Framework: add async logger stop when shutdown

cyber/init.cc

@@ -111,6 +111,12 @@ void CheckSingleton() {
   CHECK_NOTNULL(TaskManager::Instance());
   CHECK_NOTNULL(PerfEventCache::Instance());
 }
+
+void StopLogger() {
+  if (async_logger != nullptr) {
+    async_logger->Stop();
+  }
+}
 }  // namespace
 
 void OnShutdown(int sig) {
@@ -157,6 +163,7 @@ void Shutdown() {
   scheduler::Scheduler::Instance()->ShutDown();
   service_discovery::TopologyManager::Instance()->Shutdown();
   transport::Transport::Instance()->Shutdown();
+  StopLogger();
   SetState(STATE_SHUTDOWN);
 }
 

cyber/logger/async_logger.cc

@@ -71,9 +71,6 @@ void AsyncLogger::Stop() {
 
 void AsyncLogger::Write(bool force_flush, time_t timestamp, const char* message,
                         int message_len) {
-  if (unlikely(message_len <= 0)) {
-    return;
-  }
   // drop message when acitve buffer is full
   if (unlikely(BufferFull(*active_buf_))) {
     return;

cyber/logger/logger.cc

@@ -43,9 +43,6 @@ Logger::~Logger() {
 
 void Logger::Write(bool force_flush, time_t timestamp, const char* message,
                    int message_len) {
-  if (unlikely(message_len <= 0)) {
-    return;
-  }
   std::string log_message = std::string(message, message_len);
   std::string module_name;
   // set the same bracket as the bracket in log.h