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75 lines
2.2 KiB
75 lines
2.2 KiB
/*
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Copyright (c) 2012 Martin Sustrik All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom
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the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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IN THE SOFTWARE.
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*/
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#include "stopwatch.h"
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#if defined NN_HAVE_WINDOWS
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#include "win.h"
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void nn_stopwatch_init (struct nn_stopwatch *self)
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{
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LARGE_INTEGER time;
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QueryPerformanceCounter (&time);
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self->start = (uint64_t) (time.QuadPart);
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}
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uint64_t nn_stopwatch_term (struct nn_stopwatch *self)
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{
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LARGE_INTEGER tps;
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LARGE_INTEGER time;
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QueryPerformanceFrequency (&tps);
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QueryPerformanceCounter (&time);
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return (uint64_t) ((time.QuadPart - self->start) * 1000000 / tps.QuadPart);
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}
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#else
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#include <stdlib.h>
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#include <assert.h>
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#include <sys/time.h>
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void nn_stopwatch_init (struct nn_stopwatch *self)
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{
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int rc;
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struct timeval tv;
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rc = gettimeofday (&tv, NULL);
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assert (rc == 0);
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self->start = (uint64_t) (((uint64_t) tv.tv_sec) * 1000000 + tv.tv_usec);
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}
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uint64_t nn_stopwatch_term (struct nn_stopwatch *self)
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{
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int rc;
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struct timeval tv;
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uint64_t end;
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rc = gettimeofday (&tv, NULL);
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assert (rc == 0);
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end = (uint64_t) (((uint64_t) tv.tv_sec) * 1000000 + tv.tv_usec);
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return end - self->start;
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}
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#endif
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