Check for empty queue in MessageQueue::pop() method

Return bool value from MessageQueue::pop() method that shows
if pop operation was successful. Add default constructors to all
classes used as message for message queue.

Closes-bug: APPLINK-14928

1 files changed, 5 insertions, 1 deletions

diff --git a/src/components/media_manager/src/streamer_adapter.cc b/src/components/media_manager/src/streamer_adapter.cc
index ef128a4417..3246744ba9 100644
--- a/src/components/media_manager/src/streamer_adapter.cc
+++ b/src/components/media_manager/src/streamer_adapter.cc
@@ -131,7 +131,11 @@ void StreamerAdapter::Streamer::threadMain() {
   while (!stop_flag_) {
     adapter_->messages_.wait();
     while (!adapter_->messages_.empty()) {
-      protocol_handler::RawMessagePtr msg = adapter_->messages_.pop();
+      protocol_handler::RawMessagePtr msg;
+      if (!adapter_->messages_.pop(msg)) {
+        LOG4CXX_ERROR(logger, "Empty message queue");
+        continue;
+      }
       if (!msg) {
         LOG4CXX_ERROR(logger, "Null pointer message");
         continue;