shmread - read SysV shared memory

- NAME
- SYNOPSIS
- DESCRIPTION

# NAME

shmread - read SysV shared memory

# SYNOPSIS

shmread ID,VAR,POS,SIZE

# DESCRIPTION

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.

shmread - read SysV shared memory