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shmwrite

Perl 5 version 14.0 documentation
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shmwrite

  • shmwrite ID,STRING,POS,SIZE

    Reads or writes the System V shared memory segment ID starting at position POS for size SIZE by attaching to it, copying in/out, and detaching from it. When reading, VAR must be a variable that will hold the data read. When writing, if STRING is too long, only SIZE bytes are used; if STRING is too short, nulls are written to fill out SIZE bytes. Return true if successful, or false if there is an error. shmread() taints the variable. See also SysV IPC in perlipc, IPC::SysV documentation, and the IPC::Shareable module from CPAN.