1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
local indexedbheap = require "util.indexedbheap";
local log = require "util.logger".init("timer");
local server = require "net.server";
local math_min = math.min
local math_huge = math.huge
local get_time = require "socket".gettime;
local t_insert = table.insert;
local pairs = pairs;
local type = type;
local data = {};
local new_data = {};
module "timer"
local _add_task;
if not server.event then
function _add_task(delay, callback)
local current_time = get_time();
delay = delay + current_time;
if delay >= current_time then
t_insert(new_data, {delay, callback});
else
local r = callback(current_time);
if r and type(r) == "number" then
return _add_task(r, callback);
end
end
end
server._addtimer(function()
local current_time = get_time();
if #new_data > 0 then
for _, d in pairs(new_data) do
t_insert(data, d);
end
new_data = {};
end
local next_time = math_huge;
for i, d in pairs(data) do
local t, callback = d[1], d[2];
if t <= current_time then
data[i] = nil;
local r = callback(current_time);
if type(r) == "number" then
_add_task(r, callback);
next_time = math_min(next_time, r);
end
else
next_time = math_min(next_time, t - current_time);
end
end
return next_time;
end);
else
local event = server.event;
local event_base = server.event_base;
local EVENT_LEAVE = (event.core and event.core.LEAVE) or -1;
function _add_task(delay, callback)
local event_handle;
event_handle = event_base:addevent(nil, 0, function ()
local ret = callback(get_time());
if ret then
return 0, ret;
elseif event_handle then
return EVENT_LEAVE;
end
end
, delay);
end
end
--add_task = _add_task;
local h = indexedbheap.create();
local params = {};
local next_time = nil;
local _id, _callback, _now, _param;
local function _call() return _callback(_now, _id, _param); end
local function _traceback_handler(err) log("error", "Traceback[timer]: %s", traceback(tostring(err), 2)); end
local function _on_timer(now)
local peek;
while true do
peek = h:peek();
if peek == nil or peek > now then break; end
local _;
_, _callback, _id = h:pop();
_now = now;
_param = params[id];
params[id] = nil;
--item(now, id, _param); -- FIXME pcall
local success, err = xpcall(_call, _traceback_handler);
if success and type(err) == "number" then
h:insert(_callback, err + now, _id); -- re-add
end
end
next_time = peek;
if peek ~= nil then
return peek - now;
end
end
function add_task(delay, callback, param)
local current_time = get_time();
local event_time = current_time + delay;
local id = h:insert(callback, event_time);
params[id] = param;
if next_time == nil or event_time < next_time then
next_time = event_time;
_add_task(next_time - current_time, on_timer);
end
return id;
end
function stop(id)
params[id] = nil;
return h:remove(id);
end
function reschedule(id, delay)
local current_time = get_time();
local event_time = current_time + delay;
h:reprioritize(id, delay);
if next_time == nil or event_time < next_time then
next_time = event_time;
_add_task(next_time - current_time, on_timer);
end
return id;
end
return _M;
|
