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| author | jhendersonHDF <jhenderson@hdfgroup.org> | 2022-07-25 14:59:11 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-07-25 14:59:11 (GMT) |
| commit | b49c2847181e67e0cc2e123cf63fc86643f54a6d (patch) | |
| tree | 6f8be6cf7e7cfc28f9faffb5311fdedc111fc412 /src | |
| parent | a4a8e1d23f3fe16d3c2f1dc87f7233327ce12af9 (diff) | |
| download | hdf5-b49c2847181e67e0cc2e123cf63fc86643f54a6d.zip hdf5-b49c2847181e67e0cc2e123cf63fc86643f54a6d.tar.gz hdf5-b49c2847181e67e0cc2e123cf63fc86643f54a6d.tar.bz2 | |
Avoid allocating chunk map for contiguous and compact dataset I/O (#1927)
Diffstat (limited to 'src')
| -rw-r--r-- | src/H5Dio.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/src/H5Dio.c b/src/H5Dio.c index a7cb937..a0f51cb 100644 --- a/src/H5Dio.c +++ b/src/H5Dio.c @@ -87,6 +87,7 @@ H5D__read(H5D_t *dataset, hid_t mem_type_id, H5S_t *mem_space, H5S_t *file_space H5D_chunk_map_t *fm = NULL; /* Chunk file<->memory mapping */ H5D_io_info_t io_info; /* Dataset I/O info */ H5D_type_info_t type_info; /* Datatype info for operation */ + H5D_layout_t layout_type; /* Dataset's layout type (contig, chunked, compact, etc.) */ hbool_t type_info_init = FALSE; /* Whether the datatype info has been initialized */ H5S_t * projected_mem_space = NULL; /* If not NULL, ptr to dataspace containing a */ /* projection of the supplied mem_space to a new */ @@ -114,6 +115,8 @@ H5D__read(H5D_t *dataset, hid_t mem_type_id, H5S_t *mem_space, H5S_t *file_space HDassert(file_space); HDassert(mem_space); + layout_type = dataset->shared->layout.type; + /* Set up datatype info for operation */ if (H5D__typeinfo_init(dataset, mem_type_id, FALSE, &type_info) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to set up type info") @@ -239,11 +242,13 @@ H5D__read(H5D_t *dataset, hid_t mem_type_id, H5S_t *mem_space, H5S_t *file_space HDassert((*dataset->shared->layout.ops->is_space_alloc)(&dataset->shared->layout.storage) || (dataset->shared->layout.ops->is_data_cached && (*dataset->shared->layout.ops->is_data_cached)(dataset->shared)) || - dataset->shared->dcpl_cache.efl.nused > 0 || dataset->shared->layout.type == H5D_COMPACT); + dataset->shared->dcpl_cache.efl.nused > 0 || layout_type == H5D_COMPACT); /* Allocate the chunk map */ - if (NULL == (fm = H5FL_CALLOC(H5D_chunk_map_t))) - HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "can't allocate chunk map") + if (H5D_CONTIGUOUS != layout_type && H5D_COMPACT != layout_type) { + if (NULL == (fm = H5FL_CALLOC(H5D_chunk_map_t))) + HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "can't allocate chunk map") + } /* Call storage method's I/O initialization routine */ if (io_info.layout_ops.io_init && @@ -299,6 +304,7 @@ H5D__write(H5D_t *dataset, hid_t mem_type_id, H5S_t *mem_space, H5S_t *file_spac H5D_chunk_map_t *fm = NULL; /* Chunk file<->memory mapping */ H5D_io_info_t io_info; /* Dataset I/O info */ H5D_type_info_t type_info; /* Datatype info for operation */ + H5D_layout_t layout_type; /* Dataset's layout type (contig, chunked, compact, etc.) */ hbool_t type_info_init = FALSE; /* Whether the datatype info has been initialized */ hbool_t should_alloc_space = FALSE; /* Whether or not to initialize dataset's storage */ H5S_t * projected_mem_space = NULL; /* If not NULL, ptr to dataspace containing a */ @@ -327,6 +333,8 @@ H5D__write(H5D_t *dataset, hid_t mem_type_id, H5S_t *mem_space, H5S_t *file_spac HDassert(file_space); HDassert(mem_space); + layout_type = dataset->shared->layout.type; + /* All filters in the DCPL must have encoding enabled. */ if (!dataset->shared->checked_filters) { if (H5Z_can_apply(dataset->shared->dcpl_id, dataset->shared->type_id) < 0) @@ -466,8 +474,10 @@ H5D__write(H5D_t *dataset, hid_t mem_type_id, H5S_t *mem_space, H5S_t *file_spac } /* end if */ /* Allocate the chunk map */ - if (NULL == (fm = H5FL_CALLOC(H5D_chunk_map_t))) - HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "can't allocate chunk map") + if (H5D_CONTIGUOUS != layout_type && H5D_COMPACT != layout_type) { + if (NULL == (fm = H5FL_CALLOC(H5D_chunk_map_t))) + HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "can't allocate chunk map") + } /* Call storage method's I/O initialization routine */ if (io_info.layout_ops.io_init && |