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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); cosmoM_freearray(state, CTableEntry, entries, newCapacity);
int tombs = tbl->tombstones; int tombs = tbl->tombstones;
tbl->tombstones = 0; 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 cosmoM_updateThreshhold(state); // force a threshhold update since this *could* be such a huge memory difference
return; return;
} }
@ -154,7 +154,6 @@ static void resizeTbl(CState *state, CTable *tbl, size_t newCapacity) {
tbl->table = entries; tbl->table = entries;
tbl->capacity = newCapacity; tbl->capacity = newCapacity;
tbl->count = newCount; tbl->count = newCount;
tbl->tombstones = 0;
} }
// returns a pointer to the allocated value // 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 // insert into the table
CTableEntry *entry = findEntry(tbl->table, tbl->capacity - 1, key); // -1 for our capacity mask 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? if (IS_NIL(entry->key))
tbl->count++; if (IS_NIL(entry->val)) // is it empty?
tbl->count++;
else // it's a tombstone, mark it alive!
tbl->tombstones--;
entry->key = key; entry->key = key;
return &entry->val; return &entry->val;

8
src/cvalue.h
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@ -39,10 +39,10 @@ void printValue(CValue val);
COSMO_API bool cosmoV_equal(CValue valA, CValue valB); COSMO_API bool cosmoV_equal(CValue valA, CValue valB);
COSMO_API CObjString *cosmoV_toString(CState *state, CValue val); COSMO_API CObjString *cosmoV_toString(CState *state, CValue val);
#define IS_NUMBER(x) x.type == COSMO_TNUMBER #define IS_NUMBER(x) (x.type == COSMO_TNUMBER)
#define IS_BOOLEAN(x) x.type == COSMO_TBOOLEAN #define IS_BOOLEAN(x) (x.type == COSMO_TBOOLEAN)
#define IS_NIL(x) x.type == COSMO_TNIL #define IS_NIL(x) (x.type == COSMO_TNIL)
#define IS_OBJ(x) x.type == COSMO_TOBJ #define IS_OBJ(x) (x.type == COSMO_TOBJ)
// create CValues // create CValues