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extern "C" {
#include "types.h"
#include "w5100.h"
#include "socket.h"
}
#include "Ethernet.h"
#include "Client.h"
#include "Server.h"
Server::Server(uint16_t port)
{
_port = port;
}
void Server::begin()
{
for (int sock = 0; sock < MAX_SOCK_NUM; sock++) {
Client client(sock);
if (client.status() == SOCK_CLOSED) {
socket(sock, Sn_MR_TCP, _port, 0);
listen(sock);
EthernetClass::_server_port[sock] = _port;
break;
}
}
}
void Server::accept()
{
int listening = 0;
for (int sock = 0; sock < MAX_SOCK_NUM; sock++) {
Client client(sock);
if (EthernetClass::_server_port[sock] == _port) {
if (client.status() == SOCK_LISTEN) {
listening = 1;
} else if (client.status() == SOCK_CLOSE_WAIT && !client.available()) {
client.stop();
}
}
}
if (!listening) {
begin();
}
}
Client Server::available()
{
accept();
for (int sock = 0; sock < MAX_SOCK_NUM; sock++) {
Client client(sock);
if (EthernetClass::_server_port[sock] == _port &&
client.status() == SOCK_ESTABLISHED) {
if (client.available()) {
// XXX: don't always pick the lowest numbered socket.
return client;
}
}
}
return Client(255);
}
void Server::write(uint8_t b)
{
accept();
for (int sock = 0; sock < MAX_SOCK_NUM; sock++) {
Client client(sock);
if (EthernetClass::_server_port[sock] == _port &&
client.status() == SOCK_ESTABLISHED) {
client.write(b);
}
}
}
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