Please note that sorting on weight is already done by add_edge().
*/
-static void mst_kruskal(void) {
+static void mst_kruskal(meshlink_handle_t *mesh) {
/* Clear MST status on connections */
- for list_each(connection_t, c, connection_list)
+ for list_each(connection_t, c, mesh->connections)
c->status.mst = false;
logger(DEBUG_SCARY_THINGS, LOG_DEBUG, "Running Kruskal's algorithm:");
/* Clear visited status on nodes */
- for splay_each(node_t, n, node_tree)
+ for splay_each(node_t, n, mesh->nodes)
n->status.visited = false;
/* Starting point */
- for splay_each(edge_t, e, edge_weight_tree) {
+ for splay_each(edge_t, e, mesh->edges) {
if(e->from->status.reachable) {
e->from->status.visited = true;
break;
bool skipped = false;
- for splay_each(edge_t, e, edge_weight_tree) {
+ for splay_each(edge_t, e, mesh->edges) {
if(!e->reverse || (e->from->status.visited == e->to->status.visited)) {
skipped = true;
continue;
if(skipped) {
skipped = false;
- next = edge_weight_tree->head;
+ next = mesh->edges->head;
}
}
}
Running time: O(E)
*/
-static void sssp_bfs(void) {
+static void sssp_bfs(meshlink_handle_t *mesh) {
list_t *todo_list = list_alloc(NULL);
/* Clear visited status on nodes */
- for splay_each(node_t, n, node_tree) {
+ for splay_each(node_t, n, mesh->nodes) {
n->status.visited = false;
n->status.indirect = true;
n->distance = -1;
e->to->distance = n->distance + 1;
if(!e->to->status.reachable || (e->to->address.sa.sa_family == AF_UNSPEC && e->address.sa.sa_family != AF_UNKNOWN))
- update_node_udp(e->to, &e->address);
+ update_node_udp(mesh, e->to, &e->address);
list_insert_tail(todo_list, e->to);
}
list_free(todo_list);
}
-static void check_reachability(void) {
+static void check_reachability(meshlink_handle_t *mesh) {
/* Check reachability status. */
- for splay_each(node_t, n, node_tree) {
+ for splay_each(node_t, n, mesh->nodes) {
if(n->status.visited != n->status.reachable) {
n->status.reachable = !n->status.reachable;
- n->last_state_change = now.tv_sec;
+ n->last_state_change = mesh->loop.now.tv_sec;
if(n->status.reachable) {
logger(DEBUG_TRAFFIC, LOG_DEBUG, "Node %s (%s) became reachable",
n->minmtu = 0;
n->mtuprobes = 0;
- timeout_del(&n->mtutimeout);
+ timeout_del(&mesh->loop, &n->mtutimeout);
- //TODO: callback to application to inform of this node going up/down
+ if(mesh->node_status_cb)
+ mesh->node_status_cb(mesh, (meshlink_node_t *)n, n->status.reachable);
if(!n->status.reachable) {
- update_node_udp(n, NULL);
+ update_node_udp(mesh, n, NULL);
memset(&n->status, 0, sizeof n->status);
n->options = 0;
} else if(n->connection) {
if(n->connection->outgoing)
- send_req_key(n);
+ send_req_key(mesh, n);
}
}
}
}
-void graph(void) {
- sssp_bfs();
- check_reachability();
- mst_kruskal();
+void graph(meshlink_handle_t *mesh) {
+ sssp_bfs(mesh);
+ check_reachability(mesh);
+ mst_kruskal(mesh);
}