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Diffstat (limited to 'pack-revindex.c')
-rw-r--r--pack-revindex.c45
1 files changed, 23 insertions, 22 deletions
diff --git a/pack-revindex.c b/pack-revindex.c
index b4d2b35bb3..5c8376e978 100644
--- a/pack-revindex.c
+++ b/pack-revindex.c
@@ -16,11 +16,6 @@
* get the object sha1 from the main index.
*/
-struct pack_revindex {
- struct packed_git *p;
- struct revindex_entry *revindex;
-};
-
static struct pack_revindex *pack_revindex;
static int pack_revindex_hashsz;
@@ -50,7 +45,7 @@ static void init_pack_revindex(void)
if (!num)
return;
pack_revindex_hashsz = num * 11;
- pack_revindex = xcalloc(sizeof(*pack_revindex), pack_revindex_hashsz);
+ pack_revindex = xcalloc(pack_revindex_hashsz, sizeof(*pack_revindex));
for (p = packed_git; p; p = p->next) {
num = pack_revindex_ix(p);
num = - 1 - num;
@@ -201,15 +196,14 @@ static void create_pack_revindex(struct pack_revindex *rix)
sort_revindex(rix->revindex, num_ent, p->pack_size);
}
-struct revindex_entry *find_pack_revindex(struct packed_git *p, off_t ofs)
+struct pack_revindex *revindex_for_pack(struct packed_git *p)
{
int num;
- unsigned lo, hi;
struct pack_revindex *rix;
- struct revindex_entry *revindex;
if (!pack_revindex_hashsz)
init_pack_revindex();
+
num = pack_revindex_ix(p);
if (num < 0)
die("internal error: pack revindex fubar");
@@ -217,30 +211,37 @@ struct revindex_entry *find_pack_revindex(struct packed_git *p, off_t ofs)
rix = &pack_revindex[num];
if (!rix->revindex)
create_pack_revindex(rix);
- revindex = rix->revindex;
- lo = 0;
- hi = p->num_objects + 1;
+ return rix;
+}
+
+int find_revindex_position(struct pack_revindex *pridx, off_t ofs)
+{
+ int lo = 0;
+ int hi = pridx->p->num_objects + 1;
+ struct revindex_entry *revindex = pridx->revindex;
+
do {
unsigned mi = lo + (hi - lo) / 2;
if (revindex[mi].offset == ofs) {
- return revindex + mi;
+ return mi;
} else if (ofs < revindex[mi].offset)
hi = mi;
else
lo = mi + 1;
} while (lo < hi);
+
error("bad offset for revindex");
- return NULL;
+ return -1;
}
-void discard_revindex(void)
+struct revindex_entry *find_pack_revindex(struct packed_git *p, off_t ofs)
{
- if (pack_revindex_hashsz) {
- int i;
- for (i = 0; i < pack_revindex_hashsz; i++)
- free(pack_revindex[i].revindex);
- free(pack_revindex);
- pack_revindex_hashsz = 0;
- }
+ struct pack_revindex *pridx = revindex_for_pack(p);
+ int pos = find_revindex_position(pridx, ofs);
+
+ if (pos < 0)
+ return NULL;
+
+ return pridx->revindex + pos;
}