test_gipc.py 文件源码

def test_lock_out_of_context_single(self):
        r, w = pipe()
        g = gevent.spawn(lambda r: r.get(), r)
        gevent.sleep(SHORTTIME)
        with raises(GIPCLocked):
            with r:
                pass
                # The context manager can't close `r`, as it is locked in `g`.
        g.kill(block=False)
        # Ensure killing via 'context switch', i.e. yield control to other
        # coroutines (otherwise the subsequent close attempt will fail with
        # `GIPCLocked` error).
        gevent.sleep(-1)
        # Close writer first. otherwise, `os.close(r._fd)` would block on Win.
        w.close()
        r.close()