MESH_ChannelNumber
GMT_get_next_chid (struct MeshTunnel3 *t);
+/**
+ * Send ACK on one or more connections due to buffer space to the client.
+ *
+ * Iterates all connections of the tunnel and sends ACKs appropriately.
+ *
+ * @param ch Channel which has some free buffer space.
+ * @param fwd Is this in for FWD traffic? (ACK goes dest->root)
+ */
+void
+GMT_send_acks (struct MeshTunnel3 *t, unsigned int buffer, int fwd);
+
/**
* Sends an already built message on a tunnel, encrypting it and
* choosing the best connection.