libcruft-util/time_win32.cpp

48 lines
1.2 KiB
C++

/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Copyright 2010 Danny Robson <danny@nerdcruft.net>
*/
#include "time.hpp"
#include "platform.hpp"
#if !defined(PLATFORM_WIN32)
#error
#endif
#include <windows.h>
static const uint64_t SECOND = 1'000'000'000UL;
static const uint64_t MILLISECOND = 1'000'000UL;
///////////////////////////////////////////////////////////////////////////////
uint64_t
util::nanoseconds (void)
{
LARGE_INTEGER freq, count;
QueryPerformanceFrequency (&freq);
QueryPerformanceCounter (&count);
return count.QuadPart * SECOND / freq.QuadPart;
}
///////////////////////////////////////////////////////////////////////////////
void
util::sleep (uint64_t ns)
{
Sleep (ns / MILLISECOND);
}