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, see <http://www.gnu.org/licenses/>.
18 * Author: Alexander Larsson <alexl@redhat.com>
25 #include "gfileattribute.h"
26 #include "gfileattribute-priv.h"
27 #include <glib-object.h>
32 * SECTION:gfileattribute
33 * @short_description: Key-Value Paired File Attributes
35 * @see_also: #GFile, #GFileInfo
37 * File attributes in GIO consist of a list of key-value pairs.
39 * Keys are strings that contain a key namespace and a key name, separated
40 * by a colon, e.g. "namespace::keyname". Namespaces are included to sort
41 * key-value pairs by namespaces for relevance. Keys can be retrived
42 * using wildcards, e.g. "standard::*" will return all of the keys in the
43 * "standard" namespace.
45 * The list of possible attributes for a filesystem (pointed to by a #GFile) is
46 * available as a #GFileAttributeInfoList. This list is queryable by key names
47 * as indicated earlier.
49 * Information is stored within the list in #GFileAttributeInfo structures.
50 * The info structure can store different types, listed in the enum
51 * #GFileAttributeType. Upon creation of a #GFileAttributeInfo, the type will
52 * be set to %G_FILE_ATTRIBUTE_TYPE_INVALID.
54 * Classes that implement #GFileIface will create a #GFileAttributeInfoList and
55 * install default keys and values for their given file system, architecture,
56 * and other possible implementation details (e.g., on a UNIX system, a file
57 * attribute key will be registered for the user id for a given file).
59 * ## Default Namespaces
61 * - `"standard"`: The "Standard" namespace. General file information that
62 * any application may need should be put in this namespace. Examples
63 * include the file's name, type, and size.
64 * - `"etag`: The [Entity Tag][gfile-etag] namespace. Currently, the only key
65 * in this namespace is "value", which contains the value of the current
67 * - `"id"`: The "Identification" namespace. This namespace is used by file
68 * managers and applications that list directories to check for loops and
69 * to uniquely identify files.
70 * - `"access"`: The "Access" namespace. Used to check if a user has the
71 * proper privileges to access files and perform file operations. Keys in
72 * this namespace are made to be generic and easily understood, e.g. the
73 * "can_read" key is %TRUE if the current user has permission to read the
74 * file. UNIX permissions and NTFS ACLs in Windows should be mapped to
76 * - `"mountable"`: The "Mountable" namespace. Includes simple boolean keys
77 * for checking if a file or path supports mount operations, e.g. mount,
78 * unmount, eject. These are used for files of type %G_FILE_TYPE_MOUNTABLE.
79 * - `"time"`: The "Time" namespace. Includes file access, changed, created
81 * - `"unix"`: The "Unix" namespace. Includes UNIX-specific information and
82 * may not be available for all files. Examples include the UNIX "UID",
84 * - `"dos"`: The "DOS" namespace. Includes DOS-specific information and may
85 * not be available for all files. Examples include "is_system" for checking
86 * if a file is marked as a system file, and "is_archive" for checking if a
87 * file is marked as an archive file.
88 * - `"owner"`: The "Owner" namespace. Includes information about who owns a
89 * file. May not be available for all file systems. Examples include "user"
90 * for getting the user name of the file owner. This information is often
91 * mapped from some backend specific data such as a UNIX UID.
92 * - `"thumbnail"`: The "Thumbnail" namespace. Includes information about file
93 * thumbnails and their location within the file system. Examples of keys in
94 * this namespace include "path" to get the location of a thumbnail, "failed"
95 * to check if thumbnailing of the file failed, and "is-valid" to check if
96 * the thumbnail is outdated.
97 * - `"filesystem"`: The "Filesystem" namespace. Gets information about the
98 * file system where a file is located, such as its type, how much space is
99 * left available, and the overall size of the file system.
100 * - `"gvfs"`: The "GVFS" namespace. Keys in this namespace contain information
101 * about the current GVFS backend in use.
102 * - `"xattr"`: The "xattr" namespace. Gets information about extended
103 * user attributes. See attr(5). The "user." prefix of the extended user
104 * attribute name is stripped away when constructing keys in this namespace,
105 * e.g. "xattr::mime_type" for the extended attribute with the name
106 * "user.mime_type". Note that this information is only available if
107 * GLib has been built with extended attribute support.
108 * - `"xattr-sys"`: The "xattr-sys" namespace. Gets information about
109 * extended attributes which are not user-specific. See attr(5). Note
110 * that this information is only available if GLib has been built with
111 * extended attribute support.
112 * - `"selinux"`: The "SELinux" namespace. Includes information about the
113 * SELinux context of files. Note that this information is only available
114 * if GLib has been built with SELinux support.
116 * Please note that these are not all of the possible namespaces.
117 * More namespaces can be added from GIO modules or by individual applications.
118 * For more information about writing GIO modules, see #GIOModule.
120 * <!-- TODO: Implementation note about using extended attributes on supported
125 * For a list of the built-in keys and their types, see the
126 * [GFileInfo][GFileInfo] documentation.
128 * Note that there are no predefined keys in the "xattr" and "xattr-sys"
129 * namespaces. Keys for the "xattr" namespace are constructed by stripping
130 * away the "user." prefix from the extended user attribute, and prepending
131 * "xattr::". Keys for the "xattr-sys" namespace are constructed by
132 * concatenating "xattr-sys::" with the extended attribute name. All extended
133 * attribute values are returned as hex-encoded strings in which bytes outside
134 * the ASCII range are encoded as escape sequences of the form \x`nn`
135 * where `nn` is a 2-digit hexadecimal number.
139 * _g_file_attribute_value_free:
140 * @attr: a #GFileAttributeValue.
142 * Frees the memory used by @attr.
146 _g_file_attribute_value_free (GFileAttributeValue *attr)
148 g_return_if_fail (attr != NULL);
150 _g_file_attribute_value_clear (attr);
155 * _g_file_attribute_value_clear:
156 * @attr: a #GFileAttributeValue.
158 * Clears the value of @attr and sets its type to
159 * %G_FILE_ATTRIBUTE_TYPE_INVALID.
163 _g_file_attribute_value_clear (GFileAttributeValue *attr)
165 g_return_if_fail (attr != NULL);
167 if (attr->type == G_FILE_ATTRIBUTE_TYPE_STRING ||
168 attr->type == G_FILE_ATTRIBUTE_TYPE_BYTE_STRING)
169 g_free (attr->u.string);
171 if (attr->type == G_FILE_ATTRIBUTE_TYPE_STRINGV)
172 g_strfreev (attr->u.stringv);
174 if (attr->type == G_FILE_ATTRIBUTE_TYPE_OBJECT &&
176 g_object_unref (attr->u.obj);
178 attr->type = G_FILE_ATTRIBUTE_TYPE_INVALID;
182 * g_file_attribute_value_set:
183 * @attr: a #GFileAttributeValue to set the value in.
184 * @new_value: a #GFileAttributeValue to get the value from.
186 * Sets an attribute's value from another attribute.
189 _g_file_attribute_value_set (GFileAttributeValue *attr,
190 const GFileAttributeValue *new_value)
192 g_return_if_fail (attr != NULL);
193 g_return_if_fail (new_value != NULL);
195 _g_file_attribute_value_clear (attr);
198 if (attr->type == G_FILE_ATTRIBUTE_TYPE_STRING ||
199 attr->type == G_FILE_ATTRIBUTE_TYPE_BYTE_STRING)
200 attr->u.string = g_strdup (attr->u.string);
202 if (attr->type == G_FILE_ATTRIBUTE_TYPE_STRINGV)
203 attr->u.stringv = g_strdupv (attr->u.stringv);
205 if (attr->type == G_FILE_ATTRIBUTE_TYPE_OBJECT &&
207 g_object_ref (attr->u.obj);
211 * _g_file_attribute_value_new:
213 * Creates a new file attribute.
215 * Returns: a #GFileAttributeValue.
217 GFileAttributeValue *
218 _g_file_attribute_value_new (void)
220 GFileAttributeValue *attr;
222 attr = g_new (GFileAttributeValue, 1);
223 attr->type = G_FILE_ATTRIBUTE_TYPE_INVALID;
228 _g_file_attribute_value_peek_as_pointer (GFileAttributeValue *attr)
230 switch (attr->type) {
231 case G_FILE_ATTRIBUTE_TYPE_STRING:
232 case G_FILE_ATTRIBUTE_TYPE_BYTE_STRING:
233 return attr->u.string;
234 case G_FILE_ATTRIBUTE_TYPE_STRINGV:
235 return attr->u.stringv;
236 case G_FILE_ATTRIBUTE_TYPE_OBJECT:
239 return (gpointer) &attr->u;
244 * g_file_attribute_value_dup:
245 * @other: a #GFileAttributeValue to duplicate.
247 * Duplicates a file attribute.
249 * Returns: a duplicate of the @other.
251 GFileAttributeValue *
252 _g_file_attribute_value_dup (const GFileAttributeValue *other)
254 GFileAttributeValue *attr;
256 g_return_val_if_fail (other != NULL, NULL);
258 attr = g_new (GFileAttributeValue, 1);
259 attr->type = G_FILE_ATTRIBUTE_TYPE_INVALID;
260 _g_file_attribute_value_set (attr, other);
264 G_DEFINE_BOXED_TYPE (GFileAttributeInfoList, g_file_attribute_info_list,
265 g_file_attribute_info_list_dup,
266 g_file_attribute_info_list_unref)
271 return c >= 32 && c <= 126 && c != '\\';
275 escape_byte_string (const char *str)
279 char *escaped_val, *p;
281 const char hex_digits[] = "0123456789abcdef";
286 for (i = 0; i < len; i++)
288 if (!valid_char (str[i]))
292 if (num_invalid == 0)
293 return g_strdup (str);
296 escaped_val = g_malloc (len + num_invalid*3 + 1);
299 for (i = 0; i < len; i++)
308 *p++ = hex_digits[(c >> 4) & 0xf];
309 *p++ = hex_digits[c & 0xf];
318 * _g_file_attribute_value_as_string:
319 * @attr: a #GFileAttributeValue.
321 * Converts a #GFileAttributeValue to a string for display.
322 * The returned string should be freed when no longer needed.
324 * Returns: a string from the @attr, %NULL on error, or "<invalid>"
325 * if @attr is of type %G_FILE_ATTRIBUTE_TYPE_INVALID.
328 _g_file_attribute_value_as_string (const GFileAttributeValue *attr)
334 g_return_val_if_fail (attr != NULL, NULL);
338 case G_FILE_ATTRIBUTE_TYPE_STRING:
339 str = g_strdup (attr->u.string);
341 case G_FILE_ATTRIBUTE_TYPE_STRINGV:
342 s = g_string_new ("[");
343 for (i = 0; attr->u.stringv[i] != NULL; i++)
345 g_string_append (s, attr->u.stringv[i]);
346 if (attr->u.stringv[i+1] != NULL)
347 g_string_append (s, ", ");
349 g_string_append (s, "]");
350 str = g_string_free (s, FALSE);
352 case G_FILE_ATTRIBUTE_TYPE_BYTE_STRING:
353 str = escape_byte_string (attr->u.string);
355 case G_FILE_ATTRIBUTE_TYPE_BOOLEAN:
356 str = g_strdup_printf ("%s", attr->u.boolean?"TRUE":"FALSE");
358 case G_FILE_ATTRIBUTE_TYPE_UINT32:
359 str = g_strdup_printf ("%u", (unsigned int)attr->u.uint32);
361 case G_FILE_ATTRIBUTE_TYPE_INT32:
362 str = g_strdup_printf ("%i", (int)attr->u.int32);
364 case G_FILE_ATTRIBUTE_TYPE_UINT64:
365 str = g_strdup_printf ("%"G_GUINT64_FORMAT, attr->u.uint64);
367 case G_FILE_ATTRIBUTE_TYPE_INT64:
368 str = g_strdup_printf ("%"G_GINT64_FORMAT, attr->u.int64);
370 case G_FILE_ATTRIBUTE_TYPE_OBJECT:
371 str = g_strdup_printf ("%s:%p", g_type_name_from_instance
372 ((GTypeInstance *) attr->u.obj),
375 case G_FILE_ATTRIBUTE_TYPE_INVALID:
376 str = g_strdup ("<unset>");
379 g_warning ("Invalid type in GFileInfo attribute");
380 str = g_strdup ("<invalid>");
388 * _g_file_attribute_value_get_string:
389 * @attr: a #GFileAttributeValue.
391 * Gets the string from a file attribute value. If the value is not the
392 * right type then %NULL will be returned.
394 * Returns: the UTF-8 string value contained within the attribute, or %NULL.
397 _g_file_attribute_value_get_string (const GFileAttributeValue *attr)
402 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_STRING, NULL);
404 return attr->u.string;
408 * _g_file_attribute_value_get_byte_string:
409 * @attr: a #GFileAttributeValue.
411 * Gets the byte string from a file attribute value. If the value is not the
412 * right type then %NULL will be returned.
414 * Returns: the byte string contained within the attribute or %NULL.
417 _g_file_attribute_value_get_byte_string (const GFileAttributeValue *attr)
422 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_BYTE_STRING, NULL);
424 return attr->u.string;
428 _g_file_attribute_value_get_stringv (const GFileAttributeValue *attr)
433 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_STRINGV, NULL);
435 return attr->u.stringv;
439 * _g_file_attribute_value_get_boolean:
440 * @attr: a #GFileAttributeValue.
442 * Gets the boolean value from a file attribute value. If the value is not the
443 * right type then %FALSE will be returned.
445 * Returns: the boolean value contained within the attribute, or %FALSE.
448 _g_file_attribute_value_get_boolean (const GFileAttributeValue *attr)
453 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_BOOLEAN, FALSE);
455 return attr->u.boolean;
459 * _g_file_attribute_value_get_uint32:
460 * @attr: a #GFileAttributeValue.
462 * Gets the unsigned 32-bit integer from a file attribute value. If the value
463 * is not the right type then 0 will be returned.
465 * Returns: the unsigned 32-bit integer from the attribute, or 0.
468 _g_file_attribute_value_get_uint32 (const GFileAttributeValue *attr)
473 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_UINT32, 0);
475 return attr->u.uint32;
479 * _g_file_attribute_value_get_int32:
480 * @attr: a #GFileAttributeValue.
482 * Gets the signed 32-bit integer from a file attribute value. If the value
483 * is not the right type then 0 will be returned.
485 * Returns: the signed 32-bit integer from the attribute, or 0.
488 _g_file_attribute_value_get_int32 (const GFileAttributeValue *attr)
493 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_INT32, 0);
495 return attr->u.int32;
499 * _g_file_attribute_value_get_uint64:
500 * @attr: a #GFileAttributeValue.
502 * Gets the unsigned 64-bit integer from a file attribute value. If the value
503 * is not the right type then 0 will be returned.
505 * Returns: the unsigned 64-bit integer from the attribute, or 0.
508 _g_file_attribute_value_get_uint64 (const GFileAttributeValue *attr)
513 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_UINT64, 0);
515 return attr->u.uint64;
519 * _g_file_attribute_value_get_int64:
520 * @attr: a #GFileAttributeValue.
522 * Gets the signed 64-bit integer from a file attribute value. If the value
523 * is not the right type then 0 will be returned.
525 * Returns: the signed 64-bit integer from the attribute, or 0.
528 _g_file_attribute_value_get_int64 (const GFileAttributeValue *attr)
533 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_INT64, 0);
535 return attr->u.int64;
539 * _g_file_attribute_value_get_object:
540 * @attr: a #GFileAttributeValue.
542 * Gets the GObject from a file attribute value. If the value
543 * is not the right type then %NULL will be returned.
545 * Returns: the GObject from the attribute, or %NULL.
548 _g_file_attribute_value_get_object (const GFileAttributeValue *attr)
553 g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_OBJECT, NULL);
560 _g_file_attribute_value_set_from_pointer (GFileAttributeValue *value,
561 GFileAttributeType type,
565 _g_file_attribute_value_clear (value);
569 case G_FILE_ATTRIBUTE_TYPE_STRING:
570 case G_FILE_ATTRIBUTE_TYPE_BYTE_STRING:
572 value->u.string = g_strdup (value_p);
574 value->u.string = value_p;
577 case G_FILE_ATTRIBUTE_TYPE_STRINGV:
579 value->u.stringv = g_strdupv (value_p);
581 value->u.stringv = value_p;
584 case G_FILE_ATTRIBUTE_TYPE_OBJECT:
586 value->u.obj = g_object_ref (value_p);
588 value->u.obj = value_p;
591 case G_FILE_ATTRIBUTE_TYPE_BOOLEAN:
592 value->u.boolean = *(gboolean *)value_p;
595 case G_FILE_ATTRIBUTE_TYPE_UINT32:
596 value->u.uint32 = *(guint32 *)value_p;
599 case G_FILE_ATTRIBUTE_TYPE_INT32:
600 value->u.int32 = *(gint32 *)value_p;
603 case G_FILE_ATTRIBUTE_TYPE_UINT64:
604 value->u.uint64 = *(guint64 *)value_p;
607 case G_FILE_ATTRIBUTE_TYPE_INT64:
608 value->u.int64 = *(gint64 *)value_p;
611 case G_FILE_ATTRIBUTE_TYPE_INVALID:
615 g_warning ("Unknown type specified in g_file_info_set_attribute\n");
621 * _g_file_attribute_value_set_string:
622 * @attr: a #GFileAttributeValue.
623 * @string: a UTF-8 string to set within the type.
625 * Sets the attribute value to a given UTF-8 string.
628 _g_file_attribute_value_set_string (GFileAttributeValue *attr,
631 g_return_if_fail (attr != NULL);
632 g_return_if_fail (string != NULL);
634 _g_file_attribute_value_clear (attr);
635 attr->type = G_FILE_ATTRIBUTE_TYPE_STRING;
636 attr->u.string = g_strdup (string);
640 * _g_file_attribute_value_set_byte_string:
641 * @attr: a #GFileAttributeValue.
642 * @string: a byte string to set within the type.
644 * Sets the attribute value to a given byte string.
647 _g_file_attribute_value_set_byte_string (GFileAttributeValue *attr,
650 g_return_if_fail (attr != NULL);
651 g_return_if_fail (string != NULL);
653 _g_file_attribute_value_clear (attr);
654 attr->type = G_FILE_ATTRIBUTE_TYPE_BYTE_STRING;
655 attr->u.string = g_strdup (string);
659 _g_file_attribute_value_set_stringv (GFileAttributeValue *attr,
662 g_return_if_fail (attr != NULL);
663 g_return_if_fail (value != NULL);
665 _g_file_attribute_value_clear (attr);
666 attr->type = G_FILE_ATTRIBUTE_TYPE_STRINGV;
667 attr->u.stringv = g_strdupv (value);
672 * _g_file_attribute_value_set_boolean:
673 * @attr: a #GFileAttributeValue.
674 * @value: a #gboolean to set within the type.
676 * Sets the attribute value to the given boolean value.
679 _g_file_attribute_value_set_boolean (GFileAttributeValue *attr,
682 g_return_if_fail (attr != NULL);
684 _g_file_attribute_value_clear (attr);
685 attr->type = G_FILE_ATTRIBUTE_TYPE_BOOLEAN;
686 attr->u.boolean = !!value;
690 * _g_file_attribute_value_set_uint32:
691 * @attr: a #GFileAttributeValue.
692 * @value: a #guint32 to set within the type.
694 * Sets the attribute value to the given unsigned 32-bit integer.
697 _g_file_attribute_value_set_uint32 (GFileAttributeValue *attr,
700 g_return_if_fail (attr != NULL);
702 _g_file_attribute_value_clear (attr);
703 attr->type = G_FILE_ATTRIBUTE_TYPE_UINT32;
704 attr->u.uint32 = value;
708 * _g_file_attribute_value_set_int32:
709 * @attr: a #GFileAttributeValue.
710 * @value: a #gint32 to set within the type.
712 * Sets the attribute value to the given signed 32-bit integer.
715 _g_file_attribute_value_set_int32 (GFileAttributeValue *attr,
718 g_return_if_fail (attr != NULL);
720 _g_file_attribute_value_clear (attr);
721 attr->type = G_FILE_ATTRIBUTE_TYPE_INT32;
722 attr->u.int32 = value;
726 * _g_file_attribute_value_set_uint64:
727 * @attr: a #GFileAttributeValue.
728 * @value: a #guint64 to set within the type.
730 * Sets the attribute value to a given unsigned 64-bit integer.
733 _g_file_attribute_value_set_uint64 (GFileAttributeValue *attr,
736 g_return_if_fail (attr != NULL);
738 _g_file_attribute_value_clear (attr);
739 attr->type = G_FILE_ATTRIBUTE_TYPE_UINT64;
740 attr->u.uint64 = value;
744 * _g_file_attribute_value_set_int64:
745 * @attr: a #GFileAttributeValue.
746 * @value: a #gint64 to set within the type.
748 * Sets the attribute value to a given signed 64-bit integer.
751 _g_file_attribute_value_set_int64 (GFileAttributeValue *attr,
754 g_return_if_fail (attr != NULL);
756 _g_file_attribute_value_clear (attr);
757 attr->type = G_FILE_ATTRIBUTE_TYPE_INT64;
758 attr->u.int64 = value;
762 * _g_file_attribute_value_set_object:
763 * @attr: a #GFileAttributeValue.
766 * Sets the attribute to contain the value @obj.
767 * The @attr references the GObject internally.
770 _g_file_attribute_value_set_object (GFileAttributeValue *attr,
773 g_return_if_fail (attr != NULL);
774 g_return_if_fail (obj != NULL);
776 _g_file_attribute_value_clear (attr);
777 attr->type = G_FILE_ATTRIBUTE_TYPE_OBJECT;
778 attr->u.obj = g_object_ref (obj);
782 GFileAttributeInfoList public;
785 } GFileAttributeInfoListPriv;
788 list_update_public (GFileAttributeInfoListPriv *priv)
790 priv->public.infos = (GFileAttributeInfo *)priv->array->data;
791 priv->public.n_infos = priv->array->len;
795 * g_file_attribute_info_list_new:
797 * Creates a new file attribute info list.
799 * Returns: a #GFileAttributeInfoList.
801 GFileAttributeInfoList *
802 g_file_attribute_info_list_new (void)
804 GFileAttributeInfoListPriv *priv;
806 priv = g_new0 (GFileAttributeInfoListPriv, 1);
809 priv->array = g_array_new (TRUE, FALSE, sizeof (GFileAttributeInfo));
811 list_update_public (priv);
813 return (GFileAttributeInfoList *)priv;
817 * g_file_attribute_info_list_dup:
818 * @list: a #GFileAttributeInfoList to duplicate.
820 * Makes a duplicate of a file attribute info list.
822 * Returns: a copy of the given @list.
824 GFileAttributeInfoList *
825 g_file_attribute_info_list_dup (GFileAttributeInfoList *list)
827 GFileAttributeInfoListPriv *new;
830 g_return_val_if_fail (list != NULL, NULL);
832 new = g_new0 (GFileAttributeInfoListPriv, 1);
834 new->array = g_array_new (TRUE, FALSE, sizeof (GFileAttributeInfo));
836 g_array_set_size (new->array, list->n_infos);
837 list_update_public (new);
838 for (i = 0; i < list->n_infos; i++)
840 new->public.infos[i].name = g_strdup (list->infos[i].name);
841 new->public.infos[i].type = list->infos[i].type;
842 new->public.infos[i].flags = list->infos[i].flags;
845 return (GFileAttributeInfoList *)new;
849 * g_file_attribute_info_list_ref:
850 * @list: a #GFileAttributeInfoList to reference.
852 * References a file attribute info list.
854 * Returns: #GFileAttributeInfoList or %NULL on error.
856 GFileAttributeInfoList *
857 g_file_attribute_info_list_ref (GFileAttributeInfoList *list)
859 GFileAttributeInfoListPriv *priv = (GFileAttributeInfoListPriv *)list;
861 g_return_val_if_fail (list != NULL, NULL);
862 g_return_val_if_fail (priv->ref_count > 0, NULL);
864 g_atomic_int_inc (&priv->ref_count);
870 * g_file_attribute_info_list_unref:
871 * @list: The #GFileAttributeInfoList to unreference.
873 * Removes a reference from the given @list. If the reference count
874 * falls to zero, the @list is deleted.
877 g_file_attribute_info_list_unref (GFileAttributeInfoList *list)
879 GFileAttributeInfoListPriv *priv = (GFileAttributeInfoListPriv *)list;
882 g_return_if_fail (list != NULL);
883 g_return_if_fail (priv->ref_count > 0);
885 if (g_atomic_int_dec_and_test (&priv->ref_count))
887 for (i = 0; i < list->n_infos; i++)
888 g_free (list->infos[i].name);
889 g_array_free (priv->array, TRUE);
895 g_file_attribute_info_list_bsearch (GFileAttributeInfoList *list,
905 mid = start + (end - start) / 2;
907 if (strcmp (name, list->infos[mid].name) < 0)
909 else if (strcmp (name, list->infos[mid].name) > 0)
918 * g_file_attribute_info_list_lookup:
919 * @list: a #GFileAttributeInfoList.
920 * @name: the name of the attribute to lookup.
922 * Gets the file attribute with the name @name from @list.
924 * Returns: a #GFileAttributeInfo for the @name, or %NULL if an
925 * attribute isn't found.
927 const GFileAttributeInfo *
928 g_file_attribute_info_list_lookup (GFileAttributeInfoList *list,
933 g_return_val_if_fail (list != NULL, NULL);
934 g_return_val_if_fail (name != NULL, NULL);
936 i = g_file_attribute_info_list_bsearch (list, name);
938 if (i < list->n_infos && strcmp (list->infos[i].name, name) == 0)
939 return &list->infos[i];
945 * g_file_attribute_info_list_add:
946 * @list: a #GFileAttributeInfoList.
947 * @name: the name of the attribute to add.
948 * @type: the #GFileAttributeType for the attribute.
949 * @flags: #GFileAttributeInfoFlags for the attribute.
951 * Adds a new attribute with @name to the @list, setting
952 * its @type and @flags.
955 g_file_attribute_info_list_add (GFileAttributeInfoList *list,
957 GFileAttributeType type,
958 GFileAttributeInfoFlags flags)
960 GFileAttributeInfoListPriv *priv = (GFileAttributeInfoListPriv *)list;
961 GFileAttributeInfo info;
964 g_return_if_fail (list != NULL);
965 g_return_if_fail (name != NULL);
967 i = g_file_attribute_info_list_bsearch (list, name);
969 if (i < list->n_infos && strcmp (list->infos[i].name, name) == 0)
971 list->infos[i].type = type;
975 info.name = g_strdup (name);
978 g_array_insert_vals (priv->array, i, &info, 1);
980 list_update_public (priv);