=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