PerlIO::mmap - Memory mapped IO
open my $fh, '<:mmap', $filename;
Perl Programmers Reference Guide PerlIO::mmap(3) NAME PerlIO::mmap - Memory mapped IO SYNOPSIS open my $fh, '<:mmap', $filename; DESCRIPTION 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;". ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+-----------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+-----------------------+ |Availability | runtime/perl-532 | +---------------+-----------------------+ |Stability | Pass-through volatile | +---------------+-----------------------+ NOTES Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from http://www.cpan.org/src/5.0/perl-5.32.0.tar.gz. Further information about this software can be found on the open source community website at https://www.perl.org/. perl v5.32.0 2020-06-14 PerlIO::mmap(3)