[PATCH] clean up pack index handling a bit

Especially with the new index format to come, it is more appropriate
to encapsulate more into check_packed_git_idx() and assume less of the
index format in struct packed_git.

To that effect, the index_base is renamed to index_data with void * type
so it is not used directly but other pointers initialized with it. This
allows for a couple pointer cast removal, as well as providing a better
generic name to grep for when adding support for new index versions or
formats.

And index_data is declared const too while at it.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Nicolas Pitre
2007-03-16 16:42:50 -04:00
committed by Junio C Hamano
parent ac527b0b7c
commit 4287307833
6 changed files with 90 additions and 87 deletions

View File

@ -166,11 +166,12 @@ static void prepare_pack_revindex(struct pack_revindex *rix)
struct packed_git *p = rix->p;
int num_ent = num_packed_objects(p);
int i;
void *index = p->index_base + 256;
const char *index = p->index_data;
index += 4 * 256;
rix->revindex = xmalloc(sizeof(*rix->revindex) * (num_ent + 1));
for (i = 0; i < num_ent; i++) {
unsigned int hl = *((unsigned int *)((char *) index + 24*i));
uint32_t hl = *((uint32_t *)(index + 24 * i));
rix->revindex[i].offset = ntohl(hl);
rix->revindex[i].nr = i;
}
@ -217,11 +218,11 @@ static off_t find_packed_object_size(struct packed_git *p, off_t ofs)
return entry[1].offset - ofs;
}
static unsigned char *find_packed_object_name(struct packed_git *p,
off_t ofs)
static const unsigned char *find_packed_object_name(struct packed_git *p,
off_t ofs)
{
struct revindex_entry *entry = find_packed_object(p, ofs);
return (unsigned char *)(p->index_base + 256) + 24 * entry->nr + 4;
return ((unsigned char *)p->index_data) + 4 * 256 + 24 * entry->nr + 4;
}
static void *delta_against(void *buf, unsigned long size, struct object_entry *entry)
@ -996,7 +997,8 @@ static void check_object(struct object_entry *entry)
* delta.
*/
if (!no_reuse_delta) {
unsigned char c, *base_name;
unsigned char c;
const unsigned char *base_name;
off_t ofs;
unsigned long used_0;
/* there is at least 20 bytes left in the pack */