+#ifdef CONFIG_MPMC_WRITERS
+#define DEFAULT_WRITERS (CONFIG_MPMC_WRITERS)
+#else
+#define DEFAULT_WRITERS 2
+#endif
+
+#ifdef CONFIG_MPMC_RDWR
+#define DEFAULT_RDWR (CONFIG_MPMC_RDWR)
+#else
+#define DEFAULT_RDWR 0
+#endif
+
+int readers = DEFAULT_READERS, writers = DEFAULT_WRITERS, rdwr = DEFAULT_RDWR;