From: Miroslav Lichvar <mlichvar@redhat.com>
Date: Wed, 4 Jun 2014 14:44:14 +0000 (+0200)
Subject: reference: cook timestamp when setting reference
X-Git-Tag: 1.30-pre1~10
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e9a8503c6bca5d71ec93af1e66692705bb0348e3;p=thirdparty%2Fchrony.git

reference: cook timestamp when setting reference

This is a partial revert of 8aa9eb19c826f3ea4a9c2ce5e3a71b74aeeb99d0.
With the new generic driver cooking is cheap and it should be slighly
more accurate than reusing offset correction from the scheduler
timestamps.
---

diff --git a/reference.c b/reference.c
index 2d3c9cb0..80acc6ff 100644
--- a/reference.c
+++ b/reference.c
@@ -791,7 +791,7 @@ REF_SetReference(int stratum,
   double elapsed;
   double correction_rate;
   double uncorrected_offset;
-  struct timeval now, raw_now, ev_now, ev_raw_now;
+  struct timeval now, raw_now;
 
   assert(initialised);
 
@@ -824,10 +824,7 @@ REF_SetReference(int stratum,
   }
     
   LCL_ReadRawTime(&raw_now);
-
-  /* This is cheaper than calling LCL_CookTime */
-  SCH_GetLastEventTime(&ev_now, NULL, &ev_raw_now);
-  UTI_DiffTimevalsToDouble(&uncorrected_offset, &ev_now, &ev_raw_now);
+  LCL_GetOffsetCorrection(&raw_now, &uncorrected_offset, NULL);
   UTI_AddDoubleToTimeval(&raw_now, uncorrected_offset, &now);
 
   UTI_DiffTimevalsToDouble(&elapsed, &now, ref_time);
@@ -998,9 +995,9 @@ REF_SetUnsynchronised(void)
     return;
   }
 
-  /* This is cheaper than calling LCL_CookTime */
-  SCH_GetLastEventTime(&now, NULL, &now_raw);
-  UTI_DiffTimevalsToDouble(&uncorrected_offset, &now, &now_raw);
+  LCL_ReadRawTime(&now_raw);
+  LCL_GetOffsetCorrection(&now_raw, &uncorrected_offset, NULL);
+  UTI_AddDoubleToTimeval(&now_raw, uncorrected_offset, &now);
 
   if (fb_drifts) {
     schedule_fb_drift(&now);