Method flush_unused

sql/table_cache.cc:1308–1320

*/

void TDC_element::flush_unused(bool mark_flushed)
{
  Share_free_tables::List purge_tables;

  mysql_mutex_lock(&LOCK_table_share);
  if (mark_flushed)
    flushed= true;
  tc_remove_all_unused_tables(this, &purge_tables);
  mysql_mutex_unlock(&LOCK_table_share);

  while (auto table= purge_tables.pop_front())
    intern_close_table(table);
}