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/*
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* Copyright (c) 2006 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: XIMP Framework process starter implementation.
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*
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*/
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// INCLUDE FILES
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#include "ximpprocessstarter.h"
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#include <e32std.h>
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#include <f32file.h>
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// CONSTANTS
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_LIT( KEka2ExeDir,"\\sys\\bin\\");
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_LIT( KEka2LaunchMutexExt, "[lMtx]" );
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const TInt KEka2SrvConnTries = 7; // Try to start 7 times
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// before giving up
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const TInt KEka2SrvConnInitialRetryWait = 500; // MicroSeconds => 0.0005s
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// ==============================================================
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// ====================== HELPER CLASS ==========================
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// ==============================================================
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/**
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* RSessionBase accessor to give to the XIMPProcessStarter
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* access to RSessionBase::CreateSession().
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*/
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class REka2SessionBaseAccessor : public RSessionBase
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{
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public: // Constructor
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inline REka2SessionBaseAccessor()
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{
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}
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public: // New functions
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/**
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* Public access to RSessionBase::CreateSession().
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*/
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inline TInt CreateSession( const TDesC& aServer,
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const TVersion& aVersion,
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TInt aAsyncMessageSlots )
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{
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return RSessionBase::CreateSession( aServer,
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aVersion,
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aAsyncMessageSlots );
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}
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};
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// ==============================================================
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// ====================== PROCESSSTARTER ========================
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// ==============================================================
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// --------------------------------------------------------------
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// XIMPProcessStarter::FullExePathForClienLocation()
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// --------------------------------------------------------------
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//
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EXPORT_C void XIMPProcessStarter::FullExePathForClienLocation(
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const TDesC& aExeName,
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TFileName& aFullExePath )
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{
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//Get drive (C:) where this client code is installed
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{
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TFileName tmp;
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Dll::FileName( tmp );
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aFullExePath.Copy( TParsePtrC( tmp ).Drive() );
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}
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//Build the rest from the exe path
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aFullExePath.Append( KEka2ExeDir );
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aFullExePath.Append( aExeName );
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}
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// --------------------------------------------------------------
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// XIMPProcessStarter::StartInstance()
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// --------------------------------------------------------------
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//
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EXPORT_C TInt XIMPProcessStarter::StartInstance(
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const TDesC& aFullExePath,
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const TDesC& aCommand,
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const TArray< TXIMPProcessStartupParam >* aParams )
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{
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RMutex launchMutex;
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TInt error = KErrNotFound;
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{
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// Dynamic mutex name used to allow code share
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TName launchMutexName( TParsePtrC( aFullExePath ).Name() );
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launchMutexName.Append( KEka2LaunchMutexExt );
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// Open or Create mutex to serialize to access to server startup code.
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// (race condition safe way)
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while( error == KErrNotFound )
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{
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error = launchMutex.CreateGlobal( launchMutexName );
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if( error != KErrAlreadyExists )
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{
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break;
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}
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error = launchMutex.OpenGlobal( launchMutexName );
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}
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if( error != KErrNone )
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{
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return error;
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}
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}
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launchMutex.Wait();
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//Serialized access
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error = XIMPProcessStarter::DoStartInstance( aFullExePath,
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aCommand,
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aParams );
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launchMutex.Signal();
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launchMutex.Close();
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return error;
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}
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// --------------------------------------------------------------
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// XIMPProcessStarter::ConnectToServer()
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// --------------------------------------------------------------
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//
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EXPORT_C TInt XIMPProcessStarter::ConnectToServer(
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const TDesC& aFullExePath,
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const TDesC& aCommand,
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const TArray< TXIMPProcessStartupParam >* aParams,
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RSessionBase& aSessionToConnect,
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const TDesC& aServerName,
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const TVersion& aClientVersion,
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TInt aAsyncMessageSlots )
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{
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if( aSessionToConnect.Handle() != KNullHandle )
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{
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return KErrInUse;
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}
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TInt err = KErrNone;
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TInt startupWait = KEka2SrvConnInitialRetryWait;
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//Server connect and launch loop
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for( TInt trie = 0 ; trie < KEka2SrvConnTries ; trie++ )
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{
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REka2SessionBaseAccessor acc;
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err = acc.CreateSession( aServerName,
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aClientVersion,
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aAsyncMessageSlots );
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if( err == KErrNone )
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{
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//session ownership is now on client
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aSessionToConnect = acc;
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return KErrNone;
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}
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else if( ( err == KErrNotFound ) ||
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( err == KErrServerTerminated ) )
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{
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//Server missing or died when connecting
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//Start a new server
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err = XIMPProcessStarter::StartInstance( aFullExePath,
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aCommand,
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aParams );
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//If process exist already, then all is fine
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//(some other process started it between the origical connect and launch trie)
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if( err == KErrAlreadyExists )
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{
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err = KErrNone;
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}
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//If server process start failed, bail out.
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if( err != KErrNone )
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{
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return err;
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}
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//If this is 2nd or subsequent try,
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//give some time for server to startup
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if( trie > 0 )
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{
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User::After( startupWait ); // CSI: 92 #
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startupWait = 2 * startupWait;
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}
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}
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else
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{
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//Server process start failed. Bail out.
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return err;
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}
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}
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return err;
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}
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// --------------------------------------------------------------
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// XIMPProcessStarter::DoStartServerInstance()
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// --------------------------------------------------------------
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//
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TInt XIMPProcessStarter::DoStartInstance(
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const TDesC& aFullExePath,
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const TDesC& aCommand,
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const TArray< TXIMPProcessStartupParam >* aParams )
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{
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TInt error = KErrNone;
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//Create process
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RProcess process;
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error = process.Create( aFullExePath, aCommand );
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if( error == KErrNone )
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{
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//Set process startup parameters
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error = ApplyParameters( aParams, process );
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//And execute the process and wait it's startup
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if( error == KErrNone )
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{
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TRequestStatus rendezvousStatus;
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process.Rendezvous( rendezvousStatus );
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process.Resume();
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User::WaitForRequest( rendezvousStatus ); // CSI: 94 #
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error = rendezvousStatus.Int();
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if( process.ExitType() != EExitPending )
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{
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//Something failed in server startup
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//Force the error code to be always something
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//else than KErrNone
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if( error == KErrNone )
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{
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error = KErrServerTerminated;
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}
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}
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}
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}
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process.Close();
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return error;
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}
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// --------------------------------------------------------------
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// XIMPProcessStarter::ApplyParameters()
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// --------------------------------------------------------------
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//
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TInt XIMPProcessStarter::ApplyParameters(
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const TArray< TXIMPProcessStartupParam >* aParams,
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RProcess& aProcess )
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{
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TInt error = KErrNone;
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if( aParams )
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{
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const TInt paramCount = aParams->Count();
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for( TInt ix = 0; ix < paramCount; ix++ )
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{
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error = (*aParams)[ ix ].ApplyParam( aProcess );
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if( error != KErrNone )
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{
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break;
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}
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}
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}
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return error;
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}
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// ==============================================================
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// ================== TPROCESSSTARTUPPARAM ======================
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// ==============================================================
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// --------------------------------------------------------------
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// TXIMPProcessStartupParam::TXIMPProcessStartupParam()
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// --------------------------------------------------------------
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//
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EXPORT_C TXIMPProcessStartupParam::TXIMPProcessStartupParam()
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: iType( EUnknown ),
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iSlot( KErrNotFound )
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{
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}
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// --------------------------------------------------------------
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// TXIMPProcessStartupParam::Set()
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// --------------------------------------------------------------
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//
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void TXIMPProcessStartupParam::Set( TInt aSlot,
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const RHandleBase& aHandle )
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{
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iType = EHandle;
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iSlot = aSlot;
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iHandle = &aHandle;
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}
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// --------------------------------------------------------------
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// TXIMPProcessStartupParam::Set()
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// --------------------------------------------------------------
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//
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void TXIMPProcessStartupParam::Set( TInt aSlot,
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const RSubSessionBase& aSubSession )
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{
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iType = ESubSession;
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iSlot = aSlot;
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iSubSession = &aSubSession;
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}
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// --------------------------------------------------------------
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// TXIMPProcessStartupParam::Set()
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// --------------------------------------------------------------
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//
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void TXIMPProcessStartupParam::Set( TInt aSlot,
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const TDesC16& aDes )
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{
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iType = EDes16;
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iSlot = aSlot;
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iDes16.Set( aDes );
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}
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// --------------------------------------------------------------
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// TXIMPProcessStartupParam::Set()
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// --------------------------------------------------------------
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//
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void TXIMPProcessStartupParam::Set( TInt aSlot,
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const TDesC8& aDes )
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{
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iType = EDes8;
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iSlot = aSlot;
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iDes8.Set( aDes );
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}
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// --------------------------------------------------------------
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// TXIMPProcessStartupParam::Set()
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// --------------------------------------------------------------
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//
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EXPORT_C void TXIMPProcessStartupParam::Set( TInt aSlot,
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TInt aInt )
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{
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iType = EInt;
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iSlot = aSlot;
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iInt = aInt;
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}
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// --------------------------------------------------------------
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// TXIMPProcessStartupParam::ApplyParam()
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// --------------------------------------------------------------
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//
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TInt TXIMPProcessStartupParam::ApplyParam( RProcess& aProcess ) const
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{
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switch( iType )
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{
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case EHandle: return aProcess.SetParameter( iSlot, *iHandle );
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case ESubSession: return aProcess.SetParameter( iSlot, *iSubSession );
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case EDes16: return aProcess.SetParameter( iSlot, iDes16 );
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case EDes8: return aProcess.SetParameter( iSlot, iDes8 );
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case EInt: return aProcess.SetParameter( iSlot, iInt );
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}
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return KErrUnknown;
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}
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// END OF FILE
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