test_ffi_obj.py 文件源码

def test_init_once_multithread_failure():
    if sys.version_info < (3,):
        import thread
    else:
        import _thread as thread
    import time
    def do_init():
        seen.append('init!')
        time.sleep(1)
        seen.append('oops')
        raise ValueError
    ffi = _cffi1_backend.FFI()
    seen = []
    for i in range(3):
        def f():
            py.test.raises(ValueError, ffi.init_once, do_init, "tag")
        thread.start_new_thread(f, ())
    i = 0
    while len(seen) < 6:
        i += 1
        assert i < 20
        time.sleep(0.51)
    assert seen == ['init!', 'oops'] * 3