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45 lines
1.7 KiB
45 lines
1.7 KiB
9 years ago
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/*
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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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#ifndef NN_STOPWATCH_INCLUDED
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#define NN_STOPWATCH_INCLUDED
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#include "err.h"
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#include "int.h"
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/* Check whether measured time is the expected time (in microseconds).
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The upper tolerance is 50ms so that the test doesn't fail even on
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very slow or very loaded systems. */
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#define time_assert(actual,expected) \
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nn_assert (actual > ((expected) - 5000) && actual < ((expected) + 50000));
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/* Measures time interval in microseconds. */
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struct nn_stopwatch {
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uint64_t start;
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};
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void nn_stopwatch_init (struct nn_stopwatch *self);
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uint64_t nn_stopwatch_term (struct nn_stopwatch *self);
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#endif
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