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1   /*
2   * Copyright 2014 The Netty Project
3   *
4   * The Netty Project licenses this file to you under the Apache License,
5   * version 2.0 (the "License"); you may not use this file except in compliance
6   * with the License. You may obtain a copy of the License at:
7   *
8   *   http://www.apache.org/licenses/LICENSE-2.0
9   *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13  * License for the specific language governing permissions and limitations
14  * under the License.
15  */
16  package io.netty.util.concurrent;
17  
18  import io.netty.util.internal.InternalThreadLocalMap;
19  
20  /**
21   * Netty's {@link Thread} implementations implement this interface to provide fast access to {@link FastThreadLocal}
22   * variables.
23   *
24   * @see FastThreadLocalThread
25   */
26  public interface FastThreadLocalAccess {
27  
28      /**
29       * Returns the internal data structure that keeps the thread-local variables bound to this thread.
30       * Note that this method is for internal use only, and thus is subject to change at any time.
31       */
32      InternalThreadLocalMap threadLocalMap();
33  
34      /**
35       * Sets the internal data structure that keeps the thread-local variables bound to this thread.
36       * Note that this method is for internal use only, and thus is subject to change at any time.
37       */
38      void setThreadLocalMap(InternalThreadLocalMap threadLocalMap);
39  }