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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef COMPONENTS_RAPPOR_RAPPOR_PARAMETERS_H_ | |
6 #define COMPONENTS_RAPPOR_RAPPOR_PARAMETERS_H_ | |
7 | |
8 #include <ostream> | |
Alexei Svitkine (slow)
2014/01/24 22:09:03
Remove
Steven Holte
2014/01/24 23:26:58
Done.
| |
9 #include <string> | |
10 | |
11 namespace rappor { | |
12 | |
13 enum Probability { | |
14 PROBABILITY_75, // 75% | |
15 PROBABILITY_50, // 50% | |
16 }; | |
17 | |
18 // An object describing a rappor metric and the parameters used to generate it. | |
19 // | |
20 // For a full description of the rappor metrics, see | |
21 // http://www.chromium.org/developers/design-documents/rappor | |
22 struct RapporParameters { | |
23 // Get a string representing the parameters, for DCHECK_EQ. | |
24 std::string ToString() const; | |
25 | |
26 // The name of the metric. | |
27 std::string rappor_name; | |
28 | |
29 // The number of bytes stored in the Bloom filter. | |
30 int bloom_filter_size_bytes; | |
31 // The number of hash functions used in the Bloom filter. | |
32 int bloom_filter_hash_function_count; | |
33 | |
34 // The probability that a bit will be redacted with fake data. | |
35 Probability fake_prob; | |
36 // The probability that a fake bit will be a one. | |
37 Probability fake_one_prob; | |
38 | |
39 // The probability that a one bit in the redacted data reports as one. | |
40 Probability one_coin_prob; | |
41 // The probability that a zero bit in the redacted data reports as one. | |
42 Probability zero_coin_prob; | |
43 }; | |
44 | |
45 } // namespace rappor | |
46 | |
47 #endif // COMPONENTS_RAPPOR_RAPPOR_PARAMETERS_H_ | |
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