msgget
See the current Perl documentation for msgget.
Here is our local, out-dated (pre-5.6) version:
msgget - get SysV IPC message queue
msgget KEY,FLAGS
Calls the System
V
IPC function
msgget(2).
Returns the message queue id, or the undefined value if there is an error. See also
IPC::SysV
and IPC::SysV::Msg
documentation.