From 5ebeb20641c1e6fb3f855d2d68ee7e13d7f0f4e6 Mon Sep 17 00:00:00 2001
From: Andrej Babic <andrej.babic@psi.ch>
Date: Wed, 5 Dec 2018 18:02:49 +0100
Subject: [PATCH] Resize only chunked datasets

---
 lib/src/H5Format.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/lib/src/H5Format.cpp b/lib/src/H5Format.cpp
index f862fc8..c3cc717 100644
--- a/lib/src/H5Format.cpp
+++ b/lib/src/H5Format.cpp
@@ -36,6 +36,17 @@ hsize_t H5FormatUtils::expand_dataset(H5::DataSet& dataset, hsize_t frame_index,
 
 void H5FormatUtils::compact_dataset(H5::DataSet& dataset, hsize_t max_frame_index)
 {
+    // Only chunked datasets can be resized.
+    if (H5D_CHUNKED != dataset.getCreatePlist().getLayout()) {
+        #ifdef DEBUG_OUTPUT
+            using namespace date;
+            cout << "[" << std::chrono::system_clock::now() << "]";
+            cout << "[H5FormatUtils::compact_dataset] Not compact a contiguous dataset." << endl;
+        #endif
+
+        return;
+    }
+
     const auto& data_space = dataset.getSpace();
 
     int dataset_rank = data_space.getSimpleExtentNdims();