1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/graphics/windowing/windowserver/wins_switching/wservswitch.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,103 @@
     1.4 +// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +// For the Winscw Emulator only, selects between NGA and Non-NGA version of wsgraphicdrawer.
    1.18 +// The default is the non-GCE based version.
    1.19 +// To select the NGA version do one of:
    1.20 +// 1. Add a line to the epoc.ini file in \epoc32\data like this:
    1.21 +// symbian_graphics_use_gce ON
    1.22 +// or
    1.23 +// 2. Start epoc.exe with these parameters, (the "--" IS necessary):
    1.24 +// -Dsymbian_graphics_use_gce=ON --
    1.25 +// or
    1.26 +// 3. epoc.exe can be told to switch to a different initialisation file than epoc.ini, with the -M parameter.
    1.27 +// Progress chaining to the real Wserv is logged in epocwind.out.
    1.28 +// 
    1.29 +//
    1.30 +
    1.31 +#include <e32svr.h>
    1.32 +#include <u32hal.h>
    1.33 +
    1.34 +
    1.35 +_LIT(KProcessName, "WservSwitch");
    1.36 +
    1.37 +
    1.38 +TInt ChainWservSwitch()
    1.39 +	{
    1.40 +	_LIT(KWservSwitchNga,"z:\\sys\\bin\\wserv_nga.exe");
    1.41 +	_LIT(KWservSwitchNonNga,"z:\\sys\\bin\\wserv_nonnga.exe");
    1.42 +	// need to forward the command parameters to the chained version of Wserv
    1.43 +	TInt argLen = User::CommandLineLength();
    1.44 +	HBufC* arg = HBufC::New(argLen);
    1.45 +	if (arg == NULL)
    1.46 +		{
    1.47 +		return KErrNoMemory;
    1.48 +		}
    1.49 +	TPtr argPtr = arg->Des();
    1.50 +	User::CommandLine(argPtr);
    1.51 +
    1.52 +	// NGA or Non-NGA WServ version?
    1.53 +	TBool nga = EFalse;
    1.54 +	UserSvr::HalFunction(EHalGroupEmulator, EEmulatorHalBoolProperty,  (TAny*)"symbian_graphics_use_gce",  &nga);
    1.55 +
    1.56 +	// try to launch it
    1.57 +	const TPtrC exeName = nga ?  KWservSwitchNga() : KWservSwitchNonNga();
    1.58 +
    1.59 +#ifdef _DEBUG
    1.60 +	RDebug::Print(_L("%S: Starting \"%S\" \"%S\""), &KProcessName, &exeName, &argPtr);
    1.61 +#endif
    1.62 +
    1.63 +	RProcess server;
    1.64 +	TInt err = server.Create(exeName, argPtr, EOwnerThread);
    1.65 +	delete arg;
    1.66 +	arg = NULL;
    1.67 +	if (err)
    1.68 +		{
    1.69 +		return err;
    1.70 +		}
    1.71 +
    1.72 +	// wait for server to start
    1.73 +#ifdef _DEBUG
    1.74 +	RDebug::Print(_L("%S: waiting on process ..."), &KProcessName);
    1.75 +#endif
    1.76 +	TRequestStatus stat;
    1.77 +	server.Rendezvous(stat);
    1.78 +
    1.79 +	if (stat!=KRequestPending)
    1.80 +		{ // abort startup
    1.81 +		server.Kill(0);
    1.82 +		}
    1.83 +	else
    1.84 +		{ // logon OK - start the server
    1.85 +		server.Resume();
    1.86 +		}
    1.87 +
    1.88 +	User::WaitForRequest(stat);
    1.89 +	return (server.ExitType() == EExitPanic) ? KErrGeneral : stat.Int();
    1.90 +	}
    1.91 +
    1.92 +
    1.93 +TInt E32Main()
    1.94 +	{
    1.95 +	TInt error = ChainWservSwitch();
    1.96 +	// propagate error to SysStart
    1.97 +	if (error)
    1.98 +		{
    1.99 +#ifdef _DEBUG
   1.100 +		RDebug::Print(_L("%S: Failed with error %i"), &KProcessName, error);
   1.101 +#endif
   1.102 +		}
   1.103 +	RProcess::Rendezvous(error);
   1.104 +	return error;
   1.105 +	}
   1.106 +