prosody
8fc3c06f922d
plugins/mod_cron.lua

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plugins/mod_cron.lua @ 12319:8fc3c06f922d

prosodyctl: check dns: List discovered addresses for diagnostic purposes It is very common to get the "unknown address" warning with this command, but people do not always understand it, or know how to debug it. Now we clearly show the addresses that prosodyctl discovered.
author Matthew Wild <mwild1@gmail.com>
date Wed, 02 Mar 2022 16:02:42 +0000
parent 12186:7f25ac9d8f0d
child 12489:8b42575738f0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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11986
3d5135e8a2a7 mod_cron: Initial commit of periodic task runner
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1 module:set_global();
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2
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3 local async = require("util.async");
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4 local datetime = require("util.datetime");
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5
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6 local periods = { hourly = 3600; daily = 86400; weekly = 7 * 86400 }
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7
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8 local active_hosts = {}
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9
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10 function module.add_host(host_module)
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11
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12 local last_run_times = host_module:open_store("cron", "map");
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13 active_hosts[host_module.host] = true;
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14
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15 local function save_task(task, started_at) last_run_times:set(nil, task.id, started_at); end
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16
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17 local function task_added(event)
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18 local task = event.item;
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19 if task.name == nil then task.name = task.when; end
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20 if task.id == nil then task.id = event.source.name .. "/" .. task.name:gsub("%W", "_"):lower(); end
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21 if task.last == nil then task.last = last_run_times:get(nil, task.id); end
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22 task.save = save_task;
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23 module:log("debug", "%s task %s added, last run %s", task.when, task.id,
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24 task.last and datetime.datetime(task.last) or "never");
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25 if task.last == nil then
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26 local now = os.time();
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27 task.last = now - now % periods[task.when];
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28 end
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29 return true
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30 end
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31
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32 local function task_removed(event)
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33 local task = event.item;
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34 host_module:log("debug", "Task %s removed", task.id);
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35 return true
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36 end
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37
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38 host_module:handle_items("task", task_added, task_removed, true);
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39
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40 function host_module.unload() active_hosts[host_module.host] = nil; end
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41 end
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42
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43 local function should_run(when, last) return not last or last + periods[when] * 0.995 <= os.time() end
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44
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45 local function run_task(task)
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46 local started_at = os.time();
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47 task:run(started_at);
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48 task:save(started_at);
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49 end
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50
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51 local task_runner = async.runner(run_task);
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52 scheduled = module:add_timer(1, function()
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53 module:log("info", "Running periodic tasks");
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54 local delay = 3600;
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55 for host in pairs(active_hosts) do
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56 module:log("debug", "Running periodic tasks for host %s", host);
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57 for _, task in ipairs(module:context(host):get_host_items("task")) do
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58 module:log("debug", "Considering %s task %s (%s)", task.when, task.id, task.run);
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59 if should_run(task.when, task.last) then task_runner:run(task); end
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60 end
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61 end
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62 module:log("debug", "Wait %ds", delay);
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63 return delay
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64 end);