// 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 "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:

//

/**

 @file

 @internalComponent

*/

#ifndef CMTPCONNECTIONMGR_H

#define CMTPCONNECTIONMGR_H

#include <e32base.h>

#include "mmtpconnectionmgr.h"

#include "mtpdebug.h"

class CMTPConnection;

class CMTPTransportPlugin;

class MMTPTransportConnection;

/**

Implements the connection manager singleton. The connection manager is a 

container class responsible for loading, storing, and managing 

@see CMTPTransportPlugin instances. The connection manager uses the ECOM 

framework to load and unload transport plug-ins on demand. 

The connection manager is not responsible for controlling or scheduling 

transport connections, but is notified by the loaded transport plug-ins as 

@see MMTPTransportConnection instances are created. At which time it will 

create and bind a new @see CMTPConnection instance to the 

@see MMTPTransportConnection instance being registered.

*/

class CMTPConnectionMgr : 

    public CBase,

    public MMTPConnectionMgr

    {

public:

    static CMTPConnectionMgr* NewL();

    ~CMTPConnectionMgr();

    IMPORT_C CMTPConnection& ConnectionL(TUint aConnectionId) const;

    TUint ConnectionCount() const;

    CMTPConnection& operator[](TInt aIndex) const;

    IMPORT_C void StartTransportL(TUid aTransport);

    IMPORT_C void StartTransportL(TUid aTransport, const TAny* aParameter);  

    IMPORT_C void QueueTransportL( TUid aTransport, const TAny* aParameter );

    IMPORT_C void SetClientSId(TUid aSecureId);  

    IMPORT_C void StopTransport(TUid aTransport);

    IMPORT_C void StopTransport( TUid aTransport, TBool aByBearer );

    IMPORT_C void StopTransports();

    IMPORT_C TInt TransportCount() const;

    IMPORT_C TUid TransportUid();

private: // From MMTPConnectionMgr

    void ConnectionClosed(MMTPTransportConnection& aTransportConnection);

    void ConnectionOpenedL(MMTPTransportConnection& aTransportConnection);

    TBool DeleteConnection(TUint aConnectionId);

    TUid ClientSId();

private:

    CMTPConnectionMgr();

    TInt ConnectionFind(TUint aConnectionId) const;

    static TInt ConnectionOrderCompare(const CMTPConnection& aFirst, const CMTPConnection& aSecond);

    void SuspendTransportL( TUid aTransport );

    void UnsuspendTransport( TUid aTransport );

    void ResumeSuspendedTransport();

    static TInt DoResumeSuspendedTransport( TAny* aSelf );

private:

    RPointerArray<CMTPConnection>   iConnections;

    TLinearOrder<CMTPConnection>    iConnectionOrder;

    TInt                            iShutdownConnectionIdx;

    CMTPTransportPlugin*            iTransport;

    TUid                            iTransportUid;

    TUint							iTransportCount;

    TUid 							iSecureId;

    /**

     * Array storing the UIDs of the suspended transport plugins

     */

    RArray< TUid >                  iSuspendedTransports;

    /**

     * Active object which starts suspended transport asynchronously

     */

    CAsyncCallBack*                 iTransportTrigger;

    /**

    FLOGGER debug trace member variable.

    */

    __FLOG_DECLARATION_MEMBER_MUTABLE;

    };

#endif // CMTPCONNECTIONMGR_H