Method close

net/rsocket/rsocket.cpp:66–73

    operator bool() const { return fd >= 0; }

    int close() {
        int ret = -1;
        if (fd >= 0) {
            ret = rclose(fd);
            fd = -1;
        }
        return ret;
    }

    Object* get_underlay_object(uint64_t) { return (Object*)(uint64_t)fd; }