Socket: Move shutdown from SocketProtocol::close() to INetSocketProtocol::close()

Socket/Protocols/INet/TCPSocketProtocol.cc

@@ -79,7 +79,14 @@ prefix_ void senf::TCPSocketProtocol::shutdown(ShutType type)
     const
 {
     if (::shutdown(fd(), type) < 0)
-        SENF_THROW_SYSTEM_EXCEPTION("");
+        SENF_THROW_SYSTEM_EXCEPTION("::shutdown()");
+}
+
+prefix_ void senf::TCPSocketProtocol::close()
+    const
+{
+    shutdown(ShutRDWR);
+    INetSocketProtocol::close();
 }
 
 prefix_ unsigned senf::TCPSocketProtocol::available()

Socket/Protocols/INet/TCPSocketProtocol.hh

@@ -66,6 +66,7 @@ namespace senf {
         ///\name Abstract Interface Implementation
         ///@{
 
+        void close() const;
         unsigned available() const;
         bool eof() const;
 

Socket/SocketProtocol.cc

@@ -37,8 +37,6 @@
 prefix_ void senf::SocketProtocol::close()
     const
 {
-    if (::shutdown(body().fd(),SHUT_RDWR) < 0)
-        SENF_THROW_SYSTEM_EXCEPTION("::shutdown(socket_fd)");
     if (::close(body().fd()) < 0)
         SENF_THROW_SYSTEM_EXCEPTION("::close(socket_fd)");
 }