/*

* 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;

		}

	}

}