1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
/*
chronyd/chronyc - Programs for keeping computer clocks accurate.
**********************************************************************
* Copyright (C) Miroslav Lichvar 2018
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
**********************************************************************
=======================================================================
Header file for sample filter.
*/
#ifndef GOT_SAMPLEFILT_H
#define GOT_SAMPLEFILT_H
#include "ntp.h"
typedef struct SPF_Instance_Record *SPF_Instance;
extern SPF_Instance SPF_CreateInstance(int min_samples, int max_samples,
double max_dispersion, double combine_ratio);
extern void SPF_DestroyInstance(SPF_Instance filter);
extern int SPF_AccumulateSample(SPF_Instance filter, NTP_Sample *sample);
extern int SPF_GetLastSample(SPF_Instance filter, NTP_Sample *sample);
extern int SPF_GetNumberOfSamples(SPF_Instance filter);
extern int SPF_GetMaxSamples(SPF_Instance filter);
extern double SPF_GetAvgSampleDispersion(SPF_Instance filter);
extern void SPF_DropSamples(SPF_Instance filter);
extern int SPF_GetFilteredSample(SPF_Instance filter, NTP_Sample *sample);
extern void SPF_SlewSamples(SPF_Instance filter, struct timespec *when,
double dfreq, double doffset);
extern void SPF_CorrectOffset(SPF_Instance filter, double doffset);
extern void SPF_AddDispersion(SPF_Instance filter, double dispersion);
#endif
|
