Timer-logs recorded per second

1 # include <iostream> 2 # include <windows. h> 3 # include <MMSystem. h> 4 # pragma comment (lib, "winmm. lib ") 5 # include <time. h> 6 # include <stdint. h> 7 using namespace std; 8 9 # define MAX_LOG_FILE_SIZE 0x4000000 // 64MB10 11 class CTimer {12 public: 13 CTimer () 14 {15 m_tickCount = 0; 16} 17 ~ CTimer () 18 {19 if (m_timerID) 20 {21 timeKillEvent (m_timerID); 22} 23} 24 static void CALLBACK TimerCallBack (UINT uTimeID, UINT uMsg, DWORD dwUser, DWORD dw1, DWORD dw2); 25 void OnTimer (); 26 void Log (const char * fmt ,...); 27 28 protected: 29 void Call () 30 {31 Log ("tick... % d ", m_tickCount); 32 ++ m_tickCount; 33} 34 void print_format_time (FILE * fileName); 35 36 private: 37 MMRESULT m_timerID; 38 int m_tickCount ; 39}; 40 41 void CALLBACK CTimer: TimerCallBack (UINT uTimeID, UINT uMsg, DWORD dwUser, DWORD dw1, DWORD dw2) 42 {43 CTimer * _ ctimer = (CTimer *) dwUser; 44 _ ctimer-> Call (); 45} 46 47 void CTimer: OnTimer () 48 {49 timeSetEvent (1000,1, (LPTIMECALLBACK) TimerCallBack, (DWORD) this, TIME_PERIODIC); 50} 51 52 void CTimer: print_format_time (FILE * fileName) 53 {54 SYSTEMTIME _ effecime; 55 GetLocalTime (& _ effecime); 56 57 Fprintf (fileName, "% 04d-% 02d-% 02d % 02d: % 02d: % 02d. % 06d ", _ policime. wYear, 58 _ invalid IME. wMonth, _ required IME. wDay, _ policime. wHour, _ javasime. wMinute, _ policime. wSecond, _ policime. wMilliseconds); 59} 60 61 void CTimer: Log (const char * fmt ,...) 62 {63 static int file_no (0); 64 static FILE * log_fp = NULL; 65 if (log_fp = NULL) 66 {67 char log_name [64]; 68 uint32_t pid; 69 pid = (uint32_t) GetCurrentProcessId (); 70 sprintf_s (lo G_name, 64, "log_cmdd_cmdd.txt", pid, file_no); 71 fopen_s (& log_fp, log_name, "w"); 72 if (! Log_fp) 73 return; 74} 75 print_format_time (log_fp); 76 77 va_list ap; 78 va_start (ap, fmt); 79 vfprintf_s (log_fp, fmt, ap ); 80 va_end (ap); 81 fflush (log_fp); 82 fprintf (log_fp, "\ n"); 83 if (ftell (log_fp)> MAX_LOG_FILE_SIZE) 84 {85 fclose (log_fp); 86 log_fp = NULL; 87 ++ file_no; 88} 89 90} 91 92 int main (int argc, char * argv []) 93 {94 CTimer _ timer; 95 _ timer. onTimer (); 96 system ("pause"); 97 return 0; 98}

 

Timer-logs recorded per second