diff options
Diffstat (limited to 'src/H5Pdcpl.c')
| -rw-r--r-- | src/H5Pdcpl.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/src/H5Pdcpl.c b/src/H5Pdcpl.c index 43696fc..dcd120e 100644 --- a/src/H5Pdcpl.c +++ b/src/H5Pdcpl.c @@ -40,6 +40,7 @@ #include "H5Iprivate.h" /* IDs */ #include "H5MMprivate.h" /* Memory management */ #include "H5Ppkg.h" /* Property lists */ +#include "H5Vprivate.h" /* Vectors and arrays */ #include "H5Zpkg.h" /* Data filters */ @@ -50,7 +51,7 @@ /* Define default layout information */ #define H5D_DEF_LAYOUT_COMPACT_INIT {(hbool_t)FALSE, (size_t)0, NULL} #define H5D_DEF_LAYOUT_CONTIG_INIT {HADDR_UNDEF, (hsize_t)0} -#define H5D_DEF_LAYOUT_CHUNK_INIT {H5D_CHUNK_BTREE, (unsigned)1, {1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, (uint32_t)0, NULL, {{HADDR_UNDEF, NULL}}} +#define H5D_DEF_LAYOUT_CHUNK_INIT {H5D_CHUNK_BTREE, (unsigned)1, {1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, (unsigned)0, (uint32_t)0, NULL, {{HADDR_UNDEF, NULL}}} #ifdef H5_HAVE_C99_DESIGNATED_INITIALIZER #define H5D_DEF_LAYOUT_COMPACT {H5D_COMPACT, H5O_LAYOUT_VERSION_3, NULL, { .compact = H5D_DEF_LAYOUT_COMPACT_INIT }} #define H5D_DEF_LAYOUT_CONTIG {H5D_CONTIGUOUS, H5O_LAYOUT_VERSION_3, NULL, { .contig = H5D_DEF_LAYOUT_CONTIG_INIT }} @@ -928,6 +929,7 @@ 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 */ @@ -955,7 +957,10 @@ 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)) @@ -964,7 +969,16 @@ 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 = (H5V_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))) |