avoid regeneration of the SocketHandler when calling shutDown

src/header/MinimalSocket/core/Socket.h

@@ -89,7 +89,11 @@ class Socket {
    */
   bool isBlocking() const { return isBlocking_; }
 
-  void shutDown() { resetHandler(); }
+  /**
+   * @brief shutdown this socket. Any pending operation like blocking read or blocking client
+   * accept done from any other thread are consequently terminated.
+   */
+  void shutDown();
 
 protected:
   Socket();

src/src/SocketHandler.cpp

@@ -89,7 +89,13 @@ void close(SocketID &socket_id) {
 }
 } // namespace
 
-SocketHandler::~SocketHandler() { MinimalSocket::close(socket_id); }
+SocketHandler::~SocketHandler() { 
+  MinimalSocket::close(socket_id); 
+}
+
+void SocketHandler::shutDown() {
+  MinimalSocket::close(socket_id); 
+}
 
 void SocketHandler::reset(SocketID hndl) {
   if (socket_id != SCK_INVALID_SOCKET) {

src/src/SocketHandler.h

@@ -63,10 +63,12 @@ class SocketHandler {
   SocketHandler() = default;
 
   /**
-   * @brief close and shutdown the current socket
+   * @brief internally calls shut down
    */
   ~SocketHandler();
 
+  void shutDown();
+
   /**
    * @brief regenerates the socket descriptor, i.e. creates a new socket
    */

src/src/core/Socket.cpp

@@ -32,6 +32,8 @@ Socket::~Socket() = default;
 
 Socket::Socket() { resetHandler(); }
 
+void Socket::shutDown() { socket_id_wrapper->shutDown(); }
+
 int Socket::getSocketDescriptor() const {
   return static_cast<int>(getHandler().accessId());
 }