1 // 2 // Copyright (C) 2012 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_HANDLER_H_ 18 #define SHILL_NET_IO_HANDLER_H_ 19 20 #include <string> 21 22 #include <base/callback.h> 23 24 #include "shill/net/shill_export.h" 25 26 namespace shill { 27 28 struct SHILL_EXPORT InputData { InputDataInputData29 InputData() : buf(nullptr), len(0) {} InputDataInputData30 InputData(unsigned char* in_buf, size_t in_len) : buf(in_buf), len(in_len) {} 31 32 unsigned char* buf; 33 size_t len; 34 }; 35 36 class SHILL_EXPORT IOHandler { 37 public: 38 enum ReadyMode { 39 kModeInput, 40 kModeOutput 41 }; 42 43 typedef base::Callback<void(const std::string&)> ErrorCallback; 44 typedef base::Callback<void(InputData*)> InputCallback; 45 typedef base::Callback<void(int)> ReadyCallback; 46 47 // Data buffer size in bytes. 48 static const int kDataBufferSize = 4096; 49 IOHandler()50 IOHandler() {} ~IOHandler()51 virtual ~IOHandler() {} 52 Start()53 virtual void Start() {} Stop()54 virtual void Stop() {} 55 }; 56 57 } // namespace shill 58 59 #endif // SHILL_NET_IO_HANDLER_H_ 60