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correctly mark tombstones

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CPunch
2020-11-17 03:36:56 -06:00
parent 1329b72fcd
commit 1189dc4b78
2 changed files with 10 additions and 8 deletions
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10
src/ctable.c
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@@ -122,7 +122,7 @@ static void resizeTbl(CState *state, CTable *tbl, size_t newCapacity) {
cosmoM_freearray(state, CTableEntry, entries, newCapacity);
int tombs = tbl->tombstones;
tbl->tombstones = 0;
resizeTbl(state, tbl, nextPow2((tbl->count - tombs) * GROW_FACTOR));
resizeTbl(state, tbl, nextPow2((tbl->capacity - tombs) * GROW_FACTOR));
cosmoM_updateThreshhold(state); // force a threshhold update since this *could* be such a huge memory difference
return;
}
@@ -154,7 +154,6 @@ static void resizeTbl(CState *state, CTable *tbl, size_t newCapacity) {
tbl->table = entries;
tbl->capacity = newCapacity;
tbl->count = newCount;
tbl->tombstones = 0;
}
// returns a pointer to the allocated value
@@ -169,8 +168,11 @@ COSMO_API CValue* cosmoT_insert(CState *state, CTable *tbl, CValue key) {
// insert into the table
CTableEntry *entry = findEntry(tbl->table, tbl->capacity - 1, key); // -1 for our capacity mask
if (IS_NIL(entry->key) && IS_NIL(entry->val)) // is it empty?
tbl->count++;
if (IS_NIL(entry->key))
if (IS_NIL(entry->val)) // is it empty?
tbl->count++;
else // it's a tombstone, mark it alive!
tbl->tombstones--;
entry->key = key;
return &entry->val;