#!/usr/bin/perl
use strict;
use warnings;
use Test::More;
use IO::Poll;
use IO::Async::OS;
use IO::Async::Loop::Poll;
my $poll = IO::Poll->new;
my $loop = IO::Async::Loop::Poll->new( poll => $poll );
my ( $S1, $S2 ) = IO::Async::OS->socketpair or die "Cannot create socket pair - $!";
# Need sockets in nonblocking mode
$S1->blocking( 0 );
$S2->blocking( 0 );
# Empty
is_deeply( [ $poll->handles ], [], '$poll->handles empty initially' );
# watch_io
my $readready = 0;
$loop->watch_io(
handle => $S1,
on_read_ready => sub { $readready = 1 },
);
is_deeply( [ $poll->handles ], [ $S1 ], '$poll->handles after watch_io read_ready' );
$S2->syswrite( "data\n" );
# We should still wait a little while even thought we expect to be ready
# immediately, because talking to ourself with 0 poll timeout is a race
# condition - we can still race with the kernel.
$poll->poll( 0.1 );
is( $readready, 0, '$readready before post_poll' );
$loop->post_poll;
is( $readready, 1, '$readready after post_poll' );
# Ready $S1 to clear the data
$S1->getline; # ignore return
$loop->unwatch_io(
handle => $S1,
on_read_ready => 1,
);
is_deeply( [ $poll->handles ], [], '$poll->handles empty after unwatch_io read_ready' );
my $writeready = 0;
$loop->watch_io(
handle => $S1,
on_write_ready => sub { $writeready = 1 },
);
is_deeply( [ $poll->handles ], [ $S1 ], '$poll->handles after watch_io write_ready' );
$poll->poll( 0.1 );
is( $writeready, 0, '$writeready before post_poll' );
$loop->post_poll;
is( $writeready, 1, '$writeready after post_poll' );
$loop->unwatch_io(
handle => $S1,
on_write_ready => 1,
);
is_deeply( [ $poll->handles ], [], '$poll->handles empty after unwatch_io write_ready' );
# Removal is clean (tests for workaround to bug in IO::Poll version 0.05)
my ( $P1, $P2 ) = IO::Async::OS->pipepair or die "Cannot pipepair - $!";
# Just to make the loop non-empty
$loop->watch_io( handle => $P2, on_read_ready => sub {} );
$loop->watch_io( handle => \*STDOUT, on_write_ready => sub {} );
is( scalar $poll->handles, 2, '$poll->handles before removal in clean removal test' );
$loop->unwatch_io( handle => \*STDOUT, on_write_ready => 1 );
is( scalar $poll->handles, 1, '$poll->handles after removal in clean removal test' );
done_testing;