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// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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/**
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@file
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@internalTechnology
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*/
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#include <e32base.h>
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#include <e32base_private.h>
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#include <e32property.h>
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#include "msctypes.h"
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#include "mscutils.h"
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#include "shared.h"
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#include "msgservice.h"
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#include "cusbhostmslogicalunit.h"
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#include "cusbhostmsdevice.h"
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#include "cusbhostmsserver.h"
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#include "usbmshostpanic.h"
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#include "cusbhostmsdevicethread.h"
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#include "cusbhostmssession.h"
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#include "msdebug.h"
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#include "debug.h"
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/** Construct a Symbian OS session object.
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param aServer Service the session will be a member of
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param aMessage The message from the client.
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return A new CUsbHostMsSession object
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*/
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CUsbHostMsSession* CUsbHostMsSession::NewL(CUsbHostMsServer& aServer)
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{
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__MSFNSLOG
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CUsbHostMsSession* r = new (ELeave) CUsbHostMsSession(aServer);
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CleanupStack::PushL(r);
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r->ConstructL();
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CleanupStack::Pop();
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return r;
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}
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/**
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Constructor.
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param aServer Service the session will be a member of
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*/
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CUsbHostMsSession::CUsbHostMsSession(CUsbHostMsServer& aServer)
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: iUsbHostMsServer(aServer)
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{
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__MSFNLOG
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iMsgCount = 0;
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}
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/**
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2nd Phase Construction.
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*/
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void CUsbHostMsSession::ConstructL()
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{
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__MSFNLOG
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iUsbHostMsServer.IncrementSessionCount();
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__HOSTPRINT1(_L("\tiSessionCount: %d\n"), iUsbHostMsServer.SessionCount());
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}
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/**
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Destructor.
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*/
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CUsbHostMsSession::~CUsbHostMsSession()
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{
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__MSFNLOG
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iUsbHostMsServer.DecrementSessionCount();
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iThread.Close();
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__HOSTPRINT1(_L("\tClosed a session -> iSessionCount: %d\n"), iUsbHostMsServer.SessionCount());
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}
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/**
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Called when a message is received from the client.
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param aMessage Message received from the client
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*/
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void CUsbHostMsSession::ServiceL(const RMessage2& aMessage)
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{
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__MSFNLOG
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DispatchMessageL(aMessage);
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}
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/**
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Handles the request (in the form of a message) received from the client
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param aMessage The received message
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*/
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void CUsbHostMsSession::DispatchMessageL(const RMessage2& aMessage)
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{
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__MSFNLOG
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TInt r = KErrNone;
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switch (aMessage.Function())
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{
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case EUsbHostMsRegisterInterface:
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TRAP(r, CreateDeviceThreadL(aMessage));
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if(r != KErrNone)
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{
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aMessage.Complete(r);
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return;
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}
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break;
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/* If it is a cleanup then we need to delete the iDeviceThread */
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case EUsbHostMsFinalCleanup:
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if(iDeviceThread->IsActive())
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{
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TRequestStatus* s=&iDeviceThread->iStatus;
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iThread.RequestComplete(s, KErrSessionClosed);
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}
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iDeviceThread->Cancel();
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delete iDeviceThread;
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iThread.Kill(KErrNone);
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aMessage.Complete(KErrNone);
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return;
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default:
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break;
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}
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__HOSTPRINT1(_L("Queuing %d message"), ++iMsgCount);
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__ASSERT_DEBUG(iDeviceThread != NULL, User::Panic(KUsbMsHostPanicCat, EDeviceThreadDoesNotExist));
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r = iDeviceThread->QueueMsg(aMessage);
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if(r != KErrNone)
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{
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aMessage.Complete(r);
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return;
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}
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if(iDeviceThread->IsActive())
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{
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iDeviceThread->Lock();
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if(iDeviceThread->iIsSignalled)
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{
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iDeviceThread->Unlock();
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return;
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}
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iDeviceThread->iIsSignalled = ETrue;
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iDeviceThread->Unlock();
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__HOSTPRINT(_L("Signaling device thread to handle message"));
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TRequestStatus* s=&iDeviceThread->iStatus;
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iThread.RequestComplete(s, KErrNone);
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}
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}
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void CUsbHostMsSession::CreateDeviceThreadL(const RMessage2& aMessage)
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{
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THostMassStorageConfig msDeviceConfig;
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TPtr8 ptr((TUint8*)&msDeviceConfig,sizeof(THostMassStorageConfig));
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aMessage.ReadL(0, ptr);
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__HOSTPRINT1(_L("EUsbHostMsRegisterInterface Token=%d "), msDeviceConfig.iInterfaceToken);
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TInt r = KErrNone;
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TName nameBuf;
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TRequestStatus aStatus;
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nameBuf.Format(_L("Host Ms Thread%d"), msDeviceConfig.iInterfaceToken);
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iDeviceThread = CUsbHostMsDeviceThread::NewL(msDeviceConfig.iInterfaceToken);
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RHeap* h = (RHeap*)&User::Allocator();
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TInt maxsize = h->MaxLength(); // loader heap max size = file server heap max size
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const TUint KHeapMinSize = 2048;
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r = iThread.Create(nameBuf, CUsbHostMsDeviceThread::Entry, KDefaultStackSize, KHeapMinSize, maxsize, iDeviceThread);
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if(r != KErrNone)
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{
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delete iDeviceThread;
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iDeviceThread = NULL;
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User::Leave(r);
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}
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iThread.SetPriority(EPriorityAbsoluteBackgroundNormal);
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iThread.Rendezvous(aStatus);
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iThread.Resume();
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User::WaitForRequest(aStatus);
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if(aStatus != KErrNone)
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{
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if(iDeviceThread->IsActive())
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{
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TRequestStatus* s=&iDeviceThread->iStatus;
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iThread.RequestComplete(s, KErrSessionClosed);
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}
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iDeviceThread->Cancel();
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delete iDeviceThread;
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iDeviceThread = NULL;
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iThread.Kill(KErrNone);
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User::Leave(aStatus.Int());
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}
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}
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