACCESS_CAN_READ</entry><entry>access::can-read</entry><entry>boolean</entry></row>
158 * <row><entry>%G_FILE_ATTRIBUTE_ACCESS_CAN_WRITE</entry><entry>access::can-write</entry><entry>boolean</entry></row>
159 * <row><entry>%G_FILE_ATTRIBUTE_ACCESS_CAN_EXECUTE</entry><entry>access::can-execute</entry><entry>boolean</entry></row>
160 * <row><entry>%G_FILE_ATTRIBUTE_ACCESS_CAN_DELETE</entry><entry>access::can-delete</entry><entry>boolean</entry></row>
161 * <row><entry>%G_FILE_ATTRIBUTE_ACCESS_CAN_TRASH</entry><entry>access::can-trash</entry><entry>boolean</entry></row>
162 * <row><entry>%G_FILE_ATTRIBUTE_ACCESS_CAN_RENAME</entry><entry>access::can-rename</entry><entry>boolean</entry></row>
163 * <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_CAN_MOUNT</entry><entry>mountable::can-mount</entry><entry>boolean</entry></row>
164 * <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_CAN_UNMOUNT</entry><entry>mountable::can-unmount</entry><entry>boolean</entry></row>
165 * <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_CAN_EJECT</entry><entry>mountable::can-eject</entry><entry>boolean</entry></row>
166 * <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_UNIX_DEVICE</entry><entry>mountable::unix-device</entry><entry>uint32</entry></row>
167 * <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_HAL_UDI</entry><entry>mountable::hal-udi</entry><entry>string</entry></row>
168 * <row><entry>%G_FILE_ATTRIBUTE_TIME_MODIFIED</entry><entry>time::modified</entry><entry>uint64</entry></row>
169 * <row><entry>%G_FILE_ATTRIBUTE_TIME_MODIFIED_USEC</entry><entry>time::modified-usec</entry><entry>uint32</entry></row>
170 * <row><entry>%G_FILE_ATTRIBUTE_TIME_ACCESS</entry><entry>time::access</entry><entry>uint64</entry></row>
171 * <row><entry>%G_FILE_ATTRIBUTE_TIME_ACCESS_USEC</entry><entry>time::access-usec</entry><entry>uint32</entry></row>
172 * <row><entry>%G_FILE_ATTRIBUTE_TIME_CHANGED</entry><entry>time::changed</entry><entry>uint64</entry></row>
173 * <row><entry>%G_FILE_ATTRIBUTE_TIME_CHANGED_USEC</entry><entry>time::changed-usec</entry><entry>uint32</entry></row>
174 * <row><entry>%G_FILE_ATTRIBUTE_TIME_CREATED</entry><entry>time::created</entry><entry>uint64</entry></row>
175 * <row><entry>%G_FILE_ATTRIBUTE_TIME_CREATED_USEC</entry><entry>time::created-usec</entry><entry>uint32</entry></row>
176 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_DEVICE</entry><entry>unix::device</entry><entry>uint32</entry></row>
177 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_INODE</entry><entry>unix::inode</entry><entry>uint64</entry></row>
178 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_MODE</entry><entry>unix::mode</entry><entry>uint32</entry></row>
179 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_NLINK</entry><entry>unix::nlink</entry><entry>uint32</entry></row>
180 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_UID</entry><entry>unix::uid</entry><entry>uint32</entry></row>
181 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_GID</entry><entry>unix::gid</entry><entry>uint32</entry></row>
182 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_RDEV</entry><entry>unix::rdev</entry><entry>uint32</entry></row>
183 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_BLOCK_SIZE</entry><entry>unix::block-size</entry><entry>uint32</entry></row>
184 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_BLOCKS</entry><entry>unix::blocks</entry><entry>uint64</entry></row>
185 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_IS_MOUNTPOINT</entry><entry>unix::is-mountpoint</entry><entry>boolean</entry></row>
186 * <row><entry>%G_FILE_ATTRIBUTE_DOS_IS_ARCHIVE</entry><entry>dos::is-archive</entry><entry>boolean</entry></row>
187 * <row><entry>%G_FILE_ATTRIBUTE_DOS_IS_SYSTEM</entry><entry>dos::is-system</entry><entry>boolean</entry></row>
188 * <row><entry>%G_FILE_ATTRIBUTE_OWNER_USER</entry><entry>owner::user</entry><entry>string</entry></row>
189 * <row><entry>%G_FILE_ATTRIBUTE_OWNER_USER_REAL</entry><entry>owner::user-real</entry><entry>string</entry></row>
190 * <row><entry>%G_FILE_ATTRIBUTE_OWNER_GROUP</entry><entry>owner::group</entry><entry>string</entry></row>
191 * <row><entry>%G_FILE_ATTRIBUTE_THUMBNAIL_PATH</entry><entry>thumbnail::path</entry><entry>bytestring</entry></row>
192 * <row><entry>%G_FILE_ATTRIBUTE_THUMBNAILING_FAILED</entry><entry>thumbnail::failed</entry><entry>boolean</entry></row>
193 * <row><entry>%G_FILE_ATTRIBUTE_PREVIEW_ICON</entry><entry>preview::icon</entry><entry>object (#GIcon)</entry></row>
194 * <row><entry>%G_FILE_ATTRIBUTE_FILESYSTEM_SIZE</entry><entry>filesystem::size</entry><entry>uint64</entry></row>
195 * <row><entry>%G_FILE_ATTRIBUTE_FILESYSTEM_FREE</entry><entry>filesystem::free</entry><entry>uint64</entry></row>
196 * <row><entry>%G_FILE_ATTRIBUTE_FILESYSTEM_TYPE</entry><entry>filesystem::type</entry><entry>string</entry></row>
197 * <row><entry>%G_FILE_ATTRIBUTE_FILESYSTEM_READONLY</entry><entry>filesystem::readonly</entry><entry>boolean</entry></row>
198 * <row><entry>%G_FILE_ATTRIBUTE_GVFS_BACKEND</entry><entry>gvfs::backend</entry><entry>string</entry></row>
199 * <row><entry>%G_FILE_ATTRIBUTE_SELINUX_CONTEXT</entry><entry>selinux::context</entry><entry>string</entry></row>
200 * </tbody></tgroup></table></para>
202 * Note that there are no predefined keys in the "xattr" and "xattr-sys"
203 * namespaces. Keys for the "xattr" namespace are constructed by stripping
204 * away the "user." prefix from the extended user attribute, and prepending
205 * "xattr::". Keys for the "xattr-sys" namespace are constructed by
206 * concatenating "xattr-sys::" with the extended attribute name. All extended
207 * attribute values are returned as hex-encoded strings in which bytes outside
208 * the ASCII range are encoded as hexadecimal escape sequences of the form
209 * \x<replaceable>nn</replaceable>.
213 * _g_file_attribute_value_free:
214 * @attr: a #GFileAttributeValue.
216 * Frees the memory used by @attr.
220 _g_file_attribute_value_free (GFileAttributeValue *attr)
222 g_return_if_fail (attr != NULL);
224 _g_file_attribute_value_clear (attr);
229 * _g_file_attribute_value_clear:
230 * @attr: a #GFileAttributeValue.
232 * Clears the value of @attr and sets its type to
233 * %G_FILE_ATTRIBUTE_TYPE_INVALID.
237 _g_file_attribute_value_clear (GFileAttributeValue *attr)
239 g_return_if_fail (attr != NULL);
241 if (attr->type == G_FILE_ATTRIBUTE_TYPE_STRING ||
242 attr->type == G_FILE_ATTRIBUTE_TYPE_BYTE_STRING)
243 g_free (attr->u.string);
245 if (attr->type == G_FILE_ATTRIBUTE_TYPE_OBJECT &&
247 g_object_unref (attr->u.obj);
249 attr->type = G_FILE_ATTRIBUTE_TYPE_INVALID;
253 * g_file_attribute_value_set:
254 * @attr: a #GFileAttributeValue to set the value in.
255 * @new_value: a #GFileAttributeValue to get the value from.
257 * Sets an attribute's value from another attribute.
260 _g_file_attribute_value_set (GFileAttributeValue *attr,
261 const GFileAttributeValue *new_value)
263 g_return_if_fail (attr != NULL);
264 g_return_if_fail (new_value != NULL);
266 _g_file_attribute_value_clear (attr);
269 if (attr->type == G_FILE_ATTRIBUTE_TYPE_STRING ||
270 attr->type == G_FILE_ATTRIBUTE_TYPE_BYTE_STRING)
271 attr->u.string = g_strdup (attr->u.string);
273 if (attr->type == G_FILE_ATTRIBUTE_TYPE_OBJECT &&
275 g_object_ref (attr->u.obj);
279 * _g_file_attribute_value_new:
281 * Creates a new file attribute.
283 * Returns: a #GFileAttributeValue.
285 GFileAttributeValue *
286 _g_file_attribute_value_new (void)
288 GFileAttributeValue *attr;
290 attr = g_new (GFileAttributeValue, 1);
291 attr->type = G_FILE_ATTRIBUTE_TYPE_INVALID;
296 _g_file_attribute_value_peek_as_pointer (GFileAttributeValue *attr)
298 switch (attr->type) {
299 case G_FILE_ATTRIBUTE_TYPE_STRING:
300 case G_FILE_ATTRIBUTE_TYPE_BYTE_STRING:
301 return attr->u.string;
302 case G_FILE_ATTRIBUTE_TYPE_OBJECT:
305 return (gpointer) &attr->u;
310 * g_file_attribute_value_dup:
311 * @other: a #GFileAttributeValue to duplicate.
313 * Duplicates a file attribute.
315 * Returns: a duplicate of the @other.
317 GFileAttributeValue *
318 _g_file_attribute_value_dup (const GFileAttributeValue *other)
320 GFileAttributeValue *attr;
322 g_return_val_if_fail (other != NULL, NULL);
324 attr = g_new (GFileAttributeValue, 1);
325 attr->type = G_FILE_ATTRIBUTE_TYPE_INVALID;
326 _g_file_attribute_value_set (attr, other);
331 g_file_attribute_info_list_get_type (void)
333 static volatile gsize g_define_type_id__volatile = 0;
335 if (g_once_init_enter (&g_define_type_id__volatile))
337 GType g_define_type_id =
338 g_boxed_type_register_static (I_("GFileAttributeInfoList"),
339 (GBoxedCopyFunc) g_file_attribute_info_list_dup,
340 (GBoxedFreeFunc) g_file_attribute_info_list_unref);
342 g_once_init_leave (&g_define_type_id__volatile, g_define_type_id);
345 return g_define_type_id__volatile;
351 return c >= 32 && c <= 126 && c != '\\';
355 escape_byte_string (const char *str)
359 char *escaped_val, *p;
361 char *hex_digits = "0123456789abcdef";
366 for (i = 0; i < len; i++)
368 if (!valid_char (str[i]))
372 if (num_invalid == 0)
373 return g_strdup (str);
376 escaped_val = g_malloc (len + num_invalid*3 + 1);
379 for (i = 0; i < len; i++)
388 *p++ = hex_digits[(c >> 4) & 0xf];
389 *p++ = hex_digits[c & 0xf];
398 * g_file_attribute_value_as_string:
399 * @attr: a #GFileAttributeValue.
401 * Converts a #GFileAttributeValue to a string for display.
402 * The returned string should be freed when no longer needed.
404 * Returns: a string from the @attr, %NULL on error, or "<invalid>"
405 * if @attr is of type %G_FILE_ATTRIBUTE_TYPE_INVALID.
408 _g_file_attribute_value_as_string (const GFileAttributeValue *attr)
412 g_return_val_if_fail (attr != NULL, NULL);
416 case G_FILE_ATTRIBUTE_TYPE_STRING:
417 str = g_strdup (attr->u.string);
419 case G_FILE_ATTRIBUTE_TYPE_BYTE_STRING:
420 str = escape_byte_string (attr->u.string);
422 case G_FILE_ATTRIBUTE_TYPE_BOOLEAN:
423 str = g_strdup_printf ("%s", attr->u.boolean?"TRUE":"FALSE");
425 case G_FILE_ATTRIBUTE_TYPE_UINT32:
426 str = g_strdup_printf ("%u", (unsigned int)attr->u.uint32);
428 case G_FILE_ATTRIBUTE_TYPE_INT32:
429 str = g_strdup_printf ("%i", (int)attr->u.int32);
431 case G_FILE_ATTRIBUTE_TYPE_UINT64:
432 str = g_strdup_printf ("%"G_GUINT64_FORMAT, attr->u.uint64);
434 case G_FILE_ATTRIBUTE_TYPE_INT64:
435 str = g_strdup_printf ("%"G_GINT64_FORMAT, attr->u.int64);
437 case G_FILE_ATTRIBUTE_TYPE_OBJECT:
438 str = g_strdup_printf ("%s:%p", g_type_name_from_instance
439 ((GTypeInstance *) attr->u.obj),
443 g_warning ("Invalid type in GFileInfo attribute");
444 str = g_strdup ("<invalid>");
452 * g_file_attribute_value_get_string:
453 * @attr: a #GFileAttributeValue.
455 * Gets the string from a file attribute value. If the value is not the
456 * right type then %NULL will be returned.
458 * Returns: the string value contained within the attribute, or %NULL.
461 _g_file_attribute_value_get_string (const GFileAttributeValue *attr)
466 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_STRING, NULL);
468 return attr->u.string;
472 * g_file_attribute_value_get_byte_string:
473 * @attr: a #GFileAttributeValue.
475 * Gets the byte string from a file attribute value. If the value is not the
476 * right type then %NULL will be returned.
478 * Returns: the byte string contained within the attribute or %NULL.
481 _g_file_attribute_value_get_byte_string (const GFileAttributeValue *attr)
486 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_BYTE_STRING, NULL);
488 return attr->u.string;
492 * g_file_attribute_value_get_boolean:
493 * @attr: a #GFileAttributeValue.
495 * Gets the boolean value from a file attribute value. If the value is not the
496 * right type then %FALSE will be returned.
498 * Returns: the boolean value contained within the attribute, or %FALSE.
501 _g_file_attribute_value_get_boolean (const GFileAttributeValue *attr)
506 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_BOOLEAN, FALSE);
508 return attr->u.boolean;
512 * g_file_attribute_value_get_uint32:
513 * @attr: a #GFileAttributeValue.
515 * Gets the unsigned 32-bit integer from a file attribute value. If the value
516 * is not the right type then %0 will be returned.
518 * Returns: the unsigned 32-bit integer from the attribute, or %0.
521 _g_file_attribute_value_get_uint32 (const GFileAttributeValue *attr)
526 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_UINT32, 0);
528 return attr->u.uint32;
532 * g_file_attribute_value_get_int32:
533 * @attr: a #GFileAttributeValue.
535 * Gets the signed 32-bit integer from a file attribute value. If the value
536 * is not the right type then %0 will be returned.
538 * Returns: the signed 32-bit integer from the attribute, or %0.
541 _g_file_attribute_value_get_int32 (const GFileAttributeValue *attr)
546 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_INT32, 0);
548 return attr->u.int32;
552 * g_file_attribute_value_get_uint64:
553 * @attr: a #GFileAttributeValue.
555 * Gets the unsigned 64-bit integer from a file attribute value. If the value
556 * is not the right type then %0 will be returned.
558 * Returns: the unsigned 64-bit integer from the attribute, or %0.
561 _g_file_attribute_value_get_uint64 (const GFileAttributeValue *attr)
566 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_UINT64, 0);
568 return attr->u.uint64;
572 * g_file_attribute_value_get_int64:
573 * @attr: a #GFileAttributeValue.
575 * Gets the signed 64-bit integer from a file attribute value. If the value
576 * is not the right type then %0 will be returned.
578 * Returns: the signed 64-bit integer from the attribute, or %0.
581 _g_file_attribute_value_get_int64 (const GFileAttributeValue *attr)
586 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_INT64, 0);
588 return attr->u.int64;
592 * g_file_attribute_value_get_object:
593 * @attr: a #GFileAttributeValue.
595 * Gets the GObject from a file attribute value. If the value
596 * is not the right type then %NULL will be returned.
598 * Returns: the GObject from the attribute, or %0.
601 _g_file_attribute_value_get_object (const GFileAttributeValue *attr)
606 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_OBJECT, NULL);
613 _g_file_attribute_value_set_from_pointer (GFileAttributeValue *value,
614 GFileAttributeType type,
618 _g_file_attribute_value_clear (value);
622 case G_FILE_ATTRIBUTE_TYPE_STRING:
623 case G_FILE_ATTRIBUTE_TYPE_BYTE_STRING:
625 value->u.string = g_strdup (value_p);
627 value->u.string = value_p;
630 case G_FILE_ATTRIBUTE_TYPE_OBJECT:
632 value->u.obj = g_object_ref (value_p);
634 value->u.obj = value_p;
637 case G_FILE_ATTRIBUTE_TYPE_BOOLEAN:
638 value->u.boolean = *(gboolean *)value_p;
641 case G_FILE_ATTRIBUTE_TYPE_UINT32:
642 value->u.uint32 = *(guint32 *)value_p;
645 case G_FILE_ATTRIBUTE_TYPE_INT32:
646 value->u.int32 = *(gint32 *)value_p;
649 case G_FILE_ATTRIBUTE_TYPE_UINT64:
650 value->u.uint64 = *(guint64 *)value_p;
653 case G_FILE_ATTRIBUTE_TYPE_INT64:
654 value->u.int64 = *(gint64 *)value_p;
657 g_warning ("Unknown type specified in g_file_info_set_attribute\n");
663 * g_file_attribute_value_set_string:
664 * @attr: a #GFileAttributeValue.
665 * @string: a string to set within the type.
667 * Sets the attribute value to a given string.
671 _g_file_attribute_value_set_string (GFileAttributeValue *attr,
674 g_return_if_fail (attr != NULL);
675 g_return_if_fail (string != NULL);
677 _g_file_attribute_value_clear (attr);
678 attr->type = G_FILE_ATTRIBUTE_TYPE_STRING;
679 attr->u.string = g_strdup (string);
683 * g_file_attribute_value_set_byte_string:
684 * @attr: a #GFileAttributeValue.
685 * @string: a byte string to set within the type.
687 * Sets the attribute value to a given byte string.
691 _g_file_attribute_value_set_byte_string (GFileAttributeValue *attr,
694 g_return_if_fail (attr != NULL);
695 g_return_if_fail (string != NULL);
697 _g_file_attribute_value_clear (attr);
698 attr->type = G_FILE_ATTRIBUTE_TYPE_BYTE_STRING;
699 attr->u.string = g_strdup (string);
703 * g_file_attribute_value_set_boolean:
704 * @attr: a #GFileAttributeValue.
705 * @value: a #gboolean to set within the type.
707 * Sets the attribute value to the given boolean value.
711 _g_file_attribute_value_set_boolean (GFileAttributeValue *attr,
714 g_return_if_fail (attr != NULL);
716 _g_file_attribute_value_clear (attr);
717 attr->type = G_FILE_ATTRIBUTE_TYPE_BOOLEAN;
718 attr->u.boolean = !!value;
722 * g_file_attribute_value_set_uint32:
723 * @attr: a #GFileAttributeValue.
724 * @value: a #guint32 to set within the type.
726 * Sets the attribute value to the given unsigned 32-bit integer.
730 _g_file_attribute_value_set_uint32 (GFileAttributeValue *attr,
733 g_return_if_fail (attr != NULL);
735 _g_file_attribute_value_clear (attr);
736 attr->type = G_FILE_ATTRIBUTE_TYPE_UINT32;
737 attr->u.uint32 = value;
741 * g_file_attribute_value_set_int32:
742 * @attr: a #GFileAttributeValue.
743 * @value: a #gint32 to set within the type.
745 * Sets the attribute value to the given signed 32-bit integer.
749 _g_file_attribute_value_set_int32 (GFileAttributeValue *attr,
752 g_return_if_fail (attr != NULL);
754 _g_file_attribute_value_clear (attr);
755 attr->type = G_FILE_ATTRIBUTE_TYPE_INT32;
756 attr->u.int32 = value;
760 * g_file_attribute_value_set_uint64:
761 * @attr: a #GFileAttributeValue.
762 * @value: a #guint64 to set within the type.
764 * Sets the attribute value to a given unsigned 64-bit integer.
768 _g_file_attribute_value_set_uint64 (GFileAttributeValue *attr,
771 g_return_if_fail (attr != NULL);
773 _g_file_attribute_value_clear (attr);
774 attr->type = G_FILE_ATTRIBUTE_TYPE_UINT64;
775 attr->u.uint64 = value;
779 * g_file_attribute_value_set_int64:
780 * @attr: a #GFileAttributeValue.
781 * @value: a #gint64 to set within the type.
783 * Sets the attribute value to a given signed 64-bit integer.
787 _g_file_attribute_value_set_int64 (GFileAttributeValue *attr,
790 g_return_if_fail (attr != NULL);
792 _g_file_attribute_value_clear (attr);
793 attr->type = G_FILE_ATTRIBUTE_TYPE_INT64;
794 attr->u.int64 = value;
798 * g_file_attribute_value_set_object:
799 * @attr: a #GFileAttributeValue.
802 * Sets the attribute to contain the value @obj.
803 * The @attr references the GObject internally.
807 _g_file_attribute_value_set_object (GFileAttributeValue *attr,
810 g_return_if_fail (attr != NULL);
811 g_return_if_fail (obj != NULL);
813 _g_file_attribute_value_clear (attr);
814 attr->type = G_FILE_ATTRIBUTE_TYPE_OBJECT;
815 attr->u.obj = g_object_ref (obj);
819 GFileAttributeInfoList public;
822 } GFileAttributeInfoListPriv;
825 list_update_public (GFileAttributeInfoListPriv *priv)
827 priv->public.infos = (GFileAttributeInfo *)priv->array->data;
828 priv->public.n_infos = priv->array->len;
832 * g_file_attribute_info_list_new:
834 * Creates a new file attribute info list.
836 * Returns: a #GFileAttributeInfoList.
838 GFileAttributeInfoList *
839 g_file_attribute_info_list_new (void)
841 GFileAttributeInfoListPriv *priv;
843 priv = g_new0 (GFileAttributeInfoListPriv, 1);
846 priv->array = g_array_new (TRUE, FALSE, sizeof (GFileAttributeInfo));
848 list_update_public (priv);
850 return (GFileAttributeInfoList *)priv;
854 * g_file_attribute_info_list_dup:
855 * @list: a #GFileAttributeInfoList to duplicate.
857 * Makes a duplicate of a file attribute info list.
859 * Returns: a copy of the given @list.
861 GFileAttributeInfoList *
862 g_file_attribute_info_list_dup (GFileAttributeInfoList *list)
864 GFileAttributeInfoListPriv *new;
867 g_return_val_if_fail (list != NULL, NULL);
869 new = g_new0 (GFileAttributeInfoListPriv, 1);
871 new->array = g_array_new (TRUE, FALSE, sizeof (GFileAttributeInfo));
873 g_array_set_size (new->array, list->n_infos);
874 list_update_public (new);
875 for (i = 0; i < list->n_infos; i++)
877 new->public.infos[i].name = g_strdup (list->infos[i].name);
878 new->public.infos[i].type = list->infos[i].type;
879 new->public.infos[i].flags = list->infos[i].flags;
882 return (GFileAttributeInfoList *)new;
886 * g_file_attribute_info_list_ref:
887 * @list: a #GFileAttributeInfoList to reference.
889 * References a file attribute info list.
891 * Returns: #GFileAttributeInfoList or %NULL on error.
893 GFileAttributeInfoList *
894 g_file_attribute_info_list_ref (GFileAttributeInfoList *list)
896 GFileAttributeInfoListPriv *priv = (GFileAttributeInfoListPriv *)list;
898 g_return_val_if_fail (list != NULL, NULL);
899 g_return_val_if_fail (priv->ref_count > 0, NULL);
901 g_atomic_int_inc (&priv->ref_count);
907 * g_file_attribute_info_list_unref:
908 * @list: The #GFileAttributeInfoList to unreference.
910 * Removes a reference from the given @list. If the reference count
911 * falls to zero, the @list is deleted.
914 g_file_attribute_info_list_unref (GFileAttributeInfoList *list)
916 GFileAttributeInfoListPriv *priv = (GFileAttributeInfoListPriv *)list;
919 g_return_if_fail (list != NULL);
920 g_return_if_fail (priv->ref_count > 0);
922 if (g_atomic_int_dec_and_test (&priv->ref_count))
924 for (i = 0; i < list->n_infos; i++)
925 g_free (list->infos[i].name);
926 g_array_free (priv->array, TRUE);
931 g_file_attribute_info_list_bsearch (GFileAttributeInfoList *list,
941 mid = start + (end - start) / 2;
943 if (strcmp (name, list->infos[mid].name) < 0)
945 else if (strcmp (name, list->infos[mid].name) > 0)
954 * g_file_attribute_info_list_lookup:
955 * @list: a #GFileAttributeInfoList.
956 * @name: the name of the attribute to lookup.
958 * Gets the file attribute with the name @name from @list.
960 * Returns: a #GFileAttributeInfo for the @name, or %NULL if an
961 * attribute isn't found.
963 const GFileAttributeInfo *
964 g_file_attribute_info_list_lookup (GFileAttributeInfoList *list,
969 g_return_val_if_fail (list != NULL, NULL);
970 g_return_val_if_fail (name != NULL, NULL);
972 i = g_file_attribute_info_list_bsearch (list, name);
974 if (i < list->n_infos && strcmp (list->infos[i].name, name) == 0)
975 return &list->infos[i];
981 * g_file_attribute_info_list_add:
982 * @list: a #GFileAttributeInfoList.
983 * @name: the name of the attribute to add.
984 * @type: the #GFileAttributeType for the attribute.
985 * @flags: #GFileAttributeInfoFlags for the attribute.
987 * Adds a new attribute with @name to the @list, setting
988 * its @type and @flags.
991 g_file_attribute_info_list_add (GFileAttributeInfoList *list,
993 GFileAttributeType type,
994 GFileAttributeInfoFlags flags)
996 GFileAttributeInfoListPriv *priv = (GFileAttributeInfoListPriv *)list;
997 GFileAttributeInfo info;
1000 g_return_if_fail (list != NULL);
1001 g_return_if_fail (name != NULL);
1003 i = g_file_attribute_info_list_bsearch (list, name);
1005 if (i < list->n_infos && strcmp (list->infos[i].name, name) == 0)
1007 list->infos[i].type = type;
1011 info.name = g_strdup (name);
1014 g_array_insert_vals (priv->array, i, &info, 1);
1016 list_update_public (priv);
1019 #define __G_FILE_ATTRIBUTE_C__
1020 #include "gioaliasdef.c"