1Storable(3)           User Contributed Perl Documentation          Storable(3)
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NAME

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

9        use Coro::Storable;
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DESCRIPTION

12       This module implements a few functions from the Storable module in a
13       way so that it cede's more often. Some applications (such as the
14       Deliantra game server) sometimes need to load large Storable objects
15       without blocking the server for a long time.
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17       This is being implemented by using a perlio layer that feeds only small
18       amounts of data (4096 bytes per call) into Storable, and
19       "Coro::cede"'ing regularly (at most 100 times per second by default,
20       though).
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22       As Storable is not reentrant, this module also wraps most functions of
23       the Storable module so that only one freeze or thaw is done at any one
24       moment (and recursive invocations are not currently supported).
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FUNCTIONS

27       $ref = thaw $pst
28           Retrieve an object from the given $pst, which must have been
29           created with "Coro::Storable::freeze" or
30           "Storable::store_fd"/"Storable::store" (sorry, but Storable uses
31           incompatible formats for disk/mem objects).
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33           This function will cede regularly.
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35       $pst = freeze $ref
36           Freeze the given scalar into a Storable object. It uses the same
37           format as "Storable::store_fd".
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39           This functino will cede regularly.
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41       $pst = nfreeze $ref
42           Same as "freeze" but is compatible to "Storable::nstore_fd" (note
43           the "n").
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45       $pst = blocking_freeze $ref
46           Same as "freeze" but is guaranteed to block. This is useful e.g. in
47           "Coro::Util::fork_eval" when you want to serialise a data structure
48           for use with the "thaw" function for this module. You cannot use
49           "Storable::freeze" for this as Storable uses incompatible formats
50           for memory and file images, and this module uses file images.
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52       $pst = blocking_nfreeze $ref
53           Same as "blocking_freeze" but uses "nfreeze" internally.
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55       $guard = guard
56           Acquire the Storable lock, for when you want to call Storable
57           yourself.
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59           Note that this module already wraps all Storable functions, so
60           there is rarely the need to do this yourself.
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AUTHOR/SUPPORT/CONTACT

63          Marc A. Lehmann <schmorp@schmorp.de>
64          http://software.schmorp.de/pkg/Coro.html
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68perl v5.34.0                      2021-07-22                       Storable(3)
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