// Copyright (c) 1998-2009 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:

 // e32\memmodel\emul\win32\zrom.cpp

 // Emulator implementation of the ROM related parts of the system

 // 

 //

 #include "plat_priv.h"

 #include <property.h>

 #include <emulator.h>

 #include "memmodel.h"

 const char* KVariantDllName="ecust.dll";

 TInt P::DefaultInitialTime()

 	{

 //

 // Not used on emulator

 //

 	return KErrGeneral;

 	}

 TInt P::InitSystemTime()

 	{

 //

 //  Initialise system time

 //	Return the initial time in seconds from 00:00:00 01-01-2000

 //

 	TUint dummy;

 	K::SetSystemTimeAndOffset(0, 0, 0, dummy, ETimeSetOffset|ETimeSetNoTimeUpdate);

 	__KTRACE_OPT(KBOOT,Kern::Printf("Use Host time to set system time"));

     TInt seconds;

 	A::SystemTimeInSecondsFrom2000(seconds);

 	return seconds;

 	}

 void P::CreateVariant()

 	{

 	__KTRACE_OPT(KBOOT,Kern::Printf("CreateVariant"));

 	HINSTANCE var = LoadLibraryA(KVariantDllName);

 	if (var)

 		{

 		TLibraryEntry entryPoint=(TLibraryEntry)Emulator::GetProcAddress(var, "_E32Dll");

 		if (entryPoint)

 			{

 			__KTRACE_OPT(KBOOT,Kern::Printf("Found variant"));

 			// Call the entry point (global constructors)

 			__KTRACE_OPT(KBOOT,Kern::Printf("Calling entrypoint %08x",entryPoint));

 			TInt r=entryPoint(KModuleEntryReasonVariantInit0);

 			__KTRACE_OPT(KBOOT,Kern::Printf("Entrypoint returned %d",r));

 			if (r<0)

 				Kern::Fault("VariantEntry",r);

 			// Initialise and create the variant object

 			r=A::CreateVariant(var, r);

 			if (r<0)

 				Kern::Fault("VariantInit",r);

 			__KTRACE_OPT(KBOOT,Kern::Printf("Variant installed"));

 			BTrace::Init0(); // we have to do this after variant has initialised the SuperPage

 			return;

 			}

 		}

 	Kern::Fault("NoVariant",0);

 	}

 TInt StartExtension(const char* aExtension)

 	{

 	HINSTANCE ext;

  	HMODULE mh;

  	if (*aExtension == '?')

  		{

  		ext = LoadLibraryA(++aExtension);

  		if (!ext)

  			{

  			__KTRACE_OPT(KBOOT, Kern::Printf("Optional extension \"%s\" not found", aExtension));

  			return KErrNone;

  			}

  		}

  	else

  		{

  		ext = LoadLibraryA(aExtension);

  		if (!ext)

  			return KErrNotFound;

  		}		

  	mh = GetModuleHandleA(aExtension);	

 	TLibraryEntry entryPoint=(TLibraryEntry)Emulator::GetProcAddress(ext, "_E32Dll");

 	if (!entryPoint)

 		return KErrArgument;

 	TInt r=entryPoint(KModuleEntryReasonExtensionInit0);

 	if (r!=KErrNone)

 		{

 		__KTRACE_OPT(KBOOT,Kern::Printf("Extension %s already started", aExtension));

 		return KErrNone;

 		}

 	DCodeSeg::Wait();

 	r=MM::RegisterModule(mh);

 	DCodeSeg::Signal();

 	if (r!=KErrNone)

 		return r;

 	__KTRACE_OPT(KBOOT,Kern::Printf("Calling entrypoint of %s extension ", aExtension));

 	return entryPoint(KModuleEntryReasonExtensionInit1);

 	}

 void P::StartExtensions()

 	{

 	HMODULE mh = GetModuleHandleA(KVariantDllName);

 	TInt r = MM::RegisterModule(mh);

 	const char* extension = NULL;

 	if (r==KErrNone)

 		extension = Property::GetString("Extension");

 	if (extension)

 		{

 		for (;;)

 			{

 			char name[128];

 			const char* end = strchr(extension, ';');

 			if (!end)

 				break;

 			strncpy(name, extension, end-extension);

 			name[end-extension] = '\0';

 			if (strchr(name, '.') == NULL)

 				strcat(name, ".dll");

 			r = StartExtension(name);

 			if (r != KErrNone)

 				break;

 			extension = end+1;

 			}

 		if (r==KErrNone)

 			r = StartExtension(extension);

 		}

 	if (r != KErrNone)

 		K::Fault(K::EStartExtensionsFailed);

 	}