// max_frame_count - pre-checked to be greater than or equal to 0
// stack_info_ptr - pre-checked for NULL
// thread_count_ptr - pre-checked for NULL

jvmtiError
JvmtiEnv::GetAllStackTraces(jint max_frame_count, jvmtiStackInfo** stack_info_ptr, jint* thread_count_ptr) {

  {- -------------------------------------------
  (1) (変数宣言など)
      ---------------------------------------- -}

      jvmtiError err = JVMTI_ERROR_NONE;
      JavaThread* calling_thread = JavaThread::current();

  {- -------------------------------------------
  (1) VM_GetAllStackTraces でスタックトレース情報を取得する.
      ---------------------------------------- -}

      // JVMTI get stack traces at safepoint.
      VM_GetAllStackTraces op(this, calling_thread, max_frame_count);
      VMThread::execute(&op);

  {- -------------------------------------------
  (1) 取得した結果を引数で渡されたポインタ及び返値にセットする.
      ---------------------------------------- -}

      *thread_count_ptr = op.final_thread_count();
      *stack_info_ptr = op.stack_info();
      err = op.result();

  {- -------------------------------------------
  (1) リターン
      ---------------------------------------- -}

      return err;
    } /* end GetAllStackTraces */