libopenshot/include/Sleep.h

/**
 * @file
 * @brief Header file for Sleep functions
 * @author Jonathan Thomas <jonathan@openshot.org>
 *
 * @section LICENSE
 *
 * Copyright (c) 2008-2014 OpenShot Studios, LLC
 * <http://www.openshotstudios.com/>. This file is part of
 * OpenShot Library (libopenshot), an open-source project dedicated to
 * delivering high quality video editing and animation solutions to the
 * world. For more information visit <http://www.openshot.org/>.
 *
 * OpenShot Library (libopenshot) is free software: you can redistribute it
 * and/or modify it under the terms of the GNU Affero General Public License
 * as published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * OpenShot Library (libopenshot) is distributed in the hope that it will be
 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with OpenShot Library. If not, see <http://www.gnu.org/licenses/>.
 *
 * Also, if your software can interact with users remotely through a computer
 * network, you should also make sure that it provides a way for users to
 * get its source. For example, if your program is a web application, its
 * interface could display a "Source" link that leads users to an archive
 * of the code. There are many ways you could offer source, and different
 * solutions will be better for different programs; see section 13 for the
 * specific requirements.
 *
 * You should also get your employer (if you work as a programmer) or school,
 * if any, to sign a "copyright disclaimer" for the program, if necessary.
 * For more information on this, and how to apply and follow the GNU AGPL, see
 * <http://www.gnu.org/licenses/>.
 */

#ifndef OPENSHOT_SLEEP_H
#define OPENSHOT_SLEEP_H

	#ifdef _WINDOWS
		#include <windows.h>

		// Define a Windows-compatible usleep method (which sleeps for X microseconds). Linux/Mac already have a method for this.
		void usleep(__int64 usec)
		{
			HANDLE timer;
			LARGE_INTEGER ft;

			ft.QuadPart = -(10*usec); // Convert to 100 nanosecond interval, negative value indicates relative time

			timer = CreateWaitableTimer(NULL, TRUE, NULL);
			SetWaitableTimer(timer, &ft, 0, NULL, NULL, 0);
			WaitForSingleObject(timer, INFINITE);
			CloseHandle(timer);
		}
	#else
		#include <unistd.h>

		// Define a Linux/Mac compatible Sleep method (which sleeps for x seconds). Windows already has a method for this.
		#define Sleep(x) usleep((x)*1000)
	#endif

#endif