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/*
* Copyright 2019 Anton Khirnov <anton@khirnov.net>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MG2D_TIMER_H
#define MG2D_TIMER_H
#include <stdint.h>
#include <time.h>
#include "common.h"
typedef struct Timer {
int64_t time_nsec;
int64_t nb_runs;
int64_t start;
} Timer;
void mg2di_timer_init(Timer *t);
static inline void mg2di_timer_start(Timer *t)
{
struct timespec tp;
int ret;
mg2di_assert(t->start == INT64_MIN);
ret = clock_gettime(CLOCK_MONOTONIC, &tp);
mg2di_assert(ret == 0);
t->start = (int64_t)tp.tv_sec * 1000000000L + tp.tv_nsec;
}
static inline void mg2di_timer_stop(Timer *t)
{
struct timespec tp;
int ret;
mg2di_assert(t->start != INT64_MIN);
ret = clock_gettime(CLOCK_MONOTONIC, &tp);
mg2di_assert(ret == 0);
t->time_nsec += (int64_t)tp.tv_sec * 1000000000L + tp.tv_nsec - t->start;
t->nb_runs++;
t->start = INT64_MIN;
}
#endif // MG2D_TIMER_H
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