prosody
e5e0ab93d7f4
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.hgtags @ 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 |
| parent | 12182:5e21cf21d398 |
| child | 12210:458c5f8d5d3e |
| child | 12389:b776e234bb85 |
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