1 files changed, 74 insertions, 0 deletions
diff --git a/localp.h b/localp.h
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+/*
+  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 */