Interface Message.NetworkEventCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

Message

Functional Interface:

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

@FunctionalInterface
public static interface Message.NetworkEventCallback
extends FunctionPointer

Functional interface declaration of the NetworkEventCallback callback.

See Also:

• run(SocketClientEvent, IOStream)

Method Summary

Modifier and Type	Method	Description
void	run(SocketClientEvent event, @Nullable IOStream connection)	Emitted to indicate that some network-related event related to msg has occurred.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, int, MemorySegment) method.
default void	upcall(MemorySegment sourceMessage, int event, MemorySegment connection)	The upcall method is called from native code.

Method Details

run

void run(SocketClientEvent event,
 @Nullable IOStream connection)

Emitted to indicate that some network-related event related to msg has occurred.

This essentially proxies the Gio.SocketClient::event signal, but only for events that occur while msg "owns" the connection; if msg is sent on an existing persistent connection, then this signal will not be emitted. (If you want to force the message to be sent on a new connection, set the MessageFlags.NEW_CONNECTION flag on it.)

See Gio.SocketClient::event for more information on what the different values of event correspond to, and what connection will be in each case.

upcall

default void upcall(MemorySegment sourceMessage,
 int event,
 MemorySegment connection)

The upcall method is called from native code. The parameters are marshaled and run(SocketClientEvent, IOStream) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

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

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the arena in which the function pointer is allocated

Returns:

the native function pointer