]>
Commit | Line | Data |
---|---|---|
7c673cae FG |
1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | /* | |
4 | * Ceph - scalable distributed file system | |
5 | * | |
6 | * Copyright (C) 2011 New Dream Network | |
7 | * | |
8 | * This is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License version 2.1, as published by the Free Software | |
11 | * Foundation. See file COPYING. | |
12 | * | |
13 | */ | |
14 | ||
15 | #include "common/histogram.h" | |
16 | #include "common/Formatter.h" | |
17 | ||
18 | // -- pow2_hist_t -- | |
f67539c2 | 19 | void pow2_hist_t::dump(ceph::Formatter *f) const |
7c673cae FG |
20 | { |
21 | f->open_array_section("histogram"); | |
22 | for (std::vector<int32_t>::const_iterator p = h.begin(); p != h.end(); ++p) | |
23 | f->dump_int("count", *p); | |
24 | f->close_section(); | |
25 | f->dump_int("upper_bound", upper_bound()); | |
26 | } | |
27 | ||
f67539c2 | 28 | void pow2_hist_t::encode(ceph::buffer::list& bl) const |
7c673cae FG |
29 | { |
30 | ENCODE_START(1, 1, bl); | |
11fdf7f2 | 31 | encode(h, bl); |
7c673cae FG |
32 | ENCODE_FINISH(bl); |
33 | } | |
34 | ||
f67539c2 | 35 | void pow2_hist_t::decode(ceph::buffer::list::const_iterator& p) |
7c673cae FG |
36 | { |
37 | DECODE_START(1, p); | |
11fdf7f2 | 38 | decode(h, p); |
7c673cae FG |
39 | DECODE_FINISH(p); |
40 | } | |
41 | ||
42 | void pow2_hist_t::generate_test_instances(std::list<pow2_hist_t*>& ls) | |
43 | { | |
44 | ls.push_back(new pow2_hist_t); | |
45 | ls.push_back(new pow2_hist_t); | |
46 | ls.back()->h.push_back(1); | |
47 | ls.back()->h.push_back(3); | |
48 | ls.back()->h.push_back(0); | |
49 | ls.back()->h.push_back(2); | |
50 | } | |
51 | ||
52 | void pow2_hist_t::decay(int bits) | |
53 | { | |
54 | for (std::vector<int32_t>::iterator p = h.begin(); p != h.end(); ++p) { | |
55 | *p >>= bits; | |
56 | } | |
57 | _contract(); | |
58 | } |