static int tcp_selectport(uint16_t portno)
#endif
{
if (portno == 0)
{
/* No local port assigned. Loop until we find a valid listen port number
* that is not being used by any other connection. NOTE the following loop
* is assumed to terminate but could not if all 32000-4096+1 ports are
* in used (unlikely).
*/
do
{
/* Guess that the next available port number will be the one after
* the last port number assigned.
*/
portno = ++g_last_tcp_port;
/* Make sure that the port number is within range */
if (g_last_tcp_port >= 32000)
{
g_last_tcp_port = 4096;
}
}
#ifdef CONFIG_NETDEV_MULTINIC
while (tcp_listener(domain, ipaddr, htons(g_last_tcp_port)));
#else
while (tcp_listener(htons(g_last_tcp_port)));
#endif
}
else
{
/* A port number has been supplied. Verify that no other TCP/IP
* connection is using this local port.
*/
#ifdef CONFIG_NETDEV_MULTINIC
if (tcp_listener(domain, ipaddr, portno))
#else
if (tcp_listener(portno))
#endif
{
/* It is in use... return EADDRINUSE */
return -EADDRINUSE;
}
}
/* Return the selected or verified port number (host byte order) */
return portno;
}
/* main program, just start listening and answering queries */
int main(int argc, char *argv[])
{
int port = TSERVER_PORT;
extern char *optarg;
int opt;
while ((opt=getopt(argc, argv, "p:")) != -1) {
switch (opt) {
case 'p':
port = atoi(optarg);
break;
}
}
tcp_listener(port, run_webserver);
return 0;
}
int main(int argc, char **argv)
{
#ifdef WIN32
WSADATA wsa_data;
WSAStartup(0x0201, &wsa_data);
#endif
try
{
SimpleEventLoop loop;
//1. listen on PORT
HelloWorldListener tcp_listener( &loop);
tcp_listener.start_listen_on_tcp( CString("0.0.0.0:%d", PORT).c_str() );
//2. also we handle ctrl-C
QuitSignalHandler control_c_handler(&loop);
control_c_handler.start_handle_signal( SIGINT );
//3. also listen on a unix domain socket
HelloWorldListener un_listener( &loop);
un_listener.start_listen_on_un( ".haha" );
//4. the main loop
loop.run();
printf("done\n");
}
catch (std::exception& ex)
{
LOG_ERROR("Exception in main(): %s\n", ex.what());
return 1;
}
catch (...)
{
LOG_ERROR("Unknown exception in main()\n");
return 1;
}
return 0;
}
