prosody
e10b623ccecb
util/timer.lua

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util/timer.lua @ 4784:e10b623ccecb

net.httpserver: Add compatibility stub
author Matthew Wild <mwild1@gmail.com>
date Sat, 28 Apr 2012 16:41:35 +0100
parent 4751:0c7ae4bfc835
child 4808:07d0a3a75c8a
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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10 local ns_addtimer = require "net.server".addtimer;
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11 local event = require "net.server".event;
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12 local event_base = require "net.server".event_base;
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13
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14 local math_min = math.min
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15 local math_huge = math.huge
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16 local get_time = require "socket".gettime;
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17 local t_insert = table.insert;
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18 local pairs = pairs;
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19 local type = type;
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20
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21 local data = {};
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22 local new_data = {};
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23
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24 module "timer"
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25
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26 local _add_task;
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27 if not event then
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28 function _add_task(delay, callback)
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29 local current_time = get_time();
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30 delay = delay + current_time;
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31 if delay >= current_time then
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32 t_insert(new_data, {delay, callback});
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33 else
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34 local r = callback();
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35 if r and type(r) == "number" then
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36 return _add_task(r, callback);
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37 end
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38 end
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39 end
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40
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41 ns_addtimer(function()
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42 local current_time = get_time();
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43 if #new_data > 0 then
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44 for _, d in pairs(new_data) do
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45 t_insert(data, d);
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46 end
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47 new_data = {};
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48 end
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49
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50 local next_time = math_huge;
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51 for i, d in pairs(data) do
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52 local t, callback = d[1], d[2];
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53 if t <= current_time then
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54 data[i] = nil;
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55 local r = callback(current_time);
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56 if type(r) == "number" then
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57 _add_task(r, callback);
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58 next_time = math_min(next_time, r);
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59 end
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60 else
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61 next_time = math_min(next_time, t - current_time);
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62 end
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63 end
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64 return next_time;
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65 end);
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66 else
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67 local EVENT_LEAVE = (event.core and event.core.LEAVE) or -1;
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68 function _add_task(delay, callback)
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69 local event_handle;
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70 event_handle = event_base:addevent(nil, 0, function ()
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71 local ret = callback();
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72 if ret then
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73 return 0, ret;
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74 elseif event_handle then
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75 return EVENT_LEAVE;
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76 end
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77 end
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78 , delay);
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79 end
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80 end
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81
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82 add_task = _add_task;
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83
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84 return _M;