1 // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #ifndef __SYSMONMONITOR_H__

    17 #define __SYSMONMONITOR_H__

    18 

    19 #include <e32std.h>

    20 #include <e32base.h>

    21 #include <startup.hrh>

    22 

    23 #include "logoncallback.h"

    24 #include "logonbackofftimer.h"

    25 

    26 class CSysMonServer;

    27 class CStartupProperties;

    28 class CLogonBackoffTimer;

    29 class CMonitor;

    30 

    31 /**

    32 Utility class used for decrementing the re-launch attempts after interval defined by 

    33 KIntervalForReLaunchRateOfFailure

    34 */	

    35 NONSHARABLE_CLASS(CRelaunchIntervalTimer) : public CTimer

    36 	{

    37 public:

    38 	static CRelaunchIntervalTimer* NewL(CMonitor& aMonitor);

    39 	void Start();

    40 	~CRelaunchIntervalTimer();

    41 

    42 private:

    43 	CRelaunchIntervalTimer(CMonitor& aMonitor);

    44 	void ConstructL();

    45 

    46 private: // from CActive

    47 	void RunL();

    48 

    49 private:

    50 	CMonitor* iMonitor;

    51 	};

    52 

    53 /** 

    54 This class is responsible for monitoring a single process.

    55 @file

    56 @internalComponent

    57 @released

    58 */

    59 class CMonitor:public CActive, public MLogonCallback

    60 	{

    61 public:

    62 	static CMonitor* NewL(CSysMonServer& aServer, const TProcessId& aId, CStartupProperties* aStartupProperties, TBool aExecuteRecoveryMethodOnFailure);

    63 	void Start();

    64 	TProcessId ProcessId() const;

    65 	~CMonitor();

    66 	void DecrementRelaunchAttempts();

    67 

    68 public:

    69 	// From MLogonCallback

    70 	TInt DoProcessLogon();

    71 	void ActivateSelf();

    72 	

    73 protected:

    74 	static TInt Callback(TAny* aParent);

    75 	void RestartProcessL();

    76 	void RunL();

    77 	void DoCancel();

    78 	TInt RunError(TInt aError);

    79 	void CancelMonitor();

    80 

    81 protected:

    82 	CMonitor(CSysMonServer& aServer, const TProcessId& aId);	

    83 	void ConstructL(CStartupProperties* aStartupProperties, TBool aExecuteRecoveryMethodOnFailure);

    84 

    85 public : 

    86     static const TInt iOffset;

    87 

    88 private:

    89 	void FailureRecoveryPolicy();

    90 	TBool HasExceededRateOfFailurePolicy();

    91 #ifdef	SYMBIAN_SSM_GRACEFUL_SHUTDOWN

    92 	void RestartSysDll(TBool aUseStartupMode, TInt aStartupMode = 0);

    93 #endif	//SYMBIAN_SSM_GRACEFUL_SHUTDOWN

    94 private:

    95 	CSysMonServer& iSysMonServer;		

    96 	TProcessId iProcessId;	

    97 	RProcess iProcess;

    98 	TTime iLoadTime;

    99 	CStartupProperties* iStartupProperties;	

   100 	TSglQueLink iSglQueLink;

   101 	CLogonBackoffTimer* iLogonBackoffTimer;

   102 	TInt iReLaunchAttempts;	// Persistant count of the number of re-launch attempts.

   103 	CRelaunchIntervalTimer* iReLaunchIntervalTimer;	// Timer used for decrementing the re-launch attempts after interval defined by KIntervalForReLaunchRateOfFailure

   104 #ifdef	SYMBIAN_SSM_GRACEFUL_SHUTDOWN

   105 	RLibrary iRestartSysLib;

   106 	TBool iRestartSysLoaded;

   107 #endif	//SYMBIAN_SSM_GRACEFUL_SHUTDOWN

   108 	};

   109 

   110 #endif