sl@0: // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // For the Winscw Emulator only, selects between NGA and Non-NGA version of wsgraphicdrawer.
sl@0: // The default is the non-GCE based version.
sl@0: // To select the NGA version do one of:
sl@0: // 1. Add a line to the epoc.ini file in \epoc32\data like this:
sl@0: // symbian_graphics_use_gce ON
sl@0: // or
sl@0: // 2. Start epoc.exe with these parameters, (the "--" IS necessary):
sl@0: // -Dsymbian_graphics_use_gce=ON --
sl@0: // or
sl@0: // 3. epoc.exe can be told to switch to a different initialisation file than epoc.ini, with the -M parameter.
sl@0: // Progress chaining to the real Wserv is logged in epocwind.out.
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include <e32svr.h>
sl@0: #include <u32hal.h>
sl@0: 
sl@0: 
sl@0: _LIT(KProcessName, "WservSwitch");
sl@0: 
sl@0: 
sl@0: TInt ChainWservSwitch()
sl@0: 	{
sl@0: 	_LIT(KWservSwitchNga,"z:\\sys\\bin\\wserv_nga.exe");
sl@0: 	_LIT(KWservSwitchNonNga,"z:\\sys\\bin\\wserv_nonnga.exe");
sl@0: 	// need to forward the command parameters to the chained version of Wserv
sl@0: 	TInt argLen = User::CommandLineLength();
sl@0: 	HBufC* arg = HBufC::New(argLen);
sl@0: 	if (arg == NULL)
sl@0: 		{
sl@0: 		return KErrNoMemory;
sl@0: 		}
sl@0: 	TPtr argPtr = arg->Des();
sl@0: 	User::CommandLine(argPtr);
sl@0: 
sl@0: 	// NGA or Non-NGA WServ version?
sl@0: 	TBool nga = EFalse;
sl@0: 	UserSvr::HalFunction(EHalGroupEmulator, EEmulatorHalBoolProperty,  (TAny*)"symbian_graphics_use_gce",  &nga);
sl@0: 
sl@0: 	// try to launch it
sl@0: 	const TPtrC exeName = nga ?  KWservSwitchNga() : KWservSwitchNonNga();
sl@0: 
sl@0: #ifdef _DEBUG
sl@0: 	RDebug::Print(_L("%S: Starting \"%S\" \"%S\""), &KProcessName, &exeName, &argPtr);
sl@0: #endif
sl@0: 
sl@0: 	RProcess server;
sl@0: 	TInt err = server.Create(exeName, argPtr, EOwnerThread);
sl@0: 	delete arg;
sl@0: 	arg = NULL;
sl@0: 	if (err)
sl@0: 		{
sl@0: 		return err;
sl@0: 		}
sl@0: 
sl@0: 	// wait for server to start
sl@0: #ifdef _DEBUG
sl@0: 	RDebug::Print(_L("%S: waiting on process ..."), &KProcessName);
sl@0: #endif
sl@0: 	TRequestStatus stat;
sl@0: 	server.Rendezvous(stat);
sl@0: 
sl@0: 	if (stat!=KRequestPending)
sl@0: 		{ // abort startup
sl@0: 		server.Kill(0);
sl@0: 		}
sl@0: 	else
sl@0: 		{ // logon OK - start the server
sl@0: 		server.Resume();
sl@0: 		}
sl@0: 
sl@0: 	User::WaitForRequest(stat);
sl@0: 	return (server.ExitType() == EExitPanic) ? KErrGeneral : stat.Int();
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TInt E32Main()
sl@0: 	{
sl@0: 	TInt error = ChainWservSwitch();
sl@0: 	// propagate error to SysStart
sl@0: 	if (error)
sl@0: 		{
sl@0: #ifdef _DEBUG
sl@0: 		RDebug::Print(_L("%S: Failed with error %i"), &KProcessName, error);
sl@0: #endif
sl@0: 		}
sl@0: 	RProcess::Rendezvous(error);
sl@0: 	return error;
sl@0: 	}
sl@0: