1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/glib/glibbackend/src/lowmem.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,103 @@
     1.4 +/*
     1.5 +* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
     1.6 +* All rights reserved.
     1.7 +* This component and the accompanying materials are made available
     1.8 +* under the terms of "Eclipse Public License v1.0"
     1.9 +* which accompanies this distribution, and is available
    1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.11 +*
    1.12 +* Initial Contributors:
    1.13 +* Nokia Corporation - initial contribution.
    1.14 +*
    1.15 +* Contributors:
    1.16 +*
    1.17 +* Description: 
    1.18 +*
    1.19 +*/
    1.20 +
    1.21 +
    1.22 + 
    1.23 +#include "lowmem.h"
    1.24 +#include "glibbackend_wsd.h"
    1.25 +#include <pthread.h>
    1.26 +#include <stdlib.h>
    1.27 +
    1.28 +#if EMULATOR
    1.29 +
    1.30 +PLS(key,lowmem,pthread_key_t)
    1.31 +PLS(key_once,lowmem,pthread_once_t)
    1.32 +
    1.33 +#define key (*FUNCTION_NAME(key,lowmem )())
    1.34 +#define key_once (*FUNCTION_NAME(key_once,lowmem )())
    1.35 +
    1.36 +#else
    1.37 +pthread_key_t key;
    1.38 +pthread_once_t key_once = PTHREAD_ONCE_INIT;
    1.39 +#endif /* EMULATOR */
    1.40 +
    1.41 +static void make_key()
    1.42 +{
    1.43 +	pthread_key_create(&key,NULL);
    1.44 +}
    1.45 +
    1.46 +EXPORT_C mem_info * get_thread_specific_data()
    1.47 +{
    1.48 +	pthread_once(&key_once, make_key);
    1.49 +	return (mem_info *)pthread_getspecific(key);
    1.50 +}
    1.51 +
    1.52 +/* This function sets the thread specfic data which is of the type 	*
    1.53 + * struct mem_info.The function return 0 in case of success and a	*
    1.54 + * non zero value in case of failure.								*
    1.55 + */
    1.56 +EXPORT_C int set_thread_specific_data(mem_info *m)
    1.57 +{
    1.58 +	pthread_once(&key_once, make_key);
    1.59 +	if(pthread_setspecific(key,(void *)m))
    1.60 +	{
    1.61 +		return 1;
    1.62 +	}
    1.63 +	
    1.64 +	return 0;
    1.65 +}
    1.66 +
    1.67 +EXPORT_C int push(cleanUpStack *cs,void *ptr)
    1.68 +{
    1.69 +	if((*cs).top == 999)	
    1.70 +		return -1;
    1.71 +	else
    1.72 +		(*cs).ptr[++((*cs).top)] = ptr;
    1.73 +	return 0;
    1.74 +}
    1.75 +
    1.76 +EXPORT_C void * pop(cleanUpStack *cs)
    1.77 +{
    1.78 +	return (*cs).ptr[((*cs).top)--];
    1.79 +}
    1.80 +
    1.81 +EXPORT_C void clearCleanUpStack(cleanUpStack *cs)
    1.82 +{
    1.83 +	(*cs).top = -1;
    1.84 +}
    1.85 +
    1.86 +EXPORT_C void destroyCleanUpStack(cleanUpStack *cs)
    1.87 +{
    1.88 +	while((*cs).top != -1)
    1.89 +	{
    1.90 +		free((*cs).ptr[((*cs).top)--]);
    1.91 +	}
    1.92 +}
    1.93 +
    1.94 +
    1.95 +EXPORT_C void findAndDestroy(cleanUpStack *cs,void *ptr)
    1.96 +{
    1.97 +	int i;
    1.98 +	for(i = 0; i < (*cs).top ; i++ )
    1.99 +	{
   1.100 +		if((*cs).ptr[i] == ptr)
   1.101 +		{
   1.102 +			(*cs).ptr[i] = NULL;
   1.103 +			break;
   1.104 +		}
   1.105 +	}
   1.106 +}