IO::Poll

(source, CPAN)

version 1.55

You are viewing the version of this documentation from Perl 5.41.7. This is a development version of Perl.

NAME
SYNOPSIS
DESCRIPTION
METHODS
SEE ALSO
AUTHOR
COPYRIGHT

#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 at https://github.com/Perl/perl5/issues.

CONTENTS

#NAME

#SYNOPSIS

#DESCRIPTION

#METHODS

#SEE ALSO

#AUTHOR

#COPYRIGHT