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commit: push commit_index update into alloc_commit_node

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Whenever we create a commit object via lookup_commit, we
give it a unique index to be used with the commit-slab API.
The theory is that any "struct commit" we create would
follow this code path, so any such struct would get an
index. However, callers could use alloc_commit_node()
directly (and get multiple commits with index 0).

Let's push the indexing into alloc_commit_node so that it's
hard for callers to get it wrong.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King
2014-06-10 17:39:04 -04:00
committed by Junio C Hamano
parent c335d74d34
commit 969eba6341
2 changed files with 10 additions and 4 deletions
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12
alloc.c
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@ -47,10 +47,18 @@ union any_object {
DEFINE_ALLOCATOR(blob, struct blob)
DEFINE_ALLOCATOR(tree, struct tree)
DEFINE_ALLOCATOR(commit, struct commit)
DEFINE_ALLOCATOR(raw_commit, struct commit)
DEFINE_ALLOCATOR(tag, struct tag)
DEFINE_ALLOCATOR(object, union any_object)
void *alloc_commit_node(void)
{
static int commit_count;
struct commit *c = alloc_raw_commit_node();
c->index = commit_count++;
return c;
}
static void report(const char *name, unsigned int count, size_t size)
{
fprintf(stderr, "%10s: %8u (%"PRIuMAX" kB)\n",
@ -64,7 +72,7 @@ void alloc_report(void)
{
REPORT(blob, struct blob);
REPORT(tree, struct tree);
REPORT(commit, struct commit);
REPORT(raw_commit, struct commit);
REPORT(tag, struct tag);
REPORT(object, union any_object);
}