prio-queue: factor out compare and swap operations

diff --git a/remote.c b/remote.c
index eea2c8de45052e3e3a59fb150eef3f54c6086800..3d6c86a36f26406305d58505b10db3f747a2546c 100644 (file)
--- a/remote.c
+++ b/remote.c
@@ -170,7 +170,6 @@ static struct branch *make_branch(const char *name, int len)
 {
        struct branch *ret;
        int i;
-       char *refname;
 
        for (i = 0; i < branches_nr; i++) {
                if (len ? (!strncmp(name, branches[i]->name, len) &&
@@ -186,10 +185,7 @@ static struct branch *make_branch(const char *name, int len)
                ret->name = xstrndup(name, len);
        else
                ret->name = xstrdup(name);
-       refname = xmalloc(strlen(name) + strlen("refs/heads/") + 1);
-       strcpy(refname, "refs/heads/");
-       strcpy(refname + strlen("refs/heads/"), ret->name);
-       ret->refname = refname;
+       ret->refname = xstrfmt("refs/heads/%s", ret->name);
 
        return ret;
 }
@@ -488,9 +484,8 @@ static void read_config(void)
        current_branch = NULL;
        head_ref = resolve_ref_unsafe("HEAD", sha1, 0, &flag);
        if (head_ref && (flag & REF_ISSYMREF) &&
-           starts_with(head_ref, "refs/heads/")) {
-               current_branch =
-                       make_branch(head_ref + strlen("refs/heads/"), 0);
+           skip_prefix(head_ref, "refs/heads/", &head_ref)) {
+               current_branch = make_branch(head_ref, 0);
        }
        git_config(handle_config, NULL);
        if (branch_pushremote_name) {
@@ -523,7 +518,7 @@ static void free_refspecs(struct refspec *refspec, int nr_refspec)
 static struct refspec *parse_refspec_internal(int nr_refspec, const char **refspec, int fetch, int verify)
 {
        int i;
-       struct refspec *rs = xcalloc(sizeof(*rs), nr_refspec);
+       struct refspec *rs = xcalloc(nr_refspec, sizeof(*rs));
 
        for (i = 0; i < nr_refspec; i++) {
                size_t llen;
@@ -1194,7 +1189,7 @@ static int match_explicit(struct ref *src, struct ref *dst,
        case 1:
                break;
        case 0:
-               if (!memcmp(dst_value, "refs/", 5))
+               if (starts_with(dst_value, "refs/"))
                        matched_dst = make_linked_ref(dst_value, dst_tail);
                else if (is_null_sha1(matched_src->new_sha1))
                        error("unable to delete '%s': remote ref does not exist",