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Mmap.pm  view on Meta::CPAN

  $cache=Cache::Mmap->new($filename,\%options);

  $val1=$cache->read($key1);
  $cache->write($key2,$val2);
  $cache->delete($key3);

=head1 DESCRIPTION

This module implements a shared data cache, using memory mapped files.
If routines are provided which interact with the underlying data, access to
the cache is completely transparent, and the module handles all the details of
refreshing cache contents, and updating underlying data, if necessary.

Cache entries are assigned to "buckets" within the cache file, depending on
the key. Within each bucket, entries are stored approximately in order of last
access, so that frequently accessed entries will move to the head of the
bucket, thus decreasing access time. Concurrent accesses to the same bucket are
prevented by file locking of the relevant section of the cache file.

=cut

README  view on Meta::CPAN

This module provides a shared cache, using a memory mapped file. Very useful
for mod_perl applications. If routines are provided which interact with the
underlying data, access to the cache is completely transparent, and the module
handles all the details of refreshing cache contents, and updating underlying
data, if necessary.

Changes between versions 0.10 and 0.11
  Add 0.10's changes to this list

Changes between versions 0.09 and 0.10
  Check perl's version number in a way that works on perl 5.10

Changes between versions 0.081 and 0.09