Zytouch Driver is a userspace driver forUSB-connected projected capacitance touchscreensfrom Zytronic. It uses libusb to read data fromthe device, and the X11 XTest extensions to feed Xevents into the X server.
CHI::Driver::Memory(3pm) User Contributed Perl Documentation CHI::Driver::Memory(3pm)NAME
CHI::Driver::Memory - In-process memory based cache
VERSION
version 0.54
SYNOPSIS
use CHI;
my $hash = {};
my $cache = CHI->new( driver => 'Memory', datastore => $hash );
my $cache = CHI->new( driver => 'Memory', global => 1 );
DESCRIPTION
This cache driver stores data on a per-process basis. This is the fastest of the cache implementations, but data can not be shared between
processes. Data will remain in the cache until cleared, expired, or the process dies.
To maintain the same semantics as other caches, references to data structures are deep-copied on set and get. Thus, modifications to the
original data structure will not affect the data structure stored in the cache, and vica versa. See CHI::Driver::RawMemory for a faster
memory cache that sacrifices this behavior.
CONSTRUCTOR OPTIONS
When using this driver, the following options can be passed to CHI->new() in addition to the CHI. One of datastore or global must be
specified, or else a warning (possibly an error eventually) will be thrown.
datastore [HASHREF]
A reference to a hash to be used for storage. Within the hash, each namespace is used as a key to a second-level hash. This hash may
be passed to multiple CHI::Driver::Memory constructors.
global [BOOL]
Use a standard global datastore. Multiple caches created with this flag will see the same data. Before 0.21, this was the default
behavior; now it must be specified explicitly (to avoid accidentally sharing the same datastore in unrelated code).
DISCARD POLICY
For CHI/SIZE AWARENESS caches, this driver implements an 'LRU' policy, which discards the least recently used items first. This is the
default policy.
SEE ALSO
CHI::Driver::RawMemory, CHI
AUTHOR
Jonathan Swartz <swartz@pobox.com>
COPYRIGHT AND LICENSE
This software is copyright (c) 2011 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.
perl v5.14.2 2012-05-30 CHI::Driver::Memory(3pm)