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annotate mod_log_slow_events/mod_log_slow_events.lua @ 1695:78b3b3add19c

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mod_log_slow_events: Minor improvement to log message
author Matthew Wild <mwild1@gmail.com>
date Tue, 05 May 2015 14:20:53 +0100
parents a9df1f7e273d
children efc1d674eac0
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1 local time = require "socket".gettime;
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2
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3 local max_seconds = module:get_option_number("log_slow_events_threshold", 0.5);
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4
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5 module:wrap_event(false, function (handlers, event_name, event_data)
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6 local start = time();
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7 local ret = handlers(event_name, event_data);
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8 local duration = time()-start;
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9 if duration > max_seconds then
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10 local data = {};
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11 if event_data then
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12 local function log_data(name, value)
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13 if value then
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14 table.insert(data, ("%s=%q"):format(name, value));
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15 return true;
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16 end
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17 end
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18 local sess = event_data.origin or event_data.session;
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19 if sess then
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20 log_data("ip", sess.ip);
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21 if not log_data("full_jid", sess.full_jid) then
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22 log_data("username", sess.username);
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23 end
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24 log_data("type", sess.type);
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25 log_data("host", sess.host);
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26 end
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27 local stanza = event_data.stanza;
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28 if stanza then
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29 log_data("stanza", tostring(stanza));
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30 end
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31 end
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32 module:log("warn", "Slow event '%s' took %0.2fs: %s", event_name, duration, next(data) and table.concat(data, ", ") or "no recognised data");
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33 end
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34 return ret;
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35 end);