com.generallycloud.baseio.buffer.PooledHeapByteBuf Maven / Gradle / Ivy

Go to download
/*
 * Copyright 2015-2017 GenerallyCloud.com
 *  
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *  
 *      http://www.apache.org/licenses/LICENSE-2.0
 *  
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.generallycloud.baseio.buffer;

public class PooledHeapByteBuf extends AbstractHeapByteBuf implements PooledByteBuf {

	protected PooledHeapByteBuf(ByteBufAllocator allocator, byte[] memory) {
		super(allocator, memory);
	}

	private int		beginUnit;

	@Override
	public int getBeginUnit() {
		return beginUnit;
	}

	@Override
	public PooledByteBuf newByteBuf(ByteBufAllocator allocator) {
		return this;
	}

	protected ByteBuf doDuplicate() {
		return new DuplicateByteBuf(new PooledHeapByteBuf(allocator, memory).produce(this), this);
	}

	@Override
	public PooledHeapByteBuf produce(int begin, int end, int newLimit) {
		this.offset = begin * allocator.getUnitMemorySize();
		this.capacity = (end - begin) * allocator.getUnitMemorySize();
		this.limit = newLimit;
		this.position = 0;
		this.beginUnit = begin;
		this.referenceCount = 1;
		this.released = false;
		return this;
	}
	
	@Override
	protected void doRelease() {
		allocator.release(this);
	}

	@Override
	public PooledByteBuf produce(PooledByteBuf buf) {
		this.offset = buf.offset();
		this.capacity = buf.capacity();
		this.limit = buf.limit();
		this.position = buf.position();
		this.beginUnit = buf.getBeginUnit();
		this.referenceCount = 1;
		this.released = false;
		return this;
	}


}