//
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// Copyright 2017 Garrett D'Amore <garrett@damore.org>
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// Copyright 2017 Capitar IT Group BV <info@capitar.com>
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//
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// This software is supplied under the terms of the MIT License, a
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// copy of which should be located in the distribution where this
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// file was obtained (LICENSE.txt). A copy of the license may also be
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// found online at https://opensource.org/licenses/MIT.
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//
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#include "core/nng_impl.h"
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#ifdef NNG_PLATFORM_WINDOWS
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nni_time
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nni_clock(void)
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{
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// We are limited by the system clock, but that is ok.
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return (GetTickCount64());
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}
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void
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nni_msleep(nni_duration dur)
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{
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uint64_t exp;
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exp = (uint64_t) GetTickCount64() + dur;
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// Sleep() would be our preferred API, if it didn't have a nasty
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// feature where it rounds *down*. We always want to sleep *at
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// least* the requested amount of time, and never ever less.
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// If we wind up sleeping less, then we will sleep(1) in the hope
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// of waiting until the next clock tick.
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Sleep((DWORD) dur);
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while ((uint64_t) GetTickCount64() < exp) {
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Sleep(1);
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}
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}
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#endif // NNG_PLATFORM_WINDOWS
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