PooledSlicedByteBuf.java — netty Source File

Source Code

/*
 * Copyright 2016 The Netty Project
 *
 * The Netty Project licenses this file to you 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:
 *
 *   https://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 io.netty.buffer;

import io.netty.util.ByteProcessor;
import io.netty.util.Recycler;
import io.netty.util.internal.ObjectPool.Handle;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.nio.channels.GatheringByteChannel;
import java.nio.channels.ScatteringByteChannel;

import static io.netty.buffer.AbstractUnpooledSlicedByteBuf.checkSliceOutOfBounds;

final class PooledSlicedByteBuf extends AbstractPooledDerivedByteBuf {

    private static final Recycler<PooledSlicedByteBuf> RECYCLER =
            new Recycler<PooledSlicedByteBuf>() {
                @Override
                protected PooledSlicedByteBuf newObject(Handle<PooledSlicedByteBuf> handle) {
                    return new PooledSlicedByteBuf(handle);
                }
            };

    static PooledSlicedByteBuf newInstance(AbstractByteBuf unwrapped, ByteBuf wrapped,
                                           int index, int length) {
        checkSliceOutOfBounds(index, length, unwrapped);
        return newInstance0(unwrapped, wrapped, index, length);
    }

    private static PooledSlicedByteBuf newInstance0(AbstractByteBuf unwrapped, ByteBuf wrapped,
                                                    int adjustment, int length) {
        final PooledSlicedByteBuf slice = RECYCLER.get();
        slice.init(unwrapped, wrapped, 0, length, length);
        slice.discardMarks();
        slice.adjustment = adjustment;

        return slice;
    }

    int adjustment;

// ... (381 more lines)