int qemu_opts_foreach(QemuOptsList *list, qemu_opts_loopfunc func, void *opaque, int abort_on_failure) { QemuOpts *opts; int rc = 0; TAILQ_FOREACH(opts, &list->head, next) { rc = func(opts, opaque); if (abort_on_failure && rc != 0) break; } return rc; }