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87 lines
2.0 KiB
C++
87 lines
2.0 KiB
C++
/*
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Copyright (c) 2007-2010 iMatix Corporation
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This file is part of 0MQ.
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0MQ is free software; you can redistribute it and/or modify it under
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the terms of the Lesser GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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0MQ is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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Lesser GNU General Public License for more details.
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You should have received a copy of the Lesser GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <assert.h>
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#include <stdlib.h>
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#ifdef _WIN32
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# include "../src/windows.hpp"
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#else
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# include <sys/time.h>
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# include <unistd.h>
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#endif
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#include "../src/stdint.hpp"
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#ifdef _WIN32
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static uint64_t now ()
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{
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// Get the high resolution counter's accuracy.
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LARGE_INTEGER ticksPerSecond;
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QueryPerformanceFrequency (&ticksPerSecond);
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// What time is it?
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LARGE_INTEGER tick;
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QueryPerformanceCounter (&tick);
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// Convert the tick number into the number of seconds
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// since the system was started.
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double ticks_div = (double) (ticksPerSecond.QuadPart / 1000000);
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return (uint64_t) (tick.QuadPart / ticks_div);
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}
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void perf_sleep (int seconds_)
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{
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Sleep (seconds_ * 1000);
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}
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#else /* not _WIN32 */
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static uint64_t now ()
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{
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struct timeval tv;
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int rc;
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rc = gettimeofday (&tv, NULL);
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assert (rc == 0);
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return (tv.tv_sec * (uint64_t) 1000000 + tv.tv_usec);
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}
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void perf_sleep (int seconds_)
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{
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sleep (seconds_);
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}
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#endif /* _WIN32 */
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void *stopwatch_start ()
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{
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uint64_t *watch = (uint64_t*) malloc (sizeof (uint64_t));
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assert (watch);
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*watch = now ();
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return (void*) watch;
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}
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unsigned long stopwatch_stop (void *watch_)
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{
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uint64_t end = now ();
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uint64_t start = *(uint64_t*) watch_;
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free (watch_);
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return (unsigned long) (end - start);
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}
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