Function nc::mq_timedsend

pub fn mq_timedsend(
    mqdes: mqd_t, 
    msg: &[u8], 
    msg_len: usize, 
    msg_prio: u32, 
    abs_timeout: &timespec_t
) -> Result<(), Errno>

Send message to a message queue

let name = "nc-mq-timedsend";
let ret = nc::mq_open(
    name,
    nc::O_CREAT | nc::O_RDWR,
    (nc::S_IRUSR | nc::S_IWUSR) as nc::umode_t,
    None,
);
assert!(ret.is_ok());
let mq_id = ret.unwrap();

let mut attr = nc::mq_attr_t::default();
let ret = nc::mq_getsetattr(mq_id, None, Some(&mut attr));
assert!(ret.is_ok());
println!("attr: {:?}", attr);

let msg = "Hello, Rust";
let prio = 0;
let timeout = nc::timespec_t {
    tv_sec: 1,
    tv_nsec: 0,
};
let ret = nc::mq_timedsend(mq_id, msg.as_bytes(), msg.len(), prio, &timeout);
assert!(ret.is_ok());

let ret = nc::mq_getsetattr(mq_id, None, Some(&mut attr));
assert!(ret.is_ok());
assert_eq!(attr.mq_curmsgs, 1);

assert!(nc::close(mq_id).is_ok());
assert!(nc::mq_unlink(name).is_ok());