/*

 * 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 "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 "lowmem.h"

 #include "glibbackend_wsd.h"

 #include <pthread.h>

 #include <stdlib.h>

 #if EMULATOR

 PLS(key,lowmem,pthread_key_t)

 PLS(key_once,lowmem,pthread_once_t)

 #define key (*FUNCTION_NAME(key,lowmem )())

 #define key_once (*FUNCTION_NAME(key_once,lowmem )())

 #else

 pthread_key_t key;

 pthread_once_t key_once = PTHREAD_ONCE_INIT;

 #endif /* EMULATOR */

 static void make_key()

 {

 	pthread_key_create(&key,NULL);

 }

 EXPORT_C mem_info * get_thread_specific_data()

 {

 	pthread_once(&key_once, make_key);

 	return (mem_info *)pthread_getspecific(key);

 }

 /* This function sets the thread specfic data which is of the type 	*

  * struct mem_info.The function return 0 in case of success and a	*

  * non zero value in case of failure.								*

  */

 EXPORT_C int set_thread_specific_data(mem_info *m)

 {

 	pthread_once(&key_once, make_key);

 	if(pthread_setspecific(key,(void *)m))

 	{

 		return 1;

 	}

 	return 0;

 }

 EXPORT_C int push(cleanUpStack *cs,void *ptr)

 {

 	if((*cs).top == 999)	

 		return -1;

 	else

 		(*cs).ptr[++((*cs).top)] = ptr;

 	return 0;

 }

 EXPORT_C void * pop(cleanUpStack *cs)

 {

 	return (*cs).ptr[((*cs).top)--];

 }

 EXPORT_C void clearCleanUpStack(cleanUpStack *cs)

 {

 	(*cs).top = -1;

 }

 EXPORT_C void destroyCleanUpStack(cleanUpStack *cs)

 {

 	while((*cs).top != -1)

 	{

 		free((*cs).ptr[((*cs).top)--]);

 	}

 }

 EXPORT_C void findAndDestroy(cleanUpStack *cs,void *ptr)

 {

 	int i;

 	for(i = 0; i < (*cs).top ; i++ )

 	{

 		if((*cs).ptr[i] == ptr)

 		{

 			(*cs).ptr[i] = NULL;

 			break;

 		}

 	}

 }