visualstudio_py_debugger.py 文件源码

def block(self, block_lambda, keep_stopped_on_line = False):
        """blocks the current thread until the debugger resumes it"""
        assert not self._is_blocked
        #assert self.id == thread.get_ident(), 'wrong thread identity' + str(self.id) + ' ' + str(thread.get_ident())    # we should only ever block ourselves

        # send thread frames before we block
        self.enum_thread_frames_locally()

        if not keep_stopped_on_line:
            self.stopped_on_line = self.cur_frame.f_lineno

        # need to synchronize w/ sending the reason we're blocking
        self._block_starting_lock.acquire()
        self._is_blocked = True
        block_lambda()
        self._block_starting_lock.release()

        while not DETACHED:
            self._block_lock.acquire()
            if self.unblock_work is None:
                break

            # the debugger wants us to do something, do it, and then block again
            self._is_working = True
            self.unblock_work()
            self.unblock_work = None
            self._is_working = False

        self._block_starting_lock.acquire()
        assert self._is_blocked
        self._is_blocked = False
        self._block_starting_lock.release()