1 /* <!-- copyright */ 2 /* 3 * aria2 - The high speed download utility 4 * 5 * Copyright (C) 2006 Tatsuhiro Tsujikawa 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 * 21 * In addition, as a special exception, the copyright holders give 22 * permission to link the code of portions of this program with the 23 * OpenSSL library under certain conditions as described in each 24 * individual source file, and distribute linked combinations 25 * including the two. 26 * You must obey the GNU General Public License in all respects 27 * for all of the code used other than OpenSSL. If you modify 28 * file(s) with this exception, you may extend this exception to your 29 * version of the file(s), but you are not obligated to do so. If you 30 * do not wish to do so, delete this exception statement from your 31 * version. If you delete this exception statement from all source 32 * files in the program, then also delete it here. 33 */ 34 /* copyright --> */ 35 #ifndef D_DHT_NODE_H 36 #define D_DHT_NODE_H 37 38 #include "common.h" 39 40 #include <string> 41 42 #include "DHTConstants.h" 43 #include "TimerA2.h" 44 45 namespace aria2 { 46 47 class DHTNode { 48 private: 49 unsigned char id_[DHT_ID_LENGTH]; 50 51 std::string ipaddr_; 52 53 uint16_t port_; 54 55 std::chrono::milliseconds rtt_; 56 57 int condition_; 58 59 Timer lastContact_; 60 61 public: 62 DHTNode(); 63 64 /** 65 * id must be 20 bytes length 66 */ 67 DHTNode(const unsigned char* id); 68 69 ~DHTNode(); 70 71 void generateID(); 72 getID()73 const unsigned char* getID() const { return id_; } 74 updateRTT(std::chrono::milliseconds t)75 void updateRTT(std::chrono::milliseconds t) { rtt_ = std::move(t); } 76 getIPAddress()77 const std::string& getIPAddress() const { return ipaddr_; } 78 79 void setIPAddress(const std::string& ipaddr); 80 81 void setID(const unsigned char* id); 82 getPort()83 uint16_t getPort() const { return port_; } 84 setPort(uint16_t port)85 void setPort(uint16_t port) { port_ = port; } 86 87 bool isGood() const; 88 89 bool isBad() const; 90 91 bool isQuestionable() const; 92 93 void updateLastContact(); 94 95 void markGood(); 96 97 void markBad(); 98 99 void timeout(); 100 101 bool operator==(const DHTNode& node) const; 102 103 bool operator!=(const DHTNode& node) const; 104 105 bool operator<(const DHTNode& node) const; 106 107 std::string toString() const; 108 }; 109 110 } // namespace aria2 111 112 #endif // D_DHT_NODE_H 113