stopwatch.h

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/*
 * Copyright (c) 2023 László Várady <laszlo.varady93@gmail.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * As an additional exemption you are allowed to compile & link against the
 * OpenSSL libraries as published by the OpenSSL project. See the file
 * COPYING for details.
 *
 */
 
#ifndef STOPWATCH_H
#define STOPWATCH_H
 
#include "syslog-ng.h"
#include "compat/time.h"
 
typedef struct _Stopwatch
{
  struct timespec start_time;
} Stopwatch;
 
static inline void
stopwatch_start(Stopwatch *self)
{
  clock_gettime(CLOCK_MONOTONIC, &self->start_time);
}
 
static inline guint64
stopwatch_get_elapsed_nsec(Stopwatch *self)
{
  struct timespec stop_time;
  clock_gettime(CLOCK_MONOTONIC, &stop_time);
 
  return (stop_time.tv_sec - self->start_time.tv_sec) * 1000000000
         + (stop_time.tv_nsec - self->start_time.tv_nsec);
}
 
#endif