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/**
* @file
*
* @brief Greedy Allocate that Empties the Heap
* @ingroup MallocSupport
*/
/*
* Copyright (c) 2012 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "malloc_p.h"
#define SBRK_ALLOC_SIZE (128 * 1024UL * 1024UL)
void *rtems_heap_greedy_allocate(
const uintptr_t *block_sizes,
size_t block_count
)
{
Heap_Control *heap = RTEMS_Malloc_Heap;
void *opaque;
rtems_heap_sbrk_greedy_allocate( heap, SBRK_ALLOC_SIZE );
_RTEMS_Lock_allocator();
opaque = _Heap_Greedy_allocate( RTEMS_Malloc_Heap, block_sizes, block_count );
_RTEMS_Unlock_allocator();
return opaque;
}
void *rtems_heap_greedy_allocate_all_except_largest(
uintptr_t *allocatable_size
)
{
Heap_Control *heap = RTEMS_Malloc_Heap;
void *opaque;
rtems_heap_sbrk_greedy_allocate( heap, SBRK_ALLOC_SIZE );
_RTEMS_Lock_allocator();
opaque = _Heap_Greedy_allocate_all_except_largest(
heap,
allocatable_size
);
_RTEMS_Unlock_allocator();
return opaque;
}
void rtems_heap_greedy_free( void *opaque )
{
_RTEMS_Lock_allocator();
_Heap_Greedy_free( RTEMS_Malloc_Heap, opaque );
_RTEMS_Unlock_allocator();
}
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