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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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
33 #define DEFAULT_REL_PREFERENCE 1.0
34 #define DEFAULT_ABS_PREFERENCE 0.0
36 #define DEFAULT_REL_QUALITY 1.0
39 (*GAS_Normalization_preference_changed_cb) (void *cls,
40 const struct GNUNET_PeerIdentity *peer,
41 enum GNUNET_ATS_PreferenceKind kind,
45 (*GAS_Normalization_property_changed_cb) (void *cls,
46 const struct ATS_Address *peer,
51 * Get the normalized preference values for a specific peer
54 * @return pointer to the values, can be indexed with GNUNET_ATS_PreferenceKind, NULL if peer does not exist
57 GAS_normalization_get_preferences (const struct GNUNET_PeerIdentity *id);
61 * Normalize an updated preference value
63 * @param src the client with this preference
64 * @param peer the peer to change the preference for
65 * @param kind the kind to change the preference
66 * @param score_abs the normalized score
69 GAS_normalization_normalize_preference (void *src,
70 const struct GNUNET_PeerIdentity *peer,
71 enum GNUNET_ATS_PreferenceKind kind,
75 * Update and normalize a atsi performance information
77 * @param addresses hashmap containing all addresses
78 * @param address the address to update
79 * @param atsi the array of performance information
80 * @param atsi_count the number of atsi information in the array
83 GAS_normalization_normalize_property (struct GNUNET_CONTAINER_MultiHashMap *addresses,
84 struct ATS_Address *address,
85 const struct GNUNET_ATS_Information *atsi,
89 * Start the normalization component
91 * @param pref_ch_cb callback to call on relative preference changing
92 * @param pref_ch_cb_cls cls for the callback
95 GAS_normalization_start (GAS_Normalization_preference_changed_cb pref_ch_cb,
97 GAS_Normalization_property_changed_cb property_ch_ch_cls,
98 void *property_ch_cb_cls);
102 * Stop the normalization component and free all items
105 GAS_normalization_stop ();
108 /* end of gnunet-service-ats_normalization.h */