IO::Poll - man - phpman

NAME
    IO::Poll - Object interface to system poll call

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

        $poll = IO::Poll->new();

        $poll->mask($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

AUTHOR
    Graham Barr. Currently maintained by the Perl Porters. Please report all bugs to
    <perlbug AT perl.org>.

COPYRIGHT
    Copyright (c) 1997-8 Graham Barr <gbarr AT 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.