f6a9c5c1b7
Different systems may consider different time values to be valid. Don't exit on settimeofday()/adjtimex() error in case the check in UTI_IsTimeOffsetSane() isn't restrictive enough.
74 lines
3.1 KiB
C
74 lines
3.1 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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Private include file for local.c and all system dependent
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driver modules.
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*/
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#ifndef GOT_LOCALP_H
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#define GOT_LOCALP_H
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/* System driver to read the current local frequency, in ppm relative
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to nominal. A positive value indicates that the local clock runs
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fast when uncompensated. */
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typedef double (*lcl_ReadFrequencyDriver)(void);
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/* System driver to set the current local frequency, in ppm relative
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to nominal. A positive value indicates that the local clock runs
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fast when uncompensated. Return actual frequency (may be different
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from the requested frequency due to clamping or rounding). */
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typedef double (*lcl_SetFrequencyDriver)(double freq_ppm);
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/* System driver to accrue an offset. A positive argument means slew
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the clock forwards. The suggested correction rate of time to correct the
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offset is given in 'corr_rate'. */
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typedef void (*lcl_AccrueOffsetDriver)(double offset, double corr_rate);
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/* System driver to apply a step offset. A positive argument means step
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the clock forwards. */
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typedef int (*lcl_ApplyStepOffsetDriver)(double offset);
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/* System driver to convert a raw time to an adjusted (cooked) time.
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The number of seconds returned in 'corr' have to be added to the
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raw time to get the corrected time */
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typedef void (*lcl_OffsetCorrectionDriver)(struct timeval *raw, double *corr, double *err);
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/* System driver to schedule leap second */
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typedef void (*lcl_SetLeapDriver)(int leap);
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/* System driver to set the synchronisation status */
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typedef void (*lcl_SetSyncStatusDriver)(int synchronised, double est_error, double max_error);
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extern void lcl_InvokeDispersionNotifyHandlers(double dispersion);
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extern void
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lcl_RegisterSystemDrivers(lcl_ReadFrequencyDriver read_freq,
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lcl_SetFrequencyDriver set_freq,
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lcl_AccrueOffsetDriver accrue_offset,
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lcl_ApplyStepOffsetDriver apply_step_offset,
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lcl_OffsetCorrectionDriver offset_convert,
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lcl_SetLeapDriver set_leap,
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lcl_SetSyncStatusDriver set_sync_status);
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#endif /* GOT_LOCALP_H */
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