Function acl_init

sql/sql_acl.cc:2579–2622

*/

bool acl_init(bool dont_read_acl_tables)
{
  THD  *thd;
  bool return_val;
  DBUG_ENTER("acl_init");

  acl_cache= new Hash_filo<acl_entry>(key_memory_acl_cache, ACL_CACHE_SIZE, 0,
                                      0, acl_entry_get_key, my_free,
                                      &my_charset_utf8mb3_bin);

  /*
    cache built-in native authentication plugins,
    to avoid hash searches and a global mutex lock on every connect
  */
  native_password_plugin= my_plugin_lock_by_name(0,
           &native_password_plugin_name, MYSQL_AUTHENTICATION_PLUGIN);
  old_password_plugin= my_plugin_lock_by_name(0,
           &old_password_plugin_name, MYSQL_AUTHENTICATION_PLUGIN);

  if (!native_password_plugin || !old_password_plugin)
    DBUG_RETURN(1);

  if (dont_read_acl_tables)
  {
    DBUG_RETURN(0); /* purecov: tested */
  }

  /*
    To be able to run this from boot, we allocate a temporary THD
  */
  if (!(thd=new THD(0)))
    DBUG_RETURN(1); /* purecov: inspected */
  thd->store_globals();
  thd->set_query_inner((char*) STRING_WITH_LEN("intern:acl_init"),
                       default_charset_info);
  /*
    It is safe to call acl_reload() since acl_* arrays and hashes which
    will be freed there are global static objects and thus are initialized
    by zeros at startup.
  */
  return_val= acl_reload(thd);
  delete thd;
  DBUG_RETURN(return_val);
}

static void push_new_user(const ACL_USER &user)
{