RAISED_EXCEPTION 2146 thread.c           if (th->raised_flag & RAISED_EXCEPTION) {
RAISED_EXCEPTION 2149 thread.c           th->raised_flag |= RAISED_EXCEPTION;
RAISED_EXCEPTION 2156 thread.c           if (!(th->raised_flag & RAISED_EXCEPTION)) {
RAISED_EXCEPTION 2159 thread.c           th->raised_flag &= ~RAISED_EXCEPTION;