annotate mod_streamstats/mod_streamstats.lua @ 4976:75b6e5df65f9

various: Improve error reporting if missing file server module on 0.12 If there is some error loading net.http.files then it would be swallowed by the pcall and then it would proceed to trying mod_http_files, which might cause unexpected behavior on 0.12 Ref #1765
author Kim Alvefur <zash@zash.se>
date Mon, 18 Jul 2022 22:47:54 +0200
parents a7f7a7e75737
children
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1 module:set_global();
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2 local stats = module:shared"stats";
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3 local iter = require "util.iterators";
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4 local count, keys = iter.count, iter.keys;
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5
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6 stats.stats = stats.stats or {};
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7 stats.conns = stats.conns or {};
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8
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9 setmetatable(stats, {
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10 __index = {
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11
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12 broadcast = function (self, stat)
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13 local value = self.stats[stat];
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14 for conn in pairs(self.conns) do
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15 conn:write(stat..":"..value.."\n");
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16 end
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17 end;
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18
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19 adjust = function (self, stat, delta)
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20 if delta == 0 then return; end
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21 self.stats[stat] = (self.stats[stat] or 0) + delta;
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22 self:broadcast(stat);
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23 end;
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24
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25 set = function (self, stat, value)
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26 if value == self.stats[stat] then return; end
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27 self.stats[stat] = value;
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28 self:broadcast(stat);
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29 end;
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30
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31 add_conn = function (self, conn)
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32 self.conns[conn] = true;
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33 for stat, value in pairs(self.stats) do
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34 conn:write(stat..":"..value.."\n");
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35 end
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36 end;
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37
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38 remove_conn = function (self, conn)
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39 self.conns[conn] = nil;
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40 end;
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41 };
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42 });
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43
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44 local network = {};
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45
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46 function network.onconnect(conn)
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47 stats:add_conn(conn);
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48 end
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49
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50 function network.onincoming(conn, data)
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51 end
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52
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53 function network.ondisconnect(conn, reason)
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54 stats:remove_conn(conn);
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55 end
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56
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57 module:add_timer(1, function ()
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58 stats:set("s2s-in", count(keys(prosody.incoming_s2s)));
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59 return math.random(10, 20);
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60 end);
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61 module:add_timer(3, function ()
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62 local s2sout_count = 0;
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63 for _, host in pairs(prosody.hosts) do
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64 s2sout_count = s2sout_count + count(keys(host.s2sout));
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65 end
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66 stats:set("s2s-out", s2sout_count);
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67 return math.random(10, 20);
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68 end);
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70
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71 function module.add_host(module)
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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:set("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);
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99 end
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100
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101 module:provides("net", {
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102 default_port = 5444;
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103 listener = network;
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104 });