Write SysV shared memory

Daftar Isi

• shmwrite ID,STRING,POS,SIZE

  Reads or writes the System V shared memory segment ID starting atposition POS for size SIZE by attaching to it, copying in/out, anddetaching from it. When reading, VAR must be a variable that willhold the data read. When writing, if STRING is too long, only SIZEbytes are used; if STRING is too short, nulls are written to fill outSIZE 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.