2 * This file is part of PowerDNS or dnsdist.
3 * Copyright -- PowerDNS.COM B.V. and its contributors
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * In addition, for the avoidance of any doubt, permission is granted to
10 * link this program with OpenSSL and to (re)distribute the binaries
11 * produced as the result of such linking.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
28 #include <condition_variable>
34 class RemoteLoggerInterface
37 virtual ~RemoteLoggerInterface() {};
38 virtual void queueData(const std::string& data) = 0;
39 virtual std::string toString() const = 0;
42 class RemoteLogger : public RemoteLoggerInterface
45 RemoteLogger(const ComboAddress& remote, uint16_t timeout=2, uint64_t maxQueuedEntries=100, uint8_t reconnectWaitTime=1, bool asyncConnect=false);
46 virtual ~RemoteLogger();
47 virtual void queueData(const std::string& data) override;
48 virtual std::string toString() const override
50 return "RemoteLogger to " + d_remote.toStringWithPort();
56 uint64_t getGeneration() const
60 void setGeneration(uint64_t newGeneration)
62 d_generation = newGeneration;
65 void busyReconnectLoop();
69 std::queue<std::string> d_writeQueue;
70 std::mutex d_writeMutex;
71 std::condition_variable d_queueCond;
72 ComboAddress d_remote;
73 uint64_t d_maxQueuedEntries;
74 uint64_t d_generation{0};
77 uint8_t d_reconnectWaitTime;
78 std::atomic<bool> d_exiting{false};
79 bool d_asyncConnect{false};
80 bool d_connected{false};