/*
* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of the License "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:
* This file implements the SIF Transport Session
*
*/
#include "siftransportserver.h"
#include <scs/ipcstream.h>
#include <scs/nullstream.h>
#include <usif/sif/sif.h>
#include "siftransportcommon.h"
#include "usiflog.h"
using namespace Usif;
CSifTransportSession* CSifTransportSession::NewL(CSifTransportServer &aServer, TransportTaskFactory::GenerateTask aTaskFactory)
/**
Factory function allocates new instance of CSifTransportSession.
@return New, initialized instance of CSifTransportSession
which is owned by the caller.
*/
{
CSifTransportSession* self = new (ELeave) CSifTransportSession(aServer, aTaskFactory);
CleanupStack::PushL(self);
self->ConstructL();
CleanupStack::Pop(self);
return self;
}
CSifTransportSession::CSifTransportSession(CSifTransportServer &aServer, TransportTaskFactory::GenerateTask aTaskFactory)
/**
This private constructor prevents direct instantiation.
*/
: CScsSession(aServer), iTaskFactory(aTaskFactory), iExclusiveOperation(ETrue)
{
DEBUG_PRINTF3(_L8("0x%x CSifSession(server %x)\n"), this, &aServer);
}
CSifTransportSession::~CSifTransportSession()
/**
The base class destructor destroys any remaining subsessions
or outstanding requests.
*/
{
DEBUG_PRINTF2(_L8("0x%x ~CSifTransportSession)\n"), this);
}
TBool CSifTransportSession::DoServiceL(TInt aFunction, const RMessage2& aMessage)
/**
Implement CScsSession by handling the supplied message.
Note the subsession creation command is automatically sent to
DoCreateSubsessionL, and not this function.
@param aFunction Function identifier without SCS code.
@param aMessage Standard server-side handle to message.
*/
{
DEBUG_PRINTF3(_L8("0x%x CSifSession::DoServiceL function %d\n"), this, aFunction);
// Check if aFunction falls into the expected range
if (aFunction < EGetComponentInfoByFileName || aFunction > EDeactivate)
{
aMessage.Panic(KSifTransportServerRequestError, KErrNotSupported);
return ETrue;
}
// Check if this is an Install or Uninstall request, if yes read the ExclusiveOperation flag from aMessage
if (aFunction == EGetComponentInfoByFileName || aFunction == EGetComponentInfoByFileHandle)
{
// GetComponentInfo requests are always processed regardless of the state of the SIF server.
iExclusiveOperation = EFalse;
}
else if (aFunction >= EInstallByFileName && aFunction <= EUninstallWithOpaqueData)
{
// Read the ExclusiveOperation flag from aMessage for a synchronous request
if (aFunction == EInstallByFileHandleWithOpaqueDataPreamble)
{
iExclusiveOperation = aMessage.Int0() != EFalse;
return ETrue;
}
// Read the ExclusiveOperation flag from aMessage for asynchronous requests
if (aFunction == EInstallByFileName ||
aFunction == EInstallByFileNameWithOpaqueData ||
aFunction == EUninstall ||
aFunction == EUninstallWithOpaqueData)
{
iExclusiveOperation = aMessage.Int1() != EFalse;
}
else if (aFunction == EInstallByFileHandle)
{
iExclusiveOperation = aMessage.Int2() != EFalse;
}
}
else
{
// We set iExclusiveOperation to ETrue in the constructor. However, we have to
// set it here again because the client may send more requests within the same
// session.
iExclusiveOperation = ETrue;
}
// If the ExclusiveOperation flag is set to ETrue and there is another pending request we leave with KErrServerBusy
if (iExclusiveOperation && iServer.iAsyncRequests.Count() > 0)
{
User::Leave(KErrServerBusy);
}
// Create new request and execute it
CSifTransportRequest::CreateAndExecuteL(aFunction, this, iTaskFactory, aMessage);
return EFalse;
}