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-rw-r--r--src/H5Dchunk.c88
-rw-r--r--src/H5Dlayout.c7
-rw-r--r--src/H5Dpkg.h1
-rw-r--r--src/H5Pdcpl.c13
4 files changed, 71 insertions, 38 deletions
diff --git a/src/H5Dchunk.c b/src/H5Dchunk.c
index 309c7a8..4d0e2c3 100644
--- a/src/H5Dchunk.c
+++ b/src/H5Dchunk.c
@@ -557,6 +557,69 @@ done:
/*-------------------------------------------------------------------------
+ * Function: H5D__chunk_set_sizes
+ *
+ * Purpose: Sets chunk and type sizes.
+ *
+ * Return: SUCCEED/FAIL
+ *
+ * Programmer: Dana Robinson
+ * December 2015
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5D__chunk_set_sizes(H5D_t *dset)
+{
+ uint64_t chunk_size; /* Size of chunk in bytes */
+ unsigned max_enc_bytes_per_dim; /* Max. number of bytes required to encode this dimension */
+ unsigned u; /* Iterator */
+ herr_t ret_value = SUCCEED; /* Return value */
+
+ FUNC_ENTER_NOAPI(FAIL)
+
+ /* Sanity checks */
+ HDassert(dset);
+
+ /* Increment # of chunk dimensions, to account for datatype size as last element */
+ dset->shared->layout.u.chunk.ndims++;
+
+ /* Set the last dimension of the chunk size to the size of the datatype */
+ dset->shared->layout.u.chunk.dim[dset->shared->layout.u.chunk.ndims - 1] = (uint32_t)H5T_GET_SIZE(dset->shared->type);
+
+ /* Compute number of bytes to use for encoding chunk dimensions */
+ max_enc_bytes_per_dim = 0;
+ for(u = 0; u < (unsigned)dset->shared->layout.u.chunk.ndims; u++) {
+ unsigned enc_bytes_per_dim; /* Number of bytes required to encode this dimension */
+
+ /* Get encoded size of dim, in bytes */
+ enc_bytes_per_dim = (H5VM_log2_gen(dset->shared->layout.u.chunk.dim[u]) + 8) / 8;
+
+ /* Check if this is the largest value so far */
+ if(enc_bytes_per_dim > max_enc_bytes_per_dim)
+ max_enc_bytes_per_dim = enc_bytes_per_dim;
+ } /* end for */
+ HDassert(max_enc_bytes_per_dim > 0 && max_enc_bytes_per_dim <= 8);
+ dset->shared->layout.u.chunk.enc_bytes_per_dim = max_enc_bytes_per_dim;
+
+ /* Compute and store the total size of a chunk */
+ /* (Use 64-bit value to ensure that we can detect >4GB chunks) */
+ for(u = 1, chunk_size = (uint64_t)dset->shared->layout.u.chunk.dim[0]; u < dset->shared->layout.u.chunk.ndims; u++)
+ chunk_size *= (uint64_t)dset->shared->layout.u.chunk.dim[u];
+
+ /* Check for chunk larger than can be represented in 32-bits */
+ /* (Chunk size is encoded in 32-bit value in v1 B-tree records) */
+ if(chunk_size > (uint64_t)0xffffffff)
+ HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "chunk size must be < 4GB")
+
+ H5_CHECKED_ASSIGN(dset->shared->layout.u.chunk.size, uint32_t, chunk_size, uint64_t);
+
+done:
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5D__chunk_set_sizes */
+
+
+/*-------------------------------------------------------------------------
* Function: H5D__chunk_construct
*
* Purpose: Constructs new chunked layout information for dataset
@@ -571,8 +634,6 @@ done:
static herr_t
H5D__chunk_construct(H5F_t H5_ATTR_UNUSED *f, H5D_t *dset)
{
- const H5T_t *type = dset->shared->type; /* Convenience pointer to dataset's datatype */
- uint64_t chunk_size; /* Size of chunk in bytes */
unsigned u; /* Local index variable */
herr_t ret_value = SUCCEED; /* Return value */
@@ -585,22 +646,18 @@ H5D__chunk_construct(H5F_t H5_ATTR_UNUSED *f, H5D_t *dset)
/* Check for invalid chunk dimension rank */
if(0 == dset->shared->layout.u.chunk.ndims)
HGOTO_ERROR(H5E_DATASET, H5E_BADVALUE, FAIL, "no chunk information set?")
-
- /* Set up layout information */
if(dset->shared->layout.u.chunk.ndims != dset->shared->ndims)
HGOTO_ERROR(H5E_DATASET, H5E_BADVALUE, FAIL, "dimensionality of chunks doesn't match the dataspace")
- /* Increment # of chunk dimensions, to account for datatype size as last element */
- dset->shared->layout.u.chunk.ndims++;
+ /* Set chunk sizes */
+ if(H5D__chunk_set_sizes(dset) < 0)
+ HGOTO_ERROR(H5E_DATASET, H5E_BADVALUE, FAIL, "unable to set chunk sizes")
HDassert((unsigned)(dset->shared->layout.u.chunk.ndims) <= NELMTS(dset->shared->layout.u.chunk.dim));
/* Chunked storage is not compatible with external storage (currently) */
if(dset->shared->dcpl_cache.efl.nused > 0)
HGOTO_ERROR(H5E_DATASET, H5E_BADVALUE, FAIL, "external storage not supported with chunked layout")
- /* Set the last dimension of the chunk size to the size of the datatype */
- dset->shared->layout.u.chunk.dim[dset->shared->layout.u.chunk.ndims - 1] = (uint32_t)H5T_GET_SIZE(type);
-
/* Sanity check dimensions */
for(u = 0; u < dset->shared->layout.u.chunk.ndims - 1; u++) {
/* Don't allow zero-sized chunk dimensions */
@@ -616,19 +673,6 @@ H5D__chunk_construct(H5F_t H5_ATTR_UNUSED *f, H5D_t *dset)
HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "chunk size must be <= maximum dimension size for fixed-sized dimensions")
} /* end for */
- /* Compute the total size of a chunk */
- /* (Use 64-bit value to ensure that we can detect >4GB chunks) */
- for(u = 1, chunk_size = (uint64_t)dset->shared->layout.u.chunk.dim[0]; u < dset->shared->layout.u.chunk.ndims; u++)
- chunk_size *= (uint64_t)dset->shared->layout.u.chunk.dim[u];
-
- /* Check for chunk larger than can be represented in 32-bits */
- /* (Chunk size is encoded in 32-bit value in v1 B-tree records) */
- if(chunk_size > (uint64_t)0xffffffff)
- HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "chunk size must be < 4GB")
-
- /* Retain computed chunk size */
- H5_CHECKED_ASSIGN(dset->shared->layout.u.chunk.size, uint32_t, chunk_size, uint64_t);
-
/* Reset address and pointer of the array struct for the chunked storage index */
if(H5D_chunk_idx_reset(&dset->shared->layout.storage.u.chunk, TRUE) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to reset chunked storage index")
diff --git a/src/H5Dlayout.c b/src/H5Dlayout.c
index 2b444e4..7801632 100644
--- a/src/H5Dlayout.c
+++ b/src/H5Dlayout.c
@@ -453,9 +453,10 @@ H5D__layout_oh_read(H5D_t *dataset, hid_t dxpl_id, hid_t dapl_id, H5P_genplist_t
/* Copy layout to the DCPL */
if(H5P_set(plist, H5D_CRT_LAYOUT_NAME, &dataset->shared->layout) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTSET, FAIL, "can't set layout")
- /* Adjust chunk dimensions back again (*sigh*) */
- if(H5D_CHUNKED == dataset->shared->layout.type)
- dataset->shared->layout.u.chunk.ndims++;
+
+ /* Set chunk sizes */
+ if(H5D__chunk_set_sizes(dataset) < 0)
+ HGOTO_ERROR(H5E_DATASET, H5E_BADVALUE, FAIL, "unable to set chunk sizes")
done:
FUNC_LEAVE_NOAPI(ret_value)
diff --git a/src/H5Dpkg.h b/src/H5Dpkg.h
index 66c4773..8fc5cac 100644
--- a/src/H5Dpkg.h
+++ b/src/H5Dpkg.h
@@ -622,6 +622,7 @@ H5_DLL herr_t H5D__chunk_update_old_edge_chunks(H5D_t *dset, hid_t dxpl_id,
hsize_t old_dim[]);
H5_DLL herr_t H5D__chunk_prune_by_extent(H5D_t *dset, hid_t dxpl_id,
const hsize_t *old_dim);
+H5_DLL herr_t H5D__chunk_set_sizes(H5D_t *dset);
#ifdef H5_HAVE_PARALLEL
H5_DLL herr_t H5D__chunk_addrmap(const H5D_io_info_t *io_info, haddr_t chunk_addr[]);
#endif /* H5_HAVE_PARALLEL */
diff --git a/src/H5Pdcpl.c b/src/H5Pdcpl.c
index 0346f89..dbbed5b 100644
--- a/src/H5Pdcpl.c
+++ b/src/H5Pdcpl.c
@@ -1984,7 +1984,6 @@ H5Pset_chunk(hid_t plist_id, int ndims, const hsize_t dim[/*ndims*/])
H5P_genplist_t *plist; /* Property list pointer */
H5O_layout_t chunk_layout; /* Layout information for setting chunk info */
uint64_t chunk_nelmts; /* Number of elements in chunk */
- unsigned max_enc_bytes_per_dim; /* Max. number of bytes required to encode this dimension */
unsigned u; /* Local index variable */
herr_t ret_value = SUCCEED; /* Return value */
@@ -2012,10 +2011,7 @@ H5Pset_chunk(hid_t plist_id, int ndims, const hsize_t dim[/*ndims*/])
HDmemcpy(&chunk_layout, &H5D_def_layout_chunk_g, sizeof(H5D_def_layout_chunk_g));
HDmemset(&chunk_layout.u.chunk.dim, 0, sizeof(chunk_layout.u.chunk.dim));
chunk_nelmts = 1;
- max_enc_bytes_per_dim = 0;
for(u = 0; u < (unsigned)ndims; u++) {
- unsigned enc_bytes_per_dim; /* Number of bytes required to encode this dimension */
-
if(dim[u] == 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADRANGE, FAIL, "all chunk dimensions must be positive")
if(dim[u] != (dim[u] & 0xffffffff))
@@ -2024,16 +2020,7 @@ H5Pset_chunk(hid_t plist_id, int ndims, const hsize_t dim[/*ndims*/])
if(chunk_nelmts > (uint64_t)0xffffffff)
HGOTO_ERROR(H5E_ARGS, H5E_BADRANGE, FAIL, "number of elements in chunk must be < 4GB")
chunk_layout.u.chunk.dim[u] = (uint32_t)dim[u]; /* Store user's chunk dimensions */
-
- /* Get encoded size of dim, in bytes */
- enc_bytes_per_dim = (H5VM_log2_gen(dim[u]) + 8) / 8;
-
- /* Check if this is the largest value so far */
- if(enc_bytes_per_dim > max_enc_bytes_per_dim)
- max_enc_bytes_per_dim = enc_bytes_per_dim;
} /* end for */
- HDassert(max_enc_bytes_per_dim > 0 && max_enc_bytes_per_dim <= 8);
- chunk_layout.u.chunk.enc_bytes_per_dim = max_enc_bytes_per_dim;
/* Get the plist structure */
if(NULL == (plist = H5P_object_verify(plist_id, H5P_DATASET_CREATE)))
generated by cgit v0.12 at 2024-10-31 09:22:23 (GMT)