coro::storable(3pm) [debian man page]

Storable(3pm)						User Contributed Perl Documentation					     Storable(3pm)

NAME

       Coro::Storable - offer a more fine-grained Storable interface

SYNOPSIS

	use Coro::Storable;

DESCRIPTION

       This module implements a few functions from the Storable module in a way so that it cede's more often. Some applications (such as the
       Deliantra game server) sometimes need to load large Storable objects without blocking the server for a long time.

       This is being implemented by using a perlio layer that feeds only small amounts of data (4096 bytes per call) into Storable, and
       "Coro::cede"'ing regularly (at most 100 times per second by default, though).

       As Storable is not reentrant, this module also wraps most functions of the Storable module so that only one freeze or thaw is done at any
       one moment (and recursive invocations are not currently supported).

FUNCTIONS

       $ref = thaw $pst
	   Retrieve an object from the given $pst, which must have been created with "Coro::Storable::freeze" or
	   "Storable::store_fd"/"Storable::store" (sorry, but Storable uses incompatible formats for disk/mem objects).

	   This function will cede regularly.

       $pst = freeze $ref
	   Freeze the given scalar into a Storable object. It uses the same format as "Storable::store_fd".

	   This functino will cede regularly.

       $pst = nfreeze $ref
	   Same as "freeze" but is compatible to "Storable::nstore_fd" (note the "n").

       $pst = blocking_freeze $ref
	   Same as "freeze" but is guaranteed to block. This is useful e.g. in "Coro::Util::fork_eval" when you want to serialise a data structure
	   for use with the "thaw" function for this module. You cannot use "Storable::freeze" for this as Storable uses incompatible formats for
	   memory and file images, and this module uses file images.

       $pst = blocking_nfreeze $ref
	   Same as "blocking_freeze" but uses "nfreeze" internally.

       $guard = guard
	   Acquire the Storable lock, for when you want to call Storable yourself.

	   Note that this module already wraps all Storable functions, so there is rarely the need to do this yourself.

AUTHOR

	Marc Lehmann <schmorp@schmorp.de>
	http://home.schmorp.de/

perl v5.14.2							    2012-04-13							     Storable(3pm)

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Data(3) 						User Contributed Perl Documentation						   Data(3)

NAME

       Gimp::Data - Set and get state data.

SYNOPSIS

	 use Gimp::Data;

	 $Gimp::Data{'value1'} = "Hello";
	 print $Gimp::Data{'value1'},", World!!
";

DESCRIPTION

       With this module, you can access plugin-specific (or global) data in Gimp, i.e. you can store and retrieve values that are stored in the
       main Gimp application.

       An example would be to save parameter values in Gimp, so that on subsequent invocations of your plug-in, the user does not have to set all
       parameter values again (Gimp::Fu does this already).

%Gimp::Data
       You can store and retrieve anything you like in this hash. It's contents will automatically be stored in Gimp, and can be accessed in later
       invocations of your plug-in. Be aware that other plug-ins store data in the same "hash", so better prefix your key with something unique,
       like your plug-in's name. As an example, the Gimp::Fu module uses "function_name/_fu_data" to store its data.

       This module might use a persistant implementation, i.e. your data might survive a restart of the Gimp application, but you cannot count on
       this.

       "Gimp::Data" will try to freeze your data when you pass in a reference. On retrieval, the data is thawed again. See Storable for more info.
       This might be implemented through either Storable or Data::Dumper, or not implemented at all (i.e. silently fail) ;)

PERSISTANCE

       "Gimp::Data" contains the following functions to ease applications where persistence for perl data structures is required:

       Gimp::Data::freeze(reference)
	   Freeze (serialize) the reference.

       Gimp::Data::thaw(data)
	   Thaw (unserialize) the dsata and return the original reference.

LIMITATIONS

       You cannot store references, and you cannot (yet) iterate through the keys (with "keys", "values" or "each").

AUTHOR

       Marc Lehmann <pcg@goof.com>

SEE ALSO

       perl(1), Gimp.

perl v5.8.0							    2001-12-06								   Data(3)

Linux and UNIX Man Pages

coro::storable(3pm) [debian man page]

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