prosody
ce403b6470f8
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 @ 9570:ce403b6470f8

util.serialization: Encode non-fatal error in way that can be restored It could previously encode to eg `{ [nil] = ... }` which doesn't get decoded
author Kim Alvefur <zash@zash.se>
date Sat, 27 Oct 2018 12:56:01 +0200
parent 8555:4f0f5b49bb03
child 12545:5059a639f61e
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;
8555
4f0f5b49bb03 vairious: Add annotation when an empty environment is set [luacheck]
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
6 -- luacheck: std none
4401
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
7
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
8 local watchdog_methods = {};
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
9 local watchdog_mt = { __index = watchdog_methods };
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
10
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
11 local function new(timeout, callback)
4401
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
12 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
13 timer.add_task(timeout+1, function (current_time)
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
14 local last_reset = watchdog.last_reset;
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
15 if not last_reset then
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
16 return;
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
17 end
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
18 local time_left = (last_reset + timeout) - current_time;
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
19 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
20 return watchdog:callback();
4401
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
21 end
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
22 return time_left + 1;
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
23 end);
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
24 return watchdog;
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
25 end
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
26
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
27 function watchdog_methods:reset()
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
28 self.last_reset = os_time();
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
29 end
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
30
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
31 function watchdog_methods:cancel()
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
32 self.last_reset = nil;
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
33 end
0ed617f58404 util.watchdog: Watchdog timer library
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
34
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
35 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
36 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
37 };