24 Commits
Author SHA1 Message Date
vchoi-hdfgroup 3e023fa22d Fix Group/Link Info Status wording and undocumented defaults (#6616) (#6681)
Issue #6616: Group Info and Link Info are labeled Optional, but
new-style group creation always writes both, and the C library errors
reading a new-style group missing either one.

- Group Info / Link Info Status: Optional -> Required for "new style"
  groups; may not be repeated (matches existing Symbol Table wording
  for old-style groups).
- Documents the decoder's fallback values (8, 6) for Link Phase
  Change: Maximum Compact/Minimum Dense Value when absent.
2026-09-23 17:52:37 -07:00
vchoi-hdfgroup b3291056e0 Fix enum ASCII claim and compound Name copy-paste error in format spec (#6610) (#6680)
Issue #6610: the Enumeration datatype's Names field claimed member
names are ASCII, though the reference implementation doesn't enforce
encoding; and the Compound datatype's Name field description was
copy-pasted from the Opaque datatype section.

- Compound Datatype Name field (Versions 1, 2, 3): describes the
  member name instead of the opaque-type description.
- Enumeration Datatype Names field (Versions 1/2, 3): drops the ASCII
  claim; documents the actual constraint (no NUL byte within the
  name) and that other encodings, such as UTF-8, aren't rejected.
2026-09-23 17:52:00 -07:00
Neil Fortner 1d946c7028 Implement internally concurrent multithreading for chunk dataset I/O reads (#6645)
Added 3 new functions to support this: H5TSset_internal_threads(), H5Pset_io_threads(), and H5Pget_io_threads().

This feature internally parallelizes read operations on chunked datasets. H5TSset_internal_threads() is used to enable the feature globally, while H5Pset_io_threads() can be used to disable the feature on a per-operation basis. These functions are only available when the library is configured with HDF5_ENABLE_CONCURRENCY=ON. When performing an internally threaded read, the library will concurrently read from disk, unfilter, and scatter to memory all chunks in a read operation on a chunked dataset. Currently each of these sub-operations is serialized (protected by a mutex), so there is not yet likely to be any performance improvement.
2026-09-15 10:51:57 -05:00
vchoi-hdfgroup b816e1b699 Fix for issue #6336: (#6634)
Clarify object header chunk that is used in this section.
2026-08-25 09:02:32 -07:00
vchoi-hdfgroup 393410babb Fix issue #6605: (#6615)
--Fix overloaded N and inconsistent # indexing in V2 B-tree section
--Clean up Global Heap section as well.
2026-08-19 00:22:44 -07:00
vchoi-hdfgroup 18de4b4a1b Fix for issue #6483: fix undefined and inconsistent dimension indexing the format spec. (#6604) 2026-08-14 09:08:52 -07:00
vchoi-hdfgroup 972020e69f Document the Metadata Cache Image block and header message (#6595)
* Document the Metadata Cache Image block and header message

Adds docs/doxygen/dox/H5.format.4.0.dox coverage for:
- Level 1J: the Metadata Cache Image Block (subsec_fmt4_infra_mdci)
- IV.A.3.y: the Metadata Cache Image header message (0x0018)
- TOC/cross-reference entries and the superblock-extension list entry for both

Also clarifies the 'Size of Header Message #n Data' field description
for v1 and v2 object header messages to note it includes flags/reserved
(v1) or flags/creation-order (v2) fields, not just type and length.

* Address review feedback on MDCI message docs

- Clarify that the Metadata Cache Image message and its image block
  are only removed/reclaimed on the next file open when the file is
  opened for read/write access; read-only opens leave them unchanged.
- Fix a malformed table row (missing closing </td>) in the Status
  field of the IV.A.3.y message table.
2026-08-05 17:41:26 -05:00
jhendersonHDF 68a0a4b136 Fix minor doxygen issue on 2.x information page (#6582) 2026-07-30 14:26:20 -05:00
bmribler 2888f82e83 Add release page for 2.2.0 (#6578) 2026-07-29 15:41:21 -04:00
vchoi-hdfgroup a70cf36a45 One more fix related to issue #6391 - version 1 shared message encoding. (#6557) 2026-07-23 16:04:14 -05:00
Mark Kittisopikul f868f8dee3 Publish hdf5.tag alongside the Doxygen HTML documentation (#6542)
Generate the Doxygen tag file inside the html output directory
(hdf5lib_docs/html/hdf5.tag) instead of at the build root. The S3
documentation publishing (daily "latest", release zip, and
publish-release) all derive from the docs-doxygen artifact, which is
uploaded from the build-tree html directory. Placing the tag file there
makes it flow to every destination, e.g.
https://support.hdfgroup.org/documentation/hdf5/latest/hdf5.tag

Since the tag file now lives inside html/, the existing DIRECTORY install
already installs it to ${HDF5_INSTALL_DOC_DIR}/html/hdf5.tag, so the
redundant standalone install(FILES ...) is removed (it would otherwise
reference a file that no longer exists at the build root).
2026-07-21 08:18:29 -05:00
vchoi-hdfgroup f8844a64c6 Fixes for issue #6391: (#6538)
- The layout of the shared message encoding was actually decribed at the beginning of the section IV.A.2.
  For clarification, the section was split into two with one section purely for the shared message encoding
  and another section for the catalog of message types.
- Cross-linked shareable messages to the shared message encoding section.
- Misc. cleanup
2026-07-20 00:34:18 -05:00
Mark Kittisopikul c509b0a084 Install the hdf5.tag file to the html directory (#6535)
Moves the hdf5.tag file to ${HDF5_INSTALL_DOC_DIR}/html which defaults
to ${PREFIX}/share/html. The intention is to deploy the hdf5.tag file to https://support.hdfgroup.org/documentation/hdf5/latest/hdf5.tag
2026-07-17 22:53:57 -05:00
vchoi-hdfgroupandMatt L 64c1d15db9 Fix for issue #6416 (#6533)
* Fix for issue #6430: add decription for H5Tencode/H5Tdecode to Appendix.

* Fix for issue #6392:
The fix addressed part 1 of the issue.
No change is needed for part 2 of the issue: verify that the info is already there in the Driver Info Message.

* Fix for issue #6360

* Fix for issue #6416 in section III.I. Disk Format: Level 1I - Shared Object Header Message Table.

---------

Co-authored-by: Matt L <124107509+mattjala@users.noreply.github.com>
2026-07-17 01:56:01 -05:00
vchoi-hdfgroupandMatt L 90916b69f3 Fix for issue #6360 (#6520)
* Fix for issue #6430: add decription for H5Tencode/H5Tdecode to Appendix.

* Fix for issue #6392:
The fix addressed part 1 of the issue.
No change is needed for part 2 of the issue: verify that the info is already there in the Driver Info Message.

* Fix for issue #6360

---------

Co-authored-by: Matt L <124107509+mattjala@users.noreply.github.com>
2026-07-13 20:41:48 -05:00
vchoi-hdfgroup 1ac8f8ddf5 Fix for issue #6392 (#6516)
* Fix for issue #6430: add decription for H5Tencode/H5Tdecode to Appendix.

* Fix for issue #6392:
The fix addressed part 1 of the issue.
No change is needed for part 2 of the issue: verify that the info is already there in the Driver Info Message.
2026-07-09 20:53:30 -05:00
vchoi-hdfgroup cb1e18cbc4 Fix for issue #6430: add decription for H5Tencode/H5Tdecode to Appendix. (#6510) 2026-07-08 19:04:09 -05:00
vchoi-hdfgroupandH. Joe Lee ee8507bdb9 Fix for issue #6365 (#6469)
* Fixes for issues: #6448, #6449, #6444

* Fix for issue #6443.

* Fix for issue #6365.

* Fix spelling error.

* Modifications based on PR review comments.

* Correct spelling error.

* Replaced 3 duplicate field descriptions with cross-reference to the version 3 layout message.

* Refactor the description for the layout message regarding the dimension related fields.

---------

Co-authored-by: H. Joe Lee <hyoklee@hdfgroup.org>
2026-06-26 11:26:10 -05:00
vchoi-hdfgroupandH. Joe Lee 6047aa5633 docs: fix for issue #6443 (#6464)
* Fixes for issues: #6448, #6449, #6444

* Fix for issue #6443.

---------

Co-authored-by: H. Joe Lee <hyoklee@hdfgroup.org>
2026-06-19 09:30:35 -05:00
vchoi-hdfgroup c7296baf96 Fixes for issues: #6448, #6449, #6444 (#6455) 2026-06-17 11:35:56 -05:00
Larry Knox 4606f0e770 Address problem links (#6387)
* Replace link in Glossary.dox with added Chessboard.svg file.

* Exclude checking links on server "web.cels.anl.gov" that rejects
automated link checker.
2026-04-30 22:34:43 -05:00
Kazuyoshi FurutakaandKazuyoshi Furutaka d7f7e81567 To match the values in Table 1 to those of the original pdf. (#6381)
The value for File_with_compression.h5 should read `345 seconds`
instead of `0.37 seconds`.

Co-authored-by: Kazuyoshi Furutaka (work) <furutaka.kazuyoshi@jaea.go.jp>
2026-04-26 02:19:24 -04:00
H. Joe Lee a30e46e252 docs: add string type glossary description (#6337)
close #6285
2026-04-03 20:35:29 -05:00
Scot Breitenfeld 05676d1abe Consolidate documentation under docs/ directory (#6310)
* Consolidate documentation under doc/ directory

Move user-facing guides from release_docs/ and doxygen/ into a single
doc/ root. release_docs/ now holds only release artifacts (changelogs,
history, release process, maintainer info).

- git mv release_docs/INSTALL*.md, USING_*.md, README_HPC.md,
  BuildSystemNotes.md, AutotoolsToCMakeOptions.md,
  HDF5_Library_2.0.0_Migration_Guide.md → doc/
- git mv doxygen/ → doc/doxygen/
- Update CMakeLists.txt: HDF5_DOXYGEN_DIR and add_subdirectory path
- Update CMakeInstallation.cmake: all install paths for moved files
- Update bin/make_vers: hardcoded doxygen/ path substitution
- Update doc/doxygen/CMakeLists.txt: EXAMPLES_DIRECTORY and comments
- Update README.md, CONTRIBUTING.md, SECURITY.md, config/README.md,
  release_docs/RELEASE_PROCESS.md: links to moved files
- Update doxygen .dox files: release_docs/ URLs for moved guides
- Rewrite release_docs/README.md for narrowed scope

* Add HDF5_DOCS_DIR variable for doc/ root path

Introduce HDF5_DOCS_DIR = \${HDF5_SOURCE_DIR}/doc so that
CMakeInstallation.cmake and future callers reference the doc/
directory symbolically rather than by hardcoded path.
HDF5_DOXYGEN_DIR is now derived from HDF5_DOCS_DIR.
2026-03-31 17:01:54 -06:00