// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "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:

//

#ifndef SS_CONN_H

#define SS_CONN_H

#include <comms-infras/ss_mcprnodemessages.h>

#include <comms-infras/ss_connprov.h>

#include <comms-infras/ss_connlegacy.h>

#include <comms-infras/ss_platsec_apiext.h>

#include <ss_std.h>

#include <comms-infras/ss_mmnode.h>

#include <comms-infras/ss_mmnode_subsess.h>

class TSockOpt;

namespace ConnStates

{

	class TEmptyProgressQueueMutex;

	class TParseECNStart;

	class TClearProgressQueue;

	class TRequestCSRCreation;

	class TProcessStateChange;

    class TEnqueueStateChange;	

	class TAwaitingStateChange;

	class TProcessIncomingConnection;

	class TProcessProgressRequest;

	class TParseECNAttach;

	class TProcessBinderResponseForCpr;

	class TCompleteLegacyAttach;

	class TProcessEnumResponse;

	class TGenerateConnectionUpProgress;

	class TGenerateConnectionDownProgress;

	class TNoTagOrCancelAllInterfaceWorker;

	class TCancelAllInterfaceNotificationWorker;

}

namespace AllInterfaceNotificationActivity

{

class TStartLinkNotification;

class TEnqueueNotification;

class TSendErrorToConnection;

}

namespace EnumerateConnectionsActivity

{

class TQueryTierStatus;

class TCacheConnectionInfo;

class TCompleteClient;

}

namespace ConnSubConnEventsActivity

{

class TProcessSubConnEvent;

}

namespace ESock

{

class TCprRetrieveProgress;

class TCprRetrieveLastProgressError;

class CConnectionInfo : public Meta::SMetaData

/**

@internalTechnology

*/

	{

public:

    enum { ETypeId = 0, EUid = 0x10283005 };

	static CConnectionInfo* NewL(const Den::TSubSessionUniqueId& aSubSessionId);

	virtual ~CConnectionInfo()

			{}

	Den::TSubSessionUniqueId SubSessionId() const

			{

			return iSubSessionId;

			}

	void SetSubSessionId(const Den::TSubSessionUniqueId& aSubSessionId)

			{

			iSubSessionId = aSubSessionId;

			}

	DATA_VTABLE

protected:

	inline CConnectionInfo(const Den::TSubSessionUniqueId& aSubSessionId)

		:	iSubSessionId(aSubSessionId)

			{

			}

	Den::TSubSessionUniqueId iSubSessionId;

	};

struct TCommsControlBinder;

struct TErrContext;

class XCommsDataObject;

/**

Server side class representing an RConnection

@internalComponent

*/

NONSHARABLE_CLASS(CConnection) : public CMMSockSubSession,

                                 private ASubSessionPlatsecApiExt,

                                 public ITFHIERARCHY_LINK_1(CConnection, MeshMachine::AMMNodeBase, MPlatsecApiExt)

	{

	friend class CSockSession;

	friend class ConnStates::TEmptyProgressQueueMutex;

#ifdef __X86GCC__

 	// gcc-mingw does not support declaring friends from different namespaces so we define proxy

 	// functions to do the cast.

    friend  CConnection* __x86gcc_connection_cast(Messages::ANode* aNode);

    friend  CConnection& __x86gcc_connection_cast(Messages::ANode& aNode);

#elif !defined(__GCCXML__)

    friend  CConnection* mcfnode_cast<CConnection>(Messages::ANode* aNode);

	friend  CConnection& mcfnode_cast<CConnection>(Messages::ANode& aNode);

#endif

	//Friendly activities:

	//Friendly transitions and states:

	friend class ConnStates::TParseECNStart;

	friend class ConnStates::TClearProgressQueue;

	friend class ConnStates::TRequestCSRCreation;

	friend class ConnStates::TProcessStateChange;

	friend class ConnStates::TAwaitingStateChange;

	friend class ConnStates::TEnqueueStateChange;  

	friend class ConnStates::TProcessIncomingConnection;

	friend class ConnStates::TProcessProgressRequest;

	friend class ConnStates::TParseECNAttach;

	friend class ConnStates::TProcessBinderResponseForCpr;

	friend class ConnStates::TCompleteLegacyAttach;

	friend class ConnStates::TProcessEnumResponse;

	friend class ESock::TCprRetrieveLastProgressError;

	friend class ESock::TCprRetrieveProgress;

	friend class EnumerateConnectionsActivity::TQueryTierStatus;

	friend class EnumerateConnectionsActivity::TCacheConnectionInfo;

	friend class EnumerateConnectionsActivity::TCompleteClient;

	friend class AllInterfaceNotificationActivity::TEnqueueNotification;

	friend class AllInterfaceNotificationActivity::TSendErrorToConnection;

	friend class ConnSubConnEventsActivity::TProcessSubConnEvent;

	friend class ConnStates::TGenerateConnectionUpProgress;

	friend class ConnStates::TGenerateConnectionDownProgress;

	friend class ConnStates::TNoTagOrCancelAllInterfaceWorker;

	friend class ConnStates::TCancelAllInterfaceNotificationWorker;

public:

	typedef ITFHIERARCHY_LINK_1(CConnection, MeshMachine::AMMNodeBase, MPlatsecApiExt) TIfStaticFetcherNearestInHierarchy;

public:

	// methods for creating CConnection instances

	static CConnection* NewLC(CSockSession *aSession, CPlayer* aPlayer, TUid aTierId, const Den::TSubSessionUniqueId aSubSessionUniqueId);

	static CConnection* NewLC(CSockSession *aSession, CPlayer* aPlayer, const CConnection& aExistingConnection, const Den::TSubSessionUniqueId aSubSessionUniqueId);

	virtual Den::TSubSessInfo Type() const

		{

		return TCFSubSessInfo(TCFSubSessInfo::EConnection);

		}

	//Attached to interface in monitor mode?

	inline TBool IsMonitor() const

		{

		return iIsMonitor;

		}

    void ReturnInterfacePtrL(MPlatsecApiExt*& aInterface);

    Messages::RNodeInterface* DefaultSubConnectionServiceProvider();

    TInt CheckCloneOpenPolicy(const RMessagePtr2& aMessage) const;

	inline CConnectionInfo* ConnectionInfo() const

			{

			return iConnectionInfo;

			}

protected:

	void Received(MeshMachine::TNodeContextBase& aContext);

	void ReceivedL(const Messages::TRuntimeCtxId& aSender, const Messages::TNodeId& aRecipient, Messages::TSignatureBase& aCFMessage); //Messages::ANode

//Signals from CSockSubSession

	virtual void FinalCompleteAllBlockedMessages(TInt aResult); //Always KErrAbort

	virtual void ProcessMessageL(); //IPC message arrived

private: //Utility functions

	void ForwardToServiceProviderL(const Messages::TSignalBase& aCFMessage);

	inline void ResetLastProgressError();

	void SetCloneOpenPolicyL(TUint aOptionName);

private:

	virtual ~CConnection(); //Only my friend or subsess can delete me

protected:

	CConnection(CSockSession* aSession, CPlayer* aPlayer, TUid aTierId, const Den::TSubSessionUniqueId aSubSessionUniqueId);

	void ConstructL();

	void CloneL(const CConnection& aExistingConnection);

private: // Underlying implementations of individual RConnection methods

	void GetReferenceL();

	void ControlL();

	void ProgressL();

	void LastProgressErrorL();

	void GetOrSetParametersL();

	void GetParametersResponseL(TBool aReturnLength);

	void CancelIoctl();

private:

	TUint iSelectedProgressStage;			// the particular stage required for selected progress requests.

	TProgressQueue iProgressQueue;			// queue of progress notifications received

	Elements::TStateChange iLastProgress;		// last progress notified, so we can filter duplicates

	Elements::TStateChange iLastProgressError;	// last progress received which had an error

	TUid iTierId;

	TSecurityPolicy	iCloneOpenPolicy;       // used for security checking during RConnection::Open(..., TName&)

    TBool iCloneOpenEnabled   :1;  			// flag indicating that iCloneOpenPolicy is initialized and "clone" open is enabled

    TBool iIsMonitor          :1;

	XCommsDataObject* iCommsDataObject;

	TUint iCommsDataObjectLength;	// output query length

protected:

	//-=============================================

	//Legacy function

	friend class AConnectionLegacy;

	AConnectionLegacy iLegacyConnection;

	//-=============================================

	CConnectionInfo *iConnectionInfo;

	};

//inline TBool CConnection::IsConnectionActive() const

//	{ return iConnectionProvider.Type() == RNodeInterface::EServProvider; } //WHO ADDS THIS THINGS?????????????

inline void CConnection::ResetLastProgressError()

	{ iLastProgressError.iError = KErrNone; iLastProgressError.iStage = KConnectionUninitialised; };

#ifdef __X86GCC__

 	// gcc-mingw does not support declaring friends from different namespaces so we define proxy

 	// functions to do the cast.

	inline CConnection* __x86gcc_connection_cast(Messages::ANode* aNode)

    	{

    	return static_cast<CConnection*>(aNode);

    	}

	inline CConnection& __x86gcc_connection_cast(Messages::ANode& aNode)

    	{

    	return static_cast<CConnection&>(aNode);

    	}

#endif

} // namespace ESock

#ifdef __X86GCC__

	namespace Messages

	{

 	// gcc-mingw does not support declaring friends from different namespaces so we define proxy

 	// functions to do the cast.

	template <>

	inline ESock::CConnection* mnode_cast<ESock::CConnection>(Messages::ANode* aNode)

		{

		return ESock::__x86gcc_connection_cast(aNode);

		}

	template <>

	inline ESock::CConnection& mnode_cast<ESock::CConnection>(Messages::ANode& aNode)

		{

		return ESock::__x86gcc_connection_cast(aNode);

		}

	}

#endif

NONSHARABLE_CLASS(CAllInterfaceNotificationWorker) :

	public CBase, public ESock::ACFMMNodeIdBase

	{

friend class AllInterfaceNotificationActivity::TStartLinkNotification;

friend class AllInterfaceNotificationActivity::TEnqueueNotification;

friend class AllInterfaceNotificationActivity::TSendErrorToConnection;

public:

    CAllInterfaceNotificationWorker(ESock::CConnection& aConnection);

    virtual ~CAllInterfaceNotificationWorker();

    void ReceivedL(const Messages::TRuntimeCtxId& aSender, const Messages::TNodeId& aRecipient, Messages::TSignatureBase& aMessage);

private:

    void Received(MeshMachine::TNodeContextBase& aContext);

	ESock::CConnection& iConnection;

	};

#endif

// SS_CONN_H