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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) 2016 SUSE LINUX GmbH | |
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 | #include "common/bit_str.h" | |
15 | #include "common/Formatter.h" | |
11fdf7f2 | 16 | #include "include/ceph_assert.h" |
7c673cae FG |
17 | |
18 | static void _dump_bit_str( | |
19 | uint64_t bits, | |
20 | std::ostream *out, | |
21 | ceph::Formatter *f, | |
22 | std::function<const char*(uint64_t)> func, | |
23 | bool dump_bit_val) | |
24 | { | |
25 | uint64_t b = bits; | |
26 | int cnt = 0; | |
27 | bool outted = false; | |
28 | ||
29 | while (b && cnt < 64) { | |
30 | uint64_t r = bits & (1ULL << cnt++); | |
31 | if (r) { | |
32 | if (out) { | |
33 | if (outted) | |
34 | *out << ","; | |
35 | *out << func(r); | |
36 | if (dump_bit_val) { | |
37 | *out << "(" << r << ")"; | |
38 | } | |
39 | } else { | |
11fdf7f2 | 40 | ceph_assert(f != NULL); |
7c673cae FG |
41 | if (dump_bit_val) { |
42 | f->dump_stream("bit_flag") << func(r) | |
43 | << "(" << r << ")"; | |
44 | } else { | |
45 | f->dump_stream("bit_flag") << func(r); | |
46 | } | |
47 | } | |
48 | outted = true; | |
49 | } | |
50 | b >>= 1; | |
51 | } | |
52 | if (!outted && out) | |
53 | *out << "none"; | |
54 | } | |
55 | ||
56 | void print_bit_str( | |
57 | uint64_t bits, | |
58 | std::ostream &out, | |
11fdf7f2 | 59 | const std::function<const char*(uint64_t)> &func, |
7c673cae FG |
60 | bool dump_bit_val) |
61 | { | |
62 | _dump_bit_str(bits, &out, NULL, func, dump_bit_val); | |
63 | } | |
64 | ||
65 | void dump_bit_str( | |
66 | uint64_t bits, | |
67 | ceph::Formatter *f, | |
11fdf7f2 | 68 | const std::function<const char*(uint64_t)> &func, |
7c673cae FG |
69 | bool dump_bit_val) |
70 | { | |
71 | _dump_bit_str(bits, NULL, f, func, dump_bit_val); | |
72 | } |