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_MESSAGE_TRACKER_ENTRY_H
36 #define D_DHT_MESSAGE_TRACKER_ENTRY_H
37 
38 #include "common.h"
39 
40 #include <string>
41 #include <memory>
42 
43 #include "DHTConstants.h"
44 #include "TimerA2.h"
45 
46 namespace aria2 {
47 
48 class DHTNode;
49 class DHTMessage;
50 class DHTMessageCallback;
51 
52 class DHTMessageTrackerEntry {
53 private:
54   std::shared_ptr<DHTNode> targetNode_;
55 
56   std::string transactionID_;
57 
58   std::string messageType_;
59 
60   std::unique_ptr<DHTMessageCallback> callback_;
61 
62   Timer dispatchedTime_;
63 
64   std::chrono::seconds timeout_;
65 
66 public:
67   DHTMessageTrackerEntry(std::shared_ptr<DHTNode> targetNode,
68                          std::string transactionID, std::string messageType,
69                          std::chrono::seconds timeout,
70                          std::unique_ptr<DHTMessageCallback> callback =
71                              std::unique_ptr<DHTMessageCallback>{});
72 
73   bool isTimeout() const;
74 
75   void extendTimeout();
76 
77   bool match(const std::string& transactionID, const std::string& ipaddr,
78              uint16_t port) const;
79 
80   const std::shared_ptr<DHTNode>& getTargetNode() const;
81   const std::string& getMessageType() const;
82   const std::unique_ptr<DHTMessageCallback>& getCallback() const;
83   std::unique_ptr<DHTMessageCallback> popCallback();
84   Timer::Clock::duration getElapsed() const;
85 };
86 
87 } // namespace aria2
88 
89 #endif // D_DHT_MESSAGE_TRACKER_ENTRY_H
90