mpx/commonframework/common/src/mpxmessagemonitor.cpp
changeset 0 a2952bb97e68
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mpx/commonframework/common/src/mpxmessagemonitor.cpp	Thu Dec 17 08:55:47 2009 +0200
@@ -0,0 +1,152 @@
+/*
+* Copyright (c) 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:  Inline implementation of message monitor
+*
+*/
+
+#include <mpxlog.h>
+#include "mpxsession.h"
+#include "mpxmessagemonitor.h"
+
+const TInt KMPXGetNextMessage=0;
+const TInt KMPXCancelGetNextMessage=1;
+
+// ============================== MEMBER FUNCTIONS ============================
+// ----------------------------------------------------------------------------
+// Two phases constructor
+// ----------------------------------------------------------------------------
+// 
+EXPORT_C CMPXMessageMonitor* CMPXMessageMonitor::NewL(
+    const RMPXSession& aSession,
+    MMPXMessageObserver& aObserver)
+    {
+    CMPXMessageMonitor* self = new(ELeave)CMPXMessageMonitor(aSession, aObserver);
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop(self);
+    return self;
+    }
+
+// ----------------------------------------------------------------------------
+// Destructor
+// ----------------------------------------------------------------------------
+//    
+EXPORT_C CMPXMessageMonitor::~CMPXMessageMonitor() 
+    {
+    MPX_FUNC_EX("CMPXMessageMonitor::~CMPXMessageMonitor");
+    Cancel();
+    }
+
+// ----------------------------------------------------------------------------
+// C++ constructor
+// ----------------------------------------------------------------------------
+//    
+CMPXMessageMonitor::CMPXMessageMonitor(
+    const RMPXSession& aSession,
+    MMPXMessageObserver& aObserver)
+:   CActive(EPriorityHigh),
+    iSession(aSession),
+    iObserver(aObserver)
+    {
+    CActiveScheduler::Add(this);
+    }
+
+
+// ----------------------------------------------------------------------------
+// 2nd phase construction: 
+// ----------------------------------------------------------------------------
+//    
+void CMPXMessageMonitor::ConstructL()
+    {
+    MPX_FUNC_EX("CMPXMessageMonitor::ConstructL");
+    GetNextMessage();
+    }
+
+// ----------------------------------------------------------------------------
+// Start to monitor messages
+//
+// ----------------------------------------------------------------------------
+//    
+EXPORT_C void CMPXMessageMonitor::GetNextMessage()
+    {
+    MPX_FUNC_EX("CMPXMessageMonitor::GetNextMessage");
+    if (!IsActive())
+        {
+        MPX_DEBUG1("CMPXMessageMonitor::GetNextMessage send request");
+        iSession.SendReceive(KMPXGetNextMessage, 
+                             TIpcArgs(&iMsgDataPkg, &iErrorPkg),
+                             iStatus);
+        SetActive();
+        }
+    }
+ 
+// ----------------------------------------------------------------------------
+// From CActive: a new message must have arrived so retrieve it and pass back
+// to observer, then wait for next message
+// ----------------------------------------------------------------------------
+//    
+EXPORT_C void CMPXMessageMonitor::RunL()
+    {
+    MPX_FUNC_EX("CMPXMessageMonitor::RunL");
+    
+    // Try again in case server is down for IAD
+    if (iStatus == KErrDied || iStatus == KErrServerTerminated)
+        {
+        MPX_DEBUG1("-->CMPXMessageMonitor::RunL Reconnecting session for IAD");
+        
+        // attempt to bring the server back up
+        if (iSession.Reconnect() != KErrNone)
+            {            
+            MPX_DEBUG1("-->CMPXMessageMonitor::RunL Reconnect Failed");
+            
+            User::LeaveIfError(iStatus.Int());
+            }
+        }
+    else
+        {
+        User::LeaveIfError(iStatus.Int());
+        iObserver.MessageReceived(iMsgDataPkg(), iErrorPkg());
+        }
+    }
+
+// ----------------------------------------------------------------------------
+// From CActive: no more messages are required 
+// ----------------------------------------------------------------------------
+//     
+EXPORT_C void CMPXMessageMonitor::DoCancel()
+    {
+    MPX_FUNC_EX("CMPXMessageMonitor::DoCancel");
+    if (IsActive())
+        {
+        TRAP_IGNORE(iSession.SendReceiveL(KMPXCancelGetNextMessage));
+        }
+    }
+
+// ----------------------------------------------------------------------------
+// Handle leave in the RunL() 
+// ----------------------------------------------------------------------------
+//     
+EXPORT_C TInt CMPXMessageMonitor::RunError(TInt aError)
+    {
+    MPX_DEBUG3("-->CMPXMessageMonitor::RunError 0x%08x, error %d", this, aError);
+    if (KErrCancel!=aError && KErrServerTerminated!=aError)
+        {
+        GetNextMessage();
+        }
+    MPX_DEBUG3("<--CMPXMessageMonitor::RunError 0x%08x, error %d", this, aError);
+    return KErrNone;
+    }
+
+// End of file
+