--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sysstatemgmt/systemstatereferenceplugins/custcmd/src/ssmuiproviderdllswitch.cpp	Tue Feb 02 00:53:00 2010 +0200
@@ -0,0 +1,86 @@
+// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "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:
+// ssmcustomuidswitch.cpp
+// 
+//
+
+/**
+ @file
+ @internalComponent
+ @released
+*/
+#include <emulator.h>
+
+extern "C" {
+
+#include "ssmuiproviderdllswitch_stubs.h"
+
+FARPROC vector[MAX_ORDINAL + 1];
+
+void fill_vector(HINSTANCE aDll)
+	{
+	int i;
+	for (i=1; i <= MAX_ORDINAL; i++)
+		{
+		vector[i] = GetProcAddress(aDll, (LPCSTR)i);
+		}
+	vector[0] = (FARPROC)1;		// initialised
+	}
+
+void init_vector()
+	{
+	// prevent deadlock with EKA2 scheduler
+	__LOCK_HOST;
+
+	HINSTANCE instance;
+
+	// Try loading dll with customised uid data first
+	//
+	instance = LoadLibraryA("ssmuiproviderdllcustomised.dll");
+	if (instance != NULL)
+		{
+		fill_vector(instance);
+		return;
+		}
+
+	// Try loading dll with default uid data
+	//
+	instance = LoadLibraryA("ssmuiproviderdlldefault.dll");
+	if (instance != NULL)
+		{
+		fill_vector(instance);
+		return;
+		}
+
+	// die
+	//
+	OutputDebugStringA("Unable to load ssm custom command uid implementation");
+	_asm int 3;
+	}
+
+__declspec(naked) void common_dispatch()
+	{
+	_asm cmp	dword ptr vector,0		// initialised?
+	_asm jne  	call_though_vector
+	_asm push	eax
+	_asm push	ecx
+	_asm push	edx
+	_asm call	init_vector
+	_asm pop	edx
+	_asm pop 	ecx
+	_asm pop 	eax
+call_though_vector:
+	_asm jmp	[vector+eax*4]
+	} //lint !e1065 Suppress Symbol 'common_dispatch(void)' not declared as "C" conflicts
+}