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/* -*- c++ -*- */
/*
* Copyright 2003 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio 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, or (at your option)
* any later version.
*
* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "time_stuff.h"
#include <sys/time.h>
#ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif
#include <unistd.h>
static double
timeval_to_secs (struct timeval *tv)
{
return (double) tv->tv_sec + (double) tv->tv_usec * 1e-6;
}
double
get_cpu_usage (void)
{
#ifdef HAVE_GETRUSAGE
struct rusage ru;
if (getrusage (RUSAGE_SELF, &ru) != 0)
return 0;
return timeval_to_secs (&ru.ru_utime) + timeval_to_secs (&ru.ru_stime);
#else
return 0; /* FIXME */
#endif
}
/*
* return elapsed time (wall time) in seconds
*/
double
get_elapsed_time (void)
{
struct timeval tv;
if (gettimeofday (&tv, 0) != 0)
return 0;
return timeval_to_secs (&tv);
}
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