// Copyright (c) 2006-2009 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 "Symbian Foundation License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.symbianfoundation.org/legal/sfl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// csesuresessionbase.cpp

// 

//

#include "csecureserverbase.h"

#include "cshutdowntimer.h"

#include <e32debug.h>

/// Lbs

#include "lbsdevloggermacros.h"

/** 

Create a new session, called from CPolicyServer

@param aVersion TVersion reference

@param aMessage RMessage2 object reference

@return CSession2 based object pointer

@internalTechnology

@released

 */	

CSession2* CSecureServerBase::NewSessionL(const TVersion &aVersion, const RMessage2& aMessage) const

	{

	TVersion v = GetServerVersion();

	if(!User::QueryVersionSupported(v, aVersion))

		{

		User::Leave(KErrNotSupported);	

		}

	CSession2* session = DoNewSessionL(aVersion, aMessage);

	return session;

	}

/** 

destrcutor, cancel if any outstanding request of shutdown timer and release it.

@internalTechnology

@released

 */	

CSecureServerBase::~CSecureServerBase()

	{

	LBSLOG(ELogP1,"->CSecureServerBase::~CSecureServerBase");

	if(iShutdownTimer)

		{

		if(iShutdownTimer->IsActive())

			iShutdownTimer->Cancel();		

		}

	delete iShutdownTimer;

	iShutdownTimer = NULL;

	LBSLOG(ELogP1,"->CSecureServerBase::~CSecureServerBase");

	}

/** 

Create shut down timer

@internalTechnology

@released

 */	

void CSecureServerBase::BaseConstructL(TBool aShutdownTimerRequired)

	{

	LBSLOG(ELogP1,"->CSecureServerBase::BaseConstructL");

	iBaseConstructCalled = ETrue;

	if(aShutdownTimerRequired)

		{

		iShutdownTimer = new (ELeave) CShutdownTimer();

		iShutdownTimer->ConstructL();

		}

	LBSLOG(ELogP1,"<-CSecureServerBase::BaseConstructL");

	}

/** 

constructor, create server base with specified priority and policy, default shut down time delay

@param aPriority Defined server priority

@param aSecurityPolicy A TPolicy object reference, to define server security policy

@internalTechnology

@released

 */	

CSecureServerBase::CSecureServerBase(TInt aPriority, const TPolicy& aSecurityPolicy) : CPolicyServer(aPriority, aSecurityPolicy),

																						iShutdownDelay(KDefaultShutdownDelay)	

	{

	// nothing to do?

	}

/** 

Increase the session count by 1

The function is called whenever a new session is created, cancel the current outstanding request of shutdown timer

@internalTechnology

@released

 */	

void CSecureServerBase::IncSession()

	{

	LBSLOG(ELogP1,"->CSecureServerBase::IncSession");

	__ASSERT_ALWAYS(iBaseConstructCalled, PanicServer(EBaseConstructNotCalled));

	++iSessionCount;

	if(iShutdownTimer)

		{

		iShutdownTimer->Cancel();

		}

	LBSLOG(ELogP1,"<-CSecureServerBase::IncSession");	

	}

/** 

Decrease the session count by 1

The function is called whenever a new session is released, start shutdown timer with current shut down timer delay

@internalTechnology

@released

 */	

void CSecureServerBase::DecSession()

	{

	LBSLOG(ELogP1,"->CSecureServerBase::DecSession");

	__ASSERT_ALWAYS(iBaseConstructCalled, PanicServer(EBaseConstructNotCalled));

	--iSessionCount;

	if(iSessionCount > 0)

		return; // bail out early

	// ~CSecureSessionBase calls this, but it can be called after

	// ~CSecureServerBase(!) e.g. a forced shutdown of the server with clients still connected

	// so we need to guard this.

	if(iShutdownTimer)

		{

		iShutdownTimer->Start(iShutdownDelay); // otherwise start the shutdown timer.

		}

	LBSLOG(ELogP1,"<-CSecureServerBase::DecSession");	

	}

/** 

Return the session count

@return Session count

@internalTechnology

@released

 */	

TInt CSecureServerBase::GetSessionCount() const

		{

		__ASSERT_ALWAYS(iBaseConstructCalled, PanicServer(EBaseConstructNotCalled));

		return iSessionCount;

		}

/** 

Get the current shut down delay

@return Shut down time delay

@internalTechnology

@released

 */			

TTimeIntervalMicroSeconds32 CSecureServerBase::GetShutdownDelay() const

	{

	__ASSERT_ALWAYS(iBaseConstructCalled, PanicServer(EBaseConstructNotCalled));

	return iShutdownDelay;

	}

/** 

Set shut down delay

@param aDelay Shut down time delay

@internalTechnology

@released

 */	

void CSecureServerBase::SetShutdownDelay(const TTimeIntervalMicroSeconds32 aDelay)

	{

	__ASSERT_ALWAYS(iBaseConstructCalled, PanicServer(EBaseConstructNotCalled));

	iShutdownDelay = aDelay;

	}

/** 

Panic the server with specified panic reason code

@param aPanicCode Panic reason code

@internalTechnology

@released

 */	

void CSecureServerBase::PanicServer(TInt aPanicCode) const

	{

	_LIT(KSecureServerBase, "SecureServerBase");

	User::Panic(KSecureServerBase, aPanicCode);

	}