prosody
83f18982bcfd
util/watchdog.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody

Annotate

util/watchdog.lua @ 8021:83f18982bcfd

mod_storage_internal: Add basic archive store implementation
author Kim Alvefur <zash@zash.se>
date Fri, 31 Mar 2017 17:47:06 +0200
parent 6777:5de6b93d0190
child 8555:4f0f5b49bb03
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4401
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
1 local timer = require "util.timer";
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
2 local setmetatable = setmetatable;
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
3 local os_time = os.time;
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
4
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 4891
diff changeset
5 local _ENV = nil;
4401
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
6
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
7 local watchdog_methods = {};
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
8 local watchdog_mt = { __index = watchdog_methods };
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
9
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 4891
diff changeset
10 local function new(timeout, callback)
4401
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
11 local watchdog = setmetatable({ timeout = timeout, last_reset = os_time(), callback = callback }, watchdog_mt);
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
12 timer.add_task(timeout+1, function (current_time)
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
13 local last_reset = watchdog.last_reset;
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
14 if not last_reset then
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
15 return;
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
16 end
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
17 local time_left = (last_reset + timeout) - current_time;
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
18 if time_left < 0 then
4891
189cfe565d03 util.watchdog: Pass watchdog object to callback so that it doesn't always have to be a closure
Matthew Wild <mwild1@gmail.com>
parents: 4401
diff changeset
19 return watchdog:callback();
4401
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
20 end
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
21 return time_left + 1;
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
22 end);
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
23 return watchdog;
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
24 end
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
25
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
26 function watchdog_methods:reset()
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
27 self.last_reset = os_time();
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
28 end
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
29
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
30 function watchdog_methods:cancel()
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
31 self.last_reset = nil;
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
32 end
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
33
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 4891
diff changeset
34 return {
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 4891
diff changeset
35 new = new;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 4891
diff changeset
36 };