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Avoid potential infinite loop from choosing the same min density again

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Eric Fischer
2017-05-31 11:02:02 -07:00
parent cf3a0800b8
commit dba24959ba
3 changed files with 16 additions and 4 deletions
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tile.cpp
+11 -3
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@@ -1803,7 +1803,11 @@ long long write_tile(FILE *geoms, long long *geompos_in, char *metabase, char *s
continue;
} else if (additional[A_DROP_DENSEST_AS_NEEDED]) {
mingap_fraction = mingap_fraction * 200000.0 / totalsize * 0.90;
mingap = choose_mingap(indices, mingap_fraction);
unsigned long long mg = choose_mingap(indices, mingap_fraction);
if (mg <= mingap) {
mg = mingap * 1.5;
}
mingap = mg;
if (mingap > arg->mingap_out) {
arg->mingap_out = mingap;
arg->still_dropping = true;
@@ -1883,7 +1887,11 @@ long long write_tile(FILE *geoms, long long *geompos_in, char *metabase, char *s
line_detail++; // to keep it the same when the loop decrements it
} else if (additional[A_DROP_DENSEST_AS_NEEDED]) {
mingap_fraction = mingap_fraction * max_tile_size / compressed.size() * 0.90;
mingap = choose_mingap(indices, mingap_fraction);
unsigned long long mg = choose_mingap(indices, mingap_fraction);
if (mg <= mingap) {
mg = mingap * 1.5;
}
mingap = mg;
if (mingap > arg->mingap_out) {
arg->mingap_out = mingap;
arg->still_dropping = true;
@@ -2272,7 +2280,7 @@ int traverse_zooms(int *geomfd, off_t *geom_size, char *metabase, char *stringpo
i = args[thread].wrote_zoom;
}
if (i == maxzoom && args[thread].still_dropping && maxzoom < MAX_ZOOM) {
if (additional[A_EXTEND_ZOOMS] && i == maxzoom && args[thread].still_dropping && maxzoom < MAX_ZOOM) {
maxzoom++;
}
}