+/* specialized version of repo_add_solvable_block that inserts the new solvable
+ * block before the indicated repo, which gets relocated.
+ * used in repo_add_rpmdb
+ */
+Id
+repo_add_solvable_block_before(Repo *repo, int count, Repo *beforerepo)
+{
+ Pool *pool = repo->pool;
+ Id p;
+ Solvable *s;
+ Repodata *data;
+ int i;
+
+ if (!count || !beforerepo || beforerepo->end != pool->nsolvables || beforerepo->start == beforerepo->end)
+ return repo_add_solvable_block(repo, count);
+ p = beforerepo->start;
+ /* make sure all solvables belong to beforerepo */
+ for (i = p, s = pool->solvables + i; i < beforerepo->end; i++, s++)
+ if (s->repo && s->repo != beforerepo)
+ return repo_add_solvable_block(repo, count);
+ /* now move beforerepo to back */
+ pool_add_solvable_block(pool, count); /* must return beforerepo->end! */
+ memmove(pool->solvables + p + count, pool->solvables + p, (beforerepo->end - p) * sizeof(Solvable));
+ memset(pool->solvables + p, 0, sizeof(Solvable) * count);
+ /* adapt repodata */
+ FOR_REPODATAS(beforerepo, i, data)
+ {
+ if (data->start < p)
+ continue;
+ data->start += count;
+ data->end += count;
+ }
+ beforerepo->start += count;
+ beforerepo->end += count;
+ /* we now have count free solvables at id p */
+ /* warning: sidedata must be extended before adapting start/end */
+ if (repo->rpmdbid)
+ repo->rpmdbid = (Id *)repo_sidedata_extend(repo, repo->rpmdbid, sizeof(Id), p, count);
+ if (p < repo->start)
+ repo->start = p;
+ if (p + count > repo->end)
+ repo->end = p + count;
+ repo->nsolvables += count;
+ for (s = pool->solvables + p; count--; s++)
+ s->repo = repo;
+ return p;
+}
+