=over

=item semget KEY,NSEMS,FLAGS
X<semget>

Calls the System V IPC function L<semget(2)>.  Returns the semaphore id, or
the undefined value on error.  See also
L<perlipc/"SysV IPC"> and the documentation for
L<C<IPC::SysV>|IPC::SysV> and L<C<IPC::Semaphore>|IPC::Semaphore>.

Portability issues: L<perlport/semget>.

=back