SignalDrivenThread.h revision 9dd63e1fc352306d6680c517b7ce9936683c78c4 
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 * - 2012/07/10 : Sungjoong Kang(sj3.kang@samsung.com) \n
30 *   2nd Release
31 *
32 */
33
34
35
36#ifndef SIGNAL_DRIVEN_THREAD_H
37#define SIGNAL_DRIVEN_THREAD_H
38
39#include <utils/threads.h>
40
41namespace android {
42
43#define SIGNAL_THREAD_TERMINATE     (1<<0)
44#define SIGNAL_THREAD_PAUSE         (1<<1)
45
46#define SIGNAL_THREAD_COMMON_LAST   (1<<3)
47
48class SignalDrivenThread:public Thread {
49public:
50                        SignalDrivenThread();
51                        SignalDrivenThread(const char *name,
52                            int32_t priority, size_t stack);
53    virtual             ~SignalDrivenThread();
54
55            status_t    SetSignal(uint32_t signal);
56
57            uint32_t    GetProcessingSignal();
58            //void        ClearProcessingSignal(uint32_t signal);
59            void        Start(const char *name,
60                            int32_t priority, size_t stack);
61            bool        IsTerminated();
62
63private:
64            status_t    readyToRun();
65    virtual status_t    readyToRunInternal() = 0;
66
67            bool        threadLoop();
68    virtual void        threadFunctionInternal() = 0;
69
70            void        ClearSignal();
71
72            uint32_t    m_receivedSignal;
73            uint32_t    m_processingSignal;
74
75            Mutex       m_signalMutex;
76            Condition   m_threadCondition;
77            bool	    m_isTerminated;
78};
79
80}; // namespace android
81
82#endif
83