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authorLarry Knox <lrknox@hdfgroup.org>2017-06-07 17:11:56 (GMT)
committerLarry Knox <lrknox@hdfgroup.org>2017-06-07 17:11:56 (GMT)
commiteec0669da6c6abcfa01a908ef698a562d6af47a3 (patch)
treef09c855d8110b3d0e59b3e3332e99ed4616ff261
parentfc2c37e49c644b49da728d45e16541c9f3ba4983 (diff)
parent53d919ccb2e15df4b34dd38e26eca4174cb74fe1 (diff)
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Merge pull request #569 in HDFFV/hdf5 from ~LRKNOX/hdf5_lrk:hdf5_1_8_19 to hdf5_1_8_19
* commit '53d919ccb2e15df4b34dd38e26eca4174cb74fe1': Add RELEASE.txt entry for H5Dget_chunk_size.
-rw-r--r--release_docs/RELEASE.txt23
1 files changed, 19 insertions, 4 deletions
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt
index 3c9e533..d9016a1 100644
--- a/release_docs/RELEASE.txt
+++ b/release_docs/RELEASE.txt
@@ -89,6 +89,17 @@ New Features
(ADB - 2017/04/04, HDFFV-10143)
+ - H5Dget_chunk_storage_size
+
+ The storage size of a chunk in the file is needed to determine the size
+ of the buffer to be allocated for reading a chunk directly from a file.
+
+ New API function gets the size in bytes currently allocated within a
+ file for a raw data chunk in a dataset. This function was added to get
+ the chunk size in support of the implementation of H5DOread_chunks, but
+ may also be useful for other purposes.
+
+ (VC - 2017/05/02, HDFFV-9934)
C++ API
-------
@@ -132,11 +143,15 @@ New Features
High-Level APIs
---------------
- H5DOread_chunk
+
+ Users wanted to read compressed data directly from a file without any
+ processing by the HDF5 data transfer pipeline, just as they were able
+ to write it directly to a file with H5DOwrite_chunk.
- New API function, H5DOread_chunk, corresponding to existing function
- H5DOwrite_chunk. H5DOread_chunk reads a raw data chunk directly from a
- chunked dataset in the file into the application buffer, bypassing the
- library’s internal data transfer pipeline, including filters.
+ New API function, corresponding to existing function H5DOwrite_chunk.
+ H5DOread_chunk reads a raw data chunk directly from a chunked dataset
+ in the file into the application buffer, bypassing the library’s internal
+ data transfer pipeline, including filters.
(VC - 2017/05/02, HDFFV-9934)