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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:09:41 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:09:41 +0000 |
commit | 3271d1ac389d2ec93db9c5b9ce0991ce478476cf (patch) | |
tree | 35ff7d180e1ccc061f28535d7435b5ba1789e734 /localp.h | |
parent | Initial commit. (diff) | |
download | chrony-3271d1ac389d2ec93db9c5b9ce0991ce478476cf.tar.xz chrony-3271d1ac389d2ec93db9c5b9ce0991ce478476cf.zip |
Adding upstream version 4.3.upstream/4.3upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | localp.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/localp.h b/localp.h new file mode 100644 index 0000000..6f65e43 --- /dev/null +++ b/localp.h @@ -0,0 +1,74 @@ +/* + chronyd/chronyc - Programs for keeping computer clocks accurate. + + ********************************************************************** + * Copyright (C) Richard P. Curnow 1997-2002 + * + * 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. + * + ********************************************************************** + + ======================================================================= + + Private include file for local.c and all system dependent + driver modules. + */ + + +#ifndef GOT_LOCALP_H +#define GOT_LOCALP_H + +/* System driver to read the current local frequency, in ppm relative + to nominal. A positive value indicates that the local clock runs + fast when uncompensated. */ +typedef double (*lcl_ReadFrequencyDriver)(void); + +/* System driver to set the current local frequency, in ppm relative + to nominal. A positive value indicates that the local clock runs + fast when uncompensated. Return actual frequency (may be different + from the requested frequency due to clamping or rounding). */ +typedef double (*lcl_SetFrequencyDriver)(double freq_ppm); + +/* System driver to accrue an offset. A positive argument means slew + the clock forwards. The suggested correction rate of time to correct the + offset is given in 'corr_rate'. */ +typedef void (*lcl_AccrueOffsetDriver)(double offset, double corr_rate); + +/* System driver to apply a step offset. A positive argument means step + the clock forwards. */ +typedef int (*lcl_ApplyStepOffsetDriver)(double offset); + +/* System driver to convert a raw time to an adjusted (cooked) time. + The number of seconds returned in 'corr' have to be added to the + raw time to get the corrected time */ +typedef void (*lcl_OffsetCorrectionDriver)(struct timespec *raw, double *corr, double *err); + +/* System driver to schedule leap seconds and set TAI-UTC offset */ +typedef void (*lcl_SetLeapDriver)(int leap, int tai_offset); + +/* System driver to set the synchronisation status */ +typedef void (*lcl_SetSyncStatusDriver)(int synchronised, double est_error, double max_error); + +extern void lcl_InvokeDispersionNotifyHandlers(double dispersion); + +extern void +lcl_RegisterSystemDrivers(lcl_ReadFrequencyDriver read_freq, + lcl_SetFrequencyDriver set_freq, + lcl_AccrueOffsetDriver accrue_offset, + lcl_ApplyStepOffsetDriver apply_step_offset, + lcl_OffsetCorrectionDriver offset_convert, + lcl_SetLeapDriver set_leap, + lcl_SetSyncStatusDriver set_sync_status); + +#endif /* GOT_LOCALP_H */ |