C:/Active/libraries/cxutils/2.0/include/cxutils/timer.h
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00001 00002 00003 00004 00005 00006 00007 00008 00009 00010 00011 00012 00013 00014 00015 00016 00017 00018 00019 00020 00021 00022 00023 00024 00025 00026 00027 00028 00029 00030 00031 00032 00033 00034 00035 00036 00037 00038 00039 00040 #ifndef __CXUTILS_TIMER_H 00041 #define __CXUTILS_TIMER_H 00042 00043 #ifdef WIN32 00044 00045 #else 00046 #include <unistd.h> 00047 #endif 00048 00049 #include <set> 00050 #include <vector> 00051 #include "cxutils/thread.h" 00052 00053 namespace CxUtils 00054 { 00071 class CX_UTILS_DLL Timer 00072 { 00073 public: 00081 class CX_UTILS_DLL Callback 00082 { 00083 public: 00084 typedef std::set<Callback*> Set; 00085 00086 00087 00088 00089 00090 00091 00092 class CX_UTILS_DLL Function 00093 { 00094 public: 00095 typedef std::vector<Function> List; 00096 Function(void (*func)(void *args), void* fargs = NULL); 00097 ~Function(); 00098 void Run(); 00099 void (*mpFunctionPtr)(void* args); 00100 void *mpFunctionArgs; 00101 }; 00102 virtual void ProcessTimerEvent() = 0; 00103 }; 00104 Timer(); 00105 ~Timer(); 00106 int Start(const double frequencyHz, const double hptThresholdHz = 50); 00107 void Stop(); 00108 bool RegisterTimerEvent(Callback* timerCallback); 00109 bool RegisterTimerEvent(void (*func)(void *args), void* fargs); 00110 void RemoveTimerEvent(Callback* timerCallback); 00111 void RemoveTimerEvent(void (*func)(void *args), void* fargs); 00112 static double GetTimeMs(); 00113 static double GetTimeSeconds(); 00114 static void Pause(const unsigned int ms); 00115 // Is a periodic timer running? 00116 inline bool IsActive() const { return mTimerActive; } 00117 // Is periodic timer trying to stop. 00118 inline bool IsShuttingDown() const { return mShutdownFlag; } 00119 void TriggerEvents(); 00120 double GetFrequency() const; 00121 bool ChangeFrequency(const double frequencyHz, const double hptThresholdHz = 50); 00122 void SetName(const std::string& name) { mTimerEventThread.SetThreadName(name); } 00123 private: 00124 #ifdef WIN32 00125 class Data; 00126 Data* mpTimerData; 00127 #endif 00128 static void TimerEventThread(void *args); 00129 00130 Thread mTimerEventThread; 00131 Mutex mCallbacksMutex; 00132 Mutex mSleepMutex; 00133 Callback::Set mCallbackObjects; 00134 Callback::Function::List mCallbackFunctions; 00135 volatile unsigned int mDelayTimeMs; 00136 volatile bool mTimerActive; 00137 volatile bool mShutdownFlag; 00138 }; 00139 00140 typedef Timer::Callback TimerCallback; 00141 } 00142 00143 #endif 00144 /* End of File */
