MirOS Manual: IO::Poll(3p)


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

NAME

     IO::Poll - Object interface to system poll call

SYNOPSIS

         use IO::Poll qw(POLLRDNORM POLLWRNORM POLLIN POLLHUP);

         $poll = new IO::Poll;

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

         $poll->poll($timeout);

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

DESCRIPTION

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

METHODS

     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"

SEE ALSO

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

perl v5.8.8                2005-02-05                           1

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

AUTHOR

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

COPYRIGHT

     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 v5.8.8                2005-02-05                           2

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