+ socklen_t uslen;*/ // length of our port number
+
+ /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
+ * Once per loop iteration is pleanty.
+ */
+ OLDTIME = TIME;
+ TIME = time(NULL);
+
+ /* Run background module timers every few seconds
+ * (the docs say modules shouldnt rely on accurate
+ * timing using this event, so we dont have to
+ * time this exactly).
+ */
+ if (((TIME % 5) == 0) && (!expire_run))
+ {
+ expire_lines();
+ FOREACH_MOD(I_OnBackgroundTimer,OnBackgroundTimer(TIME));
+ TickMissedTimers(TIME);
+ expire_run = true;
+ return;
+ }
+ else if ((TIME % 5) == 1)
+ {
+ expire_run = false;
+ }
+
+ /* Once a second, do the background processing */
+ if (TIME != OLDTIME)
+ {
+ if (TIME < OLDTIME)
+ WriteOpers("*** \002EH?!\002 -- Time is flowing BACKWARDS in this dimension! Clock drifted backwards %d secs.",abs(OLDTIME-TIME));
+ DoBackgroundUserStuff(TIME);
+ }
+
+ /* Process timeouts on module sockets each time around
+ * the loop. There shouldnt be many module sockets, at
+ * most, 20 or so, so this won't be much of a performance
+ * hit at all.
+ */
+ if (process_module_sockets)
+ DoSocketTimeouts(TIME);
+
+ TickTimers(TIME);
+
+ /* Call the socket engine to wait on the active
+ * file descriptors. The socket engine has everything's
+ * descriptors in its list... dns, modules, users,
+ * servers... so its nice and easy, just one call.
+ */
+ if (!(numberactive = SE->Wait(activefds)))
+ return;
+
+ /**
+ * Now process each of the fd's. For users, we have a fast
+ * lookup table which can find a user by file descriptor, so
+ * processing them by fd isnt expensive. If we have a lot of
+ * listening ports or module sockets though, things could get
+ * ugly.
+ */
+ for (unsigned int activefd = 0; activefd < numberactive; activefd++)
+ {
+ int socket_type = SE->GetType(activefds[activefd]);
+ switch (socket_type)
+ {
+ case X_ESTAB_CLIENT:
+
+ cu = fd_ref_table[activefds[activefd]];
+ if (cu)
+ ProcessUser(cu);
+
+ break;
+
+ case X_ESTAB_MODULE:
+
+ if (!process_module_sockets)
+ return;
+
+ /* Process module-owned sockets.
+ * Modules are encouraged to inherit their sockets from
+ * InspSocket so we can process them neatly like this.
+ */
+ s = socket_ref[activefds[activefd]];
+
+ if ((s) && (!s->Poll()))
+ {
+ log(DEBUG,"Socket poll returned false, close and bail");
+ SE->DelFd(s->GetFd());
+ for (std::vector<InspSocket*>::iterator a = module_sockets.begin(); a < module_sockets.end(); a++)
+ {
+ s_del = (InspSocket*)*a;
+ if ((s_del) && (s_del->GetFd() == activefds[activefd]))
+ {
+ module_sockets.erase(a);
+ break;
+ }
+ }
+ s->Close();
+ delete s;
+ }
+ break;
+
+ case X_ESTAB_DNS:
+ /* When we are using single-threaded dns,
+ * the sockets for dns end up in our mainloop.
+ * When we are using multi-threaded dns,
+ * each thread has its own basic poll() loop
+ * within it, making them 'fire and forget'
+ * and independent of the mainloop.
+ */
+#ifndef THREADED_DNS
+ dns_poll(activefds[activefd]);
+#endif
+ break;
+
+ case X_LISTEN:
+
+ /* It's a listener */
+ uslen = sizeof(sock_us);
+ length = sizeof(client);
+ incomingSockfd = accept (activefds[activefd],(struct sockaddr*)&client,&length);
+
+ if ((incomingSockfd > -1) && (!getsockname(incomingSockfd,(sockaddr*)&sock_us,&uslen)))
+ {
+ in_port = ntohs(sock_us.sin_port);
+ log(DEBUG,"Accepted socket %d",incomingSockfd);
+ /* Years and years ago, we used to resolve here
+ * using gethostbyaddr(). That is sucky and we
+ * don't do that any more...
+ */
+ NonBlocking(incomingSockfd);
+ if (Config->GetIOHook(in_port))
+ {
+ try
+ {
+ Config->GetIOHook(in_port)->OnRawSocketAccept(incomingSockfd, (char*)inet_ntoa(client.sin_addr), in_port);
+ }
+ catch (ModuleException& modexcept)
+ {
+ log(DEBUG,"Module exception cought: %s",modexcept.GetReason()); \
+ }
+ }
+ stats->statsAccept++;
+ AddClient(incomingSockfd, in_port, false, client.sin_addr);
+ log(DEBUG,"Adding client on port %lu fd=%lu",(unsigned long)in_port,(unsigned long)incomingSockfd);
+ }
+ else
+ {
+ log(DEBUG,"Accept failed on fd %lu: %s",(unsigned long)incomingSockfd,strerror(errno));
+ shutdown(incomingSockfd,2);
+ close(incomingSockfd);
+ stats->statsRefused++;
+ }
+ break;
+
+ default:
+ /* Something went wrong if we're in here.
+ * In fact, so wrong, im not quite sure
+ * what we would do, so for now, its going
+ * to safely do bugger all.
+ */
+ break;
+ }
+ }
+}