189aafde9d
Add an option to use the median filter to reduce noise in measurements before they are accumulated to sourcestats, similarly to reference clocks. The option specifies how many samples are reduced to a single sample. The filter is intended to be used with very short polling intervals in local networks where it is acceptable to generate a lot of NTP traffic.
85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
/*
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chronyd/chronyc - Programs for keeping computer clocks accurate.
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**********************************************************************
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* Copyright (C) Richard P. Curnow 1997-2002
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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**********************************************************************
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=======================================================================
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Header file defining parameters that can be set on a per source basis
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*/
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#ifndef GOT_SRCPARAMS_H
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#define GOT_SRCPARAMS_H
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#include "sources.h"
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typedef enum {
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SRC_OFFLINE,
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SRC_ONLINE,
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SRC_MAYBE_ONLINE,
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} SRC_Connectivity;
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typedef struct {
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int minpoll;
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int maxpoll;
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SRC_Connectivity connectivity;
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int auto_offline;
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int presend_minpoll;
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int burst;
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int iburst;
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int min_stratum;
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int poll_target;
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int version;
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int max_sources;
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int min_samples;
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int max_samples;
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int filter_length;
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int interleaved;
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int sel_options;
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uint32_t authkey;
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double max_delay;
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double max_delay_ratio;
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double max_delay_dev_ratio;
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double min_delay;
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double asymmetry;
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double offset;
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} SourceParameters;
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#define SRC_DEFAULT_PORT 123
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#define SRC_DEFAULT_MINPOLL 6
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#define SRC_DEFAULT_MAXPOLL 10
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#define SRC_DEFAULT_PRESEND_MINPOLL 100
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#define SRC_DEFAULT_MAXDELAY 3.0
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#define SRC_DEFAULT_MAXDELAYRATIO 0.0
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#define SRC_DEFAULT_MAXDELAYDEVRATIO 10.0
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#define SRC_DEFAULT_MINSTRATUM 0
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#define SRC_DEFAULT_POLLTARGET 8
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#define SRC_DEFAULT_MAXSOURCES 4
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#define SRC_DEFAULT_MINSAMPLES (-1)
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#define SRC_DEFAULT_MAXSAMPLES (-1)
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#define SRC_DEFAULT_ASYMMETRY 1.0
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#define INACTIVE_AUTHKEY 0
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/* Flags for source selection */
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#define SRC_SELECT_NOSELECT 0x1
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#define SRC_SELECT_PREFER 0x2
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#define SRC_SELECT_TRUST 0x4
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#define SRC_SELECT_REQUIRE 0x8
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#endif /* GOT_SRCPARAMS_H */
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