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/*
Copyright (c) 2007-2010 iMatix Corporation
This file is part of 0MQ.
0MQ is free software; you can redistribute it and/or modify it under
the terms of the Lesser GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
0MQ 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
Lesser GNU General Public License for more details.
You should have received a copy of the Lesser GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <assert.h>
#include <stdlib.h>
#ifdef _WIN32
# include "../src/windows.hpp"
#else
# include <sys/time.h>
# include <unistd.h>
#endif
#include "../src/stdint.hpp"
#ifdef _WIN32
static uint64_t now ()
{
// Get the high resolution counter's accuracy.
LARGE_INTEGER ticksPerSecond;
QueryPerformanceFrequency (&ticksPerSecond);
// What time is it?
LARGE_INTEGER tick;
QueryPerformanceCounter (&tick);
// Convert the tick number into the number of seconds
// since the system was started.
double ticks_div = (double) (ticksPerSecond.QuadPart / 1000000);
return (uint64_t) (tick.QuadPart / ticks_div);
}
void perf_sleep (int seconds_)
{
Sleep (seconds_ * 1000);
}
#else /* not _WIN32 */
static uint64_t now ()
{
struct timeval tv;
int rc;
rc = gettimeofday (&tv, NULL);
assert (rc == 0);
return (tv.tv_sec * (uint64_t) 1000000 + tv.tv_usec);
}
void perf_sleep (int seconds_)
{
sleep (seconds_);
}
#endif /* _WIN32 */
void *stopwatch_start ()
{
uint64_t *watch = (uint64_t*) malloc (sizeof (uint64_t));
assert (watch);
*watch = now ();
return (void*) watch;
}
unsigned long stopwatch_stop (void *watch_)
{
uint64_t end = now ();
uint64_t start = *(uint64_t*) watch_;
free (watch_);
return (unsigned long) (end - start);
}
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