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reference: cook timestamp when setting reference

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This is a partial revert of 8aa9eb19c8.
With the new generic driver cooking is cheap and it should be slighly
more accurate than reusing offset correction from the scheduler
timestamps.
This commit is contained in:
Miroslav Lichvar 2014-06-04 16:44:14 +02:00
parent a02d7555c2
commit e9a8503c6b
1 changed files with 5 additions and 8 deletions
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13
reference.c
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@ -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);