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util/time: Add functions to measure time with high precision

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icex2 2020-10-13 22:51:25 +02:00
parent 1ab724eb45
commit d9a96a818e
2 changed files with 48 additions and 0 deletions
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34
src/main/util/time.c
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@ -66,4 +66,38 @@ void util_time_get_current_time(struct util_time_timestamp* timestamp)
timestamp->month = tm->tm_mon + 1;
// Years since 1900
timestamp->year = tm->tm_year + 1900;
}
util_time_counter_t util_time_get_counter()
{
struct timespec tspec;
clock_gettime(CLOCK_MONOTONIC, &tspec);
return tspec.tv_sec * 1000 * 1000 * 1000 + tspec.tv_nsec;
}
uint64_t util_time_get_elapsed_ns(util_time_counter_t counter_delta)
{
return counter_delta;
}
uint64_t util_time_get_elapsed_us(util_time_counter_t counter_delta)
{
return counter_delta / 1000;
}
double util_time_get_elapsed_us_double(util_time_counter_t counter_delta)
{
return ((double) counter_delta) / 1000.0;
}
uint32_t util_time_get_elapsed_ms(util_time_counter_t counter_delta)
{
return counter_delta / 1000 / 1000;
}
double util_time_get_elapsed_ms_double(util_time_counter_t counter_delta)
{
return ((double) counter_delta) / 1000.0 / 1000.0;
}

14
src/main/util/time.h
View File

@ -13,6 +13,8 @@ struct util_time_timestamp {
uint16_t millisec;
};
typedef uint64_t util_time_counter_t;
void util_time_sleep_ns(uint64_t time_ns);
void util_time_sleep_us(uint64_t time_us);
@ -23,4 +25,16 @@ void util_time_sleep_sec(uint64_t time_sec);
void util_time_get_current_time(struct util_time_timestamp* timestamp);
util_time_counter_t util_time_get_counter();
uint64_t util_time_get_elapsed_ns(util_time_counter_t counter_delta);
uint64_t util_time_get_elapsed_us(util_time_counter_t counter_delta);
double util_time_get_elapsed_us_double(util_time_counter_t counter_delta);
uint32_t util_time_get_elapsed_ms(util_time_counter_t counter_delta);
double util_time_get_elapsed_ms_double(util_time_counter_t counter_delta);
#endif //UTIL_TIME_H