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sources: add minsources option

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This sets the minimum number of selectable sources needed to update the
local clock.
This commit is contained in:
Miroslav Lichvar
2014-10-20 17:46:33 +02:00
parent 6744ad392d
commit 1bb2732056
4 changed files with 39 additions and 2 deletions
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8
sources.c
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@@ -74,6 +74,7 @@ typedef enum {
SRC_STALE, /* Has older samples than others */
SRC_FALSETICKER, /* Doesn't agree with others */
SRC_JITTERY, /* Scatter worse than other's dispersion (not used) */
SRC_WAITS_SOURCES, /* Not enough sources, selection postponed */
SRC_NONPREFERRED, /* Others have prefer option */
SRC_WAITS_UPDATE, /* No updates, selection postponed */
SRC_DISTANT, /* Others have shorter root distance */
@@ -807,11 +808,13 @@ SRC_SelectSource(SRC_Instance updated_inst)
n_sel_sources = j;
#endif
if (n_sel_sources == 0) {
if (n_sel_sources == 0 || n_sel_sources < CNF_GetMinSources()) {
if (selected_source_index != INVALID_SOURCE) {
log_selection_message("Can't synchronise: no selectable sources", NULL);
log_selection_message("Can't synchronise: %s selectable sources",
n_sel_sources ? "not enough" : "no");
selected_source_index = INVALID_SOURCE;
}
mark_ok_sources(SRC_WAITS_SOURCES);
return;
}
@@ -1225,6 +1228,7 @@ SRC_ReportSource(int index, RPT_SourceReport *report, struct timeval *now)
case SRC_JITTERY:
report->state = RPT_JITTERY;
break;
case SRC_WAITS_SOURCES:
case SRC_NONPREFERRED:
case SRC_WAITS_UPDATE:
case SRC_DISTANT: