Now that all 'find_revindex_position()' callers have been removed (and
converted to the more descriptive 'offset_to_pack_pos()'), it is almost
safe to get rid of 'find_revindex_position()' entirely. Almost, except
for the fact that 'offset_to_pack_pos()' calls
'find_revindex_position()'.
Inline 'find_revindex_position()' into 'offset_to_pack_pos()', and
then remove 'find_revindex_position()' entirely.
This is a straightforward refactoring with one minor snag.
'offset_to_pack_pos()' used to load the index before calling
'find_revindex_position()'. That means that by the time
'find_revindex_position()' starts executing, 'p->num_objects' can be
safely read. After inlining, be careful to not read 'p->num_objects'
until _after_ 'load_pack_revindex()' (which loads the index as a
side-effect) has been called.
Signed-off-by: Taylor Blau <me@xxxxxxxxxxxx>
---
pack-revindex.c | 29 +++++++++++------------------
pack-revindex.h | 1 -
2 files changed, 11 insertions(+), 19 deletions(-)
diff --git a/pack-revindex.c b/pack-revindex.c
index 4e42238906..9392c4be73 100644
--- a/pack-revindex.c
+++ b/pack-revindex.c
@@ -169,16 +169,23 @@ int load_pack_revindex(struct packed_git *p)
return 0;
}
-int find_revindex_position(struct packed_git *p, off_t ofs)
+int offset_to_pack_pos(struct packed_git *p, off_t ofs, uint32_t *pos)
{
int lo = 0;
- int hi = p->num_objects + 1;
- const struct revindex_entry *revindex = p->revindex;
+ int hi;
+ const struct revindex_entry *revindex;
+
+ if (load_pack_revindex(p) < 0)
+ return -1;
+
+ hi = p->num_objects + 1;
+ revindex = p->revindex;
do {
const unsigned mi = lo + (hi - lo) / 2;
if (revindex[mi].offset == ofs) {
- return mi;
+ *pos = mi;
+ return 0;
} else if (ofs < revindex[mi].offset)
hi = mi;
else
@@ -189,20 +196,6 @@ int find_revindex_position(struct packed_git *p, off_t ofs)
return -1;
}
-int offset_to_pack_pos(struct packed_git *p, off_t ofs, uint32_t *pos)
-{
- int ret;
-
- if (load_pack_revindex(p) < 0)
- return -1;
-
- ret = find_revindex_position(p, ofs);
- if (ret < 0)
- return -1;
- *pos = ret;
- return 0;
-}
-
uint32_t pack_pos_to_index(struct packed_git *p, uint32_t pos)
{
if (!p->revindex)
diff --git a/pack-revindex.h b/pack-revindex.h
index 07c1a7a3c8..b5dd114fd5 100644
--- a/pack-revindex.h
+++ b/pack-revindex.h
@@ -9,7 +9,6 @@ struct revindex_entry {
};
int load_pack_revindex(struct packed_git *p);
-int find_revindex_position(struct packed_git *p, off_t ofs);
int offset_to_pack_pos(struct packed_git *p, off_t ofs, uint32_t *pos);
uint32_t pack_pos_to_index(struct packed_git *p, uint32_t pos);
--
2.30.0.138.g6d7191ea01
