mem.h File Reference

#include <stdlib.h>

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Enumerations
enum	coap_memory_tag_t {   COAP_STRING, COAP_ATTRIBUTE_NAME, COAP_ATTRIBUTE_VALUE, COAP_PACKET,   COAP_NODE, COAP_CONTEXT, COAP_ENDPOINT, COAP_PDU,   COAP_PDU_BUF, COAP_RESOURCE, COAP_RESOURCEATTR }
	Type specifiers for coap_malloc_type(). More...

Functions
void	coap_memory_init (void)
	Initializes libcoap's memory management. More...
void *	coap_malloc_type (coap_memory_tag_t type, size_t size)
	Allocates a chunk of size bytes and returns a pointer to the newly allocated memory. More...
void	coap_free_type (coap_memory_tag_t type, void *p)
	Releases the memory that was allocated by coap_malloc_type(). More...
static void *	coap_malloc (size_t size)
	Wrapper function to coap_malloc_type() for backwards compatibility. More...
static void	coap_free (void *object)
	Wrapper function to coap_free_type() for backwards compatibility. More...

Enumeration Type Documentation

coap_memory_tag_t

enum coap_memory_tag_t

Type specifiers for coap_malloc_type().

Memory objects can be typed to facilitate arrays of type objects to be used instead of dynamic memory management on constrained devices.

Enumerator
COAP_STRING
COAP_ATTRIBUTE_NAME
COAP_ATTRIBUTE_VALUE
COAP_PACKET
COAP_NODE
COAP_CONTEXT
COAP_ENDPOINT
COAP_PDU
COAP_PDU_BUF
COAP_RESOURCE
COAP_RESOURCEATTR

Definition at line 29 of file mem.h.

Function Documentation

coap_free()

static void coap_free ( void *  object )

inlinestatic

Wrapper function to coap_free_type() for backwards compatibility.

Definition at line 77 of file mem.h.

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coap_free_type()

void coap_free_type	(	coap_memory_tag_t	type,
		void *	p
	)

Releases the memory that was allocated by coap_malloc_type().

The type tag type must be the same that was used for allocating the object pointed to by .

Parameters

type	The type of the object to release.
p	A pointer to memory that was allocated by coap_malloc_type().

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coap_malloc()

static void* coap_malloc ( size_t  size )

inlinestatic

Wrapper function to coap_malloc_type() for backwards compatibility.

Definition at line 70 of file mem.h.

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coap_malloc_type()

void* coap_malloc_type	(	coap_memory_tag_t	type,
		size_t	size
	)

Allocates a chunk of size bytes and returns a pointer to the newly allocated memory.

The type is used to select the appropriate storage container on constrained devices. The storage allocated by coap_malloc_type() must be released with coap_free_type().

Parameters

type	The type of object to be stored.
size	The number of bytes requested.

Returns

A pointer to the allocated storage or NULL on error.

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coap_memory_init()

void coap_memory_init

(

void

)

Initializes libcoap's memory management.

This function must be called once before coap_malloc() can be used on constrained devices.

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