*/
extern uint32_t meshlink_channel_get_flags(meshlink_handle_t *mesh, meshlink_channel_t *channel);
+/// Get the amount of bytes in the send buffer.
+/** This returns the amount of bytes in the send buffer.
+ * These bytes have not been received by the peer yet.
+ *
+ * @param mesh A handle which represents an instance of MeshLink.
+ * @param channel A handle for the channel.
+ *
+ * @return The amount of un-ACKed bytes in the send buffer.
+ */
+extern size_t meshlink_channel_get_sendq(meshlink_handle_t *mesh, meshlink_channel_t *channel);
+
+/// Get the amount of bytes in the receive buffer.
+/** This returns the amount of bytes in the receive buffer.
+ * These bytes have not been processed by the application yet.
+ *
+ * @param mesh A handle which represents an instance of MeshLink.
+ * @param channel A handle for the channel.
+ *
+ * @return The amount of bytes in the receive buffer.
+ */
+extern size_t meshlink_channel_get_recvq(meshlink_handle_t *mesh, meshlink_channel_t *channel);
+
/// Hint that a hostname may be found at an address
/** This function indicates to meshlink that the given hostname is likely found
* at the given IP address and port.