com.alibaba.rocketmq.shade.io.netty.buffer.UnpooledByteBufAllocator Maven / Gradle / Ivy
/*
* Copyright 2012 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.buffer;
import io.netty.util.internal.PlatformDependent;
/**
* Simplistic {@link ByteBufAllocator} implementation that does not pool anything.
*/
public final class UnpooledByteBufAllocator extends AbstractByteBufAllocator {
/**
* Default instance
*/
public static final UnpooledByteBufAllocator DEFAULT =
new UnpooledByteBufAllocator(PlatformDependent.directBufferPreferred());
/**
* Create a new instance
*
* @param preferDirect {@code true} if {@link #buffer(int)} should try to allocate a direct buffer rather than
* a heap buffer
*/
public UnpooledByteBufAllocator(boolean preferDirect) {
super(preferDirect);
}
@Override
protected ByteBuf newHeapBuffer(int initialCapacity, int maxCapacity) {
return PlatformDependent.hasUnsafe() ? new UnpooledUnsafeHeapByteBuf(this, initialCapacity, maxCapacity)
: new UnpooledHeapByteBuf(this, initialCapacity, maxCapacity);
}
@Override
protected ByteBuf newDirectBuffer(int initialCapacity, int maxCapacity) {
ByteBuf buf;
if (PlatformDependent.hasUnsafe()) {
buf = new UnpooledUnsafeDirectByteBuf(this, initialCapacity, maxCapacity);
} else {
buf = new UnpooledDirectByteBuf(this, initialCapacity, maxCapacity);
}
return toLeakAwareBuffer(buf);
}
@Override
public boolean isDirectBufferPooled() {
return false;
}
}