Interface AsyncReadyCallback

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 AsyncReadyCallback
extends FunctionPointer

Functional interface declaration of the AsyncReadyCallback callback.

See Also:

• run(GObject, AsyncResult, MemorySegment)

Method Summary

Modifier and Type	Method	Description
void	run(@Nullable GObject sourceObject, AsyncResult res, @Nullable MemorySegment data)	Type definition for a function that will be called back when an asynchronous operation within GIO has been completed.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, MemorySegment, MemorySegment) method.
default void	upcall(MemorySegment sourceObject, MemorySegment res, MemorySegment data)	The upcall method is called from native code.

Method Details

run

void run(@Nullable GObject sourceObject,
 AsyncResult res,
 @Nullable MemorySegment data)

Type definition for a function that will be called back when an asynchronous operation within GIO has been completed. GAsyncReadyCallback callbacks from GTask are guaranteed to be invoked in a later iteration of the thread-default main context (see MainContext#pushThreadDefault) where the GTask was created. All other users of GAsyncReadyCallback must likewise call it asynchronously in a later iteration of the main context.

The asynchronous operation is guaranteed to have held a reference to sourceObject from the time when the *_async() function was called, until after this callback returns.

Parameters:

sourceObject - the object the asynchronous operation was started with.

res - a GAsyncResult.

data - user data passed to the callback.

upcall

default void upcall(MemorySegment sourceObject,
 MemorySegment res,
 MemorySegment data)

The upcall method is called from native code. The parameters are marshaled and run(GObject, AsyncResult, MemorySegment) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

Creates a native function pointer to the upcall(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