DSEventSemaphore.h   [plain text]


/*
 * Copyright (c) 2002 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
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 * @APPLE_LICENSE_HEADER_END@
 */

/*!
 * @header DSEventSemaphore
 * Interface for the DSEventSemaphore (gating lock) class.
 */

#ifndef _DSEventSemaphore_H_
#define _DSEventSemaphore_H_

#include "DSSemaphore.h"

// --------------------------------------------------------------------------------
// DSEventSemaphore class definition
//
// --------------------------------------------------------------------------------

class DSEventSemaphore : public DSSemaphore
{
public:
	/**** Instance methods. ****/
	// ctor and dtor.
			DSEventSemaphore		( bool posted = false ) ;
	virtual ~DSEventSemaphore	( void ) ;

	// Superclass overrides.
	virtual void		Signal	( void ) ;
	virtual sInt32		Wait	( sInt32 milliSecs = kForever ) ;
	virtual uInt32		Reset	( void ) ;
};

#endif /* _DSEventSemaphore_H_ */