Mercurial > hg > nginx-tests
annotate stream_upstream_max_conns.t @ 1528:f0a9f5fecc8f
Tests: various index module error cases.
author | Sergey Kandaurov <pluknet@nginx.com> |
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date | Tue, 29 Oct 2019 20:37:58 +0300 |
parents | 3c101e516213 |
children | f3ba4c74de31 |
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1 #!/usr/bin/perl |
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2 |
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3 # (C) Nginx, Inc. |
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4 # (C) Sergey Kandaurov |
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5 |
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6 # Tests for stream upstream module with max_conns feature. |
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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 use IO::Select; |
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16 |
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17 BEGIN { use FindBin; chdir($FindBin::Bin); } |
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18 |
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19 use lib 'lib'; |
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20 use Test::Nginx qw/ :DEFAULT http_end /; |
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21 |
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22 ############################################################################### |
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23 |
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24 select STDERR; $| = 1; |
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25 select STDOUT; $| = 1; |
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26 |
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27 my $t = Test::Nginx->new()->has(qw/stream stream_upstream_least_conn/) |
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28 ->has(qw/stream_upstream_hash/)->plan(14); |
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29 |
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30 $t->write_file_expand('nginx.conf', <<'EOF'); |
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31 |
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32 %%TEST_GLOBALS%% |
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33 |
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34 daemon off; |
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35 |
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36 events { |
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37 } |
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38 |
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39 stream { |
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40 upstream u_unlim { |
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41 server 127.0.0.1:8081 max_conns=0; |
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42 server 127.0.0.1:8082; |
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43 } |
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44 upstream u_lim { |
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45 server 127.0.0.1:8081 max_conns=3; |
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46 } |
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47 |
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48 upstream u_backup { |
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49 server 127.0.0.1:8081 max_conns=2; |
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50 server 127.0.0.1:8082 backup; |
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51 } |
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52 upstream u_backup_lim { |
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53 server 127.0.0.1:8081 max_conns=2; |
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54 server 127.0.0.1:8082 backup max_conns=3; |
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55 } |
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56 |
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57 upstream u_two { |
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58 server 127.0.0.1:8081 max_conns=1; |
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59 server 127.0.0.1:8082 max_conns=1; |
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60 } |
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61 upstream u_some { |
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62 server 127.0.0.1:8081 max_conns=1; |
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63 server 127.0.0.1:8082; |
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64 } |
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65 upstream u_many { |
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66 server 127.0.0.1:8081 max_conns=1; |
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67 server 127.0.0.1:8081 max_conns=1; |
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68 server 127.0.0.1:8082; |
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69 } |
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70 |
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71 upstream u_weight { |
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72 server 127.0.0.1:8081 weight=2 max_conns=1; |
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73 server 127.0.0.1:8082; |
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74 } |
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75 |
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76 upstream u_lc { |
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77 least_conn; |
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78 server 127.0.0.1:8081 max_conns=1; |
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79 server 127.0.0.1:8082; |
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80 } |
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81 upstream u_lc_backup { |
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82 least_conn; |
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83 server 127.0.0.1:8081 max_conns=2; |
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84 server 127.0.0.1:8082 backup; |
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85 } |
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86 upstream u_lc_backup_lim { |
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87 least_conn; |
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88 server 127.0.0.1:8081 max_conns=2; |
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89 server 127.0.0.1:8082 backup max_conns=3; |
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90 } |
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91 |
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92 upstream u_hash { |
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93 hash $remote_addr; |
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94 server 127.0.0.1:8081 max_conns=1; |
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95 server 127.0.0.1:8082 max_conns=2; |
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96 } |
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97 upstream u_chash { |
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98 hash $remote_addr consistent; |
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99 server 127.0.0.1:8081 max_conns=1; |
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100 server 127.0.0.1:8082 max_conns=2; |
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101 } |
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102 |
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103 server { |
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104 listen 127.0.0.1:8086; |
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105 proxy_pass u_unlim; |
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106 } |
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107 |
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108 server { |
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109 listen 127.0.0.1:8087; |
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110 proxy_pass u_lim; |
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111 } |
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112 |
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113 server { |
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114 listen 127.0.0.1:8088; |
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115 proxy_pass u_backup; |
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116 } |
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117 |
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118 server { |
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119 listen 127.0.0.1:8089; |
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120 proxy_pass u_backup_lim; |
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121 } |
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122 |
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123 server { |
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124 listen 127.0.0.1:8090; |
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125 proxy_pass u_two; |
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126 } |
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127 |
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128 server { |
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129 listen 127.0.0.1:8091; |
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130 proxy_pass u_some; |
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131 } |
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132 |
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133 server { |
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134 listen 127.0.0.1:8092; |
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135 proxy_pass u_many; |
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136 } |
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137 |
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138 server { |
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139 listen 127.0.0.1:8093; |
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140 proxy_pass u_weight; |
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141 } |
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142 |
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143 server { |
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144 listen 127.0.0.1:8094; |
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145 proxy_pass u_lc; |
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146 } |
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147 |
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148 server { |
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149 listen 127.0.0.1:8095; |
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150 proxy_pass u_lc_backup; |
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151 } |
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152 |
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153 server { |
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154 listen 127.0.0.1:8096; |
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155 proxy_pass u_lc_backup_lim; |
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156 } |
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157 |
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158 server { |
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159 listen 127.0.0.1:8097; |
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160 proxy_pass u_hash; |
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161 } |
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162 |
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163 server { |
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164 listen 127.0.0.1:8098; |
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165 proxy_pass u_chash; |
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166 } |
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167 } |
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168 |
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169 EOF |
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170 |
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171 $t->run_daemon(\&http_daemon, port(8081), port(8082), port(8085)); |
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172 $t->run(); |
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173 |
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174 $t->waitforsocket('127.0.0.1:' . port(8081)); |
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175 $t->waitforsocket('127.0.0.1:' . port(8082)); |
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176 $t->waitforsocket('127.0.0.1:' . port(8085)); |
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177 |
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178 ############################################################################### |
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179 |
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180 my @ports = my ($p1, $p2) = (port(8081), port(8082)); |
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181 |
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182 # two peers without max_conns |
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183 |
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184 is(parallel(8086, '/u_unlim?delay=0', 4), "$p1: 2, $p2: 2", 'unlimited'); |
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185 |
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186 # reopen connection to test connection subtraction |
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187 |
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188 my @s = http_get_multi(8087, '/u_lim', 2, 1.1); |
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189 get(8087, '/close'); |
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190 push @s, http_get_multi(8087, '/u_lim', 1, 1.1); |
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191 get(8085, '/closeall'); |
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192 |
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193 is(http_end_multi(\@s), "$p1: 3", 'conn subtraction'); |
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194 |
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195 # simple test with limited peer |
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196 |
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197 is(parallel(8087, '/u_lim', 4), "$p1: 3", 'single'); |
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198 |
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199 # limited peer with backup peer |
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200 |
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201 is(peers(8088, '/u_backup', 6), "$p1 $p1 $p2 $p2 $p2 $p2", 'backup'); |
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202 |
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203 # peer and backup peer, both limited |
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204 |
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205 is(peers(8089, '/u_backup_lim', 6), "$p1 $p1 $p2 $p2 $p2 ", 'backup limited'); |
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206 |
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207 # all peers limited |
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208 |
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209 is(parallel(8090, '/u_two', 4), "$p1: 1, $p2: 1", 'all peers'); |
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210 |
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211 # subset of peers limited |
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212 |
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213 is(parallel(8091, '/u_some', 4), "$p1: 1, $p2: 3", 'some peers'); |
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214 |
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215 # ensure that peer "weight" does not affect its max_conns limit |
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216 |
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217 is(parallel(8093, '/u_weight', 4), "$p1: 1, $p2: 3", 'weight'); |
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218 |
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219 # peers with equal server value aggregate max_conns limit |
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220 |
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221 is(parallel(8092, '/u_many', 6), "$p1: 2, $p2: 4", 'equal peer'); |
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222 |
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223 # least_conn balancer tests |
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224 |
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225 is(parallel(8094, '/u_lc', 4), "$p1: 1, $p2: 3", 'least_conn'); |
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226 is(peers(8095, '/u_lc_backup', 6), "$p1 $p1 $p2 $p2 $p2 $p2", |
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227 'least_conn backup'); |
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228 is(peers(8096, '/u_lc_backup_lim', 6), "$p1 $p1 $p2 $p2 $p2 ", |
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229 'least_conn backup limited'); |
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230 |
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231 # hash balancer tests |
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232 |
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233 is(parallel(8097, '/u_hash', 4), "$p1: 1, $p2: 2", 'hash'); |
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234 is(parallel(8098, '/u_chash', 4), "$p1: 1, $p2: 2", 'hash consistent'); |
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235 |
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236 ############################################################################### |
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237 |
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238 sub peers { |
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239 my ($port, $uri, $count) = @_; |
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240 |
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241 my @sockets = http_get_multi($port, $uri, $count, 1.1); |
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242 get(8085, '/closeall'); |
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243 |
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244 join ' ', map { defined $_ && /X-Port: (\d+)/ && $1 } |
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245 map { http_end $_ } (@sockets); |
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246 } |
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247 |
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248 sub parallel { |
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249 my ($port, $uri, $count) = @_; |
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250 |
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251 my @sockets = http_get_multi($port, $uri, $count); |
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252 for (1 .. 20) { |
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253 last if IO::Select->new(@sockets)->can_read(3) == $count; |
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254 select undef, undef, undef, 0.01; |
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255 } |
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256 get(8085, '/closeall'); |
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257 return http_end_multi(\@sockets); |
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258 } |
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259 |
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260 sub get { |
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261 my ($port, $uri, %opts) = @_; |
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262 my $s = IO::Socket::INET->new( |
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263 Proto => 'tcp', |
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264 PeerAddr => '127.0.0.1', |
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265 PeerPort => port($port), |
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266 ) |
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267 or die "Can't connect to nginx: $!\n"; |
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268 |
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269 http_get($uri, socket => $s, %opts); |
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270 } |
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271 |
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272 sub http_get_multi { |
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273 my ($port, $uri, $count, $wait) = @_; |
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274 my @sockets; |
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275 |
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276 for (0 .. $count - 1) { |
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277 $sockets[$_] = get($port, $uri, start => 1); |
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278 IO::Select->new($sockets[$_])->can_read($wait) if $wait; |
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279 } |
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280 |
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281 return @sockets; |
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282 } |
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283 |
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284 sub http_end_multi { |
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285 my ($sockets) = @_; |
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286 my %ports; |
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287 |
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288 for my $sock (@$sockets) { |
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289 my $r = http_end($sock); |
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290 if ($r && $r =~ /X-Port: (\d+)/) { |
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291 $ports{$1} = 0 unless defined $ports{$1}; |
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292 $ports{$1}++; |
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293 } |
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294 close $sock; |
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295 } |
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296 |
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297 my @keys = map { my $p = $_; grep { $p == $_ } keys %ports } @ports; |
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298 return join ', ', map { $_ . ": " . $ports{$_} } @keys; |
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299 } |
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300 |
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301 ############################################################################### |
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302 |
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303 sub http_daemon { |
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304 my (@ports) = @_; |
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305 my (@socks, @clients); |
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306 |
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307 for my $port (@ports) { |
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308 my $server = IO::Socket::INET->new( |
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309 Proto => 'tcp', |
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310 LocalHost => "127.0.0.1:$port", |
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311 Listen => 42, |
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312 Reuse => 1 |
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313 ) |
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314 or die "Can't create listening socket: $!\n"; |
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315 push @socks, $server; |
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316 } |
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317 |
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318 my $sel = IO::Select->new(@socks); |
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319 my $skip = 4; |
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320 my $count = 0; |
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321 |
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322 local $SIG{PIPE} = 'IGNORE'; |
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323 |
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324 OUTER: |
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325 while (my @ready = $sel->can_read) { |
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326 foreach my $fh (@ready) { |
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327 if (grep $_ == $fh, @socks) { |
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328 my $new = $fh->accept; |
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329 $new->autoflush(1); |
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330 $sel->add($new); |
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331 $count++; |
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332 |
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333 } else { |
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334 my @busy = grep { $_->sockport() } @ready; |
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335 |
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336 # finish other handles |
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337 if ($fh->sockport() == port(8085) && @busy > 1 |
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338 && grep $_->sockport() != port(8085), |
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339 @busy) |
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340 { |
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341 next; |
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342 } |
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343 |
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344 # late events in other handles |
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345 if ($fh->sockport() == port(8085) && @busy == 1 |
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346 && $count > 1 && $skip-- > 0) |
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347 { |
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348 select undef, undef, undef, 0.1; |
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349 next OUTER; |
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350 } |
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351 |
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352 my $rv = process_socket($fh, \@clients); |
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353 if ($rv == 1) { |
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354 $sel->remove($fh); |
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355 $fh->close; |
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356 } |
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357 if ($rv == 2) { |
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358 for (@clients) { |
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359 $sel->remove($_); |
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360 $_->close; |
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361 } |
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362 $sel->remove($fh); |
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363 $fh->close; |
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364 $skip = 4; |
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365 } |
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366 $count--; |
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367 } |
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368 } |
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369 } |
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370 } |
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371 |
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372 # Returns true to close connection |
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373 |
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374 sub process_socket { |
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375 my ($client, $saved) = @_; |
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376 my $port = $client->sockport(); |
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377 |
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378 my $headers = ''; |
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379 my $uri = ''; |
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380 |
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381 while (<$client>) { |
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382 $headers .= $_; |
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383 last if (/^\x0d?\x0a?$/); |
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384 } |
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385 return 1 if $headers eq ''; |
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386 |
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387 $uri = $1 if $headers =~ /^\S+\s+([^ ]+)\s+HTTP/i; |
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388 return 1 if $uri eq ''; |
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389 |
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390 Test::Nginx::log_core('||', "$port: response, 200"); |
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391 print $client <<EOF; |
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392 HTTP/1.1 200 OK |
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393 X-Port: $port |
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394 |
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395 OK |
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396 EOF |
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397 |
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398 return 2 if $uri =~ /closeall/; |
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399 return 1 if $uri =~ /close/; |
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400 |
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401 push @$saved, $client; |
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402 return 0; |
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403 } |
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404 |
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405 ############################################################################### |