+
+/** Evaluates to 1 if x < y, to -1 if x > y and to 0 if x == y. */
+#define NUM_COMPARE(x, y) ((int)((x) < (y)) - (int)((x) > (y)))
+
+/** The columns of the directory table. */
+enum dir_table_columns {
+ /** The name of the directory. */
+ DT_NAME,
+ /** The dir count number. */
+ DT_NUM,
+ /** The number of the parent directory. */
+ DT_PARENT_NUM,
+ /** The number of bytes of all regular files. */
+ DT_BYTES,
+ /** The number of all regular files. */
+ DT_FILES,
+ /** Number of columns in this table. */
+ NUM_DT_COLUMNS
+};
+
+extern struct osl_table *dir_table;
+
+/** The adu command line options. */
+extern struct gengetopt_args_info conf;
+
+/**
+ * The select command line options.
+ *
+ * Either given at the command line, or via the \a set command
+ * in interactive mode.
+ */
+extern struct select_args_info select_conf;
+
+/**
+ * Compare two osl objects pointing to unsigned integers of 64 bit size.
+ *
+ * \param obj1 Pointer to the first integer.
+ * \param obj2 Pointer to the second integer.
+ *
+ * \return The values required for an osl compare function.
+ *
+ * \sa osl_compare_func, osl_hash_compare().
+ */
+static inline int uint64_compare(const struct osl_object *obj1,
+ const struct osl_object *obj2)
+{
+ uint64_t d1 = read_u64((const char *)obj1->data);
+ uint64_t d2 = read_u64((const char *)obj2->data);
+
+ if (d1 < d2)
+ return 1;
+ if (d1 > d2)
+ return -1;
+ return 0;
+}
+
+/**
+ * Compare the size of two directories
+ *
+ * \param obj1 Pointer to the first object.
+ * \param obj2 Pointer to the second object.
+ *
+ * This function first compares the size values as usual integers. If they compare as
+ * equal, the address of \a obj1 and \a obj2 are compared. So this compare function
+ * returns zero if and only if \a obj1 and \a obj2 point to the same memory area.
+ */
+static inline int size_compare(const struct osl_object *obj1, const struct osl_object *obj2)
+{
+ uint64_t d1 = *(uint64_t *)obj1->data;
+ uint64_t d2 = *(uint64_t *)obj2->data;
+ int ret = NUM_COMPARE(d2, d1);
+
+ if (ret)
+ return ret;
+ //INFO_LOG("addresses: %p, %p\n", obj1->data, obj2->data);
+ return NUM_COMPARE(obj2->data, obj1->data);
+}
+
+/* adu.c */
+__printf_2_3 void __log(int, const char*, ...);
+int open_dir_table(int create);
+void check_signals(void);
+void close_all_tables(void);
+/* create.c */
+int com_create(void);
+
+/* interactive.c */
+void print_interactive_help(void);
+int com_interactive(void);