// 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);

	}