diff options
| -rw-r--r-- | builtin/index-pack.c | 123 |
1 files changed, 60 insertions, 63 deletions
diff --git a/builtin/index-pack.c b/builtin/index-pack.c index 032716553c..e98b11ab37 100644 --- a/builtin/index-pack.c +++ b/builtin/index-pack.c @@ -33,12 +33,15 @@ struct object_stat { }; struct base_data { + /* Initialized by make_base(). */ struct base_data *base; struct object_entry *obj; - void *data; - unsigned long size; int ref_first, ref_last; int ofs_first, ofs_last; + + /* Not initialized by make_base(). */ + void *data; + unsigned long size; }; struct thread_local { @@ -362,14 +365,6 @@ static void set_thread_data(struct thread_local *data) pthread_setspecific(key, data); } -static struct base_data *alloc_base_data(void) -{ - struct base_data *base = xcalloc(1, sizeof(struct base_data)); - base->ref_last = -1; - base->ofs_last = -1; - return base; -} - static void free_base_data(struct base_data *c) { if (c->data) { @@ -406,19 +401,6 @@ static void prune_base_data(struct base_data *youngest_child) free(ancestry); } -static void link_base_data(struct base_data *base, struct base_data *c) -{ - c->base = base; - if (c->data) - get_thread_data()->base_cache_used += c->size; - prune_base_data(c); -} - -static void unlink_base_data(struct base_data *c) -{ - free_base_data(c); -} - static int is_delta_type(enum object_type type) { return (type == OBJ_REF_DELTA || type == OBJ_OFS_DELTA); @@ -929,10 +911,25 @@ static void *get_base_data(struct base_data *c) return c->data; } -static void resolve_delta(struct object_entry *delta_obj, - struct base_data *base, struct base_data *result) +static struct base_data *make_base(struct object_entry *obj, + struct base_data *parent) { - void *base_data, *delta_data; + struct base_data *base = xcalloc(1, sizeof(struct base_data)); + base->base = parent; + base->obj = obj; + find_ref_delta_children(&obj->idx.oid, + &base->ref_first, &base->ref_last); + find_ofs_delta_children(obj->idx.offset, + &base->ofs_first, &base->ofs_last); + return base; +} + +static struct base_data *resolve_delta(struct object_entry *delta_obj, + struct base_data *base) +{ + void *base_data, *delta_data, *result_data; + struct base_data *result; + unsigned long result_size; if (show_stat) { int i = delta_obj - objects; @@ -946,19 +943,31 @@ static void resolve_delta(struct object_entry *delta_obj, } delta_data = get_data_from_pack(delta_obj); base_data = get_base_data(base); - result->obj = delta_obj; - result->data = patch_delta(base_data, base->size, - delta_data, delta_obj->size, &result->size); + result_data = patch_delta(base_data, base->size, + delta_data, delta_obj->size, &result_size); free(delta_data); - if (!result->data) + if (!result_data) bad_object(delta_obj->idx.offset, _("failed to apply delta")); - hash_object_file(the_hash_algo, result->data, result->size, + hash_object_file(the_hash_algo, result_data, result_size, type_name(delta_obj->real_type), &delta_obj->idx.oid); - sha1_object(result->data, NULL, result->size, delta_obj->real_type, + sha1_object(result_data, NULL, result_size, delta_obj->real_type, &delta_obj->idx.oid); + + result = make_base(delta_obj, base); + if (result->ref_last == -1 && result->ofs_last == -1) { + free(result_data); + } else { + result->data = result_data; + result->size = result_size; + get_thread_data()->base_cache_used += result->size; + prune_base_data(result); + } + counter_lock(); nr_resolved_deltas++; counter_unlock(); + + return result; } /* @@ -984,24 +993,9 @@ static int compare_and_swap_type(signed char *type, static struct base_data *find_unresolved_deltas_1(struct base_data *base, struct base_data *prev_base) { - if (base->ref_last == -1 && base->ofs_last == -1) { - find_ref_delta_children(&base->obj->idx.oid, - &base->ref_first, &base->ref_last); - - find_ofs_delta_children(base->obj->idx.offset, - &base->ofs_first, &base->ofs_last); - - if (base->ref_last == -1 && base->ofs_last == -1) { - free(base->data); - return NULL; - } - - link_base_data(prev_base, base); - } - if (base->ref_first <= base->ref_last) { struct object_entry *child = objects + ref_deltas[base->ref_first].obj_no; - struct base_data *result = alloc_base_data(); + struct base_data *result; if (!compare_and_swap_type(&child->real_type, OBJ_REF_DELTA, base->obj->real_type)) @@ -1009,7 +1003,7 @@ static struct base_data *find_unresolved_deltas_1(struct base_data *base, (uintmax_t)child->idx.offset, oid_to_hex(&base->obj->idx.oid)); - resolve_delta(child, base, result); + result = resolve_delta(child, base); if (base->ref_first == base->ref_last && base->ofs_last == -1) free_base_data(base); @@ -1019,11 +1013,11 @@ static struct base_data *find_unresolved_deltas_1(struct base_data *base, if (base->ofs_first <= base->ofs_last) { struct object_entry *child = objects + ofs_deltas[base->ofs_first].obj_no; - struct base_data *result = alloc_base_data(); + struct base_data *result; assert(child->real_type == OBJ_OFS_DELTA); child->real_type = base->obj->real_type; - resolve_delta(child, base, result); + result = resolve_delta(child, base); if (base->ofs_first == base->ofs_last) free_base_data(base); @@ -1031,7 +1025,7 @@ static struct base_data *find_unresolved_deltas_1(struct base_data *base, return result; } - unlink_base_data(base); + free_base_data(base); return NULL; } @@ -1074,9 +1068,8 @@ static int compare_ref_delta_entry(const void *a, const void *b) static void resolve_base(struct object_entry *obj) { - struct base_data *base_obj = alloc_base_data(); - base_obj->obj = obj; - base_obj->data = NULL; + struct base_data *base_obj = make_base(obj, NULL); + find_unresolved_deltas(base_obj); } @@ -1369,22 +1362,26 @@ static void fix_unresolved_deltas(struct hashfile *f) for (i = 0; i < nr_ref_deltas; i++) { struct ref_delta_entry *d = sorted_by_pos[i]; enum object_type type; - struct base_data *base_obj = alloc_base_data(); + struct base_data *base; + void *data; + unsigned long size; + struct object_entry *obj; if (objects[d->obj_no].real_type != OBJ_REF_DELTA) continue; - base_obj->data = read_object_file(&d->oid, &type, - &base_obj->size); - if (!base_obj->data) + data = read_object_file(&d->oid, &type, &size); + if (!data) continue; if (check_object_signature(the_repository, &d->oid, - base_obj->data, base_obj->size, + data, size, type_name(type))) die(_("local object %s is corrupt"), oid_to_hex(&d->oid)); - base_obj->obj = append_obj_to_pack(f, d->oid.hash, - base_obj->data, base_obj->size, type); - find_unresolved_deltas(base_obj); + obj = append_obj_to_pack(f, d->oid.hash, data, size, type); + base = make_base(obj, NULL); + base->data = data; + base->size = size; + find_unresolved_deltas(base); display_progress(progress, nr_resolved_deltas); } free(sorted_by_pos); |