CGI::Session::Driver::User(Contributed Perl DocumCGI::Session::Driver::file(3)NAMECGI::Session::Driver::file - Default CGI::Session driver
SYNOPSIS
$s = new CGI::Session();
$s = new CGI::Session("driver:file", $sid);
$s = new CGI::Session("driver:file", $sid, {Directory=>'/tmp'});
DESCRIPTION
When CGI::Session object is created without explicitly setting driver,
file will be assumed. file - driver will store session data in plain
files, where each session will be stored in a separate file.
Naming conventions of session files are defined by
$CGI::Session::Driver::file::FileName global variable. Default value
of this variable is cgisess_%s, where %s will be replaced with
respective session ID. Should you wish to set your own FileName
template, do so before requesting for session object:
use CGI::Session::Driver::file; # This line is mandatory.
# Time passes...
$CGI::Session::Driver::file::FileName = "%s.dat";
$s = new CGI::Session();
For backwards compatibility with 3.x, you can also use the variable
name $CGI::Session::File::FileName, which will override the one above.
DRIVER ARGUMENTS
If you wish to specify a session directory, use the Directory option,
which denotes location of the directory where session ids are to be
kept. If Directory is not set, defaults to whatever
File::Spec->tmpdir() returns. So all the three lines in the SYNOPSIS
section of this manual produce the same result on a UNIX machine.
If specified Directory does not exist, all necessary directory
hierarchy will be created.
By default, sessions are created with a umask of 0660. If you wish to
change the umask for a session, pass a UMask option with an octal
representation of the umask you would like for said session.
NOTES
If your OS doesn't support flock, you should understand the risks of
going without locking the session files. Since sessions tend to be used
in environments where race conditions may occur due to concurrent
access of files by different processes, locking tends to be seen as a
good and very necessary thing. If you still want to use this driver but
don't want flock, set $CGI::Session::Driver::file::NoFlock to 1 or pass
"NoFlock => 1" and this driver will operate without locks.
LICENSING
For support and licensing see CGI::Session
perl v5.14.2 2008-07-16 CGI::Session::Driver::file(3)