lua/lgc.c, branch v5.4.9A mirror of https://github.com/lua/lua
https://git.lua4.win/lua/atom?h=v5.4.92026-07-22T17:42:55+00:00Bug: GC checks stack space before running finalizer2026-07-22T17:42:55+00:00Roberto Iroberto@inf.puc-rio.br2026-07-22T17:42:55+00:00urn:sha1:8511e90b7df5daf139aba290b9c9c1595927e7b3
If some stack does not have a minimum available space, the GC defers
calling a finalizer until the next cycle. That avoids errors while
running a finalizer that the programmer cannot control.
Bug: new metatable in weak table can fool the GC2025-06-16T19:33:02+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2025-06-16T19:33:02+00:00urn:sha1:1b0f943da7dfb25987456a77259edbeea0b94edc
All-weak tables are not being revisited after being visited during
propagation; if it gets a new metatable after that, the new metatable
may not be marked.
Towards release 5.4.72024-04-26T17:55:18+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2024-04-26T17:55:18+00:00urn:sha1:de794a6527058e75b674118b35f39dcbb13e88b1More disciplined use of 'getstr' and 'tsslen'2023-08-17T18:59:28+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2023-08-17T18:59:28+00:00urn:sha1:9b4f39ab14fb2e55345c3d23537d129dac23b091
We may want to add other string variants in the future; this change
documents better where the code may need to handle those variants.
Thread stacks resized in the atomic phase2023-07-13T17:55:46+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2023-07-13T17:55:46+00:00urn:sha1:6b51133a988587f34ee9581d799ea9913581afd3
Although stack resize can be a little expensive, it seems unusual to
have too many threads needing resize during one GC cycle. On the other
hand, the change allows full collections to skip the propagate phase,
going straight from a pause to the atomic phase.
Several functions turned 'static'2023-05-22T17:47:54+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2023-05-22T17:47:54+00:00urn:sha1:9be74ccc214eb6f4d9d0b9496fd973542c7377d9
Several functions that were already being used only inside their
own file have been declared as 'static'.
Reduce calls to 'luaC_step' when GC is stopped2022-12-09T19:35:19+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2022-12-09T19:35:19+00:00urn:sha1:fa2f294dd1269115bf9cf534dd38553e2f606801Threads are created like other objects2022-11-01T20:14:01+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2022-11-01T20:14:01+00:00urn:sha1:9ede317c70ad82279f2e3962eb52904a17bf4b55
Using a version of 'luaC_newobj' that allows offsets (extra space
before the object itself).
Stack indices changed to union's2022-10-29T15:06:37+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2022-10-29T15:06:37+00:00urn:sha1:413a393e6222482f46599e138bebac162610a572
That will allow to change pointers to offsets while reallocating
the stack.
Bug: set correct pause when (re)entering gen. collection.2022-08-23T19:06:23+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2022-08-23T19:06:23+00:00urn:sha1:a1f77a234a053da46b06d5d4be00ffb30d3eb45b