int touch(const char *path);
+char *unquote(const char *s, const char quote);
+
+#define NULSTR_FOREACH(i, l) \
+ for ((i) = (l); (i) && *(i); (i) = strchr((i), 0)+1)
+
const char *ioprio_class_to_string(int i);
int ioprio_class_from_string(const char *s);