filecache5.18(3pm) [mojave man page]

FileCache(3pm)						 Perl Programmers Reference Guide					    FileCache(3pm)

NAME

       FileCache - keep more files open than the system permits

SYNOPSIS

	   no strict 'refs';

	   use FileCache;
	   # or
	   use FileCache maxopen => 16;

	   cacheout $mode, $path;
	   # or
	   cacheout $path;
	   print $path @data;

	   $fh = cacheout $mode, $path;
	   # or
	   $fh = cacheout $path;
	   print $fh @data;

DESCRIPTION

       The "cacheout" function will make sure that there's a filehandle open for reading or writing available as the pathname you give it. It
       automatically closes and re-opens files if you exceed your system's maximum number of file descriptors, or the suggested maximum maxopen.

       cacheout EXPR
	   The 1-argument form of cacheout will open a file for writing ('>') on it's first use, and appending ('>>') thereafter.

	   Returns EXPR on success for convenience. You may neglect the return value and manipulate EXPR as the filehandle directly if you prefer.

       cacheout MODE, EXPR
	   The 2-argument form of cacheout will use the supplied mode for the initial and subsequent openings. Most valid modes for 3-argument
	   "open" are supported namely; '>', '+>', '<', '<+', '>>',  '|-'  and	'-|'

	   To pass supplemental arguments to a program opened with  '|-'  or  '-|' append them to the command string as you would system EXPR.

	   Returns EXPR on success for convenience. You may neglect the return value and manipulate EXPR as the filehandle directly if you prefer.

CAVEATS

       While it is permissible to "close" a FileCache managed file, do not do so if you are calling "FileCache::cacheout" from a package other
       than which it was imported, or with another module which overrides "close".  If you must, use "FileCache::cacheout_close".

       Although FileCache can be used with piped opens ('-|' or '|-') doing so is strongly discouraged.  If FileCache finds it necessary to close
       and then reopen a pipe, the command at the far end of the pipe will be reexecuted - the results of performing IO on FileCache'd pipes is
       unlikely to be what you expect.	The ability to use FileCache on pipes may be removed in a future release.

       FileCache does not store the current file offset if it finds it necessary to close a file.  When the file is reopened, the offset will be
       as specified by the original "open" file mode.  This could be construed to be a bug.

       The module functionality relies on symbolic references, so things will break under 'use strict' unless 'no strict "refs"' is also
       specified.

BUGS

       sys/param.h lies with its "NOFILE" define on some systems, so you may have to set maxopen yourself.

perl v5.18.2							    2014-01-06							    FileCache(3pm)

Catalyst::Plugin::Session::Store::File(3pm)		User Contributed Perl Documentation	       Catalyst::Plugin::Session::Store::File(3pm)

NAME

       Catalyst::Plugin::Session::Store::File - File storage backend for session data.

SYNOPSIS

	   use Catalyst qw/Session Session::Store::File Session::State::Foo/;

	   MyApp->config->{'Plugin::Session'} = {
	       storage => '/tmp/session'
	   };

	   # ... in an action:
	   $c->session->{foo} = 'bar'; # will be saved

DESCRIPTION

       "Catalyst::Plugin::Session::Store::File" is an easy to use storage plugin for Catalyst that uses an simple file to act as a shared memory
       interprocess cache. It is based on "Cache::FileCache".

   METHODS
       get_session_data
       store_session_data
       delete_session_data
       delete_expired_sessions
	   These are implementations of the required methods for a store. See Catalyst::Plugin::Session::Store.

       setup_session
	   Sets up the session cache file.

CONFIGURATION

       These parameters are placed in the hash under the "Plugin::Session" key in the configuration hash.

       storage
	   Specifies the directory root to be used for the sharing of session data. The default value will use File::Spec to find the default
	   tempdir, and use a file named "MyApp/session/data", where "MyApp" is replaced with the appname.

	   Note that the file will be created with mode 0640, which means that it will only be writeable by processes running with the same uid as
	   the process that creates the file.  If this may be a problem, for example if you may try to debug the program as one user and run it as
	   another, specify a directory like "/tmp/session-$>", which includes the UID of the process in the filename.

       relative
	   Makes the storage path relative to $c-path_to>

       namespace
	   The namespace associated with this cache. Defaults to an empty string if not explicitly set.  If set, the session data will be stored
	   in a directory called "MyApp/session/data/<namespace">.

       cache_depth
	   The number of subdirectories deep to session object item. This should be large enough that no session directory has more than a few
	   hundred objects. Defaults to 3 unless explicitly set.

       directory_umask
	   The directories in the session on the filesystem should be globally writable to allow for multiple users. While this is a potential
	   security concern, the actual cache entries are written with the user's umask, thus reducing the risk of cache poisoning. If you desire
	   it to only be user writable, set the 'directory_umask' option to '077' or similar. Defaults to '000' unless explicitly set.

SEE ALSO

       Catalyst, Catalyst::Plugin::Session, Cache::FileCache.

AUTHOR

       Sascha Kiefer, esskar@cpan.org

COPYRIGHT AND LICENSE

       Copyright (C) 2005 Sascha Kiefer

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2009-10-08			       Catalyst::Plugin::Session::Store::File(3pm)