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//
// Copyright 2016 Garrett D'Amore <garrett@damore.org>
//
// This software is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt). A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//
#include "core/nng_impl.h"
#ifdef PLATFORM_WINDOWS
nni_time
nni_plat_clock(void)
{
// We are limited by the system clock, but that is ok.
return (GetTickCount64()*1000);
}
void
nni_plat_usleep(nni_duration dur)
{
uint64_t exp;
// Convert duration to msec, rounding up.
dur += 999;
dur /= 1000;
exp = (uint64_t) GetTickCount64() + dur;
// Sleep() would be our preferred API, if it didn't have a nasty
// feature where it rounds *down*. We always want to sleep *at
// least* the requested amount of time, and never ever less.
// If we wind up sleeping less, then we will sleep(1) in the hope
// of waiting until the next clock tick.
Sleep((DWORD) dur);
while ((uint64_t) GetTickCount64() < exp) {
Sleep(1);
}
}
#else
// Suppress empty symbols warnings in ranlib.
int nni_win_clock_not_used = 0;
#endif // PLATFORM_WINDOWS
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