heap.c File Reference

#include <cfg/os.h>
#include <sys/heap.h>
#include <string.h>
#include <stdint.h>
#include <stdio.h>

Include dependency graph for heap.c:

Go to the source code of this file.

Defines
#define	NUTMEM_GUARD_BYTES   0
#define	NUT_HEAP_OVERHEAD   (sizeof(HEAPNODE) - sizeof(HEAPNODE *))
	Number of bytes used for management information.
#define	NUTMEM_HEAPNODE_MIN   (sizeof(HEAPNODE) + (2 * NUTMEM_GUARD_BYTES))
	Minimum size of a node.
Functions
void *	NutHeapRootAlloc (HEAPNODE **root, size_t size)
	Allocate a block from heap memory.
void *	NutHeapRootAllocClear (HEAPNODE **root, size_t size)
	Allocate an initialized block from heap memory.
int	NutHeapRootFree (HEAPNODE **root, void *block)
	Return a block to heap memory.
void	NutHeapRootAdd (HEAPNODE **root, void *addr, size_t size)
	Add a new memory region to the heap.
size_t	NutHeapRootAvailable (HEAPNODE **root)
	Return the total number of bytes available.
size_t	NutHeapRootRegionAvailable (HEAPNODE **root)
	Return the size of the largest block available.
void *	NutHeapRootRealloc (HEAPNODE **root, void *block, size_t size)
	Change the size of an allocated memory block.
int	NutHeapCheck (void)
	Check consistency of heap.
void	NutHeapDump (void *stream)
	Dump heap memory to a given stream.
Variables
HEAPNODE *	heapFreeList
	List of free nodes in normal memory.