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of the va_list, so it's at least possible for another connector to know what the operation is and decide whether to implement it or not. Added a new VOL sub-class called "introspect" where callbacks that report information about the connector or container can be placed. Added an 'opt_query' callback to this sub-class, for a connector to report back to the library whether a particular optional callback operation is supported. Also added a 'get_conn_cls' introspection callback, to retrieve the H5VL_class_t of a connector (either the "current" connector, H5VL_GET_CONN_LVL_CURR, or the terminal connector, H5VL_GET_CONN_LVL_TERM). Moved the "post open" operation from a file 'specific' operation to a file 'optional' operation, now that it's possible to detect (with the 'opt_query' introspection callback) whether a VOL connector implements an optional operation, without just returning an error. Added new internal VOL helper routines: H5VL_object_is_native, to determine if an object is in (or is a) native file, and H5VL_file_is_same, to determine if two objects are in (or are) the same terminal VOL connector's container. (And moved the special handling for FILE_IS_EQUAL operation out of internal VOL callback routine into H5VL_file_is_same) Made new dataset 'get' operation for H5Dvlen_get_buf_size, aligning it better with other 'get' operations in API. Fixed several issues with pass-through connectors, which are now passing the 'make check-passthrough-vol' tests again. A bunch of warning and style cleanups as well.
HDF5 version 1.13.0 currently under development
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Please refer to the release_docs/INSTALL file for installation instructions.
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THE HDF GROUP
---------------
The HDF Group is the developer of HDF5®, a high-performance software library and
data format that has been adopted across multiple industries and has become a
de facto standard in scientific and research communities.
More information about The HDF Group, the HDF5 Community and the HDF5 software
project, tools and services can be found at the Group's website.
https://www.hdfgroup.org/
DOCUMENTATION
-------------
This release is fully functional for the API described in the documentation.
https://portal.hdfgroup.org/display/HDF5/The+HDF5+API
Full Documentation and Programming Resources for this release can be found at
https://portal.hdfgroup.org/display/HDF5
See the RELEASE.txt file in the release_docs/ directory for information specific
to the features and updates included in this release of the library.
Several more files are located within the release_docs/ directory with specific
details for several common platforms and configurations.
INSTALL - Start Here. General instructions for compiling and installing the library
INSTALL_CMAKE - instructions for building with CMake (Kitware.com)
INSTALL_parallel - instructions for building and configuring Parallel HDF5
INSTALL_Windows and INSTALL_Cygwin - MS Windows installations.
HELP AND SUPPORT
----------------
Information regarding Help Desk and Support services is available at
https://portal.hdfgroup.org/display/support/The+HDF+Help+Desk
FORUM and NEWS
--------------
The following public forums are provided for public announcements and discussions
of interest to the general HDF5 Community.
Homepage of the Forum
https://forum.hdfgroup.org
News and Announcement
https://forum.hdfgroup.org/c/news-and-announcements-from-the-hdf-group
HDF5 and HDF4 Topics
https://forum.hdfgroup.org/c/hdf5
These forums are provided as an open and public service for searching and reading.
Posting requires completing a simple registration and allows one to join in the
conversation. Please read the following instructions pertaining to the Forum's
use and configuration
https://forum.hdfgroup.org/t/quickstart-guide-welcome-to-the-new-hdf-forum
SNAPSHOTS, PREVIOUS RELEASES AND SOURCE CODE
--------------------------------------------
Periodically development code snapshots are provided at the following URL:
https://gamma.hdfgroup.org/ftp/pub/outgoing/hdf5/snapshots/
Source packages for current and previous releases are located at:
https://portal.hdfgroup.org/display/support/Downloads
Development code is available at our BitBucket Server:
https://bitbucket.hdfgroup.org/projects/HDFFV/repos/hdf5/browse