nc 0.9.7

Access system calls directly
Documentation 
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/// Unlock memory.
///
/// # Examples
///
/// ```
/// let ret = unsafe { nc::mlockall(nc::MCL_CURRENT) };
/// assert!(ret.is_ok() || ret == Err(nc::ENOMEM));
/// let ret = unsafe { nc::munlockall() };
/// assert!(ret.is_ok());
/// ```
pub unsafe fn munlockall() -> Result<(), Errno> {
    syscall0(SYS_MUNLOCKALL).map(drop)
}