1Cache::SizeAwareCache(3U)ser Contributed Perl DocumentatiCoanche::SizeAwareCache(3)
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NAME

6       Cache::SizeAwareCache -- extends the Cache interface.
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DESCRIPTION

9       The SizeAwareCache interface is implemented by classes that support all
10       of the Cache::Cache interface in addition to the limit_size and
11       max_size features of a size aware cache.
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13       The default cache size limiting algorithm works by removing cache
14       objects in the following order until the desired limit is reached:
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16         1) objects that have expired
17         2) objects that are least recently accessed
18         3) objects that expire next
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SYNOPSIS

21         use Cache::SizeAwareCache;
22         use vars qw( @ISA );
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24         @ISA = qw( Cache::SizeAwareCache );
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CONSTANTS

27       Please see Cache::Cache for standard constants
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29       $NO_MAX_SIZE
30           The cache has no size restrictions
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METHODS

33       Please see Cache::Cache for the standard methods
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35       limit_size( $new_size )
36           Attempt to resize the cache such that the total disk usage is under
37           the $new_size parameter.  $new_size represents t size (in bytes)
38           that the cache should be limited to.  Note that this is only a one
39           time adjustment.  To maintain the cache size, consider using the
40           max_size option, although it is considered very expensive, and can
41           often be better achieved by periodically calling limit_size.
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OPTIONS

44       Please see Cache::Cache for the standard options
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46       max_size
47           Sets the max_size property (size in bytes), which is described in
48           detail below.  Defaults to $NO_MAX_SIZE.
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PROPERTIES

51       Please see Cache::Cache for standard properties
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53       (get|set)_max_size
54           If this property is set, then the cache will try not to exceed the
55           max size value (in bytes) specified.  NOTE: This causes the size of
56           the cache to be checked on every set, and can be considered *very*
57           expensive in some implementations.  A good alternative approach is
58           leave max_size as $NO_MAX_SIZE and to periodically limit the size
59           of the cache by calling the limit_size( $size ) method.
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SEE ALSO

62       Cache::Cache
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AUTHOR

65       Original author: DeWitt Clinton <dewitt@unto.net>
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67       Last author:     $Author: dclinton $
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69       Copyright (C) 2001-2003 DeWitt Clinton
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73perl v5.34.0                      2021-07-22          Cache::SizeAwareCache(3)
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