packetbuf.c File Reference

    Rime buffer (packetbuf) management

Author

Adam Dunkels adam@.nosp@m.sics.nosp@m..se

#include <string.h>
#include "contiki-net.h"
#include "net/packetbuf.h"
#include "net/rime/rime.h"

Macros
#define	_DEBUG_   0
#define	DEBUG_LEVEL   0
#define	PRINTF(...)

Functions
const linkaddr_t *	packetbuf_addr (uint8_t type)
packetbuf_attr_t	packetbuf_attr (uint8_t type)
void	packetbuf_attr_clear (void)
void	packetbuf_attr_copyfrom (struct packetbuf_attr *attrs, struct packetbuf_addr *addrs)
void	packetbuf_attr_copyto (struct packetbuf_attr *attrs, struct packetbuf_addr *addrs)
void	packetbuf_clear (void)
	Clear and reset the packetbuf. More...
void	packetbuf_clear_hdr (void)
	Clear and reset the header of the packetbuf. More...
void	packetbuf_compact (void)
	Compact the packetbuf. More...
int	packetbuf_copyfrom (const void *from, uint16_t len)
	Copy from external data into the packetbuf. More...
int	packetbuf_copyto (void *to)
	Copy the entire packetbuf to an external buffer. More...
int	packetbuf_copyto_hdr (uint8_t *to)
	Copy the header portion of the packetbuf to an external buffer. More...
uint16_t	packetbuf_datalen (void)
	Get the length of the data in the packetbuf. More...
void *	packetbuf_dataptr (void)
	Get a pointer to the data in the packetbuf. More...
void	packetbuf_hdr_remove (int size)
int	packetbuf_hdralloc (int size)
	Extend the header of the packetbuf, for outbound packets. More...
uint8_t	packetbuf_hdrlen (void)
	Get the length of the header in the packetbuf, for outbound packets. More...
void *	packetbuf_hdrptr (void)
	Get a pointer to the header in the packetbuf, for outbound packets. More...
int	packetbuf_hdrreduce (int size)
	Reduce the header in the packetbuf, for incoming packets. More...
int	packetbuf_is_reference (void)
	Check if the packetbuf references external data. More...
void	packetbuf_reference (void *ptr, uint16_t len)
	Point the packetbuf to external data. More...
void *	packetbuf_reference_ptr (void)
	Get a pointer to external data referenced by the packetbuf. More...
int	packetbuf_set_addr (uint8_t type, const linkaddr_t *addr)
int	packetbuf_set_attr (uint8_t type, const packetbuf_attr_t val)
void	packetbuf_set_datalen (uint16_t len)
	Set the length of the data in the packetbuf. More...
uint16_t	packetbuf_totlen (void)
	Get the total length of the header and data in the packetbuf. More...

Variables
static uint16_t	buflen
static uint16_t	bufptr
static uint8_t	hdrptr
static uint8_t *	packetbuf = (uint8_t *)packetbuf_aligned
struct packetbuf_addr	packetbuf_addrs [PACKETBUF_NUM_ADDRS]
static uint16_t	packetbuf_aligned [(PACKETBUF_SIZE+PACKETBUF_HDR_SIZE)/2+1]
struct packetbuf_attr	packetbuf_attrs [PACKETBUF_NUM_ATTRS]
static uint8_t *	packetbufptr