308 lines
8.8 KiB
Java
308 lines
8.8 KiB
Java
/*
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* Copyright 2012 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.net5.buffer;
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import io.net5.util.internal.ObjectPool;
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import io.net5.util.internal.ObjectPool.Handle;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.nio.ByteBuffer;
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final class PooledDirectByteBuf extends PooledByteBuf<ByteBuffer> {
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private static final ObjectPool<PooledDirectByteBuf> RECYCLER = ObjectPool.newPool(
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handle -> new PooledDirectByteBuf(handle, 0));
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static PooledDirectByteBuf newInstance(int maxCapacity) {
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PooledDirectByteBuf buf = RECYCLER.get();
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buf.reuse(maxCapacity);
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return buf;
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}
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private PooledDirectByteBuf(Handle<PooledDirectByteBuf> recyclerHandle, int maxCapacity) {
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super(recyclerHandle, maxCapacity);
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}
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@Override
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protected ByteBuffer newInternalNioBuffer(ByteBuffer memory) {
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return memory.duplicate();
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}
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@Override
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public boolean isDirect() {
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return true;
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}
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@Override
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protected byte _getByte(int index) {
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return memory.get(idx(index));
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}
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@Override
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protected short _getShort(int index) {
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return memory.getShort(idx(index));
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}
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@Override
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protected short _getShortLE(int index) {
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return ByteBufUtil.swapShort(_getShort(index));
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}
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@Override
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protected int _getUnsignedMedium(int index) {
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index = idx(index);
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return (memory.get(index) & 0xff) << 16 |
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(memory.get(index + 1) & 0xff) << 8 |
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memory.get(index + 2) & 0xff;
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}
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@Override
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protected int _getUnsignedMediumLE(int index) {
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index = idx(index);
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return memory.get(index) & 0xff |
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(memory.get(index + 1) & 0xff) << 8 |
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(memory.get(index + 2) & 0xff) << 16;
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}
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@Override
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protected int _getInt(int index) {
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return memory.getInt(idx(index));
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}
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@Override
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protected int _getIntLE(int index) {
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return ByteBufUtil.swapInt(_getInt(index));
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}
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@Override
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protected long _getLong(int index) {
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return memory.getLong(idx(index));
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}
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@Override
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protected long _getLongLE(int index) {
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return ByteBufUtil.swapLong(_getLong(index));
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}
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@Override
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public ByteBuf getBytes(int index, ByteBuf dst, int dstIndex, int length) {
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checkDstIndex(index, length, dstIndex, dst.capacity());
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if (dst.hasArray()) {
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getBytes(index, dst.array(), dst.arrayOffset() + dstIndex, length);
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} else if (dst.nioBufferCount() > 0) {
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for (ByteBuffer bb: dst.nioBuffers(dstIndex, length)) {
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int bbLen = bb.remaining();
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getBytes(index, bb);
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index += bbLen;
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}
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} else {
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dst.setBytes(dstIndex, this, index, length);
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}
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return this;
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}
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@Override
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public ByteBuf getBytes(int index, byte[] dst, int dstIndex, int length) {
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checkDstIndex(index, length, dstIndex, dst.length);
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_internalNioBuffer(index, length, true).get(dst, dstIndex, length);
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return this;
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}
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@Override
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public ByteBuf readBytes(byte[] dst, int dstIndex, int length) {
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checkDstIndex(length, dstIndex, dst.length);
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_internalNioBuffer(readerIndex, length, false).get(dst, dstIndex, length);
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readerIndex += length;
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return this;
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}
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@Override
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public ByteBuf getBytes(int index, ByteBuffer dst) {
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dst.put(duplicateInternalNioBuffer(index, dst.remaining()));
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return this;
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}
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@Override
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public ByteBuf readBytes(ByteBuffer dst) {
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int length = dst.remaining();
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checkReadableBytes(length);
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dst.put(_internalNioBuffer(readerIndex, length, false));
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readerIndex += length;
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return this;
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}
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@Override
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public ByteBuf getBytes(int index, OutputStream out, int length) throws IOException {
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getBytes(index, out, length, false);
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return this;
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}
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private void getBytes(int index, OutputStream out, int length, boolean internal) throws IOException {
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checkIndex(index, length);
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if (length == 0) {
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return;
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}
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ByteBufUtil.readBytes(alloc(), internal ? internalNioBuffer() : memory.duplicate(), idx(index), length, out);
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}
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@Override
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public ByteBuf readBytes(OutputStream out, int length) throws IOException {
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checkReadableBytes(length);
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getBytes(readerIndex, out, length, true);
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readerIndex += length;
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return this;
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}
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@Override
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protected void _setByte(int index, int value) {
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memory.put(idx(index), (byte) value);
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}
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@Override
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protected void _setShort(int index, int value) {
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memory.putShort(idx(index), (short) value);
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}
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@Override
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protected void _setShortLE(int index, int value) {
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_setShort(index, ByteBufUtil.swapShort((short) value));
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}
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@Override
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protected void _setMedium(int index, int value) {
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index = idx(index);
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memory.put(index, (byte) (value >>> 16));
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memory.put(index + 1, (byte) (value >>> 8));
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memory.put(index + 2, (byte) value);
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}
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@Override
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protected void _setMediumLE(int index, int value) {
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index = idx(index);
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memory.put(index, (byte) value);
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memory.put(index + 1, (byte) (value >>> 8));
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memory.put(index + 2, (byte) (value >>> 16));
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}
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@Override
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protected void _setInt(int index, int value) {
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memory.putInt(idx(index), value);
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}
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@Override
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protected void _setIntLE(int index, int value) {
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_setInt(index, ByteBufUtil.swapInt(value));
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}
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@Override
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protected void _setLong(int index, long value) {
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memory.putLong(idx(index), value);
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}
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@Override
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protected void _setLongLE(int index, long value) {
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_setLong(index, ByteBufUtil.swapLong(value));
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}
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@Override
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public ByteBuf setBytes(int index, ByteBuf src, int srcIndex, int length) {
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checkSrcIndex(index, length, srcIndex, src.capacity());
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if (src.hasArray()) {
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setBytes(index, src.array(), src.arrayOffset() + srcIndex, length);
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} else if (src.nioBufferCount() > 0) {
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for (ByteBuffer bb: src.nioBuffers(srcIndex, length)) {
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int bbLen = bb.remaining();
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setBytes(index, bb);
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index += bbLen;
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}
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} else {
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src.getBytes(srcIndex, this, index, length);
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}
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return this;
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}
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@Override
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public ByteBuf setBytes(int index, byte[] src, int srcIndex, int length) {
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checkSrcIndex(index, length, srcIndex, src.length);
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_internalNioBuffer(index, length, false).put(src, srcIndex, length);
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return this;
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}
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@Override
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public ByteBuf setBytes(int index, ByteBuffer src) {
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int length = src.remaining();
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checkIndex(index, length);
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ByteBuffer tmpBuf = internalNioBuffer();
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if (src == tmpBuf) {
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src = src.duplicate();
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}
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index = idx(index);
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tmpBuf.limit(index + length).position(index);
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tmpBuf.put(src);
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return this;
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}
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@Override
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public int setBytes(int index, InputStream in, int length) throws IOException {
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checkIndex(index, length);
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byte[] tmp = ByteBufUtil.threadLocalTempArray(length);
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int readBytes = in.read(tmp, 0, length);
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if (readBytes <= 0) {
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return readBytes;
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}
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ByteBuffer tmpBuf = internalNioBuffer();
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tmpBuf.position(idx(index));
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tmpBuf.put(tmp, 0, readBytes);
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return readBytes;
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}
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@Override
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public ByteBuf copy(int index, int length) {
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checkIndex(index, length);
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ByteBuf copy = alloc().directBuffer(length, maxCapacity());
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return copy.writeBytes(this, index, length);
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}
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@Override
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public boolean hasArray() {
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return false;
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}
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@Override
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public byte[] array() {
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throw new UnsupportedOperationException("direct buffer");
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}
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@Override
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public int arrayOffset() {
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throw new UnsupportedOperationException("direct buffer");
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}
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@Override
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public boolean hasMemoryAddress() {
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return false;
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}
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@Override
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public long memoryAddress() {
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throw new UnsupportedOperationException();
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}
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}
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