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util/presence.lua @ 11539:3413fea9e6db 0.11
util.startup: Set more aggressive defaults for GC
Testing has demonstrated that the default GC parameters are not
sufficient to prevent runaway memory growth when running under Lua 5.2
and Lua 5.3.
Setting the GC speed to 500 was tested on Lua versions 5.1->5.4 and did
not display unbounded memory growth.
author | Matthew Wild <mwild1@gmail.com> |
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date | Fri, 07 May 2021 16:41:39 +0100 |
parent | 8885:d4f5d47f874d |
rev | line source |
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mod_presence: Move function for selecting "top resources" into a new util.presence
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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 t_insert = table.insert; |
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10 |
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11 local function select_top_resources(user) |
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12 local priority = 0; |
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13 local recipients = {}; |
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14 for _, session in pairs(user.sessions) do -- find resource with greatest priority |
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15 if session.presence then |
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16 local p = session.priority; |
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17 if p > priority then |
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18 priority = p; |
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19 recipients = {session}; |
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20 elseif p == priority then |
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21 t_insert(recipients, session); |
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22 end |
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23 end |
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24 end |
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25 return recipients; |
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26 end |
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27 local function recalc_resource_map(user) |
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28 if user then |
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29 user.top_resources = select_top_resources(user); |
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30 if #user.top_resources == 0 then user.top_resources = nil; end |
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31 end |
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32 end |
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33 |
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34 return { |
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35 select_top_resources = select_top_resources; |
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36 recalc_resource_map = recalc_resource_map; |
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37 } |