jfjoch_writer: Reserve all metadata vectors when opening file

writer/HDF5DataFilePluginDetector.cpp

@@ -3,7 +3,17 @@
 
 #include "HDF5DataFilePluginDetector.h"
 
-void HDF5DataFilePluginDetector::OpenFile(HDF5File &in_data_file, const DataMessage &msg) {}
+void HDF5DataFilePluginDetector::OpenFile(HDF5File &in_data_file, const DataMessage &msg, size_t images_per_file) {
+    jf_info.reserve(images_per_file);
+    storage_cell.reserve(images_per_file);
+    receiver_aq_dev_delay.reserve(images_per_file);
+    receiver_free_buffers.reserve(images_per_file);
+    efficiency.reserve(images_per_file);
+    packets_received.reserve(images_per_file);
+    packets_expected.reserve(images_per_file);
+    pixel_sum.reserve(images_per_file);
+    processing_time.reserve(images_per_file);
+}
 
 void HDF5DataFilePluginDetector::Write(const DataMessage &msg, uint64_t image_number) {
     if (msg.jf_info.has_value())