timer.h

Go to the documentation of this file.

#pragma once

#include <time.h>
#include <sys/time.h>

typedef struct timeval timer;

#define timer_start(timer_name) gettimeofday(&timer_name, NULL)

#define timer_restart(timer_name) timer_start(timer_name)

#define timer_value_seconds(timer_name) ((double)timer_value_milli(timer_name) / 1000.0)

#define timer_value_milli(timer_name) ({\
                    struct timeval __rs_tmp_timer;\
                    int __rs_timedif;\
                    gettimeofday(&__rs_tmp_timer, NULL);\
                    __rs_timedif = __rs_tmp_timer.tv_sec * 1000 + __rs_tmp_timer.tv_usec / 1000;\
                    __rs_timedif -= timer_name.tv_sec * 1000 + timer_name.tv_usec / 1000;\
                    __rs_timedif;\
                })

#define timer_value_micro(timer_name) ({\
                    struct timeval __rs_tmp_timer;\
                    int __rs_timedif;\
                        gettimeofday(&__rs_tmp_timer, NULL);\
                    __rs_timedif = __rs_tmp_timer.tv_sec * 1000000 + __rs_tmp_timer.tv_usec;\
                    __rs_timedif -= timer_name.tv_sec * 1000000 + timer_name.tv_usec;\
                    __rs_timedif;\
                })

#define TIMER_BUFFER_LEN 64
#define timer_tostring(timer_name, string) do {\
                    time_t __nowtime;\
                    struct tm *__nowtm;\
                    __nowtime = (timer_name).tv_sec;\
                    __nowtm = localtime(&__nowtime);\
                    strftime((string), sizeof (string), "%Y-%m-%d %H:%M:%S", __nowtm);\
                } while(0)