A mirror of https://github.com/lua/lua https://git.lua4.win/lua/atom?h=v5.4.9 2020-08-13T17:31:27+00:00 2020-08-13T17:31:27+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2020-08-13T17:31:27+00:00 urn:sha1:f7ce7e5faae69fcab0126d8bfd34b685f1dcb019 This commit fixes a bug introduced in commit 9cf3299fa. TOUCHED2 objects are always black while the mutator runs, but they can become temporarily gray inside a minor collection (e.g., if the object is a weak table). 2020-07-29T20:05:47+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2020-07-29T20:05:47+00:00 urn:sha1:0dc5deca1c0182a4a3db2fcfd7bc721f27fb352b OLD1 objects can be potentially anywhere in the 'allgc' list (up to 'reallyold'), but frequently they are all after 'old1' (natural evolution of survivals) or do not exist at all (when all objects die young). So, instead of 'markold' starts looking for them always from the start of 'allgc', the collector keeps an extra pointer, 'firstold1', that points to the first OLD1 object in the 'allgc' list, or is NULL if there are no OLD1 objects in that list. 2020-07-27T13:26:20+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2020-07-27T13:26:20+00:00 urn:sha1:a6da1472c0c5e05ff249325f979531ad51533110 Barriers cannot be active during sweep, even in generational mode. (Although gen. mode is not incremental, it can hit a barrier when deleting a thread and closing its upvalues.) The colors of objects are being changed during sweep and, therefore, cannot be trusted. 2020-07-13T16:37:01+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2020-07-13T16:37:01+00:00 urn:sha1:0f1cd0eba99ea6d383e75b9ae488d00ad541c210 2018-07-25T18:31:04+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2018-07-25T18:31:04+00:00 urn:sha1:aa4c5cf190f77ab2730af5e21cfd2b830ff329df From the point of view of 'git', all names are relative to the root directory of the project. So, file names in '$Id:' also should be relative to that directory: the proper name for test file 'all.lua' is 'testes/all.lua'. 2018-07-13T18:43:02+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2018-07-13T18:43:02+00:00 urn:sha1:2e297d6ab37c1bb255b6984b91dd92d9080e02c9 During generational collection, a userdatum must become gray and go to a gray list after being traversed (like tables), so that 'correctgraylist' can handle it to its next stage. This commit also added minimum tests for the generational collector, including one that would detect this bug.