io.netty.util.internal.UnpaddedInternalThreadLocalMap Maven / Gradle / Ivy
/*
* Copyright 2014 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.util.internal;
import io.netty.util.concurrent.FastThreadLocal;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.nio.charset.CharsetEncoder;
import java.util.ArrayList;
import java.util.Map;
import java.util.concurrent.atomic.AtomicInteger;
/**
* The internal data structure that stores the thread-local variables for Netty and all {@link FastThreadLocal}s.
* Note that this class is for internal use only and is subject to change at any time. Use {@link FastThreadLocal}
* unless you know what you are doing.
*/
class UnpaddedInternalThreadLocalMap {
static final ThreadLocal slowThreadLocalMap = new ThreadLocal();
static final AtomicInteger nextIndex = new AtomicInteger();
/** Used by {@link FastThreadLocal} */
Object[] indexedVariables;
// Core thread-locals
int futureListenerStackDepth;
int localChannelReaderStackDepth;
Map, Boolean> handlerSharableCache;
IntegerHolder counterHashCode;
ThreadLocalRandom random;
Map, TypeParameterMatcher> typeParameterMatcherGetCache;
Map, Map> typeParameterMatcherFindCache;
// String-related thread-locals
StringBuilder stringBuilder;
Map charsetEncoderCache;
Map charsetDecoderCache;
// ArrayList-related thread-locals
ArrayList