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1/*
2 This file is part of GNUnet
3 (C) 2009 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 * @file include/gnunet_peerinfo_service.h
22 * @brief Code to maintain the list of currently known hosts
23 * (in memory structure of data/hosts) and their trust ratings
24 * (in memory structure of data/trust)
25 * @author Christian Grothoff
26 */
27
28#ifndef GNUNET_PEERINFO_SERVICE_H
29#define GNUNET_PEERINFO_SERVICE_H
30
31#include "gnunet_common.h"
32#include "gnunet_configuration_lib.h"
33#include "gnunet_crypto_lib.h"
34#include "gnunet_hello_lib.h"
35
36#ifdef __cplusplus
37extern "C"
38{
39#if 0 /* keep Emacsens' auto-indent happy */
40}
41#endif
42#endif
43
44
45/**
46 * Add a host to the persistent list.
47 *
48 * @param cfg configuration to use
49 * @param sched scheduler to use
50 * @param peer identity of the peer
51 * @param hello the verified (!) HELLO message
52 */
53void
54GNUNET_PEERINFO_add_peer (struct GNUNET_CONFIGURATION_Handle *cfg,
55 struct GNUNET_SCHEDULER_Handle *sched,
56 const struct GNUNET_PeerIdentity *peer,
57 const struct GNUNET_HELLO_Message *hello);
58
59/**
60 * Type of an iterator over the hosts. Note that each
61 * host will be called with each available protocol.
62 *
63 * @param cls closure
64 * @param peer id of the peer, NULL for last call
65 * @param hello hello message for the peer (can be NULL)
66 * @param trust amount of trust we have in the peer
67 */
68typedef void
69 (*GNUNET_PEERINFO_Processor) (void *cls,
70 const struct GNUNET_PeerIdentity * peer,
71 const struct GNUNET_HELLO_Message * hello,
72 uint32_t trust);
73
74
75/**
76 * Call a method for each known matching host and change
77 * its trust value. The method will be invoked once for
78 * each host and then finally once with a NULL pointer.
79 * Note that the last call can be triggered by timeout or
80 * by simply being done; however, the trust argument will
81 * be set to zero if we are done, 1 if we timed out and
82 * 2 for fatal error.
83 *
84 * @param cfg configuration to use
85 * @param sched scheduler to use
86 * @param peer restrict iteration to this peer only (can be NULL)
87 * @param trust_delta how much to change the trust in all matching peers
88 * @param timeout how long to wait until timing out
89 * @param callback the method to call for each peer
90 * @param callback_cls closure for callback
91 */
92void
93GNUNET_PEERINFO_for_all (struct GNUNET_CONFIGURATION_Handle *cfg,
94 struct GNUNET_SCHEDULER_Handle *sched,
95 const struct GNUNET_PeerIdentity *peer,
96 int trust_delta,
97 struct GNUNET_TIME_Relative timeout,
98 GNUNET_PEERINFO_Processor callback,
99 void *callback_cls);
100
101
102#if 0 /* keep Emacsens' auto-indent happy */
103{
104#endif
105#ifdef __cplusplus
106}
107#endif
108
109
110/* end of gnunet_peerinfo_service.h */
111#endif