1 // 2 // Copyright (C) 2011 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_SHILL_ARES_H_ 18 #define SHILL_SHILL_ARES_H_ 19 20 #include <ares.h> 21 22 #include <base/lazy_instance.h> 23 24 namespace shill { 25 26 // A "ares.h" abstraction allowing mocking in tests. 27 class Ares { 28 public: 29 virtual ~Ares(); 30 31 static Ares* GetInstance(); 32 33 // ares_destroy 34 virtual void Destroy(ares_channel channel); 35 36 // ares_gethostbyname 37 virtual void GetHostByName(ares_channel channel, 38 const char* hostname, 39 int family, 40 ares_host_callback callback, 41 void* arg); 42 43 // ares_getsock 44 virtual int GetSock(ares_channel channel, 45 ares_socket_t* socks, 46 int numsocks); 47 48 // ares_init_options 49 virtual int InitOptions(ares_channel* channelptr, 50 struct ares_options* options, 51 int optmask); 52 53 // ares_process_fd 54 virtual void ProcessFd(ares_channel channel, 55 ares_socket_t read_fd, 56 ares_socket_t write_fd); 57 58 // ares_set_local_dev 59 virtual void SetLocalDev(ares_channel channel, const char* local_dev_name); 60 61 // ares_timeout 62 virtual struct timeval* Timeout(ares_channel channel, 63 struct timeval* maxtv, 64 struct timeval* tv); 65 66 // ares_set_servers_csv 67 virtual int SetServersCsv(ares_channel channel, const char* servers); 68 69 protected: 70 Ares(); 71 72 private: 73 friend struct base::DefaultLazyInstanceTraits<Ares>; 74 75 DISALLOW_COPY_AND_ASSIGN(Ares); 76 }; 77 78 } // namespace shill 79 80 #endif // SHILL_SHILL_ARES_H_ 81
