| #!/usr/bin/perl |
| |
| # (C) Sergey Kandaurov |
| # (C) Nginx, Inc. |
| |
| # Stream tests for upstream least_conn balancer module 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 stream_upstream_least_conn udp/) |
| ->plan(2)->write_file_expand('nginx.conf', <<'EOF'); |
| |
| %%TEST_GLOBALS%% |
| |
| daemon off; |
| |
| events { |
| } |
| |
| stream { |
| proxy_responses 1; |
| proxy_timeout 1s; |
| |
| upstream u { |
| least_conn; |
| server 127.0.0.1:%%PORT_8981_UDP%%; |
| server 127.0.0.1:%%PORT_8982_UDP%%; |
| } |
| |
| server { |
| listen 127.0.0.1:%%PORT_8980_UDP%% udp; |
| proxy_pass u; |
| } |
| } |
| |
| EOF |
| |
| $t->run_daemon(\&udp_daemon, port(8981), $t); |
| $t->run_daemon(\&udp_daemon, port(8982), $t); |
| $t->run(); |
| |
| $t->waitforfile($t->testdir . '/' . port(8981)); |
| $t->waitforfile($t->testdir . '/' . port(8982)); |
| |
| ############################################################################### |
| |
| my @ports = my ($port1, $port2) = (port(8981), port(8982)); |
| |
| is(many(10), "$port1: 5, $port2: 5", 'balanced'); |
| |
| my @sockets; |
| for (1 .. 2) { |
| my $s = dgram('127.0.0.1:' . port(8980)); |
| $s->write('w'); |
| push @sockets, $s; |
| } |
| |
| select undef, undef, undef, 0.2; |
| |
| is(many(10), "$port2: 10", 'least_conn'); |
| |
| ############################################################################### |
| |
| sub many { |
| my ($count) = @_; |
| my (%ports); |
| |
| for (1 .. $count) { |
| if (dgram('127.0.0.1:' . port(8980))->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); |
| |
| my $port = $server->sockport(); |
| |
| if ($buffer =~ /w/ && $port == port(8981)) { |
| select undef, undef, undef, 2.5; |
| } |
| |
| $buffer = $port; |
| |
| $server->send($buffer); |
| } |
| } |
| |
| ############################################################################### |