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convert object type handling from a string to a number

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We currently have two parallel notation for dealing with object types
in the code: a string and a numerical value.  One of them is obviously
redundent, and the most used one requires more stack space and a bunch
of strcmp() all over the place.

This is an initial step for the removal of the version using a char array
found in object reading code paths.  The patch is unfortunately large but
there is no sane way to split it in smaller parts without breaking the
system.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Nicolas Pitre
2007-02-26 14:55:59 -05:00
committed by Junio C Hamano
parent df8436622f
commit 21666f1aae
37 changed files with 265 additions and 289 deletions
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32
builtin-pack-objects.c
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@ -230,8 +230,8 @@ static unsigned char *find_packed_object_name(struct packed_git *p,
static void *delta_against(void *buf, unsigned long size, struct object_entry *entry)
{
unsigned long othersize, delta_size;
char type[10];
void *otherbuf = read_sha1_file(entry->delta->sha1, type, &othersize);
enum object_type type;
void *otherbuf = read_sha1_file(entry->delta->sha1, &type, &othersize);
void *delta_buf;
if (!otherbuf)
@ -375,7 +375,7 @@ static unsigned long write_object(struct sha1file *f,
struct object_entry *entry)
{
unsigned long size;
char type[10];
enum object_type type;
void *buf;
unsigned char header[10];
unsigned hdrlen, datalen;
@ -416,7 +416,7 @@ static unsigned long write_object(struct sha1file *f,
}
if (!to_reuse) {
buf = read_sha1_file(entry->sha1, type, &size);
buf = read_sha1_file(entry->sha1, &type, &size);
if (!buf)
die("unable to read %s", sha1_to_hex(entry->sha1));
if (size != entry->size)
@ -765,7 +765,7 @@ static struct pbase_tree_cache *pbase_tree_get(const unsigned char *sha1)
struct pbase_tree_cache *ent, *nent;
void *data;
unsigned long size;
char type[20];
enum object_type type;
int neigh;
int my_ix = pbase_tree_cache_ix(sha1);
int available_ix = -1;
@ -792,10 +792,10 @@ static struct pbase_tree_cache *pbase_tree_get(const unsigned char *sha1)
/* Did not find one. Either we got a bogus request or
* we need to read and perhaps cache.
*/
data = read_sha1_file(sha1, type, &size);
data = read_sha1_file(sha1, &type, &size);
if (!data)
return NULL;
if (strcmp(type, tree_type)) {
if (type != OBJ_TREE) {
free(data);
return NULL;
}
@ -854,19 +854,19 @@ static void add_pbase_object(struct tree_desc *tree,
while (tree_entry(tree,&entry)) {
unsigned long size;
char type[20];
enum object_type type;
if (entry.pathlen != cmplen ||
memcmp(entry.path, name, cmplen) ||
!has_sha1_file(entry.sha1) ||
sha1_object_info(entry.sha1, type, &size))
(type = sha1_object_info(entry.sha1, &size)) < 0)
continue;
if (name[cmplen] != '/') {
unsigned hash = name_hash(fullname);
add_object_entry(entry.sha1, hash, 1);
return;
}
if (!strcmp(type, tree_type)) {
if (type == OBJ_TREE) {
struct tree_desc sub;
struct pbase_tree_cache *tree;
const char *down = name+cmplen+1;
@ -978,8 +978,6 @@ static void add_preferred_base(unsigned char *sha1)
static void check_object(struct object_entry *entry)
{
char type[20];
if (entry->in_pack && !entry->preferred_base) {
struct packed_git *p = entry->in_pack;
struct pack_window *w_curs = NULL;
@ -1062,10 +1060,10 @@ static void check_object(struct object_entry *entry)
/* Otherwise we would do the usual */
}
if (sha1_object_info(entry->sha1, type, &entry->size))
entry->type = sha1_object_info(entry->sha1, &entry->size);
if (entry->type < 0)
die("unable to get type of object %s",
sha1_to_hex(entry->sha1));
entry->type = type_from_string(type);
}
static unsigned int check_delta_limit(struct object_entry *me, unsigned int n)
@ -1195,7 +1193,7 @@ static int try_delta(struct unpacked *trg, struct unpacked *src,
struct object_entry *trg_entry = trg->entry;
struct object_entry *src_entry = src->entry;
unsigned long trg_size, src_size, delta_size, sizediff, max_size, sz;
char type[10];
enum object_type type;
void *delta_buf;
/* Don't bother doing diffs between different types */
@ -1246,13 +1244,13 @@ static int try_delta(struct unpacked *trg, struct unpacked *src,
/* Load data if not already done */
if (!trg->data) {
trg->data = read_sha1_file(trg_entry->sha1, type, &sz);
trg->data = read_sha1_file(trg_entry->sha1, &type, &sz);
if (sz != trg_size)
die("object %s inconsistent object length (%lu vs %lu)",
sha1_to_hex(trg_entry->sha1), sz, trg_size);
}
if (!src->data) {
src->data = read_sha1_file(src_entry->sha1, type, &sz);
src->data = read_sha1_file(src_entry->sha1, &type, &sz);
if (sz != src_size)
die("object %s inconsistent object length (%lu vs %lu)",
sha1_to_hex(src_entry->sha1), sz, src_size);