LANGameFinderAndAnnouncer::LANGameFinderAndAnnouncer()
: serverPort(0), lastAnnounce(0) {
announceSocket = enet_socket_create(ENET_SOCKET_TYPE_DATAGRAM);
if(announceSocket == ENET_SOCKET_NULL) {
throw std::runtime_error("LANGameFinderAndAnnouncer: Creating socket failed!");
}
if(enet_socket_set_option(announceSocket, ENET_SOCKOPT_REUSEADDR, 1) < 0) {
enet_socket_destroy(announceSocket);
throw std::runtime_error("LANGameFinderAndAnnouncer: Setting socket option 'ENET_SOCKOPT_REUSEADDR' failed!");
}
if(enet_socket_set_option(announceSocket, ENET_SOCKOPT_NONBLOCK, 1) < 0) {
enet_socket_destroy(announceSocket);
throw std::runtime_error("LANGameFinderAndAnnouncer: Setting socket option 'ENET_SOCKOPT_NONBLOCK' failed!");
}
if(enet_socket_set_option(announceSocket, ENET_SOCKOPT_BROADCAST, 1) < 0) {
enet_socket_destroy(announceSocket);
throw std::runtime_error("LANGameFinderAndAnnouncer: Setting socket option 'ENET_SOCKOPT_BROADCAST' failed!");
}
ENetAddress address;
address.host = ENET_HOST_ANY;
address.port = LANGAME_ANNOUNCER_PORT;
if(enet_socket_bind(announceSocket, &address) < 0) {
enet_socket_destroy(announceSocket);
throw std::runtime_error("LANGameFinderAndAnnouncer: Binding socket to address failed!");
}
}
bool BroadcastHost::init(unsigned short port)
{
// Create raw socket
// FIXME: This needs a really recent version of enet afaik.
ENetAddress bcaddr;
bcaddr.host = ENET_HOST_ANY;
bcaddr.port = port;
bcastsocket = enet_socket_create(ENET_SOCKET_TYPE_DATAGRAM);
if (bcastsocket == -1)
std::cout << "No socket." << std::endl;
if (enet_socket_set_option(bcastsocket, ENET_SOCKOPT_REUSEADDR, 1))
std::cout << "enet_socket_set_option1" << std::endl;
if (enet_socket_bind(bcastsocket, &bcaddr))
std::cout << "enet_socket_bind" << std::endl;
if (enet_socket_set_option(bcastsocket, ENET_SOCKOPT_NONBLOCK, 1))
std::cout << "enet_socket_set_option2" << std::endl;
std::cout << "Started broadcast host (" << port << ")." << std::endl;
return true;
}
bool setuppingsocket(ENetAddress *address)
{
if(pingsocket != ENET_SOCKET_NULL) return true;
pingsocket = enet_socket_create(ENET_SOCKET_TYPE_DATAGRAM);
if(pingsocket == ENET_SOCKET_NULL) return false;
if(address && enet_socket_bind(pingsocket, address) < 0) return false;
enet_socket_set_option(pingsocket, ENET_SOCKOPT_NONBLOCK, 1);
return true;
}
void servermsinit(const char *master, char *sdesc, bool listen) {
const char *mid = strstr(master, "/");
if (!mid)
mid = master;
strcpy_s(masterpath, mid);
strn0cpy(masterbase, master, mid - master + 1);
strcpy_s(serverdesc, sdesc);
if (listen) {
ENetAddress address = { ENET_HOST_ANY, CUBE_SERVINFO_PORT };
pongsock = enet_socket_create(ENET_SOCKET_TYPE_DATAGRAM);
enet_socket_bind(pongsock, &address);
if (pongsock == ENET_SOCKET_NULL)
fatal("could not create server info socket\n");
};
}
void setupmaster()
{
if(masterserver)
{
conoutf("loading master (%s:%d)..", *masterip ? masterip : "*", masterport);
ENetAddress address = { ENET_HOST_ANY, enet_uint16(masterport) };
if(*masterip && enet_address_set_host(&address, masterip) < 0) fatal("failed to resolve master address: %s", masterip);
if((mastersocket = enet_socket_create(ENET_SOCKET_TYPE_STREAM)) == ENET_SOCKET_NULL) fatal("failed to create master server socket");
if(enet_socket_set_option(mastersocket, ENET_SOCKOPT_REUSEADDR, 1) < 0) fatal("failed to set master server socket option");
if(enet_socket_bind(mastersocket, &address) < 0) fatal("failed to bind master server socket");
if(enet_socket_listen(mastersocket, -1) < 0) fatal("failed to listen on master server socket");
if(enet_socket_set_option(mastersocket, ENET_SOCKOPT_NONBLOCK, 1) < 0) fatal("failed to make master server socket non-blocking");
if(!setuppingsocket(&address)) fatal("failed to create ping socket");
starttime = clocktime;
conoutf("master server started on %s:[%d]", *masterip ? masterip : "localhost", masterport);
}
}
/** Creates a host for communicating to peers.
@param address the address at which other peers may connect to this host. If NULL, then no peers may connect to the host.
@param peerCount the maximum number of peers that should be allocated for the host.
@param incomingBandwidth downstream bandwidth of the host in bytes/second; if 0, ENet will assume unlimited bandwidth.
@param outgoingBandwidth upstream bandwidth of the host in bytes/second; if 0, ENet will assume unlimited bandwidth.
@returns the host on success and NULL on failure
@remarks ENet will strategically drop packets on specific sides of a connection between hosts
to ensure the host's bandwidth is not overwhelmed. The bandwidth parameters also determine
the window size of a connection which limits the amount of reliable packets that may be in transit
at any given time.
*/
ENetHost *
enet_host_create (const ENetAddress * address, size_t peerCount, enet_uint32 incomingBandwidth, enet_uint32 outgoingBandwidth)
{
ENetHost * host = (ENetHost *) enet_malloc (sizeof (ENetHost));
ENetPeer * currentPeer;
if (peerCount > ENET_PROTOCOL_MAXIMUM_PEER_ID)
return NULL;
host -> peers = (ENetPeer *) enet_malloc (peerCount * sizeof (ENetPeer));
memset (host -> peers, 0, peerCount * sizeof (ENetPeer));
host -> socket = enet_socket_create (ENET_SOCKET_TYPE_DATAGRAM);
if (host -> socket == ENET_SOCKET_NULL || (address != NULL && enet_socket_bind (host -> socket, address) < 0))
{
if (host -> socket != ENET_SOCKET_NULL)
enet_socket_destroy (host -> socket);
enet_free (host -> peers);
enet_free (host);
return NULL;
}
enet_socket_set_option (host -> socket, ENET_SOCKOPT_NONBLOCK, 1);
enet_socket_set_option (host -> socket, ENET_SOCKOPT_BROADCAST, 1);
enet_socket_set_option (host -> socket, ENET_SOCKOPT_RCVBUF, ENET_HOST_RECEIVE_BUFFER_SIZE);
enet_socket_set_option (host -> socket, ENET_SOCKOPT_SNDBUF, ENET_HOST_SEND_BUFFER_SIZE);
if (address != NULL)
host -> address = * address;
host -> incomingBandwidth = incomingBandwidth;
host -> outgoingBandwidth = outgoingBandwidth;
host -> bandwidthThrottleEpoch = 0;
host -> recalculateBandwidthLimits = 0;
host -> mtu = ENET_HOST_DEFAULT_MTU;
host -> peerCount = peerCount;
host -> lastServicedPeer = host -> peers;
host -> commandCount = 0;
host -> bufferCount = 0;
host -> receivedAddress.host = ENET_HOST_ANY;
host -> receivedAddress.port = 0;
host -> receivedDataLength = 0;
for (currentPeer = host -> peers;
currentPeer < & host -> peers [host -> peerCount];
++ currentPeer)
{
currentPeer -> host = host;
currentPeer -> incomingPeerID = currentPeer - host -> peers;
currentPeer -> data = NULL;
enet_list_clear (& currentPeer -> acknowledgements);
enet_list_clear (& currentPeer -> sentReliableCommands);
enet_list_clear (& currentPeer -> sentUnreliableCommands);
enet_list_clear (& currentPeer -> outgoingReliableCommands);
enet_list_clear (& currentPeer -> outgoingUnreliableCommands);
enet_peer_reset (currentPeer);
}
return host;
}