loggingservices/eventlogger/LogServ/inc/LogServBackupManager.h
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     1 // Copyright (c) 2002-2009 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 __LOGBACKUP_H__
       
    17 #define __LOGBACKUP_H__
       
    18 
       
    19 #include <babackup.h>
       
    20 #include "LogServBackupInterface.h"
       
    21 #include "LogServBackupObserver.h"
       
    22 
       
    23 
       
    24 /////////////////////////////////////////////////////////////////////////////////////////
       
    25 // -----> CLogServBackupManagerManager (header)
       
    26 /////////////////////////////////////////////////////////////////////////////////////////
       
    27 /**
       
    28 @internalComponent
       
    29 */
       
    30 class CLogServBackupManager : public CTimer, public MBackupObserver, public MLogServBackupInterface
       
    31 	{
       
    32 public:
       
    33 	static CLogServBackupManager* NewL(TInt aPriority = CActive::EPriorityStandard);
       
    34 	~CLogServBackupManager();
       
    35 
       
    36 private:
       
    37 	CLogServBackupManager(TInt aPriority);
       
    38 	void ConstructL();
       
    39 
       
    40 public: // From MLogServBackupInterface
       
    41 	void BIObserverAddL(MLogServBackupObserver& aObserver, TLogServBackupPriority aPriority);
       
    42 	void BIObserverRemove(MLogServBackupObserver& aObserver);
       
    43 	//
       
    44 	TLogServBackupState BIState() const;
       
    45 	TInt BIErrorValueForCurrentState() const;
       
    46 	//
       
    47 	void BISetDatabaseNameL(const TDesC& aDatabaseName);
       
    48 
       
    49 private: // From CActive
       
    50 	void RunL();
       
    51 	TInt RunError(TInt aError);
       
    52 
       
    53 private: // Internal structs
       
    54 	struct TLogBackupNotificationEntry
       
    55 		{
       
    56 	public:
       
    57 		inline TLogBackupNotificationEntry(MLogServBackupObserver& aObserver, TLogServBackupPriority aPriority) : iObserver(aObserver), iPriority(aPriority) { };
       
    58 
       
    59 	public:
       
    60 		MLogServBackupObserver& iObserver;
       
    61 		TLogServBackupPriority iPriority;
       
    62 		};
       
    63 
       
    64 private:
       
    65 	TInt NotifyObservers(MLogServBackupObserver::TLogServBackupEvent aEvent);
       
    66 	void ChangeFileLockL(const TDesC& aFileName,TFileLockFlags aFlags);
       
    67 	CBaBackupSessionWrapper* CreateBackupL(const TDesC& aLogDatabaseFileName);
       
    68 	static TInt CompareEntries(const TLogBackupNotificationEntry& aLeft, const TLogBackupNotificationEntry& aRight);
       
    69 
       
    70 private:
       
    71 	/**
       
    72 	 * So we can check we only act upon the correct backup event... essentially
       
    73 	 * we are not trusting the backup server to do the right thing.
       
    74 	 */
       
    75 	HBufC* iDatabaseName;
       
    76 	
       
    77 	/**
       
    78 	 * Interface to the backup server
       
    79 	 */
       
    80 	CBaBackupSessionWrapper* iBackup;
       
    81 
       
    82 	/**
       
    83 	 * Current state
       
    84 	 */
       
    85 	TLogServBackupState iState;
       
    86 
       
    87 	/**
       
    88 	 * Backup notification queue
       
    89 	 */
       
    90 	RArray<TLogBackupNotificationEntry> iObservers;
       
    91 	};
       
    92 
       
    93 
       
    94 #endif