1 /*

     2 * Copyright (c) 2007-2009 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 

    18 #ifndef __SNTPCLIENTENGINE_H__

    19 #define __SNTPCLIENTENGINE_H__

    20 

    21 #include <e32base.h>

    22 #include <es_sock.h>

    23 #include <in_sock.h>

    24 

    25 #include "commandlineargs.h"

    26 

    27 enum TSNTPClientState {

    28 	EStateIdle = 0,

    29 	EStateResolve,

    30 	EStateWrite,

    31 	EStateRead,

    32 	EStateComplete,

    33 	EStateFailed,

    34 	EStateAborted

    35 	};

    36 

    37 class MTimeOutNotify

    38 	{

    39 public:

    40 	virtual void TimerExpired() = 0;

    41 	};

    42 	

    43 // timeout handler

    44 

    45 class CTimeOutTimer: public CTimer

    46 	{

    47 public:

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

    49 	~CTimeOutTimer();

    50 

    51 protected:

    52     CTimeOutTimer(const TInt aPriority);

    53 	void ConstructL(MTimeOutNotify& aTimeOutNotify);

    54     virtual void RunL();

    55 

    56 private:

    57 	MTimeOutNotify* iNotify;

    58 	};

    59 	

    60 // The main client engine

    61 	

    62 class CSNTPClient : public CActive, public MTimeOutNotify

    63 	{

    64 

    65 public:

    66 	static CSNTPClient* NewL(TCommandLineArgs& aArgs);

    67 	static CSNTPClient* NewLC(TCommandLineArgs& aArgs);

    68 	

    69 	TSNTPClientState State();

    70 	void Start();

    71 	

    72 	~CSNTPClient();

    73 	

    74 private:

    75 	CSNTPClient(TCommandLineArgs& aArgs);

    76 

    77 	void ConstructL();

    78 	

    79 	/* CActive methods */

    80 	void RunL();

    81 	void DoCancel();

    82 	TInt RunError(TInt aError);

    83 	

    84 	/* MTimeOutNotify methods */

    85 	void TimerExpired();

    86 	

    87 	void SetTimeL(); 

    88 	

    89 private:

    90 	RSocketServ	iSockServ;

    91 	RSocket iSock;

    92 	RHostResolver iResolver;

    93 

    94 	TCommandLineArgs& iArgs;

    95 	TSNTPClientState iState;

    96 	TNameEntry iNameEntry;

    97 	

    98 	CTimeOutTimer* iTimer;

    99 	

   100 	// An NTP packet is exactly 48 bytes

   101 	TBuf8<48> iBuffer;

   102 	

   103 	TInt iServerIndex;

   104 	};

   105 

   106 

   107 

   108 #endif /* _SNTPCLIENTENGINE_H__ */