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1058 lines
35 KiB
C
1058 lines
35 KiB
C
/* GIO - GLib Input, Output and Streaming Library
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*
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* Copyright (C) 2006-2007 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Author: Alexander Larsson <alexl@redhat.com>
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*/
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#include "config.h"
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#include <string.h>
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#include "gfileattribute.h"
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#include "gfileattribute-priv.h"
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#include <glib-object.h>
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#include "glibintl.h"
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/**
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* SECTION:gfileattribute
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* @short_description: Key-Value Paired File Attributes
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* @include: gio/gio.h
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* @see_also: #GFile, #GFileInfo
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*
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* File attributes in GIO consist of a list of key-value pairs.
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*
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* Keys are strings that contain a key namespace and a key name, separated
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* by a colon, e.g. "namespace:keyname". Namespaces are included to sort
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* key-value pairs by namespaces for relevance. Keys can be retrived
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* using wildcards, e.g. "standard::*" will return all of the keys in the
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* "standard" namespace.
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*
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* The list of possible attributes for a filesystem (pointed to by a #GFile) is
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* available as a #GFileAttributeInfoList. This list is queryable by key names
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* as indicated earlier.
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*
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* Information is stored within the list in #GFileAttributeInfo structures.
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* The info structure can store different types, listed in the enum
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* #GFileAttributeType. Upon creation of a #GFileAttributeInfo, the type will
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* be set to %G_FILE_ATTRIBUTE_TYPE_INVALID.
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*
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* Classes that implement #GFileIface will create a #GFileAttributeInfoList and
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* install default keys and values for their given file system, architecture,
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* and other possible implementation details (e.g., on a UNIX system, a file
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* attribute key will be registered for the user id for a given file).
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*
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* <para>
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* <table>
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* <title>GFileAttributes Default Namespaces</title>
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* <tgroup cols='2' align='left'><thead>
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* <row><entry>Namspace</entry><entry>Description</entry></row>
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* </thead>
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* <tbody>
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* <row><entry>"standard"</entry><entry>The "Standard" namespace. General file
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* information that any application may need should be put in this namespace.
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* Examples include the file's name, type, and size.</entry></row>
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* <row><entry>"etag"</entry><entry>The <link linkend="gfile-etag">"Entity Tag"</link>
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* namespace. Currently, the only key in this namespace is "value", which contains
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* the value of the current entity tag.</entry></row>
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* <row><entry>"id"</entry><entry>The "Identification" namespace. This
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* namespace is used by file managers and applications that list directories
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* to check for loops and to uniquely identify files.</entry></row>
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* <row><entry>"access"</entry><entry>The "Access" namespace. Used to check
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* if a user has the proper privilidges to access files and perform
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* file operations. Keys in this namespace are made to be generic
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* and easily understood, e.g. the "can_read" key is %TRUE if
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* the current user has permission to read the file. UNIX permissions and
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* NTFS ACLs in Windows should be mapped to these values.</entry></row>
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* <row><entry>"mountable"</entry><entry>The "Mountable" namespace. Includes
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* simple boolean keys for checking if a file or path supports mount operations, e.g.
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* mount, unmount, eject. These are used for files of type %G_FILE_TYPE_MOUNTABLE.</entry></row>
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* <row><entry>"time"</entry><entry>The "Time" namespace. Includes file
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* access, changed, created times. </entry></row>
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* <row><entry>"unix"</entry><entry>The "Unix" namespace. Includes UNIX-specific
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* information and may not be available for all files. Examples include
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* the UNIX "UID", "GID", etc.</entry></row>
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* <row><entry>"dos"</entry><entry>The "DOS" namespace. Includes DOS-specific
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* information and may not be available for all files. Examples include
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* "is_system" for checking if a file is marked as a system file, and "is_archive"
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* for checking if a file is marked as an archive file.</entry></row>
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* <row><entry>"owner"</entry><entry>The "Owner" namespace. Includes information
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* about who owns a file. May not be available for all file systems. Examples include
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* "user" for getting the user name of the file owner. This information is often mapped from
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* some backend specific data such as a unix UID.</entry></row>
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* <row><entry>"thumbnail"</entry><entry>The "Thumbnail" namespace. Includes
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* information about file thumbnails and their location within the file system. Examples of
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* keys in this namespace include "path" to get the location of a thumbnail, and "failed"
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* to check if thumbnailing of the file failed.</entry></row>
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* <row><entry>"filesystem"</entry><entry>The "Filesystem" namespace. Gets information
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* about the file system where a file is located, such as its type, how much
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* space is left available, and the overall size of the file system.</entry></row>
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* <row><entry>"gvfs"</entry><entry>The "GVFS" namespace. Keys in this namespace
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* contain information about the current GVFS backend in use. </entry></row>
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* <row><entry>"xattr"</entry><entry>The "xattr" namespace. Gets information
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* about extended user attributes. See attr(5). The "user." prefix of the
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* extended user attribute name is stripped away when constructing keys in
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* this namespace, e.g. "xattr::mime_type" for the extended attribute with
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* the name "user.mime_type". Note that this information is only available
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* if GLib has been built with extended attribute support.</entry></row>
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* <row><entry>"xattr-sys"</entry><entry>The "xattr-sys" namespace.
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* Gets information about extended attributes which are not user-specific.
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* See attr(5). Note that this information is only available if GLib
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* has been built with extended attribute support.</entry></row>
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* <row><entry>"selinux"</entry><entry>The "SELinux" namespace. Includes
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* information about the SELinux context of files. Note that this information
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* is only available if GLib has been built with SELinux support.</entry></row>
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* </tbody>
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* </tgroup>
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* </table>
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* </para>
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*
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* Please note that these are not all of the possible namespaces.
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* More namespaces can be added from GIO modules or by individual applications.
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* For more information about writing GIO modules, see #GIOModule.
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*
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* <!-- TODO: Implementation note about using extended attributes on supported
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* file systems -->
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*
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* <para><table>
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* <title>GFileAttributes Built-in Keys and Value Types</title>
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* <tgroup cols='3' align='left'><thead>
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* <row><entry>Enum Value</entry><entry>Namespace:Key</entry><entry>Value Type</entry></row>
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* </thead><tbody>
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* <row><entry>%G_FILE_ATTRIBUTE_STANDARD_TYPE</entry><entry>standard::type</entry><entry>uint32 (#GFileType)</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_STANDARD_IS_HIDDEN</entry><entry>standard::is-hidden</entry><entry>boolean</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_STANDARD_IS_BACKUP</entry><entry>standard::is-backup</entry><entry>boolean</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_STANDARD_IS_SYMLINK</entry><entry>standard::is-symlink</entry><entry>boolean</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_STANDARD_IS_VIRTUAL</entry><entry>standard::is-virtual</entry><entry>boolean</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_STANDARD_NAME</entry><entry>standard::name</entry><entry>byte string</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME</entry><entry>standard::display-name</entry><entry>string</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_STANDARD_EDIT_NAME</entry><entry>standard::edit-name</entry><entry>string</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_STANDARD_ICON</entry><entry>standard::icon</entry><entry>object (#GIcon)</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE</entry><entry>standard::content-type</entry><entry>string</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_STANDARD_FAST_CONTENT_TYPE</entry><entry>standard::fast-content-type</entry><entry>string</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_STANDARD_SIZE</entry><entry>standard::size</entry><entry>uint64</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_STANDARD_ALLOCATED_SIZE</entry><entry>standard::allocated-size</entry><entry>uint64</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_STANDARD_SYMLINK_TARGET</entry><entry>standard::symlink-target</entry><entry>byte string</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_STANDARD_TARGET_URI</entry><entry>standard::target-uri</entry><entry>string</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_STANDARD_SORT_ORDER</entry><entry>standard::sort-order</entry><entry>int32</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_ETAG_VALUE</entry><entry>etag::value</entry><entry>string</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_ID_FILE</entry><entry>id::file</entry><entry>string</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_ID_FILESYSTEM</entry><entry>id::filesystem</entry><entry>string</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_ACCESS_CAN_READ</entry><entry>access::can-read</entry><entry>boolean</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_ACCESS_CAN_WRITE</entry><entry>access::can-write</entry><entry>boolean</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_ACCESS_CAN_EXECUTE</entry><entry>access::can-execute</entry><entry>boolean</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_ACCESS_CAN_DELETE</entry><entry>access::can-delete</entry><entry>boolean</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_ACCESS_CAN_TRASH</entry><entry>access::can-trash</entry><entry>boolean</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_ACCESS_CAN_RENAME</entry><entry>access::can-rename</entry><entry>boolean</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_CAN_MOUNT</entry><entry>mountable::can-mount</entry><entry>boolean</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_CAN_UNMOUNT</entry><entry>mountable::can-unmount</entry><entry>boolean</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_CAN_EJECT</entry><entry>mountable::can-eject</entry><entry>boolean</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_UNIX_DEVICE</entry><entry>mountable::unix-device</entry><entry>uint32</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_UNIX_DEVICE_FILE</entry><entry>mountable::unix-device-file</entry><entry>string</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_HAL_UDI</entry><entry>mountable::hal-udi</entry><entry>string</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_TIME_MODIFIED</entry><entry>time::modified</entry><entry>uint64</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_TIME_MODIFIED_USEC</entry><entry>time::modified-usec</entry><entry>uint32</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_TIME_ACCESS</entry><entry>time::access</entry><entry>uint64</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_TIME_ACCESS_USEC</entry><entry>time::access-usec</entry><entry>uint32</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_TIME_CHANGED</entry><entry>time::changed</entry><entry>uint64</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_TIME_CHANGED_USEC</entry><entry>time::changed-usec</entry><entry>uint32</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_TIME_CREATED</entry><entry>time::created</entry><entry>uint64</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_TIME_CREATED_USEC</entry><entry>time::created-usec</entry><entry>uint32</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_UNIX_DEVICE</entry><entry>unix::device</entry><entry>uint32</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_UNIX_INODE</entry><entry>unix::inode</entry><entry>uint64</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_UNIX_MODE</entry><entry>unix::mode</entry><entry>uint32</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_UNIX_NLINK</entry><entry>unix::nlink</entry><entry>uint32</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_UNIX_UID</entry><entry>unix::uid</entry><entry>uint32</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_UNIX_GID</entry><entry>unix::gid</entry><entry>uint32</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_UNIX_RDEV</entry><entry>unix::rdev</entry><entry>uint32</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_UNIX_BLOCK_SIZE</entry><entry>unix::block-size</entry><entry>uint32</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_UNIX_BLOCKS</entry><entry>unix::blocks</entry><entry>uint64</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_UNIX_IS_MOUNTPOINT</entry><entry>unix::is-mountpoint</entry><entry>boolean</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_DOS_IS_ARCHIVE</entry><entry>dos::is-archive</entry><entry>boolean</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_DOS_IS_SYSTEM</entry><entry>dos::is-system</entry><entry>boolean</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_OWNER_USER</entry><entry>owner::user</entry><entry>string</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_OWNER_USER_REAL</entry><entry>owner::user-real</entry><entry>string</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_OWNER_GROUP</entry><entry>owner::group</entry><entry>string</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_THUMBNAIL_PATH</entry><entry>thumbnail::path</entry><entry>bytestring</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_THUMBNAILING_FAILED</entry><entry>thumbnail::failed</entry><entry>boolean</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_PREVIEW_ICON</entry><entry>preview::icon</entry><entry>object (#GIcon)</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_FILESYSTEM_SIZE</entry><entry>filesystem::size</entry><entry>uint64</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_FILESYSTEM_FREE</entry><entry>filesystem::free</entry><entry>uint64</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_FILESYSTEM_USED</entry><entry>filesystem::used</entry><entry>uint64</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_FILESYSTEM_TYPE</entry><entry>filesystem::type</entry><entry>string</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_FILESYSTEM_READONLY</entry><entry>filesystem::readonly</entry><entry>boolean</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_GVFS_BACKEND</entry><entry>gvfs::backend</entry><entry>string</entry></row>
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* <row><entry>%G_FILE_ATTRIBUTE_SELINUX_CONTEXT</entry><entry>selinux::context</entry><entry>string</entry></row>
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* </tbody></tgroup></table></para>
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*
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* Note that there are no predefined keys in the "xattr" and "xattr-sys"
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* namespaces. Keys for the "xattr" namespace are constructed by stripping
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* away the "user." prefix from the extended user attribute, and prepending
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* "xattr::". Keys for the "xattr-sys" namespace are constructed by
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* concatenating "xattr-sys::" with the extended attribute name. All extended
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* attribute values are returned as hex-encoded strings in which bytes outside
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* the ASCII range are encoded as hexadecimal escape sequences of the form
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* \x<replaceable>nn</replaceable>.
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**/
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/*
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* _g_file_attribute_value_free:
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* @attr: a #GFileAttributeValue.
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*
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* Frees the memory used by @attr.
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*
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**/
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void
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_g_file_attribute_value_free (GFileAttributeValue *attr)
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{
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g_return_if_fail (attr != NULL);
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_g_file_attribute_value_clear (attr);
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g_free (attr);
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}
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/*
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* _g_file_attribute_value_clear:
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* @attr: a #GFileAttributeValue.
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*
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* Clears the value of @attr and sets its type to
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* %G_FILE_ATTRIBUTE_TYPE_INVALID.
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*
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**/
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void
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_g_file_attribute_value_clear (GFileAttributeValue *attr)
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{
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g_return_if_fail (attr != NULL);
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if (attr->type == G_FILE_ATTRIBUTE_TYPE_STRING ||
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attr->type == G_FILE_ATTRIBUTE_TYPE_BYTE_STRING)
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g_free (attr->u.string);
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if (attr->type == G_FILE_ATTRIBUTE_TYPE_STRINGV)
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g_strfreev (attr->u.stringv);
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if (attr->type == G_FILE_ATTRIBUTE_TYPE_OBJECT &&
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attr->u.obj != NULL)
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g_object_unref (attr->u.obj);
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attr->type = G_FILE_ATTRIBUTE_TYPE_INVALID;
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}
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/*
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* g_file_attribute_value_set:
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* @attr: a #GFileAttributeValue to set the value in.
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* @new_value: a #GFileAttributeValue to get the value from.
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*
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* Sets an attribute's value from another attribute.
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**/
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void
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_g_file_attribute_value_set (GFileAttributeValue *attr,
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const GFileAttributeValue *new_value)
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{
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g_return_if_fail (attr != NULL);
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g_return_if_fail (new_value != NULL);
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_g_file_attribute_value_clear (attr);
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*attr = *new_value;
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if (attr->type == G_FILE_ATTRIBUTE_TYPE_STRING ||
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attr->type == G_FILE_ATTRIBUTE_TYPE_BYTE_STRING)
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attr->u.string = g_strdup (attr->u.string);
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if (attr->type == G_FILE_ATTRIBUTE_TYPE_STRINGV)
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attr->u.stringv = g_strdupv (attr->u.stringv);
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if (attr->type == G_FILE_ATTRIBUTE_TYPE_OBJECT &&
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attr->u.obj != NULL)
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g_object_ref (attr->u.obj);
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}
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/*
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* _g_file_attribute_value_new:
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*
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* Creates a new file attribute.
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*
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* Returns: a #GFileAttributeValue.
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**/
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GFileAttributeValue *
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_g_file_attribute_value_new (void)
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{
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GFileAttributeValue *attr;
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attr = g_new (GFileAttributeValue, 1);
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attr->type = G_FILE_ATTRIBUTE_TYPE_INVALID;
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return attr;
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}
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gpointer
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_g_file_attribute_value_peek_as_pointer (GFileAttributeValue *attr)
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{
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switch (attr->type) {
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case G_FILE_ATTRIBUTE_TYPE_STRING:
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case G_FILE_ATTRIBUTE_TYPE_BYTE_STRING:
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return attr->u.string;
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case G_FILE_ATTRIBUTE_TYPE_STRINGV:
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return attr->u.stringv;
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case G_FILE_ATTRIBUTE_TYPE_OBJECT:
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return attr->u.obj;
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default:
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return (gpointer) &attr->u;
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}
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}
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/*
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* g_file_attribute_value_dup:
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* @other: a #GFileAttributeValue to duplicate.
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*
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* Duplicates a file attribute.
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*
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* Returns: a duplicate of the @other.
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**/
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GFileAttributeValue *
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_g_file_attribute_value_dup (const GFileAttributeValue *other)
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{
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GFileAttributeValue *attr;
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|
|
g_return_val_if_fail (other != NULL, NULL);
|
|
|
|
attr = g_new (GFileAttributeValue, 1);
|
|
attr->type = G_FILE_ATTRIBUTE_TYPE_INVALID;
|
|
_g_file_attribute_value_set (attr, other);
|
|
return attr;
|
|
}
|
|
|
|
G_DEFINE_BOXED_TYPE (GFileAttributeInfoList, g_file_attribute_info_list,
|
|
g_file_attribute_info_list_dup,
|
|
g_file_attribute_info_list_unref)
|
|
|
|
static gboolean
|
|
valid_char (char c)
|
|
{
|
|
return c >= 32 && c <= 126 && c != '\\';
|
|
}
|
|
|
|
static char *
|
|
escape_byte_string (const char *str)
|
|
{
|
|
size_t len;
|
|
int num_invalid, i;
|
|
char *escaped_val, *p;
|
|
unsigned char c;
|
|
const char hex_digits[] = "0123456789abcdef";
|
|
|
|
len = strlen (str);
|
|
|
|
num_invalid = 0;
|
|
for (i = 0; i < len; i++)
|
|
{
|
|
if (!valid_char (str[i]))
|
|
num_invalid++;
|
|
}
|
|
|
|
if (num_invalid == 0)
|
|
return g_strdup (str);
|
|
else
|
|
{
|
|
escaped_val = g_malloc (len + num_invalid*3 + 1);
|
|
|
|
p = escaped_val;
|
|
for (i = 0; i < len; i++)
|
|
{
|
|
c = str[i];
|
|
if (valid_char (c))
|
|
*p++ = c;
|
|
else
|
|
{
|
|
*p++ = '\\';
|
|
*p++ = 'x';
|
|
*p++ = hex_digits[(c >> 4) & 0xf];
|
|
*p++ = hex_digits[c & 0xf];
|
|
}
|
|
}
|
|
*p++ = 0;
|
|
return escaped_val;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* _g_file_attribute_value_as_string:
|
|
* @attr: a #GFileAttributeValue.
|
|
*
|
|
* Converts a #GFileAttributeValue to a string for display.
|
|
* The returned string should be freed when no longer needed.
|
|
*
|
|
* Returns: a string from the @attr, %NULL on error, or "<invalid>"
|
|
* if @attr is of type %G_FILE_ATTRIBUTE_TYPE_INVALID.
|
|
*/
|
|
char *
|
|
_g_file_attribute_value_as_string (const GFileAttributeValue *attr)
|
|
{
|
|
GString *s;
|
|
int i;
|
|
char *str;
|
|
|
|
g_return_val_if_fail (attr != NULL, NULL);
|
|
|
|
switch (attr->type)
|
|
{
|
|
case G_FILE_ATTRIBUTE_TYPE_STRING:
|
|
str = g_strdup (attr->u.string);
|
|
break;
|
|
case G_FILE_ATTRIBUTE_TYPE_STRINGV:
|
|
s = g_string_new ("[");
|
|
for (i = 0; attr->u.stringv[i] != NULL; i++)
|
|
{
|
|
g_string_append (s, attr->u.stringv[i]);
|
|
if (attr->u.stringv[i+1] != NULL)
|
|
g_string_append (s, ", ");
|
|
}
|
|
g_string_append (s, "]");
|
|
str = g_string_free (s, FALSE);
|
|
break;
|
|
case G_FILE_ATTRIBUTE_TYPE_BYTE_STRING:
|
|
str = escape_byte_string (attr->u.string);
|
|
break;
|
|
case G_FILE_ATTRIBUTE_TYPE_BOOLEAN:
|
|
str = g_strdup_printf ("%s", attr->u.boolean?"TRUE":"FALSE");
|
|
break;
|
|
case G_FILE_ATTRIBUTE_TYPE_UINT32:
|
|
str = g_strdup_printf ("%u", (unsigned int)attr->u.uint32);
|
|
break;
|
|
case G_FILE_ATTRIBUTE_TYPE_INT32:
|
|
str = g_strdup_printf ("%i", (int)attr->u.int32);
|
|
break;
|
|
case G_FILE_ATTRIBUTE_TYPE_UINT64:
|
|
str = g_strdup_printf ("%"G_GUINT64_FORMAT, attr->u.uint64);
|
|
break;
|
|
case G_FILE_ATTRIBUTE_TYPE_INT64:
|
|
str = g_strdup_printf ("%"G_GINT64_FORMAT, attr->u.int64);
|
|
break;
|
|
case G_FILE_ATTRIBUTE_TYPE_OBJECT:
|
|
str = g_strdup_printf ("%s:%p", g_type_name_from_instance
|
|
((GTypeInstance *) attr->u.obj),
|
|
attr->u.obj);
|
|
break;
|
|
case G_FILE_ATTRIBUTE_TYPE_INVALID:
|
|
str = g_strdup ("<unset>");
|
|
break;
|
|
default:
|
|
g_warning ("Invalid type in GFileInfo attribute");
|
|
str = g_strdup ("<invalid>");
|
|
break;
|
|
}
|
|
|
|
return str;
|
|
}
|
|
|
|
/*
|
|
* _g_file_attribute_value_get_string:
|
|
* @attr: a #GFileAttributeValue.
|
|
*
|
|
* Gets the string from a file attribute value. If the value is not the
|
|
* right type then %NULL will be returned.
|
|
*
|
|
* Returns: the UTF-8 string value contained within the attribute, or %NULL.
|
|
*/
|
|
const char *
|
|
_g_file_attribute_value_get_string (const GFileAttributeValue *attr)
|
|
{
|
|
if (attr == NULL)
|
|
return NULL;
|
|
|
|
g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_STRING, NULL);
|
|
|
|
return attr->u.string;
|
|
}
|
|
|
|
/*
|
|
* _g_file_attribute_value_get_byte_string:
|
|
* @attr: a #GFileAttributeValue.
|
|
*
|
|
* Gets the byte string from a file attribute value. If the value is not the
|
|
* right type then %NULL will be returned.
|
|
*
|
|
* Returns: the byte string contained within the attribute or %NULL.
|
|
*/
|
|
const char *
|
|
_g_file_attribute_value_get_byte_string (const GFileAttributeValue *attr)
|
|
{
|
|
if (attr == NULL)
|
|
return NULL;
|
|
|
|
g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_BYTE_STRING, NULL);
|
|
|
|
return attr->u.string;
|
|
}
|
|
|
|
char **
|
|
_g_file_attribute_value_get_stringv (const GFileAttributeValue *attr)
|
|
{
|
|
if (attr == NULL)
|
|
return NULL;
|
|
|
|
g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_STRINGV, NULL);
|
|
|
|
return attr->u.stringv;
|
|
}
|
|
|
|
/*
|
|
* _g_file_attribute_value_get_boolean:
|
|
* @attr: a #GFileAttributeValue.
|
|
*
|
|
* Gets the boolean value from a file attribute value. If the value is not the
|
|
* right type then %FALSE will be returned.
|
|
*
|
|
* Returns: the boolean value contained within the attribute, or %FALSE.
|
|
*/
|
|
gboolean
|
|
_g_file_attribute_value_get_boolean (const GFileAttributeValue *attr)
|
|
{
|
|
if (attr == NULL)
|
|
return FALSE;
|
|
|
|
g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_BOOLEAN, FALSE);
|
|
|
|
return attr->u.boolean;
|
|
}
|
|
|
|
/*
|
|
* _g_file_attribute_value_get_uint32:
|
|
* @attr: a #GFileAttributeValue.
|
|
*
|
|
* Gets the unsigned 32-bit integer from a file attribute value. If the value
|
|
* is not the right type then 0 will be returned.
|
|
*
|
|
* Returns: the unsigned 32-bit integer from the attribute, or 0.
|
|
*/
|
|
guint32
|
|
_g_file_attribute_value_get_uint32 (const GFileAttributeValue *attr)
|
|
{
|
|
if (attr == NULL)
|
|
return 0;
|
|
|
|
g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_UINT32, 0);
|
|
|
|
return attr->u.uint32;
|
|
}
|
|
|
|
/*
|
|
* _g_file_attribute_value_get_int32:
|
|
* @attr: a #GFileAttributeValue.
|
|
*
|
|
* Gets the signed 32-bit integer from a file attribute value. If the value
|
|
* is not the right type then 0 will be returned.
|
|
*
|
|
* Returns: the signed 32-bit integer from the attribute, or 0.
|
|
*/
|
|
gint32
|
|
_g_file_attribute_value_get_int32 (const GFileAttributeValue *attr)
|
|
{
|
|
if (attr == NULL)
|
|
return 0;
|
|
|
|
g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_INT32, 0);
|
|
|
|
return attr->u.int32;
|
|
}
|
|
|
|
/*
|
|
* _g_file_attribute_value_get_uint64:
|
|
* @attr: a #GFileAttributeValue.
|
|
*
|
|
* Gets the unsigned 64-bit integer from a file attribute value. If the value
|
|
* is not the right type then 0 will be returned.
|
|
*
|
|
* Returns: the unsigned 64-bit integer from the attribute, or 0.
|
|
*/
|
|
guint64
|
|
_g_file_attribute_value_get_uint64 (const GFileAttributeValue *attr)
|
|
{
|
|
if (attr == NULL)
|
|
return 0;
|
|
|
|
g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_UINT64, 0);
|
|
|
|
return attr->u.uint64;
|
|
}
|
|
|
|
/*
|
|
* _g_file_attribute_value_get_int64:
|
|
* @attr: a #GFileAttributeValue.
|
|
*
|
|
* Gets the signed 64-bit integer from a file attribute value. If the value
|
|
* is not the right type then 0 will be returned.
|
|
*
|
|
* Returns: the signed 64-bit integer from the attribute, or 0.
|
|
*/
|
|
gint64
|
|
_g_file_attribute_value_get_int64 (const GFileAttributeValue *attr)
|
|
{
|
|
if (attr == NULL)
|
|
return 0;
|
|
|
|
g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_INT64, 0);
|
|
|
|
return attr->u.int64;
|
|
}
|
|
|
|
/*
|
|
* _g_file_attribute_value_get_object:
|
|
* @attr: a #GFileAttributeValue.
|
|
*
|
|
* Gets the GObject from a file attribute value. If the value
|
|
* is not the right type then %NULL will be returned.
|
|
*
|
|
* Returns: the GObject from the attribute, or %NULL.
|
|
**/
|
|
GObject *
|
|
_g_file_attribute_value_get_object (const GFileAttributeValue *attr)
|
|
{
|
|
if (attr == NULL)
|
|
return NULL;
|
|
|
|
g_return_val_if_fail (attr->type == G_FILE_ATTRIBUTE_TYPE_OBJECT, NULL);
|
|
|
|
return attr->u.obj;
|
|
}
|
|
|
|
|
|
void
|
|
_g_file_attribute_value_set_from_pointer (GFileAttributeValue *value,
|
|
GFileAttributeType type,
|
|
gpointer value_p,
|
|
gboolean dup)
|
|
{
|
|
_g_file_attribute_value_clear (value);
|
|
value->type = type;
|
|
switch (type)
|
|
{
|
|
case G_FILE_ATTRIBUTE_TYPE_STRING:
|
|
case G_FILE_ATTRIBUTE_TYPE_BYTE_STRING:
|
|
if (dup)
|
|
value->u.string = g_strdup (value_p);
|
|
else
|
|
value->u.string = value_p;
|
|
break;
|
|
|
|
case G_FILE_ATTRIBUTE_TYPE_STRINGV:
|
|
if (dup)
|
|
value->u.stringv = g_strdupv (value_p);
|
|
else
|
|
value->u.stringv = value_p;
|
|
break;
|
|
|
|
case G_FILE_ATTRIBUTE_TYPE_OBJECT:
|
|
if (dup)
|
|
value->u.obj = g_object_ref (value_p);
|
|
else
|
|
value->u.obj = value_p;
|
|
break;
|
|
|
|
case G_FILE_ATTRIBUTE_TYPE_BOOLEAN:
|
|
value->u.boolean = *(gboolean *)value_p;
|
|
break;
|
|
|
|
case G_FILE_ATTRIBUTE_TYPE_UINT32:
|
|
value->u.uint32 = *(guint32 *)value_p;
|
|
break;
|
|
|
|
case G_FILE_ATTRIBUTE_TYPE_INT32:
|
|
value->u.int32 = *(gint32 *)value_p;
|
|
break;
|
|
|
|
case G_FILE_ATTRIBUTE_TYPE_UINT64:
|
|
value->u.uint64 = *(guint64 *)value_p;
|
|
break;
|
|
|
|
case G_FILE_ATTRIBUTE_TYPE_INT64:
|
|
value->u.int64 = *(gint64 *)value_p;
|
|
break;
|
|
|
|
case G_FILE_ATTRIBUTE_TYPE_INVALID:
|
|
break;
|
|
|
|
default:
|
|
g_warning ("Unknown type specified in g_file_info_set_attribute\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* _g_file_attribute_value_set_string:
|
|
* @attr: a #GFileAttributeValue.
|
|
* @string: a UTF-8 string to set within the type.
|
|
*
|
|
* Sets the attribute value to a given UTF-8 string.
|
|
*/
|
|
void
|
|
_g_file_attribute_value_set_string (GFileAttributeValue *attr,
|
|
const char *string)
|
|
{
|
|
g_return_if_fail (attr != NULL);
|
|
g_return_if_fail (string != NULL);
|
|
|
|
_g_file_attribute_value_clear (attr);
|
|
attr->type = G_FILE_ATTRIBUTE_TYPE_STRING;
|
|
attr->u.string = g_strdup (string);
|
|
}
|
|
|
|
/*
|
|
* _g_file_attribute_value_set_byte_string:
|
|
* @attr: a #GFileAttributeValue.
|
|
* @string: a byte string to set within the type.
|
|
*
|
|
* Sets the attribute value to a given byte string.
|
|
*/
|
|
void
|
|
_g_file_attribute_value_set_byte_string (GFileAttributeValue *attr,
|
|
const char *string)
|
|
{
|
|
g_return_if_fail (attr != NULL);
|
|
g_return_if_fail (string != NULL);
|
|
|
|
_g_file_attribute_value_clear (attr);
|
|
attr->type = G_FILE_ATTRIBUTE_TYPE_BYTE_STRING;
|
|
attr->u.string = g_strdup (string);
|
|
}
|
|
|
|
void
|
|
_g_file_attribute_value_set_stringv (GFileAttributeValue *attr,
|
|
char **value)
|
|
{
|
|
g_return_if_fail (attr != NULL);
|
|
g_return_if_fail (value != NULL);
|
|
|
|
_g_file_attribute_value_clear (attr);
|
|
attr->type = G_FILE_ATTRIBUTE_TYPE_STRINGV;
|
|
attr->u.stringv = g_strdupv (value);
|
|
}
|
|
|
|
|
|
/*
|
|
* _g_file_attribute_value_set_boolean:
|
|
* @attr: a #GFileAttributeValue.
|
|
* @value: a #gboolean to set within the type.
|
|
*
|
|
* Sets the attribute value to the given boolean value.
|
|
*/
|
|
void
|
|
_g_file_attribute_value_set_boolean (GFileAttributeValue *attr,
|
|
gboolean value)
|
|
{
|
|
g_return_if_fail (attr != NULL);
|
|
|
|
_g_file_attribute_value_clear (attr);
|
|
attr->type = G_FILE_ATTRIBUTE_TYPE_BOOLEAN;
|
|
attr->u.boolean = !!value;
|
|
}
|
|
|
|
/*
|
|
* _g_file_attribute_value_set_uint32:
|
|
* @attr: a #GFileAttributeValue.
|
|
* @value: a #guint32 to set within the type.
|
|
*
|
|
* Sets the attribute value to the given unsigned 32-bit integer.
|
|
*/
|
|
void
|
|
_g_file_attribute_value_set_uint32 (GFileAttributeValue *attr,
|
|
guint32 value)
|
|
{
|
|
g_return_if_fail (attr != NULL);
|
|
|
|
_g_file_attribute_value_clear (attr);
|
|
attr->type = G_FILE_ATTRIBUTE_TYPE_UINT32;
|
|
attr->u.uint32 = value;
|
|
}
|
|
|
|
/*
|
|
* _g_file_attribute_value_set_int32:
|
|
* @attr: a #GFileAttributeValue.
|
|
* @value: a #gint32 to set within the type.
|
|
*
|
|
* Sets the attribute value to the given signed 32-bit integer.
|
|
*/
|
|
void
|
|
_g_file_attribute_value_set_int32 (GFileAttributeValue *attr,
|
|
gint32 value)
|
|
{
|
|
g_return_if_fail (attr != NULL);
|
|
|
|
_g_file_attribute_value_clear (attr);
|
|
attr->type = G_FILE_ATTRIBUTE_TYPE_INT32;
|
|
attr->u.int32 = value;
|
|
}
|
|
|
|
/*
|
|
* _g_file_attribute_value_set_uint64:
|
|
* @attr: a #GFileAttributeValue.
|
|
* @value: a #guint64 to set within the type.
|
|
*
|
|
* Sets the attribute value to a given unsigned 64-bit integer.
|
|
*/
|
|
void
|
|
_g_file_attribute_value_set_uint64 (GFileAttributeValue *attr,
|
|
guint64 value)
|
|
{
|
|
g_return_if_fail (attr != NULL);
|
|
|
|
_g_file_attribute_value_clear (attr);
|
|
attr->type = G_FILE_ATTRIBUTE_TYPE_UINT64;
|
|
attr->u.uint64 = value;
|
|
}
|
|
|
|
/*
|
|
* _g_file_attribute_value_set_int64:
|
|
* @attr: a #GFileAttributeValue.
|
|
* @value: a #gint64 to set within the type.
|
|
*
|
|
* Sets the attribute value to a given signed 64-bit integer.
|
|
*/
|
|
void
|
|
_g_file_attribute_value_set_int64 (GFileAttributeValue *attr,
|
|
gint64 value)
|
|
{
|
|
g_return_if_fail (attr != NULL);
|
|
|
|
_g_file_attribute_value_clear (attr);
|
|
attr->type = G_FILE_ATTRIBUTE_TYPE_INT64;
|
|
attr->u.int64 = value;
|
|
}
|
|
|
|
/*
|
|
* _g_file_attribute_value_set_object:
|
|
* @attr: a #GFileAttributeValue.
|
|
* @obj: a #GObject.
|
|
*
|
|
* Sets the attribute to contain the value @obj.
|
|
* The @attr references the GObject internally.
|
|
*/
|
|
void
|
|
_g_file_attribute_value_set_object (GFileAttributeValue *attr,
|
|
GObject *obj)
|
|
{
|
|
g_return_if_fail (attr != NULL);
|
|
g_return_if_fail (obj != NULL);
|
|
|
|
_g_file_attribute_value_clear (attr);
|
|
attr->type = G_FILE_ATTRIBUTE_TYPE_OBJECT;
|
|
attr->u.obj = g_object_ref (obj);
|
|
}
|
|
|
|
typedef struct {
|
|
GFileAttributeInfoList public;
|
|
GArray *array;
|
|
int ref_count;
|
|
} GFileAttributeInfoListPriv;
|
|
|
|
static void
|
|
list_update_public (GFileAttributeInfoListPriv *priv)
|
|
{
|
|
priv->public.infos = (GFileAttributeInfo *)priv->array->data;
|
|
priv->public.n_infos = priv->array->len;
|
|
}
|
|
|
|
/**
|
|
* g_file_attribute_info_list_new:
|
|
*
|
|
* Creates a new file attribute info list.
|
|
*
|
|
* Returns: a #GFileAttributeInfoList.
|
|
*/
|
|
GFileAttributeInfoList *
|
|
g_file_attribute_info_list_new (void)
|
|
{
|
|
GFileAttributeInfoListPriv *priv;
|
|
|
|
priv = g_new0 (GFileAttributeInfoListPriv, 1);
|
|
|
|
priv->ref_count = 1;
|
|
priv->array = g_array_new (TRUE, FALSE, sizeof (GFileAttributeInfo));
|
|
|
|
list_update_public (priv);
|
|
|
|
return (GFileAttributeInfoList *)priv;
|
|
}
|
|
|
|
/**
|
|
* g_file_attribute_info_list_dup:
|
|
* @list: a #GFileAttributeInfoList to duplicate.
|
|
*
|
|
* Makes a duplicate of a file attribute info list.
|
|
*
|
|
* Returns: a copy of the given @list.
|
|
*/
|
|
GFileAttributeInfoList *
|
|
g_file_attribute_info_list_dup (GFileAttributeInfoList *list)
|
|
{
|
|
GFileAttributeInfoListPriv *new;
|
|
int i;
|
|
|
|
g_return_val_if_fail (list != NULL, NULL);
|
|
|
|
new = g_new0 (GFileAttributeInfoListPriv, 1);
|
|
new->ref_count = 1;
|
|
new->array = g_array_new (TRUE, FALSE, sizeof (GFileAttributeInfo));
|
|
|
|
g_array_set_size (new->array, list->n_infos);
|
|
list_update_public (new);
|
|
for (i = 0; i < list->n_infos; i++)
|
|
{
|
|
new->public.infos[i].name = g_strdup (list->infos[i].name);
|
|
new->public.infos[i].type = list->infos[i].type;
|
|
new->public.infos[i].flags = list->infos[i].flags;
|
|
}
|
|
|
|
return (GFileAttributeInfoList *)new;
|
|
}
|
|
|
|
/**
|
|
* g_file_attribute_info_list_ref:
|
|
* @list: a #GFileAttributeInfoList to reference.
|
|
*
|
|
* References a file attribute info list.
|
|
*
|
|
* Returns: #GFileAttributeInfoList or %NULL on error.
|
|
*/
|
|
GFileAttributeInfoList *
|
|
g_file_attribute_info_list_ref (GFileAttributeInfoList *list)
|
|
{
|
|
GFileAttributeInfoListPriv *priv = (GFileAttributeInfoListPriv *)list;
|
|
|
|
g_return_val_if_fail (list != NULL, NULL);
|
|
g_return_val_if_fail (priv->ref_count > 0, NULL);
|
|
|
|
g_atomic_int_inc (&priv->ref_count);
|
|
|
|
return list;
|
|
}
|
|
|
|
/**
|
|
* g_file_attribute_info_list_unref:
|
|
* @list: The #GFileAttributeInfoList to unreference.
|
|
*
|
|
* Removes a reference from the given @list. If the reference count
|
|
* falls to zero, the @list is deleted.
|
|
*/
|
|
void
|
|
g_file_attribute_info_list_unref (GFileAttributeInfoList *list)
|
|
{
|
|
GFileAttributeInfoListPriv *priv = (GFileAttributeInfoListPriv *)list;
|
|
int i;
|
|
|
|
g_return_if_fail (list != NULL);
|
|
g_return_if_fail (priv->ref_count > 0);
|
|
|
|
if (g_atomic_int_dec_and_test (&priv->ref_count))
|
|
{
|
|
for (i = 0; i < list->n_infos; i++)
|
|
g_free (list->infos[i].name);
|
|
g_array_free (priv->array, TRUE);
|
|
g_free (list);
|
|
}
|
|
}
|
|
|
|
static int
|
|
g_file_attribute_info_list_bsearch (GFileAttributeInfoList *list,
|
|
const char *name)
|
|
{
|
|
int start, end, mid;
|
|
|
|
start = 0;
|
|
end = list->n_infos;
|
|
|
|
while (start != end)
|
|
{
|
|
mid = start + (end - start) / 2;
|
|
|
|
if (strcmp (name, list->infos[mid].name) < 0)
|
|
end = mid;
|
|
else if (strcmp (name, list->infos[mid].name) > 0)
|
|
start = mid + 1;
|
|
else
|
|
return mid;
|
|
}
|
|
return start;
|
|
}
|
|
|
|
/**
|
|
* g_file_attribute_info_list_lookup:
|
|
* @list: a #GFileAttributeInfoList.
|
|
* @name: the name of the attribute to lookup.
|
|
*
|
|
* Gets the file attribute with the name @name from @list.
|
|
*
|
|
* Returns: a #GFileAttributeInfo for the @name, or %NULL if an
|
|
* attribute isn't found.
|
|
*/
|
|
const GFileAttributeInfo *
|
|
g_file_attribute_info_list_lookup (GFileAttributeInfoList *list,
|
|
const char *name)
|
|
{
|
|
int i;
|
|
|
|
g_return_val_if_fail (list != NULL, NULL);
|
|
g_return_val_if_fail (name != NULL, NULL);
|
|
|
|
i = g_file_attribute_info_list_bsearch (list, name);
|
|
|
|
if (i < list->n_infos && strcmp (list->infos[i].name, name) == 0)
|
|
return &list->infos[i];
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* g_file_attribute_info_list_add:
|
|
* @list: a #GFileAttributeInfoList.
|
|
* @name: the name of the attribute to add.
|
|
* @type: the #GFileAttributeType for the attribute.
|
|
* @flags: #GFileAttributeInfoFlags for the attribute.
|
|
*
|
|
* Adds a new attribute with @name to the @list, setting
|
|
* its @type and @flags.
|
|
*/
|
|
void
|
|
g_file_attribute_info_list_add (GFileAttributeInfoList *list,
|
|
const char *name,
|
|
GFileAttributeType type,
|
|
GFileAttributeInfoFlags flags)
|
|
{
|
|
GFileAttributeInfoListPriv *priv = (GFileAttributeInfoListPriv *)list;
|
|
GFileAttributeInfo info;
|
|
int i;
|
|
|
|
g_return_if_fail (list != NULL);
|
|
g_return_if_fail (name != NULL);
|
|
|
|
i = g_file_attribute_info_list_bsearch (list, name);
|
|
|
|
if (i < list->n_infos && strcmp (list->infos[i].name, name) == 0)
|
|
{
|
|
list->infos[i].type = type;
|
|
return;
|
|
}
|
|
|
|
info.name = g_strdup (name);
|
|
info.type = type;
|
|
info.flags = flags;
|
|
g_array_insert_vals (priv->array, i, &info, 1);
|
|
|
|
list_update_public (priv);
|
|
}
|