chrony/refclock.h
Miroslav Lichvar 9a901e1cb0 refclock: make maximum lock age configurable
The maxlockage option specifies in number of pulses how old can be
samples from the refclock specified by the lock option to be paired with
the pulses. Increasing this value is useful when the samples are
produced at a lower rate than the pulses.
2016-12-08 14:47:38 +01:00

75 lines
2.3 KiB
C

/*
chronyd/chronyc - Programs for keeping computer clocks accurate.
**********************************************************************
* Copyright (C) Miroslav Lichvar 2009
*
* 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 refclocks.
*/
#ifndef GOT_REFCLOCK_H
#define GOT_REFCLOCK_H
#include "srcparams.h"
#include "sources.h"
typedef struct {
char *driver_name;
char *driver_parameter;
int driver_poll;
int poll;
int filter_length;
int pps_rate;
int min_samples;
int max_samples;
int sel_options;
int max_lock_age;
uint32_t ref_id;
uint32_t lock_ref_id;
double offset;
double delay;
double precision;
double max_dispersion;
} RefclockParameters;
typedef struct RCL_Instance_Record *RCL_Instance;
typedef struct {
int (*init)(RCL_Instance instance);
void (*fini)(RCL_Instance instance);
int (*poll)(RCL_Instance instance);
} RefclockDriver;
extern void RCL_Initialise(void);
extern void RCL_Finalise(void);
extern int RCL_AddRefclock(RefclockParameters *params);
extern void RCL_StartRefclocks(void);
extern void RCL_ReportSource(RPT_SourceReport *report, struct timespec *now);
/* functions used by drivers */
extern void RCL_SetDriverData(RCL_Instance instance, void *data);
extern void *RCL_GetDriverData(RCL_Instance instance);
extern char *RCL_GetDriverParameter(RCL_Instance instance);
extern char *RCL_GetDriverOption(RCL_Instance instance, char *name);
extern int RCL_AddSample(RCL_Instance instance, struct timespec *sample_time, double offset, int leap);
extern int RCL_AddPulse(RCL_Instance instance, struct timespec *pulse_time, double second);
#endif