Mercurial > prosody-modules

annotate mod_statistics_statsman/mod_statistics_statsman.lua @ 4315:87e250409998

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author Kim Alvefur <zash@zash.se>
date Sat, 02 Jan 2021 15:28:45 +0100
parents 78885053cd80
children bac3dae031ee
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2558ece20e58 mod_statistics_statsman: Streaming access to statsmanager
Kim Alvefur <zash@zash.se>
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1 module:set_global();
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2
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3 local statsman = require "core.statsmanager";
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4 local time_now = require "util.time".now;
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5 local filters = require "util.filters";
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6 local serialize = require "util.serialization".serialize;
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7
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8 local statistics_interval = module:context("*"):get_option_number("statistics_interval", 60);
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9 if module:context("*"):get_option("statistics", "internal") ~= "internal" then
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10 module:log("error", "Not using internal statistics, can't do anyting");
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11 return;
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12 end
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13
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14 local sessions = {};
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15
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16 local name_map = {
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17 ["start_time"] = "up_since";
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18 ["cpu.percent:amount"] = "cpu";
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19 ["cpu.clock:amount"] = "cpu_total";
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3a06b0b6ba67 mod_statistics_statsman: Update for change stats type change in mod_measure_memory
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20 ["memory.allocated_mmap:amount"] = "memory_allocated_mmap";
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21 ["memory.allocated:amount"] = "memory_allocated";
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22 ["memory.lua:amount"] = "memory_lua";
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23 ["memory.returnable:amount"] = "memory_returnable";
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24 ["memory.rss:amount"] = "memory_rss";
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25 ["memory.total:amount"] = "memory_total";
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26 ["memory.unused:amount"] = "memory_unused";
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27 ["memory.used:amount"] = "memory_used";
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28 ["/*/mod_c2s/connections:amount"] = "total_c2s";
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29 ["/*/mod_s2s/connections:amount"] = "total_s2s";
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30 };
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31
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32 local function push_stat(conn, name, value)
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33 local value_str = serialize(value);
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34 name = name_map[name] or name;
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35 return conn:write((("STAT %q (%s)\n"):format(name, value_str):gsub("\\\n", "\\n")));
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36 end
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37
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38 local function push_stat_to_all(name, value)
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39 for conn in pairs(sessions) do
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40 push_stat(conn, name, value);
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41 end
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42 end
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43
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44 local session_stats_tpl = ([[{
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45 message_in = %d, message_out = %d;
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46 presence_in = %d, presence_out = %d;
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47 iq_in = %d, iq_out = %d;
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48 bytes_in = %d, bytes_out = %d;
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49 }]]):gsub("%s", "");
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50
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51
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52 local jid_fields = {
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53 c2s = "full_jid";
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54 s2sin = "from_host";
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55 s2sout = "to_host";
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56 component = "host";
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57 };
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58
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59 local function push_session_to_all(session, stats)
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60 local id = tostring(session):match("[a-f0-9]+$"); -- FIXME: Better id? :/
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61 local stanzas_in, stanzas_out = stats.stanzas_in, stats.stanzas_out;
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62 local s = (session_stats_tpl):format(
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63 stanzas_in.message, stanzas_out.message,
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64 stanzas_in.presence, stanzas_out.presence,
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65 stanzas_in.iq, stanzas_out.iq,
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66 stats.bytes_in, stats.bytes_out);
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67 local jid = session[jid_fields[session.type]] or "";
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68 for conn in pairs(sessions) do
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69 conn:write(("SESS %q %q %s\n"):format(id, jid, s));
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70 end
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71 end
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72
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73 local active_sessions = {};
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74
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75 -- Network listener
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76 local listener = {};
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77
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78 function listener.onconnect(conn)
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79 sessions[conn] = true;
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80 push_stat(conn, "version", prosody.version);
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81 push_stat(conn, "start_time", prosody.start_time);
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82 push_stat(conn, "statistics_interval", statistics_interval);
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83 push_stat(conn, "time", time_now());
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84 local stats = statsman.get_stats();
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85 for name, value in pairs(stats) do
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86 push_stat(conn, name, value);
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87 end
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88 conn:write("\n"); -- Signal end of first batch (for non-streaming clients)
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89 end
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90
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91 function listener.onincoming(conn, data) -- luacheck: ignore 212
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92 -- Discarded
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93 end
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94
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95 function listener.ondisconnect(conn)
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96 sessions[conn] = nil;
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97 end
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98
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99 function listener.onreadtimeout()
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100 return true;
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101 end
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102
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103 local add_statistics_filter; -- forward decl
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104 if prosody and prosody.arg then -- ensures we aren't in prosodyctl
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105 setmetatable(active_sessions, {
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106 __index = function ( t, k )
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107 local v = {
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108 bytes_in = 0, bytes_out = 0;
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109 stanzas_in = {
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110 message = 0, presence = 0, iq = 0;
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111 };
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112 stanzas_out = {
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113 message = 0, presence = 0, iq = 0;
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114 };
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115 }
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116 rawset(t, k, v);
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117 return v;
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118 end
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119 });
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120 local function handle_stanza_in(stanza, session)
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121 local s = active_sessions[session].stanzas_in;
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122 local n = s[stanza.name];
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123 if n then
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124 s[stanza.name] = n + 1;
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125 end
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126 return stanza;
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127 end
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128 local function handle_stanza_out(stanza, session)
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129 local s = active_sessions[session].stanzas_out;
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130 local n = s[stanza.name];
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131 if n then
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132 s[stanza.name] = n + 1;
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133 end
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134 return stanza;
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135 end
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136 local function handle_bytes_in(bytes, session)
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137 local s = active_sessions[session];
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138 s.bytes_in = s.bytes_in + #bytes;
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139 return bytes;
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140 end
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141 local function handle_bytes_out(bytes, session)
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142 local s = active_sessions[session];
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143 s.bytes_out = s.bytes_out + #bytes;
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144 return bytes;
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145 end
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146 function add_statistics_filter(session)
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147 filters.add_filter(session, "stanzas/in", handle_stanza_in);
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148 filters.add_filter(session, "stanzas/out", handle_stanza_out);
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149 filters.add_filter(session, "bytes/in", handle_bytes_in);
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150 filters.add_filter(session, "bytes/out", handle_bytes_out);
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151 end
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152 end
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153
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154
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155 function module.load()
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156 if not(prosody and prosody.arg) then
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157 return;
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158 end
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159 filters.add_filter_hook(add_statistics_filter);
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160
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161 module:add_timer(1, function ()
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162 for session, session_stats in pairs(active_sessions) do
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163 active_sessions[session] = nil;
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164 push_session_to_all(session, session_stats);
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165 end
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166 return 1;
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167 end);
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168
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169 module:hook("stats-updated", function (event)
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170 local stats = event.changed_stats;
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171 push_stat_to_all("time", time_now());
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172 for name, value in pairs(stats) do
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173 push_stat_to_all(name, value);
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174 end
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175 end);
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176
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177 module:hook("server-stopping", function ()
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178 push_stat_to_all("stop_time", time_now());
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179 end);
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180 end
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181 function module.unload()
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182 filters.remove_filter_hook(add_statistics_filter);
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183 end
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184
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185 if prosody and prosody.arg then
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186 module:provides("net", {
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187 default_port = 5782;
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188 listener = listener;
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189 private = true;
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190 });
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191 end