/**

 * WinPR: Windows Portable Runtime

 * Synchronization Functions

 *

 * Copyright 2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>

 *

 * 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.

 */

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <winpr/windows.h>

#include <winpr/synch.h>

#include "../log.h"

#define TAG WINPR_TAG("synch.sleep")

#ifndef _WIN32

#include <time.h>

#ifdef HAVE_UNISTD_H

#ifndef _XOPEN_SOURCE

#define _XOPEN_SOURCE 500

#endif

#include <unistd.h>

#endif

VOID Sleep(DWORD dwMilliseconds)

{

	usleep(dwMilliseconds * 1000);

}

DWORD SleepEx(DWORD dwMilliseconds, BOOL bAlertable)

{

	/* TODO: Implement bAlertable support */

	if (bAlertable)

		WLog_WARN(TAG, "%s does not support bAlertable", __FUNCTION__);

	Sleep(dwMilliseconds);

	return 0;

}

#endif

VOID USleep(DWORD dwMicroseconds)

{

#ifndef _WIN32

	usleep(dwMicroseconds);

#else

	static LARGE_INTEGER freq = { 0, 0 };

	LARGE_INTEGER t1 = { 0, 0 };

	LARGE_INTEGER t2 = { 0, 0 };

	QueryPerformanceCounter(&t1;;

	if (freq.QuadPart == 0)

	{

		QueryPerformanceFrequency(&freq);

	}

	// in order to save cpu cyles we use Sleep() for the large share ...

	if (dwMicroseconds >= 1000)

	{

		Sleep(dwMicroseconds / 1000);

	}

	// ... and busy loop until all the requested micro seconds have passed

	do

	{

		QueryPerformanceCounter(&t2;;

	} while (((t2.QuadPart - t1.QuadPart) * 1000000) / freq.QuadPart < dwMicroseconds);

#endif

}