// switch from the dispatch table which notices safepoints back to the
// normal dispatch table.  So that we can notice single stepping points,
// keep the safepoint dispatch table if we are single stepping in JVMTI.
// Note that the should_post_single_step test is exactly as fast as the
// JvmtiExport::_enabled test and covers both cases.

void TemplateInterpreter::ignore_safepoints() {

  {- -------------------------------------------
  (1) (既に変更済みであれば, 何もしない)
      ---------------------------------------- -}

      if (_notice_safepoints) {

  {- -------------------------------------------
  (1) (JVMTI の SingleStep イベントが有効になっている場合は, 元に戻す必要は無いので, 何もしない.
       See: [here](no7882EDP.html) for details)
      ---------------------------------------- -}

        if (!JvmtiExport::should_post_single_step()) {

  {- -------------------------------------------
  (1) copy_table() を呼んで, _normal_table の内容を _active_table にコピーする.
      ---------------------------------------- -}

          // switch to normal dispatch table
          _notice_safepoints = false;
          copy_table((address*)&_normal_table, (address*)&_active_table, sizeof(_active_table) / sizeof(address));
        }
      }
    }