1 /*

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

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 #ifndef __SNTPCLIENTENGINE_H__

    18 #define __SNTPCLIENTENGINE_H__

    19 

    20 #include <e32base.h>

    21 #include <es_sock.h>

    22 #include <in_sock.h>

    23 

    24 #include "commandlineargs.h"

    25 

    26 enum TSNTPClientState {

    27 	EStateIdle = 0,

    28 	EStateResolve,

    29 	EStateWrite,

    30 	EStateRead,

    31 	EStateComplete,

    32 	EStateFailed,

    33 	EStateAborted

    34 	};

    35 

    36 class MTimeOutNotify

    37 	{

    38 public:

    39 	virtual void TimerExpired() = 0;

    40 	};

    41 	

    42 // timeout handler

    43 

    44 class CTimeOutTimer: public CTimer

    45 	{

    46 public:

    47 	static CTimeOutTimer* NewL(const TInt aPriority, MTimeOutNotify& aTimeOutNotify);

    48 	~CTimeOutTimer();

    49 

    50 protected:

    51     CTimeOutTimer(const TInt aPriority);

    52 	void ConstructL(MTimeOutNotify& aTimeOutNotify);

    53     virtual void RunL();

    54 

    55 private:

    56 	MTimeOutNotify* iNotify;

    57 	};

    58 	

    59 // The main client engine

    60 	

    61 class CSNTPClient : public CActive, public MTimeOutNotify

    62 	{

    63 

    64 public:

    65 	static CSNTPClient* NewL(TCommandLineArgs& aArgs);

    66 	static CSNTPClient* NewLC(TCommandLineArgs& aArgs);

    67 	

    68 	TSNTPClientState State();

    69 	void Start();

    70 	

    71 	~CSNTPClient();

    72 	

    73 private:

    74 	CSNTPClient(TCommandLineArgs& aArgs);

    75 

    76 	void ConstructL();

    77 	

    78 	/* CActive methods */

    79 	void RunL();

    80 	void DoCancel();

    81 	TInt RunError(TInt aError);

    82 	

    83 	/* MTimeOutNotify methods */

    84 	void TimerExpired();

    85 	

    86 	void SetTimeL(); 

    87 	

    88 private:

    89 	RSocketServ	iSockServ;

    90 	RSocket iSock;

    91 	RHostResolver iResolver;

    92 

    93 	TCommandLineArgs& iArgs;

    94 	TSNTPClientState iState;

    95 	TNameEntry iNameEntry;

    96 	

    97 	CTimeOutTimer* iTimer;

    98 	

    99 	// An NTP packet is exactly 48 bytes

   100 	TBuf8<48> iBuffer;

   101 	

   102 	TInt iServerIndex;

   103 	};

   104 

   105 

   106 

   107 #endif /* _SNTPCLIENTENGINE_H__ */