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 (at) samsung.com) 23 * \date 2012/05/31 24 * 25 * <b>Revision History: </b> 26 * - 2012/05/31 : Sungjoong Kang(sj3.kang (at) samsung.com) \n 27 * Initial Release 28 * 29 * - 2012/07/10 : Sungjoong Kang(sj3.kang (at) 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 41 namespace 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 48 class SignalDrivenThread:public Thread { 49 public: 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 63 private: 64 status_t readyToRun(); 65 status_t readyToRunInternal(); 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 uint32_t m_pendingSignal; 75 76 Mutex m_signalMutex; 77 Condition m_threadCondition; 78 bool m_isTerminated; 79 }; 80 81 }; // namespace android 82 83 #endif 84
