--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mpx/commonframework/common/src/mpxsessionretry.cpp	Thu Dec 17 08:55:47 2009 +0200
@@ -0,0 +1,164 @@
+/*
+* Copyright (c) 2007 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:  Client session retry implementation
+*
+*/
+
+#include "mpxsessionretry.h"
+
+
+enum { EFunctionType_SendReceive1, EFunctionType_SendReceive2};
+
+// ============================== LOCAL FUNCTIONS =============================
+
+// ----------------------------------------------------------------------------
+// Start server process
+// ----------------------------------------------------------------------------
+//
+LOCAL_C TInt StartServer(const TDesC& aImage)
+    {
+    RProcess server;
+    
+    TInt r = server.Create(aImage,KNullDesC);
+    if (r != KErrNone)
+        {
+        return r;
+        }
+    
+    TRequestStatus s;
+    server.Rendezvous(s);
+    if (s != KRequestPending)
+        {
+        server.Kill(0);
+        }
+    else
+        {
+        server.Resume();
+        }
+    
+    User::WaitForRequest(s);    
+    
+    r = (server.ExitType()==EExitPanic) ? KErrGeneral : s.Int();
+    server.Close();
+    
+    return r;
+    }
+
+// ============================== MEMBER FUNCTIONS ============================
+
+// ----------------------------------------------------------------------------
+// Return the version info
+// ----------------------------------------------------------------------------
+//
+TVersion RMPXSessionRetry::Version() const
+    { 
+    return iVersion;
+    }
+
+// ----------------------------------------------------------------------------
+// Connect to server
+// ----------------------------------------------------------------------------
+//
+TInt RMPXSessionRetry::Connect(const TDesC& aServer, 
+                               const TDesC& aImage, 
+                               const TVersion& aVersion)
+    {
+    iVersion = aVersion;
+    iServer = aServer;
+    iImage = aImage;
+        
+    TInt r = RSessionBase::CreateSession(iServer, iVersion, 2);
+    
+    if (r == KErrNotFound || r == KErrServerTerminated)
+        {
+        r = Reconnect();
+        }
+
+    return r;
+    }
+
+// ----------------------------------------------------------------------------
+// Reconnect to server
+// ----------------------------------------------------------------------------
+//
+TInt RMPXSessionRetry::Reconnect()
+    {
+    // make sure the current session is closed; it does no harm to close
+    // a session that is already closed
+    Close();
+    
+    TInt r = StartServer(iImage);
+        
+    if (r == KErrNone || r == KErrAlreadyExists)
+        {
+        r = RSessionBase::CreateSession(iServer, iVersion, 2);
+        }
+    
+    return r;
+    }
+
+// -----------------------------------------------------------------------------
+// Send a message
+// -----------------------------------------------------------------------------
+//
+TInt RMPXSessionRetry::SendReceiveL(TInt aFunction)
+    {
+    TInt retVal = RSessionBase::SendReceive(aFunction);
+    
+    if (KErrServerTerminated == retVal) 
+        {        
+        Reconnect(); // try again in case IAD took down the server to replace it
+        retVal = RSessionBase::SendReceive(aFunction);
+        }
+    
+    return User::LeaveIfError(retVal);
+    }
+
+// -----------------------------------------------------------------------------
+// Send a message
+// -----------------------------------------------------------------------------
+//
+TInt RMPXSessionRetry::SendReceiveL(TInt aFunction, const TIpcArgs& aArgs)
+    {
+    TInt retVal = RSessionBase::SendReceive(aFunction,aArgs);
+    
+    if (KErrServerTerminated == retVal) 
+        {
+        Reconnect(); // try again in case IAD took down the server to replace it
+        retVal = RSessionBase::SendReceive(aFunction,aArgs);
+        }    
+    
+    return User::LeaveIfError(retVal);
+    }
+
+// -----------------------------------------------------------------------------
+// Send a message
+// -----------------------------------------------------------------------------
+//
+void RMPXSessionRetry::SendReceive(TInt aFunction, 
+                                   TRequestStatus& aStatus)
+    {
+    RSessionBase::SendReceive(aFunction, aStatus);
+    }
+
+// -----------------------------------------------------------------------------
+// Send a message
+// -----------------------------------------------------------------------------
+//
+void RMPXSessionRetry::SendReceive(TInt aFunction, 
+                                   const TIpcArgs& aArgs,
+                                   TRequestStatus& aStatus)
+    {
+    RSessionBase::SendReceive(aFunction, aArgs, aStatus);
+    }