PIIODevice destructor fix

libs/main/io_devices/pisharedmemory.cpp

@@ -89,6 +89,12 @@ PISharedMemory::PISharedMemory(const PIString & shm_name, int size, PIIODevice::
 }
 
 
+PISharedMemory::~PISharedMemory() {
+	stop();
+	close();
+}
+
+
 bool PISharedMemory::openDevice() {
 	close();
 	//piCoutObj << "try open" << path() << dsize;