nc 0.9.7

Access system calls directly
Documentation 
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/// Set the process group ID (PGID) of the process specified by `pid` to `pgid`.
///
/// # Examples
///
/// ```
/// let ret = unsafe { nc::setpgid(nc::getpid(), 1) };
/// assert!(ret.is_err());
/// assert_eq!(ret, Err(nc::EPERM));
/// ```
pub unsafe fn setpgid(pid: pid_t, pgid: pid_t) -> Result<(), Errno> {
    let pid = pid as usize;
    let pgid = pgid as usize;
    syscall2(SYS_SETPGID, pid, pgid).map(drop)
}