--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tracesrv/tracecore/btrace_handler/src/TraceCoreRouter.cpp	Fri Oct 08 14:56:39 2010 +0300
@@ -0,0 +1,179 @@
+// Copyright (c) 2007-2010 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:
+// Trace Core
+// 
+#include <kern_priv.h>
+#include "TraceCoreRouter.h"
+#include "TraceCoreSubscriber.h"
+#include "TraceCoreDebug.h"
+#include "OstTraceDefinitions.h"
+
+#ifdef OST_TRACE_COMPILER_IN_USE
+#include "TraceCoreRouterTraces.h"
+#endif
+
+// Constants
+
+/** 
+ * Constructor
+ */
+DTraceCoreRouter::DTraceCoreRouter()
+: iMessageSender( NULL )
+    {
+    }
+
+
+/** 
+ * Destructor
+ */
+DTraceCoreRouter::~DTraceCoreRouter()
+    {
+    Kern::MutexWait(*iLock);
+    iRoutingItems.Reset();
+    Kern::MutexSignal(*iLock);
+    iLock->Close(NULL);
+    }
+
+
+/**
+ * Initializes this router
+ *
+ * @param aMessageSender The message sender interface
+ */
+TInt DTraceCoreRouter::Init( MTraceCoreMessageSender& aMessageSender )
+    {
+    iMessageSender = &aMessageSender;
+    _LIT(KTraceCoreRouterLock, "DTraceCoreRouter_Lock");
+    TInt err = Kern::MutexCreate(iLock, KTraceCoreRouterLock, KMutexOrdGeneral0);
+    return err;
+    }
+
+
+/**
+ * Callback for incoming messages
+ *
+ * @param aMsg The message
+ * @return KErrNotFound if the message id was not found (not subscribed), KErrNone if found
+ */
+TInt DTraceCoreRouter::MessageReceived( TTraceMessage &aMsg )
+    {
+    OstTraceExt1( TRACE_FLOW, DTRACECOREROUTER_MESSAGERECEIVED_ENTRY, "> DTraceCoreRouter::MessageReceived. MsgId:0x%hhx", aMsg.iMessageId );
+   
+    TInt ret( KErrNotFound );
+    TUint32 messageId = aMsg.iMessageId;
+    TUint32 msgFormat = aMsg.iMsgFormat;
+    
+    Kern::MutexWait(*iLock);
+    for ( TInt i = 0; i < iRoutingItems.Count(); i++ )
+        {
+        if ( iRoutingItems[ i ].iMessageID == messageId && iRoutingItems[ i ].iMsgFormat == msgFormat )
+            {
+            iRoutingItems[ i ].iSubscriber->MessageReceived( aMsg );
+            ret = KErrNone;
+            }
+        }
+    Kern::MutexSignal(*iLock);
+        
+	OstTrace1( TRACE_FLOW, DTRACECOREROUTER_MESSAGERECEIVED_EXIT, "< DTraceCoreRouter::MessageReceived. Ret:%d", ret );
+	return ret;
+	}
+
+
+/**
+ * Subscribes to a message
+ * 
+ * @param aRoutingItem The subscription properties.
+ */
+TInt DTraceCoreRouter::Subscribe( TRoutingItem& aRoutingItem )
+    {
+    OstTrace1( TRACE_FLOW, DTRACECOREROUTER_SUBSCRIBE_ENTRY, "> DTraceCoreRouter::Subscribe 0x%x", ( TUint )&( aRoutingItem ) );
+    
+    TInt err = KErrNone;
+    if ( iMessageSender != NULL ) 
+        {
+        if ( aRoutingItem.iSubscriber != NULL )
+            {
+            Kern::MutexWait(*iLock);
+            // Add to routingItems array
+            err = iRoutingItems.Append( aRoutingItem );
+            Kern::MutexSignal(*iLock);
+            if ( err == KErrNone )                
+                {
+                // Set message sender to routing item
+                aRoutingItem.iSubscriber->SetMessageSender( *iMessageSender );
+                OstTraceExt2( TRACE_NORMAL, DTRACECOREROUTER_SUBSCRIBE_SUBSCRIBED_TO_MESSAGE, "DTraceCoreRouter::Subscribe - Subscribed to message. Subscriber:0x%x MsgId:0x%x", (TUint)aRoutingItem.iSubscriber, (TUint)aRoutingItem.iMessageID );
+                }
+            }
+        // Subscriber was NULL
+        else
+            {         
+            err = KErrArgument;
+            }
+        }
+    // Message sender not set
+    else
+        {
+        err = KErrGeneral;
+        }                                    
+    OstTrace1( TRACE_FLOW, DTRACECOREROUTER_SUBSCRIBE_EXIT, "< DTraceCoreRouter::Subscribe. Err:%d", err );
+    return err;
+    }
+
+
+/**
+ * Unsubscribes from a message
+ * 
+ * @param aRoutingItem The subscription properties
+ */
+void DTraceCoreRouter::Unsubscribe( TRoutingItem& aRoutingItem )
+    {
+    // Make sure not to delete item while going through items somewhere else
+    Kern::MutexWait(*iLock);
+	for ( TInt i = 0; i < iRoutingItems.Count(); i++ )
+	    {
+	    if ( iRoutingItems[ i ].iMessageID == aRoutingItem.iMessageID
+	            && iRoutingItems[ i ].iSubscriber == aRoutingItem.iSubscriber )
+	        {
+	        OstTraceExt2( TRACE_NORMAL, DTRACECOREROUTER_UNSUBSCRIBE_UNSUBSCRIBED, "DTraceCoreRouter::Unsubscribe - Unsubscribed 0x%x MsgID:0x%x", (TUint)aRoutingItem.iSubscriber, (TUint)aRoutingItem.iMessageID );
+	        iRoutingItems.Remove( i );
+	        i--;
+	        }
+	    }
+	Kern::MutexSignal(*iLock); 
+    }
+
+
+/**
+ * Unsubscribes from all messages of given subscriber
+ * 
+ * @param aSubscriber The subscriber to be unregistered
+ */
+void DTraceCoreRouter::Unsubscribe( DTraceCoreSubscriber& aSubscriber )
+    {
+    OstTrace1( TRACE_FLOW, DTRACECOREROUTER_UNSUBSCRIBEALL_ENTRY, "> DTraceCoreRouter::UnsubscribeAll 0x%x", ( TUint )&( aSubscriber ) );
+    
+    Kern::MutexWait(*iLock);
+	for ( TInt i = 0; i < iRoutingItems.Count(); i++ )
+	    {
+	    if ( iRoutingItems[ i ].iSubscriber == &aSubscriber )
+	        {
+	        OstTraceExt2( TRACE_NORMAL, DTRACECOREROUTER_UNSUBSCRIBEALL_UNSUBSCRIBED, "DTraceCoreRouter::UnsubscribeAll - Unsubscribed 0x%x MsgID:%d", (TUint)&aSubscriber, (TInt)iRoutingItems[ i ].iMessageID );
+	        iRoutingItems.Remove( i );
+	        i--;
+	        }
+	    }
+	Kern::MutexSignal(*iLock);
+    }
+
+// End of File