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 RTC_BASE_SOCKET_SERVER_H_ 12 #define RTC_BASE_SOCKET_SERVER_H_ 13 14 #include <memory> 15 16 #include "rtc_base/socket_factory.h" 17 18 namespace rtc { 19 20 class Thread; 21 // Needs to be forward declared because there's a circular dependency between 22 // NetworkMonitor and Thread. 23 // TODO(deadbeef): Fix this. 24 class NetworkBinderInterface; 25 26 // Provides the ability to wait for activity on a set of sockets. The Thread 27 // class provides a nice wrapper on a socket server. 28 // 29 // The server is also a socket factory. The sockets it creates will be 30 // notified of asynchronous I/O from this server's Wait method. 31 class SocketServer : public SocketFactory { 32 public: 33 static const int kForever = -1; 34 35 static std::unique_ptr<SocketServer> CreateDefault(); 36 // When the socket server is installed into a Thread, this function is 37 // called to allow the socket server to use the thread's message queue for 38 // any messaging that it might need to perform. SetMessageQueue(Thread * queue)39 virtual void SetMessageQueue(Thread* queue) {} 40 41 // Sleeps until: 42 // 1) cms milliseconds have elapsed (unless cms == kForever) 43 // 2) WakeUp() is called 44 // While sleeping, I/O is performed if process_io is true. 45 virtual bool Wait(int cms, bool process_io) = 0; 46 47 // Causes the current wait (if one is in progress) to wake up. 48 virtual void WakeUp() = 0; 49 50 // A network binder will bind the created sockets to a network. 51 // It is only used in PhysicalSocketServer. set_network_binder(NetworkBinderInterface * binder)52 void set_network_binder(NetworkBinderInterface* binder) { 53 network_binder_ = binder; 54 } network_binder()55 NetworkBinderInterface* network_binder() const { return network_binder_; } 56 57 private: 58 NetworkBinderInterface* network_binder_ = nullptr; 59 }; 60 61 } // namespace rtc 62 63 #endif // RTC_BASE_SOCKET_SERVER_H_ 64