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shmwrite

Perl 5 version 20.0 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, false on error. shmread() taints the variable. See also SysV IPC in perlipc, IPC::SysV , and the IPC::Shareable module from CPAN.

    Portability issues: shmread in perlport and shmwrite in perlport.