/*

* 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.

*

*/

// This is enumeration of EAPOL source code.

#if defined(USE_EAP_MINIMUM_RELEASE_TRACES)

	#undef EAP_FILE_NUMBER_ENUM

	#define EAP_FILE_NUMBER_ENUM 602 

	#undef EAP_FILE_NUMBER_DATE 

	#define EAP_FILE_NUMBER_DATE 1127594498 

#endif //#if defined(USE_EAP_MINIMUM_RELEASE_TRACES)

// INCLUDES

#include "eap_am_memory.h"

#include "eap_am_mutex_symbian.h"

#include "abs_eap_am_mutex.h"

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

//

EAP_FUNC_EXPORT eap_am_mutex_symbian_c::~eap_am_mutex_symbian_c()

{

	m_mutex.Close();

	m_owner_thread.Close();

}

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

//

EAP_FUNC_EXPORT eap_am_mutex_symbian_c::eap_am_mutex_symbian_c()

	: m_is_valid(false)

{

	if (eap_am_mutex_base_c::get_is_valid() == false)

	{

		return;

	}

	m_mutex.CreateLocal();

	RThread thisThread; // Generic handle meaning "the current thread"

	TInt err = thisThread.Duplicate(thisThread);    // a specific handle

	if (err == KErrNone)

	{

		m_is_valid = true;

	}

	m_owner_thread = thisThread;

}

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

//

EAP_FUNC_EXPORT eap_am_mutex_symbian_c::eap_am_mutex_symbian_c(const eap_am_mutex_symbian_c * const owner)

	: eap_am_mutex_base_c(owner)

	, m_is_valid(false)

{

	if (eap_am_mutex_base_c::get_is_valid() == false)

	{

		return;

	}

	m_mutex = *(owner->get_mutex());

	m_mutex.Duplicate(*(owner->get_owner_thread()));

	RThread thisThread; // Generic handle meaning "the current thread"  

	TInt err = thisThread.Duplicate(thisThread);    // a specific handle 

	if (err == KErrNone)

	{

		m_is_valid = true;

	}

	m_owner_thread = thisThread;

}

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

//

EAP_FUNC_EXPORT const RMutex * eap_am_mutex_symbian_c::get_mutex() const

{

	return &m_mutex;

}

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

//

EAP_FUNC_EXPORT const RThread * eap_am_mutex_symbian_c::get_owner_thread() const

{

	return &m_owner_thread;

}

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

//

EAP_FUNC_EXPORT eap_status_e eap_am_mutex_symbian_c::mutex_enter()

{

#if !defined(NO_EAP_MUTEX)

	m_mutex.Wait();

	get_reference()->set_is_reserved(true);

#endif //#if !defined(NO_EAP_MUTEX)

	return eap_status_ok;

}

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

//

EAP_FUNC_EXPORT eap_status_e eap_am_mutex_symbian_c::mutex_leave(abs_eap_am_tools_c * const m_am_tools)

{

	EAP_UNREFERENCED_PARAMETER(m_am_tools);

#if !defined(NO_EAP_MUTEX)

	EAP_ASSERT(get_reference()->get_is_reserved() == true);

	get_reference()->set_is_reserved(false);

	m_mutex.Signal();

#endif //#if !defined(NO_EAP_MUTEX)

	return eap_status_ok;

}

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

//

// The mutex handle must be dublicated in Symbian operating system for each thread.

EAP_FUNC_EXPORT abs_eap_am_mutex_c * eap_am_mutex_symbian_c::dublicate_mutex()

{

	eap_am_mutex_symbian_c *dublicate = new eap_am_mutex_symbian_c(this);

	return dublicate;

}

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

//

// This is used in debug asserts. Those will check the mutex is really reserved when critical code is entered.

EAP_FUNC_EXPORT bool eap_am_mutex_symbian_c::get_is_reserved() const

{

	// In Symbian we need this object to test reference flag,

	// because each thread has own duplicated mutex object.

	return get_reference()->get_is_reserved();

}

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

//

EAP_FUNC_EXPORT bool eap_am_mutex_symbian_c::get_is_valid() const

{

	return m_is_valid;

}

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

// End of file