static void check_reachability(meshlink_handle_t *mesh) {
/* Check reachability status. */
+ int reachable = -1; /* Don't count ourself */
+
for splay_each(node_t, n, mesh->nodes) {
+ if(n->status.visited) {
+ reachable++;
+ }
+
/* Check for nodes that have changed session_id */
if(n->status.visited && n->prevedge && n->prevedge->reverse->session_id != n->session_id) {
n->session_id = n->prevedge->reverse->session_id;
}
}
}
+
+ if(mesh->reachable != reachable) {
+ if(!reachable) {
+ mesh->last_unreachable = mesh->loop.now.tv_sec;
+
+ if(mesh->threadstarted) {
+ timeout_set(&mesh->loop, &mesh->periodictimer, &(struct timeval) {
+ 0, prng(mesh, TIMER_FUDGE)
+ });
+ }
+ }
+
+ mesh->reachable = reachable;
+ }
}
void graph(meshlink_handle_t *mesh) {