Storable(3) User Contributed Perl Documentation Storable(3)NAMECoro::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 2011-11-11 Storable(3)