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| author | Ævar Arnfjörð Bjarmason <avarab@gmail.com> | 2022-04-14 07:56:39 +0200 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2022-04-13 23:56:10 -0700 |
| commit | ae1b383dfa945d98ec3cedd744619c2028d6edf7 (patch) | |
| tree | a395531516ec70ab980aae88010c8b8425bd1222 /revision.c | |
| parent | 9d5a7df3322551422f257c686f6621a22e0fa731 (diff) | |
| download | git-ae1b383dfa945d98ec3cedd744619c2028d6edf7.tar.gz | |
revisions API: have release_revisions() release "topo_walk_info"
Refactor the existing reset_topo_walk() into a thin wrapper for a
release_revisions_topo_walk_info() + resetting the member to "NULL",
and call release_revisions_topo_walk_info() from release_revisions().
This fixes memory leaks that have been with us ever since
"topo_walk_info" was added to revision.[ch] in
f0d9cc4196a (revision.c: begin refactoring --topo-order logic,
2018-11-01).
Due to various other leaks this makes no tests pass in their entirety,
but e.g. before this running this on git.git:
./git -P log --pretty=tformat:"%P %H | %s" --parents --full-history --topo-order -3 -- README.md
Would report under SANITIZE=leak:
SUMMARY: LeakSanitizer: 531064 byte(s) leaked in 6 allocation(s).
Now we'll free all of that memory.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'revision.c')
| -rw-r--r-- | revision.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/revision.c b/revision.c index 307f41e889..0107ac1077 100644 --- a/revision.c +++ b/revision.c @@ -2943,6 +2943,8 @@ static void release_revisions_mailmap(struct string_list *mailmap) free(mailmap); } +static void release_revisions_topo_walk_info(struct topo_walk_info *info); + void release_revisions(struct rev_info *revs) { free_commit_list(revs->commits); @@ -2956,6 +2958,7 @@ void release_revisions(struct rev_info *revs) free_grep_patterns(&revs->grep_filter); diff_free(&revs->pruning); reflog_walk_info_release(revs->reflog_info); + release_revisions_topo_walk_info(revs->topo_walk_info); } static void add_child(struct rev_info *revs, struct commit *parent, struct commit *child) @@ -3468,17 +3471,22 @@ static void compute_indegrees_to_depth(struct rev_info *revs, indegree_walk_step(revs); } -static void reset_topo_walk(struct rev_info *revs) +static void release_revisions_topo_walk_info(struct topo_walk_info *info) { - struct topo_walk_info *info = revs->topo_walk_info; - + if (!info) + return; clear_prio_queue(&info->explore_queue); clear_prio_queue(&info->indegree_queue); clear_prio_queue(&info->topo_queue); clear_indegree_slab(&info->indegree); clear_author_date_slab(&info->author_date); + free(info); +} - FREE_AND_NULL(revs->topo_walk_info); +static void reset_topo_walk(struct rev_info *revs) +{ + release_revisions_topo_walk_info(revs->topo_walk_info); + revs->topo_walk_info = NULL; } static void init_topo_walk(struct rev_info *revs) |