void
GMP_queue_cancel (struct MeshPeer *peer, struct MeshConnection *c);
+/**
+ * Get the first message for a connection and unqueue it.
+ *
+ * @param peer Neighboring peer.
+ * @param c Connection.
+ *
+ * @return First message for this connection.
+ */
+struct GNUNET_MessageHeader *
+GMP_connection_pop (struct MeshPeer *peer, struct MeshConnection *c);
+
void
GMP_queue_unlock (struct MeshPeer *peer, struct MeshConnection *c);