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#!/usr/bin/perl -w
use strict;
use IO::Async::Test;
use Test::More tests => 14;
use IO::Async::Loop;
use IO::Async::OS;
use IO::Async::Sequencer;
my $loop = IO::Async::Loop->new;
my ( $S1, $S2 ) = IO::Async::OS->socketpair or die "Cannot create socket pair - $!";
# Need sockets in nonblocking mode
$S1->blocking( 0 );
$S2->blocking( 0 );
testing_loop( $loop );
my @requests;
my $sequencer = IO::Async::Sequencer->new(
handle => $S1,
marshall_response => sub {
my ( $self, $resp ) = @_;
return "RESP:$resp\n";
},
on_read => sub {
my ( $self, $buffref, $eof ) = @_;
return 0 unless $$buffref =~ s/^(.*)\n//;
$self->incoming_request( $1 ), return 1 if $1 =~ m/^REQ:(.*)$/;
},
on_request => sub {
my ( $self, $token, $request ) = @_;
push @requests, [ $token, $request ];
},
);
ok( defined $sequencer, 'defined $sequencer' );
isa_ok( $sequencer, "IO::Async::Sequencer", '$sequencer isa IO::Async::Sequencer' );
$loop->add( $sequencer );
$S2->syswrite( "REQ:hello\n" );
wait_for { @requests == 1 };
is( $requests[0]->[1], "hello", 'First request' );
$sequencer->respond( $requests[0]->[0], "hello" );
my $clientbuffer = "";
wait_for_stream { $clientbuffer =~ m/\n/ } $S2 => $clientbuffer;
is( $clientbuffer, "RESP:hello\n", 'Client buffer after first response' );
$S2->syswrite( "REQ:zero\nREQ:one\n" );
undef @requests;
wait_for { @requests == 2 };
# Check they're in the right order
is( $requests[0]->[1], "zero", 'Request[0] of ordered pair' );
is( $requests[1]->[1], "one", 'Request[1] of ordered pair' );
# Respond in order for now
$sequencer->respond( $requests[0]->[0], "0" );
$sequencer->respond( $requests[1]->[0], "1" );
$clientbuffer = "";
wait_for_stream { $clientbuffer =~ m/\n.*\n/ } $S2 => $clientbuffer;
is( $clientbuffer, "RESP:0\nRESP:1\n", 'Client buffer after ordered pair' );
# Now we'll see how it copes with out-of-order responses
$S2->syswrite( "REQ:two\nREQ:three\n" );
wait_for { @requests == 4 };
# Check they're in the right order
is( $requests[2]->[1], "two", 'Request[2] of unordered pair' );
is( $requests[3]->[1], "three", 'Request[3] of unordered pair' );
# Respond out of order
$sequencer->respond( $requests[3]->[0], "3" );
$sequencer->respond( $requests[2]->[0], "2" );
$clientbuffer = "";
wait_for_stream { $clientbuffer =~ m/\n.*\n/ } $S2 => $clientbuffer;
# Check these come back right
is( $clientbuffer, "RESP:2\nRESP:3\n", 'Client buffer after unordered pair' );
$loop->remove( $sequencer );
# And now try out the subclassing behaviour
$sequencer = Test::Sequencer->new(
handle => $S1,
);
ok( defined $sequencer, 'defined $sequencer' );
isa_ok( $sequencer, "IO::Async::Sequencer", '$sequencer isa IO::Async::Sequencer' );
$loop->add( $sequencer );
$S2->syswrite( "REQUEST:hello\n" );
undef @requests;
wait_for { @requests == 1 };
is( $requests[0]->[1], "hello", 'Request in subclass' );
$sequencer->respond( $requests[0]->[0], "hello" );
$clientbuffer = "";
wait_for_stream { $clientbuffer =~ m/\n/ } $S2 => $clientbuffer;
is( $clientbuffer, "RESPONSE:hello\n", 'Client buffer after response in subclass' );
exit 0;
package Test::Sequencer;
use strict;
use base qw( IO::Async::Sequencer );
sub on_read
{
my $self = shift;
my ( $buffref, $eof ) = @_;
return 0 unless $$buffref =~ s/^(.*)\n//;
$self->incoming_request( $1 ), return 1 if $1 =~ m/^REQUEST:(.*)$/;
die;
}
sub on_request
{
my $self = shift;
my ( $token, $request ) = @_;
push @requests, [ $token, $request ];
}
sub marshall_response
{
my $self = shift;
my ( $resp ) = @_;
return "RESPONSE:$resp\n";
}
1;
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