ALooperRoster.h revision 3f27436a9346f043f52265da1e6a74cde2bffd4d 
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
25namespace android {
26
27struct 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
38private:
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