2 This file is part of GNUnet.
3 (C) 2011 Christian Grothoff (and other contributing authors)
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 3, or (at your
8 option) any later version.
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.
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.
22 * @file ats/gnunet-service-ats_normalization.h
23 * @brief ats service address: management of ATS properties and preferences normalization
24 * @author Matthias Wachs
25 * @author Christian Grothoff
28 #include "gnunet_ats_service.h"
30 #define PREF_AGING_INTERVAL GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10)
31 #define PREF_AGING_FACTOR 0.95
33 #define DEFAULT_REL_PREFERENCE 1.0
34 #define DEFAULT_ABS_PREFERENCE 0.0
37 (*GAS_Normalization_preference_changed_cb) (void *cls,
38 const struct GNUNET_PeerIdentity *peer,
39 enum GNUNET_ATS_PreferenceKind kind,
43 * Get the normalized preference values for a specific peer
46 * @return pointer to the values, can be indexed with GNUNET_ATS_PreferenceKind, NULL if peer does not exist
49 GAS_normalization_get_preferences (const struct GNUNET_PeerIdentity *id);
53 * Normalize an updated preference value
55 * @param src the client with this preference
56 * @param peer the peer to change the preference for
57 * @param kind the kind to change the preference
58 * @param score_abs the normalized score
61 GAS_normalization_normalize_preference (void *src,
62 const struct GNUNET_PeerIdentity *peer,
63 enum GNUNET_ATS_PreferenceKind kind,
67 GAS_normalization_normalize_property (struct ATS_Address *address,
68 const struct GNUNET_ATS_Information *atsi,
72 * Start the normalization component
74 * @param pref_ch_cb callback to call on relative preference changing
75 * @param pref_ch_cb_cls cls for the callback
78 GAS_normalization_start (GAS_Normalization_preference_changed_cb pref_ch_cb, void *pref_ch_cb_cls);
82 * Stop the normalization component and free all items
85 GAS_normalization_stop ();
88 /* end of gnunet-service-ats_normalization.h */