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#include <sys/time.h> #include <time.h> #include <stdio.h> /// @brief 返回1970年1月1日到当前的时间，以毫秒为单位显示 time_t GetTimerInterval(void) { struct timeval tv; struct timezone tz; gettimeofday(&tv, &tz); return (tv.tv_sec*1000 + tz.tz_minuteswest*60*1000 + tv.tv_usec/1000 ); } /// @brief 返回1970年1月1日到当前的时间，以秒为单位显示 time_t GetTimeSecond(void) { struct timeval tv; struct timezone tz; gettimeofday(&tv, &tz); return tv.tv_sec + tz.tz_minuteswest*60; } /// @brief UTC时间转换成当前时间，以秒为单位 time_t UTCToLocalTime(time_t utcTime) { struct timeval tv; struct timezone tz; gettimeofday(&tv, &tz); return utcTime + tz.tz_minuteswest*60; } /// @brief 当前时间转换成UTC时间，以秒为单位 time_t LocalToUTCTime(time_t localTime) { struct timeval tv; struct timezone tz; gettimeofday(&tv, &tz); return localTime + tz.tz_minuteswest*60; } /// @brief 获得当前系统时间 void GetSystemTime(int *year, int *month, int *day, int *week, int *hour, int *minute, int *second) { struct tm *tm_time; time_t curTime = GetTimeSecond(); tm_time = gmtime(&curTime); if(year != NULL) { *year = tm_time->tm_year + 1900; } if(month != NULL) { *month = tm_time->tm_mon+1; } if(day != NULL) { *day = tm_time->tm_mday; } if(week != NULL) { *week = tm_time->tm_wday; } if(hour != NULL) { *hour = tm_time->tm_hour; } if(minute != NULL) { *minute = tm_time->tm_min; } if(second != NULL) { *second = tm_time->tm_sec; } } void LocalSetSystemTime(int year,int month,int day,int hour,int minute,int second,int tmieZone) { struct timeval tv; struct timezone tz; struct tm tm_time; tm_time.tm_sec = second; tm_time.tm_min = minute; tm_time.tm_hour = hour; tm_time.tm_mday = day; tm_time.tm_mon = month; tm_time.tm_year = year; tm_time.tm_wday = 0; tm_time.tm_yday = 0; tm_time.tm_isdst = 0; tv.tv_sec = mktime(&tm_time) - timezone*60*60; tv.tv_usec = 0; tz.tz_minuteswest = timeZone*60 tz.tz_dsttime = 0; settimeofday(&tv,&tz); } void UTCSetSystemTime(int year, int month, int day, int hour, int minute, int second, int timeZone) { struct timeval tv; struct timezone tz; struct tm tm_time; tm_time.tm_sec = second; tm_time.tm_min = minute; tm_time.tm_hour = hour; tm_time.tm_mday = day; tm_time.tm_mon = month; tm_time.tm_year = year; tm_time.tm_wday = 0; tm_time.tm_yday = 0; tm_time.tm_isdst = 0; tv.tv_sec = mktime( &tm_time); tv.tv_usec = 0; tz.tz_minuteswest = timeZone * 60; tz.tz_dsttime = 0; settimeofday( &tv, &tz); } int main(int argc, char *argv[]) { //time_t t; int t; #if 0 t = GetTimerInterval(); t = GetTimeSecond(); printf("now is %d\n",t); #endif int year,month,day,week,hour,minute,second; GetSystemTime(&year,&month,&day,&week,&hour,&minute,&second); printf("%d-%d-%dweek[%d][%d:%d:%d]\n",year,month,day,week,hour,minute,second); return 0; } |
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