datacommsserver/esockserver/csock/cs_connectionserv.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 16 Apr 2010 16:15:03 +0300
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Revision: 201015 Kit: 201015
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// Copyright (c) 2006-2009 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 "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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 @publishedPartner
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 @released since 399
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*/
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#include <ecom/ecom.h>
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#include <es_sock.h>
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#include <comms-infras/es_connectionserv.h>
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#include "cs_connectionservimpl.h"
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#include <comms-infras/es_connectionservermessages.h>
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#include <connpref.h>
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#include <comms-infras/ss_log.h>
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#include <rsshared.h>
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#include <es_ver.h>
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#ifdef _DEBUG
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// Panic category for "absolutely impossible!" vanilla ASSERT()-type panics from this module
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// (if it could happen through user error then you should give it an explicit, documented, category + code)
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_LIT(KSpecAssert_ESockCSockcscnct, "ESockCSockcscnct");
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#endif
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using namespace ConnectionServ;
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_LIT(KConnectionServerName, "!ConnectionServer");
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EXPORT_C RConnectionServ::RConnectionServ() :
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	iConnectionServImpl(0)
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/**
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 Empty ctor
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 */
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	{
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	LOG( ESockLog::Printf(_L8("RConnectionServ %08x:\tRConnectionServ() tid %d"), this, (TUint)RThread().Id()); );
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	}
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EXPORT_C TInt RConnectionServ::Connect(TUint aTierId)
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/** Opens a session to the connection server.
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RHandleBase::Close() should be called once the session is no longer required.
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All resources which are opened using the session will be automatically closed
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when the session terminates.
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@return KErrNone if successful, otherwise another of the system-wide error
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codes. */
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	{
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	LOG( ESockLog::Printf(_L8("RConnectionServ %08x:\tConnect() tid %d tier %d"), this, (TUint)RThread().Id(), aTierId ));
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#ifndef __ESOCK_SUPPRESS_ESOCK_HANDLE_OVERWRITE_PANICS
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	__ASSERT_DEBUG(Handle() == 0, User::Panic(KSpecAssert_ESockCSockcscnct, 1));
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	__ASSERT_DEBUG(iConnectionServImpl == 0, User::Panic(KSpecAssert_ESockCSockcscnct, 2));
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#endif
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	if(Handle())
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		{
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		return KErrInUse;
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		}
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	TVersion ver(KES32MajorVersionNumber,KES32MinorVersionNumber,KES32BuildVersionNumber);
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	TInt result = CreateSession(KConnectionServerName,ver,8,EIpcSession_Sharable);
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	if (result==KErrNotFound)
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		{
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		result=StartC32Full();
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		if (result==KErrNone || result==KErrAlreadyExists)
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			{
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			const TUint numberOfConcurrentRequests = 8;
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			// If this connection attempt also fails then most likely the connection server is
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			// not enabled in the current configuration.
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			result=CreateSession(KConnectionServerName,ver,numberOfConcurrentRequests,EIpcSession_Sharable);
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			}
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		}
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	if(result != KErrNone)
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		{
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		this->Close();
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		return result;
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		}
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	__ASSERT_DEBUG(Handle(), User::Panic(KSpecAssert_ESockCSockcscnct, 3));
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    result = SendReceive(ECMAttachToTierManager, TIpcArgs(aTierId));
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	if(result != KErrNone)
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		{
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		this->Close();
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		return result;
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		}
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	if( iConnectionServImpl == 0 )
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		{
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		TRAP(result, iConnectionServImpl = CConnectionServImpl::NewL(*this));
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		if (result != KErrNone)
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    		{
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    		this->Close();
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    		}
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		}
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	return result;
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	}
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EXPORT_C void RConnectionServ::Close()
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/**
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 Closes the comms manager sub-session
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 Delete owned object and drop to base class
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 */
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	{
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	LOG( ESockLog::Printf(_L8("RConnectionServ%08x:\tClose() tid %d"), this, (TUint)RThread().Id()); );
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	delete iConnectionServImpl; // this causes any requests to be cancelled
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	iConnectionServImpl = 0;
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	RSessionBase::Close();
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	// The API uses ECom types.. This is the last time we get to attempt a cleanup.
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	// This call does no harm if the types are still in use (e.g. stored by client code).
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	REComSession::FinalClose();
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	}
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// Asynchronous multiple-IPC functions. Proxy them through to the active objects which handle them, via the impl object.
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EXPORT_C void RConnectionServ::AccessPointStatusQuery(const CConnectionServParameterBundle& aQuery, CConnectionServParameterBundle& aResult, TRequestStatus& aStatus)
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	{
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	__ASSERT_ALWAYS(iConnectionServImpl != NULL, User::Panic(KConnectionServerName, KErrBadHandle));
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	iConnectionServImpl->AccessPointStatusQuery(aQuery,aResult,aStatus);
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	}
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EXPORT_C void RConnectionServ::CancelAccessPointStatusQuery()
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	{
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	__ASSERT_ALWAYS(iConnectionServImpl != NULL, User::Panic(KConnectionServerName, KErrBadHandle));
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	iConnectionServImpl->CancelAccessPointStatusQuery();
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	}
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EXPORT_C void RConnectionServ::AccessPointNotification(const CConnectionServParameterBundle& aQuery, MAccessPointNotificationObserver& aObserver)
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	{
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	__ASSERT_ALWAYS(iConnectionServImpl != NULL, User::Panic(KConnectionServerName, KErrBadHandle));
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	iConnectionServImpl->AccessPointNotification(aQuery,aObserver);
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	}
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EXPORT_C void RConnectionServ::CancelAccessPointNotification()
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	{
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	__ASSERT_ALWAYS(iConnectionServImpl != NULL, User::Panic(KConnectionServerName, KErrBadHandle));
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	iConnectionServImpl->CancelAccessPointNotification();
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	}
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