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sources: keep synchronized status with unreachable/unselectable sources

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Following RFC 5905, don't call REF_SetUnsynchronised() when there are no
reachable or selectable sources. It's up to the client to consider the
source unsynchronized when the root distance exceeds a threshold.

The unsynchronized status is still set when no majority is reached.
This commit is contained in:
Miroslav Lichvar
2014-10-16 16:26:05 +02:00
parent e930d94728
commit 049eae661a
1 changed files with 2 additions and 8 deletions
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10
sources.c
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@@ -571,7 +571,7 @@ combine_sources(int n_sel_sources, struct timeval *ref_time, double *offset,
void void
SRC_SelectSource(SRC_Instance updated_inst) SRC_SelectSource(SRC_Instance updated_inst)
{ {
int i, j, index, old_selected_index, sel_prefer; int i, j, index, sel_prefer;
struct timeval now, ref_time; struct timeval now, ref_time;
double src_offset, src_offset_sd, src_frequency, src_skew; double src_offset, src_offset_sd, src_frequency, src_skew;
double src_root_delay, src_root_dispersion; double src_root_delay, src_root_dispersion;
@@ -588,7 +588,6 @@ SRC_SelectSource(SRC_Instance updated_inst)
double max_score; double max_score;
NTP_Leap leap_status = LEAP_Normal; NTP_Leap leap_status = LEAP_Normal;
old_selected_index = selected_source_index;
if (updated_inst) if (updated_inst)
updated_inst->updates++; updated_inst->updates++;
@@ -598,7 +597,6 @@ SRC_SelectSource(SRC_Instance updated_inst)
if (selected_source_index != INVALID_SOURCE) { if (selected_source_index != INVALID_SOURCE) {
log_selection_message("Can't synchronise: no sources", NULL); log_selection_message("Can't synchronise: no sources", NULL);
selected_source_index = INVALID_SOURCE; selected_source_index = INVALID_SOURCE;
REF_SetUnsynchronised();
} }
return; return;
} }
@@ -748,6 +746,7 @@ SRC_SelectSource(SRC_Instance updated_inst)
if (selected_source_index != INVALID_SOURCE) { if (selected_source_index != INVALID_SOURCE) {
log_selection_message("Can't synchronise: no majority", NULL); log_selection_message("Can't synchronise: no majority", NULL);
REF_SetUnsynchronised();
} }
selected_source_index = INVALID_SOURCE; selected_source_index = INVALID_SOURCE;
@@ -990,11 +989,6 @@ SRC_SelectSource(SRC_Instance updated_inst)
} }
selected_source_index = INVALID_SOURCE; selected_source_index = INVALID_SOURCE;
} }
if (selected_source_index == INVALID_SOURCE &&
selected_source_index != old_selected_index) {
REF_SetUnsynchronised();
}
} }
/* ================================================== */ /* ================================================== */