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-rw-r--r--teal-src/plugins/mod_cron.tl106
1 files changed, 0 insertions, 106 deletions
diff --git a/teal-src/plugins/mod_cron.tl b/teal-src/plugins/mod_cron.tl
deleted file mode 100644
index f3b8f62f..00000000
--- a/teal-src/plugins/mod_cron.tl
+++ /dev/null
@@ -1,106 +0,0 @@
-module:set_global();
-
-local async = require "util.async";
-local datetime = require "util.datetime";
-
-local record map_store<K,V>
- -- TODO move to somewhere sensible
- get : function (map_store<K,V>, string, K) : V
- set : function (map_store<K,V>, string, K, V)
-end
-
-local enum frequency
- "hourly"
- "daily"
- "weekly"
-end
-
-local record task_spec
- id : string -- unique id
- name : string -- name or short description
- when : frequency
- last : integer
- run : function (task_spec, integer)
- save : function (task_spec, integer)
-end
-
-local record task_event
- source : module
- item : task_spec
-end
-
-local periods : { frequency : integer } = { hourly = 3600, daily = 86400, weekly = 7*86400 }
-
-local active_hosts : { string : boolean } = { }
-
-function module.add_host(host_module : moduleapi)
-
- local last_run_times = host_module:open_store("cron", "map") as map_store<string,integer>;
- active_hosts[host_module.host] = true;
-
- local function save_task(task : task_spec, started_at : integer)
- last_run_times:set(nil, task.id, started_at);
- end
-
- local function task_added(event : task_event) : boolean
- local task = event.item;
- if task.name == nil then
- task.name = task.when;
- end
- if task.id == nil then
- task.id = event.source.name .. "/" .. task.name:gsub("%W", "_"):lower();
- end
- if task.last == nil then
- task.last = last_run_times:get(nil, task.id);
- end
- task.save = save_task;
- module:log("debug", "%s task %s added, last run %s", task.when, task.id,
- task.last and datetime.datetime(task.last) or "never");
- if task.last == nil then
- -- initialize new tasks so e.g. daily tasks run at ~midnight UTC for now
- local now = os.time();
- task.last = now - now % periods[task.when];
- end
- return true;
- end
-
- local function task_removed(event : task_event) : boolean
- local task = event.item;
- host_module:log("debug", "Task %s removed", task.id);
- return true;
- end
-
- host_module:handle_items("task", task_added, task_removed, true);
-
- function host_module.unload()
- active_hosts[host_module.host]=nil;
- end
-end
-
-local function should_run(when : frequency, last : integer) : boolean
- return not last or last + periods[when]*0.995 <= os.time();
-end
-
-local function run_task(task : task_spec)
- local started_at = os.time();
- task:run(started_at);
- task.last = started_at;
- task:save(started_at);
-end
-
-local task_runner = async.runner(run_task);
-module:add_timer(1, function() : integer
- module:log("info", "Running periodic tasks");
- local delay = 3600;
- for host in pairs(active_hosts) do
- module:log("debug", "Running periodic tasks for host %s", host);
- for _, task in ipairs(module:context(host):get_host_items("task") as { task_spec } ) do
- module:log("debug", "Considering %s task %s (%s)", task.when, task.id, task.run);
- if should_run(task.when, task.last) then task_runner:run(task); end
- end
- end
- module:log("debug", "Wait %ds", delay);
- return delay;
-end);
-
--- TODO measure load, pick a good time to do stuff