nc 0.9.8

Access system calls directly
Documentation 
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/// Obtain ID of a process CPU-time clock.
pub unsafe fn clock_getcpuclockid2(
    id: id_t,
    which: i32,
    clock_id: &mut clockid_t,
) -> Result<(), Errno> {
    let id = id as usize;
    let which = which as usize;
    let clock_id_ptr = core::ptr::from_mut(clock_id) as usize;
    unsafe { syscall3(SYS_CLOCK_GETCPUCLOCKID2, id, which, clock_id_ptr).map(drop) }
}