cli.py 文件源码

def sigquit_handler(sig, frame):
    """Helps debug deadlocks by printing stacktraces when this gets a SIGQUIT
    e.g. kill -s QUIT <PID> or CTRL+\
    """
    print("Dumping stack traces for all threads in PID {}".format(os.getpid()))
    id_to_name = dict([(th.ident, th.name) for th in threading.enumerate()])
    code = []
    for thread_id, stack in sys._current_frames().items():
        code.append("\n# Thread: {}({})"
                    .format(id_to_name.get(thread_id, ""), thread_id))
        for filename, line_number, name, line in traceback.extract_stack(stack):
            code.append('File: "{}", line {}, in {}'
                        .format(filename, line_number, name))
            if line:
                code.append("  {}".format(line.strip()))
    print("\n".join(code))