pios_heap.c

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/*
 * 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, see <http://www.gnu.org/licenses/>
 */

/* Project Includes */
#include "pios.h"               /* PIOS_INCLUDE_* */

#include "pios_heap.h"          /* External API declaration */
#include <stdbool.h>            /* bool */

#define DEBUG_MALLOC_FAILURES 0
static volatile bool malloc_failed_flag = false;
static void malloc_failed_hook(void)
{
        malloc_failed_flag = true;
#if DEBUG_MALLOC_FAILURES
        static volatile bool wait_here = true;
        while(wait_here);
        wait_here = true;
#endif
}

bool PIOS_heap_malloc_failed_p(void)
{
        return malloc_failed_flag;
}

void * PIOS_malloc(size_t size)
{
        void *buf = malloc(size);

        if (buf == NULL)
                malloc_failed_hook();

        return buf;
}

void * PIOS_malloc_no_dma(size_t size)
{
        return PIOS_malloc(size);
}

void PIOS_free(void * buf)
{
        free(buf);
}

void PIOS_heap_initialize_blocks(void)
{
}

size_t PIOS_heap_get_free_size(void)
{
        return 4096;
}

size_t PIOS_fastheap_get_free_size(void)
{
        return 0;
}