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#!/usr/bin/perl
# (C) Sergey Kandaurov
# (C) Nginx, Inc.
# Stream tests for upstream module and balancers with datagrams.
###############################################################################
use warnings;
use strict;
use Test::More;
BEGIN { use FindBin; chdir($FindBin::Bin); }
use lib 'lib';
use Test::Nginx;
use Test::Nginx::Stream qw/ dgram /;
###############################################################################
select STDERR; $| = 1;
select STDOUT; $| = 1;
my $t = Test::Nginx->new()->has(qw/stream udp/)->plan(5)
->write_file_expand('nginx.conf', <<'EOF');
%%TEST_GLOBALS%%
daemon off;
events {
}
stream {
%%TEST_GLOBALS_STREAM%%
proxy_responses 1;
proxy_timeout 1s;
upstream u {
server 127.0.0.1:%%PORT_8984_UDP%%;
server 127.0.0.1:%%PORT_8985_UDP%%;
}
upstream u2 {
server 127.0.0.1:%%PORT_8986_UDP%% down;
server 127.0.0.1:%%PORT_8986_UDP%%;
server 127.0.0.1:%%PORT_8984_UDP%%;
server 127.0.0.1:%%PORT_8985_UDP%%;
}
upstream u3 {
server 127.0.0.1:%%PORT_8984_UDP%%;
server 127.0.0.1:%%PORT_8985_UDP%% weight=2;
}
upstream u4 {
server 127.0.0.1:%%PORT_8986_UDP%% down;
server 127.0.0.1:%%PORT_8984_UDP%% backup;
}
server {
listen 127.0.0.1:%%PORT_8980_UDP%% udp;
proxy_pass u;
}
server {
listen 127.0.0.1:%%PORT_8981_UDP%% udp;
proxy_pass u2;
}
server {
listen 127.0.0.1:%%PORT_8982_UDP%% udp;
proxy_pass u3;
}
server {
listen 127.0.0.1:%%PORT_8983_UDP%% udp;
proxy_pass u4;
}
}
EOF
$t->run_daemon(\&udp_daemon, port(8984), $t);
$t->run_daemon(\&udp_daemon, port(8985), $t);
$t->run();
$t->waitforfile($t->testdir . '/' . port(8984));
$t->waitforfile($t->testdir . '/' . port(8985));
###############################################################################
my @ports = my ($port4, $port5) = (port(8984), port(8985));
is(many(10, port(8980)), "$port4: 5, $port5: 5", 'balanced');
is(dgram('127.0.0.1:' . port(8981))->io('.', read_timeout => 0.5), '',
'no next upstream for dgram');
is(many(10, port(8981)), "$port4: 5, $port5: 5", 'failures');
is(many(9, port(8982)), "$port4: 3, $port5: 6", 'weight');
is(many(10, port(8983)), "$port4: 10", 'backup');
###############################################################################
sub many {
my ($count, $port) = @_;
my (%ports);
for (1 .. $count) {
if (dgram("127.0.0.1:$port")->io('.') =~ /(\d+)/) {
$ports{$1} = 0 unless defined $ports{$1};
$ports{$1}++;
}
}
my @keys = map { my $p = $_; grep { $p == $_ } keys %ports } @ports;
return join ', ', map { $_ . ": " . $ports{$_} } @keys;
}
###############################################################################
sub udp_daemon {
my ($port, $t) = @_;
my $server = IO::Socket::INET->new(
Proto => 'udp',
LocalAddr => '127.0.0.1:' . $port,
Reuse => 1,
)
or die "Can't create listening socket: $!\n";
# signal we are ready
open my $fh, '>', $t->testdir() . '/' . $port;
close $fh;
while (1) {
$server->recv(my $buffer, 65536);
$buffer = $server->sockport();
$server->send($buffer);
}
}
###############################################################################