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| author | Nguyễn Thái Ngọc Duy <pclouds@gmail.com> | 2017-05-05 14:57:12 (GMT) |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2017-05-08 01:50:20 (GMT) |
| commit | f9d7abec2ad2f9eb3d8873169cc28c34273df082 (patch) | |
| tree | 8ac02895a20ac3928aa40fbc1d5e2c58ba47bb8e /split-index.h | |
| parent | 4fa66c85f11bc5a541462ca5ae3246aa0ce02e74 (diff) | |
| download | git-f9d7abec2ad2f9eb3d8873169cc28c34273df082.zip git-f9d7abec2ad2f9eb3d8873169cc28c34273df082.tar.gz git-f9d7abec2ad2f9eb3d8873169cc28c34273df082.tar.bz2 | |
split-index: add and use unshare_split_index()
When split-index is being used, we have two cache_entry arrays in
index_state->cache[] and index_state->split_index->base->cache[].
index_state->cache[] may share the same entries with base->cache[] so
we can quickly determine what entries are shared. This makes memory
management tricky, we can't free base->cache[] until we know
index_state->cache[] does not point to any of those entries.
unshare_split_index() is added for this purpose, to find shared
entries and either duplicate them in index_state->cache[], or discard
them. Either way it should be safe to free base->cache[] after
unshare_split_index().
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'split-index.h')
| -rw-r--r-- | split-index.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/split-index.h b/split-index.h index df91c1b..65c0f09 100644 --- a/split-index.h +++ b/split-index.h @@ -33,5 +33,6 @@ void finish_writing_split_index(struct index_state *istate); void discard_split_index(struct index_state *istate); void add_split_index(struct index_state *istate); void remove_split_index(struct index_state *istate); +void unshare_split_index(struct index_state *istate, int discard); #endif |