Mercurial > prosody-hg
annotate plugins/mod_csi.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 | 91856829f18b |
| children | 35bc8d495569 |
| rev | line source |
|---|---|
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mod_csi: Imported from prosody-modules 66b3085ecc49
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parents:
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1 local st = require "util.stanza"; |
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2 local xmlns_csi = "urn:xmpp:csi:0"; |
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3 local csi_feature = st.stanza("csi", { xmlns = xmlns_csi }); |
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4 |
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5 module:hook("stream-features", function (event) |
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6 if event.origin.username then |
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7 event.features:add_child(csi_feature); |
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8 end |
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9 end); |
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10 |
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11 function refire_event(name) |
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12 return function (event) |
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13 if event.origin.username then |
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mod_csi: Fix copypaste mistake [luacheck]
Kim Alvefur <zash@zash.se>
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14 event.origin.state = event.stanza.name; |
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15 module:fire_event(name, event); |
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16 return true; |
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17 end |
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18 end; |
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19 end |
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20 |
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21 module:hook("stanza/"..xmlns_csi..":active", refire_event("csi-client-active")); |
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22 module:hook("stanza/"..xmlns_csi..":inactive", refire_event("csi-client-inactive")); |
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23 |