From 954d89ce7bdf402cae6a0b1991823e330ce053e0 Mon Sep 17 00:00:00 2001
From: Andrej Babic <andrej.babic@psi.ch>
Date: Tue, 21 Apr 2020 22:33:21 +0200
Subject: [PATCH] Reordered struct for better binary transfer

---
 core-writer/include/RingBuffer.hpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/core-writer/include/RingBuffer.hpp b/core-writer/include/RingBuffer.hpp
index e4bf438..0f45edd 100644
--- a/core-writer/include/RingBuffer.hpp
+++ b/core-writer/include/RingBuffer.hpp
@@ -12,10 +12,12 @@
 #include <chrono>
 #include "date.h"
 
+#pragma pack(push)
+#pragma pack(1)
 struct FileBufferMetadata {
     // Needed by RingBuffer
-    size_t buffer_slot_index;
-    const size_t frame_bytes_size = 2*512*1024*1000;
+    const uint64_t frame_bytes_size = 2*512*1024*1000;
+    uint64_t buffer_slot_index;
 
     uint64_t start_pulse_id;
     uint64_t stop_pulse_id;
@@ -26,6 +28,7 @@ struct FileBufferMetadata {
     uint32_t daq_rec[1000];
     uint16_t n_received_packets[1000];
 };
+#pragma pack(pop)
 
 struct FrameMetadata
 {