Linux获取系统时间 函数

static gint64 get_nsec(){    gint64 val = 0;    struct timespec ts = {0};    clock_gettime(CLOCK_REALTIME, &ts);    val = ts.tv_sec * 1000000000 + ts.tv_nsec;    return val;}static gint64 get_usec(){    gint64 val = 0;    struct timeval tv;    gettimeofday(&tv, NULL);    val = tv.tv_sec * 1000000 + tv.tv_usec;    return val;}static gint64 get_msec(){    gint64 val = 0;    struct timeval tv;    gettimeofday(&tv, NULL);    val = tv.tv_sec * 1000 + tv.tv_usec/1000;    return val;}

获取的常数时间转为localtime

#!/usr/bin/env python#coding=utf-8import osimport sys import timeimport tracebackif __name__ == "__main__":    lines = [];     if len(sys.argv) >= 2:        if os.path.exists(sys.argv[1]):            fp = open(sys.argv[1], "r");            lines = fp.readlines();            fp.close();        else:            longtime = 0;            try:                longtime = int(sys.argv[1]);            except:                traceback.print_exc();                exit(0)            if longtime != 0:                lines.append(sys.argv[1]);            else:                print "File:%s NOT exist!" % (sys.argv[1])                exit(0);    else:        lines = sys.stdin.readlines();    for line in lines:        longtime = 0;        try:            longtime = int(line);        except:            traceback.print_exc();            exit(0);            tm0 = time.localtime(longtime);        strtime = time.strftime('%Y%m%d %02H:%02M:%02S', tm0).strip();       print "##: %d ==> %s" % (longtime, strtime)