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| author | Gaute Hope <eg@gaute.vetsj.com> | 2021-05-19 22:21:52 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-05-19 22:21:52 (GMT) |
| commit | 509a068f628826b8d1d09b7ab267400f4cec0852 (patch) | |
| tree | 3e780797310237f158ba542bf0430b27cdc829c5 /src/H5VLnative_dataset.c | |
| parent | d179f9d79ca9ed3f94715b907e3d8426a26ee766 (diff) | |
| download | hdf5-509a068f628826b8d1d09b7ab267400f4cec0852.zip hdf5-509a068f628826b8d1d09b7ab267400f4cec0852.tar.gz hdf5-509a068f628826b8d1d09b7ab267400f4cec0852.tar.bz2 | |
Add H5Dchunk_iter method for iterating over chunks (#6)
* 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>
Diffstat (limited to 'src/H5VLnative_dataset.c')
| -rw-r--r-- | src/H5VLnative_dataset.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/H5VLnative_dataset.c b/src/H5VLnative_dataset.c index d78388e..21491e7 100644 --- a/src/H5VLnative_dataset.c +++ b/src/H5VLnative_dataset.c @@ -353,6 +353,24 @@ H5VL__native_dataset_specific(void *obj, H5VL_dataset_specific_t specific_type, break; } + case H5VL_DATASET_CHUNK_ITER: { /* H5Dchunk_iter */ + H5D_chunk_iter_op_t cb = HDva_arg(arguments, H5D_chunk_iter_op_t); + void * op_data = HDva_arg(arguments, void *); + + HDassert(dset->shared); + + /* Make sure the dataset is chunked */ + if (H5D_CHUNKED != dset->shared->layout.type) { + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a chunked dataset") + } + + /* Call private function */ + if (H5D__chunk_iter(dset, cb, op_data) < 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't iterate over chunks") + + break; + } + default: HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "invalid specific operation") } /* end switch */ |