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| author | Derrick Stolee <dstolee@microsoft.com> | 2018-04-06 21:09:32 +0200 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2018-04-11 03:47:16 +0200 |
| commit | 891435d55da80ca3654b19834481205be6bdfe33 (patch) | |
| tree | fddc1768c14c6567f7be5205bf808d8bae86981a /list-objects.c | |
| parent | Merge branch 'bw/c-plus-plus' into ds/lazy-load-trees (diff) | |
| download | git-891435d55da80ca3654b19834481205be6bdfe33.tar.xz git-891435d55da80ca3654b19834481205be6bdfe33.zip | |
treewide: rename tree to maybe_tree
Using the commit-graph file to walk commit history removes the large
cost of parsing commits during the walk. This exposes a performance
issue: lookup_tree() takes a large portion of the computation time,
even when Git never uses those trees.
In anticipation of lazy-loading these trees, rename the 'tree' member
of struct commit to 'maybe_tree'. This serves two purposes: it hints
at the future role of possibly being NULL even if the commit has a
valid tree, and it allows for unambiguous transformation from simple
member access (i.e. commit->maybe_tree) to method access.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'list-objects.c')
| -rw-r--r-- | list-objects.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/list-objects.c b/list-objects.c index 168bef688a..bfd09f545c 100644 --- a/list-objects.c +++ b/list-objects.c @@ -195,7 +195,7 @@ static void mark_edge_parents_uninteresting(struct commit *commit, struct commit *parent = parents->item; if (!(parent->object.flags & UNINTERESTING)) continue; - mark_tree_uninteresting(parent->tree); + mark_tree_uninteresting(parent->maybe_tree); if (revs->edge_hint && !(parent->object.flags & SHOWN)) { parent->object.flags |= SHOWN; show_edge(parent); @@ -212,7 +212,7 @@ void mark_edges_uninteresting(struct rev_info *revs, show_edge_fn show_edge) struct commit *commit = list->item; if (commit->object.flags & UNINTERESTING) { - mark_tree_uninteresting(commit->tree); + mark_tree_uninteresting(commit->maybe_tree); if (revs->edge_hint_aggressive && !(commit->object.flags & SHOWN)) { commit->object.flags |= SHOWN; show_edge(commit); @@ -227,7 +227,7 @@ void mark_edges_uninteresting(struct rev_info *revs, show_edge_fn show_edge) struct commit *commit = (struct commit *)obj; if (obj->type != OBJ_COMMIT || !(obj->flags & UNINTERESTING)) continue; - mark_tree_uninteresting(commit->tree); + mark_tree_uninteresting(commit->maybe_tree); if (!(obj->flags & SHOWN)) { obj->flags |= SHOWN; show_edge(commit); @@ -300,8 +300,8 @@ static void do_traverse(struct rev_info *revs, * an uninteresting boundary commit may not have its tree * parsed yet, but we are not going to show them anyway */ - if (commit->tree) - add_pending_tree(revs, commit->tree); + if (commit->maybe_tree) + add_pending_tree(revs, commit->maybe_tree); show_commit(commit, show_data); if (revs->tree_blobs_in_commit_order) |