// Copyright (c) 1995-2009 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\include\win32atx.h

 // 

 //

 /**

  @file

  @internalComponent

 */

 #ifndef __WIN32ATX_H__

 #define __WIN32ATX_H__

 #if defined(__VC32__)

 #define	MAX_ATEXIT_HANDLERS	255

 #ifdef __KERNEL_MODE__

 #define PANIC()	Kern::Fault("ATEXIT", __LINE__)

 #else

 _LIT(KLitAtExitPanic,"ATEXIT");

 #define PANIC()	User::Panic(KLitAtExitPanic, __LINE__)

 #endif

 extern "C" {

 typedef void (__cdecl* TAtExit)(void);

 static TUint sp=0;

 static TAtExit handlers[MAX_ATEXIT_HANDLERS];

 int atexit(TAtExit aFunc)

 	{

 	if (sp>=MAX_ATEXIT_HANDLERS)

 		PANIC();

 	handlers[sp++]=aFunc;

 	return 0;

 	}

 void __call_atexit_handlers()

 	{

 	while(sp)

 		(*handlers[--sp])();

 	}

 #pragma data_seg(".CRT$XPU")

 TAtExit __xp_a[] = { __call_atexit_handlers };

 }

 #elif defined(__CW32__)

 struct SDestructorEntry

 	{

 	SDestructorEntry* iNext;

 	TAny* iDstrFn;

 	TAny* iObj;

 	};

 SDestructorEntry* DEListHead;

 extern "C" {

 void* __register_global_object(void* obj, void* dfn, void* entry)

 	{

 	SDestructorEntry* e = (SDestructorEntry*)entry;

 	e->iNext = DEListHead;

 	e->iDstrFn = dfn;

 	e->iObj = obj;

 	DEListHead = e;

 	return obj;

 	}

 __declspec(naked) void __destroy_global_chain(void)

 	{

 	_asm push ebp

 	_asm mov ebp, esp

 	_asm push ebx

 	_asm lea ebx, DEListHead

 	dgc1:

 	_asm mov ebx, [ebx]

 	_asm test ebx, ebx

 	_asm jz dgc0

 	_asm mov ecx, [ebx+8]

 	_asm call dword ptr [ebx+4]

 	_asm jmp dgc1

 	dgc0:

 	_asm lea ebx, DEListHead

 	_asm mov [ebx], 0

 	_asm pop ebx

 	_asm mov esp, ebp

 	_asm pop ebp

 	_asm ret

 	}

 #pragma data_seg(".CRT$XPU")

 void (*__xp_a[])(void) = { &__destroy_global_chain };

 }

 #elif defined(__GCC32__)

 // todo: figure out what to do here

 #else

 #error Unknown X86 compiler

 #endif

 #endif