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shmread - read SysV shared memory |
shmread - read SysV shared memory
shmread ID,VAR,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 the perlipc manpage,
IPC::SysV documentation, and the IPC::Shareable module from
CPAN.
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shmread - read SysV shared memory |