Function timerfd_gettime

pub unsafe fn timerfd_gettime(
    ufd: i32,
    cur_value: &mut itimerspec_t,
) -> Result<(), i32> 

Available on crate feature dep_nc only.

Get current timer via a file descriptor.

Examples

let ret = unsafe { nc::timerfd_create(nc::CLOCK_MONOTONIC, nc::TFD_CLOEXEC) };
assert!(ret.is_ok());
let fd = ret.unwrap();

let flags = 0;
let time = nc::itimerspec_t {
    it_interval: nc::timespec_t::default(),
    it_value: nc::timespec_t {
        tv_sec: 1,
        tv_nsec: 0,
    },
};
let ret = unsafe { nc::timerfd_settime(fd, flags, &time, None) };
assert!(ret.is_ok());

let mut curr_time = nc::itimerspec_t::default();
let ret = unsafe { nc::timerfd_gettime(fd, &mut curr_time) };
assert!(ret.is_ok());
println!("curr time: {curr_time:?}");

let ret = unsafe { nc::close(fd) };
assert!(ret.is_ok());