1CGI::Session::Driver::fUisleer(3C)ontributed Perl DocumeCnGtIa:t:iSoenssion::Driver::file(3)
2
3
4

NAME

6       CGI::Session::Driver::file - Default CGI::Session driver
7

SYNOPSIS

9           $s = new CGI::Session();
10           $s = new CGI::Session("driver:file", $sid);
11           $s = new CGI::Session("driver:file", $sid, {Directory=>'/tmp'});
12

DESCRIPTION

14       When CGI::Session object is created without explicitly setting driver,
15       file will be assumed.  file - driver will store session data in plain
16       files, where each session will be stored in a separate file.
17
18       Naming conventions of session files are defined by
19       $CGI::Session::Driver::file::FileName global variable.  Default value
20       of this variable is cgisess_%s, where %s will be replaced with
21       respective session ID. Should you wish to set your own FileName
22       template, do so before requesting for session object:
23
24           use CGI::Session::Driver::file; # This line is mandatory.
25           # Time passes...
26           $CGI::Session::Driver::file::FileName = "%s.dat";
27           $s = new CGI::Session();
28
29       For backwards compatibility with 3.x, you can also use the variable
30       name $CGI::Session::File::FileName, which will override the one above.
31
32   DRIVER ARGUMENTS
33       If you wish to specify a session directory, use the Directory option,
34       which denotes location of the directory where session ids are to be
35       kept. If Directory is not set, defaults to whatever
36       File::Spec->tmpdir() returns.  So all the three lines in the SYNOPSIS
37       section of this manual produce the same result on a UNIX machine.
38
39       If specified Directory does not exist, all necessary directory
40       hierarchy will be created.
41
42       By default, sessions are created with a umask of 0660. If you wish to
43       change the umask for a session, pass a UMask option with an octal
44       representation of the umask you would like for said session.
45

NOTES

47       If your OS doesn't support flock, you should understand the risks of
48       going without locking the session files. Since sessions tend to be used
49       in environments where race conditions may occur due to concurrent
50       access of files by different processes, locking tends to be seen as a
51       good and very necessary thing. If you still want to use this driver but
52       don't want flock, set $CGI::Session::Driver::file::NoFlock to 1 or pass
53       "NoFlock => 1" and this driver will operate without locks.
54

LICENSING

56       For support and licensing see CGI::Session
57
58
59
60perl v5.10.1                      2008-07-16     CGI::Session::Driver::file(3)
Impressum