pub unsafe extern "C" fn virEventAddTimeout(
frequency: c_int,
cb: virEventTimeoutCallback,
opaque: *mut c_void,
ff: virFreeCallback,
) -> c_intpub unsafe extern "C" fn virEventAddTimeout(
frequency: c_int,
cb: virEventTimeoutCallback,
opaque: *mut c_void,
ff: virFreeCallback,
) -> c_int