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use strict;
use warnings;
use IO::Socket::INET;
use Test::More;
use Time::HiRes qw(sleep);
use t::Util;
my $MAX_CONN = 2;
my $WAIT = 0.1;
subtest "single-threaded" => sub {
doit(1);
};
subtest "multi-threaded" => sub {
doit(4);
};
done_testing;
sub doit {
my $num_threads = shift;
my $server = spawn_h2o(<< "EOT");
num-threads: $num_threads
max-connections: $MAX_CONN
hosts:
default:
paths:
/:
file.dir: @{[ DOC_ROOT ]}
EOT
my $port = $server->{port};
my $tls_port = $server->{tls_port};
# establish connections to the maximum (and write partial requests so that the server would accept(2) the connections)
my @conns;
for (1..$MAX_CONN) {
my $conn = IO::Socket::INET->new(
PeerAddr => "127.0.0.1:$port",
Proto => "tcp",
) or die "connection failed:$!";
syswrite($conn, "GET / HTTP/1.0\r\n")
or die "failed to write partial request:$!";
push @conns, $conn;
}
sleep $WAIT;
# create one more connection and send request
my $blocked_conn = IO::Socket::INET->new(
PeerAddr => "127.0.0.1:$port",
Proto => "tcp",
) or die "connection failed:$!";
syswrite($blocked_conn, "GET / HTTP/1.0\r\n\r\n")
or die "failed to write request:$!";
sleep $WAIT;
ok ! data_ready($blocked_conn), "succeeding conn is not handled";
# close the preceeding connections
while (@conns) {
close shift @conns;
}
sleep $WAIT;
ok data_ready($blocked_conn), "succeeding conn should have been handled";
my $resp = do { local $/; <$blocked_conn> };
like $resp, qr{^HTTP/1\.1 200 OK\r\n}s, "response is valid";
}
sub data_ready {
my $conn = shift;
my $rfds = '';
vec($rfds, fileno($conn), 1) = 1;
my $nfound = select $rfds, undef, undef, 0;
return $nfound != 0;
}
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