/**
 ******************************************************************************
 *
 * @file       pios_mem.c
 * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2014.
 * @addtogroup PiOS
 * @{
 * @addtogroup PiOS
 * @{
 * @brief PiOS memory allocation API
 *****************************************************************************/
/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
#include <pios.h>
#include <pios_mem.h>

#ifdef PIOS_TARGET_PROVIDES_FAST_HEAP
// relies on pios_general_malloc to perform the allocation (i.e. pios_msheap.c)
extern void *pios_general_malloc(void *ptr, size_t size, bool fastheap);

void *pios_fastheapmalloc(size_t size)
{
    return pios_general_malloc(NULL, size, true);
}


void *pios_malloc(size_t size)
{
    return pios_general_malloc(NULL, size, false);
}

void *pios_realloc(__attribute__((unused)) void *ptr, __attribute__((unused)) size_t size)
{
#ifdef PIOS_INCLUDE_REALLOC
    return pios_general_malloc(ptr, size, false);

#else
    // Not allowed to use realloc without the proper define PIOS_INCLUDE_REALLOC set
    while (1) {
        ;
    }
    return NULL;

#endif
}

void pios_free(void *p)
{
    vPortFree(p);
}

#else /* ifdef PIOS_TARGET_PROVIDES_FAST_HEAP */
// demand to pvPortMalloc implementation
void *pios_fastheapmalloc(size_t size)
{
    return pvPortMalloc(size);
}


void *pios_malloc(size_t size)
{
    return pvPortMalloc(size);
}

void *pios_realloc(__attribute__((unused)) void *ptr, __attribute__((unused)) size_t size)
{
#ifdef PIOS_INCLUDE_REALLOC
    return pvPortMalloc(size);

#else
    // Not allowed to use realloc without the proper define PIOS_INCLUDE_REALLOC set
    while (1) {
        ;
    }
    return NULL;

#endif
}

void pios_free(void *p)
{
    vPortFree(p);
}

#endif /* ifdef PIOS_TARGET_PROVIDES_FAST_HEAP */