2 This file is part of GNUnet.
3 (C) 2011 Christian Grothoff (and other contributing authors)
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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
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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.
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16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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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
32 #define PREF_EPSILON 0.1
34 #define DEFAULT_REL_PREFERENCE 1.0
35 #define DEFAULT_ABS_PREFERENCE 0.0
37 #define DEFAULT_REL_QUALITY 1.0
40 (*GAS_Normalization_preference_changed_cb) (void *cls,
41 const struct GNUNET_PeerIdentity *peer,
42 enum GNUNET_ATS_PreferenceKind kind,
46 (*GAS_Normalization_property_changed_cb) (void *cls,
47 struct ATS_Address *peer,
52 * Get the normalized preference values for a specific peer
54 * @param id the peer @return pointer to the values, can be indexed
55 * with GNUNET_ATS_PreferenceKind, NULL if peer does not exist
58 GAS_normalization_get_preferences_by_peer (const struct GNUNET_PeerIdentity *id);
62 * Get the normalized properties values for a specific peer or
63 * the default values if
65 * @param address the address
66 * @return pointer to the values, can be indexed with GNUNET_ATS_PreferenceKind,
67 * default preferences if peer does not exist
70 GAS_normalization_get_properties (struct ATS_Address *address);
74 * Get the normalized preference values for a specific client and peer
76 * @param client client
77 * @param peer the peer
78 * @param pref the preference type
82 GAS_normalization_get_preferences_by_client (const void *client,
83 struct GNUNET_PeerIdentity *peer, enum GNUNET_ATS_PreferenceKind pref);
86 * Normalize an updated preference value
88 * @param src the client with this preference
89 * @param peer the peer to change the preference for
90 * @param kind the kind to change the preference
91 * @param score_abs the normalized score
94 GAS_normalization_normalize_preference (void *src,
95 const struct GNUNET_PeerIdentity *peer,
96 enum GNUNET_ATS_PreferenceKind kind,
100 * Update and normalize a atsi performance information
102 * @param addresses hashmap containing all addresses
103 * @param address the address to update
104 * @param atsi the array of performance information
105 * @param atsi_count the number of atsi information in the array
108 GAS_normalization_normalize_property (struct GNUNET_CONTAINER_MultiPeerMap *addresses,
109 struct ATS_Address *address,
110 const struct GNUNET_ATS_Information *atsi,
111 uint32_t atsi_count);
115 * A performance client disconnected
117 * @param client the disconnecting client
120 GAS_normalization_preference_client_disconnect (void *client);
123 * Start the normalization component
125 * @param pref_ch_cb callback to call on relative preference changing
126 * @param pref_ch_cb_cls cls for the preference callback
127 * @param property_ch_cb callback to call on relative property changing
128 * @param property_ch_cb_cls cls for the property callback
131 GAS_normalization_start (GAS_Normalization_preference_changed_cb pref_ch_cb,
132 void *pref_ch_cb_cls,
133 GAS_Normalization_property_changed_cb property_ch_cb,
134 void *property_ch_cb_cls);
138 * Stop the normalization component and free all items
141 GAS_normalization_stop ();
144 /* end of gnunet-service-ats_normalization.h */