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shmctl

Perl 5 version 12.2 documentation
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shmctl

Perl functions A-Z | Perl functions by category | The 'perlfunc' manpage
  • shmctl ID,CMD,ARG

    Calls the System V IPC function shmctl. You'll probably have to say

    1.     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: the undefined value for error, "0 but true" for zero, or the actual return value otherwise. See also SysV IPC in perlipc and IPC::SysV documentation.