e147f2f11e
Since the kernel USER_HZ constant was introduced and the internal HZ can't be reliably detected in user-space, the frequency scaling constant used with older kernels is just a random guess. Remove the scaling completely and let the closed loop compensate for the error. To prevent thrashing between two states when the system's frequency error is close to a multiple of USER_HZ, stick to the current tick value if it's next to the new required tick. This is used only on archs where USER_HZ is 100 as the frequency adjustment is limited to 500 ppm. The linux_hz and linux_freq_scale directives are no longer supported, but allowed by the config parser.
108 lines
3.8 KiB
C
108 lines
3.8 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 1997-2003
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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 for configuration module
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*/
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#ifndef GOT_CONF_H
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#define GOT_CONF_H
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#include "addressing.h"
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extern void CNF_SetRestarted(int);
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extern char *CNF_GetRtcDevice(void);
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extern void CNF_ReadFile(const char *filename);
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extern void CNF_ParseLine(const char *filename, int number, char *line);
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extern void CNF_AddInitSources(void);
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extern void CNF_AddSources(void);
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extern void CNF_AddBroadcasts(void);
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extern void CNF_AddRefclocks(void);
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extern unsigned short CNF_GetAcquisitionPort(void);
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extern unsigned short CNF_GetNTPPort(void);
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extern char *CNF_GetDriftFile(void);
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extern char *CNF_GetLogDir(void);
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extern char *CNF_GetDumpDir(void);
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extern int CNF_GetLogBanner(void);
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extern int CNF_GetLogMeasurements(void);
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extern int CNF_GetLogStatistics(void);
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extern int CNF_GetLogTracking(void);
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extern int CNF_GetLogRtc(void);
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extern int CNF_GetLogRefclocks(void);
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extern int CNF_GetLogTempComp(void);
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extern char *CNF_GetKeysFile(void);
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extern char *CNF_GetRtcFile(void);
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extern unsigned long CNF_GetCommandKey(void);
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extern int CNF_GetGenerateCommandKey(void);
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extern int CNF_GetDumpOnExit(void);
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extern int CNF_GetManualEnabled(void);
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extern int CNF_GetCommandPort(void);
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extern int CNF_GetRtcOnUtc(void);
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extern int CNF_GetRtcSync(void);
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extern void CNF_GetMakeStep(int *limit, double *threshold);
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extern void CNF_GetMaxChange(int *delay, int *ignore, double *offset);
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extern void CNF_GetLogChange(int *enabled, double *threshold);
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extern void CNF_GetMailOnChange(int *enabled, double *threshold, char **user);
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extern int CNF_GetNoClientLog(void);
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extern unsigned long CNF_GetClientLogLimit(void);
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extern void CNF_GetFallbackDrifts(int *min, int *max);
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extern void CNF_GetBindAddress(int family, IPAddr *addr);
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extern void CNF_GetBindAcquisitionAddress(int family, IPAddr *addr);
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extern void CNF_GetBindCommandAddress(int family, IPAddr *addr);
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extern char *CNF_GetPidFile(void);
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extern char *CNF_GetLeapSecTimezone(void);
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/* Value returned in ppm, as read from file */
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extern double CNF_GetMaxUpdateSkew(void);
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extern double CNF_GetMaxClockError(void);
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extern double CNF_GetCorrectionTimeRatio(void);
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extern double CNF_GetMaxSlewRate(void);
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extern double CNF_GetReselectDistance(void);
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extern double CNF_GetStratumWeight(void);
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extern double CNF_GetCombineLimit(void);
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extern int CNF_AllowLocalReference(int *stratum);
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extern void CNF_SetupAccessRestrictions(void);
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extern int CNF_GetSchedPriority(void);
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extern int CNF_GetLockMemory(void);
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extern void CNF_GetTempComp(char **file, double *interval, double *T0, double *k0, double *k1, double *k2);
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extern char *CNF_GetUser(void);
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extern int CNF_GetMaxSamples(void);
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extern int CNF_GetMinSamples(void);
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extern double CNF_GetRtcAutotrim(void);
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extern char *CNF_GetHwclockFile(void);
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extern int CNF_GetInitSources(void);
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extern double CNF_GetInitStepThreshold(void);
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#endif /* GOT_CONF_H */
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