Software /
code /
prosody
File
spec/util_format_spec.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 |
parent | 8620:84b73949fc30 |
child | 9656:3da6cc927ee6 |
line wrap: on
line source
local format = require "util.format".format; describe("util.format", function() describe("#format()", function() it("should work", function() assert.equal("hello", format("%s", "hello")); assert.equal("<nil>", format("%s")); assert.equal(" [<nil>]", format("", nil)); assert.equal("true", format("%s", true)); assert.equal("[true]", format("%d", true)); assert.equal("% [true]", format("%%", true)); end); end); end);