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upload-pack: make reachable() more generic

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In anticipation of moving the reachable() method to commit-reach.c,
modify the prototype to be more generic to flags known outside of
upload-pack.c. Also rename 'want' to 'from' to make the statement
more clear outside of the context of haves/wants negotiation.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Derrick Stolee 2018-07-20 16:33:09 +00:00 committed by Junio C Hamano
parent 920f93ca1c
commit f044bb49ad
1 changed files with 9 additions and 8 deletions
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17
upload-pack.c
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@ -336,17 +336,18 @@ static int got_oid(const char *hex, struct object_id *oid)
return 0;
}
static int reachable(struct commit *want)
static int reachable(struct commit *from, unsigned int with_flag,
unsigned int assign_flag)
{
struct prio_queue work = { compare_commits_by_commit_date };
prio_queue_put(&work, want);
prio_queue_put(&work, from);
while (work.nr) {
struct commit_list *list;
struct commit *commit = prio_queue_get(&work);
if (commit->object.flags & THEY_HAVE) {
want->object.flags |= COMMON_KNOWN;
if (commit->object.flags & with_flag) {
from->object.flags |= assign_flag;
break;
}
if (!commit->object.parsed)
@ -362,10 +363,10 @@ static int reachable(struct commit *want)
prio_queue_put(&work, parent);
}
}
want->object.flags |= REACHABLE;
clear_commit_marks(want, REACHABLE);
from->object.flags |= REACHABLE;
clear_commit_marks(from, REACHABLE);
clear_prio_queue(&work);
return (want->object.flags & COMMON_KNOWN);
return (from->object.flags & assign_flag);
}
static int ok_to_give_up(void)
@ -390,7 +391,7 @@ static int ok_to_give_up(void)
want_obj.objects[i].item->flags |= COMMON_KNOWN;
continue;
}
if (!reachable((struct commit *)want))
if (!reachable((struct commit *)want, THEY_HAVE, COMMON_KNOWN))
return 0;
}
return 1;