/*

* Copyright (c) 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:

*

*/

#include <e32std.h>

#include <f32fsys.h>

_LIT(KEStartPanicCatagory, "SVP_HOSTFS_SYSSTART");

enum TEStartPanic

    {

    ELitNoDM = 1,                           // No Domain Manager

    ELitDMInitFail,                         // Domain Manager init fail

    ELitHALFail,                            // HAL init fail

    ELitConnectFsFail1,                     // Connect fs 1 fail

    ELitInitLocalPwStoreFail,               // Init PwStore fail

    ELitLocaleInitialisationFail,           // Initialisation of locale properties failed

    ELitFSInitDriveInfoFail,                // FS Init DriveInfo fail

    ELitCreateTrapHandlerFail,              // Create trap handler fail

    ELitLoadSysLddsFail,                    // Load sys ldds fail

    ELitLocalDriveMappingFail,              // Local drive mapping fail

    ELitDriveMappingFileFail,               // Drive mapping file not found

    ELitSwapMappingFailArrayInconsistent,   // Swap mappings fail - array inconsistent

    ELitFsSwapMappingFail,                  // Swap mappings fail - Fs request failed

    EPropertyError,                         // RProperty return error

    ECompMountFsFail,                       // Failed comp fs mount

    EFsNameFail,                            // File system name on Z: failed

    ELitNoWS,                               // No WSERV

    EStartupModeFail,                       // Get startup mode failed

    ESysAgentFail,                          // Fail to launch system agent

    ESetSystemDriveFail                     // Fail to set System Drive

    };

inline void Panic(TEStartPanic aPanic, TInt aReason)

    {

    TBuf<10> panic(KEStartPanicCatagory);

    panic.AppendFormat(_L("_%d"), aPanic);

    User::Panic(panic, aReason);

    }

_LIT(KServerPathSysBin, "0:\\Sys\\Bin\\");

_LIT(KWindowServerRootName1,"EWSRV.EXE");	

_LIT(KHostFSMounter, "z:\\sys\\bin\\SVPHOSTFS.EXE");

TBool CreateServer(const TDriveList& aDrives, const TDesC& aRootName)

	{

	RProcess ws;

	TInt r=ws.Create(aRootName, KNullDesC);

	if (r!=KErrNone)

		{

		TFileName name;

		name = KServerPathSysBin();

		name+=aRootName;

		TInt i=EDriveZ;

		FOREVER

			{

			i= (i==0) ? EDriveZ : i-1;

			if (aDrives[i]!=KDriveAbsent) // Got a valid drive

				{

				name[0]=(TUint32)('A'+i); // Set the drive letter

				r=ws.Create(name,KNullDesC);

				if (r==KErrNone)

					break;

				}

			if (i==EDriveZ)

				return EFalse;

			}

		}

	ws.Resume();

	ws.Close();

	return ETrue;

	}

GLDEF_C TInt E32Main()

        {

	RProcess ws;

	TInt r=ws.Create(KHostFSMounter, KNullDesC);

	if (r == KErrNone)

	        {

		TRequestStatus stat;

		ws.Rendezvous(stat);

		ws.Resume();

		User::WaitForRequest(stat);		// wait for start or death

		ws.Close();

		}

	// Start the window server 

	RFs aFs;

	r = aFs.Connect();

	if (r != KErrNone)

	        Panic(ELitConnectFsFail1, r);

	TDriveList list;

	aFs.DriveList(list);

	aFs.Close();

	if (!CreateServer(list,KWindowServerRootName1))

	        Panic(ELitNoWS,KErrNotFound);

	return(KErrNone);

	}