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each_ref_fn: change to take an object_id parameter

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Change typedef each_ref_fn to take a "const struct object_id *oid"
parameter instead of "const unsigned char *sha1".

To aid this transition, implement an adapter that can be used to wrap
old-style functions matching the old typedef, which is now called
"each_ref_sha1_fn"), and make such functions callable via the new
interface. This requires the old function and its cb_data to be
wrapped in a "struct each_ref_fn_sha1_adapter", and that object to be
used as the cb_data for an adapter function, each_ref_fn_adapter().

This is an enormous diff, but most of it consists of simple,
mechanical changes to the sites that call any of the "for_each_ref"
family of functions. Subsequent to this change, the call sites can be
rewritten one by one to use the new interface.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Michael Haggerty
2015-05-25 18:38:28 +00:00
committed by Junio C Hamano
parent 8353847e85
commit 2b2a5be394
36 changed files with 275 additions and 97 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
shallow.c
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@ -512,6 +512,8 @@ void assign_shallow_commits_to_refs(struct shallow_info *info,
unsigned int i, nr;
int *shallow, nr_shallow = 0;
struct paint_info pi;
struct each_ref_fn_sha1_adapter wrapped_mark_uninteresting =
{mark_uninteresting, NULL};
trace_printf_key(&trace_shallow, "shallow: assign_shallow_commits_to_refs\n");
shallow = xmalloc(sizeof(*shallow) * (info->nr_ours + info->nr_theirs));
@ -542,8 +544,8 @@ void assign_shallow_commits_to_refs(struct shallow_info *info,
* connect to old refs. If not (e.g. force ref updates) it'll
* have to go down to the current shallow commits.
*/
head_ref(mark_uninteresting, NULL);
for_each_ref(mark_uninteresting, NULL);
head_ref(each_ref_fn_adapter, &wrapped_mark_uninteresting);
for_each_ref(each_ref_fn_adapter, &wrapped_mark_uninteresting);
/* Mark potential bottoms so we won't go out of bound */
for (i = 0; i < nr_shallow; i++) {
@ -618,6 +620,8 @@ static void post_assign_shallow(struct shallow_info *info,
int dst, i, j;
int bitmap_nr = (info->ref->nr + 31) / 32;
struct commit_array ca;
struct each_ref_fn_sha1_adapter wrapped_add_ref =
{add_ref, &ca};
trace_printf_key(&trace_shallow, "shallow: post_assign_shallow\n");
if (ref_status)
@ -641,8 +645,8 @@ static void post_assign_shallow(struct shallow_info *info,
info->nr_theirs = dst;
memset(&ca, 0, sizeof(ca));
head_ref(add_ref, &ca);
for_each_ref(add_ref, &ca);
head_ref(each_ref_fn_adapter, &wrapped_add_ref);
for_each_ref(each_ref_fn_adapter, &wrapped_add_ref);
/* Remove unreachable shallow commits from "ours" */
for (i = dst = 0; i < info->nr_ours; i++) {
@ -674,9 +678,12 @@ int delayed_reachability_test(struct shallow_info *si, int c)
if (!si->commits) {
struct commit_array ca;
struct each_ref_fn_sha1_adapter wrapped_add_ref =
{add_ref, &ca};
memset(&ca, 0, sizeof(ca));
head_ref(add_ref, &ca);
for_each_ref(add_ref, &ca);
head_ref(each_ref_fn_adapter, &wrapped_add_ref);
for_each_ref(each_ref_fn_adapter, &wrapped_add_ref);
si->commits = ca.commits;
si->nr_commits = ca.nr;
}