NAME
Data::Session::Driver::File - A persistent session manager
Synopsis
See Data::Session for details.
Description
Data::Session::Driver::File allows Data::Session to manipulate sessions via files.
To use this module do this:
Case-sensitive Options
See "Case-sensitive Options" in Data::Session for important information.
Method: new()
Creates a new object of type Data::Session::Driver::File.
new() takes a hash of key/value pairs, some of which might mandatory. Further, some combinations might be mandatory.
The keys are listed here in alphabetical order.
They are lower-case because they are (also) method names, meaning they can be called to set or get the value at any time.
- o directory => $string
-
Specifies the path to the directory which will contain the session files.
This key is normally passed in as Data::Session -> new(directory => $string).
The default value is File::Spec -> tmpdir.
This key is optional.
- o file_name => $string_containing_%s
-
Specifies the pattern to use for session file names. It must contain 1 '%s', which will be replaced by the session id before the pattern is used as a file name.
This key is normally passed in as Data::Session -> new(file_name => $string_containing_%s).
The default value is 'cgisess_%s'.
This key is optional.
- o no_flock => $boolean
-
Specifies (no_flock => 1) to not use flock() to obtain a lock on a session file before processing it, or (no_flock => 0) to use flock().
This key is normally passed in as Data::Session -> new(no_flock => $boolean).
The default value is 0.
This key is optional.
- o no_follow => $value
-
Influences the mode to use when calling sysopen() on session files.
'Influences' means the value is bit-wise ored with O_RDONLY for reading and with O_WRONLY for writing.
This key is normally passed in as Data::Session -> new(no_follow => $boolean).
The default value is eval{O_NOFOLLOW} || 0.
This key is optional.
- o umask => $octal_value
-
Specifies the mode to use when calling sysopen() on session files.
This key is normally passed in as Data::Session -> new(umask => $octal_value).
The default value is 0660.
This key is optional.
- o verbose => $integer
-
Print to STDERR more or less information.
Typical values are 0, 1 and 2.
This key is normally passed in as Data::Session -> new(verbose => $integer).
This key is optional.
Method: remove($id)
Deletes from storage the session identified by $id.
Returns 1 if it succeeds, and dies if it can't.
Method: retrieve($id)
Retrieves from storage the session identified by $id, or dies if it can't.
Returns the result of reading the session from the file identified by $id.
This result is a frozen session. This value must be thawed by calling the appropriate serialization driver's thaw() method.
Data::Session calls the right thaw() automatically.
Method: store($id => $data)
Writes to storage the session identified by $id, together with its data $data.
Storage is a file identified by $id.
Returns 1 if it succeeds, and dies if it can't.
Method: traverse($sub)
Retrieves all ids via their file names, and for each id calls the supplied subroutine with the id as the only parameter.
Returns 1.
Support
Log a bug on RT: https://rt.cpan.org/Public/Dist/Display.html?Name=Data-Session.
Author
Data::Session was written by Ron Savage <ron@savage.net.au> in 2010.
Home page: http://savage.net.au/index.html.
Copyright
Australian copyright (c) 2010, Ron Savage.
All Programs of mine are 'OSI Certified Open Source Software';
you can redistribute them and/or modify them under the terms of
The Artistic License, a copy of which is available at:
http://www.opensource.org/licenses/index.html