1 files changed, 35 insertions, 27 deletions

diff --git a/pack-bitmap.c b/pack-bitmap.c
index a1f3c0d..2b3ff23 100644
--- a/pack-bitmap.c
+++ b/pack-bitmap.c
@@ -60,7 +60,7 @@ static struct bitmap_index {
 	struct ewah_bitmap *blobs;
 	struct ewah_bitmap *tags;
 
-	/* Map from SHA1 -> `stored_bitmap` for all the bitmapped comits */
+	/* Map from SHA1 -> `stored_bitmap` for all the bitmapped commits */
 	khash_sha1 *bitmaps;
 
 	/* Number of bitmapped commits */
@@ -197,15 +197,24 @@ static struct stored_bitmap *store_bitmap(struct bitmap_index *index,
 	return stored;
 }
 
-static int load_bitmap_entries_v1(struct bitmap_index *index)
+static inline uint32_t read_be32(const unsigned char *buffer, size_t *pos)
 {
-	static const size_t MAX_XOR_OFFSET = 160;
+	uint32_t result = get_be32(buffer + *pos);
+	(*pos) += sizeof(result);
+	return result;
+}
 
-	uint32_t i;
-	struct stored_bitmap **recent_bitmaps;
-	struct bitmap_disk_entry *entry;
+static inline uint8_t read_u8(const unsigned char *buffer, size_t *pos)
+{
+	return buffer[(*pos)++];
+}
 
-	recent_bitmaps = xcalloc(MAX_XOR_OFFSET, sizeof(struct stored_bitmap));
+#define MAX_XOR_OFFSET 160
+
+static int load_bitmap_entries_v1(struct bitmap_index *index)
+{
+	uint32_t i;
+	struct stored_bitmap *recent_bitmaps[MAX_XOR_OFFSET] = { NULL };
 
 	for (i = 0; i < index->entry_count; ++i) {
 		int xor_offset, flags;
@@ -214,15 +223,12 @@ static int load_bitmap_entries_v1(struct bitmap_index *index)
 		uint32_t commit_idx_pos;
 		const unsigned char *sha1;
 
-		entry = (struct bitmap_disk_entry *)(index->map + index->map_pos);
-		index->map_pos += sizeof(struct bitmap_disk_entry);
+		commit_idx_pos = read_be32(index->map, &index->map_pos);
+		xor_offset = read_u8(index->map, &index->map_pos);
+		flags = read_u8(index->map, &index->map_pos);
 
-		commit_idx_pos = ntohl(entry->object_pos);
 		sha1 = nth_packed_object_sha1(index->pack, commit_idx_pos);
 
-		xor_offset = (int)entry->xor_offset;
-		flags = (int)entry->flags;
-
 		bitmap = read_bitmap_1(index);
 		if (!bitmap)
 			return -1;
@@ -244,6 +250,20 @@ static int load_bitmap_entries_v1(struct bitmap_index *index)
 	return 0;
 }
 
+static char *pack_bitmap_filename(struct packed_git *p)
+{
+	char *idx_name;
+	int len;
+
+	len = strlen(p->pack_name) - strlen(".pack");
+	idx_name = xmalloc(len + strlen(".bitmap") + 1);
+
+	memcpy(idx_name, p->pack_name, len);
+	memcpy(idx_name + len, ".bitmap", strlen(".bitmap") + 1);
+
+	return idx_name;
+}
+
 static int open_pack_bitmap_1(struct packed_git *packfile)
 {
 	int fd;
@@ -314,20 +334,6 @@ failed:
 	return -1;
 }
 
-char *pack_bitmap_filename(struct packed_git *p)
-{
-	char *idx_name;
-	int len;
-
-	len = strlen(p->pack_name) - strlen(".pack");
-	idx_name = xmalloc(len + strlen(".bitmap") + 1);
-
-	memcpy(idx_name, p->pack_name, len);
-	memcpy(idx_name + len, ".bitmap", strlen(".bitmap") + 1);
-
-	return idx_name;
-}
-
 static int open_pack_bitmap(void)
 {
 	struct packed_git *p;
@@ -978,6 +984,8 @@ void test_bitmap_walk(struct rev_info *revs)
 		fprintf(stderr, "OK!\n");
 	else
 		fprintf(stderr, "Mismatch!\n");
+
+	bitmap_free(result);
 }
 
 static int rebuild_bitmap(uint32_t *reposition,