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object: remove "used" field from struct object

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The "used" field in struct object is only used by builtin/fsck. Remove
that field and modify builtin/fsck to use a flag instead.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Tan 2017-07-19 17:21:44 -07:00 committed by Junio C Hamano
parent ad2db4030e
commit 092c55d094
3 changed files with 15 additions and 12 deletions
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24
builtin/fsck.c
View File

@ -19,6 +19,8 @@
#define REACHABLE 0x0001
#define SEEN 0x0002
#define HAS_OBJ 0x0004
/* This flag is set if something points to this object. */
#define USED 0x0008
static int show_root;
static int show_tags;
@ -195,7 +197,7 @@ static int mark_used(struct object *obj, int type, void *data, struct fsck_optio
{
if (!obj)
return 1;
obj->used = 1;
obj->flags |= USED;
return 0;
}
@ -244,7 +246,7 @@ static void check_unreachable_object(struct object *obj)
}
/*
* "!used" means that nothing at all points to it, including
* "!USED" means that nothing at all points to it, including
* other unreachable objects. In other words, it's the "tip"
* of some set of unreachable objects, usually a commit that
* got dropped.
@ -255,7 +257,7 @@ static void check_unreachable_object(struct object *obj)
* deleted a branch by mistake, this is a prime candidate to
* start looking at, for example.
*/
if (!obj->used) {
if (!(obj->flags & USED)) {
if (show_dangling)
printf("dangling %s %s\n", printable_type(obj),
describe_object(obj));
@ -379,7 +381,8 @@ static int fsck_obj_buffer(const struct object_id *oid, enum object_type type,
errors_found |= ERROR_OBJECT;
return error("%s: object corrupt or missing", oid_to_hex(oid));
}
obj->flags = HAS_OBJ;
obj->flags &= ~(REACHABLE | SEEN);
obj->flags |= HAS_OBJ;
return fsck_obj(obj);
}
@ -397,7 +400,7 @@ static void fsck_handle_reflog_oid(const char *refname, struct object_id *oid,
add_decoration(fsck_walk_options.object_names,
obj,
xstrfmt("%s@{%"PRItime"}", refname, timestamp));
obj->used = 1;
obj->flags |= USED;
mark_object_reachable(obj);
} else {
error("%s: invalid reflog entry %s", refname, oid_to_hex(oid));
@ -445,7 +448,7 @@ static int fsck_handle_ref(const char *refname, const struct object_id *oid,
errors_found |= ERROR_REFS;
}
default_refs++;
obj->used = 1;
obj->flags |= USED;
if (name_objects)
add_decoration(fsck_walk_options.object_names,
obj, xstrdup(refname));
@ -513,7 +516,8 @@ static int fsck_loose(const struct object_id *oid, const char *path, void *data)
return 0; /* keep checking other objects */
}
obj->flags = HAS_OBJ;
obj->flags &= ~(REACHABLE | SEEN);
obj->flags |= HAS_OBJ;
if (fsck_obj(obj))
errors_found |= ERROR_OBJECT;
return 0;
@ -595,7 +599,7 @@ static int fsck_cache_tree(struct cache_tree *it)
errors_found |= ERROR_REFS;
return 1;
}
obj->used = 1;
obj->flags |= USED;
if (name_objects)
add_decoration(fsck_walk_options.object_names,
obj, xstrdup(":"));
@ -737,7 +741,7 @@ int cmd_fsck(int argc, const char **argv, const char *prefix)
continue;
}
obj->used = 1;
obj->flags |= USED;
if (name_objects)
add_decoration(fsck_walk_options.object_names,
obj, xstrdup(arg));
@ -774,7 +778,7 @@ int cmd_fsck(int argc, const char **argv, const char *prefix)
if (!blob)
continue;
obj = &blob->object;
obj->used = 1;
obj->flags |= USED;
if (name_objects)
add_decoration(fsck_walk_options.object_names,
obj,

1
object.c
View File

@ -141,7 +141,6 @@ void *create_object(const unsigned char *sha1, void *o)
struct object *obj = o;
obj->parsed = 0;
obj->used = 0;
obj->flags = 0;
hashcpy(obj->oid.hash, sha1);

2
object.h
View File

@ -38,6 +38,7 @@ struct object_array {
* http-push.c: 16-----19
* commit.c: 16-----19
* sha1_name.c: 20
* builtin/fsck.c: 0--3
*/
#define FLAG_BITS 27
@ -46,7 +47,6 @@ struct object_array {
*/
struct object {
unsigned parsed : 1;
unsigned used : 1;
unsigned type : TYPE_BITS;
unsigned flags : FLAG_BITS;
struct object_id oid;