Annotate

util/timer.lua @ 6878:53a74a80c91a

configure, util-src/Makefile: Move OS X deployment flag to an C compiler argument set by configure
author Kim Alvefur <zash@zash.se>
date Sat, 26 Sep 2015 23:42:46 +0200
parent 6777:5de6b93d0190
child 6791:e813e8cf6046
child 7988:dc758422d896
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
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 4871
diff changeset
4 --
832
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
4808
07d0a3a75c8a net.server, net.timer, net.server_select: Rearrange dependencies between these three modules. server.addtimer() is no longer a public function (renamed to _addtimer) and is not available at all from server_event (compat code removed to prevent traceback) (thanks Nulani)
Matthew Wild <mwild1@gmail.com>
parents: 4751
diff changeset
9 local server = require "net.server";
3683
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
10 local math_min = math.min
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
11 local math_huge = math.huge
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
12 local get_time = require "socket".gettime;
832
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
13 local t_insert = table.insert;
4751
0c7ae4bfc835 util.timer: Remove unused function imports
Matthew Wild <mwild1@gmail.com>
parents: 4413
diff changeset
14 local pairs = pairs;
832
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
15 local type = type;
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
16
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
17 local data = {};
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
18 local new_data = {};
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
19
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: 5776
diff changeset
20 local _ENV = nil;
832
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
21
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
22 local _add_task;
4808
07d0a3a75c8a net.server, net.timer, net.server_select: Rearrange dependencies between these three modules. server.addtimer() is no longer a public function (renamed to _addtimer) and is not available at all from server_event (compat code removed to prevent traceback) (thanks Nulani)
Matthew Wild <mwild1@gmail.com>
parents: 4751
diff changeset
23 if not server.event then
4413
ffa4bed1b716 util.timer: Variable name change (func -> callback)
Matthew Wild <mwild1@gmail.com>
parents: 4385
diff changeset
24 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
25 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
26 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
27 if delay >= current_time then
4413
ffa4bed1b716 util.timer: Variable name change (func -> callback)
Matthew Wild <mwild1@gmail.com>
parents: 4385
diff changeset
28 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
29 else
4871
b2d177f2febc util.timer: Always pass the current time to timer callbacks.
Waqas Hussain <waqas20@gmail.com>
parents: 4812
diff changeset
30 local r = callback(current_time);
4385
c94167139f27 util.timer: Fix corner case of timer not repeating if it returns <= 0
Matthew Wild <mwild1@gmail.com>
parents: 3683
diff changeset
31 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
32 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
33 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
34 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
35 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
36
4808
07d0a3a75c8a net.server, net.timer, net.server_select: Rearrange dependencies between these three modules. server.addtimer() is no longer a public function (renamed to _addtimer) and is not available at all from server_event (compat code removed to prevent traceback) (thanks Nulani)
Matthew Wild <mwild1@gmail.com>
parents: 4751
diff changeset
37 server._addtimer(function()
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
38 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
39 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
40 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
41 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
42 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
43 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
44 end
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 4871
diff changeset
45
3683
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
46 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
47 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
48 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
49 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
50 data[i] = nil;
4413
ffa4bed1b716 util.timer: Variable name change (func -> callback)
Matthew Wild <mwild1@gmail.com>
parents: 4385
diff changeset
51 local r = callback(current_time);
3683
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
52 if type(r) == "number" then
4413
ffa4bed1b716 util.timer: Variable name change (func -> callback)
Matthew Wild <mwild1@gmail.com>
parents: 4385
diff changeset
53 _add_task(r, callback);
3683
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
54 next_time = math_min(next_time, r);
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
55 end
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
56 else
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
57 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
58 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
59 end
3683
c2158221e2e6 util.timer: Activate higher timer precision.
Waqas Hussain <waqas20@gmail.com>
parents: 2964
diff changeset
60 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
61 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
62 else
4812
5bcdc384e485 util.timer: Remove unnecessary require calls, fixes a traceback (thanks nulani)
Matthew Wild <mwild1@gmail.com>
parents: 4808
diff changeset
63 local event = server.event;
5bcdc384e485 util.timer: Remove unnecessary require calls, fixes a traceback (thanks nulani)
Matthew Wild <mwild1@gmail.com>
parents: 4808
diff changeset
64 local event_base = 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
65 local EVENT_LEAVE = (event.core and event.core.LEAVE) or -1;
4808
07d0a3a75c8a net.server, net.timer, net.server_select: Rearrange dependencies between these three modules. server.addtimer() is no longer a public function (renamed to _addtimer) and is not available at all from server_event (compat code removed to prevent traceback) (thanks Nulani)
Matthew Wild <mwild1@gmail.com>
parents: 4751
diff changeset
66
4413
ffa4bed1b716 util.timer: Variable name change (func -> callback)
Matthew Wild <mwild1@gmail.com>
parents: 4385
diff changeset
67 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
68 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
69 event_handle = event_base:addevent(nil, 0, function ()
4871
b2d177f2febc util.timer: Always pass the current time to timer callbacks.
Waqas Hussain <waqas20@gmail.com>
parents: 4812
diff changeset
70 local ret = callback(get_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
71 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
72 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
73 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
74 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
75 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
76 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
77 , 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
78 end
832
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
79 end
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
80
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: 5776
diff changeset
81 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: 5776
diff changeset
82 add_task = _add_task;
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: 5776
diff changeset
83 };