Mercurial > prosody-modules

annotate mod_statistics_statsman/mod_statistics_statsman.lua @ 5739:7e6bf0a5aef2

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misc: Add a basic grafterm dashboard For those of us who would rather have less JavaScript
author Kim Alvefur <zash@zash.se>
date Mon, 27 Nov 2023 17:16:15 +0100
parents bac3dae031ee
children
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2558ece20e58 mod_statistics_statsman: Streaming access to statsmanager
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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 assert(statsman.get_stats, "not compatible with trunk based on openmetrics");
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9
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10 local statistics_interval = module:context("*"):get_option_number("statistics_interval", 60);
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11 if module:context("*"):get_option("statistics", "internal") ~= "internal" then
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12 module:log("error", "Not using internal statistics, can't do anyting");
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13 return;
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14 end
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15
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16 local sessions = {};
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17
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18 local name_map = {
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19 ["start_time"] = "up_since";
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20 ["cpu.percent:amount"] = "cpu";
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21 ["cpu.clock:amount"] = "cpu_total";
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22 ["memory.allocated_mmap:amount"] = "memory_allocated_mmap";
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23 ["memory.allocated:amount"] = "memory_allocated";
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24 ["memory.lua:amount"] = "memory_lua";
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25 ["memory.returnable:amount"] = "memory_returnable";
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26 ["memory.rss:amount"] = "memory_rss";
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27 ["memory.total:amount"] = "memory_total";
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28 ["memory.unused:amount"] = "memory_unused";
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29 ["memory.used:amount"] = "memory_used";
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30 ["/*/mod_c2s/connections:amount"] = "total_c2s";
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31 ["/*/mod_s2s/connections:amount"] = "total_s2s";
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32 };
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33
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34 local function push_stat(conn, name, value)
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35 local value_str = serialize(value);
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36 name = name_map[name] or name;
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37 return conn:write((("STAT %q (%s)\n"):format(name, value_str):gsub("\\\n", "\\n")));
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38 end
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39
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40 local function push_stat_to_all(name, value)
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41 for conn in pairs(sessions) do
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42 push_stat(conn, name, value);
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43 end
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44 end
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45
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46 local session_stats_tpl = ([[{
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47 message_in = %d, message_out = %d;
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48 presence_in = %d, presence_out = %d;
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49 iq_in = %d, iq_out = %d;
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50 bytes_in = %d, bytes_out = %d;
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51 }]]):gsub("%s", "");
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52
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53
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54 local jid_fields = {
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55 c2s = "full_jid";
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56 s2sin = "from_host";
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57 s2sout = "to_host";
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58 component = "host";
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59 };
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60
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61 local function push_session_to_all(session, stats)
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62 local id = tostring(session):match("[a-f0-9]+$"); -- FIXME: Better id? :/
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63 local stanzas_in, stanzas_out = stats.stanzas_in, stats.stanzas_out;
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64 local s = (session_stats_tpl):format(
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65 stanzas_in.message, stanzas_out.message,
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66 stanzas_in.presence, stanzas_out.presence,
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67 stanzas_in.iq, stanzas_out.iq,
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68 stats.bytes_in, stats.bytes_out);
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69 local jid = session[jid_fields[session.type]] or "";
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70 for conn in pairs(sessions) do
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71 conn:write(("SESS %q %q %s\n"):format(id, jid, s));
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72 end
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73 end
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74
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75 local active_sessions = {};
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76
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77 -- Network listener
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78 local listener = {};
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79
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80 function listener.onconnect(conn)
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81 sessions[conn] = true;
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82 push_stat(conn, "version", prosody.version);
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83 push_stat(conn, "start_time", prosody.start_time);
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84 push_stat(conn, "statistics_interval", statistics_interval);
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85 push_stat(conn, "time", time_now());
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86 local stats = statsman.get_stats();
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87 for name, value in pairs(stats) do
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88 push_stat(conn, name, value);
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89 end
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90 conn:write("\n"); -- Signal end of first batch (for non-streaming clients)
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91 end
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92
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93 function listener.onincoming(conn, data) -- luacheck: ignore 212
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94 -- Discarded
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95 end
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96
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97 function listener.ondisconnect(conn)
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98 sessions[conn] = nil;
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99 end
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100
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101 function listener.onreadtimeout()
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102 return true;
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103 end
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104
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105 local add_statistics_filter; -- forward decl
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106 if prosody and prosody.arg then -- ensures we aren't in prosodyctl
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107 setmetatable(active_sessions, {
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108 __index = function ( t, k )
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109 local v = {
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110 bytes_in = 0, bytes_out = 0;
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111 stanzas_in = {
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112 message = 0, presence = 0, iq = 0;
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113 };
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114 stanzas_out = {
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115 message = 0, presence = 0, iq = 0;
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116 };
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117 }
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118 rawset(t, k, v);
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119 return v;
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120 end
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121 });
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122 local function handle_stanza_in(stanza, session)
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123 local s = active_sessions[session].stanzas_in;
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124 local n = s[stanza.name];
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125 if n then
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126 s[stanza.name] = n + 1;
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127 end
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128 return stanza;
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129 end
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130 local function handle_stanza_out(stanza, session)
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131 local s = active_sessions[session].stanzas_out;
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132 local n = s[stanza.name];
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133 if n then
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134 s[stanza.name] = n + 1;
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135 end
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136 return stanza;
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137 end
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138 local function handle_bytes_in(bytes, session)
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139 local s = active_sessions[session];
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140 s.bytes_in = s.bytes_in + #bytes;
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141 return bytes;
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142 end
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143 local function handle_bytes_out(bytes, session)
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144 local s = active_sessions[session];
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145 s.bytes_out = s.bytes_out + #bytes;
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146 return bytes;
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147 end
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Kim Alvefur <zash@zash.se>
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148 function add_statistics_filter(session)
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149 filters.add_filter(session, "stanzas/in", handle_stanza_in);
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150 filters.add_filter(session, "stanzas/out", handle_stanza_out);
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151 filters.add_filter(session, "bytes/in", handle_bytes_in);
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152 filters.add_filter(session, "bytes/out", handle_bytes_out);
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153 end
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Kim Alvefur <zash@zash.se>
parents:
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154 end
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Kim Alvefur <zash@zash.se>
parents:
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155
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Kim Alvefur <zash@zash.se>
parents:
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156
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Kim Alvefur <zash@zash.se>
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157 function module.load()
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158 if not(prosody and prosody.arg) then
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159 return;
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parents:
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160 end
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Kim Alvefur <zash@zash.se>
parents:
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161 filters.add_filter_hook(add_statistics_filter);
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162
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Kim Alvefur <zash@zash.se>
parents:
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163 module:add_timer(1, function ()
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Kim Alvefur <zash@zash.se>
parents:
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164 for session, session_stats in pairs(active_sessions) do
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165 active_sessions[session] = nil;
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166 push_session_to_all(session, session_stats);
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parents:
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167 end
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Kim Alvefur <zash@zash.se>
parents:
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168 return 1;
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parents:
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169 end);
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parents:
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170
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171 module:hook("stats-updated", function (event)
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172 local stats = event.changed_stats;
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173 push_stat_to_all("time", time_now());
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Kim Alvefur <zash@zash.se>
parents:
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174 for name, value in pairs(stats) do
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parents:
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175 push_stat_to_all(name, value);
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parents:
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176 end
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Kim Alvefur <zash@zash.se>
parents:
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177 end);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
178
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Kim Alvefur <zash@zash.se>
parents:
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179 module:hook("server-stopping", function ()
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Kim Alvefur <zash@zash.se>
parents:
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180 push_stat_to_all("stop_time", time_now());
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parents:
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181 end);
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Kim Alvefur <zash@zash.se>
parents:
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182 end
2558ece20e58 mod_statistics_statsman: Streaming access to statsmanager
Kim Alvefur <zash@zash.se>
parents:
diff changeset
183 function module.unload()
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Kim Alvefur <zash@zash.se>
parents:
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184 filters.remove_filter_hook(add_statistics_filter);
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Kim Alvefur <zash@zash.se>
parents:
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185 end
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
186
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Kim Alvefur <zash@zash.se>
parents:
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187 if prosody and prosody.arg then
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Kim Alvefur <zash@zash.se>
parents:
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188 module:provides("net", {
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Kim Alvefur <zash@zash.se>
parents:
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189 default_port = 5782;
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Kim Alvefur <zash@zash.se>
parents:
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190 listener = listener;
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Kim Alvefur <zash@zash.se>
parents:
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191 private = true;
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
192 });
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
193 end