Package org.gnome.glib

Interface SourceFuncsCheckFunc

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("io.github.jwharm.JavaGI")
public interface SourceFuncsCheckFunc
extends FunctionPointer

Functional interface declaration of the SourceFuncsCheckFunc callback.

See Also:

• run(org.gnome.glib.Source)

Method Summary

Modifier and Type	Method	Description
boolean	run(Source source)	Checks if the source is ready to be dispatched.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment) method.
default int	upcall(MemorySegment source)	The upcall method is called from native code.

Method Details

run

boolean run(Source source)

Checks if the source is ready to be dispatched.

Called after all the file descriptors are polled. The source should return true if it is ready to be dispatched. Note that some time may have passed since the previous prepare function was called, so the source should be checked again here.

Since 2.36 this may be NULL, in which case the effect is as if the function always returns FALSE.

upcall

default int upcall(MemorySegment source)

The upcall method is called from native code. The parameters are marshaled and run(org.gnome.glib.Source) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment) method.

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the function pointer will be allocated in this arena

Returns:

the native function pointer