Method make_callback

src/plugin/test/infkern_finder.cpp:25–37

    SymbolVar x;

    auto make_callback(SymbolVar x) {
        auto cb = [&](DeviceTensorND& dv) {
            dv.comp_node().sync();
            entered.store(true);
            while (should_sleep.load())
                ;
            entered.store(false);
        };
        auto cbx = opr::CallbackInjector::make(x, cb).rename("cbx"),
             y = (cbx * 23).rename("cby");
        expected_bad_opr = cbx.node()->owner_opr();
        return y;
    }

    void SetUp() override {
        host_x = gen({1});