Interface MemoryCopyFunction

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 MemoryCopyFunction
extends FunctionPointer

Functional interface declaration of the MemoryCopyFunction callback.

See Also:

• run(Memory, long, long)

Method Summary

Modifier and Type	Method	Description
Memory	run(Memory mem, long offset, long size)	Copy size bytes from mem starting at offset and return them wrapped in a new GstMemory object.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, long, long) method.
default MemorySegment	upcall(MemorySegment mem, long offset, long size)	The upcall method is called from native code.

Method Details

run

Memory run(Memory mem,
 long offset,
 long size)

Copy size bytes from mem starting at offset and return them wrapped in a new GstMemory object. If size is set to -1, all bytes starting at offset are copied.

Parameters:

mem - a GstMemory

offset - an offset

size - a size or -1

Returns:

a new GstMemory object wrapping a copy of the requested region in mem.

upcall

default MemorySegment upcall(MemorySegment mem,
 long offset,
 long size)

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

toCallback

default MemorySegment toCallback(Arena arena)

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

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the arena in which the function pointer is allocated

Returns:

the native function pointer