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# Apache::Session::SharedMem |
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# Copyright 2004 Simon Wistow |
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# This module is free software; you can redistribute it and/or |
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# modify it under the same terms as Perl itself. |
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package Apache::Session::SharedMem; |
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237911
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use strict; |
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use vars qw(@ISA $VERSION); |
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use IPC::Cache; |
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use Apache::Session; |
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use Apache::Session::Lock::Null; |
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use Apache::Session::Store::SharedMem; |
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use Apache::Session::Generate::MD5; |
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use Apache::Session::Serialize::Storable; |
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@ISA = qw(Apache::Session); |
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$VERSION = '0.6'; |
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use Apache::Session; |
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@ISA = qw(Apache::Session); |
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sub populate { |
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0
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my ($self) = @_; |
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$self->{object_store} = new Apache::Session::Store::SharedMem $self; |
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$self->{lock_manager} = new Apache::Session::Lock::Null $self; |
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$self->{generate} = \&Apache::Session::Generate::MD5::generate; |
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$self->{validate} = \&Apache::Session::Generate::MD5::validate; |
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$self->{serialize} = \&Apache::Session::Serialize::Storable::serialize; |
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$self->{unserialize} = \&Apache::Session::Serialize::Storable::unserialize; |
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return $self; |
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} |
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sub DESTROY { |
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my $self = shift; |
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$self->save; |
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$self->{object_store}->close; |
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$self->release_all_locks; |
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} |
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sub new |
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{ |
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0
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my ($class, $session) = shift; |
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0
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my ($self, $cacheargs); |
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$cacheargs->{namespace} = $session->{data}->{_session_id}; |
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0
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$cacheargs->{expires_in} = $session->{args}->{expires_in}; |
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0
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$self->{cache} = new IPC::Cache ( $cacheargs ); |
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0
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return bless $self, $class; |
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} |
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1; |
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=head1 NAME |
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Apache::Session::SharedMem - Session management via shared memory |
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=head1 SYNOPSIS |
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use Apache::Session::SharedMem; |
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tie %s, 'Apache::Session::SharedMem', $sessionid, { expires_in => 86400 } |
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=head1 DESCRIPTION |
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This module is an implementation of Apache::Session. It uses B |
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to store session variables in shared memory. |
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The advantage of this is that it is fairly fast (about the same speed, if |
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not faster than B and is very easy to set up |
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making it perfect for when you want to test sessions but can't be bothered |
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to set up a database or don't want cgi scripts writing temp files. |
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90
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=head2 CAVEATS |
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It probably isn't very scaleable (i.e you probably shouldn't use this in |
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production code which is going to get hit hard. |
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I have no idea if it leaks memory yet. I've only just written it :) |
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Apparently it B (and hence B) don't work under Perl 5.6. |
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=head1 USAGE |
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Just the same as all the other B modules. You can optionally |
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pass the parameter B which will tell the Session to expire in |
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a certain time. |
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106
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=head1 PREREQUISITES |
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108
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B needs B and B, both available from the CPAN. |
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110
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=head1 AUTHOR |
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112
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Simon Wistow |
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=head1 COPYRIGHT |
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This software is copyright(c) 2000, 2001, 2002 Simon Wistow. It is free software |
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and can be used under the same terms as perl, i.e. either the GNU |
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Public Licence or the Artistic License. |
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=head1 SEE ALSO |
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122
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L, L |
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=cut |
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