* Added support for vector I/O calls to the VFD layer, and
associated test code. Note that this includes the optimization
to allow shortened sizes and types arrays to allow more space
efficient representations of vectors in which all entries are
of the same size and/or type. See the Selection I/o RFC for
further details.
Tested serial and parallel, debug and production on Charis.
serial and parallel debug only on Jelly.
* ran code formatter
quick serial build and test on jelly
* Add H5FD_read_selection() and H5FD_write_selection(). Currently only
translate to scalar calls. Fix const buf in H5FD_write_vector().
* Format source
* Fix comments
* Add selection I/O to chunk code, used when: not using chunk cache, no
datatype conversion, no I/O filters, no page buffer, not using collective
I/O. Requires global variable H5_use_selection_io_g be set to TRUE.
Implemented selection to vector I/O transaltion at the file driver
layer.
* Fix formatting unrelated to previous change to stop github from
complaining.
* Add full API support for selection I/O. Add tests for this.
* Implement selection I/O for contiguous datasets. Fix bug in selection
I/O translation. Add const qualifiers to some internal selection I/O
routines to maintain const-correctness while avoiding memcpys.
* Added vector read / write support to the MPIO VFD, with associated
test code (see testpar/t_vfd.c).
Note that this implementation does NOT support vector entries of
size greater than 2 GB. This must be repaired before release,
but it should be good enough for correctness testing.
As MPIO requires vector I/O requests to be sorted in increasing
address order, also added a vector sort utility in H5FDint.c This
function is tested in passing by the MPIO vector I/O extension.
In passing, repaired a bug in size / type vector extension management
in H5FD_read/write_vector()
Tested parallel debug and production on charis and Jelly.
* Ran source code formatter
* Add support for independent parallel I/O with selection I/O. Add
HDF5_USE_SELECTION_IO env var to control selection I/O (default off).
* Implement parallel collective support for selection I/O.
* Fix comments and run formatter.
* Update selection IO branch with develop (#1215)
Merged branch 'develop' into selection_io
* Sync with develop (#1262)
Updated the branch with develop changes.
* Implement big I/O support for vector I/O requests in the MPIO file
driver.
* Free arrays in H5FD__mpio_read/write_vector() as soon as they're not
needed, to cut down on memory usage during I/O.
* Address comments from code review. Fix const warnings with
H5S_SEL_ITER_INIT().
* Committing clang-format changes
* Feature/subfiling (#1464)
* Initial checkin of merged sub-filing VFD.
Passes regression tests (debug/shared/paralle) on Jelly.
However, bugs and many compiler warnings remain -- not suitable
for merge to develop.
* Minor mods to src/H5FDsubfile_mpi.c to address errors reported by autogen.sh
* Code formatting run -- no test
* Merged my subfiling code fixes into the new selection_io_branch
* Forgot to add the FindMERCURY.cmake file. This will probably disappear soon
* attempting to make a more reliable subfile file open which doesn't return errors. For some unknown reason, the regular posix open will occasionally fail to create a subfile. Some better error handling for file close has been added.
* added NULL option for H5FD_subfiling_config_t in H5Pset_fapl_subfiling (#1034)
* NULL option automatically stacks IOC VFD for subfiling and returns a valid fapl.
* added doxygen subfiling APIs
* Various fixes which allow the IOR benchmark to run correctly
* Lots of updates including the packaging up of the mercury_util source files to enable easier builds for our Benchmarking
* Interim checkin of selection_io_with_subfiling_vfd branch
Moddified testpar/t_vfd.c to test the subfiling vfd with default configuration.
Must update this code to run with a variety of configurations -- most particularly
multiple IO concentrators, and stripe depth small enough to test the other IO
concentrators.
testpar/t_vfd.c exposed a large number of race condidtions -- symtoms included:
1) Crashes (usually seg faults)
2) Heap corruption
3) Stack corruption
4) Double frees of heap space
5) Hangs
6) Out of order execution of I/O requests / violations of POSIX semantics
7) Swapped write requests
Items 1 - 4 turned out to be primarily caused by file close issues --
specifically, the main I/O concentrator thread and its pool of worker threads
were not being shut down properly on file close. Addressing this issue in
combination with some other minor fixes seems to have addressed these issues.
Items 5 & 6 appear to have been caused by issue of I/O requests to the
thread pool in an order that did not maintain POSIX semantics. A rewrite of
the I/O request dispatch code appears to have solved these issues.
Item 7 seems to have been caused by multiple write requests from a given
rank being read by the wrong worker thread. Code to issue "unique" tags for
each write request via the ACK message appears to have cleaned this up.
Note that the code is still in poor condtition. A partial list of known
defects includes:
a) Race condiditon on file close that allows superblock writes to arrive
at the I/O concentrator after it has been shutdown. This defect is
most evident when testpar/t_subfiling_vfd is run with 8 ranks.
b) No error reporting from I/O concentrators -- must design and implement
this. For now, mostly just asserts, which suggests that it should be
run in debug mode.
c) Much commented out and/or un-used code.
d) Code orgnaization
e) Build system with bits of Mercury is awkward -- think of shifting
to pthreads with our own thread pool code.
f) Need to add native support for vector and selection I/O to the subfiling
VFD.
g) Need to review, and posibly rework configuration code.
h) Need to store subfile configuration data in a superblock extension message,
and add code to use this data on file open.
i) Test code is inadequate -- expect more issues as it is extended.
In particular, there is no unit test code for the I/O request dispatch code.
While I think it is correct at present, we need test code to verify this.
Similarly, we need to test with multiple I/O concentrators and much smaller
stripe depth.
My actual code changes were limited to:
src/H5FDioc.c
src/H5FDioc_threads.c
src/H5FDsubfile_int.c
src/H5FDsubfile_mpi.c
src/H5FDsubfiling.c
src/H5FDsubfiling.h
src/H5FDsubfiling_priv.h
testpar/t_subfiling_vfd.c
testpar/t_vfd.c
I'm not sure what is going on with the deletions in src/mercury/src/util.
Tested parallel/debug on Charis and Jelly
* subfiling with selection IO (#1219)
Merged branch 'selection_io' into subfiling branch.
* Subfile name fixes (#1250)
* fixed subfiling naming convention, and added leading zero to rank names.
* Merge branch 'selection_io' into selection_io_with_subfiling_vfd (#1265)
* Added script to join subfiles into a single HDF5 file (#1350)
* Modified H5FD__subfiling_query() to report that the sub-filing VFD supports MPI
This exposed issues with truncate and get EOF in the sub-filing VFD.
I believe I have addressed these issues (get EOF not as fully tested as it should be), howeer,
it exposed race conditions resulting in hangs. As of this writing, I have not been able
to chase these down.
Note that the tests that expose these race conditions are in testpar/t_subfiling_vfd.c, and
are currently skipped. Unskip these tests to reproduce the race conditions.
tested (to the extent possible) debug/parallel on charis and jelly.
* Committing clang-format changes
* fixed H5MM_free
Co-authored-by: mainzer <mainzer#hdfgroup.org>
Co-authored-by: jrmainzer <72230804+jrmainzer@users.noreply.github.com>
Co-authored-by: Richard Warren <Richard.Warren@hdfgroup.org>
Co-authored-by: Richard.Warren <richard.warren@jelly.ad.hdfgroup.org>
Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
* Move Subfiling VFD components into H5FDsubfiling source directory
* Update Autotools build and add H5_HAVE_SUBFILING_VFD macro to H5pubconf.h
* Tidy up CMake build of subfiling sources
* Merge branch 'develop' into feature/subfiling (#1539)
Merge branch 'develop' into feature/subfiling
* Add VFD interface version field to Subfiling and IOC VFDs
* Merge branch 'develop' into feature/subfiling (#1557)
Merge branch 'develop' into feature/subfiling
* Merge branch 'develop' into feature/subfiling (#1563)
Merge branch 'develop' into feature/subfiling
* Tidy up merge artifacts after rebase on develop
* Fix incorrect variable in mirror VFD utils CMake
* Ensure VFD values are always defined
* Add subfiling to CMake VFD_LIST if built
* Mark MPI I/O driver self-initialization global as static
* Add Subfiling VFD to predefined VFDs for HDF5_DRIVER env. variable
* Initial progress towards separating private vs. public subfiling code
* include libgen.h in t_vfd tests for correct dirname/basename
* Committing clang-format changes
* removed mercury option, included subfiling header path (#1577)
Added subfiling status to configure output, installed h5fuse.sh to build directory for use in future tests.
* added check for stdatomic.h (#1578)
* added check for stdatomic.h with subfiling
* added H5_HAVE_SUBFILING_VFD for cmake
* fix old-style-definition warning (#1582)
* fix old-style-definition warning
* added test for enable parallel with subfiling VFD (#1586)
Fails if subfiling VFD is not used with parallel support.
* Subfiling/IOC VFD fixes and tidying (#1619)
* Rename CMake option for Subfiling VFD to be consistent with other VFDs
* Miscellaneous Subfiling fixes
Add error message for unset MPI communicator
Support dynamic loading of subfiling VFD with default configuration
* Temporary fix for subfile name issue
* Added subfile checks (#1634)
* added subfile checks
* Feature/subfiling (#1655)
* Subfiling/IOC VFD cleanup
Fix misuse of MPI_COMM_WORLD in IOC VFD
Propagate Subfiling FAPL MPI settings down to IOC FAPL in default
configuration case
Cleanup IOC VFD debugging code
Change sprintf to snprintf in a few places
* Major work on separating Subfiling and IOC VFDs from each other
* Re-write async_completion func to not overuse stack
* Replace usage of MPI_COMM_WORLD with file's actual MPI communicator
* Refactor H5FDsubfile_mpi.c
* Remove empty file H5FDsubfile_mpi.c
* Separate IOC VFD errors to its own error stack
* Committing clang-format changes
* Remove H5TRACE macros from H5FDioc.c
* Integrate H5FDioc_threads.c with IOC error stack
* Fix for subfile name generation
Use number of I/O concentrators from existing subfiling configuration file, if one exists
* Add temporary barrier in "Get EOF" operation to prevent races on EOF
Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
* Fix for retrieval of machine Host ID
* Default to MPI_COMM_WORLD if no MPI params set
* added libs rt and pthreads (#1673)
* added libs rt and pthreads
* Feature/subfiling (#1689)
* More tidying of IOC VFD and subfiling debug code
* Remove old unused log file code
* Clear FID from active file map on failure
* Fix bug in generation of subfile names when truncating file
* Change subfile names to start from 1 instead of 0
* Use long long for user-specified stripe size from environment variable
* Skip 0-sized I/Os in low-level IOC I/O routines
* Don't update EOF on read
* Convert printed warning about data size mismatch to assertion
* Don't add base file address to I/O addresses twice
Base address should already be applied as part of H5FDwrite/read_vector calls
* Account for 0-sized I/O vector entries in subfile write/read functions
* Rewrite init_indep_io for clarity
* Correction for IOC wraparound calculations
* Some corrections to iovec calculations
* Remove temporary barrier on EOF retrieval
* Complete work request queue entry on error instead of skipping over
* Account for stripe size wraparound for sf_col_offset calculation
* Committing clang-format changes
Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
* Re-write and fix bugs in I/O vector filling routines (#1703)
* Rewrite I/O vector filling routines for clarity
* Fix bug with iovec_fill_last when last I/O size is 0
* added subfiling_dir line read (#1714)
* added subfiling_dir line read and use it
* shellcheck fixes
* I/O request dispatch logic update (#1731)
Short-circuit I/O request dispatch when head of I/O queue is an
in-progress get EOF or truncate operation. This prevents an issue where
a write operation can be dispatched alongside a get EOF/truncate
operation, whereas all I/O requests are supposed to be ineligible for
dispatch until the get EOF/truncate is completed
* h5fuse.sh.in clean-up (#1757)
* Added command-line options
* Committing clang-format changes
* Align with changes from develop
* Mimic MPI I/O VFD for EOF handling
* Initialize context_id field for work request objects
* Use logfile for some debugging information
* Use atomic store to set IOC ready flag
* Use separate communicator for sending file EOF data
Minor IOC cleanup
* Use H5_subfile_fid_to_context to get context ID for file in Subfiling
VFD
* IOVEC calculation fixes
* Updates for debugging code
* Minor fixes for threaded code
* Committing clang-format changes
* Use separate MPI communicator for barrier operations
* Committing clang-format changes
* Rewrite EOF routine to use nonblocking MPI communication
* Committing clang-format changes
* Always dispatch I/O work requests in IOC main loop
* Return distinct MPI communicator to library when requested
* Minor warning cleanup
* Committing clang-format changes
* Generate h5fuse.sh from h5fuse.sh.in in CMake
* Send truncate messages to correct IOC rank
* Committing clang-format changes
* Miscellaneous cleanup
Post some MPI receives before sends
Free some duplicated MPI communicator/Info objects
Remove unnecessary extra MPI_Barrier
* Warning cleanup
* Fix for leaked MPI communicator
* Retrieve file EOF on single rank and bcast it
* Fixes for a few failure paths
* Cleanup of IOC file opens
* Committing clang-format changes
* Use plan MPI_Send for send of EOF messages
* Always check MPI thread support level during Subfiling init
* Committing clang-format changes
* Handle a hang on failure when IOCs can't open subfiles
* Committing clang-format changes
* Refactor file open status consensus check
* Committing clang-format changes
* Fix for MPI_Comm_free being called after MPI_Finalize
* Fix VFD test by setting MPI params before setting subfiling on FAPL
* Update Subfiling VFD error handling and error stack usage
* Improvements for Subfiling logfiles
* Remove prototypes for currently unused routines
* Disable I/O queue stat collecting by default
* Remove unused serialization mutex variable
* Update VFD testing to take subfiling VFD into account
* Fix usage of global subfiling application layout object
* Minor fixes for failure pathways
* Keep track of the number of failures in an IOC I/O queue
* Make sure not to exceed MPI_TAG_UB value for data communication messages
* Committing clang-format changes
* Update for rename of some H5FD 'ctl' opcodes
* Always include Subfiling's public header files in hdf5.h
* Remove old unused code and comments
* Implement support for per-file I/O queues
Allows the subfiling VFD to have multiple HDF5 files open simultaneously
* Use simple MPI_Iprobe over unnecessary MPI_Improbe
* Committing clang-format changes
* Update HDF5 testing to query driver for H5FD_FEAT_DEFAULT_VFD_COMPATIBLE
flag
* Fix a few bugs related to file multi-opens
* Avoid calling MPI routines if subfiling gets reinitialized
* Fix issue when files are closed in a random order
* Update HDF5 testing to query VFD for "using MPI" feature flag
* Register atexit handler in subfiling VFD to call MPI_Finalize after HDF5
closes
* Fail for collective I/O requests until support is implemented
* Correct VOL test function prototypes
* Minor cleanup of old code and comments
* Update mercury dependency
* Cleanup of subfiling configuration structure
* Committing clang-format changes
* Build system updates for Subfiling VFD
* Fix possible hang on failure in t_vfd tests caused by mismatched
MPI_Barrier calls
* Copy subfiling IOC fapl in "fapl get" method
* Mirror subfiling superblock writes to stub file for legacy POSIX-y HDF5
applications
* Allow collective I/O for MPI_BYTE types and rank 0 bcast strategy
* Committing clang-format changes
* Use different scheme for subfiling write message MPI tag calculations
* Committing clang-format changes
* Avoid performing fstat calls on all MPI ranks
* Add MPI_Barrier before finalizing IOC threads
* Use try_lock in I/O queue dispatch to minimize contention from worker threads
* Use simple Waitall for nonblocking I/O waits
* Add configurable IOC main thread delay and try_lock option to I/O queue dispatch
* Fix bug that could cause serialization of non-overlapping I/O requests
* Temporarily treat collective subfiling vector I/O calls as independent
* Removed unused mercury bits
* Add stubs for subfiling and IOC file delete callback
* Update VFD testing for Subfiling VFD
* Work around HDF5 metadata cache bug for Subfiling VFD when MPI Comm size
= 1
* Committing clang-format changes
Co-authored-by: mainzer <mainzer#hdfgroup.org>
Co-authored-by: Neil Fortner <nfortne2@hdfgroup.org>
Co-authored-by: Scot Breitenfeld <brtnfld@hdfgroup.org>
Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: jrmainzer <72230804+jrmainzer@users.noreply.github.com>
Co-authored-by: Richard Warren <Richard.Warren@hdfgroup.org>
Co-authored-by: Richard.Warren <richard.warren@jelly.ad.hdfgroup.org>
* Minor clang warning fixes in src and test
* Fixes clang warnings in high-level library
* clang format-nonliteral warning fixes
* Committing clang-format changes
* Fixed int -> float clang cast warnings in h5diff
* Quiets some warnings in flex/bison generated code
* Suppress overlong string warning for libinfo on clang
Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
* H5Lexists docs: Removed reference to 1.8.16 since the change is the 1.8.x releases, HDFFV-11289
* H5Oget_info_by_name, name can be any object, not just a group
* Converted README.txt to README.md and updated files referring to README.txt to README.md.
* removed references to README.txt
* updated MANIFEST
* Take a stab at using constructors to initialize instead of
function-entry macros. This is a work in progress. It's good enough to
run `many_dsets`.
* Committing clang-format changes
* Add the `many_dsets` benchmark and some scripts I used on jelly for
setting up the build/test environment and for recording/flame-graphing
profiles.
* Committing clang-format changes
* Change my Makefile and environment script to work both on jelly
and on mayll (and probably on Summit).
* Disable clang-format "fix."
* Replace the `if (!H5_TERM_GLOBAL)` test in each FUNC_ENTER_ macro with
`if (true)`.
* Fix bad grammar in a comment.
* Instead of labeling the H5*__init_package routines constructors, fold
each into an initialization routine, H5*_init(), and call each of
the H5*_init() routines. Call most of the H5*_init() routines from
H5_init_library() in an explicit order that I found out earlier by
instrumenting each __init_package routine and running the library
tests. Roll H5FD*__init_package routines into H5FD*_init() routines.
This change ends just-in-time initialization of package dependencies by
package initializers.
Don't track in per-package variables (H5_PKG_INIT_VAR) whether each
package has been initialized. Instead, track in a single library
variable whether the whole library is initialized or not.
Drive the initialization of packages by H5_init_library() with a table
of initializer routines. Also drive the termination of packages by
H5_term_library() with a table.
Perform initialization as needed from FUNC_ENTER_API_INIT(err). This
basically restores the old behavior of that macro.
Delete a bunch of #definitions in H5private.h that have fallen out of
use with these changes.
* Committing clang-format changes
* Undo the bad auto-formatting that appears to have occurred in spite
of my disabling it. Bracket some code in /* clang-format off */ /*
clang-format on */ to prevent a recurrence.
* Remove a diagnostic abort().
* Fix a logic error: print a comma between every package terminator run,
and don't print an initial comma.
* Complete the changes I started in H5_term_library() that undo the bad
auto-formatting.
Stop tracking whether package "tops" were initialized in per-package
variables H5*_top_package_initialize_s. H5_term_library() takes care of
that for them.
Remove H5R_top_term_package() and H5R_term_package(), they don't do
anything.
* Committing clang-format changes
* NFCI. Simplify macro text: replace `if (true) {` with `{`.
* Fix formatting and suppress clang-format on a longer range.
* Quiet some unused label, unused variable complaints that cropped up
after I simplified the FUNC_ENTER_ macros for the sake of performance.
* Committing clang-format changes
* Delete some programs and scripts that don't belong in the pull request.
* Use the right function-entry macro.
* Use a sensible format and disable auto-formatting.
* Stop calling do-nothing initializer H5FS_init(). Delete it.
* Document what changes to make if the default VFD changes.
* While I am here, change an `await_prior` flag on the terminator table
to `true` to match the previous, non-table-driven code that was here.
Found the oversight making the following changes:
NFCI: insert an empty line and copy over slightly-edited comments from
the previous version, where those comments still correctly explained how
library termination operated.
* NFCI: lower a staircase.
* Replace every occurrence of FUNC_ENTER_NOAPI_INIT(...) with H5_PUSH_FUNC
since that is all that that macro does any more.
Quiet a bunch of new warnings by changing FUNC_ENTER_NOAPI(...) to
FUNC_ENTER_NOAPI_NOERR and removing disused `done:` labels.
* NFCI: add curly braces around a multiline statement.
* Quiet a signed/unsigned comparison warning.
* Add some documentation about library initialization and shutdown.
* Make sure that the library is initialized, or else that initialization
is already underway, before performing any VFD's initialization.
* Committing clang-format changes
* Committing clang-format changes
* Reduce differences from `develop` branch.
* Always initialize `tot_init`.
* Committing clang-format changes
* Fix typo: H5SL_init initializes skip lists, not VOL.
* Remove H5_TERM_GLOBAL test in H5T_init. H5T_init was unusual in that
it tested H5_TERM_GLOBAL and exited early if it was set. No other
module initializers did that, and I cannot find any reason that should
be necessary. Tests still pass when I remove it, so away it goes.
* Use HD prefix.
* Add function header comments.
* Drop the intermediate variable, it's only used once.
* Extract subroutine `H5FDperform_init(hid_t (*init)(void))` that
initializes the library, if necessary, before calling its VFD-initializer
argument. Use H5FDperform_init in the definition of the symbols
H5FD_<vfd> (e.g., H5FD_SEC2), which may be evaluated before the library
is initialized, like so:
```
```
I implement H5FDperform_init in its own source file, H5FDperform.c,
and exclude that file from trace processing because the `bin/trace`
cannot deal with the function-pointer type.
* Straggler from last: add new source file src/H5FDperform.c.
* Committing clang-format changes
* Add a missing file to the MANIFEST.
* Switch to FUNC_ENTER_API_NOINIT in H5FDperform_init() and hbool_t in
H5_term_library().
Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
* Implement support for loading of Virtual File Drivers as plugins
Fix plugin caching for VOL connector and VFD plugins
Fix plugin iteration to skip paths that can't be opened
* Enable dynamic loading of VFDs with HDF5_DRIVER environment variable
* Temporarily disable error reporting during H5F_open double file open
* Default to using HDstat in h5_get_file_size for unknown VFDs
* Use macros for some environment variables that HDF5 interprets
* Update "null" and "ctl testing" VFDs
* Removes clang-format comments from H5O.c call
* Fixes bin/trace to correctly wrap lines near the clang-format limit
* Removed unused variable from bin/trace
* Update API tracing for new H5VL_request_status_t typedef
* Finish converting internal event set operations to use list iterator callbacks, instead of directly accessing the list structure
* Add H5VL_REQUEST_GET_ERR_STACK operation to request subclass, for retrieving a copy of the error stack for a failed asynchronous operation
* Remove 'canceled' event status from Java constants
* Be safer about releasing resources when inserting a newly opened/created object or file into an event set
* Remove H5EStest, add H5ES_WAIT_NONE for 0 timeout, and revise parameters to H5ESwait, to make it more "aggregate".
* Remove H5ES_STATUS_CANCELED from Java wrappers also
* Apply patch for dynamically registering optional VOL operations
* (a) Add async APIs for H5O module as listed in jira issue ID-283.
(b) Remove verification of name parameter in async related routines for H55A and H5L modules
because it is checked in H5VL_setup* routine.
(c) Modify h5dump expected output due to the async changes.
* Corrections based on PR feedback.
* Further changes to make based on PR feedback.
* Remove H5Dwait & H5Fwait (moved to the async connector). Added H5atclose
routine. Updated 'optional op' operations.
* Fix missed merge marker, and reformatted line
* Update API tracing infrastructure for H5atclose callback
* Clean up some warnings
* Normalize against develop branch
* Correct level of indirection
* Add doxygen info for H5is_library_terminating and regression tests for it and H5atclose
* Relocate prototype (and doxygen info) for H5Aclose
* Align w/changes on develop
* Move group package initialization code to H5Gint.c, and update tracing macros
* Change non-static function declarations to be static
* Correct GCC diagnostic macro
* Ensure that H5TSpublic.h header gets installed (#129)
* Finish moving API routines that invoke VOL framework to main source files.
* Fix position of H5Fmount and H5Funmount
* Add 'wrapper' versions of async calls, to allow language wrappers and layers on top of HDF5 to pass in their application information.
* Add wrappers for dynamically registered optional operations
* Fix typo
* Update doxygen comment for H5atclose with additional detail.
* Add H5VL\*_vararg versions of H5VL routines that use va_list parameters
* Implement and test H5S_BLOCK
* Switch H5Aexists\*_async and H5Lexists\*_async to use flag to return status, instead of return value. Make the corresponding changes through most of the v1 and v2 B-tree code. Clean up warnings in H5public.h and cmpd_dtransform.c.
* Add H5Iregister_future routine and tests.
* Correct return value for H5Lexists_async
* Add H5_DLL macro to public H5ES API routines
* Update supported -> flags parameter for introspect_query callback
* Remove my email address. Update passthrough VOL connector ID.
* Fix comment for post_open_api_common
* Remove unused non-blocking VOL connector
* Minor cleanup in async branch in preparation for merge to develop
* Update CMake and the Autotools to use the new pass-through VOL ID
* Finish another iteration on public H5ES routines, along with running the code reformatter
* Another round of reformatting
* Fix for SWMR daily test failures (#160)
The H5I_register_using_existing_id() call did not initialize the future
ID callbacks, causing the library to segfault when it tried to
resolve those function pointers.
* Added selective async APIs (#150)
* Added selective async APIs
Description:
Added the following APIs:
H5Ropen_attr_async
H5Ropen_object_async
H5Ropen_region_async
H5Mcreate_async
H5Mopen_async
H5Mput_async
H5Mget_async
H5Mclose_async
H5Tcommit_async
H5Topen_async
H5Tcopy_async
H5Tclose_async
- Updated an expected output file to include a new internal function
in the error stack for the failure case.
* Updated async APIs per reviews, including removing async version of
H5Tcopy.
* Removed statements that were added by mistake in the previous commit.
* Fix compile issues in H5M and warnings elsewhere
* Reformat code
* Brings VOL_LIST changes from develop. (#163)
* Remove H5Dwait and H5Fwait calls, which were incorrectly brought back in
* Tiny cleanup of H5Lcreate_hard_async
* Run source formatter
* Allow for canceled operation in wait_cb
* Attempt to fix switch on string value
* Re-run source formatter
* Add H5S_BLOCK testfile to CMake clean target
* Add H5Pset_vol_async API routine and 'get_cap_flags' VOL introspection callback
* Clean up warnings
* Add H5P(set\|get)_vol_implicit_async API routines to allow \/ disallow implicit asynchronous operations (default is disallowed)
* Run formatting script
* Remove H5VL_REQUEST_WAIT\*
* Warning cleanup
* Eliminate strdup()s on statically allocated strings
* Warning cleanup
* Split H5VLrestore_lib_state into H5VLstart_lib_state and H5VLrestore_lib_state, and rename H5VLreset_lib_state to H5VLfinish_lib_state.
* Duplicate strings when building err_info to return to applicatin
* Move connector author routines into seperate header files, all included in the new hdf5dev.h header
* Run bin/trace to add TRACE macros
* Allow H5ES_NONE as a valid, but no-op, parameter to all H5ES API routines that accept an event set ID
* Clean up formatting
* Remove H5Pset/get_vol_implicit_async
* Clean up warning
* Remove H5Pget_vol_async and replace with more generic H5Pget_vol_cap_flags
* Clean up warnings
* Add H5ESfree_err_info convenience routine
* Fix typo
* Correct matching for cached VOL plugins
* Add developer header file
* Update for C99 compatibility
* Add missing trace macro
* Stop clang-format from messing with the trace macros. Don't set up VOL wrappers for 'infrastructure' objects like requests and blobs
* Fix warning about formatting a directory
* Clean up formatting for H5E_BEGIN_TRY / H5E_END_TRY
* Reduce scope of H5ES__close
* Enable CMake checks for various types on MacOS
* Clean up properly when H5CX_retrieve_state() fails. Also clean up many compiler warnings.
* Committing clang-format changes
* Merge from develop
* Fix mis-placed assert
* Remove commented-out code
* Re-add macro for unsetenv on Windows (I think it accidentally was merged out)
* Strengthen sanity check from error report to assertion
* Committing clang-format changes
* Add units to the comments for a few fields
* Switch 'get execution time' operation for async request tokens to be an optional operation and query if connector supports operation before retrieving it.
* Committing clang-format changes
* Remove H5ESget_time_estimate
* Committing clang-format changes
* Create developer header for datatype routines and move type conversion register/unregister routines there.
* Simplify internal H5VL_setup_name_args and H5VL_setup_idx_args routines
* Add H5VLlink_optional_op, allowing dynamicly registered optional operations for the link VOL subclass, also added H5VL_loc_params argument to the link 'optional' callback to allow them to work correctly.
* Run bin/format_source on current code
* Add H5VLobject_optional_op, allowing dynamicly registered optional operations for the object VOL subclass, also added H5VL_loc_params argument to the object 'optional' callback to allow them to work correctly.
* Run bin/format_source on current code
* Committing clang-format changes
* Revert "Switch 'get execution time' operation for async request tokens to be an optional operation and query if connector supports operation before retrieving it."
This reverts commit 5ac92014da.
* Committing clang-format changes
* Convert attribute 'get' operation to use struct-of-tagged-union pattern for VOL callback arguments, instead of using varargs.
* Update tracing macros
* Convert attribute 'specific' operation to use struct-of-tagged-union pattern for VOL callback arguments, instead of using varargs.
* Convert dataset 'get' and 'specific' operations to use struct-of-tagged-union pattern for VOL callback arguments, instead of using varargs. Also, minor tweaks to attribute 'get' and 'specific' operation parameters.
* Convert datatype 'get' and 'specific' operations to use struct-of-tagged-union pattern for VOL callback arguments, instead of using varargs. Also, minor tweaks to H5O_refresh_metadata arguments.
* Reduce warnings
* Reduce warnings
* Track change to datatype 'get' callback
* Fix bug with file pointer getting invalidated when object closed
* Reformat source
* Convert file and group VOL classes 'get' and 'specific' operations to use
struct-of-tagged-union pattern for VOL callback arguments, instead of using
varargs. Also small cleanup to the attribute get name operation. Also moved
'mount' and 'unmount' operations to be group specific operations, instead of
file specific, to better align with their behavior (mounted files are on
groups, so a group is what is operated on).
* Remove remainder of merge conflict marking
* Convert link VOL class 'create' operations to use struct-of-tagged-union pattern for VOL callback arguments, instead of using varargs.
* Remove some unused local variables
* Convert link VOL class 'get' operations to use struct-of-tagged-union pattern for VOL callback arguments, instead of using varargs. Also refactor 'get name by idx' routines to return actual length of name with a parameter instead of the return value, and move some callback context structs for the link interface from the private header file into the source code module, to reduce their visibility scope.
* Update tracing macros
* Convert link VOL class 'specific' operations to use struct-of-tagged-union pattern for VOL callback arguments, instead of using varargs.
* Convert object VOL class 'get' operations to use struct-of-tagged-union pattern for VOL callback arguments, instead of using varargs.
* Convert object VOL class 'specific' operations to use struct-of-tagged-union pattern for VOL callback arguments, instead of using varargs. Also refactor H5G_loc_exists, et al, to return 'exists' flag in a parameter and errors with the function return value, instead of overloading both into the return value. And, corrected logic error in test/links.c around non-existant objects in a file.
* Convert request VOL class 'specific' operations to use struct-of-tagged-union pattern for VOL callback arguments, instead of using varargs.
* Convert blob VOL class 'specific' operations to use struct-of-tagged-union pattern for VOL callback arguments, instead of using varargs. Also removes the H5VL_BLOB_GETSIZE operation, as it's unused in the library and the blob ID size for a container is now returned with H5VL_FILE_GET_CONT_INFO.
* Add 'const' to several parameters that are only queried.
* Convert all VOL classes' 'optional' operations to use struct-of-tagged-union pattern for VOL callback arguments, instead of using varargs. Convert several 'get' routines to return the length of an array in a parameter instead of combining it into the return value. Move several routines to be in less public namespace. Correct direct_chunk test to verify that parameters aren't modified on error.
* Switch get/specific/optional VOL callback argument structures to be 'async-friendly'. Also other minor cleanups and bug-fixes.
* Add H5Pset_dataset_io_hyperslab_selection / H5S_PLIST feature, to allow skipping H5Dget_space + H5Sselect_hyperslab for async operation
* Add dynamic optional operations for request objects
* Update dynamic operation test for optional request operations
* Update a comment for an operation argument
* Run trace and format_source scripts
* Committing clang-format changes
* Committing clang-format changes
Co-authored-by: vchoi <vchoi@jelly.ad.hdfgroup.org>
Co-authored-by: vchoi-hdfgroup <55293060+vchoi-hdfgroup@users.noreply.github.com>
Co-authored-by: jhendersonHDF <jhenderson@hdfgroup.org>
Co-authored-by: Dana Robinson <derobins@hdfgroup.org>
Co-authored-by: Dana Robinson <43805+derobins@users.noreply.github.com>
Co-authored-by: bmribler <39579120+bmribler@users.noreply.github.com>
Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
* Committing clang-format changes
* Converted BEGIN_FUNC, etc. macros to FUNC_ENTER
* Rips out the BEGIN_FUNC, etc. macros
* Removes 'end if', etc. comments from H5HL package
* Committing clang-format changes
* Fixes an H5EA iterate issue
* Fixes an issue in the H5FA iterator code
* Further cleanup in bin/trace after macro removal
* Iterator changes in H5EA and H5FA
Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
* Add H5Dchunk_iter method for iterating over chunks
This method iterates over all chunks in dataset, calling a user-supplied
callback with the chunk information and optional user supplied data.
The iterator is stopped when ITER_STOP is returned by the user-supplied
callback or the iterator is exhausted.
Existing methods to get chunk_info performs an iteration each time, so
to get many or all chunks causes SUM(i) for i = 0 -> N operations for N
chunks, as opposed to N operations when using this iterator for this use case.
* H5Dchunk_iter: test iterating all chunks, some chunks and failing iteration.
* H5D: move H5Dchunk_iter private methods to specific
* trace: add H5D_chunk_iter_op_t and trace H5D.c
* chunks-iter: document chunk_iter
* chunk-iter: chunk add FUNC_ENTER/FUNC_LEAVE macros
* Committing clang-format changes
Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
* Modify temporary rpath for testing in java example scripts.
* Update URL in source file Copyright headers for web copy of COPYING (license) file.
* Add release_docs/code-conventions.md file.
* Add script to test h5py.
* Fix script error.
* Add file h5pytest.yml.
* Test declaration of counter variables in for loops.
* Committing clang-format changes
* Committing clang-format changes
* Added [] to line 126 of H5LTanalyze.l.
Ran bin/genparser with flex v2.6.4 and Bison v3.0.4 on jelly.
* Revert "Added [] to line 126 of H5LTanalyze.l."
This reverts commit e4a9cee441.
* Revert extra commits to match canonical develop.
* Update top-level COPYING file and remove COPYING files from
subdirectories.
* Remove subdirectory COPYING files from MANIFEST.
Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
* Update clang config to put H5E_BEGIN_TRY / H5E_END_TRY on separate lines, empty C++ methods on separate lines, understand that ALL_MEMBERS / UNIQUE_MEMBERS are foreach macros, and properly skip the 'config' directory in the find command without emiting a warning
* Committing clang-format changes
Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
* Fixed many -Wreserved-id-macro warnings by fixing header guard spelling
Removed leading underscore(s) from header guard spelling. Used 2 regexes:
` _H5(.*)_H`
` __H5(.*)_H`
Applied case-insensitively to only .h files.
* Modified scripts that generate header files to not use underscore prefix
Interestingly, there was already no leading underscore in the trailing comment at the end of the file
* Fixed remaining -Wreserved-id-macro warning not caught by regex
* Modify temporary rpath for testing in java example scripts.
* Update URL in source file Copyright headers for web copy of COPYING
file - files not in src or test.
Although clang defines __GNUC__ and supports most gcc warnings, it doesn't support all, and will in fact even warn about an unknown pragma.
Guard appropriately.
* Add H5Fwait, H5Dwait, and other changes for async vol connector
* Revert temporary testing changes
* Add H5Fwait to header file
* Add H5VLreset_lib_state() routine.
* Correct VOL wrap context when retrieving library state for file open & create.
* Manage the API context's VOL connector state as part of the library state.
* Set the 'VOL connector property valid' flag when restoring the library state.
* Don't push new API context on stack when retrieving "current" one.
* Check for NULL VOL wrap context before decrementing refcount on it, when
freeing the API context state.
* Manage recount of underlying connector for VOL wrap context.
* Add H5TSmutex_acquire() and H5TSmutex_release() routines to acquire and
release the global lock on the HDF5 library.
* Update library with new functions related to library global lock
* Add asynchronous token API
* Add new lightweight FUNC_ENTER / LEAVE macros for helping to structure the
threadsafety (H5TS*) routines.
* Sync w/develop
* Initial event set code framework.
* Elaborate on the H5ES routines, starting to add API routines.
Update the "close ID" callbacks to allow asynchronous request tokens to be
passed in from an asynchronous close API call.
Refactor current asynchronous API routines (H5Fopen/H5Fclose and
H5Dread/H5Dread) to use event sets instead of directly working with request
tokens from the application.
Clean up a few other minor warnings & code style issues.
* Implement H5EScreate, H5ESget_count, and H5ESclose.
It should be possible to write a simple application that creates an event
set and uses it with H5Fopen_async, H5Dread_async, H5Dwrite_async, and
H5Fclose_async, then calls H5ESclose (which waits for all async events to
complete).
* Add source file for event set test.
* Refactor sync & async API routines to call common routine.
Move dataset API read / write routines to src/H5D.c, along with all the other
API routines.
Progress on "fake" async VOL connector, for testing.
* Modify async implementation to wrap async requests in a H5VL_object_t
struct so the VOL layer can find the connector when accessing the
request at a later point.
* Free the requests is H5ESclose. Remove comments implying that request
wait, notify, and cancel callbacks should free the request.
* Fix bug in error handling in H5Fclose.
* Fix bugs in async file routines. Rename H5VL_create_object_generic to
H5VL_create_object.
* Add explicit async version of H5Fcreate.
* Add more _async routines
* Correct typo for return value from H5Awrite changes
* Add H5EStest and H5ESwait routines
* Updated with API tracing info
* Fix NULL pointer dereference in H5ES__wait
* Add H5is_library_terminating() routine, so that VOL connectors can detect
when the library is shutting down.
* Fix typo
* Remove event from event set's linked list
* Move block of code so that vol_obj is valid
* Avoid setting properties in the DXPL when reseting the library state (and in
the test code).
* Refactor argument tracing to implement new capability for tracing arguments
of non-API routines, with the H5ARG_TRACE macro. This macro is updated
automatically with the bin/trace script that runs as part of the autogen.sh
process. Major changes were in src/H5trace.c and bin/trace, with the other
changes being cleanups to the argument lists, to improve their presentation
in the tracing output.
Also - added the "managed string" routines, which can dynamically allocate
strings, appending printf-formatted output to the string efficiently.
* Release memory for managed strings
* Fix printf() formats.
* More printf() format fixes.
* Add H5Eappend_stack routine and regression tests
* Clean up a few missed merge conflicts and update the error stacks.
* Remove unnecessary fork() operations and ten second sleep().
* Restore commented out attribute out, to better enable tracking down the previous failure
* Allow multiple H5ARG_TRACE macros within a routine to be updated
* Switch to using "new" H5ES_insert (which takes the arguments for the caller routine) for all event set operations. Renames H5ES_insert_new to H5ES_insert and removes the previous H5ES_insert.
* Merge "managed" string routines into "ref-counted" strings, and refactor code to use them.
* Add missing file.
* Add caller's name and arguments to event, for error reporting
* Refactor event set setup for "API common" internal routines
* Checkin async API routines for H5A* and H5G* modules as listed in ID-283.
Fix couple h5dump expected output files due to the changes.
* Add some of the error query routines needed for event sets.
* Refactor to make async setup / teardown and "common" routines cleaner
* (1) Add async APIs to H5L, H5F, and H5D modules
(2) Fix errors in previous checkins of async APIs in H5A and H5G modules
(3) h5dump expected output changes
* Enhance event info, for better error handling
* Change name of temporary vol_obj variable, to help reduce coding errors
* Fix oversight with vol_obj pointer
* Minor code cleanup
* Add missing \'valid\' flag for VOL wrapper context, when restoring the library\'s state
* Run source formatter
* Change H5TSmutex lock and release to include a lock count
* Update error reporting ideas
* Minor updates to improve sanity checking for retrieving / restoring library state
* Updated with feedback from h5py team members
* Refactor internal event set list and event handling, add implementation for H5ESget_err_info
* Change the VOL request subclass callbacks that switch from using "H5ES_status_t" to "H5VL_request_status_t", and also add a H5VL_request_status_t* parameter to the 'cancel' callback in the request subclass. Also more code quality cleanups to add iterator callbacks to internal event set routines.
* Update API tracing for new H5VL_request_status_t typedef
* Finish converting internal event set operations to use list iterator callbacks, instead of directly accessing the list structure
* Add H5VL_REQUEST_GET_ERR_STACK operation to request subclass, for retrieving a copy of the error stack for a failed asynchronous operation
* Remove 'canceled' event status from Java constants
* Be safer about releasing resources when inserting a newly opened/created object or file into an event set
* Remove H5EStest, add H5ES_WAIT_NONE for 0 timeout, and revise parameters to H5ESwait, to make it more "aggregate".
* Remove H5ES_STATUS_CANCELED from Java wrappers also
* (a) Add async APIs for H5O module as listed in jira issue ID-283.
(b) Remove verification of name parameter in async related routines for H55A and H5L modules
because it is checked in H5VL_setup* routine.
(c) Modify h5dump expected output due to the async changes.
* Corrections based on PR feedback.
* Further changes to make based on PR feedback.
* Fix missed merge marker, and reformatted line
* Clean up some warnings
* Correct level of indirection
* Relocate prototype (and doxygen info) for H5Aclose
* Change non-static function declarations to be static
* Ensure that H5TSpublic.h header gets installed (#129)
* Add 'wrapper' versions of async calls, to allow language wrappers and layers on top of HDF5 to pass in their application information.
* Switch H5Aexists\*_async and H5Lexists\*_async to use flag to return status, instead of return value. Make the corresponding changes through most of the v1 and v2 B-tree code. Clean up warnings in H5public.h and cmpd_dtransform.c.
* Add H5Iregister_future routine and tests.
* Correct return value for H5Lexists_async
* Add H5_DLL macro to public H5ES API routines
* Update supported -> flags parameter for introspect_query callback
* Remove my email address. Update passthrough VOL connector ID.
* Fix comment for post_open_api_common
* Remove unused non-blocking VOL connector
* Minor cleanup in async branch in preparation for merge to develop
* Update CMake and the Autotools to use the new pass-through VOL ID
* Fix for SWMR daily test failures (#160)
The H5I_register_using_existing_id() call did not initialize the future
ID callbacks, causing the library to segfault when it tried to
resolve those function pointers.
* Added selective async APIs (#150)
* Added selective async APIs
Description:
Added the following APIs:
H5Ropen_attr_async
H5Ropen_object_async
H5Ropen_region_async
H5Mcreate_async
H5Mopen_async
H5Mput_async
H5Mget_async
H5Mclose_async
H5Tcommit_async
H5Topen_async
H5Tcopy_async
H5Tclose_async
- Updated an expected output file to include a new internal function
in the error stack for the failure case.
* Updated async APIs per reviews, including removing async version of
H5Tcopy.
* Removed statements that were added by mistake in the previous commit.
* Fix compile issues in H5M and warnings elsewhere
* Reformat code
* Brings VOL_LIST changes from develop. (#163)
Co-authored-by: Houjun Tang <htang4@lbl.gov>
Co-authored-by: Neil Fortner <nfortne2@hdfgroup.org>
Co-authored-by: vchoi <vchoi@jelly.ad.hdfgroup.org>
Co-authored-by: vchoi-hdfgroup <55293060+vchoi-hdfgroup@users.noreply.github.com>
Co-authored-by: jhendersonHDF <jhenderson@hdfgroup.org>
Co-authored-by: Dana Robinson <derobins@hdfgroup.org>
Co-authored-by: Dana Robinson <43805+derobins@users.noreply.github.com>
Co-authored-by: bmribler <39579120+bmribler@users.noreply.github.com>
Enhance API tracing to handle more types, and to put tracing info in a string, allowing it to be used when reporting errors. Also refactor ref-counted strings (H5RS) module to add capabilities needed for the tracing. Refactored H5Gname.c routines to use new H5RS routines also. Added /*out*/ tags to API routines that are returning information to the application. Updated H5TRACE macros from running updated trace script over library code. Added tests for new H5RS routines.
* Brings hash table ID code over from Bitbucket branch
* Includes reformatting via clang.
* Excludes uthash.h from reformatting.
* Still has the failing test issue in tid.c. This should only be a
problem if a custom ID type is used and its free function deletes
other IDs.
* Fixes munged H5_GCC_DIAG_ON/OFF macros in H5I.c
The H5_GCC_DIAG_ON/OFF macros used to turn off fallthrough warnings
in uthash.h (external code) were munged when formatting with clang
due to their lack of quotes.
e.g.;
H5_GCC_DIAG_OFF(implicit-fallthrough)
was munged to:
H5_GCC_DIAG_OFF(implicit - fallthrough)
which compiles, but is useless. So, with quotes, this is now:
H5_GCC_DIAG_OFF("implicit-fallthrough")
which survives reformatting with clang.
* Fixes issues with user callbacks in the ID hash tables
The skip lists (previously) used to handle IDs use a mark-and-sweep
scheme to deal with user-defined ID delete callbacks which themselves delete
other IDs in the list. The uthash hash table implementation used to manage
the IDs in this feature branch does not have this ability.
This commit restores the skip lists for non-library ID types in lieu of
significantly modifying the uthash code. The hash tables are used to
manage the library IDs as those do not delete other IDs when they are
closed.
* Adds uthash.h to MANIFEST
* Removes implicit-fallthrough diagnostic disable
Removing -Wimplicit-fallthrough=5 means that the uthash code
no longer raises warnings so the H5_GCC_DIAG_OFF/ON macros
that disabled those warnings have been removed from H5I.c.
* Adds a test to ensure you can delete IDs in the H5Iiterate() callback
Adds missing HD prefixes to API calls in src and test.
Adds some extra processing to bin/checkposix to keep the noise
levels down when running the script (not comprehensive).
* Add BEGIN_FUNC / CATCH / END_FUNC to macros
* Remove incorrect trailing '{'
* Update trace script to wrap H5TRACE macros at 110 characters and improve
comments for code that performs this operation.
* Clean up printf-formatting in H5public.h and correct some oversights in the code.
* Reformat with BEGIN_FUNC / END_FUNC handled correctly by clang-format
* Run clang-format on changes.
* Correct H5_SIZEOF_HSIZE_T/H5_SIZEOF_HSSIZE_T macros to match typedef.
* And make the undef value match also.
* Update comment
* Update clang-format actions to exclude generated files.
* Post-process generated H5LTparse.h file as well as H5LTparse.c file.
* Fix formatting
* Update version of github clang-format action
* h5repacktest VFD fix and formatting changes
* Fix memory leak in H5PL__find_plugin_in_path
When encountering a directory, the current loop iteration was skipped
without freeing the memory allocated for the path.
* Refactor parser GCC diagnostic statements
* genparser on jelly with default bison/flex
Co-authored-by: Michael Kuhn <michael.kuhn@ovgu.de>
Add Splitter VFD and Mirror VFD.
* commit '664fc6af47e369152727ff66d68d8532feb0e210':
Add enable-mirror-vfd flag to configure options.
Tidying of Mirror VFD.
Add function header comment for `mirror_writer:run_writer()`.
Add Splitter VFD to library.
* commit 'd3ef866a2963ce93d0b95184534a70849b6fa11d':
Revise API for H5get_alloc_stats() to take a struct instead of separate values.
Move the GNU warnings configuration under config/gnu-warnings/ and trim the filename prefixes. Update config/gnu-flags to suit.
Fixed the RELEASE.txt note for HDFFV-11057
Fix shutdown errors when using the HDF5_VOL_CONNECTOR environment variable to set a dynamically loaded plugin as the default VOL connector. Fixes HDFFV-11057
Fix threadsafe for new test
Fix issues when deserializing point/all/none selection with version beyond the library's supported version: (1) Verify the decoded version before proceeding further with deserialization (2) Close the dataspace if errors occurred after opening the dataspace
Very minor comment change in H5VLconnector.h.
Add routines to query the library's free list sizes and allocation stats.
By default, demote warnings promoted to errors back to warnings.
Incorporate the H5_ECFLAGS into the library CFLAGS. Now a bunch of errors will occur. Next commit will demote the warnings promoted to errors back to warnings again.
Break out warnings into more files that autoconf and CMake can share. This change temporarily disables the warnings that were promoted to errors, but I will add those warnings back as warnings, not errors, in the next commit.
Avoid a crash, don't check if we're flushing when the file is closing: there's no need to check if the metadata cache is flushing if we already know the file is closing, because the condition we rely on is "closing OR flushing." Further, the cache may have already gone away, so sometimes calling into the cache to see if it's flushing will crash the program.
* "Simultaneous and equivalent" Read-Write and Write-Only channels for
file I/O.
* Only supports drivers with the H5FD_FEAT_DEFAULT_VFD_COMPATIBLE flag for
now, preventing issues with multi-file drivers.
Add Mirror VFD to library.
* Write-only operations over a network.
* Uses TCP/IP sockets.
* Server and auxiliary server-shutdown programs provided in a new directory,
`utils/mirror_vfd`.
* Automated testing via loopback ("remote" of localhost).
