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An open, royalty-free standard for cross-platform, parallel programming of diverse processors found in personal computers, servers, mobile devices and embedded platforms.

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/*
 * Copyright LWJGL. All rights reserved.
 * License terms: https://www.lwjgl.org/license
 * MACHINE GENERATED FILE, DO NOT EDIT
 */
package org.lwjgl.opencl;

import javax.annotation.*;

import org.lwjgl.system.*;

import static org.lwjgl.system.MemoryUtil.*;

/**
 * Instances of this class may be passed to the {@link CL20#clEnqueueSVMFree EnqueueSVMFree} method.
 * 
 * Type
 * 
 *  * void (*) (
 *     cl_command_queue queue,
 *     cl_uint num_svm_pointers,
 *     void **svm_pointers,
 *     void *user_data
 * )
 */
public abstract class CLSVMFreeCallback extends Callback implements CLSVMFreeCallbackI {

    /**
     * Creates a {@code CLSVMFreeCallback} instance from the specified function pointer.
     *
     * @return the new {@code CLSVMFreeCallback}
     */
    public static CLSVMFreeCallback create(long functionPointer) {
        CLSVMFreeCallbackI instance = Callback.get(functionPointer);
        return instance instanceof CLSVMFreeCallback
            ? (CLSVMFreeCallback)instance
            : new Container(functionPointer, instance);
    }

    /** Like {@link #create(long) create}, but returns {@code null} if {@code functionPointer} is {@code NULL}. */
    @Nullable
    public static CLSVMFreeCallback createSafe(long functionPointer) {
        return functionPointer == NULL ? null : create(functionPointer);
    }

    /** Creates a {@code CLSVMFreeCallback} instance that delegates to the specified {@code CLSVMFreeCallbackI} instance. */
    public static CLSVMFreeCallback create(CLSVMFreeCallbackI instance) {
        return instance instanceof CLSVMFreeCallback
            ? (CLSVMFreeCallback)instance
            : new Container(instance.address(), instance);
    }

    protected CLSVMFreeCallback() {
        super(SIGNATURE);
    }

    private CLSVMFreeCallback(long functionPointer) {
        super(functionPointer);
    }

    private static final class Container extends CLSVMFreeCallback {

        private final CLSVMFreeCallbackI delegate;

        Container(long functionPointer, CLSVMFreeCallbackI delegate) {
            super(functionPointer);
            this.delegate = delegate;
        }

        @Override
        public void invoke(long queue, int num_svm_pointers, long svm_pointers, long user_data) {
            delegate.invoke(queue, num_svm_pointers, svm_pointers, user_data);
        }

    }

}