SignalDrivenThread.h revision c15a6b003394494149ef7d65ae35c38755cb8b93 
1/*
2**
3** Copyright 2008, The Android Open Source Project
4** Copyright 2012, Samsung Electronics Co. LTD
5**
6** Licensed under the Apache License, Version 2.0 (the "License");
7** you may not use this file except in compliance with the License.
8** You may obtain a copy of the License at
9**
10**     http://www.apache.org/licenses/LICENSE-2.0
11**
12** Unless required by applicable law or agreed to in writing, software
13** distributed under the License is distributed on an "AS IS" BASIS,
14** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15** See the License for the specific language governing permissions and
16** limitations under the License.
17*/
18
19/*!
20 * \file      SignalDrivenThread.h
21 * \brief     header file for general thread ( for camera hal2 implementation )
22 * \author    Sungjoong Kang(sj3.kang@samsung.com)
23 * \date      2012/05/31
24 *
25 * <b>Revision History: </b>
26 * - 2012/05/31 : Sungjoong Kang(sj3.kang@samsung.com) \n
27 *   Initial Release
28 */
29
30
31
32#ifndef SIGNAL_DRIVEN_THREAD_H
33#define SIGNAL_DRIVEN_THREAD_H
34
35#include <utils/threads.h>
36
37namespace android {
38
39#define SIGNAL_THREAD_TERMINATE     (1<<0)
40#define SIGNAL_THREAD_PAUSE         (1<<1)
41
42#define SIGNAL_THREAD_COMMON_LAST   (1<<3)
43
44class SignalDrivenThread : public Thread {
45public:
46                        SignalDrivenThread();
47                        SignalDrivenThread(const char* name,
48                            int32_t priority, size_t stack);
49    virtual             ~SignalDrivenThread();
50
51            status_t    SetSignal(uint32_t signal);
52
53
54            uint32_t    GetProcessingSignal();
55            //void        ClearProcessingSignal(uint32_t signal);
56
57
58private:
59            status_t    readyToRun();
60    virtual status_t    readyToRunInternal() = 0;
61
62            bool        threadLoop();
63    virtual void        threadLoopInternal() = 0;
64
65            void        ClearSignal();
66
67            uint32_t    m_receivedSignal;
68            uint32_t    m_processingSignal;
69
70            Mutex       m_signalMutex;
71            Condition   m_threadCondition;
72};
73
74}; // namespace android
75
76#endif
77
78