1 // 2 // Copyright (C) 2014 The Android Open Source Project 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at 7 // 8 // http://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 // 16 17 #ifndef SHILL_NET_IO_READY_HANDLER_H_ 18 #define SHILL_NET_IO_READY_HANDLER_H_ 19 20 #include <base/message_loop/message_loop.h> 21 22 #include "shill/net/io_handler.h" 23 24 namespace shill { 25 26 // This handler is different from the IOInputHandler 27 // in that we don't read from the file handle and 28 // leave that to the caller. This is useful in accept()ing 29 // sockets and effort to working with peripheral libraries. 30 class IOReadyHandler : public IOHandler, 31 public base::MessageLoopForIO::Watcher { 32 public: 33 IOReadyHandler(int fd, 34 ReadyMode mode, 35 const ReadyCallback& ready_callback); 36 ~IOReadyHandler(); 37 38 void Start() override; 39 void Stop() override; 40 41 private: 42 // base::MessageLoopForIO::Watcher methods. 43 void OnFileCanReadWithoutBlocking(int fd) override; 44 void OnFileCanWriteWithoutBlocking(int fd) override; 45 46 int fd_; 47 base::MessageLoopForIO::FileDescriptorWatcher fd_watcher_; 48 ReadyMode ready_mode_; 49 ReadyCallback ready_callback_; 50 }; 51 52 } // namespace shill 53 54 #endif // SHILL_NET_IO_READY_HANDLER_H_ 55