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General optimizations

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This commit is contained in:
gingerBill
2023-01-11 18:10:27 +00:00
parent 3c7e45a46f
commit 7124d541a1
5 changed files with 105 additions and 17 deletions
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36
src/ptr_map.cpp
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@@ -192,6 +192,26 @@ gb_internal void map_rehash(PtrMap<K, V> *h, isize new_count) {
template <typename K, typename V>
gb_internal V *map_get(PtrMap<K, V> *h, K key) {
MapIndex hash_index = MAP_SENTINEL;
MapIndex entry_prev = MAP_SENTINEL;
MapIndex entry_index = MAP_SENTINEL;
if (h->hashes.count != 0) {
u32 hash = ptr_map_hash_key(key);
hash_index = cast(MapIndex)(hash & (h->hashes.count-1));
entry_index = h->hashes.data[hash_index];
while (entry_index != MAP_SENTINEL) {
auto *entry = &h->entries.data[entry_index];
if (entry->key == key) {
return &entry->value;
}
entry_prev = entry_index;
entry_index = entry->next;
}
}
return nullptr;
}
template <typename K, typename V>
gb_internal V *map_try_get(PtrMap<K, V> *h, K key, MapFindResult *fr_) {
MapFindResult fr = {MAP_SENTINEL, MAP_SENTINEL, MAP_SENTINEL};
if (h->hashes.count != 0) {
u32 hash = ptr_map_hash_key(key);
@@ -206,9 +226,25 @@ gb_internal V *map_get(PtrMap<K, V> *h, K key) {
fr.entry_index = entry->next;
}
}
if (h->hashes.count == 0 || map__full(h)) {
map_grow(h);
}
if (fr_) *fr_ = fr;
return nullptr;
}
template <typename K, typename V>
gb_internal void map_set_internal_from_try_get(PtrMap<K, V> *h, K key, V const &value, MapFindResult const &fr) {
MapIndex index = map__add_entry(h, key);
if (fr.entry_prev != MAP_SENTINEL) {
h->entries.data[fr.entry_prev].next = index;
} else {
h->hashes.data[fr.hash_index] = index;
}
h->entries.data[index].value = value;
}
template <typename K, typename V>
gb_internal V &map_must_get(PtrMap<K, V> *h, K key) {
V *ptr = map_get(h, key);