IPC::SysV

View as PDF

• NAME
• SYNOPSIS
• DESCRIPTION
• SEE ALSO
• AUTHORS
• COPYRIGHT

NAME

IPC::SysV - SysV IPC constants

SYNOPSIS

    use IPC::SysV qw(IPC_STAT IPC_PRIVATE);

DESCRIPTION

IPC::SysV defines and conditionally exports all the constants defined in your system include files which are needed by the SysV IPC calls. Common ones include

   IPC_CREATE IPC_EXCL IPC_NOWAIT IPC_PRIVATE IPC_RMID IPC_SET IPC_STAT
   GETVAL SETVAL GETPID GETNCNT GETZCNT GETALL SETALL
   SEM_A SEM_R SEM_UNDO
   SHM_RDONLY SHM_RND SHMLBA

and auxiliary ones

   S_IRUSR S_IWUSR S_IRWXU
   S_IRGRP S_IWGRP S_IRWXG
   S_IROTH S_IWOTH S_IRWXO

but your system might have more.

• ftok( PATH, ID )

  Return a key based on PATH and ID, which can be used as a key for msgget, semget and shmget. See ftok

SEE ALSO

IPC::Msg, IPC::Semaphore, ftok

AUTHORS

Graham Barr <gbarr@pobox.com> Jarkko Hietaniemi <jhi@iki.fi>

COPYRIGHT

Copyright (c) 1997 Graham Barr. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.