unix_events.py 文件源码

def _compute_returncode(self, status):
        if os.WIFSIGNALED(status):
            # The child process died because of a signal.
            return -os.WTERMSIG(status)
        elif os.WIFEXITED(status):
            # The child process exited (e.g sys.exit()).
            return os.WEXITSTATUS(status)
        else:
            # The child exited, but we don't understand its status.
            # This shouldn't happen, but if it does, let's just
            # return that status; perhaps that helps debug it.
            return status


#
# ?????:
#