Rod Coleman / lwip-mbed-2010

Port of LwIP performed by Ralf in 2010. Not recommended for use with recent mbed libraries, but good demos of raw LwIP possible

Dependents:   LwIP_raw_API_serverExample tiny-dtls

Core/TCPConnection.cpp@0:0791c1fece8e, 2012-09-18 (annotated)

Committer:
RodColeman
Date:
Tue Sep 18 14:41:24 2012 +0000
Revision:
0:0791c1fece8e
[mbed] converted /Eth_TCP_Wei_Server/lwip

Who changed what in which revision?

UserRevisionLine numberNew contents of line
RodColeman 0:0791c1fece8e 1 #include "lwip/arch.h"
RodColeman 0:0791c1fece8e 2
RodColeman 0:0791c1fece8e 3 #include "dns.h"
RodColeman 0:0791c1fece8e 4
RodColeman 0:0791c1fece8e 5 #include "TCPConnection.h"
RodColeman 0:0791c1fece8e 6 #include "TCPListener.h"
RodColeman 0:0791c1fece8e 7 #include "NetServer.h"
RodColeman 0:0791c1fece8e 8
RodColeman 0:0791c1fece8e 9 using namespace std;
RodColeman 0:0791c1fece8e 10 using namespace mbed;
RodColeman 0:0791c1fece8e 11
RodColeman 0:0791c1fece8e 12 void TCPConnection::dnsreply_callback(const char *name, struct ip_addr *ipaddr, void *arg) {
RodColeman 0:0791c1fece8e 13 TCPConnection *connection = static_cast<TCPConnection *>(arg);
RodColeman 0:0791c1fece8e 14 if(connection) {
RodColeman 0:0791c1fece8e 15 (connection->dnsreply)(name, ipaddr);
RodColeman 0:0791c1fece8e 16 }
RodColeman 0:0791c1fece8e 17 }
RodColeman 0:0791c1fece8e 18
RodColeman 0:0791c1fece8e 19 err_t TCPConnection::connected_callback(void *arg, struct tcp_pcb *pcb, err_t err) {
RodColeman 0:0791c1fece8e 20 TCPConnection *connection = static_cast<TCPConnection *>(arg);
RodColeman 0:0791c1fece8e 21 LWIP_UNUSED_ARG(pcb);
RodColeman 0:0791c1fece8e 22 if(connection) {
RodColeman 0:0791c1fece8e 23 return (connection->connected)(err);
RodColeman 0:0791c1fece8e 24 }
RodColeman 0:0791c1fece8e 25 return ERR_OK;
RodColeman 0:0791c1fece8e 26 }
RodColeman 0:0791c1fece8e 27
RodColeman 0:0791c1fece8e 28 err_t TCPConnection::sent_callback(void *arg, struct tcp_pcb *pcb, u16_t space) {
RodColeman 0:0791c1fece8e 29 TCPConnection *connection = static_cast<TCPConnection *>(arg);
RodColeman 0:0791c1fece8e 30 LWIP_UNUSED_ARG(pcb);
RodColeman 0:0791c1fece8e 31 if(connection) {
RodColeman 0:0791c1fece8e 32 return (connection->sent)(space);
RodColeman 0:0791c1fece8e 33 }
RodColeman 0:0791c1fece8e 34 return ERR_OK;
RodColeman 0:0791c1fece8e 35 }
RodColeman 0:0791c1fece8e 36
RodColeman 0:0791c1fece8e 37 err_t TCPConnection::recv_callback(void *arg, struct tcp_pcb *pcb, struct pbuf *p, err_t err) {
RodColeman 0:0791c1fece8e 38 TCPConnection *connection = static_cast<TCPConnection *>(arg);
RodColeman 0:0791c1fece8e 39 LWIP_UNUSED_ARG(pcb);
RodColeman 0:0791c1fece8e 40 if(connection) {
RodColeman 0:0791c1fece8e 41 return (connection->recv)(p, err);
RodColeman 0:0791c1fece8e 42 }
RodColeman 0:0791c1fece8e 43 return ERR_OK;
RodColeman 0:0791c1fece8e 44 }
RodColeman 0:0791c1fece8e 45
RodColeman 0:0791c1fece8e 46 err_t TCPConnection::poll_callback(void *arg, struct tcp_pcb *pcb) {
RodColeman 0:0791c1fece8e 47 TCPConnection *connection = static_cast<TCPConnection *>(arg);
RodColeman 0:0791c1fece8e 48 LWIP_UNUSED_ARG(pcb);
RodColeman 0:0791c1fece8e 49 if(connection) {
RodColeman 0:0791c1fece8e 50 return (connection->poll)();
RodColeman 0:0791c1fece8e 51 }
RodColeman 0:0791c1fece8e 52 return ERR_OK;
RodColeman 0:0791c1fece8e 53 }
RodColeman 0:0791c1fece8e 54
RodColeman 0:0791c1fece8e 55 void TCPConnection::error_callback(void *arg, err_t erra) {
RodColeman 0:0791c1fece8e 56 TCPConnection *connection = static_cast<TCPConnection *>(arg);
RodColeman 0:0791c1fece8e 57 if(connection) {
RodColeman 0:0791c1fece8e 58 (connection->err)(erra);
RodColeman 0:0791c1fece8e 59 }
RodColeman 0:0791c1fece8e 60 }
RodColeman 0:0791c1fece8e 61
RodColeman 0:0791c1fece8e 62 TCPConnection::TCPConnection() : _parent(NULL), _port(0) {
RodColeman 0:0791c1fece8e 63 }
RodColeman 0:0791c1fece8e 64
RodColeman 0:0791c1fece8e 65 TCPConnection::TCPConnection(struct ip_addr ip, u16_t port) : _parent(NULL) {
RodColeman 0:0791c1fece8e 66 this->_ipaddr = ip;
RodColeman 0:0791c1fece8e 67 this->_port = port;
RodColeman 0:0791c1fece8e 68 }
RodColeman 0:0791c1fece8e 69
RodColeman 0:0791c1fece8e 70 TCPConnection::TCPConnection(TCPListener *parent, struct tcp_pcb *pcb)
RodColeman 0:0791c1fece8e 71 : TCPItem(pcb), _parent(parent), _ipaddr(pcb->remote_ip), _port(pcb->remote_port) {
RodColeman 0:0791c1fece8e 72 tcp_arg(this->_pcb, static_cast<void *>(this));
RodColeman 0:0791c1fece8e 73 connected(ERR_OK);
RodColeman 0:0791c1fece8e 74 }
RodColeman 0:0791c1fece8e 75
RodColeman 0:0791c1fece8e 76 TCPConnection::~TCPConnection() {
RodColeman 0:0791c1fece8e 77 }
RodColeman 0:0791c1fece8e 78
RodColeman 0:0791c1fece8e 79 err_t TCPConnection::write(void *msg, u16_t len, u8_t flags) const {
RodColeman 0:0791c1fece8e 80 return tcp_write(this->_pcb, msg, len, flags);
RodColeman 0:0791c1fece8e 81 }
RodColeman 0:0791c1fece8e 82
RodColeman 0:0791c1fece8e 83 void TCPConnection::recved(u32_t len) const {
RodColeman 0:0791c1fece8e 84 tcp_recved(this->_pcb, len);
RodColeman 0:0791c1fece8e 85 }
RodColeman 0:0791c1fece8e 86
RodColeman 0:0791c1fece8e 87 err_t TCPConnection::connected(err_t err) {
RodColeman 0:0791c1fece8e 88 tcp_recv(this->_pcb, TCPConnection::recv_callback);
RodColeman 0:0791c1fece8e 89 tcp_sent(this->_pcb, TCPConnection::sent_callback);
RodColeman 0:0791c1fece8e 90 tcp_poll(this->_pcb, TCPConnection::poll_callback, 1); // addjust time (in twice a sec)
RodColeman 0:0791c1fece8e 91 tcp_err(this->_pcb, TCPConnection::error_callback);
RodColeman 0:0791c1fece8e 92 return ERR_OK;
RodColeman 0:0791c1fece8e 93 }
RodColeman 0:0791c1fece8e 94
RodColeman 0:0791c1fece8e 95 void TCPConnection::connect() {
RodColeman 0:0791c1fece8e 96 NetServer::ready();
RodColeman 0:0791c1fece8e 97 open();
RodColeman 0:0791c1fece8e 98 tcp_connect(this->_pcb, &this->_ipaddr, this->_port, TCPConnection::connected_callback);
RodColeman 0:0791c1fece8e 99 }
RodColeman 0:0791c1fece8e 100
RodColeman 0:0791c1fece8e 101 err_t TCPConnection::dnsrequest(const char *hostname, struct ip_addr *addr) const {
RodColeman 0:0791c1fece8e 102 return dns_gethostbyname(hostname, addr, TCPConnection::dnsreply_callback, (void *)this);
RodColeman 0:0791c1fece8e 103 }