Package org.freedesktop.wayland.util

Class PointerArray

java.lang.Object

org.freedesktop.wayland.util.PointerArray

public class PointerArray
extends Object

Constructor Summary

Constructors

Constructor	Description
PointerArray()

Method Summary

Modifier and Type	Method	Description
static MemorySegment	allocate(long length, SegmentAllocator allocator)	Allocates an array of pointers of the specified length.
static MemorySegment	fromArray(MemorySegment[] sources, SegmentAllocator session)	Copies a Java array of MemorySegments into a native array of pointers.
static <T> MemorySegment	fromStream(Stream<T> stream, Function<T,MemorySegment> converter, SegmentAllocator allocator)	Creates a native array of pointers from a stream of objects and a conversion function.
static MemorySegment	getAtIndex(MemorySegment array, long index)	Gets a pointer value at the specified index in the array.
static long	length(MemorySegment array)	Gets the length of the pointer array.
static void	setAtIndex(MemorySegment array, long index, MemorySegment value)	Sets a pointer value at the specified index in the array.
static MemorySegment[]	toArray(MemorySegment array)	Copies a native array of pointers into a Java array of MemorySegments.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

PointerArray

public PointerArray()

Method Details

allocate

public static MemorySegment allocate(long length,
 SegmentAllocator allocator)

Allocates an array of pointers of the specified length.

Parameters:

length - The number of pointers in the array.

allocator - The Arena to use for allocation.

Returns:

A MemorySegment representing the allocated array of pointers.

setAtIndex

public static void setAtIndex(MemorySegment array,
 long index,
 MemorySegment value)

Sets a pointer value at the specified index in the array.

Parameters:

array - The MemorySegment representing the array of pointers.

index - The index at which to set the pointer.

value - The MemorySegment to set (representing a pointer).

getAtIndex

public static MemorySegment getAtIndex(MemorySegment array,
 long index)

Gets a pointer value at the specified index in the array.

Parameters:

array - The MemorySegment representing the array of pointers.

index - The index from which to get the pointer.

Returns:

A MemorySegment representing the pointer at the specified index.

length

public static long length(MemorySegment array)

Gets the length of the pointer array.

Parameters:

array - The MemorySegment representing the array of pointers.

Returns:

The number of pointers in the array.

fromArray

public static MemorySegment fromArray(MemorySegment[] sources,
 SegmentAllocator session)

Copies a Java array of MemorySegments into a native array of pointers.

Parameters:

sources - The Java array of MemorySegments to copy.

session - The Arena to use for allocation.

Returns:

A MemorySegment representing the native array of pointers.

toArray

public static MemorySegment[] toArray(MemorySegment array)

Copies a native array of pointers into a Java array of MemorySegments.

Parameters:

array - The MemorySegment representing the native array of pointers.

Returns:

A Java array of MemorySegments.

fromStream

public static <T> MemorySegment fromStream(Stream<T> stream,
 Function<T,MemorySegment> converter,
 SegmentAllocator allocator)

Creates a native array of pointers from a stream of objects and a conversion function.

Type Parameters:

T - The type of objects in the stream.

Parameters:

stream - The stream of objects to convert.

converter - A function that converts objects of type T to MemorySegments.

allocator - The Arena to use for allocation.

Returns:

A MemorySegment representing the native array of pointers.