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H5VLnative_dataset.c
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H5VLnative_dataset.c
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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 *
* [email protected]. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Purpose: Dataset callbacks for the native VOL connector
*
*/
/****************/
/* Module Setup */
/****************/
#define H5D_FRIEND /* Suppress error about including H5Dpkg */
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5CXprivate.h" /* API Contexts */
#include "H5Dpkg.h" /* Datasets */
#include "H5Eprivate.h" /* Error handling */
#include "H5Fprivate.h" /* Files */
#include "H5Gprivate.h" /* Groups */
#include "H5Iprivate.h" /* IDs */
#include "H5MMprivate.h" /* Memory management */
#include "H5Pprivate.h" /* Property lists */
#include "H5Sprivate.h" /* Dataspaces */
#include "H5VLprivate.h" /* Virtual Object Layer */
#include "H5VLnative_private.h" /* Native VOL connector */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Local Prototypes */
/********************/
/* Helper routines for read/write API calls */
static herr_t H5VL__native_dataset_io_setup(size_t count, void *obj[], hid_t mem_type_id[],
hid_t mem_space_id[], hid_t file_space_id[], hid_t dxpl_id,
H5_flexible_const_ptr_t buf[], H5D_dset_io_info_t *dinfo);
static herr_t H5VL__native_dataset_io_cleanup(size_t count, hid_t mem_space_id[], hid_t file_space_id[],
H5D_dset_io_info_t *dinfo);
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/*-------------------------------------------------------------------------
* Function: H5VL__native_dataset_io_setup
*
* Purpose: Set up file and memory dataspaces for dataset I/O operation
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
static herr_t
H5VL__native_dataset_io_setup(size_t count, void *obj[], hid_t mem_type_id[], hid_t mem_space_id[],
hid_t file_space_id[], hid_t dxpl_id, H5_flexible_const_ptr_t buf[],
H5D_dset_io_info_t *dinfo)
{
H5F_shared_t *f_sh;
size_t i;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
/* Sanity checks */
assert(dinfo);
/* Get shared file */
f_sh = H5F_SHARED(((H5D_t *)obj[0])->oloc.file);
/* Iterate over datasets */
for (i = 0; i < count; i++) {
/* Initialize fields not set here to prevent use of uninitialized */
memset(&dinfo[i].layout_ops, 0, sizeof(dinfo[i].layout_ops));
memset(&dinfo[i].io_ops, 0, sizeof(dinfo[i].io_ops));
memset(&dinfo[i].layout_io_info, 0, sizeof(dinfo[i].layout_io_info));
memset(&dinfo[i].type_info, 0, sizeof(dinfo[i].type_info));
dinfo[i].store = NULL;
dinfo[i].layout = NULL;
dinfo[i].nelmts = 0;
dinfo[i].skip_io = false;
/* Set up dset */
dinfo[i].dset = (H5D_t *)obj[i];
assert(dinfo[i].dset);
/* Check dataset's file pointer is valid */
if (NULL == dinfo[i].dset->oloc.file)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "dataset is not associated with a file");
if (f_sh != H5F_SHARED(dinfo[i].dset->oloc.file))
HGOTO_ERROR(H5E_ARGS, H5E_UNSUPPORTED, FAIL,
"different files detected in multi dataset I/O request");
/* Set up memory type */
if (NULL == (dinfo[i].mem_type = (const H5T_t *)H5I_object_verify(mem_type_id[i], H5I_DATATYPE)))
HGOTO_ERROR(H5E_DATASET, H5E_BADTYPE, FAIL, "invalid datatype");
/* Set up file dataspace */
if (H5S_ALL == file_space_id[i])
/* Use dataspace for dataset */
dinfo[i].file_space = dinfo[i].dset->shared->space;
else if (H5S_BLOCK == file_space_id[i])
HGOTO_ERROR(H5E_DATASET, H5E_BADTYPE, FAIL, "H5S_BLOCK is not allowed for file dataspace");
else if (H5S_PLIST == file_space_id[i]) {
H5P_genplist_t *plist; /* Property list pointer */
H5S_t *space; /* Dataspace to hold selection */
/* Get the plist structure */
if (NULL == (plist = H5P_object_verify(dxpl_id, H5P_DATASET_XFER)))
HGOTO_ERROR(H5E_DATASET, H5E_BADID, FAIL, "bad dataset transfer property list");
/* Get a pointer to the file space in the property list */
if (H5P_peek(plist, H5D_XFER_DSET_IO_SEL_NAME, &space) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "error getting dataset I/O selection");
/* Use dataspace for dataset */
dinfo[i].file_space = dinfo[i].dset->shared->space;
/* Copy, but share, selection from property list to dataset's dataspace */
if (H5S_SELECT_COPY(dinfo[i].file_space, space, true) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTCOPY, FAIL, "can't copy dataset I/O selection");
} /* end else-if */
else {
/* Get the dataspace pointer */
if (NULL == (dinfo[i].file_space = (H5S_t *)H5I_object_verify(file_space_id[i], H5I_DATASPACE)))
HGOTO_ERROR(H5E_DATASET, H5E_BADTYPE, FAIL, "file_space_id is not a dataspace ID");
} /* end else */
/* Get dataspace for memory buffer */
if (H5S_ALL == mem_space_id[i])
dinfo[i].mem_space = dinfo[i].file_space;
else if (H5S_BLOCK == mem_space_id[i]) {
hsize_t nelmts; /* # of selected elements in file */
/* Get the # of elements selected */
nelmts = H5S_GET_SELECT_NPOINTS(dinfo[i].file_space);
/* Check for any elements */
if (nelmts > 0) {
/* Create a 1-D dataspace of the same # of elements */
if (NULL == (dinfo[i].mem_space = H5S_create_simple(1, &nelmts, NULL)))
HGOTO_ERROR(H5E_DATASET, H5E_CANTCREATE, FAIL,
"unable to create simple memory dataspace");
} /* end if */
else {
/* Create a NULL dataspace of the same # of elements */
if (NULL == (dinfo[i].mem_space = H5S_create(H5S_NULL)))
HGOTO_ERROR(H5E_DATASET, H5E_CANTCREATE, FAIL, "unable to create NULL memory dataspace");
} /* end else */
} /* end if */
else if (H5S_PLIST == mem_space_id[i])
HGOTO_ERROR(H5E_DATASET, H5E_BADTYPE, FAIL, "H5S_PLIST is not allowed for memory dataspace");
else {
/* Get the dataspace pointer */
if (NULL == (dinfo[i].mem_space = (H5S_t *)H5I_object_verify(mem_space_id[i], H5I_DATASPACE)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "mem_space_id is not a dataspace ID");
} /* end else */
/* Check for valid selections */
if (H5S_SELECT_VALID(dinfo[i].file_space) != true)
HGOTO_ERROR(H5E_DATASPACE, H5E_BADRANGE, FAIL,
"selection + offset not within extent for file dataspace");
if (H5S_SELECT_VALID(dinfo[i].mem_space) != true)
HGOTO_ERROR(H5E_DATASPACE, H5E_BADRANGE, FAIL,
"selection + offset not within extent for memory dataspace");
/* Set up buf */
dinfo[i].buf = buf[i];
}
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_dataset_io_setup() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_dataset_io_cleanup
*
* Purpose: Frees memory allocated by H5VL__native_dataset_io_setup()
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
static herr_t
H5VL__native_dataset_io_cleanup(size_t count, hid_t mem_space_id[], hid_t file_space_id[],
H5D_dset_io_info_t *dinfo)
{
size_t i;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
/* Sanity checks */
assert(dinfo);
/* Iterate over datasets */
for (i = 0; i < count; i++) {
/* Free memory dataspace if it was created. Use HDONE_ERROR in this function so we always
* try to free everything we can. */
if (H5S_BLOCK == mem_space_id[i] && dinfo[i].mem_space)
if (H5S_close(dinfo[i].mem_space) < 0)
HDONE_ERROR(H5E_DATASET, H5E_CANTRELEASE, FAIL,
"unable to release temporary memory dataspace for H5S_BLOCK");
/* Reset file dataspace selection if it was copied from the property list */
if (H5S_PLIST == file_space_id[i] && dinfo[i].file_space)
if (H5S_select_all(dinfo[i].file_space, true) < 0)
HDONE_ERROR(H5E_DATASET, H5E_CANTRELEASE, FAIL,
"unable to release file dataspace selection for H5S_PLIST");
}
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_dataset_io_cleanup() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_dataset_create
*
* Purpose: Handles the dataset create callback
*
* Return: Success: dataset pointer
* Failure: NULL
*
*-------------------------------------------------------------------------
*/
void *
H5VL__native_dataset_create(void *obj, const H5VL_loc_params_t *loc_params, const char *name, hid_t lcpl_id,
hid_t type_id, hid_t space_id, hid_t dcpl_id, hid_t dapl_id,
hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req)
{
H5G_loc_t loc; /* Object location to insert dataset into */
H5D_t *dset = NULL; /* New dataset's info */
const H5S_t *space; /* Dataspace for dataset */
void *ret_value;
FUNC_ENTER_PACKAGE
/* Check arguments */
if (H5G_loc_real(obj, loc_params->obj_type, &loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a file or file object");
if (H5I_DATATYPE != H5I_get_type(type_id))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a datatype ID");
if (NULL == (space = (const H5S_t *)H5I_object_verify(space_id, H5I_DATASPACE)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a dataspace ID");
/* H5Dcreate_anon */
if (NULL == name) {
/* build and open the new dataset */
if (NULL == (dset = H5D__create(loc.oloc->file, type_id, space, dcpl_id, dapl_id)))
HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, NULL, "unable to create dataset");
} /* end if */
/* H5Dcreate2 */
else {
/* Create the new dataset & get its ID */
if (NULL == (dset = H5D__create_named(&loc, name, type_id, space, lcpl_id, dcpl_id, dapl_id)))
HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, NULL, "unable to create dataset");
} /* end else */
ret_value = (void *)dset;
done:
if (NULL == name) {
/* Release the dataset's object header, if it was created */
if (dset) {
H5O_loc_t *oloc; /* Object location for dataset */
/* Get the new dataset's object location */
if (NULL == (oloc = H5D_oloc(dset)))
HDONE_ERROR(H5E_DATASET, H5E_CANTGET, NULL, "unable to get object location of dataset");
/* Decrement refcount on dataset's object header in memory */
if (H5O_dec_rc_by_loc(oloc) < 0)
HDONE_ERROR(H5E_DATASET, H5E_CANTDEC, NULL,
"unable to decrement refcount on newly created object");
} /* end if */
} /* end if */
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_dataset_create() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_dataset_open
*
* Purpose: Handles the dataset open callback
*
* Return: Success: dataset pointer
* Failure: NULL
*
*-------------------------------------------------------------------------
*/
void *
H5VL__native_dataset_open(void *obj, const H5VL_loc_params_t *loc_params, const char *name, hid_t dapl_id,
hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req)
{
H5D_t *dset = NULL;
H5G_loc_t loc; /* Object location of group */
void *ret_value = NULL;
FUNC_ENTER_PACKAGE
if (H5G_loc_real(obj, loc_params->obj_type, &loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a file or file object");
/* Open the dataset */
if (NULL == (dset = H5D__open_name(&loc, name, dapl_id)))
HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, NULL, "unable to open dataset");
ret_value = (void *)dset;
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_dataset_open() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_dataset_read
*
* Purpose: Handles the dataset read callback
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_dataset_read(size_t count, void *obj[], hid_t mem_type_id[], hid_t mem_space_id[],
hid_t file_space_id[], hid_t dxpl_id, void *buf[], void H5_ATTR_UNUSED **req)
{
H5D_dset_io_info_t dinfo_local;
H5D_dset_io_info_t *dinfo = &dinfo_local;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
/* Allocate dataset info array if necessary */
if (count > 1)
if (NULL == (dinfo = (H5D_dset_io_info_t *)H5MM_malloc(count * sizeof(H5D_dset_io_info_t))))
HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "couldn't allocate dset info array buffer");
/* Get file & memory dataspaces */
if (H5VL__native_dataset_io_setup(count, obj, mem_type_id, mem_space_id, file_space_id, dxpl_id,
(H5_flexible_const_ptr_t *)buf, dinfo) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to set up file and memory dataspaces");
/* Set DXPL for operation */
H5CX_set_dxpl(dxpl_id);
/* Read raw data. Call H5D__read directly in single dset case. */
if (H5D__read(count, dinfo) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_READERROR, FAIL, "can't read data");
done:
/* Clean up */
if (H5VL__native_dataset_io_cleanup(count, mem_space_id, file_space_id, dinfo) < 0)
HDONE_ERROR(H5E_DATASET, H5E_CANTRELEASE, FAIL, "unable to release dataset info");
if (dinfo != &dinfo_local)
H5MM_xfree(dinfo);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_dataset_read() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_dataset_write
*
* Purpose: Handles the dataset write callback
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_dataset_write(size_t count, void *obj[], hid_t mem_type_id[], hid_t mem_space_id[],
hid_t file_space_id[], hid_t dxpl_id, const void *buf[], void H5_ATTR_UNUSED **req)
{
H5D_dset_io_info_t dinfo_local;
H5D_dset_io_info_t *dinfo = &dinfo_local;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
/* Allocate dataset info array if necessary */
if (count > 1)
if (NULL == (dinfo = (H5D_dset_io_info_t *)H5MM_malloc(count * sizeof(H5D_dset_io_info_t))))
HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "couldn't allocate dset info array buffer");
/* Get file & memory dataspaces */
if (H5VL__native_dataset_io_setup(count, obj, mem_type_id, mem_space_id, file_space_id, dxpl_id,
(H5_flexible_const_ptr_t *)buf, dinfo) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to set up file and memory dataspaces");
/* Set DXPL for operation */
H5CX_set_dxpl(dxpl_id);
/* Write raw data. Call H5D__write directly in single dset case. */
if (H5D__write(count, dinfo) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_WRITEERROR, FAIL, "can't write data");
done:
/* Clean up */
if (H5VL__native_dataset_io_cleanup(count, mem_space_id, file_space_id, dinfo) < 0)
HDONE_ERROR(H5E_DATASET, H5E_CANTRELEASE, FAIL, "unable to release dataset info");
if (dinfo != &dinfo_local)
H5MM_xfree(dinfo);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_dataset_write() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_dataset_get
*
* Purpose: Handles the dataset get callback
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_dataset_get(void *obj, H5VL_dataset_get_args_t *args, hid_t H5_ATTR_UNUSED dxpl_id,
void H5_ATTR_UNUSED **req)
{
H5D_t *dset = (H5D_t *)obj;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch (args->op_type) {
/* H5Dget_space */
case H5VL_DATASET_GET_SPACE: {
if ((args->args.get_space.space_id = H5D__get_space(dset)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get space ID of dataset");
break;
}
/* H5Dget_space_status */
case H5VL_DATASET_GET_SPACE_STATUS: {
if (H5D__get_space_status(dset, args->args.get_space_status.status) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to get space status");
break;
}
/* H5Dget_type */
case H5VL_DATASET_GET_TYPE: {
if ((args->args.get_type.type_id = H5D__get_type(dset)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get datatype ID of dataset");
break;
}
/* H5Dget_create_plist */
case H5VL_DATASET_GET_DCPL: {
if ((args->args.get_dcpl.dcpl_id = H5D_get_create_plist(dset)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get creation property list for dataset");
break;
}
/* H5Dget_access_plist */
case H5VL_DATASET_GET_DAPL: {
if ((args->args.get_dapl.dapl_id = H5D_get_access_plist(dset)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get access property list for dataset");
break;
}
/* H5Dget_storage_size */
case H5VL_DATASET_GET_STORAGE_SIZE: {
if (H5D__get_storage_size(dset, args->args.get_storage_size.storage_size) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get size of dataset's storage");
break;
}
default:
HGOTO_ERROR(H5E_VOL, H5E_CANTGET, FAIL, "can't get this type of information from dataset");
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_dataset_get() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_dataset_specific
*
* Purpose: Handles the dataset specific callback
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_dataset_specific(void *obj, H5VL_dataset_specific_args_t *args, hid_t H5_ATTR_UNUSED dxpl_id,
void H5_ATTR_UNUSED **req)
{
H5D_t *dset = (H5D_t *)obj;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch (args->op_type) {
/* H5Dset_extent (H5Dextend - deprecated) */
case H5VL_DATASET_SET_EXTENT: {
if (H5D__set_extent(dset, args->args.set_extent.size) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTSET, FAIL, "unable to set extent of dataset");
break;
}
/* H5Dflush */
case H5VL_DATASET_FLUSH: {
if (H5D__flush(dset, args->args.flush.dset_id) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTFLUSH, FAIL, "unable to flush dataset");
break;
}
/* H5Drefresh */
case H5VL_DATASET_REFRESH: {
if (H5D__refresh(dset, args->args.refresh.dset_id) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTLOAD, FAIL, "unable to refresh dataset");
break;
}
default:
HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "invalid specific operation");
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_dataset_specific() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_dataset_optional
*
* Purpose: Handles the dataset optional callback
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_dataset_optional(void *obj, H5VL_optional_args_t *args, hid_t dxpl_id, void H5_ATTR_UNUSED **req)
{
H5D_t *dset = (H5D_t *)obj; /* Dataset */
H5VL_native_dataset_optional_args_t *opt_args = args->args; /* Pointer to native operation's arguments */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
/* Sanity checks */
assert(dset);
/* Set DXPL for operation */
H5CX_set_dxpl(dxpl_id);
switch (args->op_type) {
/* H5Dformat_convert */
case H5VL_NATIVE_DATASET_FORMAT_CONVERT: {
switch (dset->shared->layout.type) {
case H5D_CHUNKED:
/* Convert the chunk indexing type to version 1 B-tree if not */
if (dset->shared->layout.u.chunk.idx_type != H5D_CHUNK_IDX_BTREE)
if (H5D__format_convert(dset) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTLOAD, FAIL,
"unable to downgrade chunk indexing type for dataset");
break;
case H5D_CONTIGUOUS:
case H5D_COMPACT:
/* Downgrade the layout version to 3 if greater than 3 */
if (dset->shared->layout.version > H5O_LAYOUT_VERSION_DEFAULT)
if (H5D__format_convert(dset) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTLOAD, FAIL,
"unable to downgrade layout version for dataset");
break;
case H5D_VIRTUAL:
/* Nothing to do even though layout is version 4 */
break;
case H5D_LAYOUT_ERROR:
case H5D_NLAYOUTS:
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid dataset layout type");
default:
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "unknown dataset layout type");
} /* end switch */
break;
}
/* H5Dget_chunk_index_type */
case H5VL_NATIVE_DATASET_GET_CHUNK_INDEX_TYPE: {
/* Make sure the dataset is chunked */
if (H5D_CHUNKED != dset->shared->layout.type)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a chunked dataset");
/* Get the chunk indexing type */
*opt_args->get_chunk_idx_type.idx_type = dset->shared->layout.u.chunk.idx_type;
break;
}
/* H5Dget_chunk_storage_size */
case H5VL_NATIVE_DATASET_GET_CHUNK_STORAGE_SIZE: {
H5VL_native_dataset_get_chunk_storage_size_t *gcss_args = &opt_args->get_chunk_storage_size;
/* 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__get_chunk_storage_size(dset, gcss_args->offset, gcss_args->size) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get storage size of chunk");
break;
}
/* H5Dget_num_chunks */
case H5VL_NATIVE_DATASET_GET_NUM_CHUNKS: {
H5VL_native_dataset_get_num_chunks_t *gnc_args = &opt_args->get_num_chunks;
const H5S_t *space = NULL;
assert(dset->shared);
assert(dset->shared->space);
/* When default dataspace is given, use the dataset's dataspace */
if (gnc_args->space_id == H5S_ALL)
space = dset->shared->space;
else /* otherwise, use the given space ID */
if (NULL == (space = (const H5S_t *)H5I_object_verify(gnc_args->space_id, H5I_DATASPACE)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a valid dataspace ID");
/* 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__get_num_chunks(dset, space, gnc_args->nchunks) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get number of chunks");
break;
}
/* H5Dget_chunk_info */
case H5VL_NATIVE_DATASET_GET_CHUNK_INFO_BY_IDX: {
H5VL_native_dataset_get_chunk_info_by_idx_t *gcibi_args = &opt_args->get_chunk_info_by_idx;
const H5S_t *space;
assert(dset->shared);
assert(dset->shared->space);
/* When default dataspace is given, use the dataset's dataspace */
if (gcibi_args->space_id == H5S_ALL)
space = dset->shared->space;
else /* otherwise, use the given space ID */
if (NULL == (space = (const H5S_t *)H5I_object_verify(gcibi_args->space_id, H5I_DATASPACE)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a valid dataspace ID");
/* 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__get_chunk_info(dset, space, gcibi_args->chk_index, gcibi_args->offset,
gcibi_args->filter_mask, gcibi_args->addr, gcibi_args->size) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get chunk info by index");
break;
}
/* H5Dget_chunk_info_by_coord */
case H5VL_NATIVE_DATASET_GET_CHUNK_INFO_BY_COORD: {
H5VL_native_dataset_get_chunk_info_by_coord_t *gcibc_args = &opt_args->get_chunk_info_by_coord;
assert(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__get_chunk_info_by_coord(dset, gcibc_args->offset, gcibc_args->filter_mask,
gcibc_args->addr, gcibc_args->size) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL,
"can't get chunk info by its logical coordinates");
break;
}
/* H5Dread_chunk */
case H5VL_NATIVE_DATASET_CHUNK_READ: {
H5VL_native_dataset_chunk_read_t *chunk_read_args = &opt_args->chunk_read;
hsize_t offset_copy[H5O_LAYOUT_NDIMS]; /* Internal copy of chunk offset */
/* Check arguments */
if (NULL == dset->oloc.file)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "dataset is not associated with a file");
if (H5D_CHUNKED != dset->shared->layout.type)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a chunked dataset");
/* Copy the user's offset array so we can be sure it's terminated properly.
* (we don't want to mess with the user's buffer).
*/
if (H5D__chunk_get_offset_copy(dset, chunk_read_args->offset, offset_copy) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTCOPY, FAIL, "failure to copy offset array");
/* Read the raw chunk */
if (H5D__chunk_direct_read(dset, offset_copy, &chunk_read_args->filters, chunk_read_args->buf) <
0)
HGOTO_ERROR(H5E_DATASET, H5E_READERROR, FAIL, "can't read unprocessed chunk data");
break;
}
/* H5Dwrite_chunk */
case H5VL_NATIVE_DATASET_CHUNK_WRITE: {
H5VL_native_dataset_chunk_write_t *chunk_write_args = &opt_args->chunk_write;
hsize_t offset_copy[H5O_LAYOUT_NDIMS]; /* Internal copy of chunk offset */
/* Check arguments */
if (NULL == dset->oloc.file)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "dataset is not associated with a file");
if (H5D_CHUNKED != dset->shared->layout.type)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a chunked dataset");
/* Copy the user's offset array so we can be sure it's terminated properly.
* (we don't want to mess with the user's buffer).
*/
if (H5D__chunk_get_offset_copy(dset, chunk_write_args->offset, offset_copy) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTCOPY, FAIL, "failure to copy offset array");
/* Write chunk */
if (H5D__chunk_direct_write(dset, chunk_write_args->filters, offset_copy, chunk_write_args->size,
chunk_write_args->buf) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_WRITEERROR, FAIL, "can't write unprocessed chunk data");
break;
}
/* H5Dvlen_get_buf_size */
case H5VL_NATIVE_DATASET_GET_VLEN_BUF_SIZE: {
H5VL_native_dataset_get_vlen_buf_size_t *gvbs_args = &opt_args->get_vlen_buf_size;
if (H5D__vlen_get_buf_size(dset, gvbs_args->type_id, gvbs_args->space_id, gvbs_args->size) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get size of vlen buf needed");
break;
}
/* H5Dget_offset */
case H5VL_NATIVE_DATASET_GET_OFFSET: {
/* Get offset */
*opt_args->get_offset.offset = H5D__get_offset(dset);
break;
}
/* H5Dchunk_iter */
case H5VL_NATIVE_DATASET_CHUNK_ITER: {
/* Sanity check */
assert(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 ((ret_value = H5D__chunk_iter(dset, opt_args->chunk_iter.op, opt_args->chunk_iter.op_data)) <
0)
HERROR(H5E_DATASET, H5E_BADITER, "chunk iteration failed");
break;
}
default:
HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "invalid optional operation");
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_dataset_optional() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_dataset_close
*
* Purpose: Handles the dataset close callback
*
* Return: Success: SUCCEED
* Failure: FAIL (dataset will not be closed)
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_dataset_close(void *dset, hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
if (H5D_close((H5D_t *)dset) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTDEC, FAIL, "can't close dataset");
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_dataset_close() */