--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbengines/usbdevcon/src/crequestshandler.cpp	Thu Dec 17 09:14:30 2009 +0200
@@ -0,0 +1,133 @@
+/*
+* 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:  Requests handler
+*
+*/
+
+
+
+#include <ecom/ecom.h>
+#include <cusbdevicecontrolplugin.h>
+
+#include "cusbdevcon.h"
+#include "crequestshandler.h"
+#include "debug.h"
+
+// ---------------------------------------------------------------------------
+// Two-phase construction
+// ---------------------------------------------------------------------------
+//
+CRequestsHandler* CRequestsHandler::NewL(RDevUsbcClient& aLdd,
+                                         RUsbWatcher& aUsbWatcher,
+                                         RUsb& aUsbManager)
+    {
+    
+    FLOG( _L( "[USBDEVCON]\tCRequestsHandler::NewL" ) );
+
+    CRequestsHandler* self = new (ELeave) CRequestsHandler(aLdd, aUsbWatcher, aUsbManager);
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop(self);
+    return self;    
+    }
+    
+// -------------------------------------Handle--------------------------------------
+// Two-phase construction
+// ---------------------------------------------------------------------------
+//  
+void CRequestsHandler::ConstructL()
+    {
+    
+    FLOG( _L( "[USBDEVCON]\tCRequestsHandler::ConstructL" ) );
+    
+    // read, construct and attach handlers
+    
+    RImplInfoPtrArray implementations;
+    const TEComResolverParams noResolverParams;
+    REComSession::ListImplementationsL(KUsbCMHandlerInterface, noResolverParams, KRomOnlyResolverUid, implementations);
+    
+    for (TUint i(0); i < implementations.Count(); ++i)
+        {
+        TUid uid(implementations[i]->ImplementationUid());
+        CUsbCMHandler* handler = (reinterpret_cast<CUsbCMHandler*>(REComSession::CreateImplementationL
+                                                                                                    (uid, _FOFF(CUsbCMHandler, iPrivateEComUID))));
+        iHandlers.Append(handler);
+        }
+       
+   implementations.Close(); // cleanup
+        
+   FTRACE(FPrint(
+           _L("[USBDEVCON]\tCRequestsHandler::ConstructL: Amount of handlers attached = %d" ), iHandlers.Count()));
+
+    // initialize handlers, pass them iLdd, iUsbWatcher, iUsbManager
+    for(TInt i(0); i < iHandlers.Count(); ++i)
+        {
+        iHandlers[i]->Initialize(iLdd, iUsbWatcher, iUsbManager);
+        }
+    }
+    
+// ---------------------------------------------------------------------------
+// Default construction
+// ---------------------------------------------------------------------------
+//
+CRequestsHandler::CRequestsHandler( RDevUsbcClient& aLdd, 
+                                    RUsbWatcher& aUsbWatcher,
+                                    RUsb& aUsbManager) : 
+                            iLdd (aLdd),
+                            iUsbWatcher(aUsbWatcher),
+                            iUsbManager(aUsbManager)
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// Destruction
+// ---------------------------------------------------------------------------
+//
+CRequestsHandler::~CRequestsHandler()
+    {
+
+    FLOG( _L( "[USBDEVCON]\tCRequestsHandler::~CRequestsHandler()" ) );
+    // destroy handlers  
+    iHandlers.ResetAndDestroy();
+    
+    REComSession::FinalClose(); // plug-ins final cleanup
+    
+    }   
+
+
+// ---------------------------------------------------------------------------
+// Search plugin which can handle the request
+// ---------------------------------------------------------------------------
+//
+TInt CRequestsHandler::Handle(const RBuf8& aSetupPacket, RBuf8& aData)
+    {
+    
+    FLOG( _L( "[USBDEVCON]\tCRequestsHandler::Handle" ) );
+    
+    TInt err(KErrNotSupported);
+    TUint counter(0); // handlers counter
+    
+    // loop through handlers, call handle() while error == KErrNotSupported
+    while((err == KErrNotSupported) && (counter < iHandlers.Count()))               
+        {
+        err = iHandlers[counter]->Handle(aSetupPacket, aData);
+        ++counter;
+        }
+        
+    return err;
+    
+    }
+    
+
+