Please note: Many features of this site require JavaScript. You appear to have JavaScript disabled, or are running a non-JavaScript capable web browser.
To get the best experience, please enable JavaScript or download a modern web browser such as Internet Explorer 8, Firefox, Safari, or Google Chrome.
Calls the System V IPC function shmctl. 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 that will hold the returned shmid_ds
structure. Returns like ioctl: undef for error; "0
but
true" for zero; and the actual return value otherwise.
See also SysV IPC in perlipc and IPC::SysV
documentation.
Portability issues: shmctl in perlport.
