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[thirdparty/pdns.git] / pdns / responsestats.hh
1 /*
2 * This file is part of PowerDNS or dnsdist.
3 * Copyright -- PowerDNS.COM B.V. and its contributors
4 *
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.
8 *
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.
12 *
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.
17 *
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.
21 */
22 #pragma once
23
24 #include <array>
25 #include "histogram.hh"
26 #include "stat_t.hh"
27
28 #include "dnspacket.hh"
29
30 class ResponseStats
31 {
32 public:
33 ResponseStats();
34
35 void submitResponse(DNSPacket& p, bool udpOrTCP, bool last = true) const;
36 void submitResponse(uint16_t qtype, uint16_t respsize, bool udpOrTCP) const;
37 void submitResponse(uint16_t qtype, uint16_t respsize, uint8_t rcode, bool udpOrTCP) const;
38 map<uint16_t, uint64_t> getQTypeResponseCounts() const;
39 map<uint16_t, uint64_t> getSizeResponseCounts() const;
40 map<uint8_t, uint64_t> getRCodeResponseCounts() const;
41 string getQTypeReport() const;
42
43 private:
44 struct Counter
45 {
46 mutable pdns::stat_t value;
47 };
48
49 std::array<Counter, 65536> d_qtypecounters;
50 std::array<Counter, 256> d_rcodecounters;
51 pdns::AtomicHistogram d_sizecounters;
52 };
53
54 extern ResponseStats g_rs;