diff options
Diffstat (limited to 'pack-revindex.c')
-rw-r--r-- | pack-revindex.c | 43 |
1 files changed, 22 insertions, 21 deletions
diff --git a/pack-revindex.c b/pack-revindex.c index b4d2b35bb3..5bd7c61980 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; @@ -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; } |