anyevent::impl::irssi(3pm) [debian man page]

AnyEvent::Impl::Irssi(3pm)				User Contributed Perl Documentation				AnyEvent::Impl::Irssi(3pm)

NAME

       AnyEvent::Impl::Irssi - AnyEvent adaptor for Irssi

SYNOPSIS

	  use AnyEvent;

	  # this module gets loaded automatically when running under irssi

DESCRIPTION

       This module provides transparent support for AnyEvent. You don't have to do anything to make Irssi scripts work with AnyEvent.

       Limitations of this backend and implementation details:

       o   This backend does not support blocking waits.

	   That means you must set a callback on any condvars, or otherwise make sure to never call "recv" on a condvar that hasn't been signalled
	   yet.

       o   Child exits will be handled by AnyEvent.

	   AnyEvent will take over child handling, as Irssi only polls for children once/second and cannot handle unspecific child watchers.

	   This should have no negative effect, as AnyEvent will emit a pidwait signal just like irssi itself would.

       o   Artificial timer delays.

	   Irssi artificially enforces timers to have at least a 10ms delay (by croaking, even).

	   This means that some applications will be limited to a rate of 100Hz (for example, Coro::AnyEvent thread scheduling).

       o   Irssi leaks memory like hell.

	   Yeah.

       Apart from that, documentation is notoriously wrong (e.g. file handles are not supported by "input_add", contrary to documentation),
       hooking into irssi has to be done in... weird... ways, but otherwise, Irssi is surprisingly full-featured (for basically being a hack).

SEE ALSO

       AnyEvent, Irssi.

AUTHOR

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

perl v5.14.2							    2012-04-08						AnyEvent::Impl::Irssi(3pm)

AnyEvent::Impl::EventLib(3pm)				User Contributed Perl Documentation			     AnyEvent::Impl::EventLib(3pm)

NAME

       AnyEvent::Impl::EventLib - AnyEvent adaptor for Event::Lib

SYNOPSIS

	  use AnyEvent;
	  use Event::Lib;

	  # this module gets loaded automatically as required

DESCRIPTION

       This module provides transparent support for AnyEvent. You don't have to do anything to make Event work with AnyEvent except by loading
       Event::Lib before creating the first AnyEvent watcher.

       Note: the AnyEvent author has not found recent releases of Event::Lib to be even remotely working (not even the examples from the manpage
       or the testsuite work), so this event backend should be avoided (or somebody should step up and maintain it, hint, hint).

       The Event::Lib module suffers from the same limitations and bugs as libevent, most notably it kills already-installed watchers on a file
       descriptor and it is unable to support fork. These are not fatal issues, and are worked-around by this module, but the Event::Lib perl
       module itself has many additional bugs such as taking references to file handles and callbacks instead of making a copy or freeing still-
       allocated scalars, causing memory corruption and random crashes. Only Tk rivals it in its brokenness.

       This adaptor module employs the same workaround around the watcher problems as Tk and should therefore be avoided. (This was done for
       simplicity, one could in theory work around the problems with lower overhead by managing our own watchers).

       Event::Lib also leaks file handles and memory and tends to just exit on problems.

       It also doesn't work around the Windows bug of not signalling TCP connection failures.

       It also doesn't work with many special devices on Linux (/dev/random works, /dev/urandom fails, /dev/tty works, /dev/null fails and so on).

       Event::Lib does not support idle watchers. They could be emulated using low-priority timers but as the priority range (and availability) is
       not queryable nor guaranteed, and the default priority is likely the lowest one, this module cannot use them.

       Avoid Event::Lib if you can.

SEE ALSO

       AnyEvent, Event::Lib.

AUTHOR

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

perl v5.14.2							    2012-04-08					     AnyEvent::Impl::EventLib(3pm)