In order to encapsulate the setting of the unique commit index, commit
969eba63 ("commit: push commit_index update into alloc_commit_node",
10-06-2014) introduced a (logically private) intermediary allocator
function. However, this function (alloc_raw_commit_node()) was declared
as a public function, which undermines its entire purpose.
Remove the alloc_raw_commit_node() function and inline its code into
the (public) alloc_commit_node() function.
Noticed by sparse ("symbol 'alloc_raw_commit_node' was not declared.
Should it be static?").
Signed-off-by: Ramsay Jones <[email protected]>
---
Hi Jeff,
I noticed this while it was still in 'pu', but got distracted and
didn't send this in time ... sorry about that! :(
My first attempt at fixing this involved changing the DEFINE_ALLOCATOR
macro to include a 'scope' parameter so that I could declare the
raw_commit allocator 'static'. Unfortunately, I could not pass the
extern keyword as the scope parameter to all the other allocators,
because that made sparse even more upset - you can't use extern on
a function _definition_. That meant passing an empty argument (or a
comment token) to the scope parameter. This worked for gcc 4.8.2 and
clang 3.4, but I was a little concerned about portability.
This seems a better solution to me. Having said that ... as I'm typing
this I realized that I could have removed the 'commit_count' variable
and used 'commit_allocs' to set c->index instead! :-P Oh well ...
ATB,
Ramsay Jones
alloc.c | 22 ++++++++++++++++++----
1 file changed, 18 insertions(+), 4 deletions(-)
diff --git a/alloc.c b/alloc.c
index eb22a45..124d710 100644
--- a/alloc.c
+++ b/alloc.c
@@ -47,16 +47,30 @@ union any_object {
DEFINE_ALLOCATOR(blob, struct blob)
DEFINE_ALLOCATOR(tree, struct tree)
-DEFINE_ALLOCATOR(raw_commit, struct commit)
DEFINE_ALLOCATOR(tag, struct tag)
DEFINE_ALLOCATOR(object, union any_object)
+static unsigned int commit_allocs;
+
void *alloc_commit_node(void)
{
static int commit_count;
- struct commit *c = alloc_raw_commit_node();
+ static int nr;
+ static struct commit *block;
+ struct commit *c;
+ void *ret;
+
+ if (!nr) {
+ nr = BLOCKING;
+ block = xmalloc(BLOCKING * sizeof(struct commit));
+ }
+ nr--;
+ commit_allocs++;
+ ret = block++;
+ memset(ret, 0, sizeof(struct commit));
+ c = (struct commit *) ret;
c->index = commit_count++;
- return c;
+ return ret;
}
static void report(const char *name, unsigned int count, size_t size)
@@ -72,7 +86,7 @@ void alloc_report(void)
{
REPORT(blob, struct blob);
REPORT(tree, struct tree);
- REPORT(raw_commit, struct commit);
+ REPORT(commit, struct commit);
REPORT(tag, struct tag);
REPORT(object, union any_object);
}
--
2.0.0
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