/**
* Inserts a new value to a key that may already be in ghash.
*
* Avoids #BLI_smallhash_remove, #BLI_smallhash_insert calls (double lookups)
*
* \returns true if a new key has been added.
*/
bool BLI_smallhash_reinsert(SmallHash *sh, uintptr_t key, void *item)
{
SmallHashEntry *e = smallhash_lookup(sh, key);
if (e) {
e->val = item;
return false;
}
else {
BLI_smallhash_insert(sh, key, item);
return true;
}
}
bool BLI_smallhash_remove(SmallHash *sh, uintptr_t key)
{
SmallHashEntry *e = smallhash_lookup(sh, key);
if (e) {
e->key = SMHASH_KEY_UNUSED;
e->val = SMHASH_CELL_UNUSED;
sh->nentries--;
return true;
}
else {
return false;
}
}
bool BLI_smallhash_haskey(SmallHash *sh, uintptr_t key)
{
SmallHashEntry *e = smallhash_lookup(sh, key);
return (e != NULL);
}
void *BLI_smallhash_lookup(SmallHash *sh, uintptr_t key)
{
SmallHashEntry *e = smallhash_lookup(sh, key);
return e ? e->val : NULL;
}