/*

* Copyright (c) 2001-2006 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  EAP and WLAN authentication protocols.

*

*/

#if !defined( _EAP_AM_SEMAPHORE_SYMBIAN_H_ )

#define _EAP_AM_SEMAPHORE_SYMBIAN_H_

// INCLUDES

#include "eap_am_types.h"

#include "eap_variable_data.h"

#include "eap_am_export.h"

#include <abs_eap_am_semaphore.h>

// CLASS DECLARATION

class EAP_EXPORT eap_am_semaphore_symbian_c

: public abs_eap_am_semaphore_c

, public eap_am_semaphore_base_c

{

private:

	/// Object is Symbian implementation of the semaphore.

	RSemaphore m_semaphore;

	/// Object is Symbian implementation of the thread which is owner of the semaphore.

	RThread m_owner_thread;

	bool m_is_valid;

	u32_t m_count;

	// On purpose unimplemented constructors.

	eap_am_semaphore_symbian_c(eap_am_semaphore_symbian_c &source);

	const eap_am_semaphore_symbian_c & operator=(const eap_am_semaphore_symbian_c& source);

public:

	EAP_FUNC_IMPORT virtual ~eap_am_semaphore_symbian_c();

	EAP_FUNC_IMPORT eap_am_semaphore_symbian_c(	const i32_t initial_count,const i32_t maximum_count);

	EAP_FUNC_IMPORT eap_am_semaphore_symbian_c(const eap_am_semaphore_symbian_c * const owner);

	/// Function returns pointer to Symbian semaphore.

	EAP_FUNC_IMPORT const RSemaphore * get_semaphore() const;

	/// Function returns pointer to owner thread of the semaphore.

	EAP_FUNC_IMPORT const RThread * get_owner_thread() const;

	// - - - - - - - - - - - - - - - - - - - - - - - -

	// From abs_eap_am_semaphore_c

	/**

	 * This function reserves the semaphore. Thread will block until the semaphore is released

	 * by other owner of the semaphore.

	 */

	EAP_FUNC_IMPORT eap_status_e semaphore_reserve();

	/**

	 * This function releases the semaphore. Other blocking thread will continue execution.

	 */

	EAP_FUNC_IMPORT eap_status_e semaphore_release();

	/**

	 * The semaphore handle must be dublicated in Symbian operating system for each thread.

	 */

	EAP_FUNC_IMPORT  abs_eap_am_semaphore_c * dublicate_semaphore();

	EAP_FUNC_IMPORT u32_t get_count() const;

	/**

	 * Returns the validity of the semaphore.

	 */

	EAP_FUNC_IMPORT bool get_is_valid() const;

	// - - - - - - - - - - - - - - - - - - - - - - - -

};

#endif //#if !defined( _EAP_AM_SEMAPHORE_SYMBIAN_H_ )

// End of file