Add missing parts of meshlink_set_node_pmtu_cb().

[meshlink] / src / meshlink++.h

diff --git a/src/meshlink++.h b/src/meshlink++.h
index 5550a9e302339c02a2ce5a66862072384d86ee62..6b9c685528bf4015e34e7995cc55cec5159a01e8 100644 (file)
--- a/src/meshlink++.h
+++ b/src/meshlink++.h
@@ -57,6 +57,14 @@ typedef void (*connection_try_cb_t)(mesh *mesh, node *node);
  */
 typedef void (*node_status_cb_t)(mesh *mesh, node *node, bool reachable);
 
+/// A callback reporting node path MTU changes.
+/** @param mesh       A handle which represents an instance of MeshLink.
+ *  @param node       A pointer to a meshlink_node_t describing the node whose status changed.
+ *                    This pointer is valid until meshlink_close() is called.
+ *  @param pmtu       The current path MTU to the node, or 0 if UDP communication is not (yet) possible.
+ */
+typedef void (*node_pmtu_cb_t)(mesh *mesh, node *node, uint16_t pmtu);
+
 /// A callback reporting duplicate node detection.
 /** @param mesh       A handle which represents an instance of MeshLink.
  *  @param node       A pointer to a meshlink_node_t describing the node which is duplicate.
@@ -231,6 +239,13 @@ public:
                (void)reachable;
        }
 
+       /// This functions is called whenever another node's path MTU changes.
+       virtual void node_pmtu(node *peer, uint16_t pmtu) {
+               /* do nothing */
+               (void)peer;
+               (void)pmtu;
+       }
+
        /// This functions is called whenever a duplicate node is detected.
        virtual void node_duplicate(node *peer) {
                /* do nothing */
@@ -321,6 +336,7 @@ public:
        bool start() {
                meshlink_set_receive_cb(handle, &receive_trampoline);
                meshlink_set_node_status_cb(handle, &node_status_trampoline);
+               meshlink_set_node_pmtu_cb(handle, &node_pmtu_trampoline);
                meshlink_set_node_duplicate_cb(handle, &node_duplicate_trampoline);
                meshlink_set_log_cb(handle, MESHLINK_DEBUG, &log_trampoline);
                meshlink_set_channel_accept_cb(handle, &channel_accept_trampoline);
@@ -905,6 +921,15 @@ private:
                that->node_status(static_cast<node *>(peer), reachable);
        }
 
+       static void node_pmtu_trampoline(meshlink_handle_t *handle, meshlink_node_t *peer, uint16_t pmtu) {
+               if(!(handle->priv)) {
+                       return;
+               }
+
+               meshlink::mesh *that = static_cast<mesh *>(handle->priv);
+               that->node_pmtu(static_cast<node *>(peer), pmtu);
+       }
+
        static void node_duplicate_trampoline(meshlink_handle_t *handle, meshlink_node_t *peer) {
                if(!(handle->priv)) {
                        return;