// post a DynamicCodeGenerated event while holding locks in the VM.

void JvmtiExport::post_dynamic_code_generated_while_holding_locks(const char* name,
                                                                  address code_begin, address code_end)
{

  {- -------------------------------------------
  (1) JvmtiThreadState::state_for() を呼んで, 
      カレントスレッドに対応する JvmtiThreadState を取得する.
      (もし対象のスレッドが JvmtiThreadState を持っていなければ, この中で確保処理が行われる)
      ---------------------------------------- -}

      // register the stub with the current dynamic code event collector
      JvmtiThreadState* state = JvmtiThreadState::state_for(JavaThread::current());

  {- -------------------------------------------
  (1) (assert)
      ---------------------------------------- -}

      // state can only be NULL if the current thread is exiting which
      // should not happen since we're trying to post an event
      guarantee(state != NULL, "attempt to register stub via an exiting thread");

  {- -------------------------------------------
  (1) JvmtiThreadState::get_dynamic_code_event_collector() を呼んで
      最も直近で生成された JvmtiDynamicCodeEventCollector オブジェクトを取得する.
      ---------------------------------------- -}

      JvmtiDynamicCodeEventCollector* collector = state->get_dynamic_code_event_collector();

  {- -------------------------------------------
  (1) (assert)
      ---------------------------------------- -}

      guarantee(collector != NULL, "attempt to register stub without event collector");

  {- -------------------------------------------
  (1) 取得した JvmtiDynamicCodeEventCollector オブジェクトに対して
      JvmtiDynamicCodeEventCollector::register_stub() を呼び出し, 
      引数で指定されたコード情報をその中に記録しておく.
      ---------------------------------------- -}

      collector->register_stub(name, code_begin, code_end);
    }