Interface DBusSignalCallback

All Superinterfaces:

FunctionPointer

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
@Generated("org.javagi.JavaGI")
public interface DBusSignalCallback
extends FunctionPointer

Functional interface declaration of the DBusSignalCallback callback.

See Also:

• run(DBusConnection, String, String, String, String, Variant)

Method Summary

Modifier and Type	Method	Description
void	run(DBusConnection connection, @Nullable String senderName, String objectPath, String interfaceName, String signalName, Variant parameters)	Signature for callback function used in g_dbus_connection_signal_subscribe().
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, MemorySegment, MemorySegment, MemorySegment, MemorySegment, MemorySegment, MemorySegment) method.
default void	upcall(MemorySegment connection, MemorySegment senderName, MemorySegment objectPath, MemorySegment interfaceName, MemorySegment signalName, MemorySegment parameters, MemorySegment userData)	The upcall method is called from native code.

Method Details

run

void run(DBusConnection connection,
 @Nullable String senderName,
 String objectPath,
 String interfaceName,
 String signalName,
 Variant parameters)

Signature for callback function used in g_dbus_connection_signal_subscribe().

Parameters:

connection - A GDBusConnection.

senderName - The unique bus name of the sender of the signal, or null on a peer-to-peer D-Bus connection.

objectPath - The object path that the signal was emitted on.

interfaceName - The name of the interface.

signalName - The name of the signal.

parameters - A GVariant tuple with parameters for the signal.

Since:

2.26

upcall

default void upcall(MemorySegment connection,
 MemorySegment senderName,
 MemorySegment objectPath,
 MemorySegment interfaceName,
 MemorySegment signalName,
 MemorySegment parameters,
 MemorySegment userData)

The upcall method is called from native code. The parameters are marshaled and run(DBusConnection, String, String, String, String, Variant) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

Creates a native function pointer to the upcall(MemorySegment, MemorySegment, MemorySegment, MemorySegment, MemorySegment, MemorySegment, MemorySegment) method.

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the arena in which the function pointer is allocated

Returns:

the native function pointer