Mercurial > hg > nginx-tests
view stream_upstream_least_conn.t @ 682:c68b7bbdf21a
Tests: style.
Moved subroutines section, simplified configuration.
author | Andrey Zelenkov <zelenkov@nginx.com> |
---|---|
date | Tue, 08 Sep 2015 15:11:45 +0300 |
parents | 4296379213c8 |
children | 824754da4afc |
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#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Stream tests for upstream least_conn balancer module. ############################################################################### use warnings; use strict; use Test::More; use IO::Select; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/stream stream_upstream_least_conn/)->plan(2) ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } stream { upstream u { least_conn; server 127.0.0.1:8081; server 127.0.0.1:8082; } server { listen 127.0.0.1:8080; proxy_pass u; } } EOF $t->run_daemon(\&stream_daemon, 8081); $t->run_daemon(\&stream_daemon, 8082); $t->run(); $t->waitforsocket('127.0.0.1:8081'); $t->waitforsocket('127.0.0.1:8082'); ############################################################################### is(many('.', 10), '8081: 5, 8082: 5', 'balanced'); my @sockets; for (1 .. 2) { my $s = stream_connect(); stream_write($s, 'w'); push @sockets, $s; } select undef, undef, undef, 0.2; is(many('.', 10), '8082: 10', 'least_conn'); ############################################################################### sub many { my ($data, $count, %opts) = @_; my (%ports, $peer); $peer = $opts{peer}; for (1 .. $count) { if (stream_get($data, $peer) =~ /(\d+)/) { $ports{$1} = 0 unless defined $ports{$1}; $ports{$1}++; } } return join ', ', map { $_ . ": " . $ports{$_} } sort keys %ports; } sub parallel { my ($data, $count, %opts) = @_; my (@sockets, %ports, $peer); $peer = $opts{peer} || undef; for (1 .. $count) { my $s = stream_connect($peer); push @sockets, $s; stream_write($s, $data); select undef, undef, undef, 0.2; } for (1 .. $count) { my $s = pop @sockets; if (stream_read($s) =~ /(\d+)/) { $ports{$1} = 0 unless defined $ports{$1}; $ports{$1}++; } close $s; } return join ', ', map { $_ . ": " . $ports{$_} } sort keys %ports; } sub stream_get { my ($data, $peer) = @_; my $s = stream_connect($peer); stream_write($s, $data); $data = ''; while (my $buf = stream_read($s)) { $data .= $buf; } return $data; } sub stream_connect { my $peer = shift; my $s = IO::Socket::INET->new( Proto => 'tcp', PeerAddr => $peer || '127.0.0.1:8080' ) or die "Can't connect to nginx: $!\n"; return $s; } sub stream_write { my ($s, $message) = @_; local $SIG{PIPE} = 'IGNORE'; $s->blocking(0); while (IO::Select->new($s)->can_write(1.5)) { my $n = $s->syswrite($message); last unless $n; $message = substr($message, $n); last unless length $message; } if (length $message) { $s->close(); } } sub stream_read { my ($s) = @_; my ($buf); $s->blocking(0); if (IO::Select->new($s)->can_read(3)) { $s->sysread($buf, 1024); }; log_in($buf); return $buf; } ############################################################################### sub stream_daemon { my ($port) = @_; my $server = IO::Socket::INET->new( Proto => 'tcp', LocalAddr => '127.0.0.1', LocalPort => $port, Listen => 5, Reuse => 1 ) or die "Can't create listening socket: $!\n"; my $sel = IO::Select->new($server); local $SIG{PIPE} = 'IGNORE'; while (my @ready = $sel->can_read) { foreach my $fh (@ready) { if ($server == $fh) { my $new = $fh->accept; $new->autoflush(1); $sel->add($new); } elsif (stream_handle_client($fh)) { $sel->remove($fh); $fh->close; } } } } sub stream_handle_client { my ($client) = @_; log2c("(new connection $client)"); $client->sysread(my $buffer, 65536) or return 1; log2i("$client $buffer"); my $port = $client->sockport(); if ($buffer =~ /w/ && $port == 8081) { Test::Nginx::log_core('||', "$port: sleep(2.5)"); select undef, undef, undef, 2.5; } $buffer = $port; log2o("$client $buffer"); $client->syswrite($buffer); return 1; } sub log2i { Test::Nginx::log_core('|| <<', @_); } sub log2o { Test::Nginx::log_core('|| >>', @_); } sub log2c { Test::Nginx::log_core('||', @_); } ###############################################################################