netconn Struct Reference

A netconn descriptor.

#include <api.h>

Data Fields
sys_mbox_t	acceptmbox
	mbox where new connections are stored until processed by the application thread More...
netconn_callback	callback
	A callback function that is informed about events for this netconn. More...
struct api_msg_msg *	current_msg
	TCP: when data passed to netconn_write doesn't fit into the send buffer, this temporarily stores the message. More...
u8_t	flags
	flags holding more netconn-internal state, see NETCONN_FLAG_* defines More...
err_t	last_err
	the last error this netconn had More...
sys_sem_t	op_completed
	sem that is used to synchroneously execute functions in the core context More...
union {
struct ip_pcb *   ip
struct raw_pcb *   raw
struct tcp_pcb *   tcp
struct udp_pcb *   udp
}	pcb
	the lwIP internal protocol control block More...
sys_mbox_t	recvmbox
	mbox where received packets are stored until they are fetched by the netconn application thread (can grow quite big) More...
int	socket
	only used for socket layer More...
enum netconn_state	state
	current state of the netconn More...
enum netconn_type	type
	type of the netconn (TCP, UDP or RAW) More...
size_t	write_offset
	TCP: when data passed to netconn_write doesn't fit into the send buffer, this temporarily stores how much is already sent. More...

sys_mbox_t netconn::acceptmbox

mbox where new connections are stored until processed by the application thread

Referenced by accept_function(), do_listen(), err_tcp(), netconn_accept(), netconn_alloc(), netconn_drain(), and netconn_free().

netconn_callback netconn::callback

A callback function that is informed about events for this netconn.

Referenced by accept_function(), lwip_accept(), and netconn_alloc().

struct api_msg_msg* netconn::current_msg

TCP: when data passed to netconn_write doesn't fit into the send buffer, this temporarily stores the message.

Also used during connect and close.

Referenced by do_close(), do_close_internal(), do_connect(), do_connected(), do_delconn(), do_write(), do_writemore(), err_tcp(), and netconn_alloc().

u8_t netconn::flags

flags holding more netconn-internal state, see NETCONN_FLAG_* defines

Referenced by do_write(), do_writemore(), netconn_alloc(), poll_tcp(), and sent_tcp().

struct ip_pcb* netconn::ip

Referenced by do_getaddr(), lwip_getsockopt_internal(), and lwip_setsockopt_internal().

err_t netconn::last_err

the last error this netconn had

Referenced by accept_function(), do_bind(), do_listen(), do_send(), do_write(), err_tcp(), lwip_getsockopt_internal(), netconn_accept(), netconn_alloc(), and netconn_recv_data().

sys_sem_t netconn::op_completed

sem that is used to synchroneously execute functions in the core context

Referenced by do_close(), do_close_internal(), do_connect(), do_connected(), do_delconn(), do_write(), do_writemore(), err_tcp(), lwip_getsockopt(), lwip_getsockopt_internal(), lwip_setsockopt(), lwip_setsockopt_internal(), netconn_alloc(), netconn_free(), and tcpip_apimsg().

union { ... } netconn::pcb

the lwIP internal protocol control block

Referenced by accept_function(), do_bind(), do_close(), do_close_internal(), do_connect(), do_delconn(), do_disconnect(), do_getaddr(), do_listen(), do_newconn(), do_recv(), do_send(), do_write(), do_writemore(), err_tcp(), lwip_getsockopt(), lwip_getsockopt_internal(), lwip_setsockopt(), lwip_setsockopt_internal(), netconn_alloc(), netconn_drain(), netconn_free(), pcb_new(), poll_tcp(), recv_tcp(), sent_tcp(), and setup_tcp().

struct raw_pcb* netconn::raw

Referenced by do_bind(), do_connect(), do_delconn(), do_getaddr(), do_send(), and pcb_new().

sys_mbox_t netconn::recvmbox

mbox where received packets are stored until they are fetched by the netconn application thread (can grow quite big)

Referenced by accept_function(), do_listen(), err_tcp(), netconn_alloc(), netconn_drain(), netconn_free(), netconn_recv(), netconn_recv_data(), and recv_tcp().

int netconn::socket

only used for socket layer

Referenced by event_callback(), lwip_accept(), lwip_socket(), and netconn_alloc().

enum netconn_state netconn::state

current state of the netconn

Referenced by do_close(), do_close_internal(), do_connect(), do_connected(), do_delconn(), do_listen(), do_write(), do_writemore(), err_tcp(), netconn_alloc(), poll_tcp(), and sent_tcp().

struct tcp_pcb* netconn::tcp

Referenced by accept_function(), do_bind(), do_close(), do_close_internal(), do_connect(), do_delconn(), do_getaddr(), do_listen(), do_newconn(), do_recv(), do_send(), do_write(), do_writemore(), err_tcp(), lwip_getsockopt_internal(), lwip_setsockopt_internal(), netconn_alloc(), netconn_drain(), netconn_free(), pcb_new(), poll_tcp(), recv_tcp(), sent_tcp(), and setup_tcp().

enum netconn_type netconn::type

type of the netconn (TCP, UDP or RAW)

Referenced by accept_function(), alloc_socket(), do_bind(), do_close(), do_close_internal(), do_connect(), do_connected(), do_delconn(), do_disconnect(), do_getaddr(), do_listen(), do_recv(), do_send(), do_write(), lwip_getsockopt(), lwip_getsockopt_internal(), lwip_send(), lwip_setsockopt(), netconn_alloc(), netconn_drain(), netconn_recv(), netconn_recv_data(), netconn_recved(), netconn_write(), and pcb_new().

struct udp_pcb* netconn::udp

Referenced by do_bind(), do_connect(), do_delconn(), do_disconnect(), do_getaddr(), do_send(), lwip_getsockopt(), lwip_getsockopt_internal(), lwip_setsockopt(), lwip_setsockopt_internal(), and pcb_new().

size_t netconn::write_offset

TCP: when data passed to netconn_write doesn't fit into the send buffer, this temporarily stores how much is already sent.

Referenced by do_close(), do_delconn(), do_write(), do_writemore(), and netconn_alloc().