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VoltDB client interface libraries
/*
* Copyright 2015 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:
*
* 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 io.netty_voltpatches.buffer;
import io.netty_voltpatches.util.Recycler;
import io.netty_voltpatches.util.Recycler.Handle;
import io.netty_voltpatches.util.internal.PlatformDependent;
final class PooledUnsafeHeapByteBuf extends PooledHeapByteBuf {
private static final Recycler RECYCLER = new Recycler() {
@Override
protected PooledUnsafeHeapByteBuf newObject(Handle handle) {
return new PooledUnsafeHeapByteBuf(handle, 0);
}
};
static PooledUnsafeHeapByteBuf newUnsafeInstance(int maxCapacity) {
PooledUnsafeHeapByteBuf buf = RECYCLER.get();
buf.reuse(maxCapacity);
return buf;
}
private PooledUnsafeHeapByteBuf(Handle recyclerHandle, int maxCapacity) {
super(recyclerHandle, maxCapacity);
}
@Override
protected byte _getByte(int index) {
return UnsafeByteBufUtil.getByte(memory, idx(index));
}
@Override
protected short _getShort(int index) {
return UnsafeByteBufUtil.getShort(memory, idx(index));
}
@Override
protected int _getUnsignedMedium(int index) {
return UnsafeByteBufUtil.getUnsignedMedium(memory, idx(index));
}
@Override
protected int _getInt(int index) {
return UnsafeByteBufUtil.getInt(memory, idx(index));
}
@Override
protected long _getLong(int index) {
return UnsafeByteBufUtil.getLong(memory, idx(index));
}
@Override
protected void _setByte(int index, int value) {
UnsafeByteBufUtil.setByte(memory, idx(index), value);
}
@Override
protected void _setShort(int index, int value) {
UnsafeByteBufUtil.setShort(memory, idx(index), value);
}
@Override
protected void _setMedium(int index, int value) {
UnsafeByteBufUtil.setMedium(memory, idx(index), value);
}
@Override
protected void _setInt(int index, int value) {
UnsafeByteBufUtil.setInt(memory, idx(index), value);
}
@Override
protected void _setLong(int index, long value) {
UnsafeByteBufUtil.setLong(memory, idx(index), value);
}
@Override
protected Recycler recycler() {
return RECYCLER;
}
@Override
public ByteBuf setZero(int index, int length) {
if (PlatformDependent.javaVersion() >= 7) {
// Only do on java7+ as the needed Unsafe call was only added there.
_setZero(index, length);
return this;
}
return super.setZero(index, length);
}
@Override
public ByteBuf writeZero(int length) {
if (PlatformDependent.javaVersion() >= 7) {
// Only do on java7+ as the needed Unsafe call was only added there.
ensureWritable(length);
int wIndex = writerIndex;
_setZero(wIndex, length);
writerIndex = wIndex + length;
return this;
}
return super.writeZero(length);
}
private void _setZero(int index, int length) {
checkIndex(index, length);
UnsafeByteBufUtil.setZero(memory, idx(index), length);
}
@Override
@Deprecated
protected SwappedByteBuf newSwappedByteBuf() {
if (PlatformDependent.isUnaligned()) {
// Only use if unaligned access is supported otherwise there is no gain.
return new UnsafeHeapSwappedByteBuf(this);
}
return super.newSwappedByteBuf();
}
}