annotate plugins/mod_muc_unique.lua @ 12201:e5e0ab93d7f4 0.11

util.xml: Break reference to help the GC (fix #1711) LuaExpat uses a registry reference to track handlers, which makes it so that an upvalue like this creates a reference loop that keeps the parser and its handlers from being garbage collected. The same issue has affected util.xmppstream in the past. Code for checking: local xml_parse = require"util.xml".parse; for i = 1, 10000 do xml_parse("<root/>") end collectgarbage(); collectgarbage(); print(collectgarbage("count"), "KiB"); A future release of LuaExpat may fix the underlying issue there.
author Kim Alvefur <zash@zash.se>
date Thu, 20 Jan 2022 09:57:20 +0100
parents 7c3e16fdaf1d
children 74b9e05af71e
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3a1c39b31497 plugins/muc/mod_muc: Move Xep-0307 MUC unique to seperate file
daurnimator <quae@daurnimator.com>
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1 -- XEP-0307: Unique Room Names for Multi-User Chat
6409
5fd6c739e9bf plugins/mod_muc_unique: Fix undefined global access (thanks Lance)
Waqas Hussain <waqas20@gmail.com>
parents: 6091
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2 local st = require "util.stanza";
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7c3e16fdaf1d mod_muc_unique: Use util.id for more compact identifiers
Kim Alvefur <zash@zash.se>
parents: 6409
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3 local unique_name = require "util.id".medium;
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3a1c39b31497 plugins/muc/mod_muc: Move Xep-0307 MUC unique to seperate file
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parents:
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4 module:add_feature "http://jabber.org/protocol/muc#unique"
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5fd6c739e9bf plugins/mod_muc_unique: Fix undefined global access (thanks Lance)
Waqas Hussain <waqas20@gmail.com>
parents: 6091
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5 module:hook("iq-get/host/http://jabber.org/protocol/muc#unique:unique", function(event)
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3a1c39b31497 plugins/muc/mod_muc: Move Xep-0307 MUC unique to seperate file
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6 local origin, stanza = event.origin, event.stanza;
3a1c39b31497 plugins/muc/mod_muc: Move Xep-0307 MUC unique to seperate file
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parents:
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7 origin.send(st.reply(stanza)
3a1c39b31497 plugins/muc/mod_muc: Move Xep-0307 MUC unique to seperate file
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8 :tag("unique", {xmlns = "http://jabber.org/protocol/muc#unique"})
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7c3e16fdaf1d mod_muc_unique: Use util.id for more compact identifiers
Kim Alvefur <zash@zash.se>
parents: 6409
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9 :text(unique_name():lower())
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3a1c39b31497 plugins/muc/mod_muc: Move Xep-0307 MUC unique to seperate file
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10 );
3a1c39b31497 plugins/muc/mod_muc: Move Xep-0307 MUC unique to seperate file
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11 return true;
3a1c39b31497 plugins/muc/mod_muc: Move Xep-0307 MUC unique to seperate file
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12 end,-1);