Function cdds_util::ddsrt_select

pub unsafe extern "C" fn ddsrt_select(
    nfds: i32, 
    readfds: *mut fd_set, 
    writefds: *mut fd_set, 
    errorfds: *mut fd_set, 
    reltime: dds_duration_t, 
    ready: *mut i32
) -> i32