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annotate mod_streamstats/mod_streamstats.lua @ 685:19698c5f3ab3

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mod_host_guard: prevent possible traces in case there isn't a conn object on the session by adding a dummy replacement function.
author Marco Cirillo <maranda@lightwitch.org>
date Sun, 27 May 2012 04:44:24 +0000
parents d4f3754c4286
children a7f7a7e75737
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d137515e0701 mod_streamstats: New module that streams live stats from Prosody over a TCP stream
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1 local stats = prosody.stats;
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d4f3754c4286 mod_streamstats: Import count and keys from util.iterators
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2 local iter = require "util.iterators";
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3 local count, keys = iter.count, iter.keys;
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4
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5 if not stats then
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6 stats = {
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7 stats = {}; conns = {};
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8
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9 broadcast = function (self, stat)
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10 local value = self.stats[stat];
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11 for conn in pairs(self.conns) do
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12 conn:write(stat..":"..value.."\n");
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13 end
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14 end;
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16 adjust = function (self, stat, delta)
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17 if delta == 0 then return; end
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18 self.stats[stat] = (self.stats[stat] or 0) + delta;
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19 self:broadcast(stat);
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20 end;
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21
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22 set = function (self, stat, value)
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23 if value == self.stats[stat] then return; end
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24 self.stats[stat] = value;
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25 self:broadcast(stat);
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26 end;
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27
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28 add_conn = function (self, conn)
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29 self.conns[conn] = true;
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30 for stat, value in pairs(self.stats) do
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31 conn:write(stat..":"..value.."\n");
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32 end
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33 end;
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34
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35 remove_conn = function (self, conn)
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36 self.conns[conn] = nil;
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37 end;
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38 };
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39 prosody.stats = stats;
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40
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41 local network = {};
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42
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43 function network.onconnect(conn)
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44 stats:add_conn(conn);
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45 end
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46
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47 function network.onincoming(conn, data)
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48 end
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49
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50 function network.ondisconnect(conn, reason)
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51 stats:remove_conn(conn);
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52 end
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53
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54 require "util.iterators";
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55 require "util.timer".add_task(1, function ()
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56 stats:set("s2s-in", count(keys(prosody.incoming_s2s)));
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57 return math.random(10, 20);
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58 end);
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59 require "util.timer".add_task(3, function ()
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60 local s2sout_count = 0;
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61 for _, host in pairs(prosody.hosts) do
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62 s2sout_count = s2sout_count + count(keys(host.s2sout));
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63 end
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64 stats:set("s2s-out", s2sout_count);
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65 return math.random(10, 20);
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66 end);
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67
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68 require "net.connlisteners".register("stats", network);
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69 require "net.connlisteners".start("stats", { port = module:get_option("stats_ports") or 5444, interface = "127.0.0.1" });
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70 end
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71
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72 module:hook("resource-bind", function ()
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73 stats:adjust("c2s", 1);
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74 end);
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75 module:hook("resource-unbind", function ()
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76 stats:adjust("c2s", -1);
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77 end);
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78
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79 local c2s_count = 0;
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80 for username, user in pairs(hosts[module.host].sessions or {}) do
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81 for resource, session in pairs(user.sessions or {}) do
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82 c2s_count = c2s_count + 1;
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83 end
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84 end
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85 stats:adjust("c2s", c2s_count);
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86
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87 module:hook("s2sin-established", function (event)
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88 stats:adjust("s2s-in", 1);
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89 end);
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90 module:hook("s2sin-destroyed", function (event)
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91 stats:adjust("s2s-in", -1);
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92 end);
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93 module:hook("s2sout-established", function (event)
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94 stats:adjust("s2s-out", 1);
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95 end);
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96 module:hook("s2sout-destroyed", function (event)
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97 stats:adjust("s2s-out", -1);
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98 end);