PerlIO::mmap3p

Memory mapped io

Usage

 open my $fh, '<:mmap', $filename;

Overview

This layer does "read" and "write" operations by mmap()ing the file if possible, but falls back to the default behavior if not.

Implementation note

"PerlIO::mmap" only exists to use XSLoader to load C code that provides support for using memory mapped IO. One does not need to explicitly "use PerlIO::mmap;".

Releases

28 releases since OpenBSD 5.4; the text changed 19 times.

5.4–5.5
5.6
5.7
5.8–5.9
6.0
6.1
6.2
6.3–6.4
6.5
6.6
6.7
6.8
6.9–7.2
7.3
7.4
7.5
7.6
7.7–7.8
7.9
8.0