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extern "C" {
#include "types.h"
#include "w5100.h"
#include "socket.h"
}
#include "Ethernet.h"
#include "Client.h"
#include "Server.h"
uint16_t Client::_srcport = 0;
Client::Client(uint8_t sock) {
_sock = sock;
}
Client::Client(uint8_t *ip, uint16_t port) {
_ip = ip;
_port = port;
}
uint8_t Client::connect() {
_sock = 255;
for (int i = 0; i < MAX_SOCK_NUM; i++) {
if (getSn_SR(i) == SOCK_CLOSED) {
_sock = i;
}
}
if (_sock == 255)
return 0;
_srcport++;
// XXX: what port should we connect from?
socket(_sock, Sn_MR_TCP, _port, 1024 + _srcport);
if (!::connect(_sock, _ip, _port))
return 0;
while (status() != SOCK_ESTABLISHED) {
if (status() == SOCK_CLOSED)
return 0;
}
return 1;
}
void Client::write(uint8_t b) {
send(_sock, &b, 1);
}
int Client::available() {
return getSn_RX_RSR(_sock);
}
int Client::read() {
uint8_t b;
if (!available())
return -1;
recv(_sock, &b, 1);
return b;
}
void Client::flush() {
while (available())
read();
}
void Client::stop() {
close(_sock);
disconnect(_sock);
EthernetClass::_server_port[_sock] = 0;
}
uint8_t Client::connected() {
uint8_t s = status();
return !(s == SOCK_LISTEN || s == SOCK_CLOSED || (s == SOCK_CLOSE_WAIT && !available()));
}
uint8_t Client::status() {
return getSn_SR(_sock);
}
// the next three functions are a hack so we can compare the client returned
// by Server::available() to null, or use it as the condition in an
// if-statement. this lets us stay compatible with the Processing network
// library.
uint8_t Client::operator==(int p) {
return _sock == 255;
}
uint8_t Client::operator!=(int p) {
return _sock != 255;
}
Client::operator bool() {
return _sock != 255;
}
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