| /* |
| * 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 __UDPPORT_H__ |
| #define __UDPPORT_H__ |
| |
| #include "talk/base/asyncudpsocket.h" |
| #include "talk/p2p/base/port.h" |
| |
| namespace talk_base { |
| class Thread; |
| class Network; |
| class SocketAddress; |
| } // namespace talk_base |
| |
| namespace cricket { |
| |
| extern const std::string LOCAL_PORT_TYPE; // type of UDP ports |
| |
| // Communicates using a local UDP 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 UDPPort::OnReadPacket (3 arg) to dispatch to a connection. |
| class UDPPort : public Port { |
| public: |
| UDPPort(talk_base::Thread* thread, talk_base::SocketFactory* factory, |
| talk_base::Network* network, const talk_base::SocketAddress& address); |
| virtual ~UDPPort(); |
| |
| virtual void PrepareAddress(); |
| virtual Connection* CreateConnection(const Candidate& address, CandidateOrigin origin); |
| |
| virtual int SetOption(talk_base::Socket::Option opt, int value); |
| virtual int GetError(); |
| |
| protected: |
| UDPPort(talk_base::Thread* thread, const std::string &type, |
| talk_base::SocketFactory* factory, talk_base::Network* network); |
| |
| // Handles sending using the local UDP socket. |
| virtual int SendTo(const void* data, size_t size, |
| const talk_base::SocketAddress& addr, bool payload); |
| |
| // Dispatches the given packet to the port or connection as appropriate. |
| void OnReadPacket( |
| const char* data, size_t size, |
| const talk_base::SocketAddress& remote_addr); |
| |
| talk_base::AsyncPacketSocket* socket() { return socket_; } |
| |
| private: |
| talk_base::AsyncPacketSocket* socket_; |
| int error_; |
| |
| // Receives packet signal from the local UDP Socket. |
| void OnReadPacketSlot( |
| const char* data, size_t size, |
| const talk_base::SocketAddress& remote_addr, |
| talk_base::AsyncPacketSocket* socket); |
| }; |
| |
| } // namespace cricket |
| |
| #endif // __UDPPORT_H__ |