pbuf.h File Reference

#include "lwip/opt.h"
#include "lwip/err.h"

Classes
struct	inet::tcp::pbuf

Namespaces
	inet
	Copyright (c) 2005 Jan Ringo�, www.ringos.cz.
	inet::tcp

Macros
#define	PBUF_TRANSPORT_HLEN   20
#define	PBUF_IP_HLEN   60
#define	PBUF_FLAG_PUSH   0x01U
	indicates this packet's data should be immediately passed to the application More...
#define	pbuf_init()

Enumerations
enum	inet::tcp::pbuf_layer { inet::tcp::PBUF_TRANSPORT, inet::tcp::PBUF_IP, inet::tcp::PBUF_LINK, inet::tcp::PBUF_RAW }
enum	inet::tcp::pbuf_type { inet::tcp::PBUF_RAM, inet::tcp::PBUF_ROM, inet::tcp::PBUF_REF, inet::tcp::PBUF_POOL }

Functions
struct pbuf *	inet::tcp::pbuf_alloc (pbuf_layer layer, u16_t length, pbuf_type type)
	Allocates a pbuf of the given type (possibly a chain for PBUF_POOL type). More...
void	inet::tcp::pbuf_realloc (struct pbuf *p, u16_t new_len)
	Shrink a pbuf chain to a desired length. More...
u8_t	inet::tcp::pbuf_header (struct pbuf *p, s16_t header_size_increment)
	Adjusts the payload pointer to hide or reveal headers in the payload. More...
void	inet::tcp::pbuf_ref (struct pbuf *p)
	Increment the reference count of the pbuf. More...
void	inet::tcp::pbuf_ref_chain (struct pbuf *p)
u8_t	inet::tcp::pbuf_free (struct pbuf *p)
	Dereference a pbuf chain or queue and deallocate any no-longer-used pbufs at the head of this chain or queue. More...
u8_t	inet::tcp::pbuf_clen (struct pbuf *p)
	Count number of pbufs in a chain. More...
void	inet::tcp::pbuf_cat (struct pbuf *h, struct pbuf *t)
	Concatenate two pbufs (each may be a pbuf chain) and take over the caller's reference of the tail pbuf. More...
void	inet::tcp::pbuf_chain (struct pbuf *h, struct pbuf *t)
	Chain two pbufs (or pbuf chains) together. More...
struct pbuf *	inet::tcp::pbuf_dechain (struct pbuf *p)
	Dechains the first pbuf from its succeeding pbufs in the chain. More...
err_t	inet::tcp::pbuf_copy (struct pbuf *p_to, struct pbuf *p_from)
	Create PBUF_RAM copies of pbufs. More...
u16_t	inet::tcp::pbuf_copy_partial (struct pbuf *buf, void *dataptr, u16_t len, u16_t offset)
	Copy (part of) the contents of a packet buffer to an application supplied buffer. More...
err_t	inet::tcp::pbuf_take (struct pbuf *buf, const void *dataptr, u16_t len)
	Copy application supplied data into a pbuf. More...
struct pbuf *	inet::tcp::pbuf_coalesce (struct pbuf *p, pbuf_layer layer)
	Creates a single pbuf out of a queue of pbufs. More...

Macro Definition Documentation

#define PBUF_FLAG_PUSH   0x01U

indicates this packet's data should be immediately passed to the application

#define pbuf_init

(

)

#define PBUF_IP_HLEN   60

Referenced by inet::tcp::pbuf_alloc().

#define PBUF_TRANSPORT_HLEN   20

Referenced by inet::tcp::pbuf_alloc().