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IO::Poll(3pm)          Perl Programmers Reference Guide          IO::Poll(3pm)

       IO::Poll - Object interface to system poll call


           $poll = new IO::Poll;

           $poll->mask($input_handle => POLLIN);
           $poll->mask($output_handle => POLLOUT);


           $ev = $poll->events($input);

       "IO::Poll" is a simple interface to the system level poll routine.

       mask ( IO [, EVENT_MASK ] )
           If EVENT_MASK is given, then, if EVENT_MASK is non-zero, IO is
           added to the list of file descriptors and the next call to poll
           will check for any event specified in EVENT_MASK. If EVENT_MASK is
           zero then IO will be removed from the list of file descriptors.

           If EVENT_MASK is not given then the return value will be the
           current event mask value for IO.

       poll ( [ TIMEOUT ] )
           Call the system level poll routine. If TIMEOUT is not specified
           then the call will block. Returns the number of handles which had
           events happen, or -1 on error.

       events ( IO )
           Returns the event mask which represents the events that happened on
           IO during the last call to "poll".

       remove ( IO )
           Remove IO from the list of file descriptors for the next poll.

       handles( [ EVENT_MASK ] )
           Returns a list of handles. If EVENT_MASK is not given then a list
           of all handles known will be returned. If EVENT_MASK is given then
           a list of handles will be returned which had one of the events
           specified by EVENT_MASK happen during the last call ti "poll"

       poll(2), IO::Handle, IO::Select

       Graham Barr. Currently maintained by the Perl Porters.  Please report
       all bugs to <perl5-porters@perl.org>.

       Copyright (c) 1997-8 Graham Barr <gbarr@pobox.com>. All rights
       reserved.  This program is free software; you can redistribute it
       and/or modify it under the same terms as Perl itself.

perl v5.12.1                      2010-04-26                     IO::Poll(3pm)

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