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// Copyright (c) 2004-2009 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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// Implements a Symbian OS server that exposes the RUsbMassStorage API
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//
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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 <e32svr.h>
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#include "usbmsshared.h"
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#include "cusbmassstorageserver.h"
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#include "cusbmassstoragesession.h"
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#include "drivemanager.h"
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#include "cusbmassstoragecontroller.h"
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#include "smassstorage.h"
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#include "usbmsserversecuritypolicy.h"
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#include "OstTraceDefinitions.h"
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#ifdef OST_TRACE_COMPILER_IN_USE
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#include "cusbmassstorageserverTraces.h"
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#endif
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/**
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Constructs a USB mass storage Server
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@return a pointer to CUsbMassStorageServer object
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*/
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CUsbMassStorageServer* CUsbMassStorageServer::NewLC(CUsbMassStorageController& aController)
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{
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CUsbMassStorageServer* r = new (ELeave) CUsbMassStorageServer(aController);
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CleanupStack::PushL(r);
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r->StartL(KUsbMsServerName);
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return r;
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}
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/**
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Destructor
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*/
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CUsbMassStorageServer::~CUsbMassStorageServer()
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{
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// Intentionally left blank
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}
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/**
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Constructor
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@param aController a USB mass storage controller reference
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*/
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CUsbMassStorageServer::CUsbMassStorageServer(CUsbMassStorageController& aController)
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: CPolicyServer(EPriorityHigh,KUsbMsServerPolicy)
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, iController(aController)
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{
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OstTraceFunctionEntry0(CUSBMASSSTORAGESERVER_100);
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}
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/**
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Create a new session on this server
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@param &aVersion Version of client
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@return A pointer to a session object to be used for the client
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*/
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CSession2* CUsbMassStorageServer::NewSessionL(const TVersion &aVersion, const RMessage2& /*aMessage*/) const
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{
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OstTraceFunctionEntry0(CUSBMASSSTORAGESERVER_110);
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TVersion v(KUsbMsSrvMajorVersionNumber,KUsbMsSrvMinorVersionNumber,KUsbMsSrvBuildVersionNumber);
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if (!User::QueryVersionSupported(v, aVersion))
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User::Leave(KErrNotSupported);
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CUsbMassStorageServer* ncThis = const_cast<CUsbMassStorageServer*>(this);
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CUsbMassStorageSession* sess = CUsbMassStorageSession::NewL(*ncThis);
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return sess;
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}
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/**
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Inform the client there has been an error.
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@param aError The error that has occurred
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*/
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void CUsbMassStorageServer::Error(TInt aError)
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{
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OstTrace1(TRACE_SMASSSTORAGE_FS, CUSBMASSSTORAGESERVER_120,
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"aError=%d", aError);
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Message().Complete(aError);
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ReStart();
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}
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/**
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Increment the open session count (iSessionCount) by one.
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@post the number of open sessions is incremented by one
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*/
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void CUsbMassStorageServer::IncrementSessionCount()
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{
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OstTrace1(TRACE_SMASSSTORAGE_FS, CUSBMASSSTORAGESERVER_130,
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"SessionCount=%d", iSessionCount);
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__ASSERT_DEBUG(iSessionCount >= 0, User::Panic(KUsbMsSvrPncCat, EUsbMsPanicIllegalIPC));
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++iSessionCount;
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}
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/**
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Decrement the open session count (iSessionCount) by one.
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@post the number of open sessions is decremented by one
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*/
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void CUsbMassStorageServer::DecrementSessionCount()
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{
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OstTrace1(TRACE_SMASSSTORAGE_FS, CUSBMASSSTORAGESERVER_140,
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"SessionCount=%d", iSessionCount);
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__ASSERT_DEBUG(iSessionCount > 0, User::Panic(KUsbMsSvrPncCat, EUsbMsPanicIllegalIPC));
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--iSessionCount;
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}
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