fixing a bug in strong store

store/strongstore/client.cc

@@ -175,9 +175,11 @@ Client::Prepare(uint64_t &ts)
         unique_lock<mutex> lk(cv_m);
 
         Debug("Sending request to TimeStampServer");
-        tss->Invoke("", bind(&Client::tssCallback, this,
-                             placeholders::_1,
-                             placeholders::_2));
+	transport.Timer(0, [=]() { 
+		tss->Invoke("", bind(&Client::tssCallback, this,
+				     placeholders::_1,
+				     placeholders::_2));
+	    });
         
         Debug("Waiting for TSS reply");
         cv.wait(lk);