Package org.gnome.gio

Class DBusConnection

java.lang.Object

io.github.jwharm.javagi.base.ProxyInstance

org.gnome.gobject.TypeInstance

org.gnome.gobject.GObject

org.gnome.gio.DBusConnection

All Implemented Interfaces:

Proxy, AsyncInitable, Initable

@Generated("io.github.jwharm.JavaGI")
public class DBusConnection
extends GObject
implements AsyncInitable, Initable

The GDBusConnection type is used for D-Bus connections to remote peers such as a message buses.

It is a low-level API that offers a lot of flexibility. For instance, it lets you establish a connection over any transport that can by represented as a IOStream.

This class is rarely used directly in D-Bus clients. If you are writing a D-Bus client, it is often easier to use the Gio.busOwnName(org.gnome.gio.BusType, java.lang.String, java.util.Set<org.gnome.gio.BusNameOwnerFlags>, org.gnome.gobject.Closure, org.gnome.gobject.Closure, org.gnome.gobject.Closure), Gio.busWatchName(org.gnome.gio.BusType, java.lang.String, java.util.Set<org.gnome.gio.BusNameWatcherFlags>, org.gnome.gobject.Closure, org.gnome.gobject.Closure) or DBusProxy.newForBus(org.gnome.gio.BusType, java.util.Set<org.gnome.gio.DBusProxyFlags>, org.gnome.gio.DBusInterfaceInfo, java.lang.String, java.lang.String, java.lang.String, org.gnome.gio.Cancellable, org.gnome.gio.AsyncReadyCallback) APIs.

As an exception to the usual GLib rule that a particular object must not be used by two threads at the same time, GDBusConnections methods may be called from any thread. This is so that Gio.busGet(org.gnome.gio.BusType, org.gnome.gio.Cancellable, org.gnome.gio.AsyncReadyCallback) and Gio.busGetSync(org.gnome.gio.BusType, org.gnome.gio.Cancellable) can safely return the same GDBusConnection when called from any thread.

Most of the ways to obtain a GDBusConnection automatically initialize it (i.e. connect to D-Bus): for instance, new_(org.gnome.gio.IOStream, java.lang.String, java.util.Set<org.gnome.gio.DBusConnectionFlags>, org.gnome.gio.DBusAuthObserver, org.gnome.gio.Cancellable, org.gnome.gio.AsyncReadyCallback) and Gio.busGet(org.gnome.gio.BusType, org.gnome.gio.Cancellable, org.gnome.gio.AsyncReadyCallback), and the synchronous versions of those methods, give you an initialized connection. Language bindings for GIO should use Initable.new_(org.gnome.glib.Type, org.gnome.gio.Cancellable, org.gnome.glib.GError[], java.lang.String, java.lang.Object...) or AsyncInitable.newAsync(org.gnome.glib.Type, int, org.gnome.gio.Cancellable, org.gnome.gio.AsyncReadyCallback, java.lang.String, java.lang.Object...), which also initialize the connection.

If you construct an uninitialized GDBusConnection, such as via GObject(org.gnome.glib.Type, java.lang.String, java.lang.Object...), you must initialize it via Initable.init(org.gnome.gio.Cancellable) or AsyncInitable.initAsync(int, org.gnome.gio.Cancellable, org.gnome.gio.AsyncReadyCallback) before using its methods or properties. Calling methods or accessing properties on a GDBusConnection that has not completed initialization successfully is considered to be invalid, and leads to undefined behaviour. In particular, if initialization fails with a GError, the only valid thing you can do with that GDBusConnection is to free it with GObject.unref().

An example D-Bus server
Here is an example for a D-Bus server: gdbus-example-server.c

An example for exporting a subtree
Here is an example for exporting a subtree: gdbus-example-subtree.c

An example for file descriptor passing
Here is an example for passing UNIX file descriptors: gdbus-unix-fd-client.c

An example for exporting a GObject
Here is an example for exporting a GObject: gdbus-example-export.c

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DBusConnection.Builder<B extends DBusConnection.Builder<B>>	Inner class implementing a builder pattern to construct a GObject with properties.
static interface	DBusConnection.ClosedCallback	Functional interface declaration of the ClosedCallback callback.

Nested classes/interfaces inherited from class org.gnome.gobject.GObject

GObject.NotifyCallback, GObject.ObjectClass

Nested classes/interfaces inherited from interface org.gnome.gio.AsyncInitable

AsyncInitable.AsyncInitableIface, AsyncInitable.AsyncInitableImpl

Nested classes/interfaces inherited from interface org.gnome.gio.Initable

Initable.InitableIface, Initable.InitableImpl

Constructor Summary

Constructors

Constructor	Description
DBusConnection(MemorySegment address)	Create a DBusConnection proxy instance for the provided memory address.

Method Summary

Modifier and Type	Method	Description
int	addFilter(DBusMessageFilterFunction filterFunction)	Adds a message filter.
protected DBusConnection	asParent()	Returns this instance as if it were its parent type.
static DBusConnection.Builder<? extends DBusConnection.Builder>	builder()	A DBusConnection.Builder object constructs a DBusConnection with the specified properties.
void	call(@Nullable String busName, String objectPath, String interfaceName, String methodName, @Nullable Variant parameters, @Nullable VariantType replyType, Set<DBusCallFlags> flags, int timeoutMsec, @Nullable Cancellable cancellable, @Nullable AsyncReadyCallback callback)	Asynchronously invokes the methodName method on the interfaceName D-Bus interface on the remote object at objectPath owned by busName.
void	call(@Nullable String busName, String objectPath, String interfaceName, String methodName, @Nullable Variant parameters, @Nullable VariantType replyType, DBusCallFlags flags, int timeoutMsec, @Nullable Cancellable cancellable, @Nullable AsyncReadyCallback callback)	Asynchronously invokes the methodName method on the interfaceName D-Bus interface on the remote object at objectPath owned by busName.
Variant	callFinish(AsyncResult res)	Finishes an operation started with g_dbus_connection_call().
Variant	callSync(@Nullable String busName, String objectPath, String interfaceName, String methodName, @Nullable Variant parameters, @Nullable VariantType replyType, Set<DBusCallFlags> flags, int timeoutMsec, @Nullable Cancellable cancellable)	Synchronously invokes the methodName method on the interfaceName D-Bus interface on the remote object at objectPath owned by busName.
Variant	callSync(@Nullable String busName, String objectPath, String interfaceName, String methodName, @Nullable Variant parameters, @Nullable VariantType replyType, DBusCallFlags flags, int timeoutMsec, @Nullable Cancellable cancellable)	Synchronously invokes the methodName method on the interfaceName D-Bus interface on the remote object at objectPath owned by busName.
void	callWithUnixFdList(@Nullable String busName, String objectPath, String interfaceName, String methodName, @Nullable Variant parameters, @Nullable VariantType replyType, Set<DBusCallFlags> flags, int timeoutMsec, @Nullable UnixFDList fdList, @Nullable Cancellable cancellable, @Nullable AsyncReadyCallback callback)	Like g_dbus_connection_call() but also takes a GUnixFDList object.
void	callWithUnixFdList(@Nullable String busName, String objectPath, String interfaceName, String methodName, @Nullable Variant parameters, @Nullable VariantType replyType, DBusCallFlags flags, int timeoutMsec, @Nullable UnixFDList fdList, @Nullable Cancellable cancellable, @Nullable AsyncReadyCallback callback)	Like g_dbus_connection_call() but also takes a GUnixFDList object.
Variant	callWithUnixFdListFinish(@Nullable Out<UnixFDList> outFdList, AsyncResult res)	Finishes an operation started with g_dbus_connection_call_with_unix_fd_list().
Variant	callWithUnixFdListSync(@Nullable String busName, String objectPath, String interfaceName, String methodName, @Nullable Variant parameters, @Nullable VariantType replyType, Set<DBusCallFlags> flags, int timeoutMsec, @Nullable UnixFDList fdList, @Nullable Out<UnixFDList> outFdList, @Nullable Cancellable cancellable)	Like g_dbus_connection_call_sync() but also takes and returns GUnixFDList objects.
Variant	callWithUnixFdListSync(@Nullable String busName, String objectPath, String interfaceName, String methodName, @Nullable Variant parameters, @Nullable VariantType replyType, DBusCallFlags flags, int timeoutMsec, @Nullable UnixFDList fdList, @Nullable Out<UnixFDList> outFdList, @Nullable Cancellable cancellable)	Like g_dbus_connection_call_sync() but also takes and returns GUnixFDList objects.
void	close(@Nullable Cancellable cancellable, @Nullable AsyncReadyCallback callback)	Closes this DBusConnection.
boolean	closeFinish(AsyncResult res)	Finishes an operation started with g_dbus_connection_close().
boolean	closeSync(@Nullable Cancellable cancellable)	Synchronously closes this DBusConnection.
void	emitClosed(boolean remotePeerVanished, @Nullable GError error)	Emits the "closed" signal.
boolean	emitSignal(@Nullable String destinationBusName, String objectPath, String interfaceName, String signalName, @Nullable Variant parameters)	Emits a signal.
int	exportActionGroup(String objectPath, ActionGroup actionGroup)	Exports actionGroup on this DBusConnection at objectPath.
int	exportMenuModel(String objectPath, MenuModel menu)	Exports menu on this DBusConnection at objectPath.
static DBusConnection	finish(AsyncResult res)	Finishes an operation started with g_dbus_connection_new().
void	flush(@Nullable Cancellable cancellable, @Nullable AsyncReadyCallback callback)	Asynchronously flushes this DBusConnection, that is, writes all queued outgoing message to the transport and then flushes the transport (using g_output_stream_flush_async()).
boolean	flushFinish(AsyncResult res)	Finishes an operation started with g_dbus_connection_flush().
boolean	flushSync(@Nullable Cancellable cancellable)	Synchronously flushes this DBusConnection.
static DBusConnection	forAddressFinish(AsyncResult res)	Finishes an operation started with g_dbus_connection_new_for_address().
static DBusConnection	forAddressSync(String address, Set<DBusConnectionFlags> flags, @Nullable DBusAuthObserver observer, @Nullable Cancellable cancellable)	Synchronously connects and sets up a D-Bus client connection for exchanging D-Bus messages with an endpoint specified by address which must be in the D-Bus address format.
static DBusConnection	forAddressSync(String address, DBusConnectionFlags flags, @Nullable DBusAuthObserver observer, @Nullable Cancellable cancellable)	Synchronously connects and sets up a D-Bus client connection for exchanging D-Bus messages with an endpoint specified by address which must be in the D-Bus address format.
Set<DBusCapabilityFlags>	getCapabilities()	Gets the capabilities negotiated with the remote peer
boolean	getExitOnClose()	Gets whether the process is terminated when this DBusConnection is closed by the remote peer.
Set<DBusConnectionFlags>	getFlags()	Gets the flags used to construct this connection
String	getGuid()	The GUID of the peer performing the role of server when authenticating.
int	getLastSerial()	Retrieves the last serial number assigned to a GDBusMessage on the current thread.
Credentials	getPeerCredentials()	Gets the credentials of the authenticated peer.
IOStream	getStream()	Gets the underlying stream used for IO.
static Type	getType()	Get the GType of the DBusConnection class
String	getUniqueName()	Gets the unique name of this DBusConnection as assigned by the message bus.
boolean	isClosed()	Gets whether this DBusConnection is closed.
static void	new_(IOStream stream, @Nullable String guid, Set<DBusConnectionFlags> flags, @Nullable DBusAuthObserver observer, @Nullable Cancellable cancellable, @Nullable AsyncReadyCallback callback)	Asynchronously sets up a D-Bus connection for exchanging D-Bus messages with the end represented by stream.
static void	new_(IOStream stream, @Nullable String guid, DBusConnectionFlags flags, @Nullable DBusAuthObserver observer, @Nullable Cancellable cancellable, @Nullable AsyncReadyCallback callback)	Asynchronously sets up a D-Bus connection for exchanging D-Bus messages with the end represented by stream.
static void	newForAddress(String address, Set<DBusConnectionFlags> flags, @Nullable DBusAuthObserver observer, @Nullable Cancellable cancellable, @Nullable AsyncReadyCallback callback)	Asynchronously connects and sets up a D-Bus client connection for exchanging D-Bus messages with an endpoint specified by address which must be in the D-Bus address format.
static void	newForAddress(String address, DBusConnectionFlags flags, @Nullable DBusAuthObserver observer, @Nullable Cancellable cancellable, @Nullable AsyncReadyCallback callback)	Asynchronously connects and sets up a D-Bus client connection for exchanging D-Bus messages with an endpoint specified by address which must be in the D-Bus address format.
SignalConnection<DBusConnection.ClosedCallback>	onClosed(DBusConnection.ClosedCallback handler)	Emitted when the connection is closed.
int	registerObject(String objectPath, DBusInterfaceInfo interfaceInfo, @Nullable DBusInterfaceVTable vtable, @Nullable MemorySegment userData)	Registers callbacks for exported objects at objectPath with the D-Bus interface that is described in interfaceInfo.
int	registerObjectWithClosures(String objectPath, DBusInterfaceInfo interfaceInfo, @Nullable Closure methodCallClosure, @Nullable Closure getPropertyClosure, @Nullable Closure setPropertyClosure)	Version of g_dbus_connection_register_object() using closures instead of a GDBusInterfaceVTable for easier binding in other languages.
int	registerSubtree(String objectPath, DBusSubtreeVTable vtable, Set<DBusSubtreeFlags> flags, @Nullable MemorySegment userData)	Registers a whole subtree of dynamic objects.
int	registerSubtree(String objectPath, DBusSubtreeVTable vtable, DBusSubtreeFlags flags, @Nullable MemorySegment userData)	Registers a whole subtree of dynamic objects.
void	removeFilter(int filterId)	Removes a filter.
boolean	sendMessage(DBusMessage message, Set<DBusSendMessageFlags> flags, @Nullable Out<Integer> outSerial)	Asynchronously sends message to the peer represented by this DBusConnection.
boolean	sendMessage(DBusMessage message, DBusSendMessageFlags flags, @Nullable Out<Integer> outSerial)	Asynchronously sends message to the peer represented by this DBusConnection.
void	sendMessageWithReply(DBusMessage message, Set<DBusSendMessageFlags> flags, int timeoutMsec, @Nullable Out<Integer> outSerial, @Nullable Cancellable cancellable, @Nullable AsyncReadyCallback callback)	Asynchronously sends message to the peer represented by this DBusConnection.
void	sendMessageWithReply(DBusMessage message, DBusSendMessageFlags flags, int timeoutMsec, @Nullable Out<Integer> outSerial, @Nullable Cancellable cancellable, @Nullable AsyncReadyCallback callback)	Asynchronously sends message to the peer represented by this DBusConnection.
DBusMessage	sendMessageWithReplyFinish(AsyncResult res)	Finishes an operation started with g_dbus_connection_send_message_with_reply().
DBusMessage	sendMessageWithReplySync(DBusMessage message, Set<DBusSendMessageFlags> flags, int timeoutMsec, @Nullable Out<Integer> outSerial, @Nullable Cancellable cancellable)	Synchronously sends message to the peer represented by this DBusConnection and blocks the calling thread until a reply is received or the timeout is reached.
DBusMessage	sendMessageWithReplySync(DBusMessage message, DBusSendMessageFlags flags, int timeoutMsec, @Nullable Out<Integer> outSerial, @Nullable Cancellable cancellable)	Synchronously sends message to the peer represented by this DBusConnection and blocks the calling thread until a reply is received or the timeout is reached.
void	setExitOnClose(boolean exitOnClose)	Sets whether the process should be terminated when this DBusConnection is closed by the remote peer.
int	signalSubscribe(@Nullable String sender, @Nullable String interfaceName, @Nullable String member, @Nullable String objectPath, @Nullable String arg0, Set<DBusSignalFlags> flags, DBusSignalCallback callback)	Subscribes to signals on this DBusConnection and invokes callback whenever the signal is received.
int	signalSubscribe(@Nullable String sender, @Nullable String interfaceName, @Nullable String member, @Nullable String objectPath, @Nullable String arg0, DBusSignalFlags flags, DBusSignalCallback callback)	Subscribes to signals on this DBusConnection and invokes callback whenever the signal is received.
void	signalUnsubscribe(int subscriptionId)	Unsubscribes from signals.
void	startMessageProcessing()	If this DBusConnection was created with DBusConnectionFlags.DELAY_MESSAGE_PROCESSING, this method starts processing messages.
static DBusConnection	sync(IOStream stream, @Nullable String guid, Set<DBusConnectionFlags> flags, @Nullable DBusAuthObserver observer, @Nullable Cancellable cancellable)	Synchronously sets up a D-Bus connection for exchanging D-Bus messages with the end represented by stream.
static DBusConnection	sync(IOStream stream, @Nullable String guid, DBusConnectionFlags flags, @Nullable DBusAuthObserver observer, @Nullable Cancellable cancellable)	Synchronously sets up a D-Bus connection for exchanging D-Bus messages with the end represented by stream.
void	unexportActionGroup(int exportId)	Reverses the effect of a previous call to exportActionGroup(java.lang.String, org.gnome.gio.ActionGroup).
void	unexportMenuModel(int exportId)	Reverses the effect of a previous call to g_dbus_connection_export_menu_model().
boolean	unregisterObject(int registrationId)	Unregisters an object.
boolean	unregisterSubtree(int registrationId)	Unregisters a subtree.

Methods inherited from class org.gnome.gobject.GObject

addToggleRef, addWeakPointer, bindProperty, bindProperty, bindProperty, bindPropertyFull, bindPropertyFull, bindPropertyWithClosures, bindPropertyWithClosures, compatControl, connect, connect, connect, constructed, disconnect, dispatchPropertiesChanged, dispose, dupData, dupQdata, emit, emitNotify, finalize_, forceFloating, freezeNotify, get, getData, getMemoryLayout, getProperty, getProperty, getProperty, getQdata, getv, interfaceFindProperty, interfaceInstallProperty, interfaceListProperties, isFloating, newInstance, newInstance, newInstance, newInstance, newv, notify_, notify_, notifyByPspec, onNotify, ref, refSink, removeToggleRef, removeWeakPointer, replaceData, replaceQdata, runDispose, set, setData, setDataFull, setProperty, setProperty, setProperty, setQdata, setQdataFull, setv, stealData, stealQdata, takeRef, thawNotify, unref, watchClosure, weakRef, weakUnref, withProperties

Methods inherited from class org.gnome.gobject.TypeInstance

callParent, callParent, getPrivate, readGClass, writeGClass

Methods inherited from class io.github.jwharm.javagi.base.ProxyInstance

equals, handle, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.gnome.gio.AsyncInitable

initAsync, initFinish

Methods inherited from interface org.gnome.gio.Initable

init

Methods inherited from interface io.github.jwharm.javagi.base.Proxy

handle

Constructor Details

DBusConnection

public DBusConnection(MemorySegment address)

Create a DBusConnection proxy instance for the provided memory address.

Parameters:

address - the memory address of the native object

Method Details

getType

public static Type getType()

Get the GType of the DBusConnection class

Returns:

the GType

asParent

protected DBusConnection asParent()

Returns this instance as if it were its parent type. This is mostly synonymous to the Java super keyword, but will set the native typeclass function pointers to the parent type. When overriding a native virtual method in Java, "chaining up" with super.methodName() doesn't work, because it invokes the overridden function pointer again. To chain up, call asParent().methodName(). This will call the native function pointer of this virtual method in the typeclass of the parent type.

Overrides:

asParent in class GObject

finish

public static DBusConnection finish(AsyncResult res)
                             throws GErrorException

Finishes an operation started with g_dbus_connection_new().

Parameters:

res - a GAsyncResult obtained from the GAsyncReadyCallback passed to g_dbus_connection_new().

Returns:

a GDBusConnection or null if error is set. Free with g_object_unref().

Throws:

GErrorException - see GError

forAddressFinish

public static DBusConnection forAddressFinish(AsyncResult res)
                                       throws GErrorException

Finishes an operation started with g_dbus_connection_new_for_address().

Parameters:

res - a GAsyncResult obtained from the GAsyncReadyCallback passed to g_dbus_connection_new()

Returns:

a GDBusConnection or null if error is set. Free with g_object_unref().

Throws:

GErrorException - see GError

forAddressSync

public static DBusConnection forAddressSync(String address,
 Set<DBusConnectionFlags> flags,
 @Nullable
 @Nullable DBusAuthObserver observer,
 @Nullable
 @Nullable Cancellable cancellable)
                                     throws GErrorException

Synchronously connects and sets up a D-Bus client connection for exchanging D-Bus messages with an endpoint specified by address which must be in the D-Bus address format.

This constructor can only be used to initiate client-side connections - use g_dbus_connection_new_sync() if you need to act as the server. In particular, flags cannot contain the DBusConnectionFlags.AUTHENTICATION_SERVER, DBusConnectionFlags.AUTHENTICATION_ALLOW_ANONYMOUS or DBusConnectionFlags.AUTHENTICATION_REQUIRE_SAME_USER flags.

This is a synchronous failable constructor. See g_dbus_connection_new_for_address() for the asynchronous version.

If observer is not null it may be used to control the authentication process.

Parameters:

address - a D-Bus address

flags - flags describing how to make the connection

observer - a GDBusAuthObserver or null

cancellable - a GCancellable or null

Returns:

a GDBusConnection or null if error is set. Free with g_object_unref().

Throws:

GErrorException - see GError

forAddressSync

public static DBusConnection forAddressSync(String address,
 DBusConnectionFlags flags,
 @Nullable
 @Nullable DBusAuthObserver observer,
 @Nullable
 @Nullable Cancellable cancellable)
                                     throws GErrorException

Synchronously connects and sets up a D-Bus client connection for exchanging D-Bus messages with an endpoint specified by address which must be in the D-Bus address format.

This constructor can only be used to initiate client-side connections - use g_dbus_connection_new_sync() if you need to act as the server. In particular, flags cannot contain the DBusConnectionFlags.AUTHENTICATION_SERVER, DBusConnectionFlags.AUTHENTICATION_ALLOW_ANONYMOUS or DBusConnectionFlags.AUTHENTICATION_REQUIRE_SAME_USER flags.

This is a synchronous failable constructor. See g_dbus_connection_new_for_address() for the asynchronous version.

If observer is not null it may be used to control the authentication process.

Parameters:

address - a D-Bus address

flags - flags describing how to make the connection

observer - a GDBusAuthObserver or null

cancellable - a GCancellable or null

Returns:

a GDBusConnection or null if error is set. Free with g_object_unref().

Throws:

GErrorException - see GError

sync

public static DBusConnection sync(IOStream stream,
 @Nullable
 @Nullable String guid,
 Set<DBusConnectionFlags> flags,
 @Nullable
 @Nullable DBusAuthObserver observer,
 @Nullable
 @Nullable Cancellable cancellable)
                           throws GErrorException

Synchronously sets up a D-Bus connection for exchanging D-Bus messages with the end represented by stream.

If stream is a GSocketConnection, then the corresponding GSocket will be put into non-blocking mode.

The D-Bus connection will interact with stream from a worker thread. As a result, the caller should not interact with stream after this method has been called, except by calling g_object_unref() on it.

If observer is not null it may be used to control the authentication process.

This is a synchronous failable constructor. See g_dbus_connection_new() for the asynchronous version.

Parameters:

stream - a GIOStream

guid - the GUID to use if authenticating as a server or null

flags - flags describing how to make the connection

observer - a GDBusAuthObserver or null

cancellable - a GCancellable or null

Returns:

a GDBusConnection or null if error is set. Free with g_object_unref().

Throws:

GErrorException - see GError

sync

public static DBusConnection sync(IOStream stream,
 @Nullable
 @Nullable String guid,
 DBusConnectionFlags flags,
 @Nullable
 @Nullable DBusAuthObserver observer,
 @Nullable
 @Nullable Cancellable cancellable)
                           throws GErrorException

Synchronously sets up a D-Bus connection for exchanging D-Bus messages with the end represented by stream.

If stream is a GSocketConnection, then the corresponding GSocket will be put into non-blocking mode.

The D-Bus connection will interact with stream from a worker thread. As a result, the caller should not interact with stream after this method has been called, except by calling g_object_unref() on it.

If observer is not null it may be used to control the authentication process.

This is a synchronous failable constructor. See g_dbus_connection_new() for the asynchronous version.

Parameters:

stream - a GIOStream

guid - the GUID to use if authenticating as a server or null

flags - flags describing how to make the connection

observer - a GDBusAuthObserver or null

cancellable - a GCancellable or null

Returns:

a GDBusConnection or null if error is set. Free with g_object_unref().

Throws:

GErrorException - see GError

new_

public static void new_(IOStream stream,
 @Nullable
 @Nullable String guid,
 Set<DBusConnectionFlags> flags,
 @Nullable
 @Nullable DBusAuthObserver observer,
 @Nullable
 @Nullable Cancellable cancellable,
 @Nullable
 @Nullable AsyncReadyCallback callback)

Asynchronously sets up a D-Bus connection for exchanging D-Bus messages with the end represented by stream.

If stream is a GSocketConnection, then the corresponding GSocket will be put into non-blocking mode.

The D-Bus connection will interact with stream from a worker thread. As a result, the caller should not interact with stream after this method has been called, except by calling g_object_unref() on it.

If observer is not null it may be used to control the authentication process.

When the operation is finished, callback will be invoked. You can then call g_dbus_connection_new_finish() to get the result of the operation.

This is an asynchronous failable constructor. See g_dbus_connection_new_sync() for the synchronous version.

Parameters:

stream - a GIOStream

guid - the GUID to use if authenticating as a server or null

flags - flags describing how to make the connection

observer - a GDBusAuthObserver or null

cancellable - a GCancellable or null

callback - a GAsyncReadyCallback to call when the request is satisfied

new_

public static void new_(IOStream stream,
 @Nullable
 @Nullable String guid,
 DBusConnectionFlags flags,
 @Nullable
 @Nullable DBusAuthObserver observer,
 @Nullable
 @Nullable Cancellable cancellable,
 @Nullable
 @Nullable AsyncReadyCallback callback)

Asynchronously sets up a D-Bus connection for exchanging D-Bus messages with the end represented by stream.

If stream is a GSocketConnection, then the corresponding GSocket will be put into non-blocking mode.

The D-Bus connection will interact with stream from a worker thread. As a result, the caller should not interact with stream after this method has been called, except by calling g_object_unref() on it.

If observer is not null it may be used to control the authentication process.

When the operation is finished, callback will be invoked. You can then call g_dbus_connection_new_finish() to get the result of the operation.

This is an asynchronous failable constructor. See g_dbus_connection_new_sync() for the synchronous version.

Parameters:

stream - a GIOStream

guid - the GUID to use if authenticating as a server or null

flags - flags describing how to make the connection

observer - a GDBusAuthObserver or null

cancellable - a GCancellable or null

callback - a GAsyncReadyCallback to call when the request is satisfied

newForAddress

public static void newForAddress(String address,
 Set<DBusConnectionFlags> flags,
 @Nullable
 @Nullable DBusAuthObserver observer,
 @Nullable
 @Nullable Cancellable cancellable,
 @Nullable
 @Nullable AsyncReadyCallback callback)

Asynchronously connects and sets up a D-Bus client connection for exchanging D-Bus messages with an endpoint specified by address which must be in the D-Bus address format.

This constructor can only be used to initiate client-side connections - use g_dbus_connection_new() if you need to act as the server. In particular, flags cannot contain the DBusConnectionFlags.AUTHENTICATION_SERVER, DBusConnectionFlags.AUTHENTICATION_ALLOW_ANONYMOUS or DBusConnectionFlags.AUTHENTICATION_REQUIRE_SAME_USER flags.

When the operation is finished, callback will be invoked. You can then call g_dbus_connection_new_for_address_finish() to get the result of the operation.

If observer is not null it may be used to control the authentication process.

This is an asynchronous failable constructor. See g_dbus_connection_new_for_address_sync() for the synchronous version.

Parameters:

address - a D-Bus address

flags - flags describing how to make the connection

observer - a GDBusAuthObserver or null

cancellable - a GCancellable or null

callback - a GAsyncReadyCallback to call when the request is satisfied

newForAddress

public static void newForAddress(String address,
 DBusConnectionFlags flags,
 @Nullable
 @Nullable DBusAuthObserver observer,
 @Nullable
 @Nullable Cancellable cancellable,
 @Nullable
 @Nullable AsyncReadyCallback callback)

Asynchronously connects and sets up a D-Bus client connection for exchanging D-Bus messages with an endpoint specified by address which must be in the D-Bus address format.

This constructor can only be used to initiate client-side connections - use g_dbus_connection_new() if you need to act as the server. In particular, flags cannot contain the DBusConnectionFlags.AUTHENTICATION_SERVER, DBusConnectionFlags.AUTHENTICATION_ALLOW_ANONYMOUS or DBusConnectionFlags.AUTHENTICATION_REQUIRE_SAME_USER flags.

When the operation is finished, callback will be invoked. You can then call g_dbus_connection_new_for_address_finish() to get the result of the operation.

If observer is not null it may be used to control the authentication process.

This is an asynchronous failable constructor. See g_dbus_connection_new_for_address_sync() for the synchronous version.

Parameters:

address - a D-Bus address

flags - flags describing how to make the connection

observer - a GDBusAuthObserver or null

cancellable - a GCancellable or null

callback - a GAsyncReadyCallback to call when the request is satisfied

addFilter

public int addFilter(DBusMessageFilterFunction filterFunction)

Adds a message filter. Filters are handlers that are run on all incoming and outgoing messages, prior to standard dispatch. Filters are run in the order that they were added. The same handler can be added as a filter more than once, in which case it will be run more than once. Filters added during a filter callback won't be run on the message being processed. Filter functions are allowed to modify and even drop messages.

Note that filters are run in a dedicated message handling thread so they can't block and, generally, can't do anything but signal a worker thread. Also note that filters are rarely needed - use API such as g_dbus_connection_send_message_with_reply(), g_dbus_connection_signal_subscribe() or g_dbus_connection_call() instead.

If a filter consumes an incoming message the message is not dispatched anywhere else - not even the standard dispatch machinery (that API such as g_dbus_connection_signal_subscribe() and g_dbus_connection_send_message_with_reply() relies on) will see the message. Similarly, if a filter consumes an outgoing message, the message will not be sent to the other peer.

If userDataFreeFunc is non-null, it will be called (in the thread-default main context of the thread you are calling this method from) at some point after userData is no longer needed. (It is not guaranteed to be called synchronously when the filter is removed, and may be called after this DBusConnection has been destroyed.)

Parameters:

filterFunction - a filter function

Returns:

a filter identifier that can be used with g_dbus_connection_remove_filter()

call

public void call(@Nullable
 @Nullable String busName,
 String objectPath,
 String interfaceName,
 String methodName,
 @Nullable
 @Nullable Variant parameters,
 @Nullable
 @Nullable VariantType replyType,
 Set<DBusCallFlags> flags,
 int timeoutMsec,
 @Nullable
 @Nullable Cancellable cancellable,
 @Nullable
 @Nullable AsyncReadyCallback callback)

Asynchronously invokes the methodName method on the interfaceName D-Bus interface on the remote object at objectPath owned by busName.

If this DBusConnection is closed then the operation will fail with IOErrorEnum.CLOSED. If cancellable is canceled, the operation will fail with IOErrorEnum.CANCELLED. If parameters contains a value not compatible with the D-Bus protocol, the operation fails with IOErrorEnum.INVALID_ARGUMENT.

If replyType is non-null then the reply will be checked for having this type and an error will be raised if it does not match. Said another way, if you give a replyType then any non-null return value will be of this type. Unless it’s G_VARIANT_TYPE_UNIT, the replyType will be a tuple containing one or more values.

If the parameters GVariant is floating, it is consumed. This allows convenient 'inline' use of g_variant_new(), e.g.:

 g_dbus_connection_call (connection,
                          "org.freedesktop.StringThings",
                          "/org/freedesktop/StringThings",
                          "org.freedesktop.StringThings",
                          "TwoStrings",
                          g_variant_new ("(ss)",
                                         "Thing One",
                                         "Thing Two"),
                          NULL,
                          G_DBUS_CALL_FLAGS_NONE,
                          -1,
                          NULL,
                          (GAsyncReadyCallback) two_strings_done,
                          NULL);
 

This is an asynchronous method. When the operation is finished, callback will be invoked in the [thread-default main context][g-main-context-push-thread-default] of the thread you are calling this method from. You can then call g_dbus_connection_call_finish() to get the result of the operation. See g_dbus_connection_call_sync() for the synchronous version of this function.

If callback is null then the D-Bus method call message will be sent with the DBusMessageFlags.NO_REPLY_EXPECTED flag set.

Parameters:

busName - a unique or well-known bus name or null if this DBusConnection is not a message bus connection

objectPath - path of remote object

interfaceName - D-Bus interface to invoke method on

methodName - the name of the method to invoke

parameters - a GVariant tuple with parameters for the method or null if not passing parameters

replyType - the expected type of the reply (which will be a tuple), or null

flags - flags from the GDBusCallFlags enumeration

timeoutMsec - the timeout in milliseconds, -1 to use the default timeout or G_MAXINT for no timeout

cancellable - a GCancellable or null

callback - a GAsyncReadyCallback to call when the request is satisfied or null if you don't care about the result of the method invocation

call

public void call(@Nullable
 @Nullable String busName,
 String objectPath,
 String interfaceName,
 String methodName,
 @Nullable
 @Nullable Variant parameters,
 @Nullable
 @Nullable VariantType replyType,
 DBusCallFlags flags,
 int timeoutMsec,
 @Nullable
 @Nullable Cancellable cancellable,
 @Nullable
 @Nullable AsyncReadyCallback callback)

Asynchronously invokes the methodName method on the interfaceName D-Bus interface on the remote object at objectPath owned by busName.

If this DBusConnection is closed then the operation will fail with IOErrorEnum.CLOSED. If cancellable is canceled, the operation will fail with IOErrorEnum.CANCELLED. If parameters contains a value not compatible with the D-Bus protocol, the operation fails with IOErrorEnum.INVALID_ARGUMENT.

If replyType is non-null then the reply will be checked for having this type and an error will be raised if it does not match. Said another way, if you give a replyType then any non-null return value will be of this type. Unless it’s G_VARIANT_TYPE_UNIT, the replyType will be a tuple containing one or more values.

If the parameters GVariant is floating, it is consumed. This allows convenient 'inline' use of g_variant_new(), e.g.:

 g_dbus_connection_call (connection,
                          "org.freedesktop.StringThings",
                          "/org/freedesktop/StringThings",
                          "org.freedesktop.StringThings",
                          "TwoStrings",
                          g_variant_new ("(ss)",
                                         "Thing One",
                                         "Thing Two"),
                          NULL,
                          G_DBUS_CALL_FLAGS_NONE,
                          -1,
                          NULL,
                          (GAsyncReadyCallback) two_strings_done,
                          NULL);
 

This is an asynchronous method. When the operation is finished, callback will be invoked in the [thread-default main context][g-main-context-push-thread-default] of the thread you are calling this method from. You can then call g_dbus_connection_call_finish() to get the result of the operation. See g_dbus_connection_call_sync() for the synchronous version of this function.

If callback is null then the D-Bus method call message will be sent with the DBusMessageFlags.NO_REPLY_EXPECTED flag set.

Parameters:

busName - a unique or well-known bus name or null if this DBusConnection is not a message bus connection

objectPath - path of remote object

interfaceName - D-Bus interface to invoke method on

methodName - the name of the method to invoke

parameters - a GVariant tuple with parameters for the method or null if not passing parameters

replyType - the expected type of the reply (which will be a tuple), or null

flags - flags from the GDBusCallFlags enumeration

timeoutMsec - the timeout in milliseconds, -1 to use the default timeout or G_MAXINT for no timeout

cancellable - a GCancellable or null

callback - a GAsyncReadyCallback to call when the request is satisfied or null if you don't care about the result of the method invocation

callFinish

public Variant callFinish(AsyncResult res)
                   throws GErrorException

Finishes an operation started with g_dbus_connection_call().

Parameters:

res - a GAsyncResult obtained from the GAsyncReadyCallback passed to g_dbus_connection_call()

Returns:

null if error is set. Otherwise a non-floating GVariant tuple with return values. Free with g_variant_unref().

Throws:

GErrorException - see GError

callSync

public Variant callSync(@Nullable
 @Nullable String busName,
 String objectPath,
 String interfaceName,
 String methodName,
 @Nullable
 @Nullable Variant parameters,
 @Nullable
 @Nullable VariantType replyType,
 Set<DBusCallFlags> flags,
 int timeoutMsec,
 @Nullable
 @Nullable Cancellable cancellable)
                 throws GErrorException

Synchronously invokes the methodName method on the interfaceName D-Bus interface on the remote object at objectPath owned by busName.

If this DBusConnection is closed then the operation will fail with IOErrorEnum.CLOSED. If cancellable is canceled, the operation will fail with IOErrorEnum.CANCELLED. If parameters contains a value not compatible with the D-Bus protocol, the operation fails with IOErrorEnum.INVALID_ARGUMENT.

If replyType is non-null then the reply will be checked for having this type and an error will be raised if it does not match. Said another way, if you give a replyType then any non-null return value will be of this type.

If the parameters GVariant is floating, it is consumed. This allows convenient 'inline' use of g_variant_new(), e.g.:

 g_dbus_connection_call_sync (connection,
                               "org.freedesktop.StringThings",
                               "/org/freedesktop/StringThings",
                               "org.freedesktop.StringThings",
                               "TwoStrings",
                               g_variant_new ("(ss)",
                                              "Thing One",
                                              "Thing Two"),
                               NULL,
                               G_DBUS_CALL_FLAGS_NONE,
                               -1,
                               NULL,
                               &error);
 

The calling thread is blocked until a reply is received. See g_dbus_connection_call() for the asynchronous version of this method.

Parameters:

busName - a unique or well-known bus name or null if this DBusConnection is not a message bus connection

objectPath - path of remote object

interfaceName - D-Bus interface to invoke method on

methodName - the name of the method to invoke

parameters - a GVariant tuple with parameters for the method or null if not passing parameters

replyType - the expected type of the reply, or null

flags - flags from the GDBusCallFlags enumeration

timeoutMsec - the timeout in milliseconds, -1 to use the default timeout or G_MAXINT for no timeout

cancellable - a GCancellable or null

Returns:

null if error is set. Otherwise a non-floating GVariant tuple with return values. Free with g_variant_unref().

Throws:

GErrorException - see GError

callSync

public Variant callSync(@Nullable
 @Nullable String busName,
 String objectPath,
 String interfaceName,
 String methodName,
 @Nullable
 @Nullable Variant parameters,
 @Nullable
 @Nullable VariantType replyType,
 DBusCallFlags flags,
 int timeoutMsec,
 @Nullable
 @Nullable Cancellable cancellable)
                 throws GErrorException

Synchronously invokes the methodName method on the interfaceName D-Bus interface on the remote object at objectPath owned by busName.

If this DBusConnection is closed then the operation will fail with IOErrorEnum.CLOSED. If cancellable is canceled, the operation will fail with IOErrorEnum.CANCELLED. If parameters contains a value not compatible with the D-Bus protocol, the operation fails with IOErrorEnum.INVALID_ARGUMENT.

If replyType is non-null then the reply will be checked for having this type and an error will be raised if it does not match. Said another way, if you give a replyType then any non-null return value will be of this type.

If the parameters GVariant is floating, it is consumed. This allows convenient 'inline' use of g_variant_new(), e.g.:

 g_dbus_connection_call_sync (connection,
                               "org.freedesktop.StringThings",
                               "/org/freedesktop/StringThings",
                               "org.freedesktop.StringThings",
                               "TwoStrings",
                               g_variant_new ("(ss)",
                                              "Thing One",
                                              "Thing Two"),
                               NULL,
                               G_DBUS_CALL_FLAGS_NONE,
                               -1,
                               NULL,
                               &error);
 

The calling thread is blocked until a reply is received. See g_dbus_connection_call() for the asynchronous version of this method.

Parameters:

busName - a unique or well-known bus name or null if this DBusConnection is not a message bus connection

objectPath - path of remote object

interfaceName - D-Bus interface to invoke method on

methodName - the name of the method to invoke

parameters - a GVariant tuple with parameters for the method or null if not passing parameters

replyType - the expected type of the reply, or null

flags - flags from the GDBusCallFlags enumeration

timeoutMsec - the timeout in milliseconds, -1 to use the default timeout or G_MAXINT for no timeout

cancellable - a GCancellable or null

Returns:

null if error is set. Otherwise a non-floating GVariant tuple with return values. Free with g_variant_unref().

Throws:

GErrorException - see GError

callWithUnixFdList

public void callWithUnixFdList(@Nullable
 @Nullable String busName,
 String objectPath,
 String interfaceName,
 String methodName,
 @Nullable
 @Nullable Variant parameters,
 @Nullable
 @Nullable VariantType replyType,
 Set<DBusCallFlags> flags,
 int timeoutMsec,
 @Nullable
 @Nullable UnixFDList fdList,
 @Nullable
 @Nullable Cancellable cancellable,
 @Nullable
 @Nullable AsyncReadyCallback callback)

Like g_dbus_connection_call() but also takes a GUnixFDList object.

The file descriptors normally correspond to G_VARIANT_TYPE_HANDLE values in the body of the message. For example, if a message contains two file descriptors, fdList would have length 2, and g_variant_new_handle (0) and g_variant_new_handle (1) would appear somewhere in the body of the message (not necessarily in that order!) to represent the file descriptors at indexes 0 and 1 respectively.

When designing D-Bus APIs that are intended to be interoperable, please note that non-GDBus implementations of D-Bus can usually only access file descriptors if they are referenced in this way by a value of type G_VARIANT_TYPE_HANDLE in the body of the message.

This method is only available on UNIX.

Parameters:

busName - a unique or well-known bus name or null if this DBusConnection is not a message bus connection

objectPath - path of remote object

interfaceName - D-Bus interface to invoke method on

methodName - the name of the method to invoke

parameters - a GVariant tuple with parameters for the method or null if not passing parameters

replyType - the expected type of the reply, or null

flags - flags from the GDBusCallFlags enumeration

timeoutMsec - the timeout in milliseconds, -1 to use the default timeout or G_MAXINT for no timeout

fdList - a GUnixFDList or null

cancellable - a GCancellable or null

callback - a GAsyncReadyCallback to call when the request is satisfied or null if you don't * care about the result of the method invocation

callWithUnixFdList

public void callWithUnixFdList(@Nullable
 @Nullable String busName,
 String objectPath,
 String interfaceName,
 String methodName,
 @Nullable
 @Nullable Variant parameters,
 @Nullable
 @Nullable VariantType replyType,
 DBusCallFlags flags,
 int timeoutMsec,
 @Nullable
 @Nullable UnixFDList fdList,
 @Nullable
 @Nullable Cancellable cancellable,
 @Nullable
 @Nullable AsyncReadyCallback callback)

Like g_dbus_connection_call() but also takes a GUnixFDList object.

The file descriptors normally correspond to G_VARIANT_TYPE_HANDLE values in the body of the message. For example, if a message contains two file descriptors, fdList would have length 2, and g_variant_new_handle (0) and g_variant_new_handle (1) would appear somewhere in the body of the message (not necessarily in that order!) to represent the file descriptors at indexes 0 and 1 respectively.

When designing D-Bus APIs that are intended to be interoperable, please note that non-GDBus implementations of D-Bus can usually only access file descriptors if they are referenced in this way by a value of type G_VARIANT_TYPE_HANDLE in the body of the message.

This method is only available on UNIX.

Parameters:

busName - a unique or well-known bus name or null if this DBusConnection is not a message bus connection

objectPath - path of remote object

interfaceName - D-Bus interface to invoke method on

methodName - the name of the method to invoke

parameters - a GVariant tuple with parameters for the method or null if not passing parameters

replyType - the expected type of the reply, or null

flags - flags from the GDBusCallFlags enumeration

timeoutMsec - the timeout in milliseconds, -1 to use the default timeout or G_MAXINT for no timeout

fdList - a GUnixFDList or null

cancellable - a GCancellable or null

callback - a GAsyncReadyCallback to call when the request is satisfied or null if you don't * care about the result of the method invocation

callWithUnixFdListFinish

public Variant callWithUnixFdListFinish(@Nullable
 @Nullable Out<UnixFDList> outFdList,
 AsyncResult res)
                                 throws GErrorException

Finishes an operation started with g_dbus_connection_call_with_unix_fd_list().

The file descriptors normally correspond to G_VARIANT_TYPE_HANDLE values in the body of the message. For example, if g_variant_get_handle() returns 5, that is intended to be a reference to the file descriptor that can be accessed by g_unix_fd_list_get (*out_fd_list, 5, ...).

When designing D-Bus APIs that are intended to be interoperable, please note that non-GDBus implementations of D-Bus can usually only access file descriptors if they are referenced in this way by a value of type G_VARIANT_TYPE_HANDLE in the body of the message.

Parameters:

outFdList - return location for a GUnixFDList or null

res - a GAsyncResult obtained from the GAsyncReadyCallback passed to g_dbus_connection_call_with_unix_fd_list()

Returns:

null if error is set. Otherwise a non-floating GVariant tuple with return values. Free with g_variant_unref().

Throws:

GErrorException - see GError

callWithUnixFdListSync

public Variant callWithUnixFdListSync(@Nullable
 @Nullable String busName,
 String objectPath,
 String interfaceName,
 String methodName,
 @Nullable
 @Nullable Variant parameters,
 @Nullable
 @Nullable VariantType replyType,
 Set<DBusCallFlags> flags,
 int timeoutMsec,
 @Nullable
 @Nullable UnixFDList fdList,
 @Nullable
 @Nullable Out<UnixFDList> outFdList,
 @Nullable
 @Nullable Cancellable cancellable)
                               throws GErrorException

Like g_dbus_connection_call_sync() but also takes and returns GUnixFDList objects. See g_dbus_connection_call_with_unix_fd_list() and g_dbus_connection_call_with_unix_fd_list_finish() for more details.

This method is only available on UNIX.

Parameters:

busName - a unique or well-known bus name or null if this DBusConnection is not a message bus connection

objectPath - path of remote object

interfaceName - D-Bus interface to invoke method on

methodName - the name of the method to invoke

parameters - a GVariant tuple with parameters for the method or null if not passing parameters

replyType - the expected type of the reply, or null

flags - flags from the GDBusCallFlags enumeration

timeoutMsec - the timeout in milliseconds, -1 to use the default timeout or G_MAXINT for no timeout

fdList - a GUnixFDList or null

outFdList - return location for a GUnixFDList or null

cancellable - a GCancellable or null

Returns:

null if error is set. Otherwise a non-floating GVariant tuple with return values. Free with g_variant_unref().

Throws:

GErrorException - see GError

callWithUnixFdListSync

public Variant callWithUnixFdListSync(@Nullable
 @Nullable String busName,
 String objectPath,
 String interfaceName,
 String methodName,
 @Nullable
 @Nullable Variant parameters,
 @Nullable
 @Nullable VariantType replyType,
 DBusCallFlags flags,
 int timeoutMsec,
 @Nullable
 @Nullable UnixFDList fdList,
 @Nullable
 @Nullable Out<UnixFDList> outFdList,
 @Nullable
 @Nullable Cancellable cancellable)
                               throws GErrorException

Like g_dbus_connection_call_sync() but also takes and returns GUnixFDList objects. See g_dbus_connection_call_with_unix_fd_list() and g_dbus_connection_call_with_unix_fd_list_finish() for more details.

This method is only available on UNIX.

Parameters:

busName - a unique or well-known bus name or null if this DBusConnection is not a message bus connection

objectPath - path of remote object

interfaceName - D-Bus interface to invoke method on

methodName - the name of the method to invoke

parameters - a GVariant tuple with parameters for the method or null if not passing parameters

replyType - the expected type of the reply, or null

flags - flags from the GDBusCallFlags enumeration

timeoutMsec - the timeout in milliseconds, -1 to use the default timeout or G_MAXINT for no timeout

fdList - a GUnixFDList or null

outFdList - return location for a GUnixFDList or null

cancellable - a GCancellable or null

Returns:

null if error is set. Otherwise a non-floating GVariant tuple with return values. Free with g_variant_unref().

Throws:

GErrorException - see GError

close

public void close(@Nullable
 @Nullable Cancellable cancellable,
 @Nullable
 @Nullable AsyncReadyCallback callback)

Closes this DBusConnection. Note that this never causes the process to exit (this might only happen if the other end of a shared message bus connection disconnects, see GDBusConnection:exit-on-close).

Once the connection is closed, operations such as sending a message will return with the error IOErrorEnum.CLOSED. Closing a connection will not automatically flush the connection so queued messages may be lost. Use g_dbus_connection_flush() if you need such guarantees.

If this DBusConnection is already closed, this method fails with IOErrorEnum.CLOSED.

When this DBusConnection has been closed, the GDBusConnection::closed signal is emitted in the [thread-default main context][g-main-context-push-thread-default] of the thread that this DBusConnection was constructed in.

This is an asynchronous method. When the operation is finished, callback will be invoked in the [thread-default main context][g-main-context-push-thread-default] of the thread you are calling this method from. You can then call g_dbus_connection_close_finish() to get the result of the operation. See g_dbus_connection_close_sync() for the synchronous version.

Parameters:

cancellable - a GCancellable or null

callback - a GAsyncReadyCallback to call when the request is satisfied or null if you don't care about the result

closeFinish

public boolean closeFinish(AsyncResult res)
                    throws GErrorException

Finishes an operation started with g_dbus_connection_close().

Parameters:

res - a GAsyncResult obtained from the GAsyncReadyCallback passed to g_dbus_connection_close()

Returns:

true if the operation succeeded, false if error is set

Throws:

GErrorException - see GError

closeSync

public boolean closeSync(@Nullable
 @Nullable Cancellable cancellable)
                  throws GErrorException

Synchronously closes this DBusConnection. The calling thread is blocked until this is done. See g_dbus_connection_close() for the asynchronous version of this method and more details about what it does.

Parameters:

cancellable - a GCancellable or null

Returns:

true if the operation succeeded, false if error is set

Throws:

GErrorException - see GError

emitSignal

public boolean emitSignal(@Nullable
 @Nullable String destinationBusName,
 String objectPath,
 String interfaceName,
 String signalName,
 @Nullable
 @Nullable Variant parameters)
                   throws GErrorException

Emits a signal.

If the parameters GVariant is floating, it is consumed.

This can only fail if parameters is not compatible with the D-Bus protocol (IOErrorEnum.INVALID_ARGUMENT), or if this DBusConnection has been closed (IOErrorEnum.CLOSED).

Parameters:

destinationBusName - the unique bus name for the destination for the signal or null to emit to all listeners

objectPath - path of remote object

interfaceName - D-Bus interface to emit a signal on

signalName - the name of the signal to emit

parameters - a GVariant tuple with parameters for the signal or null if not passing parameters

Returns:

true unless error is set

Throws:

GErrorException - see GError

exportActionGroup

public int exportActionGroup(String objectPath,
 ActionGroup actionGroup)
                      throws GErrorException

Exports actionGroup on this DBusConnection at objectPath.

The implemented D-Bus API should be considered private. It is subject to change in the future.

A given object path can only have one action group exported on it. If this constraint is violated, the export will fail and 0 will be returned (with error set accordingly).

You can unexport the action group using unexportActionGroup(int) with the return value of this function.

The thread default main context is taken at the time of this call. All incoming action activations and state change requests are reported from this context. Any changes on the action group that cause it to emit signals must also come from this same context. Since incoming action activations and state change requests are rather likely to cause changes on the action group, this effectively limits a given action group to being exported from only one main context.

Parameters:

objectPath - a D-Bus object path

actionGroup - an action group

Returns:

the ID of the export (never zero), or 0 in case of failure

Throws:

GErrorException - see GError

exportMenuModel

public int exportMenuModel(String objectPath,
 MenuModel menu)
                    throws GErrorException

Exports menu on this DBusConnection at objectPath.

The implemented D-Bus API should be considered private. It is subject to change in the future.

An object path can only have one menu model exported on it. If this constraint is violated, the export will fail and 0 will be returned (with error set accordingly).

Exporting menus with sections containing more than G_MENU_EXPORTER_MAX_SECTION_SIZE items is not supported and results in undefined behavior.

You can unexport the menu model using g_dbus_connection_unexport_menu_model() with the return value of this function.

Parameters:

objectPath - a D-Bus object path

menu - a GMenuModel

Returns:

the ID of the export (never zero), or 0 in case of failure

Throws:

GErrorException - see GError

flush

public void flush(@Nullable
 @Nullable Cancellable cancellable,
 @Nullable
 @Nullable AsyncReadyCallback callback)

Asynchronously flushes this DBusConnection, that is, writes all queued outgoing message to the transport and then flushes the transport (using g_output_stream_flush_async()). This is useful in programs that wants to emit a D-Bus signal and then exit immediately. Without flushing the connection, there is no guaranteed that the message has been sent to the networking buffers in the OS kernel.

This is an asynchronous method. When the operation is finished, callback will be invoked in the [thread-default main context][g-main-context-push-thread-default] of the thread you are calling this method from. You can then call g_dbus_connection_flush_finish() to get the result of the operation. See g_dbus_connection_flush_sync() for the synchronous version.

Parameters:

cancellable - a GCancellable or null

callback - a GAsyncReadyCallback to call when the request is satisfied or null if you don't care about the result

flushFinish

public boolean flushFinish(AsyncResult res)
                    throws GErrorException

Finishes an operation started with g_dbus_connection_flush().

Parameters:

res - a GAsyncResult obtained from the GAsyncReadyCallback passed to g_dbus_connection_flush()

Returns:

true if the operation succeeded, false if error is set

Throws:

GErrorException - see GError

flushSync

public boolean flushSync(@Nullable
 @Nullable Cancellable cancellable)
                  throws GErrorException

Synchronously flushes this DBusConnection. The calling thread is blocked until this is done. See g_dbus_connection_flush() for the asynchronous version of this method and more details about what it does.

Parameters:

cancellable - a GCancellable or null

Returns:

true if the operation succeeded, false if error is set

Throws:

GErrorException - see GError

getCapabilities

public Set<DBusCapabilityFlags> getCapabilities()

Gets the capabilities negotiated with the remote peer

Returns:

zero or more flags from the GDBusCapabilityFlags enumeration

getExitOnClose

public boolean getExitOnClose()

Gets whether the process is terminated when this DBusConnection is closed by the remote peer. See GDBusConnection:exit-on-close for more details.

Returns:

whether the process is terminated when this DBusConnection is closed by the remote peer

getFlags

public Set<DBusConnectionFlags> getFlags()

Gets the flags used to construct this connection

Returns:

zero or more flags from the GDBusConnectionFlags enumeration

getGuid

public String getGuid()

The GUID of the peer performing the role of server when authenticating. See GDBusConnection:guid for more details.

Returns:

The GUID. Do not free this string, it is owned by this DBusConnection.

getLastSerial

public int getLastSerial()

Retrieves the last serial number assigned to a GDBusMessage on the current thread. This includes messages sent via both low-level API such as g_dbus_connection_send_message() as well as high-level API such as g_dbus_connection_emit_signal(), g_dbus_connection_call() or g_dbus_proxy_call().

Returns:

the last used serial or zero when no message has been sent within the current thread

getPeerCredentials

public Credentials getPeerCredentials()

Gets the credentials of the authenticated peer. This will always return null unless this DBusConnection acted as a server (e.g. DBusConnectionFlags.AUTHENTICATION_SERVER was passed) when set up and the client passed credentials as part of the authentication process.

In a message bus setup, the message bus is always the server and each application is a client. So this method will always return null for message bus clients.

Returns:

a GCredentials or null if not available. Do not free this object, it is owned by this DBusConnection.

getStream

public IOStream getStream()

Gets the underlying stream used for IO.

While the GDBusConnection is active, it will interact with this stream from a worker thread, so it is not safe to interact with the stream directly.

Returns:

the stream used for IO

getUniqueName

public String getUniqueName()

Gets the unique name of this DBusConnection as assigned by the message bus. This can also be used to figure out if this DBusConnection is a message bus connection.

Returns:

the unique name or null if this DBusConnection is not a message bus connection. Do not free this string, it is owned by this DBusConnection.

isClosed

public boolean isClosed()

Gets whether this DBusConnection is closed.

Returns:

true if the connection is closed, false otherwise

registerObject

public int registerObject(String objectPath,
 DBusInterfaceInfo interfaceInfo,
 @Nullable
 @Nullable DBusInterfaceVTable vtable,
 @Nullable
 @Nullable MemorySegment userData)
                   throws GErrorException

Registers callbacks for exported objects at objectPath with the D-Bus interface that is described in interfaceInfo.

Calls to functions in vtable (and userDataFreeFunc) will happen in the [thread-default main context][g-main-context-push-thread-default] of the thread you are calling this method from.

Note that all GVariant values passed to functions in vtable will match the signature given in interfaceInfo - if a remote caller passes incorrect values, the org.freedesktop.DBus.Error.InvalidArgs is returned to the remote caller.

Additionally, if the remote caller attempts to invoke methods or access properties not mentioned in interfaceInfo the org.freedesktop.DBus.Error.UnknownMethod resp. org.freedesktop.DBus.Error.InvalidArgs errors are returned to the caller.

It is considered a programming error if the GDBusInterfaceGetPropertyFunc function in vtable returns a GVariant of incorrect type.

If an existing callback is already registered at objectPath and interfaceName, then error is set to IOErrorEnum.EXISTS.

GDBus automatically implements the standard D-Bus interfaces org.freedesktop.DBus.Properties, org.freedesktop.DBus.Introspectable and org.freedesktop.Peer, so you don't have to implement those for the objects you export. You can implement org.freedesktop.DBus.Properties yourself, e.g. to handle getting and setting of properties asynchronously.

Note that the reference count on interfaceInfo will be incremented by 1 (unless allocated statically, e.g. if the reference count is -1, see g_dbus_interface_info_ref()) for as long as the object is exported. Also note that vtable will be copied.

See this [server][gdbus-server] for an example of how to use this method.

Parameters:

objectPath - the object path to register at

interfaceInfo - introspection data for the interface

vtable - a GDBusInterfaceVTable to call into or null

userData - data to pass to functions in vtable

Returns:

0 if error is set, otherwise a registration id (never 0) that can be used with g_dbus_connection_unregister_object()

Throws:

GErrorException - see GError

registerObjectWithClosures

public int registerObjectWithClosures(String objectPath,
 DBusInterfaceInfo interfaceInfo,
 @Nullable
 @Nullable Closure methodCallClosure,
 @Nullable
 @Nullable Closure getPropertyClosure,
 @Nullable
 @Nullable Closure setPropertyClosure)
                               throws GErrorException

Version of g_dbus_connection_register_object() using closures instead of a GDBusInterfaceVTable for easier binding in other languages.

Parameters:

objectPath - The object path to register at.

interfaceInfo - Introspection data for the interface.

methodCallClosure - GClosure for handling incoming method calls.

getPropertyClosure - GClosure for getting a property.

setPropertyClosure - GClosure for setting a property.

Returns:

0 if error is set, otherwise a registration ID (never 0) that can be used with g_dbus_connection_unregister_object() .

Throws:

GErrorException - see GError

registerSubtree

public int registerSubtree(String objectPath,
 DBusSubtreeVTable vtable,
 Set<DBusSubtreeFlags> flags,
 @Nullable
 @Nullable MemorySegment userData)
                    throws GErrorException

Registers a whole subtree of dynamic objects.

The enumerate and introspection functions in vtable are used to convey, to remote callers, what nodes exist in the subtree rooted by objectPath.

When handling remote calls into any node in the subtree, first the enumerate function is used to check if the node exists. If the node exists or the DBusSubtreeFlags.DISPATCH_TO_UNENUMERATED_NODES flag is set the introspection function is used to check if the node supports the requested method. If so, the dispatch function is used to determine where to dispatch the call. The collected GDBusInterfaceVTable and gpointer will be used to call into the interface vtable for processing the request.

All calls into user-provided code will be invoked in the [thread-default main context][g-main-context-push-thread-default] of the thread you are calling this method from.

If an existing subtree is already registered at objectPath or then error is set to IOErrorEnum.EXISTS.

Note that it is valid to register regular objects (using g_dbus_connection_register_object()) in a subtree registered with g_dbus_connection_register_subtree() - if so, the subtree handler is tried as the last resort. One way to think about a subtree handler is to consider it a fallback handler for object paths not registered via g_dbus_connection_register_object() or other bindings.

Note that vtable will be copied so you cannot change it after registration.

See this [server][gdbus-subtree-server] for an example of how to use this method.

Parameters:

objectPath - the object path to register the subtree at

vtable - a GDBusSubtreeVTable to enumerate, introspect and dispatch nodes in the subtree

flags - flags used to fine tune the behavior of the subtree

userData - data to pass to functions in vtable

Returns:

0 if error is set, otherwise a subtree registration ID (never 0) that can be used with g_dbus_connection_unregister_subtree()

Throws:

GErrorException - see GError

registerSubtree

public int registerSubtree(String objectPath,
 DBusSubtreeVTable vtable,
 DBusSubtreeFlags flags,
 @Nullable
 @Nullable MemorySegment userData)
                    throws GErrorException

Registers a whole subtree of dynamic objects.

The enumerate and introspection functions in vtable are used to convey, to remote callers, what nodes exist in the subtree rooted by objectPath.

When handling remote calls into any node in the subtree, first the enumerate function is used to check if the node exists. If the node exists or the DBusSubtreeFlags.DISPATCH_TO_UNENUMERATED_NODES flag is set the introspection function is used to check if the node supports the requested method. If so, the dispatch function is used to determine where to dispatch the call. The collected GDBusInterfaceVTable and gpointer will be used to call into the interface vtable for processing the request.

All calls into user-provided code will be invoked in the [thread-default main context][g-main-context-push-thread-default] of the thread you are calling this method from.

If an existing subtree is already registered at objectPath or then error is set to IOErrorEnum.EXISTS.

Note that it is valid to register regular objects (using g_dbus_connection_register_object()) in a subtree registered with g_dbus_connection_register_subtree() - if so, the subtree handler is tried as the last resort. One way to think about a subtree handler is to consider it a fallback handler for object paths not registered via g_dbus_connection_register_object() or other bindings.

Note that vtable will be copied so you cannot change it after registration.

See this [server][gdbus-subtree-server] for an example of how to use this method.

Parameters:

objectPath - the object path to register the subtree at

vtable - a GDBusSubtreeVTable to enumerate, introspect and dispatch nodes in the subtree

flags - flags used to fine tune the behavior of the subtree

userData - data to pass to functions in vtable

Returns:

0 if error is set, otherwise a subtree registration ID (never 0) that can be used with g_dbus_connection_unregister_subtree()

Throws:

GErrorException - see GError

removeFilter

public void removeFilter(int filterId)

Removes a filter.

Note that since filters run in a different thread, there is a race condition where it is possible that the filter will be running even after calling g_dbus_connection_remove_filter(), so you cannot just free data that the filter might be using. Instead, you should pass a GDestroyNotify to g_dbus_connection_add_filter(), which will be called when it is guaranteed that the data is no longer needed.

Parameters:

filterId - an identifier obtained from g_dbus_connection_add_filter()

sendMessage

public boolean sendMessage(DBusMessage message,
 Set<DBusSendMessageFlags> flags,
 @Nullable
 @Nullable Out<Integer> outSerial)
                    throws GErrorException

Asynchronously sends message to the peer represented by this DBusConnection.

Unless flags contain the DBusSendMessageFlags.PRESERVE_SERIAL flag, the serial number will be assigned by this DBusConnection and set on message via g_dbus_message_set_serial(). If outSerial is not null, then the serial number used will be written to this location prior to submitting the message to the underlying transport. While it has a volatile qualifier, this is a historical artifact and the argument passed to it should not be volatile.

If this DBusConnection is closed then the operation will fail with IOErrorEnum.CLOSED. If message is not well-formed, the operation fails with IOErrorEnum.INVALID_ARGUMENT.

See this [server][gdbus-server] and [client][gdbus-unix-fd-client] for an example of how to use this low-level API to send and receive UNIX file descriptors.

Note that message must be unlocked, unless flags contain the DBusSendMessageFlags.PRESERVE_SERIAL flag.

Parameters:

message - a GDBusMessage

flags - flags affecting how the message is sent

outSerial - return location for serial number assigned to message when sending it or null

Returns:

true if the message was well-formed and queued for transmission, false if error is set

Throws:

GErrorException - see GError

sendMessage

public boolean sendMessage(DBusMessage message,
 DBusSendMessageFlags flags,
 @Nullable
 @Nullable Out<Integer> outSerial)
                    throws GErrorException

Asynchronously sends message to the peer represented by this DBusConnection.

Unless flags contain the DBusSendMessageFlags.PRESERVE_SERIAL flag, the serial number will be assigned by this DBusConnection and set on message via g_dbus_message_set_serial(). If outSerial is not null, then the serial number used will be written to this location prior to submitting the message to the underlying transport. While it has a volatile qualifier, this is a historical artifact and the argument passed to it should not be volatile.

If this DBusConnection is closed then the operation will fail with IOErrorEnum.CLOSED. If message is not well-formed, the operation fails with IOErrorEnum.INVALID_ARGUMENT.

See this [server][gdbus-server] and [client][gdbus-unix-fd-client] for an example of how to use this low-level API to send and receive UNIX file descriptors.

Note that message must be unlocked, unless flags contain the DBusSendMessageFlags.PRESERVE_SERIAL flag.

Parameters:

message - a GDBusMessage

flags - flags affecting how the message is sent

outSerial - return location for serial number assigned to message when sending it or null

Returns:

true if the message was well-formed and queued for transmission, false if error is set

Throws:

GErrorException - see GError

sendMessageWithReply

public void sendMessageWithReply(DBusMessage message,
 Set<DBusSendMessageFlags> flags,
 int timeoutMsec,
 @Nullable
 @Nullable Out<Integer> outSerial,
 @Nullable
 @Nullable Cancellable cancellable,
 @Nullable
 @Nullable AsyncReadyCallback callback)

Asynchronously sends message to the peer represented by this DBusConnection.

Unless flags contain the DBusSendMessageFlags.PRESERVE_SERIAL flag, the serial number will be assigned by this DBusConnection and set on message via g_dbus_message_set_serial(). If outSerial is not null, then the serial number used will be written to this location prior to submitting the message to the underlying transport. While it has a volatile qualifier, this is a historical artifact and the argument passed to it should not be volatile.

If this DBusConnection is closed then the operation will fail with IOErrorEnum.CLOSED. If cancellable is canceled, the operation will fail with IOErrorEnum.CANCELLED. If message is not well-formed, the operation fails with IOErrorEnum.INVALID_ARGUMENT.

This is an asynchronous method. When the operation is finished, callback will be invoked in the [thread-default main context][g-main-context-push-thread-default] of the thread you are calling this method from. You can then call g_dbus_connection_send_message_with_reply_finish() to get the result of the operation. See g_dbus_connection_send_message_with_reply_sync() for the synchronous version.

Note that message must be unlocked, unless flags contain the DBusSendMessageFlags.PRESERVE_SERIAL flag.

See this [server][gdbus-server] and [client][gdbus-unix-fd-client] for an example of how to use this low-level API to send and receive UNIX file descriptors.

Parameters:

message - a GDBusMessage

flags - flags affecting how the message is sent

timeoutMsec - the timeout in milliseconds, -1 to use the default timeout or G_MAXINT for no timeout

outSerial - return location for serial number assigned to message when sending it or null

cancellable - a GCancellable or null

callback - a GAsyncReadyCallback to call when the request is satisfied or null if you don't care about the result

sendMessageWithReply

public void sendMessageWithReply(DBusMessage message,
 DBusSendMessageFlags flags,
 int timeoutMsec,
 @Nullable
 @Nullable Out<Integer> outSerial,
 @Nullable
 @Nullable Cancellable cancellable,
 @Nullable
 @Nullable AsyncReadyCallback callback)

Asynchronously sends message to the peer represented by this DBusConnection.

Unless flags contain the DBusSendMessageFlags.PRESERVE_SERIAL flag, the serial number will be assigned by this DBusConnection and set on message via g_dbus_message_set_serial(). If outSerial is not null, then the serial number used will be written to this location prior to submitting the message to the underlying transport. While it has a volatile qualifier, this is a historical artifact and the argument passed to it should not be volatile.

If this DBusConnection is closed then the operation will fail with IOErrorEnum.CLOSED. If cancellable is canceled, the operation will fail with IOErrorEnum.CANCELLED. If message is not well-formed, the operation fails with IOErrorEnum.INVALID_ARGUMENT.

This is an asynchronous method. When the operation is finished, callback will be invoked in the [thread-default main context][g-main-context-push-thread-default] of the thread you are calling this method from. You can then call g_dbus_connection_send_message_with_reply_finish() to get the result of the operation. See g_dbus_connection_send_message_with_reply_sync() for the synchronous version.

Note that message must be unlocked, unless flags contain the DBusSendMessageFlags.PRESERVE_SERIAL flag.

See this [server][gdbus-server] and [client][gdbus-unix-fd-client] for an example of how to use this low-level API to send and receive UNIX file descriptors.

Parameters:

message - a GDBusMessage

flags - flags affecting how the message is sent

timeoutMsec - the timeout in milliseconds, -1 to use the default timeout or G_MAXINT for no timeout

outSerial - return location for serial number assigned to message when sending it or null

cancellable - a GCancellable or null

callback - a GAsyncReadyCallback to call when the request is satisfied or null if you don't care about the result

sendMessageWithReplyFinish

public DBusMessage sendMessageWithReplyFinish(AsyncResult res)
                                       throws GErrorException

Finishes an operation started with g_dbus_connection_send_message_with_reply().

Note that error is only set if a local in-process error occurred. That is to say that the returned GDBusMessage object may be of type DBusMessageType.ERROR. Use g_dbus_message_to_gerror() to transcode this to a GError.

See this [server][gdbus-server] and [client][gdbus-unix-fd-client] for an example of how to use this low-level API to send and receive UNIX file descriptors.

Parameters:

res - a GAsyncResult obtained from the GAsyncReadyCallback passed to g_dbus_connection_send_message_with_reply()

Returns:

a locked GDBusMessage or null if error is set

Throws:

GErrorException - see GError

sendMessageWithReplySync

public DBusMessage sendMessageWithReplySync(DBusMessage message,
 Set<DBusSendMessageFlags> flags,
 int timeoutMsec,
 @Nullable
 @Nullable Out<Integer> outSerial,
 @Nullable
 @Nullable Cancellable cancellable)
                                     throws GErrorException

Synchronously sends message to the peer represented by this DBusConnection and blocks the calling thread until a reply is received or the timeout is reached. See g_dbus_connection_send_message_with_reply() for the asynchronous version of this method.

Unless flags contain the DBusSendMessageFlags.PRESERVE_SERIAL flag, the serial number will be assigned by this DBusConnection and set on message via g_dbus_message_set_serial(). If outSerial is not null, then the serial number used will be written to this location prior to submitting the message to the underlying transport. While it has a volatile qualifier, this is a historical artifact and the argument passed to it should not be volatile.

If this DBusConnection is closed then the operation will fail with IOErrorEnum.CLOSED. If cancellable is canceled, the operation will fail with IOErrorEnum.CANCELLED. If message is not well-formed, the operation fails with IOErrorEnum.INVALID_ARGUMENT.

Note that error is only set if a local in-process error occurred. That is to say that the returned GDBusMessage object may be of type DBusMessageType.ERROR. Use g_dbus_message_to_gerror() to transcode this to a GError.

See this [server][gdbus-server] and [client][gdbus-unix-fd-client] for an example of how to use this low-level API to send and receive UNIX file descriptors.

Note that message must be unlocked, unless flags contain the DBusSendMessageFlags.PRESERVE_SERIAL flag.

Parameters:

message - a GDBusMessage

flags - flags affecting how the message is sent.

timeoutMsec - the timeout in milliseconds, -1 to use the default timeout or G_MAXINT for no timeout

outSerial - return location for serial number assigned to message when sending it or null

cancellable - a GCancellable or null

Returns:

a locked GDBusMessage that is the reply to message or null if error is set

Throws:

GErrorException - see GError

sendMessageWithReplySync

public DBusMessage sendMessageWithReplySync(DBusMessage message,
 DBusSendMessageFlags flags,
 int timeoutMsec,
 @Nullable
 @Nullable Out<Integer> outSerial,
 @Nullable
 @Nullable Cancellable cancellable)
                                     throws GErrorException

Synchronously sends message to the peer represented by this DBusConnection and blocks the calling thread until a reply is received or the timeout is reached. See g_dbus_connection_send_message_with_reply() for the asynchronous version of this method.

Unless flags contain the DBusSendMessageFlags.PRESERVE_SERIAL flag, the serial number will be assigned by this DBusConnection and set on message via g_dbus_message_set_serial(). If outSerial is not null, then the serial number used will be written to this location prior to submitting the message to the underlying transport. While it has a volatile qualifier, this is a historical artifact and the argument passed to it should not be volatile.

If this DBusConnection is closed then the operation will fail with IOErrorEnum.CLOSED. If cancellable is canceled, the operation will fail with IOErrorEnum.CANCELLED. If message is not well-formed, the operation fails with IOErrorEnum.INVALID_ARGUMENT.

Note that error is only set if a local in-process error occurred. That is to say that the returned GDBusMessage object may be of type DBusMessageType.ERROR. Use g_dbus_message_to_gerror() to transcode this to a GError.

See this [server][gdbus-server] and [client][gdbus-unix-fd-client] for an example of how to use this low-level API to send and receive UNIX file descriptors.

Note that message must be unlocked, unless flags contain the DBusSendMessageFlags.PRESERVE_SERIAL flag.

Parameters:

message - a GDBusMessage

flags - flags affecting how the message is sent.

timeoutMsec - the timeout in milliseconds, -1 to use the default timeout or G_MAXINT for no timeout

outSerial - return location for serial number assigned to message when sending it or null

cancellable - a GCancellable or null

Returns:

a locked GDBusMessage that is the reply to message or null if error is set

Throws:

GErrorException - see GError

setExitOnClose

public void setExitOnClose(boolean exitOnClose)

Sets whether the process should be terminated when this DBusConnection is closed by the remote peer. See GDBusConnection:exit-on-close for more details.

Note that this function should be used with care. Most modern UNIX desktops tie the notion of a user session with the session bus, and expect all of a user's applications to quit when their bus connection goes away. If you are setting exitOnClose to false for the shared session bus connection, you should make sure that your application exits when the user session ends.

Parameters:

exitOnClose - whether the process should be terminated when this DBusConnection is closed by the remote peer

signalSubscribe

public int signalSubscribe(@Nullable
 @Nullable String sender,
 @Nullable
 @Nullable String interfaceName,
 @Nullable
 @Nullable String member,
 @Nullable
 @Nullable String objectPath,
 @Nullable
 @Nullable String arg0,
 Set<DBusSignalFlags> flags,
 DBusSignalCallback callback)

Subscribes to signals on this DBusConnection and invokes callback whenever the signal is received. Note that callback will be invoked in the [thread-default main context][g-main-context-push-thread-default] of the thread you are calling this method from.

If this DBusConnection is not a message bus connection, sender must be null.

If sender is a well-known name note that callback is invoked with the unique name for the owner of sender, not the well-known name as one would expect. This is because the message bus rewrites the name. As such, to avoid certain race conditions, users should be tracking the name owner of the well-known name and use that when processing the received signal.

If one of DBusSignalFlags.MATCH_ARG0_NAMESPACE or DBusSignalFlags.MATCH_ARG0_PATH are given, arg0 is interpreted as part of a namespace or path. The first argument of a signal is matched against that part as specified by D-Bus.

If userDataFreeFunc is non-null, it will be called (in the thread-default main context of the thread you are calling this method from) at some point after userData is no longer needed. (It is not guaranteed to be called synchronously when the signal is unsubscribed from, and may be called after this DBusConnection has been destroyed.)

As callback is potentially invoked in a different thread from where it’s emitted, it’s possible for this to happen after g_dbus_connection_signal_unsubscribe() has been called in another thread. Due to this, userData should have a strong reference which is freed with userDataFreeFunc, rather than pointing to data whose lifecycle is tied to the signal subscription. For example, if a GObject is used to store the subscription ID from g_dbus_connection_signal_subscribe(), a strong reference to that GObject must be passed to userData, and g_object_unref() passed to userDataFreeFunc. You are responsible for breaking the resulting reference count cycle by explicitly unsubscribing from the signal when dropping the last external reference to the GObject. Alternatively, a weak reference may be used.

It is guaranteed that if you unsubscribe from a signal using g_dbus_connection_signal_unsubscribe() from the same thread which made the corresponding g_dbus_connection_signal_subscribe() call, callback will not be invoked after g_dbus_connection_signal_unsubscribe() returns.

The returned subscription identifier is an opaque value which is guaranteed to never be zero.

This function can never fail.

Parameters:

sender - sender name to match on (unique or well-known name) or null to listen from all senders

interfaceName - D-Bus interface name to match on or null to match on all interfaces

member - D-Bus signal name to match on or null to match on all signals

objectPath - object path to match on or null to match on all object paths

arg0 - contents of first string argument to match on or null to match on all kinds of arguments

flags - GDBusSignalFlags describing how arg0 is used in subscribing to the signal

callback - callback to invoke when there is a signal matching the requested data

Returns:

a subscription identifier that can be used with g_dbus_connection_signal_unsubscribe()

signalSubscribe

public int signalSubscribe(@Nullable
 @Nullable String sender,
 @Nullable
 @Nullable String interfaceName,
 @Nullable
 @Nullable String member,
 @Nullable
 @Nullable String objectPath,
 @Nullable
 @Nullable String arg0,
 DBusSignalFlags flags,
 DBusSignalCallback callback)

Subscribes to signals on this DBusConnection and invokes callback whenever the signal is received. Note that callback will be invoked in the [thread-default main context][g-main-context-push-thread-default] of the thread you are calling this method from.

If this DBusConnection is not a message bus connection, sender must be null.

If sender is a well-known name note that callback is invoked with the unique name for the owner of sender, not the well-known name as one would expect. This is because the message bus rewrites the name. As such, to avoid certain race conditions, users should be tracking the name owner of the well-known name and use that when processing the received signal.

If one of DBusSignalFlags.MATCH_ARG0_NAMESPACE or DBusSignalFlags.MATCH_ARG0_PATH are given, arg0 is interpreted as part of a namespace or path. The first argument of a signal is matched against that part as specified by D-Bus.

If userDataFreeFunc is non-null, it will be called (in the thread-default main context of the thread you are calling this method from) at some point after userData is no longer needed. (It is not guaranteed to be called synchronously when the signal is unsubscribed from, and may be called after this DBusConnection has been destroyed.)

As callback is potentially invoked in a different thread from where it’s emitted, it’s possible for this to happen after g_dbus_connection_signal_unsubscribe() has been called in another thread. Due to this, userData should have a strong reference which is freed with userDataFreeFunc, rather than pointing to data whose lifecycle is tied to the signal subscription. For example, if a GObject is used to store the subscription ID from g_dbus_connection_signal_subscribe(), a strong reference to that GObject must be passed to userData, and g_object_unref() passed to userDataFreeFunc. You are responsible for breaking the resulting reference count cycle by explicitly unsubscribing from the signal when dropping the last external reference to the GObject. Alternatively, a weak reference may be used.

It is guaranteed that if you unsubscribe from a signal using g_dbus_connection_signal_unsubscribe() from the same thread which made the corresponding g_dbus_connection_signal_subscribe() call, callback will not be invoked after g_dbus_connection_signal_unsubscribe() returns.

The returned subscription identifier is an opaque value which is guaranteed to never be zero.

This function can never fail.

Parameters:

sender - sender name to match on (unique or well-known name) or null to listen from all senders

interfaceName - D-Bus interface name to match on or null to match on all interfaces

member - D-Bus signal name to match on or null to match on all signals

objectPath - object path to match on or null to match on all object paths

arg0 - contents of first string argument to match on or null to match on all kinds of arguments

flags - GDBusSignalFlags describing how arg0 is used in subscribing to the signal

callback - callback to invoke when there is a signal matching the requested data

Returns:

a subscription identifier that can be used with g_dbus_connection_signal_unsubscribe()

signalUnsubscribe

public void signalUnsubscribe(int subscriptionId)

Unsubscribes from signals.

Note that there may still be D-Bus traffic to process (relating to this signal subscription) in the current thread-default GMainContext after this function has returned. You should continue to iterate the GMainContext until the GDestroyNotify function passed to g_dbus_connection_signal_subscribe() is called, in order to avoid memory leaks through callbacks queued on the GMainContext after it’s stopped being iterated. Alternatively, any idle source with a priority lower than G_PRIORITY_DEFAULT that was scheduled after unsubscription, also indicates that all resources of this subscription are released.

Parameters:

subscriptionId - a subscription id obtained from g_dbus_connection_signal_subscribe()

startMessageProcessing

public void startMessageProcessing()

If this DBusConnection was created with DBusConnectionFlags.DELAY_MESSAGE_PROCESSING, this method starts processing messages. Does nothing on if this DBusConnection wasn't created with this flag or if the method has already been called.

unexportActionGroup

public void unexportActionGroup(int exportId)

Reverses the effect of a previous call to exportActionGroup(java.lang.String, org.gnome.gio.ActionGroup).

It is an error to call this function with an ID that wasn’t returned from exportActionGroup(java.lang.String, org.gnome.gio.ActionGroup) or to call it with the same ID more than once.

Parameters:

exportId - the ID from exportActionGroup(java.lang.String, org.gnome.gio.ActionGroup)

unexportMenuModel

public void unexportMenuModel(int exportId)

Reverses the effect of a previous call to g_dbus_connection_export_menu_model().

It is an error to call this function with an ID that wasn't returned from g_dbus_connection_export_menu_model() or to call it with the same ID more than once.

Parameters:

exportId - the ID from g_dbus_connection_export_menu_model()

unregisterObject

public boolean unregisterObject(int registrationId)

Unregisters an object.

Parameters:

registrationId - a registration id obtained from g_dbus_connection_register_object()

Returns:

true if the object was unregistered, false otherwise

unregisterSubtree

public boolean unregisterSubtree(int registrationId)

Unregisters a subtree.

Parameters:

registrationId - a subtree registration id obtained from g_dbus_connection_register_subtree()

Returns:

true if the subtree was unregistered, false otherwise

onClosed

public SignalConnection<DBusConnection.ClosedCallback> onClosed(DBusConnection.ClosedCallback handler)

Emitted when the connection is closed.

The cause of this event can be

• If g_dbus_connection_close() is called. In this case remotePeerVanished is set to false and error is null.

• If the remote peer closes the connection. In this case remotePeerVanished is set to true and error is set.

• If the remote peer sends invalid or malformed data. In this case remotePeerVanished is set to false and error is set.

Upon receiving this signal, you should give up your reference to connection. You are guaranteed that this signal is emitted only once.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• DBusConnection.ClosedCallback.run(boolean, org.gnome.glib.GError)

emitClosed

public void emitClosed(boolean remotePeerVanished,
 @Nullable
 @Nullable GError error)

Emits the "closed" signal. See onClosed(org.gnome.gio.DBusConnection.ClosedCallback).

builder

public static DBusConnection.Builder<? extends DBusConnection.Builder> builder()

A DBusConnection.Builder object constructs a DBusConnection with the specified properties. Use the various set...() methods to set properties, and finish construction with DBusConnection.Builder.build().