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+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __TCPPORT_H__
+#define __TCPPORT_H__
+
+#include <list>
+#include "talk/base/asynctcpsocket.h"
+#include "talk/p2p/base/port.h"
+
+namespace cricket {
+
+class TCPConnection;
+
+extern const std::string LOCAL_PORT_TYPE; // type of TCP ports
+
+// Communicates using a local TCP port.
+//
+// This class is designed to allow subclasses to take advantage of the
+// connection management provided by this class. A subclass should take of all
+// packet sending and preparation, but when a packet is received, it should
+// call this TCPPort::OnReadPacket (3 arg) to dispatch to a connection.
+class TCPPort : public Port {
+public:
+ TCPPort(Thread* thread, SocketFactory* factory, Network* network,
+ const SocketAddress& address);
+ virtual ~TCPPort();
+
+ virtual Connection* CreateConnection(const Candidate& address, CandidateOrigin origin);
+
+ virtual void PrepareAddress();
+
+ virtual int SetOption(Socket::Option opt, int value);
+ virtual int GetError();
+
+protected:
+ // Handles sending using the local TCP socket.
+ virtual int SendTo(const void* data, size_t size, const SocketAddress& addr, bool payload);
+
+ // Creates TCPConnection for incoming sockets
+ void OnAcceptEvent(AsyncSocket* socket);
+
+ AsyncSocket* socket() { return socket_; }
+
+private:
+ bool incoming_only_;
+ AsyncSocket* socket_;
+ int error_;
+
+ struct Incoming {
+ SocketAddress addr;
+ AsyncTCPSocket * socket;
+ };
+ std::list<Incoming> incoming_;
+
+ AsyncTCPSocket * GetIncoming(const SocketAddress& addr, bool remove = false);
+
+ // Receives packet signal from the local TCP Socket.
+ void OnReadPacket(const char* data, size_t size, const SocketAddress& remote_addr,
+ AsyncPacketSocket* socket);
+
+ friend class TCPConnection;
+};
+
+class TCPConnection : public Connection {
+public:
+ // Connection is outgoing unless socket is specified
+ TCPConnection(TCPPort* port, const Candidate& candidate, AsyncTCPSocket* socket = 0);
+ virtual ~TCPConnection();
+
+ virtual int Send(const void* data, size_t size);
+ virtual int GetError();
+
+ AsyncTCPSocket * socket() { return socket_; }
+
+private:
+ TCPPort* tcpport();
+ AsyncTCPSocket* socket_;
+ bool connected_;
+ int error_;
+
+ void OnConnect(AsyncTCPSocket* socket);
+ void OnClose(AsyncTCPSocket* socket, int error);
+ void OnReadPacket(const char* data, size_t size, const SocketAddress& remote_addr,
+ AsyncPacketSocket* socket);
+
+ friend class TCPPort;
+};
+
+} // namespace cricket
+
+#endif // __TCPPORT_H__