Mercurial > hg > nginx-tests

annotate upstream_hash.t @ 1021:ebdf239722b9

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Tests: relaxed proxy_cache_lock.t nolock tests to fix on Solaris. Assumed that the order of responses being arrived in nolock case may be ignored. An important part of such case is that the only last response should be cached.
author Sergey Kandaurov <pluknet@nginx.com>
date Fri, 02 Sep 2016 12:17:35 +0300
parents 882267679006
children 38ed3dda3279
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 upstream hash balancer module.
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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
568
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25 my $t = Test::Nginx->new()->has(qw/http proxy rewrite upstream_hash/)->plan(11);
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26
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27 $t->write_file_expand('nginx.conf', <<'EOF');
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28
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29 %%TEST_GLOBALS%%
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30
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31 daemon off;
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32
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33 events {
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34 }
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35
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36 http {
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37 %%TEST_GLOBALS_HTTP%%
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38
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39 upstream u {
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40 hash $arg_a;
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41 server 127.0.0.1:8081;
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42 server 127.0.0.1:8082;
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43 server 127.0.0.1:8083;
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44 }
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45
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46 upstream u2 {
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47 hash $arg_a;
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48 server 127.0.0.1:8081;
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49 server 127.0.0.1:8083;
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50 }
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51
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52 upstream cw {
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53 hash $arg_a consistent;
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54 server 127.0.0.1:8081;
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55 server 127.0.0.1:8082;
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56 server 127.0.0.1:8083 weight=10;
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57 }
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58
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59 upstream cw2 {
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60 hash $arg_a consistent;
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61 server 127.0.0.1:8081;
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62 server 127.0.0.1:8083 weight=10;
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63 }
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64
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65 upstream c {
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66 hash $arg_a consistent;
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67 server 127.0.0.1:8081;
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68 server 127.0.0.1:8082;
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69 server 127.0.0.1:8083;
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70 }
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71
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72 upstream c2 {
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73 hash $arg_a consistent;
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74 server 127.0.0.1:8081;
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75 server 127.0.0.1:8083;
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76 }
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77
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78 upstream bad {
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79 hash $arg_a;
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80 server 127.0.0.1:8081;
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81 server 127.0.0.1:8084;
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82 }
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83
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84 upstream cbad {
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85 hash $arg_a consistent;
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86 server 127.0.0.1:8081;
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87 server 127.0.0.1:8084;
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88 }
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89
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90 server {
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91 listen 127.0.0.1:8080;
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92 server_name localhost;
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93
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94 location / {
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95 proxy_pass http://u;
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96 }
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97 location /2 {
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98 proxy_pass http://u2;
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99 }
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100 location /cw {
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101 proxy_pass http://cw;
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102 }
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103 location /cw2 {
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104 proxy_pass http://cw2;
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105 }
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106 location /c {
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107 proxy_pass http://c;
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108 }
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109 location /c2 {
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110 proxy_pass http://c2;
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111 }
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112 location /bad {
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113 proxy_pass http://bad;
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114 }
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115 location /cbad {
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116 proxy_pass http://cbad;
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117 }
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118 location /pnu {
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119 proxy_pass http://u/;
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120 proxy_next_upstream http_502;
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121 }
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122 }
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123
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124 server {
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125 listen 127.0.0.1:8081;
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126 listen 127.0.0.1:8082;
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127 listen 127.0.0.1:8083;
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128 server_name localhost;
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129
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130 add_header X-Port $server_port;
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131
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132 location / {
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133 return 204;
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134 }
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135
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136 location /502 {
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137 if ($server_port = %%PORT_8083%%) {
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138 return 502;
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139 }
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140 return 204;
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141 }
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142 }
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143
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144 server {
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145 listen 127.0.0.1:8084;
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146 server_name localhost;
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147 return 444;
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148 }
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149 }
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150
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151 EOF
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152
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153 $t->run();
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154
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155 ###############################################################################
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156
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157 my ($p1, $p2, $p3) = (port(8081), port(8082), port(8083));
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158
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159 # Only requests for absent peer are moved to other peers if hash is consistent.
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160 # Check this by comparing two upstreams with different number of peers.
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161
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162 ok(!cmp_peers([iter('/', 20)], [iter('/2', 20)], $p2), 'inconsistent');
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163 ok(cmp_peers([iter('/c', 20)], [iter('/c2', 20)], $p2), 'consistent');
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164 ok(cmp_peers([iter('/cw', 20)], [iter('/cw2', 20)], $p2), 'consistent weight');
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165
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166 like(many('/?a=1', 10), qr/($p1|$p2|$p3): 10/, 'stable hash');
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167 like(many('/c?a=1', 10), qr/($p1|$p2|$p3): 10/, 'stable hash - consistent');
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168
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169 my @res = iter('/', 10);
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170
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171 is(@res, 10, 'all hashed peers');
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172
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173 @res = grep { $_ != $p3 } @res;
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174 my @res2 = iter('/502', 10);
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175
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176 is_deeply(\@res, \@res2, 'no proxy_next_upstream');
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177 isnt(@res2, 10, 'no proxy_next_upstream peers');
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178
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179 is(iter('/pnu/502', 10), 10, 'proxy_next_upstream peers');
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180
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181 @res = grep { $_ == $p1 } iter('/bad', 20);
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182 is(@res, 20, 'all hashed peers - bad');
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183
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184 @res = grep { $_ == $p1 } iter('/cbad', 20);
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185 is(@res, 20, 'all hashed peers - bad consistent');
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186
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187 ###############################################################################
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188
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189 # Returns true if two arrays follow consistency, i.e., they may only differ
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190 # by @args present in $p, but absent in $p2, for the same indices.
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191
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192 sub cmp_peers {
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193 my ($p, $p2, @args) = @_;
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194
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195 for my $i (0 .. $#$p) {
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196 next if @{$p}[$i] == @{$p2}[$i];
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197 next if (grep $_ == @{$p}[$i], @args);
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198 return 0;
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199 }
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200
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201 return 1;
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202 }
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203
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204 # series of requests, each with unique hash key
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205
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206 sub iter {
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207 my ($uri, $count) = @_;
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208 my @res;
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209
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210 for my $i (1 .. $count) {
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211 if (http_get("$uri/?a=$i") =~ /X-Port: (\d+)/) {
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212 push @res, $1 if defined $1;
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213 }
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214 }
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215
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216 return @res;
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217 }
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218
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219 sub many {
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220 my ($uri, $count) = @_;
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221 my %ports;
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222
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223 for (1 .. $count) {
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224 if (http_get($uri) =~ /X-Port: (\d+)/) {
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225 $ports{$1} = 0 unless defined $ports{$1};
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226 $ports{$1}++;
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227 }
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228 }
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229
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230 return join ', ', map { $_ . ": " . $ports{$_} } sort keys %ports;
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231 }
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232
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233 ###############################################################################