prosody
9159546cb2f3
util/timer.lua

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

Software / code / prosody

Annotate

util/timer.lua @ 4655:9159546cb2f3

mod_component: Handle component connecting to non-existent host
author Matthew Wild <mwild1@gmail.com>
date Sun, 22 Apr 2012 16:35:26 +0100
parent 4413:ffa4bed1b716
child 4751:0c7ae4bfc835
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1523
841d61be198f Remove version number from copyright headers
Matthew Wild <mwild1@gmail.com>
parents: 896
diff changeset
1 -- Prosody IM
2923
b7049746bd29 Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
2 -- Copyright (C) 2008-2010 Matthew Wild
b7049746bd29 Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
3 -- Copyright (C) 2008-2010 Waqas Hussain
832
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
4 --
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
5 -- This project is MIT/X11 licensed. Please see the
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
6 -- COPYING file in the source package for more information.
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
7 --
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
8
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
9
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
10 local ns_addtimer = require "net.server".addtimer;
2095
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
11 local event = require "net.server".event;
2098
a1ad06f1c090 util.timer: Fix libevent timers (event.base doesn't exist...)
Matthew Wild <mwild1@gmail.com>
parents: 2095
diff changeset
12 local event_base = require "net.server".event_base;
2095
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
13
3683
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
14 local math_min = math.min
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
15 local math_huge = math.huge
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
16 local get_time = require "socket".gettime;
832
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
17 local t_insert = table.insert;
841
77ff000c2055 util.timer: Fix crash when loaded but no tasks set, fix skipping some tasks when multiple set, and one removed
Matthew Wild <mwild1@gmail.com>
parents: 832
diff changeset
18 local t_remove = table.remove;
77ff000c2055 util.timer: Fix crash when loaded but no tasks set, fix skipping some tasks when multiple set, and one removed
Matthew Wild <mwild1@gmail.com>
parents: 832
diff changeset
19 local ipairs, pairs = ipairs, pairs;
832
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
20 local type = type;
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
21
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
22 local data = {};
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
23 local new_data = {};
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
24
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
25 module "timer"
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
26
2095
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
27 local _add_task;
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
28 if not event then
4413
ffa4bed1b716 util.timer: Variable name change (func -> callback)
Matthew Wild <mwild1@gmail.com>
parents: 4385
diff changeset
29 function _add_task(delay, callback)
2095
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
30 local current_time = get_time();
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
31 delay = delay + current_time;
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
32 if delay >= current_time then
4413
ffa4bed1b716 util.timer: Variable name change (func -> callback)
Matthew Wild <mwild1@gmail.com>
parents: 4385
diff changeset
33 t_insert(new_data, {delay, callback});
2095
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
34 else
4413
ffa4bed1b716 util.timer: Variable name change (func -> callback)
Matthew Wild <mwild1@gmail.com>
parents: 4385
diff changeset
35 local r = callback();
4385
c94167139f27 util.timer: Fix corner case of timer not repeating if it returns <= 0
Matthew Wild <mwild1@gmail.com>
parents: 3683
diff changeset
36 if r and type(r) == "number" then
4413
ffa4bed1b716 util.timer: Variable name change (func -> callback)
Matthew Wild <mwild1@gmail.com>
parents: 4385
diff changeset
37 return _add_task(r, callback);
4385
c94167139f27 util.timer: Fix corner case of timer not repeating if it returns <= 0
Matthew Wild <mwild1@gmail.com>
parents: 3683
diff changeset
38 end
2095
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
39 end
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
40 end
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
41
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
42 ns_addtimer(function()
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
43 local current_time = get_time();
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
44 if #new_data > 0 then
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
45 for _, d in pairs(new_data) do
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
46 t_insert(data, d);
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
47 end
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
48 new_data = {};
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
49 end
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
50
3683
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
51 local next_time = math_huge;
2095
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
52 for i, d in pairs(data) do
4413
ffa4bed1b716 util.timer: Variable name change (func -> callback)
Matthew Wild <mwild1@gmail.com>
parents: 4385
diff changeset
53 local t, callback = d[1], d[2];
2095
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
54 if t <= current_time then
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
55 data[i] = nil;
4413
ffa4bed1b716 util.timer: Variable name change (func -> callback)
Matthew Wild <mwild1@gmail.com>
parents: 4385
diff changeset
56 local r = callback(current_time);
3683
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
57 if type(r) == "number" then
4413
ffa4bed1b716 util.timer: Variable name change (func -> callback)
Matthew Wild <mwild1@gmail.com>
parents: 4385
diff changeset
58 _add_task(r, callback);
3683
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
59 next_time = math_min(next_time, r);
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
60 end
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
61 else
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
62 next_time = math_min(next_time, t - current_time);
2095
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
63 end
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
64 end
3683
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
65 return next_time;
2095
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
66 end);
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
67 else
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
68 local EVENT_LEAVE = (event.core and event.core.LEAVE) or -1;
4413
ffa4bed1b716 util.timer: Variable name change (func -> callback)
Matthew Wild <mwild1@gmail.com>
parents: 4385
diff changeset
69 function _add_task(delay, callback)
2964
49b5c87d2fa0 util.timer: When using libevent hold onto the event handle to stop it being collected (and the timer stopping). Fixes BOSH ghosts, thanks Flo, niekie, waqas.
Matthew Wild <mwild1@gmail.com>
parents: 2925
diff changeset
70 local event_handle;
49b5c87d2fa0 util.timer: When using libevent hold onto the event handle to stop it being collected (and the timer stopping). Fixes BOSH ghosts, thanks Flo, niekie, waqas.
Matthew Wild <mwild1@gmail.com>
parents: 2925
diff changeset
71 event_handle = event_base:addevent(nil, 0, function ()
4413
ffa4bed1b716 util.timer: Variable name change (func -> callback)
Matthew Wild <mwild1@gmail.com>
parents: 4385
diff changeset
72 local ret = callback();
2095
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
73 if ret then
2366
c3a364342cb4 util.timer: Use luaevent's built-in method of repeating an event (fixes a weird crash)
Matthew Wild <mwild1@gmail.com>
parents: 2098
diff changeset
74 return 0, ret;
2964
49b5c87d2fa0 util.timer: When using libevent hold onto the event handle to stop it being collected (and the timer stopping). Fixes BOSH ghosts, thanks Flo, niekie, waqas.
Matthew Wild <mwild1@gmail.com>
parents: 2925
diff changeset
75 elseif event_handle then
2095
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
76 return EVENT_LEAVE;
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
77 end
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
78 end
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
79 , delay);
3256c5d00901 util.timer: Use libevent for lightweight timers if available and configured (use_libevent option)
Matthew Wild <mwild1@gmail.com>
parents: 1871
diff changeset
80 end
832
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
81 end
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
82
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
83 add_task = _add_task;
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
84
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
85 return _M;