Function wake

src/thread/futex.rs:85–88

(uaddr: &AtomicU32, flags: Flags, val: u32)

/// [Linux `futex` feature]: https://man7.org/linux/man-pages/man7/futex.7.html
#[inline]
pub fn wake(uaddr: &AtomicU32, flags: Flags, val: u32) -> io::Result<usize> {
    // SAFETY: The raw pointers come from references or null.
    unsafe { futex_val2(uaddr, Operation::Wake, flags, val, 0, ptr::null(), 0) }
}

/// `syscall(SYS_futex, uaddr, FUTEX_FD, val, NULL, NULL, 0)`
///