Volume
The GVolume interface represents user-visible objects that can be mounted. For example, a file system partition on a USB flash drive, or an optical disc inserted into a disc drive.
If a GVolume is currently mounted, the corresponding iface@Gio.Mount can be retrieved using method@Gio.Volume.get_mount.
Mounting a GVolume instance is an asynchronous operation. For more information about asynchronous operations, see iface@Gio.AsyncResult and class@Gio.Task. To mount a GVolume, first call method@Gio.Volume.mount with (at least) the GVolume instance, optionally a class@Gio.MountOperation object and a type@Gio.AsyncReadyCallback.
Typically, one will only want to pass NULL for the class@Gio.MountOperation if automounting all volumes when a desktop session starts since it’s not desirable to put up a lot of dialogs asking for credentials.
The callback will be fired when the operation has resolved (either with success or failure), and a iface@Gio.AsyncResult instance will be passed to the callback. That callback should then call method@Gio.Volume.mount_finish with the GVolume instance and the iface@Gio.AsyncResult data to see if the operation was completed successfully. If a type@GLib.Error is present when method@Gio.Volume.mount_finish is called, then it will be filled with any error information.
Note, when migrating-gnome-vfs.html, GVolume is the moral equivalent of GnomeVFSDrive.
Volume Identifiers
It is sometimes necessary to directly access the underlying operating system object behind a volume (e.g. for passing a volume to an application via the command line). For this purpose, GIO allows to obtain an ‘identifier’ for the volume. There can be different kinds of identifiers, such as Hal UDIs, filesystem labels, traditional Unix devices (e.g. /dev/sda2), UUIDs. GIO uses predefined strings as names for the different kinds of identifiers: G_VOLUME_IDENTIFIER_KIND_UUID, G_VOLUME_IDENTIFIER_KIND_LABEL, etc. Use method@Gio.Volume.get_identifier to obtain an identifier for a volume.
Note that G_VOLUME_IDENTIFIER_KIND_HAL_UDI will only be available when the GVFS hal volume monitor is in use. Other volume monitors will generally be able to provide the G_VOLUME_IDENTIFIER_KIND_UNIX_DEVICE identifier, which can be used to obtain a hal device by means of libhal_manager_find_device_string_match().
Functions
Emitted when the volume has been changed.
This signal is emitted when the #GVolume have been removed. If the recipient is holding references to the object they should release them so the object can be finalized.
Ejects a volume. This is an asynchronous operation, and is finished by calling g_volume_eject_finish() with the @volume and #GAsyncResult returned in the @callback.
Finishes ejecting a volume. If any errors occurred during the operation,
Ejects a volume. This is an asynchronous operation, and is finished by calling g_volume_eject_with_operation_finish() with the @volume and #GAsyncResult data returned in the @callback.
Finishes ejecting a volume. If any errors occurred during the operation,
Gets the kinds of #volume-identifiers that @volume has. Use g_volume_get_identifier() to obtain the identifiers themselves.
Gets the activation root for a #GVolume if it is known ahead of mount time. Returns null otherwise. If not null and if @volume is mounted, then the result of g_mount_get_root() on the #GMount object obtained from g_volume_get_mount() will always either be equal or a prefix of what this function returns. In other words, in code
Gets the identifier of the given kind for @volume. See the #volume-identifiers for more information about volume identifiers.
Gets the sort key for @volume, if any.
Gets the symbolic icon for @volume.
Mounts a volume. This is an asynchronous operation, and is finished by calling g_volume_mount_finish() with the @volume and #GAsyncResult returned in the @callback.
Finishes mounting a volume. If any errors occurred during the operation,
Returns whether the volume should be automatically mounted.