8884034104
This is a verbatim copy of the files at that stage of the repository that was built from the CVS import. It allows future development to see a bit of recent history, but without carrying around the baggage going back to 1997. If that is really required, git grafts can be used.
73 lines
2.9 KiB
C
73 lines
2.9 KiB
C
/*
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$Header: /cvs/src/chrony/localp.h,v 1.9 2002/02/28 23:27:10 richard Exp $
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=======================================================================
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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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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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. */
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typedef void (*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. */
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typedef void (*lcl_AccrueOffsetDriver)(double offset);
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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 void (*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);
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/* System driver to stop slewing the current offset and to apply is
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as an immediate step instead */
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typedef void (*lcl_ImmediateStepDriver)(void);
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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_ImmediateStepDriver immediate_step_driver);
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#endif /* GOT_LOCALP_H */
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