visualstudio_py_debugger.py 文件源码

def update_all_thread_stacks(blocking_thread):
    THREADS_LOCK.acquire()
    all_threads = list(THREADS.values())
    THREADS_LOCK.release()

    for cur_thread in all_threads:
        if cur_thread is blocking_thread:
            continue

        cur_thread._block_starting_lock.acquire()
        if not cur_thread._is_blocked:
            # release the lock, we're going to run user code to evaluate the frames
            cur_thread._block_starting_lock.release()        

            frames = cur_thread.get_frame_list()

            # re-acquire the lock and make sure we're still not blocked.  If so send
            # the frame list.
            cur_thread._block_starting_lock.acquire()
            if not cur_thread._is_blocked:
                cur_thread.send_frame_list(frames)

        cur_thread._block_starting_lock.release()