ADD: Message container and Join Message

src/WHISPER/threadSafeQueue.cpp

@@ -0,0 +1,60 @@
+/*
+* This Source Code Form is subject to the terms of the Mozilla Public
+* License, v. 2.0. If a copy of the MPL was not distributed with this
+* file, You can obtain one at https://mozilla.org/MPL/2.0/.
+*/
+
+/**
+* @file BasicMessageQueue.cpp
+* @brief class which encapsulates queue
+* @author Christina Sander <christina.sander@hsu-hh.de>
+* @date   25.06.2020
+* @copyright MPLv2
+*/
+#include <WHISPER/threadSafeQueue.hpp>
+#include <iostream>
+#include <string>
+
+template<class T>
+WHISPER::threadSafeQueue<T> threadSafeQueue(){
+        
+}
+
+
+
+// appends the given message to the message queue
+template<class T>
+void WHISPER::threadSafeQueue< T>::addElement(std::unique_ptr<T> elem) 
+{
+  std::unique_lock<std::mutex> lk(mx);
+  q.push( std::move(elem) );
+  lk.unlock();
+  condVar.notify_one();
+}
+
+// gets a message from the queue
+template<class T>
+std::unique_ptr<T> WHISPER::threadSafeQueue<T>::getElement()
+{
+  std::unique_lock<std::mutex> lk(mx);
+  if( 0 == q.size() )
+  {
+    lk.unlock();
+    throw std::length_error("Empty Queue\n");
+  }
+  std::unique_ptr<std::string> elem = std::move( q.front() );
+  q.pop();
+  lk.unlock();
+  return std::move(elem);
+}
+
+
+//returns the size of the message queue
+template<class T>
+unsigned int WHISPER::threadSafeQueue<T>::size()
+{
+  std::unique_lock<std::mutex> lk(mx);
+  unsigned int size = q.size();
+  lk.unlock();
+  return size;
+}