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RedHat 9 (Linux i386) - man page for io::poll (redhat section 3pm)

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

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 happend 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

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 v5.8.0				    2002-06-01				    IO::Poll(3pm)


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