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midx: switch to using the_hash_algo

Instead of hard-coding the hash size, use the_hash_algo to look up the
hash size at runtime.  Remove the #define constant which was used to
hold the hash length, since writing the expression with the_hash_algo
provide enough documentary value on its own.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
tags/v2.24.0-rc0
brian m. carlson Junio C Hamano 3 months ago
parent
commit
aaa95dfa05
1 changed files with 5 additions and 6 deletions
  1. +5
    -6
      midx.c

+ 5
- 6
midx.c View File

@@ -19,8 +19,7 @@
#define MIDX_BYTE_NUM_PACKS 8
#define MIDX_HASH_VERSION 1
#define MIDX_HEADER_SIZE 12
#define MIDX_HASH_LEN 20
#define MIDX_MIN_SIZE (MIDX_HEADER_SIZE + MIDX_HASH_LEN)
#define MIDX_MIN_SIZE (MIDX_HEADER_SIZE + the_hash_algo->rawsz)

#define MIDX_MAX_CHUNKS 5
#define MIDX_CHUNK_ALIGNMENT 4
@@ -93,7 +92,7 @@ struct multi_pack_index *load_multi_pack_index(const char *object_dir, int local
hash_version = m->data[MIDX_BYTE_HASH_VERSION];
if (hash_version != MIDX_HASH_VERSION)
die(_("hash version %u does not match"), hash_version);
m->hash_len = MIDX_HASH_LEN;
m->hash_len = the_hash_algo->rawsz;

m->num_chunks = m->data[MIDX_BYTE_NUM_CHUNKS];

@@ -234,7 +233,7 @@ int prepare_midx_pack(struct repository *r, struct multi_pack_index *m, uint32_t
int bsearch_midx(const struct object_id *oid, struct multi_pack_index *m, uint32_t *result)
{
return bsearch_hash(oid->hash, m->chunk_oid_fanout, m->chunk_oid_lookup,
MIDX_HASH_LEN, result);
the_hash_algo->rawsz, result);
}

struct object_id *nth_midxed_object_oid(struct object_id *oid,
@@ -928,7 +927,7 @@ static int write_midx_internal(const char *object_dir, struct multi_pack_index *

cur_chunk++;
chunk_ids[cur_chunk] = MIDX_CHUNKID_OBJECTOFFSETS;
chunk_offsets[cur_chunk] = chunk_offsets[cur_chunk - 1] + nr_entries * MIDX_HASH_LEN;
chunk_offsets[cur_chunk] = chunk_offsets[cur_chunk - 1] + nr_entries * the_hash_algo->rawsz;

cur_chunk++;
chunk_offsets[cur_chunk] = chunk_offsets[cur_chunk - 1] + nr_entries * MIDX_CHUNK_OFFSET_WIDTH;
@@ -976,7 +975,7 @@ static int write_midx_internal(const char *object_dir, struct multi_pack_index *
break;

case MIDX_CHUNKID_OIDLOOKUP:
written += write_midx_oid_lookup(f, MIDX_HASH_LEN, entries, nr_entries);
written += write_midx_oid_lookup(f, the_hash_algo->rawsz, entries, nr_entries);
break;

case MIDX_CHUNKID_OBJECTOFFSETS:


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