msgctl - SysV IPC message control operations
msgctl ID,CMD,ARG
Calls the System
V
IPC function
msgctl(2).
You'll probably have to say
use IPC::SysV;
first to get the correct constant definitions. If
CMD is IPC_STAT
, then
ARG must be a variable which will hold the returned msqid_ds
structure. Returns like ioctl(): the undefined value for error, ``0
but true'' for zero, or the actual return value otherwise. See also
IPC::SysV
and IPC::Semaphore::Msg
documentation.
If rather than formatting bugs, you encounter substantive content errors in these documents, such as mistakes in the explanations or code, please use the perlbug utility included with the Perl distribution.