d0c43c9e42
Motivation: When using the OIO transport we need to act on byte[] when writing and reading from / to the underyling Socket. So we should ensure we use heap buffers by default to reduce memory copies. Modifications: Ensure we prefer heap buffers by default for the OIO transport. Result: Possible less memory copies.
136 lines
3.8 KiB
Java
136 lines
3.8 KiB
Java
/*
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* Copyright 2016 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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* http://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.netty.channel;
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import io.netty.buffer.ByteBuf;
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import io.netty.buffer.ByteBufAllocator;
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import io.netty.buffer.CompositeByteBuf;
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import io.netty.util.internal.ObjectUtil;
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import io.netty.util.internal.UnstableApi;
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/**
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* Wraps another {@link ByteBufAllocator} and use heapbuffers everywhere except when a direct buffer is explicit
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* requested.
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*/
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@UnstableApi
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public final class PreferHeapByteBufAllocator implements ByteBufAllocator {
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private final ByteBufAllocator allocator;
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public PreferHeapByteBufAllocator(ByteBufAllocator allocator) {
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this.allocator = ObjectUtil.checkNotNull(allocator, "allocator");
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}
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@Override
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public ByteBuf buffer() {
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return allocator.heapBuffer();
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}
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@Override
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public ByteBuf buffer(int initialCapacity) {
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return allocator.heapBuffer(initialCapacity);
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}
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@Override
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public ByteBuf buffer(int initialCapacity, int maxCapacity) {
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return allocator.heapBuffer(initialCapacity, maxCapacity);
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}
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@Override
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public ByteBuf ioBuffer() {
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return allocator.heapBuffer();
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}
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@Override
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public ByteBuf ioBuffer(int initialCapacity) {
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return allocator.heapBuffer(initialCapacity);
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}
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@Override
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public ByteBuf ioBuffer(int initialCapacity, int maxCapacity) {
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return allocator.heapBuffer(initialCapacity, maxCapacity);
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}
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@Override
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public ByteBuf heapBuffer() {
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return allocator.heapBuffer();
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}
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@Override
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public ByteBuf heapBuffer(int initialCapacity) {
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return allocator.heapBuffer(initialCapacity);
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}
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@Override
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public ByteBuf heapBuffer(int initialCapacity, int maxCapacity) {
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return allocator.heapBuffer(initialCapacity, maxCapacity);
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}
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@Override
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public ByteBuf directBuffer() {
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return allocator.directBuffer();
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}
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@Override
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public ByteBuf directBuffer(int initialCapacity) {
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return allocator.directBuffer(initialCapacity);
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}
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@Override
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public ByteBuf directBuffer(int initialCapacity, int maxCapacity) {
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return allocator.directBuffer(initialCapacity, maxCapacity);
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}
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@Override
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public CompositeByteBuf compositeBuffer() {
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return allocator.compositeHeapBuffer();
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}
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@Override
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public CompositeByteBuf compositeBuffer(int maxNumComponents) {
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return allocator.compositeHeapBuffer(maxNumComponents);
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}
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@Override
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public CompositeByteBuf compositeHeapBuffer() {
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return allocator.compositeHeapBuffer();
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}
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@Override
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public CompositeByteBuf compositeHeapBuffer(int maxNumComponents) {
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return allocator.compositeHeapBuffer(maxNumComponents);
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}
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@Override
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public CompositeByteBuf compositeDirectBuffer() {
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return allocator.compositeDirectBuffer();
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}
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@Override
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public CompositeByteBuf compositeDirectBuffer(int maxNumComponents) {
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return allocator.compositeDirectBuffer(maxNumComponents);
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}
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@Override
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public boolean isDirectBufferPooled() {
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return allocator.isDirectBufferPooled();
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}
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@Override
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public int calculateNewCapacity(int minNewCapacity, int maxCapacity) {
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return allocator.calculateNewCapacity(minNewCapacity, maxCapacity);
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}
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}
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