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Allow selecting source only when last regression was successful

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This commit is contained in:
Miroslav Lichvar
2010-12-15 17:48:30 +01:00
parent eec438a614
commit 98f79404d6
3 changed files with 20 additions and 21 deletions
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15
sources.c
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@@ -385,7 +385,6 @@ SRC_SelectSource(unsigned long match_addr)
{
int i, j, index;
struct timeval now;
int src_select_ok;
double src_offset, src_offset_sd, src_frequency, src_skew;
double src_accrued_dispersion;
int n_endpoints, j1, j2;
@@ -397,7 +396,6 @@ SRC_SelectSource(unsigned long match_addr)
int min_distance_index;
struct SelectInfo *si;
double total_root_dispersion;
int n_reachable_sources;
NTP_Leap leap_status = LEAP_Normal;
@@ -415,13 +413,11 @@ SRC_SelectSource(unsigned long match_addr)
/* Step 1 - build intervals about each source */
n_endpoints = 0;
n_reachable_sources = 0;
n_sel_sources = 0;
for (i=0; i<n_sources; i++) {
if (sources[i]->reachable && sources[i]->sel_option != SRC_SelectNoselect) {
++n_reachable_sources;
si = &(sources[i]->sel_info);
SST_GetSelectionData(sources[i]->stats, &now,
&(si->stratum),
@@ -431,10 +427,6 @@ SRC_SelectSource(unsigned long match_addr)
&(si->variance),
&(si->select_ok));
/* Eventually this might be a flag indicating whether the get
selection data call was successful. For now it always is. */
src_select_ok = 1;
si->root_distance = si->root_dispersion + 0.5 * fabs(si->root_delay);
si->lo_limit = si->best_offset - si->root_distance;
si->hi_limit = si->best_offset + si->root_distance;
@@ -446,7 +438,8 @@ SRC_SelectSource(unsigned long match_addr)
si->lo_limit, si->hi_limit);
#endif
if (src_select_ok) {
if (si->select_ok) {
++n_sel_sources;
sources[i]->status = SRC_OK; /* For now */
@@ -544,7 +537,7 @@ SRC_SelectSource(unsigned long match_addr)
best_depth, best_lo, best_hi);
#endif
if (best_depth <= n_reachable_sources/2) {
if (best_depth <= n_sel_sources/2) {
/* Could not even get half the reachable sources to agree -
clearly we can't synchronise.