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_ALLOCATED_SIZE</entry><entry>standard::allocated-size</entry><entry>uint64</entry></row>
152 * <row><entry>%G_FILE_ATTRIBUTE_STANDARD_SYMLINK_TARGET</entry><entry>standard::symlink-target</entry><entry>byte string</entry></row>
153 * <row><entry>%G_FILE_ATTRIBUTE_STANDARD_TARGET_URI</entry><entry>standard::target-uri</entry><entry>string</entry></row>
154 * <row><entry>%G_FILE_ATTRIBUTE_STANDARD_SORT_ORDER</entry><entry>standard::sort-order</entry><entry>int32</entry></row>
155 * <row><entry>%G_FILE_ATTRIBUTE_ETAG_VALUE</entry><entry>etag::value</entry><entry>string</entry></row>
156 * <row><entry>%G_FILE_ATTRIBUTE_ID_FILE</entry><entry>id::file</entry><entry>string</entry></row>
157 * <row><entry>%G_FILE_ATTRIBUTE_ID_FILESYSTEM</entry><entry>id::filesystem</entry><entry>string</entry></row>
158 * <row><entry>%G_FILE_ATTRIBUTE_ACCESS_CAN_READ</entry><entry>access::can-read</entry><entry>boolean</entry></row>
159 * <row><entry>%G_FILE_ATTRIBUTE_ACCESS_CAN_WRITE</entry><entry>access::can-write</entry><entry>boolean</entry></row>
160 * <row><entry>%G_FILE_ATTRIBUTE_ACCESS_CAN_EXECUTE</entry><entry>access::can-execute</entry><entry>boolean</entry></row>
161 * <row><entry>%G_FILE_ATTRIBUTE_ACCESS_CAN_DELETE</entry><entry>access::can-delete</entry><entry>boolean</entry></row>
162 * <row><entry>%G_FILE_ATTRIBUTE_ACCESS_CAN_TRASH</entry><entry>access::can-trash</entry><entry>boolean</entry></row>
163 * <row><entry>%G_FILE_ATTRIBUTE_ACCESS_CAN_RENAME</entry><entry>access::can-rename</entry><entry>boolean</entry></row>
164 * <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_CAN_MOUNT</entry><entry>mountable::can-mount</entry><entry>boolean</entry></row>
165 * <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_CAN_UNMOUNT</entry><entry>mountable::can-unmount</entry><entry>boolean</entry></row>
166 * <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_CAN_EJECT</entry><entry>mountable::can-eject</entry><entry>boolean</entry></row>
167 * <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_UNIX_DEVICE</entry><entry>mountable::unix-device</entry><entry>uint32</entry></row>
168 * <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_HAL_UDI</entry><entry>mountable::hal-udi</entry><entry>string</entry></row>
169 * <row><entry>%G_FILE_ATTRIBUTE_TIME_MODIFIED</entry><entry>time::modified</entry><entry>uint64</entry></row>
170 * <row><entry>%G_FILE_ATTRIBUTE_TIME_MODIFIED_USEC</entry><entry>time::modified-usec</entry><entry>uint32</entry></row>
171 * <row><entry>%G_FILE_ATTRIBUTE_TIME_ACCESS</entry><entry>time::access</entry><entry>uint64</entry></row>
172 * <row><entry>%G_FILE_ATTRIBUTE_TIME_ACCESS_USEC</entry><entry>time::access-usec</entry><entry>uint32</entry></row>
173 * <row><entry>%G_FILE_ATTRIBUTE_TIME_CHANGED</entry><entry>time::changed</entry><entry>uint64</entry></row>
174 * <row><entry>%G_FILE_ATTRIBUTE_TIME_CHANGED_USEC</entry><entry>time::changed-usec</entry><entry>uint32</entry></row>
175 * <row><entry>%G_FILE_ATTRIBUTE_TIME_CREATED</entry><entry>time::created</entry><entry>uint64</entry></row>
176 * <row><entry>%G_FILE_ATTRIBUTE_TIME_CREATED_USEC</entry><entry>time::created-usec</entry><entry>uint32</entry></row>
177 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_DEVICE</entry><entry>unix::device</entry><entry>uint32</entry></row>
178 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_INODE</entry><entry>unix::inode</entry><entry>uint64</entry></row>
179 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_MODE</entry><entry>unix::mode</entry><entry>uint32</entry></row>
180 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_NLINK</entry><entry>unix::nlink</entry><entry>uint32</entry></row>
181 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_UID</entry><entry>unix::uid</entry><entry>uint32</entry></row>
182 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_GID</entry><entry>unix::gid</entry><entry>uint32</entry></row>
183 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_RDEV</entry><entry>unix::rdev</entry><entry>uint32</entry></row>
184 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_BLOCK_SIZE</entry><entry>unix::block-size</entry><entry>uint32</entry></row>
185 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_BLOCKS</entry><entry>unix::blocks</entry><entry>uint64</entry></row>
186 * <row><entry>%G_FILE_ATTRIBUTE_UNIX_IS_MOUNTPOINT</entry><entry>unix::is-mountpoint</entry><entry>boolean</entry></row>
187 * <row><entry>%G_FILE_ATTRIBUTE_DOS_IS_ARCHIVE</entry><entry>dos::is-archive</entry><entry>boolean</entry></row>
188 * <row><entry>%G_FILE_ATTRIBUTE_DOS_IS_SYSTEM</entry><entry>dos::is-system</entry><entry>boolean</entry></row>
189 * <row><entry>%G_FILE_ATTRIBUTE_OWNER_USER</entry><entry>owner::user</entry><entry>string</entry></row>
190 * <row><entry>%G_FILE_ATTRIBUTE_OWNER_USER_REAL</entry><entry>owner::user-real</entry><entry>string</entry></row>
191 * <row><entry>%G_FILE_ATTRIBUTE_OWNER_GROUP</entry><entry>owner::group</entry><entry>string</entry></row>
192 * <row><entry>%G_FILE_ATTRIBUTE_THUMBNAIL_PATH</entry><entry>thumbnail::path</entry><entry>bytestring</entry></row>
193 * <row><entry>%G_FILE_ATTRIBUTE_THUMBNAILING_FAILED</entry><entry>thumbnail::failed</entry><entry>boolean</entry></row>
194 * <row><entry>%G_FILE_ATTRIBUTE_PREVIEW_ICON</entry><entry>preview::icon</entry><entry>object (#GIcon)</entry></row>
195 * <row><entry>%G_FILE_ATTRIBUTE_FILESYSTEM_SIZE</entry><entry>filesystem::size</entry><entry>uint64</entry></row>
196 * <row><entry>%G_FILE_ATTRIBUTE_FILESYSTEM_FREE</entry><entry>filesystem::free</entry><entry>uint64</entry></row>
197 * <row><entry>%G_FILE_ATTRIBUTE_FILESYSTEM_TYPE</entry><entry>filesystem::type</entry><entry>string</entry></row>
198 * <row><entry>%G_FILE_ATTRIBUTE_FILESYSTEM_READONLY</entry><entry>filesystem::readonly</entry><entry>boolean</entry></row>
199 * <row><entry>%G_FILE_ATTRIBUTE_GVFS_BACKEND</entry><entry>gvfs::backend</entry><entry>string</entry></row>
200 * <row><entry>%G_FILE_ATTRIBUTE_SELINUX_CONTEXT</entry><entry>selinux::context</entry><entry>string</entry></row>
201 * </tbody></tgroup></table></para>
203 * Note that there are no predefined keys in the "xattr" and "xattr-sys"
204 * namespaces. Keys for the "xattr" namespace are constructed by stripping
205 * away the "user." prefix from the extended user attribute, and prepending
206 * "xattr::". Keys for the "xattr-sys" namespace are constructed by
207 * concatenating "xattr-sys::" with the extended attribute name. All extended
208 * attribute values are returned as hex-encoded strings in which bytes outside
209 * the ASCII range are encoded as hexadecimal escape sequences of the form
210 * \x<replaceable>nn</replaceable>.
214 * _g_file_attribute_value_free:
215 * @attr: a #GFileAttributeValue.
217 * Frees the memory used by @attr.
221 _g_file_attribute_value_free (GFileAttributeValue *attr)
223 g_return_if_fail (attr != NULL);
225 _g_file_attribute_value_clear (attr);
230 * _g_file_attribute_value_clear:
231 * @attr: a #GFileAttributeValue.
233 * Clears the value of @attr and sets its type to
234 * %G_FILE_ATTRIBUTE_TYPE_INVALID.
238 _g_file_attribute_value_clear (GFileAttributeValue *attr)
240 g_return_if_fail (attr != NULL);
242 if (attr->type == G_FILE_ATTRIBUTE_TYPE_STRING ||
243 attr->type == G_FILE_ATTRIBUTE_TYPE_BYTE_STRING)
244 g_free (attr->u.string);
246 if (attr->type == G_FILE_ATTRIBUTE_TYPE_STRINGV)
247 g_strfreev (attr->u.stringv);
249 if (attr->type == G_FILE_ATTRIBUTE_TYPE_OBJECT &&
251 g_object_unref (attr->u.obj);
253 attr->type = G_FILE_ATTRIBUTE_TYPE_INVALID;
257 * g_file_attribute_value_set:
258 * @attr: a #GFileAttributeValue to set the value in.
259 * @new_value: a #GFileAttributeValue to get the value from.
261 * Sets an attribute's value from another attribute.
264 _g_file_attribute_value_set (GFileAttributeValue *attr,
265 const GFileAttributeValue *new_value)
267 g_return_if_fail (attr != NULL);
268 g_return_if_fail (new_value != NULL);
270 _g_file_attribute_value_clear (attr);
273 if (attr->type == G_FILE_ATTRIBUTE_TYPE_STRING ||
274 attr->type == G_FILE_ATTRIBUTE_TYPE_BYTE_STRING)
275 attr->u.string = g_strdup (attr->u.string);
277 if (attr->type == G_FILE_ATTRIBUTE_TYPE_STRINGV)
278 attr->u.stringv = g_strdupv (attr->u.stringv);
280 if (attr->type == G_FILE_ATTRIBUTE_TYPE_OBJECT &&
282 g_object_ref (attr->u.obj);
286 * _g_file_attribute_value_new:
288 * Creates a new file attribute.
290 * Returns: a #GFileAttributeValue.
292 GFileAttributeValue *
293 _g_file_attribute_value_new (void)
295 GFileAttributeValue *attr;
297 attr = g_new (GFileAttributeValue, 1);
298 attr->type = G_FILE_ATTRIBUTE_TYPE_INVALID;
303 _g_file_attribute_value_peek_as_pointer (GFileAttributeValue *attr)
305 switch (attr->type) {
306 case G_FILE_ATTRIBUTE_TYPE_STRING:
307 case G_FILE_ATTRIBUTE_TYPE_BYTE_STRING:
308 return attr->u.string;
309 case G_FILE_ATTRIBUTE_TYPE_STRINGV:
310 return attr->u.stringv;
311 case G_FILE_ATTRIBUTE_TYPE_OBJECT:
314 return (gpointer) &attr->u;
319 * g_file_attribute_value_dup:
320 * @other: a #GFileAttributeValue to duplicate.
322 * Duplicates a file attribute.
324 * Returns: a duplicate of the @other.
326 GFileAttributeValue *
327 _g_file_attribute_value_dup (const GFileAttributeValue *other)
329 GFileAttributeValue *attr;
331 g_return_val_if_fail (other != NULL, NULL);
333 attr = g_new (GFileAttributeValue, 1);
334 attr->type = G_FILE_ATTRIBUTE_TYPE_INVALID;
335 _g_file_attribute_value_set (attr, other);
340 g_file_attribute_info_list_get_type (void)
342 static volatile gsize g_define_type_id__volatile = 0;
344 if (g_once_init_enter (&g_define_type_id__volatile))
346 GType g_define_type_id =
347 g_boxed_type_register_static (I_("GFileAttributeInfoList"),
348 (GBoxedCopyFunc) g_file_attribute_info_list_dup,
349 (GBoxedFreeFunc) g_file_attribute_info_list_unref);
351 g_once_init_leave (&g_define_type_id__volatile, g_define_type_id);
354 return g_define_type_id__volatile;
360 return c >= 32 && c <= 126 && c != '\\';
364 escape_byte_string (const char *str)
368 char *escaped_val, *p;
370 const char hex_digits[] = "0123456789abcdef";
375 for (i = 0; i < len; i++)
377 if (!valid_char (str[i]))
381 if (num_invalid == 0)
382 return g_strdup (str);
385 escaped_val = g_malloc (len + num_invalid*3 + 1);
388 for (i = 0; i < len; i++)
397 *p++ = hex_digits[(c >> 4) & 0xf];
398 *p++ = hex_digits[c & 0xf];
407 * _g_file_attribute_value_as_string:
408 * @attr: a #GFileAttributeValue.
410 * Converts a #GFileAttributeValue to a string for display.
411 * The returned string should be freed when no longer needed.
413 * Returns: a string from the @attr, %NULL on error, or "<invalid>"
414 * if @attr is of type %G_FILE_ATTRIBUTE_TYPE_INVALID.
417 _g_file_attribute_value_as_string (const GFileAttributeValue *attr)
423 g_return_val_if_fail (attr != NULL, NULL);
427 case G_FILE_ATTRIBUTE_TYPE_STRING:
428 str = g_strdup (attr->u.string);
430 case G_FILE_ATTRIBUTE_TYPE_STRINGV:
431 s = g_string_new ("[");
432 for (i = 0; attr->u.stringv[i] != NULL; i++)
434 g_string_append (s, attr->u.stringv[i]);
435 if (attr->u.stringv[i+1] != NULL)
436 g_string_append (s, ", ");
438 g_string_append (s, "]");
439 str = g_string_free (s, FALSE);
441 case G_FILE_ATTRIBUTE_TYPE_BYTE_STRING:
442 str = escape_byte_string (attr->u.string);
444 case G_FILE_ATTRIBUTE_TYPE_BOOLEAN:
445 str = g_strdup_printf ("%s", attr->u.boolean?"TRUE":"FALSE");
447 case G_FILE_ATTRIBUTE_TYPE_UINT32:
448 str = g_strdup_printf ("%u", (unsigned int)attr->u.uint32);
450 case G_FILE_ATTRIBUTE_TYPE_INT32:
451 str = g_strdup_printf ("%i", (int)attr->u.int32);
453 case G_FILE_ATTRIBUTE_TYPE_UINT64:
454 str = g_strdup_printf ("%"G_GUINT64_FORMAT, attr->u.uint64);
456 case G_FILE_ATTRIBUTE_TYPE_INT64:
457 str = g_strdup_printf ("%"G_GINT64_FORMAT, attr->u.int64);
459 case G_FILE_ATTRIBUTE_TYPE_OBJECT:
460 str = g_strdup_printf ("%s:%p", g_type_name_from_instance
461 ((GTypeInstance *) attr->u.obj),
464 case G_FILE_ATTRIBUTE_TYPE_INVALID:
465 str = g_strdup ("<unset>");
468 g_warning ("Invalid type in GFileInfo attribute");
469 str = g_strdup ("<invalid>");
477 * _g_file_attribute_value_get_string:
478 * @attr: a #GFileAttributeValue.
480 * Gets the string from a file attribute value. If the value is not the
481 * right type then %NULL will be returned.
483 * Returns: the string value contained within the attribute, or %NULL.
486 _g_file_attribute_value_get_string (const GFileAttributeValue *attr)
491 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_STRING, NULL);
493 return attr->u.string;
497 * _g_file_attribute_value_get_byte_string:
498 * @attr: a #GFileAttributeValue.
500 * Gets the byte string from a file attribute value. If the value is not the
501 * right type then %NULL will be returned.
503 * Returns: the byte string contained within the attribute or %NULL.
506 _g_file_attribute_value_get_byte_string (const GFileAttributeValue *attr)
511 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_BYTE_STRING, NULL);
513 return attr->u.string;
517 _g_file_attribute_value_get_stringv (const GFileAttributeValue *attr)
522 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_STRINGV, NULL);
524 return attr->u.stringv;
528 * _g_file_attribute_value_get_boolean:
529 * @attr: a #GFileAttributeValue.
531 * Gets the boolean value from a file attribute value. If the value is not the
532 * right type then %FALSE will be returned.
534 * Returns: the boolean value contained within the attribute, or %FALSE.
537 _g_file_attribute_value_get_boolean (const GFileAttributeValue *attr)
542 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_BOOLEAN, FALSE);
544 return attr->u.boolean;
548 * _g_file_attribute_value_get_uint32:
549 * @attr: a #GFileAttributeValue.
551 * Gets the unsigned 32-bit integer from a file attribute value. If the value
552 * is not the right type then 0 will be returned.
554 * Returns: the unsigned 32-bit integer from the attribute, or 0.
557 _g_file_attribute_value_get_uint32 (const GFileAttributeValue *attr)
562 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_UINT32, 0);
564 return attr->u.uint32;
568 * _g_file_attribute_value_get_int32:
569 * @attr: a #GFileAttributeValue.
571 * Gets the signed 32-bit integer from a file attribute value. If the value
572 * is not the right type then 0 will be returned.
574 * Returns: the signed 32-bit integer from the attribute, or 0.
577 _g_file_attribute_value_get_int32 (const GFileAttributeValue *attr)
582 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_INT32, 0);
584 return attr->u.int32;
588 * _g_file_attribute_value_get_uint64:
589 * @attr: a #GFileAttributeValue.
591 * Gets the unsigned 64-bit integer from a file attribute value. If the value
592 * is not the right type then 0 will be returned.
594 * Returns: the unsigned 64-bit integer from the attribute, or 0.
597 _g_file_attribute_value_get_uint64 (const GFileAttributeValue *attr)
602 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_UINT64, 0);
604 return attr->u.uint64;
608 * _g_file_attribute_value_get_int64:
609 * @attr: a #GFileAttributeValue.
611 * Gets the signed 64-bit integer from a file attribute value. If the value
612 * is not the right type then 0 will be returned.
614 * Returns: the signed 64-bit integer from the attribute, or 0.
617 _g_file_attribute_value_get_int64 (const GFileAttributeValue *attr)
622 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_INT64, 0);
624 return attr->u.int64;
628 * _g_file_attribute_value_get_object:
629 * @attr: a #GFileAttributeValue.
631 * Gets the GObject from a file attribute value. If the value
632 * is not the right type then %NULL will be returned.
634 * Returns: the GObject from the attribute, or %NULL.
637 _g_file_attribute_value_get_object (const GFileAttributeValue *attr)
642 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_OBJECT, NULL);
649 _g_file_attribute_value_set_from_pointer (GFileAttributeValue *value,
650 GFileAttributeType type,
654 _g_file_attribute_value_clear (value);
658 case G_FILE_ATTRIBUTE_TYPE_STRING:
659 case G_FILE_ATTRIBUTE_TYPE_BYTE_STRING:
661 value->u.string = g_strdup (value_p);
663 value->u.string = value_p;
666 case G_FILE_ATTRIBUTE_TYPE_STRINGV:
668 value->u.stringv = g_strdupv (value_p);
670 value->u.stringv = value_p;
673 case G_FILE_ATTRIBUTE_TYPE_OBJECT:
675 value->u.obj = g_object_ref (value_p);
677 value->u.obj = value_p;
680 case G_FILE_ATTRIBUTE_TYPE_BOOLEAN:
681 value->u.boolean = *(gboolean *)value_p;
684 case G_FILE_ATTRIBUTE_TYPE_UINT32:
685 value->u.uint32 = *(guint32 *)value_p;
688 case G_FILE_ATTRIBUTE_TYPE_INT32:
689 value->u.int32 = *(gint32 *)value_p;
692 case G_FILE_ATTRIBUTE_TYPE_UINT64:
693 value->u.uint64 = *(guint64 *)value_p;
696 case G_FILE_ATTRIBUTE_TYPE_INT64:
697 value->u.int64 = *(gint64 *)value_p;
700 case G_FILE_ATTRIBUTE_TYPE_INVALID:
704 g_warning ("Unknown type specified in g_file_info_set_attribute\n");
710 * _g_file_attribute_value_set_string:
711 * @attr: a #GFileAttributeValue.
712 * @string: a string to set within the type.
714 * Sets the attribute value to a given string.
717 _g_file_attribute_value_set_string (GFileAttributeValue *attr,
720 g_return_if_fail (attr != NULL);
721 g_return_if_fail (string != NULL);
723 _g_file_attribute_value_clear (attr);
724 attr->type = G_FILE_ATTRIBUTE_TYPE_STRING;
725 attr->u.string = g_strdup (string);
729 * _g_file_attribute_value_set_byte_string:
730 * @attr: a #GFileAttributeValue.
731 * @string: a byte string to set within the type.
733 * Sets the attribute value to a given byte string.
736 _g_file_attribute_value_set_byte_string (GFileAttributeValue *attr,
739 g_return_if_fail (attr != NULL);
740 g_return_if_fail (string != NULL);
742 _g_file_attribute_value_clear (attr);
743 attr->type = G_FILE_ATTRIBUTE_TYPE_BYTE_STRING;
744 attr->u.string = g_strdup (string);
748 _g_file_attribute_value_set_stringv (GFileAttributeValue *attr,
751 g_return_if_fail (attr != NULL);
752 g_return_if_fail (value != NULL);
754 _g_file_attribute_value_clear (attr);
755 attr->type = G_FILE_ATTRIBUTE_TYPE_STRINGV;
756 attr->u.stringv = g_strdupv (value);
761 * _g_file_attribute_value_set_boolean:
762 * @attr: a #GFileAttributeValue.
763 * @value: a #gboolean to set within the type.
765 * Sets the attribute value to the given boolean value.
768 _g_file_attribute_value_set_boolean (GFileAttributeValue *attr,
771 g_return_if_fail (attr != NULL);
773 _g_file_attribute_value_clear (attr);
774 attr->type = G_FILE_ATTRIBUTE_TYPE_BOOLEAN;
775 attr->u.boolean = !!value;
779 * _g_file_attribute_value_set_uint32:
780 * @attr: a #GFileAttributeValue.
781 * @value: a #guint32 to set within the type.
783 * Sets the attribute value to the given unsigned 32-bit integer.
786 _g_file_attribute_value_set_uint32 (GFileAttributeValue *attr,
789 g_return_if_fail (attr != NULL);
791 _g_file_attribute_value_clear (attr);
792 attr->type = G_FILE_ATTRIBUTE_TYPE_UINT32;
793 attr->u.uint32 = value;
797 * _g_file_attribute_value_set_int32:
798 * @attr: a #GFileAttributeValue.
799 * @value: a #gint32 to set within the type.
801 * Sets the attribute value to the given signed 32-bit integer.
804 _g_file_attribute_value_set_int32 (GFileAttributeValue *attr,
807 g_return_if_fail (attr != NULL);
809 _g_file_attribute_value_clear (attr);
810 attr->type = G_FILE_ATTRIBUTE_TYPE_INT32;
811 attr->u.int32 = value;
815 * _g_file_attribute_value_set_uint64:
816 * @attr: a #GFileAttributeValue.
817 * @value: a #guint64 to set within the type.
819 * Sets the attribute value to a given unsigned 64-bit integer.
822 _g_file_attribute_value_set_uint64 (GFileAttributeValue *attr,
825 g_return_if_fail (attr != NULL);
827 _g_file_attribute_value_clear (attr);
828 attr->type = G_FILE_ATTRIBUTE_TYPE_UINT64;
829 attr->u.uint64 = value;
833 * _g_file_attribute_value_set_int64:
834 * @attr: a #GFileAttributeValue.
835 * @value: a #gint64 to set within the type.
837 * Sets the attribute value to a given signed 64-bit integer.
840 _g_file_attribute_value_set_int64 (GFileAttributeValue *attr,
843 g_return_if_fail (attr != NULL);
845 _g_file_attribute_value_clear (attr);
846 attr->type = G_FILE_ATTRIBUTE_TYPE_INT64;
847 attr->u.int64 = value;
851 * _g_file_attribute_value_set_object:
852 * @attr: a #GFileAttributeValue.
855 * Sets the attribute to contain the value @obj.
856 * The @attr references the GObject internally.
859 _g_file_attribute_value_set_object (GFileAttributeValue *attr,
862 g_return_if_fail (attr != NULL);
863 g_return_if_fail (obj != NULL);
865 _g_file_attribute_value_clear (attr);
866 attr->type = G_FILE_ATTRIBUTE_TYPE_OBJECT;
867 attr->u.obj = g_object_ref (obj);
871 GFileAttributeInfoList public;
874 } GFileAttributeInfoListPriv;
877 list_update_public (GFileAttributeInfoListPriv *priv)
879 priv->public.infos = (GFileAttributeInfo *)priv->array->data;
880 priv->public.n_infos = priv->array->len;
884 * g_file_attribute_info_list_new:
886 * Creates a new file attribute info list.
888 * Returns: a #GFileAttributeInfoList.
890 GFileAttributeInfoList *
891 g_file_attribute_info_list_new (void)
893 GFileAttributeInfoListPriv *priv;
895 priv = g_new0 (GFileAttributeInfoListPriv, 1);
898 priv->array = g_array_new (TRUE, FALSE, sizeof (GFileAttributeInfo));
900 list_update_public (priv);
902 return (GFileAttributeInfoList *)priv;
906 * g_file_attribute_info_list_dup:
907 * @list: a #GFileAttributeInfoList to duplicate.
909 * Makes a duplicate of a file attribute info list.
911 * Returns: a copy of the given @list.
913 GFileAttributeInfoList *
914 g_file_attribute_info_list_dup (GFileAttributeInfoList *list)
916 GFileAttributeInfoListPriv *new;
919 g_return_val_if_fail (list != NULL, NULL);
921 new = g_new0 (GFileAttributeInfoListPriv, 1);
923 new->array = g_array_new (TRUE, FALSE, sizeof (GFileAttributeInfo));
925 g_array_set_size (new->array, list->n_infos);
926 list_update_public (new);
927 for (i = 0; i < list->n_infos; i++)
929 new->public.infos[i].name = g_strdup (list->infos[i].name);
930 new->public.infos[i].type = list->infos[i].type;
931 new->public.infos[i].flags = list->infos[i].flags;
934 return (GFileAttributeInfoList *)new;
938 * g_file_attribute_info_list_ref:
939 * @list: a #GFileAttributeInfoList to reference.
941 * References a file attribute info list.
943 * Returns: #GFileAttributeInfoList or %NULL on error.
945 GFileAttributeInfoList *
946 g_file_attribute_info_list_ref (GFileAttributeInfoList *list)
948 GFileAttributeInfoListPriv *priv = (GFileAttributeInfoListPriv *)list;
950 g_return_val_if_fail (list != NULL, NULL);
951 g_return_val_if_fail (priv->ref_count > 0, NULL);
953 g_atomic_int_inc (&priv->ref_count);
959 * g_file_attribute_info_list_unref:
960 * @list: The #GFileAttributeInfoList to unreference.
962 * Removes a reference from the given @list. If the reference count
963 * falls to zero, the @list is deleted.
966 g_file_attribute_info_list_unref (GFileAttributeInfoList *list)
968 GFileAttributeInfoListPriv *priv = (GFileAttributeInfoListPriv *)list;
971 g_return_if_fail (list != NULL);
972 g_return_if_fail (priv->ref_count > 0);
974 if (g_atomic_int_dec_and_test (&priv->ref_count))
976 for (i = 0; i < list->n_infos; i++)
977 g_free (list->infos[i].name);
978 g_array_free (priv->array, TRUE);
983 g_file_attribute_info_list_bsearch (GFileAttributeInfoList *list,
993 mid = start + (end - start) / 2;
995 if (strcmp (name, list->infos[mid].name) < 0)
997 else if (strcmp (name, list->infos[mid].name) > 0)
1006 * g_file_attribute_info_list_lookup:
1007 * @list: a #GFileAttributeInfoList.
1008 * @name: the name of the attribute to lookup.
1010 * Gets the file attribute with the name @name from @list.
1012 * Returns: a #GFileAttributeInfo for the @name, or %NULL if an
1013 * attribute isn't found.
1015 const GFileAttributeInfo *
1016 g_file_attribute_info_list_lookup (GFileAttributeInfoList *list,
1021 g_return_val_if_fail (list != NULL, NULL);
1022 g_return_val_if_fail (name != NULL, NULL);
1024 i = g_file_attribute_info_list_bsearch (list, name);
1026 if (i < list->n_infos && strcmp (list->infos[i].name, name) == 0)
1027 return &list->infos[i];
1033 * g_file_attribute_info_list_add:
1034 * @list: a #GFileAttributeInfoList.
1035 * @name: the name of the attribute to add.
1036 * @type: the #GFileAttributeType for the attribute.
1037 * @flags: #GFileAttributeInfoFlags for the attribute.
1039 * Adds a new attribute with @name to the @list, setting
1040 * its @type and @flags.
1043 g_file_attribute_info_list_add (GFileAttributeInfoList *list,
1045 GFileAttributeType type,
1046 GFileAttributeInfoFlags flags)
1048 GFileAttributeInfoListPriv *priv = (GFileAttributeInfoListPriv *)list;
1049 GFileAttributeInfo info;
1052 g_return_if_fail (list != NULL);
1053 g_return_if_fail (name != NULL);
1055 i = g_file_attribute_info_list_bsearch (list, name);
1057 if (i < list->n_infos && strcmp (list->infos[i].name, name) == 0)
1059 list->infos[i].type = type;
1063 info.name = g_strdup (name);
1066 g_array_insert_vals (priv->array, i, &info, 1);
1068 list_update_public (priv);
1071 #define __G_FILE_ATTRIBUTE_C__
1072 #include "gioaliasdef.c"