connection accept_connection()
{
if(!server_socket) {
return 0;
}
// A connection isn't considered 'accepted' until it has sent its initial handshake.
// The initial handshake is a 4 byte value, which is 0 for a new connection,
// or the handle of the connection if it's trying to recover a lost connection.
/**
* A list of all the sockets which have connected,
* but haven't had their initial handshake received.
*/
static std::vector<TCPsocket> pending_sockets;
static SDLNet_SocketSet pending_socket_set = 0;
const TCPsocket sock = SDLNet_TCP_Accept(server_socket);
if(sock) {
DBG_NW << "received connection. Pending handshake...\n";
if(pending_socket_set == 0) {
pending_socket_set = SDLNet_AllocSocketSet(32);
}
if(pending_socket_set != 0) {
int res = SDLNet_TCP_AddSocket(pending_socket_set,sock);
if (res != -1) {
pending_sockets.push_back(sock);
} else {
ERR_NW << "Pending socket set is full! Disconnecting " << sock << " connection\n";
ERR_NW << "SDLNet_GetError() is " << SDLNet_GetError() << "\n";
SDLNet_TCP_Close(sock);
}
} else {
ERR_NW << "Error in SDLNet_AllocSocketSet\n";
}
}
if(pending_socket_set == 0) {
return 0;
}
const int set_res = SDLNet_CheckSockets(pending_socket_set,0);
if(set_res <= 0) {
return 0;
}
return accept_connection_pending(pending_sockets, pending_socket_set);
}
connection accept_connection()
{
if(!server_socket) {
return 0;
}
// A connection isn't considered 'accepted' until it has sent its initial handshake.
// The initial handshake is a 4 byte value, which is 0 for a new connection,
// or the handle of the connection if it's trying to recover a lost connection.
/**
* A list of all the sockets which have connected,
* but haven't had their initial handshake received.
*/
static std::vector<TCPsocket> pending_sockets;
static SDLNet_SocketSet pending_socket_set = 0;
const TCPsocket sock = SDLNet_TCP_Accept(server_socket);
if(sock) {
#if !defined(_WIN32) && !defined(__WIN32__) && !defined (WIN32)
_TCPsocket* raw_sock = reinterpret_cast<_TCPsocket*>(sock);
int fd_flags = fcntl(raw_sock->channel, F_GETFD, 0);
fd_flags |= FD_CLOEXEC;
if (fcntl(raw_sock->channel, F_SETFD, fd_flags) == -1) {
WRN_NW << "could not make socket " << sock << " close-on-exec: " << strerror(errno);
} else {
DBG_NW << "made socket " << sock << " close-on-exec\n";
}
#endif
DBG_NW << "received connection. Pending handshake...\n";
if(pending_socket_set == 0) {
pending_socket_set = SDLNet_AllocSocketSet(32);
}
if(pending_socket_set != 0) {
int res = SDLNet_TCP_AddSocket(pending_socket_set,sock);
if (res != -1) {
pending_sockets.push_back(sock);
} else {
ERR_NW << "Pending socket set is full! Disconnecting " << sock << " connection" << std::endl;
ERR_NW << "SDLNet_GetError(): " << SDLNet_GetError() << std::endl;
SDLNet_TCP_Close(sock);
}
} else {
ERR_NW << "Error in SDLNet_AllocSocketSet" << std::endl;
}
}
if(pending_socket_set == 0) {
return 0;
}
const int set_res = SDLNet_CheckSockets(pending_socket_set,0);
if(set_res <= 0) {
return 0;
}
return accept_connection_pending(pending_sockets, pending_socket_set);
}
