--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/remotestoragefw/remotefileengine/inc/rsfwlockmanager.h	Thu Dec 17 09:07:59 2009 +0200
@@ -0,0 +1,91 @@
+/*
+* Copyright (c) 2004-2006 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:  Lock manager for locked remote files
+*
+*/
+
+
+#ifndef C_RSFWLOCKMANAGER_H
+#define C_RSFWLOCKMANAGER_H
+
+#include <e32base.h>
+
+#include "rsfwrfesession.h"
+#include "rsfwremoteaccess.h"
+
+class CRsfwFileEntry;
+class CRsfwRfeStateMachine;
+
+/** lock timeout in seconds */
+const TInt KDefaultLockTimeout              = 900;  
+
+/** KDefaultLockTimeout is the lock timeout requested from the server
+ Our lock timer is set to value KDefaultLockTimeout / KLockRefreshAdjustment.
+ It must be smaller, as it is started only when we receive the reply
+ from the server, and when it expires we still must have time to sent the
+ refresh request */
+const TInt KLockRefreshAdjustment           = 3;
+
+/** If lock refresh attempt results in an error from the protocol stack
+ we use timeout mechanism to try again, but with a small timeout
+ as we are not even sending packets to the server. */
+const TInt KMinLockRefreshAttempt           = 5;
+
+/**
+ *  Pending lock renewal requests
+ *
+ *  @lib remotefe.exe
+ *  @since Series 60 3.1
+ */
+class TPendingLockRefreshContext
+    {
+public: 
+    // Lock refresh request transaction Id
+    TUint                         iId;
+    // Pointer to the file entry waiting for this refresh 
+    CRsfwFileEntry*                   iFileEntry;
+    };
+
+class CRsfwLockManager: public CBase, public MRsfwRemoteAccessResponseHandler
+    {
+public:
+    static CRsfwLockManager* NewL(CRsfwRemoteAccess* aRemoteAccess);
+    static CRsfwLockManager* NewLC(CRsfwRemoteAccess* aRemoteAccess);
+    ~CRsfwLockManager();
+
+    void HandleRemoteAccessResponse(TUint aId, TInt aStatus);
+    void ObtainLockL(CRsfwFileEntry*
+                     aFileEntry,
+                     TUint aLockFlags,
+                     TDesC8*& aLockToken,
+                     CRsfwRfeStateMachine* aOperation);
+    void ReleaseLockL(CRsfwFileEntry* aFileEntry, CRsfwRfeStateMachine* aOperation);
+    void RefreshLockL(CRsfwFileEntry* aFileEntry);
+    TInt LockedCount();
+    void AddLockedEntryL(CRsfwFileEntry* aEntry);
+    void RemoveLockedEntry(CRsfwFileEntry* aEntry);
+    void PopulateExternalLockTokenCacheL(CRsfwFileEntry* aRoot);
+    
+private:
+    void ConstructL(CRsfwRemoteAccess*) ;
+
+private:
+    CRsfwRemoteAccess* iRemoteAccess;    // remote file transport module
+    RArray<TPendingLockRefreshContext>  iLockRefreshContexts;
+    RPointerArray<CRsfwFileEntry> iLockedEntries;
+    };
+
+#endif // LOCKMANAGER_H
+
+// End of File