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annotate http_resolver_cleanup.t @ 1185:368ab1d8ed8b

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Tests: unbreak h2.t with aio. Postpone sending client's SETTINGS until after server exhausted stream window, so the expected result does not depend on the time when SETTINGS was applied.
author Sergey Kandaurov <pluknet@nginx.com>
date Tue, 06 Jun 2017 21:41:09 +0300
parents 78cb8e66b6bc
children e4974af3fb12
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/perl
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2
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3 # (C) Sergey Kandaurov
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4 # (C) Nginx, Inc.
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5
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6 # Tests for http resolver, worker process termination.
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7
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8 ###############################################################################
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9
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10 use warnings;
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11 use strict;
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12
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13 use Test::More;
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14
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15 BEGIN { use FindBin; chdir($FindBin::Bin); }
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16
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17 use lib 'lib';
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18 use Test::Nginx;
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19
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20 ###############################################################################
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21
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22 select STDERR; $| = 1;
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23 select STDOUT; $| = 1;
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24
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25 my $t = Test::Nginx->new()->has(qw/http proxy/);
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26
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27 plan(skip_all => 'win32') if $^O eq 'MSWin32';
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28 plan(skip_all => 'use-after-free on shutdown') unless $ENV{TEST_NGINX_UNSAFE}
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29 or $t->has_version('1.11.8');
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30
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31 $t->write_file_expand('nginx.conf', <<'EOF')->plan(1);
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32
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33 %%TEST_GLOBALS%%
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34
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35 daemon off;
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36
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37 events {
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38 }
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39
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40 http {
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41 %%TEST_GLOBALS_HTTP%%
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42
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43 server {
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44 listen 127.0.0.1:8080;
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45 server_name localhost;
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46
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47 location / {
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48 resolver 127.0.0.1:%%PORT_8081_UDP%%;
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49 proxy_pass http://example.net/$args;
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50 }
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51
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52 location /pid {
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53 add_header X-Pid $pid always;
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54 }
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55 }
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56 }
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57
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58 EOF
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59
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60 $t->run_daemon(\&dns_daemon, $t);
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61 $t->run()->waitforfile($t->testdir . '/' . port(8081));
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62
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63 ###############################################################################
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64
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65 # truncated UDP response, no response over TCP
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66
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67 my $s = http_get('/', start => 1);
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68
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69 pass('request');
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70
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71 sleep 1;
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72
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73 # retrasmission timer wasn't removed during resolver cleanup,
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74 # while the event memory was freed, resulting in use-after-free
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75 # when later removing timer in TCP connection
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76
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77 http_get('/pid') =~ qr/X-Pid: (\d+)/;
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78 kill 'TERM', $1;
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79
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80 ###############################################################################
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81
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82 sub dns_daemon {
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83 my ($t) = @_;
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84 my ($data);
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85
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86 my $socket = IO::Socket::INET->new(
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87 LocalAddr => '127.0.0.1',
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88 LocalPort => port(8081),
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89 Proto => 'udp',
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90 )
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91 or die "Can't create UDP socket: $!\n";
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92
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93 # signal we are ready
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94
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95 open my $fh, '>', $t->testdir() . '/' . port(8081);
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96 close $fh;
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97
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98 while (1) {
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99 $socket->recv($data, 65536);
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100 # truncation bit set
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101 $data |= pack("n2", 0, 0x8380);
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102 $socket->send($data);
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103 }
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104 }
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105
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106 ###############################################################################