2 This file is part of GNUnet.
3 (C) 2010 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 2, or (at your
8 option) any later version.
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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.
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,
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22 * @file include/gnunet_load_lib.h
23 * @brief functions related to load calculations
24 * @author Christian Grothoff
27 #ifndef GNUNET_LOAD_LIB_H
28 #define GNUNET_LOAD_LIB_H
33 #if 0 /* keep Emacsens' auto-indent happy */
38 #include "gnunet_common.h"
39 #include "gnunet_time_lib.h"
44 struct GNUNET_LOAD_Value;
47 * Create a new load value.
49 * @param autodecline speed at which this value should automatically
50 * decline in the absence of external events; at the given
51 * frequency, 0-load values will be added to the load
52 * @return the new load value
54 struct GNUNET_LOAD_Value *
55 GNUNET_LOAD_value_init (struct GNUNET_TIME_Relative autodecline);
61 * @param lv value to free
63 #define GNUNET_LOAD_value_free(lv) GNUNET_free (lv)
67 * Get the current load.
69 * @param load load handle
70 * @return zero for below-average load, otherwise
71 * number of std. devs we are above average;
72 * 100 if the latest updates were so large
73 * that we could not do proper calculations
76 GNUNET_LOAD_get_load (struct GNUNET_LOAD_Value *load);
80 * Get the average value given to update so far.
82 * @param load load handle
83 * @return zero if update was never called
86 GNUNET_LOAD_get_average (struct GNUNET_LOAD_Value *load);
90 * Update the current load.
92 * @param load to update
93 * @param data latest measurement value (for example, delay)
96 GNUNET_LOAD_update (struct GNUNET_LOAD_Value *load,
100 #if 0 /* keep Emacsens' auto-indent happy */
107 /* ifndef GNUNET_LOAD_LIB_H */
109 /* end of gnunet_load_lib.h */