Struct gio::Volume

pub struct Volume { /* private fields */ }

The GVolume interface represents user-visible objects that can be mounted. Note, when porting from GnomeVFS, GVolume is the moral equivalent of GnomeVFSDrive.

Mounting a GVolume instance is an asynchronous operation. For more information about asynchronous operations, see AsyncResult and Task. To mount a GVolume, first call VolumeExt::mount() with (at least) the GVolume instance, optionally a MountOperation object and a [type@Gio.AsyncReadyCallback].

Typically, one will only want to pass NULL for the 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 AsyncResult instance will be passed to the callback. That callback should then call Gio::Volume::mount_finish() with the GVolume instance and the AsyncResult data to see if the operation was completed successfully. If a [type@GLib.Error] is present when Gio::Volume::mount_finish() is called, then it will be filled with any error information.

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 VolumeExt::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().

Signals

changed

Emitted when the volume has been changed.

removed

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.

Implements

VolumeExt

Implementations

impl Volume

pub const NONE: Option<&'static Volume> = None

Trait Implementations

impl Clone for Volume

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Volume

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl HasParamSpec for Volume

type ParamSpec = ParamSpecObject

type SetValue = Volume

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, Volume>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for Volume

fn hash<H>(&self, state: &mut H)

where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Volume

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl<OT: ObjectType> PartialEq<OT> for Volume

fn eq(&self, other: &OT) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<OT: ObjectType> PartialOrd<OT> for Volume

fn partial_cmp(&self, other: &OT) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StaticType for Volume

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for Volume