prosody
8473a516004f
util/timer.lua

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util/timer.lua @ 12905:8473a516004f

core.usermanager: Add methods for enabling and disabling users Calling into the auth module, where available.
author Kim Alvefur <zash@zash.se>
date Thu, 23 Feb 2023 16:24:41 +0100
parent 11264:2cdcf55c6dd5
child 12975:d10957394a3c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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Matthew Wild <mwild1@gmail.com>
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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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8
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9 local indexedbheap = require "util.indexedbheap";
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10 local log = require "util.logger".init("timer");
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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)
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11 local server = require "net.server";
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12 local get_time = require "util.time".now
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13 local type = type;
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14 local debug_traceback = debug.traceback;
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15 local tostring = tostring;
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16 local xpcall = require "util.xpcall".xpcall;
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17 local math_max = math.max;
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18 local pairs = pairs;
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19
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20 if server.timer then
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21 -- The selected net.server implements this API, so defer to that
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22 return server.timer;
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23 end
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24
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25 local _ENV = nil;
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26 -- luacheck: std none
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27
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28 local _add_task = server.add_task;
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29
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30 local _server_timer;
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31 local _active_timers = 0;
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32 local h = indexedbheap.create();
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33 local params = {};
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34 local next_time = nil;
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35 local function _traceback_handler(err) log("error", "Traceback[timer]: %s", debug_traceback(tostring(err), 2)); end
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36 local function _on_timer(now)
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37 local peek;
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38 local readd;
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39 while true do
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40 peek = h:peek();
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41 if peek == nil or peek > now then break; end
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42 local _, callback, id = h:pop();
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43 local param = params[id];
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44 params[id] = nil;
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45 --item(now, id, _param);
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46 local success, err = xpcall(callback, _traceback_handler, now, id, param);
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47 if success and type(err) == "number" then
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48 if readd then
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49 readd[id] = { callback, err + now };
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50 else
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51 readd = { [id] = { callback, err + now } };
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52 end
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53 params[id] = param;
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54 end
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55 end
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56
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57 if readd then
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58 for id,timer in pairs(readd) do
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59 h:insert(timer[1], timer[2], id);
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60 end
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61 peek = h:peek();
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62 end
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63
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64 if peek ~= nil and _active_timers > 1 and peek == next_time then
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65 -- Another instance of _on_timer already set next_time to the same value,
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66 -- so it should be safe to not renew this timer event
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67 peek = nil;
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68 else
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69 next_time = peek;
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70 end
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71
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72 if peek then
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73 -- peek is the time of the next event
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74 return peek - now;
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75 end
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76 _active_timers = _active_timers - 1;
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77 end
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78 local function add_task(delay, callback, param)
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79 local current_time = get_time();
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80 local event_time = current_time + delay;
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81
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82 local id = h:insert(callback, event_time);
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83 params[id] = param;
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84 if next_time == nil or event_time < next_time then
615a0774e4cc util.timer: Updated to use util.indexedbheap to provide a more complete API. Timers can now be stopped or rescheduled. Callbacks are now pcall'd. Adding/removing timers from within timer callbacks works better. Optional parameter can be passed when creating timer which gets passed to callback, eliminating the need for closures in various timer uses. Timers are now much more lightweight.
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85 next_time = event_time;
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86 if _server_timer then
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87 _server_timer:close();
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88 _server_timer = nil;
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89 else
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90 _active_timers = _active_timers + 1;
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91 end
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92 _server_timer = _add_task(next_time - current_time, _on_timer);
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93 end
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94 return id;
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95 end
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96 local function stop(id)
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97 params[id] = nil;
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98 local result, item, result_sync = h:remove(id);
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99 local peek = h:peek();
17e275e8bd79 util.timer: Reschedule timers from stop() if the next pending event is stopped
Kim Alvefur <zash@zash.se>
parents: 6932
diff changeset
100 if peek ~= next_time and _server_timer then
17e275e8bd79 util.timer: Reschedule timers from stop() if the next pending event is stopped
Kim Alvefur <zash@zash.se>
parents: 6932
diff changeset
101 next_time = peek;
17e275e8bd79 util.timer: Reschedule timers from stop() if the next pending event is stopped
Kim Alvefur <zash@zash.se>
parents: 6932
diff changeset
102 _server_timer:close();
17e275e8bd79 util.timer: Reschedule timers from stop() if the next pending event is stopped
Kim Alvefur <zash@zash.se>
parents: 6932
diff changeset
103 if next_time ~= nil then
8762
2f8523bf7ff2 util.timer: Ensure we don't try to schedule negative timeouts (which rightly upset libevent). Fixes #1135
Matthew Wild <mwild1@gmail.com>
parents: 8685
diff changeset
104 _server_timer = _add_task(math_max(next_time - get_time(), 0), _on_timer);
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
105 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
106 end
7015
17e275e8bd79 util.timer: Reschedule timers from stop() if the next pending event is stopped
Kim Alvefur <zash@zash.se>
parents: 6932
diff changeset
107 return result, item, result_sync;
6836
9f45f0fe5aef util.timer: Fix indentation
Kim Alvefur <zash@zash.se>
parents: 6791
diff changeset
108 end
6791
e813e8cf6046 Merge 0.10->trunk
Kim Alvefur <zash@zash.se>
parents: 6481 6777
diff changeset
109 local function reschedule(id, delay)
5877
615a0774e4cc util.timer: Updated to use util.indexedbheap to provide a more complete API. Timers can now be stopped or rescheduled. Callbacks are now pcall'd. Adding/removing timers from within timer callbacks works better. Optional parameter can be passed when creating timer which gets passed to callback, eliminating the need for closures in various timer uses. Timers are now much more lightweight.
Waqas Hussain <waqas20@gmail.com>
parents: 5776
diff changeset
110 local current_time = get_time();
615a0774e4cc util.timer: Updated to use util.indexedbheap to provide a more complete API. Timers can now be stopped or rescheduled. Callbacks are now pcall'd. Adding/removing timers from within timer callbacks works better. Optional parameter can be passed when creating timer which gets passed to callback, eliminating the need for closures in various timer uses. Timers are now much more lightweight.
Waqas Hussain <waqas20@gmail.com>
parents: 5776
diff changeset
111 local event_time = current_time + delay;
615a0774e4cc util.timer: Updated to use util.indexedbheap to provide a more complete API. Timers can now be stopped or rescheduled. Callbacks are now pcall'd. Adding/removing timers from within timer callbacks works better. Optional parameter can be passed when creating timer which gets passed to callback, eliminating the need for closures in various timer uses. Timers are now much more lightweight.
Waqas Hussain <waqas20@gmail.com>
parents: 5776
diff changeset
112 h:reprioritize(id, delay);
615a0774e4cc util.timer: Updated to use util.indexedbheap to provide a more complete API. Timers can now be stopped or rescheduled. Callbacks are now pcall'd. Adding/removing timers from within timer callbacks works better. Optional parameter can be passed when creating timer which gets passed to callback, eliminating the need for closures in various timer uses. Timers are now much more lightweight.
Waqas Hussain <waqas20@gmail.com>
parents: 5776
diff changeset
113 if next_time == nil or event_time < next_time then
615a0774e4cc util.timer: Updated to use util.indexedbheap to provide a more complete API. Timers can now be stopped or rescheduled. Callbacks are now pcall'd. Adding/removing timers from within timer callbacks works better. Optional parameter can be passed when creating timer which gets passed to callback, eliminating the need for closures in various timer uses. Timers are now much more lightweight.
Waqas Hussain <waqas20@gmail.com>
parents: 5776
diff changeset
114 next_time = event_time;
5878
2b1c0c0a2ea6 util.timer: Fix variable name typo.
Waqas Hussain <waqas20@gmail.com>
parents: 5877
diff changeset
115 _add_task(next_time - current_time, _on_timer);
6836
9f45f0fe5aef util.timer: Fix indentation
Kim Alvefur <zash@zash.se>
parents: 6791
diff changeset
116 end
5877
615a0774e4cc util.timer: Updated to use util.indexedbheap to provide a more complete API. Timers can now be stopped or rescheduled. Callbacks are now pcall'd. Adding/removing timers from within timer callbacks works better. Optional parameter can be passed when creating timer which gets passed to callback, eliminating the need for closures in various timer uses. Timers are now much more lightweight.
Waqas Hussain <waqas20@gmail.com>
parents: 5776
diff changeset
117 return id;
832
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
118 end
282ae70db19f Added util/timer.lua - a timer API
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
119
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
120 return {
6791
e813e8cf6046 Merge 0.10->trunk
Kim Alvefur <zash@zash.se>
parents: 6481 6777
diff changeset
121 add_task = add_task;
e813e8cf6046 Merge 0.10->trunk
Kim Alvefur <zash@zash.se>
parents: 6481 6777
diff changeset
122 stop = stop;
e813e8cf6046 Merge 0.10->trunk
Kim Alvefur <zash@zash.se>
parents: 6481 6777
diff changeset
123 reschedule = reschedule;
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
124 };
6791
e813e8cf6046 Merge 0.10->trunk
Kim Alvefur <zash@zash.se>
parents: 6481 6777
diff changeset
125