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+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ * Copyright (C) 2013 Attila Molnar <attilamolnar@hush.com>
+ *
+ * This file is part of InspIRCd. InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#pragma once
+
+class StreamSocket;
+
+class IOHook : public ServiceProvider
+{
+ public:
+ IOHook(Module* mod, const std::string& Name)
+ : ServiceProvider(mod, Name, SERVICE_IOHOOK) { }
+
+ /** Called immediately after any connection is accepted. This is intended for raw socket
+ * processing (e.g. modules which wrap the tcp connection within another library) and provides
+ * no information relating to a user record as the connection has not been assigned yet.
+ * There are no return values from this call as all modules get an opportunity if required to
+ * process the connection.
+ * @param sock The socket in question
+ * @param client The client IP address and port
+ * @param server The server IP address and port
+ */
+ virtual void OnStreamSocketAccept(StreamSocket* sock, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server) = 0;
+
+ /**
+ * Called when a hooked stream has data to write, or when the socket
+ * engine returns it as writable
+ * @param sock The socket in question
+ * @param sendq Data to send to the socket
+ * @return 1 if the sendq has been completely emptied, 0 if there is
+ * still data to send, and -1 if there was an error
+ */
+ virtual int OnStreamSocketWrite(StreamSocket* sock, std::string& sendq) = 0;
+
+ /** Called immediately before any socket is closed. When this event is called, shutdown()
+ * has not yet been called on the socket.
+ * @param sock The socket in question
+ */
+ virtual void OnStreamSocketClose(StreamSocket* sock) = 0;
+
+ /** Called immediately upon connection of an outbound BufferedSocket which has been hooked
+ * by a module.
+ * @param sock The socket in question
+ */
+ virtual void OnStreamSocketConnect(StreamSocket* sock) = 0;
+
+ /**
+ * Called when the stream socket has data to read
+ * @param sock The socket that is ready
+ * @param recvq The receive queue that new data should be appended to
+ * @return 1 if new data has been read, 0 if no new data is ready (but the
+ * socket is still connected), -1 if there was an error or close
+ */
+ virtual int OnStreamSocketRead(StreamSocket* sock, std::string& recvq) = 0;
+};