--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eapol/eapol_framework/eapol_common/am/include/abs_eap_am_mutex.h	Thu Dec 17 08:47:43 2009 +0200
@@ -0,0 +1,184 @@
+/*
+* 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( _ABS_EAP_AM_MUTEX_H_ )
+#define _ABS_EAP_AM_MUTEX_H_
+
+#include "eap_am_types.h"
+#include "eap_variable_data.h"
+#include "eap_am_export.h"
+
+class eap_am_mutex_reference_c;
+
+// ---------------------------------------------
+
+/// This class is interface to mutex.
+class EAP_EXPORT abs_eap_am_mutex_c
+{
+private:
+
+public:
+
+	EAP_FUNC_IMPORT virtual ~abs_eap_am_mutex_c();
+
+	EAP_FUNC_IMPORT abs_eap_am_mutex_c();
+
+	// - - - - - - - - - - - - - - - - - - - - - - - -
+
+	/**
+	 * This function enters the mutex. Thread will block until the mutex is released
+	 * by other owner of the mutex.
+	 */
+	EAP_FUNC_IMPORT virtual eap_status_e mutex_enter() = 0;
+
+	/**
+	 * This function leaves the mutex. Other blocking thread will continue execution.
+	 */
+	EAP_FUNC_IMPORT virtual eap_status_e mutex_leave(abs_eap_am_tools_c * const m_am_tools) = 0;
+
+	/**
+	 * The mutex handle must be dublicated in Symbian operating system for each thread.
+	 */
+	EAP_FUNC_IMPORT virtual abs_eap_am_mutex_c * dublicate_mutex() = 0;
+
+	/**
+	 * This function returns the flag that indicates whether the mutex is reserved. 
+	 * This is used in debug asserts. Those will check the mutex is really reserved when critical code is entered.
+	 */
+	EAP_FUNC_IMPORT virtual bool get_is_reserved() const = 0;
+
+	/**
+	 * Returns the validity of the mutex.
+	 */
+	EAP_FUNC_IMPORT virtual bool get_is_valid() const = 0;
+
+#if defined(USE_EAPOL_MUTEX_SEMAPHORE_TRACES)
+	EAP_FUNC_IMPORT virtual eap_am_mutex_reference_c * get_reference() const = 0;
+	EAP_FUNC_IMPORT virtual void set_am_tools(abs_eap_am_tools_c * const tools) = 0;
+#endif //#if defined(USE_EAPOL_MUTEX_SEMAPHORE_TRACES)
+
+	// - - - - - - - - - - - - - - - - - - - - - - - -
+
+};
+
+// ---------------------------------------------
+
+/// This class defines a reference counter of a mutex.
+class EAP_EXPORT eap_am_mutex_reference_c
+{
+
+private:
+
+	/// This is the reference count to the mutex.
+	u32_t m_reference_count;
+
+	/// This flag indicates whether the mutex is reserved. 
+	/// This is used in debug asserts. Those will check the mutex is really reserved when critical code is entered.
+	bool m_is_reserved;
+
+	// On purpose unimplemented constructors.
+	eap_am_mutex_reference_c(eap_am_mutex_reference_c &source);
+	const eap_am_mutex_reference_c & operator=(const eap_am_mutex_reference_c& source);
+
+public:
+
+	EAP_FUNC_IMPORT virtual ~eap_am_mutex_reference_c();
+
+	EAP_FUNC_IMPORT eap_am_mutex_reference_c();
+
+	/**
+	 * This function adds one reference to the mutex. 
+	 */
+	EAP_FUNC_IMPORT void add_reference();
+
+	/**
+	 * This function removes one reference to the mutex. 
+	 */
+	EAP_FUNC_IMPORT void remove_reference();
+
+	/**
+	 * This function returns the reference count of the mutex. 
+	 */
+	EAP_FUNC_IMPORT u32_t get_reference_count();
+
+	/**
+	 * This function sets the flag that indicates whether the mutex is reserved. 
+	 */
+	EAP_FUNC_IMPORT void set_is_reserved(const bool is_reserved);
+
+	/**
+	 * This function returns the flag that indicates whether the mutex is reserved. 
+	 * This is used in debug asserts. Those will check the mutex is really reserved when critical code is entered.
+	 */
+	EAP_FUNC_IMPORT bool get_is_reserved();
+};
+
+// ---------------------------------------------
+
+/// This class is base of the mutex.
+class EAP_EXPORT eap_am_mutex_base_c
+{
+private:
+
+	eap_am_mutex_reference_c * m_reference;
+
+	bool m_is_valid;
+
+	// On purpose unimplemented constructors.
+	eap_am_mutex_base_c(eap_am_mutex_base_c &source);
+	const eap_am_mutex_base_c & operator=(const eap_am_mutex_base_c& source);
+
+public:
+
+	EAP_FUNC_IMPORT virtual ~eap_am_mutex_base_c();
+
+	EAP_FUNC_IMPORT eap_am_mutex_base_c();
+
+	EAP_FUNC_IMPORT eap_am_mutex_base_c(const eap_am_mutex_base_c * const owner);
+
+	/**
+	 * This function returns pointer to the reference counter object of the mutex.
+	 */
+	EAP_FUNC_IMPORT eap_am_mutex_reference_c * get_reference() const;
+
+	// - - - - - - - - - - - - - - - - - - - - - - - -
+
+	/**
+	 * This function returns the flag that indicates whether the mutex is reserved. 
+	 * This is used in debug asserts. Those will check the mutex is really reserved when critical code is entered.
+	 */
+	EAP_FUNC_IMPORT bool get_is_reserved() const;
+
+	/**
+	 * Returns the validity of the mutex.
+	 */
+	EAP_FUNC_IMPORT bool get_is_valid() const;
+
+	// - - - - - - - - - - - - - - - - - - - - - - - -
+
+};
+
+// ---------------------------------------------
+
+#endif //#if !defined( _ABS_EAP_AM_MUTEX_H_ )
+
+
+
+// End.