1AnyEvent::Impl::Glib(3)User Contributed Perl DocumentatioAnnyEvent::Impl::Glib(3)
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NAME

6       AnyEvent::Impl::Glib - AnyEvent adaptor for Glib
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SYNOPSIS

9          use AnyEvent;
10          use Glib;
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12          # this module gets loaded automatically as required
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DESCRIPTION

15       This module provides transparent support for AnyEvent. You don't have
16       to do anything to make Glib work with AnyEvent except by loading Glib
17       before creating the first AnyEvent watcher.
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19       Glib is probably the most inefficient event loop that has ever seen the
20       light of the world: Glib not only scans all its watchers (really, ALL
21       of them, whether I/O-related, timer-related or what not) during each
22       loop iteration, it also does so multiple times and rebuilds the poll
23       list for the kernel each time again, dynamically even. Newer versions
24       of libglib fortunately do not call malloc/free on every single watcher
25       invocation, though.
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27       Glib also enforces certain undocumented behaviours, for example, you
28       cannot always remove active child watchers, and the conditions on when
29       it is valid to do so are not documented. Of course, if you get it
30       wrong, you get "GLib-CRITICAL" messages. This makes it extremely hard
31       to write "correct" glib programs, as you have to study the source code
32       to get it right, and hope future versions don't change any internals.
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34       AnyEvent implements the necessary workarounds, at a small performance
35       cost.
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37       On the positive side, and most importantly, when it works, Glib
38       generally works correctly, no quarrels there.
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40       If you create many watchers (as in: more than two), you might consider
41       one of the Glib::EV, EV::Glib or Glib::Event modules that map Glib to
42       other, more efficient, event loops.
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44       This module uses the default Glib main context for all its watchers.
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SEE ALSO

47       AnyEvent, Glib.
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AUTHOR

50        Marc Lehmann <schmorp@schmorp.de>
51        http://anyevent.schmorp.de
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55perl v5.28.0                      2014-08-28           AnyEvent::Impl::Glib(3)
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