Mercurial > hg > nginx-tests
annotate stream_upstream_max_conns.t @ 1982:fb25cbe9d4ec
Tests: explicit Valgrind support.
Valgrind logging is done to a separate file, as it is not able to
follow stderr redirection within nginx or append to a file without
corrupting it. Further, Valgrind logging seems to interfere with
error suppression in tests, and catches various startup errors and
warnings, so the log is additionally filtered.
Since startup under Valgrind can be really slow, timeout in waitforfile()
was changed to 10 seconds.
Prodded by Robert Mueller.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Fri, 31 May 2024 06:23:00 +0300 |
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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 %%TEST_GLOBALS_STREAM%% |
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41 |
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42 upstream u_unlim { |
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43 server 127.0.0.1:8081 max_conns=0; |
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44 server 127.0.0.1:8082; |
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45 } |
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46 upstream u_lim { |
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47 server 127.0.0.1:8081 max_conns=3; |
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48 } |
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49 |
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50 upstream u_backup { |
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51 server 127.0.0.1:8081 max_conns=2; |
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52 server 127.0.0.1:8082 backup; |
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53 } |
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54 upstream u_backup_lim { |
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55 server 127.0.0.1:8081 max_conns=2; |
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56 server 127.0.0.1:8082 backup max_conns=3; |
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57 } |
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58 |
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59 upstream u_two { |
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60 server 127.0.0.1:8081 max_conns=1; |
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61 server 127.0.0.1:8082 max_conns=1; |
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62 } |
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63 upstream u_some { |
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64 server 127.0.0.1:8081 max_conns=1; |
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65 server 127.0.0.1:8082; |
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66 } |
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67 upstream u_many { |
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68 server 127.0.0.1:8081 max_conns=1; |
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69 server 127.0.0.1:8081 max_conns=1; |
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70 server 127.0.0.1:8082; |
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71 } |
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72 |
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73 upstream u_weight { |
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74 server 127.0.0.1:8081 weight=2 max_conns=1; |
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75 server 127.0.0.1:8082; |
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76 } |
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77 |
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78 upstream u_lc { |
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79 least_conn; |
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80 server 127.0.0.1:8081 max_conns=1; |
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81 server 127.0.0.1:8082; |
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82 } |
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83 upstream u_lc_backup { |
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84 least_conn; |
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85 server 127.0.0.1:8081 max_conns=2; |
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86 server 127.0.0.1:8082 backup; |
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87 } |
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88 upstream u_lc_backup_lim { |
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89 least_conn; |
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90 server 127.0.0.1:8081 max_conns=2; |
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91 server 127.0.0.1:8082 backup max_conns=3; |
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92 } |
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93 |
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94 upstream u_hash { |
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95 hash $remote_addr; |
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96 server 127.0.0.1:8081 max_conns=1; |
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97 server 127.0.0.1:8082 max_conns=2; |
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98 } |
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99 upstream u_chash { |
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100 hash $remote_addr consistent; |
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101 server 127.0.0.1:8081 max_conns=1; |
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102 server 127.0.0.1:8082 max_conns=2; |
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103 } |
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104 |
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105 server { |
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106 listen 127.0.0.1:8086; |
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107 proxy_pass u_unlim; |
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108 } |
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109 |
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110 server { |
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111 listen 127.0.0.1:8087; |
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112 proxy_pass u_lim; |
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113 } |
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114 |
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115 server { |
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116 listen 127.0.0.1:8088; |
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117 proxy_pass u_backup; |
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118 } |
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119 |
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120 server { |
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121 listen 127.0.0.1:8089; |
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122 proxy_pass u_backup_lim; |
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123 } |
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124 |
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125 server { |
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126 listen 127.0.0.1:8090; |
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127 proxy_pass u_two; |
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128 } |
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129 |
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130 server { |
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131 listen 127.0.0.1:8091; |
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132 proxy_pass u_some; |
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133 } |
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134 |
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135 server { |
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136 listen 127.0.0.1:8092; |
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137 proxy_pass u_many; |
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138 } |
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139 |
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140 server { |
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141 listen 127.0.0.1:8093; |
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142 proxy_pass u_weight; |
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143 } |
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144 |
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145 server { |
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146 listen 127.0.0.1:8094; |
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147 proxy_pass u_lc; |
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148 } |
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149 |
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150 server { |
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151 listen 127.0.0.1:8095; |
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152 proxy_pass u_lc_backup; |
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153 } |
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154 |
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155 server { |
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156 listen 127.0.0.1:8096; |
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157 proxy_pass u_lc_backup_lim; |
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158 } |
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159 |
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160 server { |
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161 listen 127.0.0.1:8097; |
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162 proxy_pass u_hash; |
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163 } |
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164 |
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165 server { |
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166 listen 127.0.0.1:8098; |
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167 proxy_pass u_chash; |
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168 } |
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169 } |
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170 |
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171 EOF |
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172 |
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173 $t->run_daemon(\&http_daemon, port(8081), port(8082), port(8085)); |
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174 $t->run(); |
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175 |
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176 $t->waitforsocket('127.0.0.1:' . port(8081)); |
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177 $t->waitforsocket('127.0.0.1:' . port(8082)); |
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178 $t->waitforsocket('127.0.0.1:' . port(8085)); |
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179 |
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180 ############################################################################### |
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181 |
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182 my @ports = my ($p1, $p2) = (port(8081), port(8082)); |
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183 |
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184 # two peers without max_conns |
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185 |
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186 is(parallel(8086, '/u_unlim?delay=0', 4), "$p1: 2, $p2: 2", 'unlimited'); |
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187 |
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188 # reopen connection to test connection subtraction |
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189 |
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190 my @s = http_get_multi(8087, '/u_lim', 2, 1.1); |
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191 get(8087, '/close'); |
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192 push @s, http_get_multi(8087, '/u_lim', 1, 1.1); |
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193 get(8085, '/closeall'); |
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194 |
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195 is(http_end_multi(\@s), "$p1: 3", 'conn subtraction'); |
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196 |
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197 # simple test with limited peer |
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198 |
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199 is(parallel(8087, '/u_lim', 4), "$p1: 3", 'single'); |
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200 |
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201 # limited peer with backup peer |
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202 |
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203 is(peers(8088, '/u_backup', 6), "$p1 $p1 $p2 $p2 $p2 $p2", 'backup'); |
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204 |
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205 # peer and backup peer, both limited |
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206 |
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207 is(peers(8089, '/u_backup_lim', 6), "$p1 $p1 $p2 $p2 $p2 ", 'backup limited'); |
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208 |
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209 # all peers limited |
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210 |
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211 is(parallel(8090, '/u_two', 4), "$p1: 1, $p2: 1", 'all peers'); |
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212 |
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213 # subset of peers limited |
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214 |
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215 is(parallel(8091, '/u_some', 4), "$p1: 1, $p2: 3", 'some peers'); |
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216 |
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217 # ensure that peer "weight" does not affect its max_conns limit |
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218 |
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219 is(parallel(8093, '/u_weight', 4), "$p1: 1, $p2: 3", 'weight'); |
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220 |
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221 # peers with equal server value aggregate max_conns limit |
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222 |
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223 is(parallel(8092, '/u_many', 6), "$p1: 2, $p2: 4", 'equal peer'); |
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224 |
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225 # least_conn balancer tests |
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226 |
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227 is(parallel(8094, '/u_lc', 4), "$p1: 1, $p2: 3", 'least_conn'); |
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228 is(peers(8095, '/u_lc_backup', 6), "$p1 $p1 $p2 $p2 $p2 $p2", |
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229 'least_conn backup'); |
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230 is(peers(8096, '/u_lc_backup_lim', 6), "$p1 $p1 $p2 $p2 $p2 ", |
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231 'least_conn backup limited'); |
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232 |
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233 # hash balancer tests |
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234 |
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235 is(parallel(8097, '/u_hash', 4), "$p1: 1, $p2: 2", 'hash'); |
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236 is(parallel(8098, '/u_chash', 4), "$p1: 1, $p2: 2", 'hash consistent'); |
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237 |
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238 ############################################################################### |
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239 |
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240 sub peers { |
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241 my ($port, $uri, $count) = @_; |
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242 |
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243 my @sockets = http_get_multi($port, $uri, $count, 1.1); |
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244 get(8085, '/closeall'); |
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245 |
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246 join ' ', map { defined $_ && /X-Port: (\d+)/ && $1 } |
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247 map { http_end $_ } (@sockets); |
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248 } |
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249 |
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250 sub parallel { |
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251 my ($port, $uri, $count) = @_; |
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252 |
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253 my @sockets = http_get_multi($port, $uri, $count); |
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254 for (1 .. 20) { |
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255 last if IO::Select->new(@sockets)->can_read(3) == $count; |
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256 select undef, undef, undef, 0.01; |
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257 } |
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258 get(8085, '/closeall'); |
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259 return http_end_multi(\@sockets); |
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260 } |
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261 |
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262 sub get { |
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263 my ($port, $uri, %opts) = @_; |
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264 my $s = IO::Socket::INET->new( |
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265 Proto => 'tcp', |
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266 PeerAddr => '127.0.0.1', |
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267 PeerPort => port($port), |
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268 ) |
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269 or die "Can't connect to nginx: $!\n"; |
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270 |
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271 http_get($uri, socket => $s, %opts); |
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272 } |
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273 |
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274 sub http_get_multi { |
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275 my ($port, $uri, $count, $wait) = @_; |
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276 my @sockets; |
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277 |
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278 for (0 .. $count - 1) { |
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279 $sockets[$_] = get($port, $uri, start => 1); |
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280 IO::Select->new($sockets[$_])->can_read($wait) if $wait; |
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281 } |
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282 |
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283 return @sockets; |
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284 } |
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285 |
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286 sub http_end_multi { |
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287 my ($sockets) = @_; |
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288 my %ports; |
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289 |
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290 for my $sock (@$sockets) { |
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291 my $r = http_end($sock); |
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292 if ($r && $r =~ /X-Port: (\d+)/) { |
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293 $ports{$1} = 0 unless defined $ports{$1}; |
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294 $ports{$1}++; |
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295 } |
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296 close $sock; |
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297 } |
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298 |
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299 my @keys = map { my $p = $_; grep { $p == $_ } keys %ports } @ports; |
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300 return join ', ', map { $_ . ": " . $ports{$_} } @keys; |
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301 } |
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302 |
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303 ############################################################################### |
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304 |
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305 sub http_daemon { |
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306 my (@ports) = @_; |
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307 my (@socks, @clients); |
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308 |
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309 for my $port (@ports) { |
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310 my $server = IO::Socket::INET->new( |
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311 Proto => 'tcp', |
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312 LocalHost => "127.0.0.1:$port", |
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313 Listen => 42, |
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314 Reuse => 1 |
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315 ) |
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316 or die "Can't create listening socket: $!\n"; |
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317 push @socks, $server; |
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318 } |
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319 |
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320 my $sel = IO::Select->new(@socks); |
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321 my $skip = 4; |
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322 my $count = 0; |
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323 |
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324 local $SIG{PIPE} = 'IGNORE'; |
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325 |
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326 OUTER: |
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327 while (my @ready = $sel->can_read) { |
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328 foreach my $fh (@ready) { |
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329 if (grep $_ == $fh, @socks) { |
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330 my $new = $fh->accept; |
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331 $new->autoflush(1); |
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332 $sel->add($new); |
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333 $count++; |
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334 |
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335 } else { |
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336 my @busy = grep { $_->sockport() } @ready; |
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337 |
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338 # finish other handles |
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339 if ($fh->sockport() == port(8085) && @busy > 1 |
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340 && grep $_->sockport() != port(8085), |
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341 @busy) |
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342 { |
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343 next; |
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344 } |
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345 |
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346 # late events in other handles |
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347 if ($fh->sockport() == port(8085) && @busy == 1 |
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348 && $count > 1 && $skip-- > 0) |
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349 { |
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350 select undef, undef, undef, 0.1; |
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351 next OUTER; |
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352 } |
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353 |
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354 my $rv = process_socket($fh, \@clients); |
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355 if ($rv == 1) { |
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356 $sel->remove($fh); |
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357 $fh->close; |
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358 } |
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359 if ($rv == 2) { |
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360 for (@clients) { |
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361 $sel->remove($_); |
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362 $_->close; |
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363 } |
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364 $sel->remove($fh); |
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365 $fh->close; |
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366 $skip = 4; |
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367 } |
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368 $count--; |
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369 } |
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370 } |
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371 } |
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372 } |
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373 |
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374 # Returns true to close connection |
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375 |
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376 sub process_socket { |
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377 my ($client, $saved) = @_; |
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378 my $port = $client->sockport(); |
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379 |
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380 my $headers = ''; |
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381 my $uri = ''; |
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382 |
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383 while (<$client>) { |
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384 $headers .= $_; |
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385 last if (/^\x0d?\x0a?$/); |
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386 } |
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387 return 1 if $headers eq ''; |
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388 |
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389 $uri = $1 if $headers =~ /^\S+\s+([^ ]+)\s+HTTP/i; |
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390 return 1 if $uri eq ''; |
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391 |
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392 Test::Nginx::log_core('||', "$port: response, 200"); |
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393 print $client <<EOF; |
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394 HTTP/1.1 200 OK |
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395 X-Port: $port |
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396 |
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397 OK |
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398 EOF |
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399 |
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400 return 2 if $uri =~ /closeall/; |
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401 return 1 if $uri =~ /close/; |
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402 |
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403 push @$saved, $client; |
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404 return 0; |
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405 } |
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406 |
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407 ############################################################################### |