CHI::Driver::FastMmap − Persistent interprocess cache via mmap’ed files
version 0.61
use CHI;
my $cache = CHI−>new(
driver => 'FastMmap',
root_dir => '/path/to/cache/root',
cache_size => '1m'
);
This cache driver uses Cache::FastMmap to store data in an mmap’ed file. It is very fast, and can be used to share data between processes on a single host, though not between hosts.
To support namespaces, this driver takes a directory parameter rather than a file, and creates one Cache::FastMMap file for each namespace.
Because CHI handles serialization automatically, we pass the "raw_values" flag as 1; and to conform to the CHI API, we pass "unlink_on_exit" as 0, so that all cache files are permanent.
You will need to install Cache::FastMmap from CPAN to use this driver.
root_dir
Path to the directory that will contain the share files, one per namespace. Defaults to a directory called ’chi−driver−fastmmap’ under the OS default temp directory (e.g. ’/tmp’ on UNIX).
dir_create_mode
Permissions mode to use when creating directories. Defaults to 0775.
Any other constructor options not recognized by CHI are passed along to Cache::FastMmap−>new.
fm_cache
Returns a handle to the underlying Cache::FastMmap object. You can use this to call FastMmap-specific methods that are not supported by the general API, e.g.
$self−>fm_cache−>get_and_set("key", sub { ... });
CHI
Jonathan Swartz <[email protected]>
This software is copyright (c) 2021 by Jonathan Swartz.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.