Added: Hash store

src/hash-store.c

@@ -0,0 +1,59 @@
+
+internal Table
+hash_store_initialize(void)
+{
+  Table result = {0};
+
+  result.ptr_arena = arena_initialize(KB(1));
+  result.str8_arena = arena_initialize(KB(1));
+
+  result.str8_ptr = arena_push(result.ptr_arena, String8);
+  result.str8_count = 1;
+  result.str8_ptr[0] = str8_lit("");
+
+  return result;
+}
+
+internal Key
+hash_store_string8_to_key(Table *table, String8 value)
+{
+  Key result = 0;
+  u32 count = table->str8_count;
+  result = count;
+
+  String8 *str8_ptr = table->str8_ptr;
+  for (u32 index = 0; index < count; index += 1, str8_ptr += 1)
+  {
+    if (string8_match(*str8_ptr, value))
+    {
+      result = index;
+      break;
+    }
+  }
+
+  if (result == count)
+  {
+    String8 *new_str8 = arena_push(table->ptr_arena, String8);
+    new_str8->content =
+      (u8*) arena_allocate(table->str8_arena, sizeof(u8) * value.length);
+    new_str8->length = value.length;
+
+    memory_copy(new_str8->content, value.content, value.length);
+    table->str8_count += 1;
+  }
+
+  return result;
+}
+
+internal String8
+hash_store_string8_from_key(Table *table, Key index)
+{
+  String8 result = {0};
+
+  if (index < table->str8_count)
+    {
+      result = table->str8_ptr[index];
+    }
+
+  return result;
+}