/**
* Opens a server TCP connection to clients. Creates, binds, and listens
*
* @param port local TCP port to listen on
* @param backlog listen backlog.
* @return a native handle to the network connection.
* @throws IOException
*/
public int openServer(int port, int backlog) throws IOException {
int fd = -1;
fd = sockets.socket(Socket.AF_INET, Socket.SOCK_STREAM, 0);
if (DEBUG) {
System.err.println("Socket.socket() = " + fd);
}
if (fd < 0) {
throw newError(fd, "socket create");
}
set_blocking_flags(fd, /*is_blocking*/ false);
setSockOpt(fd, Socket.SO_REUSEADDR, 1);
setSockOpt(fd, Socket.IPPROTO_TCP, Socket.TCP_NODELAY, 1);
Socket.sockaddr_in local_sin = new Socket.sockaddr_in();
local_sin.sin_family = Socket.AF_INET;
local_sin.sin_port = Inet.htons((short) port);
local_sin.sin_addr = Socket.INADDR_ANY;
if (DEBUG) {
System.err.println("Socket.bind(" + fd + ", " + local_sin + ")");
}
if (sockets.bind(fd, local_sin, local_sin.size()) < 0) {
throw newError(fd, "bind");
}
if (sockets.listen(fd, backlog) < 0) {
throw newError(fd, "listen");
}
return fd;
}
