1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
|
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2013 Inktank <info@inktank.com>
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/
#include "HitSet.h"
#include "common/Formatter.h"
// -- HitSet --
HitSet::HitSet(const HitSet::Params& params)
: sealed(false)
{
switch (params.get_type()) {
case TYPE_BLOOM:
{
BloomHitSet::Params *p =
static_cast<BloomHitSet::Params*>(params.impl.get());
impl.reset(new BloomHitSet(p));
}
break;
case TYPE_EXPLICIT_HASH:
impl.reset(new ExplicitHashHitSet(static_cast<ExplicitHashHitSet::Params*>(params.impl.get())));
break;
case TYPE_EXPLICIT_OBJECT:
impl.reset(new ExplicitObjectHitSet(static_cast<ExplicitObjectHitSet::Params*>(params.impl.get())));
break;
default:
assert (0 == "unknown HitSet type");
}
}
void HitSet::encode(bufferlist &bl) const
{
ENCODE_START(1, 1, bl);
encode(sealed, bl);
if (impl) {
encode((__u8)impl->get_type(), bl);
impl->encode(bl);
} else {
encode((__u8)TYPE_NONE, bl);
}
ENCODE_FINISH(bl);
}
void HitSet::decode(bufferlist::const_iterator& bl)
{
DECODE_START(1, bl);
decode(sealed, bl);
__u8 type;
decode(type, bl);
switch ((impl_type_t)type) {
case TYPE_EXPLICIT_HASH:
impl.reset(new ExplicitHashHitSet);
break;
case TYPE_EXPLICIT_OBJECT:
impl.reset(new ExplicitObjectHitSet);
break;
case TYPE_BLOOM:
impl.reset(new BloomHitSet);
break;
case TYPE_NONE:
impl.reset(NULL);
break;
default:
throw buffer::malformed_input("unrecognized HitMap type");
}
if (impl)
impl->decode(bl);
DECODE_FINISH(bl);
}
void HitSet::dump(Formatter *f) const
{
f->dump_string("type", get_type_name());
f->dump_string("sealed", sealed ? "yes" : "no");
if (impl)
impl->dump(f);
}
void HitSet::generate_test_instances(list<HitSet*>& o)
{
o.push_back(new HitSet);
o.push_back(new HitSet(new BloomHitSet(10, .1, 1)));
o.back()->insert(hobject_t());
o.back()->insert(hobject_t("asdf", "", CEPH_NOSNAP, 123, 1, ""));
o.back()->insert(hobject_t("qwer", "", CEPH_NOSNAP, 456, 1, ""));
o.push_back(new HitSet(new ExplicitHashHitSet));
o.back()->insert(hobject_t());
o.back()->insert(hobject_t("asdf", "", CEPH_NOSNAP, 123, 1, ""));
o.back()->insert(hobject_t("qwer", "", CEPH_NOSNAP, 456, 1, ""));
o.push_back(new HitSet(new ExplicitObjectHitSet));
o.back()->insert(hobject_t());
o.back()->insert(hobject_t("asdf", "", CEPH_NOSNAP, 123, 1, ""));
o.back()->insert(hobject_t("qwer", "", CEPH_NOSNAP, 456, 1, ""));
}
HitSet::Params::Params(const Params& o) noexcept
{
if (o.get_type() != TYPE_NONE) {
create_impl(o.get_type());
// it's annoying to write virtual operator= methods; use encode/decode
// instead.
bufferlist bl;
o.impl->encode(bl);
auto p = bl.cbegin();
impl->decode(p);
} // else we don't need to do anything
}
const HitSet::Params& HitSet::Params::operator=(const Params& o)
{
create_impl(o.get_type());
if (o.impl) {
// it's annoying to write virtual operator= methods; use encode/decode
// instead.
bufferlist bl;
o.impl->encode(bl);
auto p = bl.cbegin();
impl->decode(p);
}
return *this;
}
void HitSet::Params::encode(bufferlist &bl) const
{
ENCODE_START(1, 1, bl);
if (impl) {
encode((__u8)impl->get_type(), bl);
impl->encode(bl);
} else {
encode((__u8)TYPE_NONE, bl);
}
ENCODE_FINISH(bl);
}
bool HitSet::Params::create_impl(impl_type_t type)
{
switch ((impl_type_t)type) {
case TYPE_EXPLICIT_HASH:
impl.reset(new ExplicitHashHitSet::Params);
break;
case TYPE_EXPLICIT_OBJECT:
impl.reset(new ExplicitObjectHitSet::Params);
break;
case TYPE_BLOOM:
impl.reset(new BloomHitSet::Params);
break;
case TYPE_NONE:
impl.reset(NULL);
break;
default:
return false;
}
return true;
}
void HitSet::Params::decode(bufferlist::const_iterator& bl)
{
DECODE_START(1, bl);
__u8 type;
decode(type, bl);
if (!create_impl((impl_type_t)type))
throw buffer::malformed_input("unrecognized HitMap type");
if (impl)
impl->decode(bl);
DECODE_FINISH(bl);
}
void HitSet::Params::dump(Formatter *f) const
{
f->dump_string("type", HitSet::get_type_name(get_type()));
if (impl)
impl->dump(f);
}
void HitSet::Params::generate_test_instances(list<HitSet::Params*>& o)
{
#define loop_hitset_params(kind) \
{ \
list<kind::Params*> params; \
kind::Params::generate_test_instances(params); \
for (list<kind::Params*>::iterator i = params.begin(); \
i != params.end(); ++i) \
o.push_back(new Params(*i)); \
}
o.push_back(new Params);
o.push_back(new Params(new BloomHitSet::Params));
loop_hitset_params(BloomHitSet);
o.push_back(new Params(new ExplicitHashHitSet::Params));
loop_hitset_params(ExplicitHashHitSet);
o.push_back(new Params(new ExplicitObjectHitSet::Params));
loop_hitset_params(ExplicitObjectHitSet);
}
ostream& operator<<(ostream& out, const HitSet::Params& p) {
out << HitSet::get_type_name(p.get_type());
if (p.impl) {
out << "{";
p.impl->dump_stream(out);
}
out << "}";
return out;
}
void ExplicitHashHitSet::dump(Formatter *f) const {
f->dump_unsigned("insert_count", count);
f->open_array_section("hash_set");
for (ceph::unordered_set<uint32_t>::const_iterator p = hits.begin();
p != hits.end();
++p)
f->dump_unsigned("hash", *p);
f->close_section();
}
void ExplicitObjectHitSet::dump(Formatter *f) const {
f->dump_unsigned("insert_count", count);
f->open_array_section("set");
for (ceph::unordered_set<hobject_t>::const_iterator p = hits.begin();
p != hits.end();
++p) {
f->open_object_section("object");
p->dump(f);
f->close_section();
}
f->close_section();
}
void BloomHitSet::Params::dump(Formatter *f) const {
f->dump_float("false_positive_probability", get_fpp());
f->dump_int("target_size", target_size);
f->dump_int("seed", seed);
}
void BloomHitSet::dump(Formatter *f) const {
f->open_object_section("bloom_filter");
bloom.dump(f);
f->close_section();
}
|
