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/*
* Copyright (c) 2013 Red Hat.
*
* 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 2 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.
*/
#include <pmapi.h>
#include <impl.h>
#include <sys/time.h>
#include <sys/resource.h>
static struct rusage start_rsrc, final_rsrc;
static struct timeval start_time, final_time;
static double user, kernel, elapsed;
double get_user_timer() { return user; }
double get_kernel_timer() { return kernel; }
double get_elapsed_timer() { return elapsed; }
void
start_timing(void)
{
getrusage(RUSAGE_SELF, &start_rsrc);
gettimeofday(&start_time, NULL);
}
void
stop_timing(void)
{
gettimeofday(&final_time, NULL);
getrusage(RUSAGE_SELF, &final_rsrc);
/* accumulate the totals as we go */
user += __pmtimevalSub(&final_rsrc.ru_utime, &start_rsrc.ru_utime);
kernel += __pmtimevalSub(&final_rsrc.ru_stime, &start_rsrc.ru_stime);
elapsed += __pmtimevalSub(&final_time, &start_time);
}
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