prosody
8c6ed6fd2d35
util/timer.lua

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util/timer.lua @ 3140:8c6ed6fd2d35

util.filters: Break processing if a filterer returns nil
author Matthew Wild <mwild1@gmail.com>
date Wed, 02 Jun 2010 13:31:36 +0100
parent 2964:49b5c87d2fa0
child 3683:c2158221e2e6
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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 get_time = os.time;
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15 local t_insert = table.insert;
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16 local t_remove = table.remove;
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17 local ipairs, pairs = ipairs, pairs;
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18 local type = type;
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19
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20 local data = {};
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21 local new_data = {};
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22
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23 module "timer"
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24
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25 local _add_task;
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26 if not event then
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27 function _add_task(delay, func)
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28 local current_time = get_time();
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29 delay = delay + current_time;
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30 if delay >= current_time then
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31 t_insert(new_data, {delay, func});
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32 else
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33 func();
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34 end
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35 end
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36
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37 ns_addtimer(function()
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38 local current_time = get_time();
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39 if #new_data > 0 then
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40 for _, d in pairs(new_data) do
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41 t_insert(data, d);
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42 end
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43 new_data = {};
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44 end
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45
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46 for i, d in pairs(data) do
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47 local t, func = d[1], d[2];
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48 if t <= current_time then
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49 data[i] = nil;
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50 local r = func(current_time);
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51 if type(r) == "number" then _add_task(r, func); end
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52 end
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53 end
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54 end);
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55 else
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56 local EVENT_LEAVE = (event.core and event.core.LEAVE) or -1;
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57 function _add_task(delay, func)
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58 local event_handle;
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59 event_handle = event_base:addevent(nil, 0, function ()
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60 local ret = func();
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61 if ret then
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62 return 0, ret;
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63 elseif event_handle then
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64 return EVENT_LEAVE;
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65 end
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66 end
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67 , delay);
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68 end
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69 end
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70
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71 add_task = _add_task;
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72
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73 return _M;