return bool when trying to establish link layer session

include/llarp/link/server.hpp

@@ -67,7 +67,7 @@ namespace llarp
     bool
     PickAddress(const RouterContact& rc, AddressInfo& picked) const;
 
-    void
+    bool
     TryEstablishTo(const RouterContact& rc);
 
     bool

llarp/link/server.cpp

@@ -118,17 +118,18 @@ namespace llarp
     return false;
   }
 
-  void
+  bool
   ILinkLayer::TryEstablishTo(const RouterContact& rc)
   {
     llarp::AddressInfo to;
     if(!PickAddress(rc, to))
-      return;
+      return false;
     llarp::LogInfo("Try establish to ", rc.pubkey);
     llarp::Addr addr(to);
     auto s = NewOutboundSession(rc, to);
     s->Start();
     PutSession(s);
+    return true;
   }
 
   bool

llarp/router.cpp

@@ -79,7 +79,9 @@ struct TryConnectJob
   Attempt()
   {
     --triesLeft;
-    link->TryEstablishTo(rc);
+    if(!link->TryEstablishTo(rc))
+      llarp::LogError("did not attempt connection to ", rc.pubkey,
+                      " and it has ", rc.addrs.size(), " advertised addresses");
   }
 
   bool