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pack-objects: move in_pack_pos out of struct object_entry

Browse Source 
This field is only need for pack-bitmap, which is an optional
feature. Move it to a separate array that is only allocated when
pack-bitmap is used (like objects[], it is not freed, since we need it
until the end of the process)

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy 2018-04-14 17:35:04 +02:00 committed by Junio C Hamano
parent b5c0cbd808
commit 06af3bba41
5 changed files with 26 additions and 7 deletions
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3
builtin/pack-objects.c
View File

@ -879,7 +879,8 @@ static void write_pack_file(void)
if (write_bitmap_index) {
bitmap_writer_set_checksum(oid.hash);
bitmap_writer_build_type_index(written_list, nr_written);
bitmap_writer_build_type_index(
&to_pack, written_list, nr_written);
}
finish_tmp_packfile(&tmpname, pack_tmp_name,

8
pack-bitmap-write.c
View File

@ -48,7 +48,8 @@ void bitmap_writer_show_progress(int show)
/**
* Build the initial type index for the packfile
*/
void bitmap_writer_build_type_index(struct pack_idx_entry **index,
void bitmap_writer_build_type_index(struct packing_data *to_pack,
struct pack_idx_entry **index,
uint32_t index_nr)
{
uint32_t i;
@ -57,12 +58,13 @@ void bitmap_writer_build_type_index(struct pack_idx_entry **index,
writer.trees = ewah_new();
writer.blobs = ewah_new();
writer.tags = ewah_new();
ALLOC_ARRAY(to_pack->in_pack_pos, to_pack->nr_objects);
for (i = 0; i < index_nr; ++i) {
struct object_entry *entry = (struct object_entry *)index[i];
enum object_type real_type;
entry->in_pack_pos = i;
oe_set_in_pack_pos(to_pack, entry, i);
switch (oe_type(entry)) {
case OBJ_COMMIT:
@ -146,7 +148,7 @@ static uint32_t find_object_pos(const unsigned char *sha1)
"(object %s is missing)", sha1_to_hex(sha1));
}
return entry->in_pack_pos;
return oe_in_pack_pos(writer.to_pack, entry);
}
static void show_object(struct object *object, const char *name, void *data)

2
pack-bitmap.c
View File

@ -1033,7 +1033,7 @@ int rebuild_existing_bitmaps(struct packing_data *mapping,
oe = packlist_find(mapping, sha1, NULL);
if (oe)
reposition[i] = oe->in_pack_pos + 1;
reposition[i] = oe_in_pack_pos(mapping, oe) + 1;
}
rebuild = bitmap_new();

4
pack-bitmap.h
View File

@ -44,7 +44,9 @@ int rebuild_existing_bitmaps(struct packing_data *mapping, khash_sha1 *reused_bi
void bitmap_writer_show_progress(int show);
void bitmap_writer_set_checksum(unsigned char *sha1);
void bitmap_writer_build_type_index(struct pack_idx_entry **index, uint32_t index_nr);
void bitmap_writer_build_type_index(struct packing_data *to_pack,
struct pack_idx_entry **index,
uint32_t index_nr);
void bitmap_writer_reuse_bitmaps(struct packing_data *to_pack);
void bitmap_writer_select_commits(struct commit **indexed_commits,
unsigned int indexed_commits_nr, int max_bitmaps);

16
pack-objects.h
View File

@ -79,7 +79,6 @@ struct object_entry {
unsigned in_pack_type:TYPE_BITS; /* could be delta */
unsigned type_valid:1;
uint32_t hash; /* name hint hash */
unsigned int in_pack_pos;
unsigned char in_pack_header_size;
unsigned preferred_base:1; /*
* we do not pack this, but is available
@ -99,6 +98,8 @@ struct packing_data {
int32_t *index;
uint32_t index_size;
unsigned int *in_pack_pos;
};
struct object_entry *packlist_alloc(struct packing_data *pdata,
@ -144,4 +145,17 @@ static inline void oe_set_type(struct object_entry *e,
e->type_ = (unsigned)type;
}
static inline unsigned int oe_in_pack_pos(const struct packing_data *pack,
const struct object_entry *e)
{
return pack->in_pack_pos[e - pack->objects];
}
static inline void oe_set_in_pack_pos(const struct packing_data *pack,
const struct object_entry *e,
unsigned int pos)
{
pack->in_pack_pos[e - pack->objects] = pos;
}
#endif