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1  /*
2   * Copyright (C) 2010 The Android Open Source Project
3   *
4   * Licensed under the Apache License, Version 2.0 (the "License");
5   * you may not use this file except in compliance with the License.
6   * 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,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  #ifndef A_LOOPER_ROSTER_H_
18  
19  #define A_LOOPER_ROSTER_H_
20  
21  #include <media/stagefright/foundation/ALooper.h>
22  #include <utils/KeyedVector.h>
23  #include <utils/String16.h>
24  
25  namespace android {
26  
27  struct ALooperRoster {
28      ALooperRoster();
29  
30      ALooper::handler_id registerHandler(
31              const sp<ALooper> looper, const sp<AHandler> &handler);
32  
33      void unregisterHandler(ALooper::handler_id handlerID);
34      void unregisterStaleHandlers();
35  
36      void dump(int fd, const Vector<String16>& args);
37  
38  private:
39      struct HandlerInfo {
40          wp<ALooper> mLooper;
41          wp<AHandler> mHandler;
42      };
43  
44      Mutex mLock;
45      KeyedVector<ALooper::handler_id, HandlerInfo> mHandlers;
46      ALooper::handler_id mNextHandlerID;
47  
48      DISALLOW_EVIL_CONSTRUCTORS(ALooperRoster);
49  };
50  
51  }  // namespace android
52  
53  #endif  // A_LOOPER_ROSTER_H_
54