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1/*
2 This file is part of GNUnet
3 (C) 2012 Christian Grothoff (and other contributing authors)
4
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 2, or (at your
8 option) any later version.
9
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
19*/
20
21/**
22 * @file consensus/strata_estimator.h
23 * @brief estimator of set difference
24 * @author Florian Dold
25 */
26
27#ifndef GNUNET_CONSENSUS_STRATA_ESTIMATOR_H
28#define GNUNET_CONSENSUS_STRATA_ESTIMATOR_H
29
30#include "platform.h"
31#include "gnunet_common.h"
32#include "gnunet_util_lib.h"
33
34#ifdef __cplusplus
35extern "C"
36{
37#if 0 /* keep Emacsens' auto-indent happy */
38}
39#endif
40#endif
41
42
43struct StrataEstimator
44{
45 struct InvertibleBloomFilter **strata;
46 unsigned int strata_count;
47 unsigned int ibf_size;
48};
49
50
51void
52strata_estimator_write (const struct StrataEstimator *se, void *buf);
53
54
55void
56strata_estimator_read (const void *buf, struct StrataEstimator *se);
57
58
59struct StrataEstimator *
60strata_estimator_create (unsigned int strata_count, uint32_t ibf_size, uint8_t ibf_hashnum);
61
62
63unsigned int
64strata_estimator_difference (const struct StrataEstimator *se1,
65 const struct StrataEstimator *se2);
66
67
68void
69strata_estimator_insert (struct StrataEstimator *se, struct GNUNET_HashCode *key);
70
71
72void
73strata_estimator_destroy (struct StrataEstimator *se);
74
75
76#if 0 /* keep Emacsens' auto-indent happy */
77{
78#endif
79#ifdef __cplusplus
80}
81#endif
82
83#endif
84