JFJochReceiver: add safety for overruninng the buffer

receiver/JFJochReceiver.cpp

@@ -463,6 +463,9 @@ int64_t JFJochReceiver::FrameTransformationThread() {
                 if (push_images_to_writer) {
                     PrepareCBORImage(message, experiment, nullptr, 0);
                     serializer.SerializeImage(message);
+                    if (serializer.GetRemainingBuffer() < experiment.GetMaxCompressedSize())
+                        throw JFJochException(JFJochExceptionCategory::ArrayOutOfBounds,
+                                              "Not enough memory to save image");
                     size_t image_size = transformation.SaveCompressedImage(serializer.GetImageAppendLocation());
                     serializer.AppendImage(image_size);
                     image_pusher.SendImage(const_cast<uint8_t *>(serializer.GetBuffer()), serializer.GetBufferSize(),

receiver/JFJochReceiver.h

@@ -88,7 +88,8 @@ class JFJochReceiver {
     int64_t max_image_number_sent = 0;
     std::mutex max_image_number_sent_mutex;
 
-    const size_t serializer_buffer_size = experiment.GetMaxCompressedSize() + 1024*1024; // max compressed size + 1 MiB
+    const size_t serializer_buffer_size = experiment.GetMaxCompressedSize() + 1024*1024;
+    // max compressed size + 1 MiB reserve for spots and rad. integration results
 
     void PinThreadToDevice(uint16_t data_stream);
     void PrepareConversionOnCPU();