UDisks.Job

Implementations:

UDisks.JobProxy, UDisks.JobSkeleton

Methods

class	interface_info ()
class	override_properties (klass, property_id_begin)
	call_cancel (arg_options, cancellable, callback, *user_data)
	call_cancel_finish (res)
	call_cancel_sync (arg_options, cancellable)
	complete_cancel (invocation)
	emit_completed (arg_success, arg_message)

Virtual Methods

	do_completed (arg_success, arg_message)
	do_handle_cancel (invocation, arg_options)

Properties

Name	Type	Flags	Short Description
bytes	int	r/w	Bytes
cancelable	bool	r/w	Cancelable
expected-end-time	int	r/w	ExpectedEndTime
objects	[str]	r/w	Objects
operation	str	r/w	Operation
progress	float	r/w	Progress
progress-valid	bool	r/w	ProgressValid
rate	int	r/w	Rate
start-time	int	r/w	StartTime
started-by-uid	int	r/w	StartedByUID

Signals

Name	Short Description
completed	On the client-side, this signal is emitted whenever the D-Bus signal “Completed” is received.
handle-cancel	Signal emitted when a remote caller is invoking the Cancel() D-Bus method.

Fields

None

Class Details

class UDisks.Job

Bases:

GObject.GInterface

Structure:

UDisks.JobIface

Abstract interface type for the D-Bus interface org.freedesktop.UDisks2.Job.

classmethod interface_info()

Returns:

A Gio.DBusInterfaceInfo. Do not free.

Return type:

Gio.DBusInterfaceInfo

Gets a machine-readable description of the org.freedesktop.UDisks2.Job D-Bus interface.

classmethod override_properties(klass, property_id_begin)

Parameters:

• klass (GObject.ObjectClass) – The class structure for a GObject.Object derived class.

• property_id_begin (int) – The property id to assign to the first overridden property.

Returns:

The last property id.

Return type:

int

Overrides all GObject.Object properties in the UDisks.Job interface for a concrete class. The properties are overridden in the order they are defined.

call_cancel(arg_options, cancellable, callback, *user_data)

Parameters:

• arg_options (GLib.Variant) – Argument to pass with the method invocation.

• cancellable (Gio.Cancellable or None) – A Gio.Cancellable or None.

• callback (Gio.AsyncReadyCallback or None) – A Gio.AsyncReadyCallback to call when the request is satisfied or None.

• user_data (object or None) – User data to pass to callback.

Asynchronously invokes the Cancel() D-Bus method on self. When the operation is finished, callback will be invoked in the thread-default main loop of the thread you are calling this method from (see GLib.MainContext.push_thread_default()). You can then call UDisks.Job.call_cancel_finish() to get the result of the operation.

See UDisks.Job.call_cancel_sync() for the synchronous, blocking version of this method.

call_cancel_finish(res)

Parameters:

res (Gio.AsyncResult) – The Gio.AsyncResult obtained from the Gio.AsyncReadyCallback passed to UDisks.Job.call_cancel().

Raises:

GLib.Error

Returns:

True if the call succeeded, False if error is set.

Return type:

bool

Finishes an operation started with UDisks.Job.call_cancel().

call_cancel_sync(arg_options, cancellable)

Parameters:

• arg_options (GLib.Variant) – Argument to pass with the method invocation.

• cancellable (Gio.Cancellable or None) – A Gio.Cancellable or None.

Raises:

GLib.Error

Returns:

True if the call succeeded, False if error is set.

Return type:

bool

Synchronously invokes the Cancel() D-Bus method on self. The calling thread is blocked until a reply is received.

See UDisks.Job.call_cancel() for the asynchronous version of this method.

complete_cancel(invocation)

Parameters:

invocation (Gio.DBusMethodInvocation) – A Gio.DBusMethodInvocation.

Helper function used in service implementations to finish handling invocations of the Cancel() D-Bus method. If you instead want to finish handling an invocation by returning an error, use g_dbus_method_invocation_return_error() or similar.

This method will free invocation, you cannot use it afterwards.

emit_completed(arg_success, arg_message)

Parameters:

• arg_success (bool) – Argument to pass with the signal.

• arg_message (str) – Argument to pass with the signal.

Emits the “Completed” D-Bus signal.

do_completed(arg_success, arg_message) virtual

Parameters:

• arg_success (bool) –

• arg_message (str) –

do_handle_cancel(invocation, arg_options) virtual

Parameters:

• invocation (Gio.DBusMethodInvocation) –

• arg_options (GLib.Variant) –

Return type:

bool

Signal Details

UDisks.Job.signals.completed(job, arg_success, arg_message)

Signal Name:

completed

Flags:

RUN_LAST

Parameters:

• job (UDisks.Job) – The object which received the signal

• arg_success (bool) – Argument.

• arg_message (str) – Argument.

On the client-side, this signal is emitted whenever the D-Bus signal “Completed” is received.

On the service-side, this signal can be used with e.g. g_signal_emit_by_name() to make the object emit the D-Bus signal.

UDisks.Job.signals.handle_cancel(job, invocation, arg_options)

Signal Name:

handle-cancel

Flags:

RUN_LAST

Parameters:

• job (UDisks.Job) – The object which received the signal

• invocation (Gio.DBusMethodInvocation) – A Gio.DBusMethodInvocation.

• arg_options (GLib.Variant) – Argument passed by remote caller.

Returns:

Gio.DBUS_METHOD_INVOCATION_HANDLED or True if the invocation was handled, Gio.DBUS_METHOD_INVOCATION_UNHANDLED or False to let other signal handlers run.

Return type:

bool

Signal emitted when a remote caller is invoking the Cancel() D-Bus method.

If a signal handler returns True, it means the signal handler will handle the invocation (e.g. take a reference to invocation and eventually call UDisks.Job.complete_cancel() or e.g. g_dbus_method_invocation_return_error() on it) and no other signal handlers will run. If no signal handler handles the invocation, the Gio.DBusError.UNKNOWN_METHOD error is returned.

Property Details

UDisks.Job.props.bytes

Name:

bytes

Type:

int

Default Value:

0

Flags:

READABLE, WRITABLE

Represents the D-Bus property “Bytes”.

Since the D-Bus property for this GObject.Object property is readable but not writable, it is meaningful to read from it on both the client- and service-side. It is only meaningful, however, to write to it on the service-side.

UDisks.Job.props.cancelable

Name:

cancelable

Type:

bool

Default Value:

False

Flags:

READABLE, WRITABLE

Represents the D-Bus property “Cancelable”.

Since the D-Bus property for this GObject.Object property is readable but not writable, it is meaningful to read from it on both the client- and service-side. It is only meaningful, however, to write to it on the service-side.

UDisks.Job.props.expected_end_time

Name:

expected-end-time

Type:

int

Default Value:

0

Flags:

READABLE, WRITABLE

Represents the D-Bus property “ExpectedEndTime”.

Since the D-Bus property for this GObject.Object property is readable but not writable, it is meaningful to read from it on both the client- and service-side. It is only meaningful, however, to write to it on the service-side.

UDisks.Job.props.objects

Name:

objects

Type:

[str]

Default Value:

[]

Flags:

READABLE, WRITABLE

Represents the D-Bus property “Objects”.

Since the D-Bus property for this GObject.Object property is readable but not writable, it is meaningful to read from it on both the client- and service-side. It is only meaningful, however, to write to it on the service-side.

UDisks.Job.props.operation

Name:

operation

Type:

str

Default Value:

None

Flags:

READABLE, WRITABLE

Represents the D-Bus property “Operation”.

Since the D-Bus property for this GObject.Object property is readable but not writable, it is meaningful to read from it on both the client- and service-side. It is only meaningful, however, to write to it on the service-side.

UDisks.Job.props.progress

Name:

progress

Type:

float

Default Value:

0.0

Flags:

READABLE, WRITABLE

Represents the D-Bus property “Progress”.

Since the D-Bus property for this GObject.Object property is readable but not writable, it is meaningful to read from it on both the client- and service-side. It is only meaningful, however, to write to it on the service-side.

UDisks.Job.props.progress_valid

Name:

progress-valid

Type:

bool

Default Value:

False

Flags:

READABLE, WRITABLE

Represents the D-Bus property “ProgressValid”.

Since the D-Bus property for this GObject.Object property is readable but not writable, it is meaningful to read from it on both the client- and service-side. It is only meaningful, however, to write to it on the service-side.

UDisks.Job.props.rate

Name:

rate

Type:

int

Default Value:

0

Flags:

READABLE, WRITABLE

Represents the D-Bus property “Rate”.

Since the D-Bus property for this GObject.Object property is readable but not writable, it is meaningful to read from it on both the client- and service-side. It is only meaningful, however, to write to it on the service-side.

UDisks.Job.props.start_time

Name:

start-time

Type:

int

Default Value:

0

Flags:

READABLE, WRITABLE

Represents the D-Bus property “StartTime”.

Since the D-Bus property for this GObject.Object property is readable but not writable, it is meaningful to read from it on both the client- and service-side. It is only meaningful, however, to write to it on the service-side.

UDisks.Job.props.started_by_uid

Name:

started-by-uid

Type:

int

Default Value:

0

Flags:

READABLE, WRITABLE

Represents the D-Bus property “StartedByUID”.

Since the D-Bus property for this GObject.Object property is readable but not writable, it is meaningful to read from it on both the client- and service-side. It is only meaningful, however, to write to it on the service-side.