+/**
+ * Free fifo allocated by external applications
+ *
+ * @params fs fifo segment for fifo
+ * @param f fifo to be freed
+ */
+void fifo_segment_free_client_fifo (fifo_segment_t *fs, svm_fifo_t *f);
+
+void fifo_segment_detach_fifo (fifo_segment_t *fs, svm_fifo_t **f);
+void fifo_segment_attach_fifo (fifo_segment_t *fs, svm_fifo_t **f,
+ u32 slice_index);
+uword fifo_segment_fifo_offset (svm_fifo_t *f);
+
+/**
+ * Allocate message queue on segment
+ *
+ * @param fs fifo segment for mq
+ * @param mq_index index in private mqs vector to use to attach
+ * @param cfg configuration for mq
+ * @return attached message queue
+ */
+svm_msg_q_t *fifo_segment_msg_q_alloc (fifo_segment_t *fs, u32 mq_index,
+ svm_msg_q_cfg_t *cfg);
+
+/**
+ * Attach message queue at fifo segment offset
+ *
+ * @param fs fifo segment for mq
+ * @param offset offset for shared mq on the segment
+ * @param mq_index index in private mqs vector to use to attach
+ * @return attached message queue
+ */
+svm_msg_q_t *fifo_segment_msg_q_attach (fifo_segment_t *fs, uword offset,
+ u32 mq_index);
+
+/**
+ * Discover mqs on mq only segment
+ *
+ * @param fs fifo segment for mq
+ * @param fds array of fds is mqs use eventfds
+ * @param n_fds number of fds
+ */
+void fifo_segment_msg_qs_discover (fifo_segment_t *fs, int *fds, u32 n_fds);
+
+/**
+ * Message queue offset on segment
+ *
+ * @param fs fifo segment for mq
+ * @param mq_index index of mq in private mqs vector
+ * @return offset of the shared mq the private mq is attached to
+ */
+uword fifo_segment_msg_q_offset (fifo_segment_t *fs, u32 mq_index);
+