/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Copyright by The HDF Group. * * All rights reserved. * * * * This file is part of HDF5. The full HDF5 copyright notice, including * * terms governing use, modification, and redistribution, is contained in * * the COPYING file, which can be found at the root of the source code * * distribution tree, or in https://www.hdfgroup.org/licenses. * * If you do not have access to either file, you may request a copy from * * help@hdfgroup.org. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /****************/ /* Module Setup */ /****************/ #include "H5Dmodule.h" /* This source code file is part of the H5D module */ /***********/ /* Headers */ /***********/ #include "H5private.h" /* Generic Functions */ #include "H5Dpkg.h" /* Datasets */ #include "H5Eprivate.h" /* Error handling */ #include "H5HLprivate.h" /* Local heaps */ /****************/ /* Local Macros */ /****************/ /******************/ /* Local Typedefs */ /******************/ /********************/ /* Local Prototypes */ /********************/ /*********************/ /* Package Variables */ /*********************/ /* Format version bounds for layout */ const unsigned H5O_layout_ver_bounds[] = { H5O_LAYOUT_VERSION_1, /* H5F_LIBVER_EARLIEST */ H5O_LAYOUT_VERSION_3, /* H5F_LIBVER_V18 */ /* H5O_LAYOUT_VERSION_DEFAULT */ H5O_LAYOUT_VERSION_4, /* H5F_LIBVER_V110 */ H5O_LAYOUT_VERSION_LATEST /* H5F_LIBVER_LATEST */ }; /*****************************/ /* Library Private Variables */ /*****************************/ /*******************/ /* Local Variables */ /*******************/ /*------------------------------------------------------------------------- * Function: H5D__layout_set_io_ops * * Purpose: Set the I/O operation function pointers for a dataset, * according to the dataset's layout * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Thursday, March 20, 2008 * *------------------------------------------------------------------------- */ herr_t H5D__layout_set_io_ops(const H5D_t *dataset) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE /* check args */ HDassert(dataset); /* Set the I/O functions for each layout type */ switch (dataset->shared->layout.type) { case H5D_CONTIGUOUS: if (dataset->shared->dcpl_cache.efl.nused > 0) dataset->shared->layout.ops = H5D_LOPS_EFL; else dataset->shared->layout.ops = H5D_LOPS_CONTIG; break; case H5D_CHUNKED: dataset->shared->layout.ops = H5D_LOPS_CHUNK; /* Set the chunk operations */ switch (dataset->shared->layout.u.chunk.idx_type) { case H5D_CHUNK_IDX_BTREE: dataset->shared->layout.storage.u.chunk.ops = H5D_COPS_BTREE; break; case H5D_CHUNK_IDX_NONE: dataset->shared->layout.storage.u.chunk.ops = H5D_COPS_NONE; break; case H5D_CHUNK_IDX_SINGLE: dataset->shared->layout.storage.u.chunk.ops = H5D_COPS_SINGLE; break; case H5D_CHUNK_IDX_FARRAY: dataset->shared->layout.storage.u.chunk.ops = H5D_COPS_FARRAY; break; case H5D_CHUNK_IDX_EARRAY: dataset->shared->layout.storage.u.chunk.ops = H5D_COPS_EARRAY; break; case H5D_CHUNK_IDX_BT2: dataset->shared->layout.storage.u.chunk.ops = H5D_COPS_BT2; break; case H5D_CHUNK_IDX_NTYPES: default: HDassert(0 && "Unknown chunk index method!"); HGOTO_ERROR(H5E_DATASET, H5E_UNSUPPORTED, FAIL, "unknown chunk index method") } /* end switch */ break; case H5D_COMPACT: dataset->shared->layout.ops = H5D_LOPS_COMPACT; break; case H5D_VIRTUAL: dataset->shared->layout.ops = H5D_LOPS_VIRTUAL; break; case H5D_LAYOUT_ERROR: case H5D_NLAYOUTS: default: HGOTO_ERROR(H5E_DATASET, H5E_UNSUPPORTED, FAIL, "unknown storage method") } /* end switch */ /*lint !e788 All appropriate cases are covered */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5D__layout_set_io_ops() */ /*------------------------------------------------------------------------- * Function: H5D__layout_meta_size * * Purpose: Returns the size of the raw message in bytes except raw data * part for compact dataset. This function doesn't take into * account message alignment. * * Return: Success: Message data size in bytes * Failure: 0 * * Programmer: Raymond Lu * August 14, 2002 * *------------------------------------------------------------------------- */ size_t H5D__layout_meta_size(const H5F_t *f, const H5O_layout_t *layout, hbool_t include_compact_data) { size_t ret_value = 0; /* Return value */ FUNC_ENTER_PACKAGE /* check args */ HDassert(f); HDassert(layout); ret_value = 1 + /* Version number */ 1; /* layout class type */ switch (layout->type) { case H5D_COMPACT: /* This information only present in older versions of message */ /* Size of raw data */ ret_value += 2; if (include_compact_data) ret_value += layout->storage.u.compact.size; /* data for compact dataset */ break; case H5D_CONTIGUOUS: /* This information only present in older versions of message */ ret_value += H5F_SIZEOF_ADDR(f); /* Address of data */ ret_value += H5F_SIZEOF_SIZE(f); /* Length of data */ break; case H5D_CHUNKED: if (layout->version < H5O_LAYOUT_VERSION_4) { /* Number of dimensions (1 byte) */ HDassert(layout->u.chunk.ndims > 0 && layout->u.chunk.ndims <= H5O_LAYOUT_NDIMS); ret_value++; /* B-tree address */ ret_value += H5F_SIZEOF_ADDR(f); /* Address of data */ /* Dimension sizes */ ret_value += layout->u.chunk.ndims * 4; } /* end if */ else { /* Chunked layout feature flags */ ret_value++; /* Number of dimensions (1 byte) */ HDassert(layout->u.chunk.ndims > 0 && layout->u.chunk.ndims <= H5O_LAYOUT_NDIMS); ret_value++; /* Encoded # of bytes for each chunk dimension */ HDassert(layout->u.chunk.enc_bytes_per_dim > 0 && layout->u.chunk.enc_bytes_per_dim <= 8); ret_value++; /* Dimension sizes */ ret_value += layout->u.chunk.ndims * (size_t)layout->u.chunk.enc_bytes_per_dim; /* Type of chunk index */ ret_value++; switch (layout->u.chunk.idx_type) { case H5D_CHUNK_IDX_BTREE: HGOTO_ERROR(H5E_OHDR, H5E_BADVALUE, 0, "v1 B-tree index type found for layout message >v3") case H5D_CHUNK_IDX_NONE: /* nothing */ break; case H5D_CHUNK_IDX_SINGLE: /* Possible filter information */ if (layout->u.chunk.flags & H5O_LAYOUT_CHUNK_SINGLE_INDEX_WITH_FILTER) { ret_value += H5F_SIZEOF_SIZE(f); /* Size of chunk (in file) */ ret_value += 4; /* Filter mask for chunk */ } /* end if */ break; case H5D_CHUNK_IDX_FARRAY: /* Fixed array creation parameters */ ret_value += H5D_FARRAY_CREATE_PARAM_SIZE; break; case H5D_CHUNK_IDX_EARRAY: /* Extensible array creation parameters */ ret_value += H5D_EARRAY_CREATE_PARAM_SIZE; break; case H5D_CHUNK_IDX_BT2: /* v2 B-tree creation parameters */ ret_value += H5D_BT2_CREATE_PARAM_SIZE; break; case H5D_CHUNK_IDX_NTYPES: default: HGOTO_ERROR(H5E_OHDR, H5E_CANTENCODE, 0, "Invalid chunk index type") } /* end switch */ /* Chunk index address */ ret_value += H5F_SIZEOF_ADDR(f); } /* end else */ break; case H5D_VIRTUAL: ret_value += H5F_SIZEOF_ADDR(f); /* Address of global heap */ ret_value += 4; /* Global heap index */ break; case H5D_LAYOUT_ERROR: case H5D_NLAYOUTS: default: HGOTO_ERROR(H5E_OHDR, H5E_CANTENCODE, 0, "Invalid layout class") } /* end switch */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5D__layout_meta_size() */ /*------------------------------------------------------------------------- * Function: H5D__layout_set_version * * Purpose: Set the version to encode a layout with. * * Return: Non-negative on success/Negative on failure * * Programmer: Vailin Choi; December 2017 * *------------------------------------------------------------------------- */ herr_t H5D__layout_set_version(H5F_t *f, H5O_layout_t *layout) { unsigned version; /* Message version */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(FAIL) /* Sanity check */ HDassert(layout); HDassert(f); /* Upgrade to the version indicated by the file's low bound if higher */ version = MAX(layout->version, H5O_layout_ver_bounds[H5F_LOW_BOUND(f)]); /* Version bounds check */ if (version > H5O_layout_ver_bounds[H5F_HIGH_BOUND(f)]) HGOTO_ERROR(H5E_DATASET, H5E_BADRANGE, FAIL, "layout version out of bounds") /* Set the message version */ layout->version = version; done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5D__layout_set_version() */ /*------------------------------------------------------------------------- * Function: H5D__layout_set_latest_indexing * * Purpose: Set the latest indexing type for a layout message * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Thursday, January 15, 2009 * *------------------------------------------------------------------------- */ herr_t H5D__layout_set_latest_indexing(H5O_layout_t *layout, const H5S_t *space, const H5D_dcpl_cache_t *dcpl_cache) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE /* Sanity check */ HDassert(layout); HDassert(space); HDassert(dcpl_cache); /* The indexing methods only apply to chunked datasets (currently) */ if (layout->type == H5D_CHUNKED) { int sndims; /* Rank of dataspace */ unsigned ndims; /* Rank of dataspace */ /* Query the dimensionality of the dataspace */ if ((sndims = H5S_GET_EXTENT_NDIMS(space)) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "invalid dataspace rank") ndims = (unsigned)sndims; /* Avoid scalar/null dataspace */ if (ndims > 0) { hsize_t max_dims[H5O_LAYOUT_NDIMS]; /* Maximum dimension sizes */ hsize_t cur_dims[H5O_LAYOUT_NDIMS]; /* Current dimension sizes */ unsigned unlim_count = 0; /* Count of unlimited max. dimensions */ hbool_t single = TRUE; /* Fulfill single chunk indexing */ unsigned u; /* Local index variable */ /* Query the dataspace's dimensions */ if (H5S_get_simple_extent_dims(space, cur_dims, max_dims) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get dataspace max. dimensions") /* Spin through the max. dimensions, looking for unlimited dimensions */ for (u = 0; u < ndims; u++) { if (max_dims[u] == H5S_UNLIMITED) unlim_count++; if (cur_dims[u] != max_dims[u] || cur_dims[u] != layout->u.chunk.dim[u]) single = FALSE; } /* end for */ /* Chunked datasets with unlimited dimension(s) */ if (unlim_count) { /* dataset with unlimited dimension(s) must be chunked */ if (1 == unlim_count) { /* Chunked dataset with only 1 unlimited dimension */ /* Set the chunk index type to an extensible array */ layout->u.chunk.idx_type = H5D_CHUNK_IDX_EARRAY; layout->storage.u.chunk.idx_type = H5D_CHUNK_IDX_EARRAY; layout->storage.u.chunk.ops = H5D_COPS_EARRAY; /* Set the extensible array creation parameters */ /* (use hard-coded defaults for now, until we give applications * control over this with a property list - QAK) */ layout->u.chunk.u.earray.cparam.max_nelmts_bits = H5D_EARRAY_MAX_NELMTS_BITS; layout->u.chunk.u.earray.cparam.idx_blk_elmts = H5D_EARRAY_IDX_BLK_ELMTS; layout->u.chunk.u.earray.cparam.sup_blk_min_data_ptrs = H5D_EARRAY_SUP_BLK_MIN_DATA_PTRS; layout->u.chunk.u.earray.cparam.data_blk_min_elmts = H5D_EARRAY_DATA_BLK_MIN_ELMTS; layout->u.chunk.u.earray.cparam.max_dblk_page_nelmts_bits = H5D_EARRAY_MAX_DBLOCK_PAGE_NELMTS_BITS; } /* end if */ else { /* Chunked dataset with > 1 unlimited dimensions */ /* Set the chunk index type to v2 B-tree */ layout->u.chunk.idx_type = H5D_CHUNK_IDX_BT2; layout->storage.u.chunk.idx_type = H5D_CHUNK_IDX_BT2; layout->storage.u.chunk.ops = H5D_COPS_BT2; /* Set the v2 B-tree creation parameters */ /* (use hard-coded defaults for now, until we give applications * control over this with a property list - QAK) */ layout->u.chunk.u.btree2.cparam.node_size = H5D_BT2_NODE_SIZE; layout->u.chunk.u.btree2.cparam.split_percent = H5D_BT2_SPLIT_PERC; layout->u.chunk.u.btree2.cparam.merge_percent = H5D_BT2_MERGE_PERC; } /* end else */ } /* end if */ else { /* Chunked dataset with fixed dimensions */ /* Check for correct condition for using "single chunk" chunk index */ if (single) { layout->u.chunk.idx_type = H5D_CHUNK_IDX_SINGLE; layout->storage.u.chunk.idx_type = H5D_CHUNK_IDX_SINGLE; layout->storage.u.chunk.ops = H5D_COPS_SINGLE; } /* end if */ else if (!dcpl_cache->pline.nused && dcpl_cache->fill.alloc_time == H5D_ALLOC_TIME_EARLY) { /* Set the chunk index type to "none" Index */ layout->u.chunk.idx_type = H5D_CHUNK_IDX_NONE; layout->storage.u.chunk.idx_type = H5D_CHUNK_IDX_NONE; layout->storage.u.chunk.ops = H5D_COPS_NONE; } /* end else-if */ else { /* Set the chunk index type to Fixed Array */ layout->u.chunk.idx_type = H5D_CHUNK_IDX_FARRAY; layout->storage.u.chunk.idx_type = H5D_CHUNK_IDX_FARRAY; layout->storage.u.chunk.ops = H5D_COPS_FARRAY; /* Set the fixed array creation parameters */ /* (use hard-coded defaults for now, until we give applications * control over this with a property list - QAK) */ layout->u.chunk.u.farray.cparam.max_dblk_page_nelmts_bits = H5D_FARRAY_MAX_DBLK_PAGE_NELMTS_BITS; } /* end else */ } /* end else */ } /* end if */ } /* end if */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5D__layout_set_latest_indexing() */ /*------------------------------------------------------------------------- * Function: H5D__layout_oh_create * * Purpose: Create layout/pline/efl information for dataset * * Return: Success: SUCCEED * Failure: FAIL * * Programmer: Quincey Koziol * Monday, July 27, 2009 * *------------------------------------------------------------------------- */ herr_t H5D__layout_oh_create(H5F_t *file, H5O_t *oh, H5D_t *dset, hid_t dapl_id) { H5O_layout_t *layout; /* Dataset's layout information */ const H5O_fill_t *fill_prop; /* Pointer to dataset's fill value information */ unsigned layout_mesg_flags; /* Flags for inserting layout message */ hbool_t layout_init = FALSE; /* Flag to indicate that chunk information was initialized */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE_TAG(dset->oloc.addr) /* Sanity checking */ HDassert(file); HDassert(oh); HDassert(dset); /* Set some local variables, for convenience */ layout = &dset->shared->layout; fill_prop = &dset->shared->dcpl_cache.fill; /* Update the filters message, if this is a chunked dataset */ if (layout->type == H5D_CHUNKED) { H5O_pline_t *pline; /* Dataset's I/O pipeline information */ pline = &dset->shared->dcpl_cache.pline; if (pline->nused > 0 && H5O_msg_append_oh(file, oh, H5O_PLINE_ID, H5O_MSG_FLAG_CONSTANT, 0, pline) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to update filter header message") } /* end if */ /* Initialize the layout information for the new dataset */ if (dset->shared->layout.ops->init && (dset->shared->layout.ops->init)(file, dset, dapl_id) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to initialize layout information") /* Indicate that the layout information was initialized */ layout_init = TRUE; /* * Allocate storage if space allocate time is early; otherwise delay * allocation until later. */ if (fill_prop->alloc_time == H5D_ALLOC_TIME_EARLY) { H5D_io_info_t io_info; io_info.dset = dset; if (H5D__alloc_storage(&io_info, H5D_ALLOC_CREATE, FALSE, NULL) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to initialize storage") } /* Update external storage message, if it's used */ if (dset->shared->dcpl_cache.efl.nused > 0) { H5O_efl_t *efl = &dset->shared->dcpl_cache.efl; /* Dataset's external file list */ H5HL_t *heap; /* Pointer to local heap for EFL file names */ size_t heap_size = H5HL_ALIGN(1); size_t u; size_t name_offset; /* Determine size of heap needed to stored the file names */ for (u = 0; u < efl->nused; ++u) heap_size += H5HL_ALIGN(HDstrlen(efl->slot[u].name) + 1); /* Create the heap for the EFL file names */ if (H5HL_create(file, heap_size, &efl->heap_addr /*out*/) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to create EFL file name heap") /* Pin the heap down in memory */ if (NULL == (heap = H5HL_protect(file, efl->heap_addr, H5AC__NO_FLAGS_SET))) HGOTO_ERROR(H5E_DATASET, H5E_CANTPROTECT, FAIL, "unable to protect EFL file name heap") /* Insert "empty" name first */ if (H5HL_insert(file, heap, (size_t)1, "", &name_offset) < 0) { H5HL_unprotect(heap); HGOTO_ERROR(H5E_DATASET, H5E_CANTINSERT, FAIL, "unable to insert file name into heap") } for (u = 0; u < efl->nused; ++u) { /* Insert file name into heap */ if (H5HL_insert(file, heap, HDstrlen(efl->slot[u].name) + 1, efl->slot[u].name, &name_offset) < 0) { H5HL_unprotect(heap); HGOTO_ERROR(H5E_DATASET, H5E_CANTINSERT, FAIL, "unable to insert file name into heap") } /* Store EFL file name offset */ efl->slot[u].name_offset = name_offset; } /* Release the heap */ if (H5HL_unprotect(heap) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTUNPROTECT, FAIL, "unable to unprotect EFL file name heap") heap = NULL; /* Insert EFL message into dataset object header */ if (H5O_msg_append_oh(file, oh, H5O_EFL_ID, H5O_MSG_FLAG_CONSTANT, 0, efl) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to update external file list message") } /* end if */ /* Create layout message */ /* (Don't make layout message constant unless allocation time is early and * non-filtered and has >0 elements, since space may not be allocated -QAK) */ /* (Note: this is relying on H5D__alloc_storage not calling H5O_msg_write during dataset creation) */ if (fill_prop->alloc_time == H5D_ALLOC_TIME_EARLY && H5D_COMPACT != layout->type && !dset->shared->dcpl_cache.pline.nused && (0 != H5S_GET_EXTENT_NPOINTS(dset->shared->space))) layout_mesg_flags = H5O_MSG_FLAG_CONSTANT; else layout_mesg_flags = 0; /* Store VDS info in global heap */ if (H5D_VIRTUAL == layout->type) if (H5D__virtual_store_layout(file, layout) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTSET, FAIL, "unable to store VDS info") /* Create layout message */ if (H5O_msg_append_oh(file, oh, H5O_LAYOUT_ID, layout_mesg_flags, 0, layout) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to update layout") done: /* Error cleanup */ if (ret_value < 0) if (layout_init) /* Destroy any cached layout information for the dataset */ if (dset->shared->layout.ops->dest && (dset->shared->layout.ops->dest)(dset) < 0) HDONE_ERROR(H5E_DATASET, H5E_CANTRELEASE, FAIL, "unable to destroy layout info") FUNC_LEAVE_NOAPI_TAG(ret_value) } /* end H5D__layout_oh_create() */ /*------------------------------------------------------------------------- * Function: H5D__layout_oh_read * * Purpose: Read layout/pline/efl information for dataset * * Return: Success: SUCCEED * Failure: FAIL * * Programmer: Quincey Koziol * Monday, July 27, 2009 * *------------------------------------------------------------------------- */ herr_t H5D__layout_oh_read(H5D_t *dataset, hid_t dapl_id, H5P_genplist_t *plist) { htri_t msg_exists; /* Whether a particular type of message exists */ hbool_t layout_copied = FALSE; /* Flag to indicate that layout message was copied */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE /* Sanity checking */ HDassert(dataset); HDassert(plist); /* Get the optional filters message */ if ((msg_exists = H5O_msg_exists(&(dataset->oloc), H5O_PLINE_ID)) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't check if message exists") if (msg_exists) { /* Retrieve the I/O pipeline message */ if (NULL == H5O_msg_read(&(dataset->oloc), H5O_PLINE_ID, &dataset->shared->dcpl_cache.pline)) HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't retrieve message") /* Set the I/O pipeline info in the property list */ if (H5P_set(plist, H5O_CRT_PIPELINE_NAME, &dataset->shared->dcpl_cache.pline) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTSET, FAIL, "can't set pipeline") } /* end if */ /* * Get the raw data layout info. It's actually stored in two locations: * the storage message of the dataset (dataset->storage) and certain * values are copied to the dataset create plist so the user can query * them. */ if (NULL == H5O_msg_read(&(dataset->oloc), H5O_LAYOUT_ID, &(dataset->shared->layout))) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to read data layout message") layout_copied = TRUE; /* Check for external file list message (which might not exist) */ if ((msg_exists = H5O_msg_exists(&(dataset->oloc), H5O_EFL_ID)) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't check if message exists") if (msg_exists) { /* Retrieve the EFL message */ if (NULL == H5O_msg_read(&(dataset->oloc), H5O_EFL_ID, &dataset->shared->dcpl_cache.efl)) HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't retrieve message") /* Set the EFL info in the property list */ if (H5P_set(plist, H5D_CRT_EXT_FILE_LIST_NAME, &dataset->shared->dcpl_cache.efl) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTSET, FAIL, "can't set external file list") /* Set the dataset's I/O operations */ dataset->shared->layout.ops = H5D_LOPS_EFL; } /* end if */ /* Sanity check that the layout operations are set up */ HDassert(dataset->shared->layout.ops); /* Initialize the layout information for the dataset */ if (dataset->shared->layout.ops->init && (dataset->shared->layout.ops->init)(dataset->oloc.file, dataset, dapl_id) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to initialize layout information") /* Adjust chunk dimensions to omit datatype size (in last dimension) for creation property */ if (H5D_CHUNKED == dataset->shared->layout.type) dataset->shared->layout.u.chunk.ndims--; /* 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") /* Set chunk sizes */ if (H5D_CHUNKED == dataset->shared->layout.type) if (H5D__chunk_set_sizes(dataset) < 0) HGOTO_ERROR(H5E_DATASET, H5E_BADVALUE, FAIL, "unable to set chunk sizes") done: if (ret_value < 0 && layout_copied) if (H5O_msg_reset(H5O_LAYOUT_ID, &dataset->shared->layout) < 0) HDONE_ERROR(H5E_DATASET, H5E_CANTRESET, FAIL, "unable to reset layout info") FUNC_LEAVE_NOAPI(ret_value) } /* end H5D__layout_oh_read() */ /*------------------------------------------------------------------------- * Function: H5D__layout_oh_write * * Purpose: Write layout information for dataset * * Return: Success: SUCCEED * Failure: FAIL * * Programmer: Quincey Koziol * Monday, July 27, 2009 * *------------------------------------------------------------------------- */ herr_t H5D__layout_oh_write(const H5D_t *dataset, H5O_t *oh, unsigned update_flags) { htri_t msg_exists; /* Whether the layout message exists */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE /* Sanity checking */ HDassert(dataset); HDassert(oh); /* Check if the layout message has been added to the dataset's header */ if ((msg_exists = H5O_msg_exists_oh(oh, H5O_LAYOUT_ID)) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "unable to check if layout message exists") if (msg_exists) { /* Write the layout message to the dataset's header */ if (H5O_msg_write_oh(dataset->oloc.file, oh, H5O_LAYOUT_ID, 0, update_flags, &dataset->shared->layout) < 0) HGOTO_ERROR(H5E_DATASET, H5E_WRITEERROR, FAIL, "unable to update layout message") } /* end if */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5D__layout_oh_write() */