1 /* 2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef WEBRTC_BASE_ASYNCUDPSOCKET_H_ 12 #define WEBRTC_BASE_ASYNCUDPSOCKET_H_ 13 14 #include "webrtc/base/asyncpacketsocket.h" 15 #include "webrtc/base/scoped_ptr.h" 16 #include "webrtc/base/socketfactory.h" 17 18 namespace rtc { 19 20 // Provides the ability to receive packets asynchronously. Sends are not 21 // buffered since it is acceptable to drop packets under high load. 22 class AsyncUDPSocket : public AsyncPacketSocket { 23 public: 24 // Binds |socket| and creates AsyncUDPSocket for it. Takes ownership 25 // of |socket|. Returns NULL if bind() fails (|socket| is destroyed 26 // in that case). 27 static AsyncUDPSocket* Create(AsyncSocket* socket, 28 const SocketAddress& bind_address); 29 // Creates a new socket for sending asynchronous UDP packets using an 30 // asynchronous socket from the given factory. 31 static AsyncUDPSocket* Create(SocketFactory* factory, 32 const SocketAddress& bind_address); 33 explicit AsyncUDPSocket(AsyncSocket* socket); 34 virtual ~AsyncUDPSocket(); 35 36 virtual SocketAddress GetLocalAddress() const; 37 virtual SocketAddress GetRemoteAddress() const; 38 virtual int Send(const void *pv, size_t cb, 39 const rtc::PacketOptions& options); 40 virtual int SendTo(const void *pv, size_t cb, const SocketAddress& addr, 41 const rtc::PacketOptions& options); 42 virtual int Close(); 43 44 virtual State GetState() const; 45 virtual int GetOption(Socket::Option opt, int* value); 46 virtual int SetOption(Socket::Option opt, int value); 47 virtual int GetError() const; 48 virtual void SetError(int error); 49 50 private: 51 // Called when the underlying socket is ready to be read from. 52 void OnReadEvent(AsyncSocket* socket); 53 // Called when the underlying socket is ready to send. 54 void OnWriteEvent(AsyncSocket* socket); 55 56 scoped_ptr<AsyncSocket> socket_; 57 char* buf_; 58 size_t size_; 59 }; 60 61 } // namespace rtc 62 63 #endif // WEBRTC_BASE_ASYNCUDPSOCKET_H_ 64
