68 lines
2.2 KiB
Java
68 lines
2.2 KiB
Java
/*
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* Copyright 2014 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.PlatformDependent;
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/**
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* Special {@link SwappedByteBuf} for {@link ByteBuf}s that are backed by a {@code memoryAddress}.
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*/
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final class UnsafeDirectSwappedByteBuf extends AbstractUnsafeSwappedByteBuf {
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UnsafeDirectSwappedByteBuf(AbstractByteBuf buf) {
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super(buf);
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}
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private static long addr(AbstractByteBuf wrapped, int index) {
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// We need to call wrapped.memoryAddress() everytime and NOT cache it as it may change if the buffer expand.
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// See:
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// - https://github.com/netty/netty/issues/2587
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// - https://github.com/netty/netty/issues/2580
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return wrapped.memoryAddress() + index;
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}
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@Override
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protected long _getLong(AbstractByteBuf wrapped, int index) {
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return PlatformDependent.getLong(addr(wrapped, index));
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}
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@Override
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protected int _getInt(AbstractByteBuf wrapped, int index) {
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return PlatformDependent.getInt(addr(wrapped, index));
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}
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@Override
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protected short _getShort(AbstractByteBuf wrapped, int index) {
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return PlatformDependent.getShort(addr(wrapped, index));
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}
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@Override
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protected void _setShort(AbstractByteBuf wrapped, int index, short value) {
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PlatformDependent.putShort(addr(wrapped, index), value);
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}
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@Override
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protected void _setInt(AbstractByteBuf wrapped, int index, int value) {
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PlatformDependent.putInt(addr(wrapped, index), value);
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}
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@Override
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protected void _setLong(AbstractByteBuf wrapped, int index, long value) {
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PlatformDependent.putLong(addr(wrapped, index), value);
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}
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}
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