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H5D.c
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H5D.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 *
* 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 "H5CXprivate.h" /* API Contexts */
#include "H5Dpkg.h" /* Datasets */
#include "H5Eprivate.h" /* Error handling */
#include "H5ESprivate.h" /* Event Sets */
#include "H5FLprivate.h" /* Free lists */
#include "H5Iprivate.h" /* IDs */
#include "H5MMprivate.h" /* Memory management */
#include "H5VLprivate.h" /* Virtual Object Layer */
#include "H5VLnative_private.h" /* Native VOL connector */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Local Prototypes */
/********************/
/* Helper routines for sync/async API calls */
static hid_t H5D__create_api_common(hid_t loc_id, const char *name, hid_t type_id, hid_t space_id,
hid_t lcpl_id, hid_t dcpl_id, hid_t dapl_id, void **token_ptr,
H5VL_object_t **_vol_obj_ptr);
static hid_t H5D__open_api_common(hid_t loc_id, const char *name, hid_t dapl_id, void **token_ptr,
H5VL_object_t **_vol_obj_ptr);
static hid_t H5D__get_space_api_common(hid_t dset_id, void **token_ptr, H5VL_object_t **_vol_obj_ptr);
static herr_t H5D__read_api_common(size_t count, hid_t dset_id[], hid_t mem_type_id[], hid_t mem_space_id[],
hid_t file_space_id[], hid_t dxpl_id, void *buf[], void **token_ptr,
H5VL_object_t **_vol_obj_ptr);
static herr_t H5D__write_api_common(size_t count, hid_t dset_id[], hid_t mem_type_id[], hid_t mem_space_id[],
hid_t file_space_id[], hid_t dxpl_id, const void *buf[], void **token_ptr,
H5VL_object_t **_vol_obj_ptr);
static herr_t H5D__set_extent_api_common(hid_t dset_id, const hsize_t size[], void **token_ptr,
H5VL_object_t **_vol_obj_ptr);
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/* Declare extern free list to manage the H5S_sel_iter_t struct */
H5FL_EXTERN(H5S_sel_iter_t);
/* Declare extern the free list to manage blocks of type conversion data */
H5FL_BLK_EXTERN(type_conv);
/*******************/
/* Local Variables */
/*******************/
/*-------------------------------------------------------------------------
* Function: H5D__create_api_common
*
* Purpose: This is the common function for creating HDF5 datasets.
*
* Return: Success: A dataset ID
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
static hid_t
H5D__create_api_common(hid_t loc_id, const char *name, hid_t type_id, hid_t space_id, hid_t lcpl_id,
hid_t dcpl_id, hid_t dapl_id, void **token_ptr, H5VL_object_t **_vol_obj_ptr)
{
void *dset = NULL; /* New dataset's info */
H5VL_object_t *tmp_vol_obj = NULL; /* Object for loc_id */
H5VL_object_t **vol_obj_ptr =
(_vol_obj_ptr ? _vol_obj_ptr : &tmp_vol_obj); /* Ptr to object ptr for loc_id */
H5VL_loc_params_t loc_params; /* Location parameters for object access */
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_PACKAGE
/* Check arguments */
if (!name)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5I_INVALID_HID, "name parameter cannot be NULL");
if (!*name)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5I_INVALID_HID, "name parameter cannot be an empty string");
/* Set up object access arguments */
if (H5VL_setup_acc_args(loc_id, H5P_CLS_DACC, true, &dapl_id, vol_obj_ptr, &loc_params) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTSET, H5I_INVALID_HID, "can't set object access arguments");
/* Get link creation property list */
if (H5P_DEFAULT == lcpl_id)
lcpl_id = H5P_LINK_CREATE_DEFAULT;
else if (true != H5P_isa_class(lcpl_id, H5P_LINK_CREATE))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "lcpl_id is not a link creation property list");
/* Get dataset creation property list */
if (H5P_DEFAULT == dcpl_id)
dcpl_id = H5P_DATASET_CREATE_DEFAULT;
else if (true != H5P_isa_class(dcpl_id, H5P_DATASET_CREATE))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID,
"dcpl_id is not a dataset create property list ID");
/* Set the DCPL for the API context */
H5CX_set_dcpl(dcpl_id);
/* Set the LCPL for the API context */
H5CX_set_lcpl(lcpl_id);
/* Create the dataset */
if (NULL == (dset = H5VL_dataset_create(*vol_obj_ptr, &loc_params, name, lcpl_id, type_id, space_id,
dcpl_id, dapl_id, H5P_DATASET_XFER_DEFAULT, token_ptr)))
HGOTO_ERROR(H5E_DATASET, H5E_CANTCREATE, H5I_INVALID_HID, "unable to create dataset");
/* Get an ID for the dataset */
if ((ret_value = H5VL_register(H5I_DATASET, dset, (*vol_obj_ptr)->connector, true)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTREGISTER, H5I_INVALID_HID, "unable to register dataset");
done:
if (H5I_INVALID_HID == ret_value)
if (dset && H5VL_dataset_close(*vol_obj_ptr, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL) < 0)
HDONE_ERROR(H5E_DATASET, H5E_CLOSEERROR, H5I_INVALID_HID, "unable to release dataset");
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5D__create_api_common() */
/*-------------------------------------------------------------------------
* Function: H5Dcreate2
*
* Purpose: Creates a new dataset named NAME at LOC_ID, opens the
* dataset for access, and associates with that dataset constant
* and initial persistent properties including the type of each
* datapoint as stored in the file (TYPE_ID), the size of the
* dataset (SPACE_ID), and other initial miscellaneous
* properties (DCPL_ID).
*
* All arguments are copied into the dataset, so the caller is
* allowed to derive new types, dataspaces, and creation
* parameters from the old ones and reuse them in calls to
* create other datasets.
*
* Return: Success: The object ID of the new dataset. At this
* point, the dataset is ready to receive its
* raw data. Attempting to read raw data from
* the dataset will probably return the fill
* value. The dataset should be closed when the
* caller is no longer interested in it.
*
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
hid_t
H5Dcreate2(hid_t loc_id, const char *name, hid_t type_id, hid_t space_id, hid_t lcpl_id, hid_t dcpl_id,
hid_t dapl_id)
{
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
H5TRACE7("i", "i*siiiii", loc_id, name, type_id, space_id, lcpl_id, dcpl_id, dapl_id);
/* Create the dataset synchronously */
if ((ret_value = H5D__create_api_common(loc_id, name, type_id, space_id, lcpl_id, dcpl_id, dapl_id, NULL,
NULL)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTCREATE, H5I_INVALID_HID, "unable to synchronously create dataset");
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Dcreate2() */
/*-------------------------------------------------------------------------
* Function: H5Dcreate_async
*
* Purpose: Asynchronous version of H5Dcreate
*
* Return: Success: A dataset ID
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
hid_t
H5Dcreate_async(const char *app_file, const char *app_func, unsigned app_line, hid_t loc_id, const char *name,
hid_t type_id, hid_t space_id, hid_t lcpl_id, hid_t dcpl_id, hid_t dapl_id, hid_t es_id)
{
H5VL_object_t *vol_obj = NULL; /* Object for loc_id */
void *token = NULL; /* Request token for async operation */
void **token_ptr = H5_REQUEST_NULL; /* Pointer to request token for async operation */
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
H5TRACE11("i", "*s*sIui*siiiiii", app_file, app_func, app_line, loc_id, name, type_id, space_id, lcpl_id,
dcpl_id, dapl_id, es_id);
/* Set up request token pointer for asynchronous operation */
if (H5ES_NONE != es_id)
token_ptr = &token; /* Point at token for VOL connector to set up */
/* Create the dataset asynchronously */
if ((ret_value = H5D__create_api_common(loc_id, name, type_id, space_id, lcpl_id, dcpl_id, dapl_id,
token_ptr, &vol_obj)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTCREATE, H5I_INVALID_HID, "unable to asynchronously create dataset");
/* If a token was created, add the token to the event set */
if (NULL != token)
/* clang-format off */
if (H5ES_insert(es_id, vol_obj->connector, token,
H5ARG_TRACE11(__func__, "*s*sIui*siiiiii", app_file, app_func, app_line, loc_id, name, type_id, space_id, lcpl_id, dcpl_id, dapl_id, es_id)) < 0) {
/* clang-format on */
if (H5I_dec_app_ref_always_close(ret_value) < 0)
HDONE_ERROR(H5E_DATASET, H5E_CANTDEC, H5I_INVALID_HID, "can't decrement count on dataset ID");
HGOTO_ERROR(H5E_DATASET, H5E_CANTINSERT, H5I_INVALID_HID, "can't insert token into event set");
} /* end if */
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Dcreate_async() */
/*-------------------------------------------------------------------------
* Function: H5Dcreate_anon
*
* Purpose: Creates a new dataset named NAME at LOC_ID, opens the
* dataset for access, and associates with that dataset constant
* and initial persistent properties including the type of each
* datapoint as stored in the file (TYPE_ID), the size of the
* dataset (SPACE_ID), and other initial miscellaneous
* properties (DCPL_ID).
*
* All arguments are copied into the dataset, so the caller is
* allowed to derive new types, dataspaces, and creation
* parameters from the old ones and reuse them in calls to
* create other datasets.
*
* The resulting ID should be linked into the file with
* H5Olink or it will be deleted when closed.
*
* Return: Success: The object ID of the new dataset. At this
* point, the dataset is ready to receive its
* raw data. Attempting to read raw data from
* the dataset will probably return the fill
* value. The dataset should be linked into
* the group hierarchy before being closed or
* it will be deleted. The dataset should be
* closed when the caller is no longer interested
* in it.
*
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
hid_t
H5Dcreate_anon(hid_t loc_id, hid_t type_id, hid_t space_id, hid_t dcpl_id, hid_t dapl_id)
{
void *dset = NULL; /* dset object from VOL connector */
H5VL_object_t *vol_obj = NULL; /* Object for loc_id */
H5VL_loc_params_t loc_params; /* Location parameters for object access */
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
H5TRACE5("i", "iiiii", loc_id, type_id, space_id, dcpl_id, dapl_id);
/* Check arguments */
if (H5P_DEFAULT == dcpl_id)
dcpl_id = H5P_DATASET_CREATE_DEFAULT;
else if (true != H5P_isa_class(dcpl_id, H5P_DATASET_CREATE))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "not dataset create property list ID");
if (H5P_DEFAULT == dapl_id)
dapl_id = H5P_DATASET_ACCESS_DEFAULT;
else if (true != H5P_isa_class(dapl_id, H5P_DATASET_ACCESS))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "not dataset access property list ID");
/* Set the DCPL for the API context */
H5CX_set_dcpl(dcpl_id);
/* Verify access property list and set up collective metadata if appropriate */
if (H5CX_set_apl(&dapl_id, H5P_CLS_DACC, loc_id, true) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTSET, H5I_INVALID_HID, "can't set access property list info");
/* get the location object */
if (NULL == (vol_obj = (H5VL_object_t *)H5I_object(loc_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "invalid location identifier");
/* Set location parameters */
loc_params.type = H5VL_OBJECT_BY_SELF;
loc_params.obj_type = H5I_get_type(loc_id);
/* Create the dataset */
if (NULL ==
(dset = H5VL_dataset_create(vol_obj, &loc_params, NULL, H5P_LINK_CREATE_DEFAULT, type_id, space_id,
dcpl_id, dapl_id, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL)))
HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, H5I_INVALID_HID, "unable to create dataset");
/* Get an ID for the dataset */
if ((ret_value = H5VL_register(H5I_DATASET, dset, vol_obj->connector, true)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTREGISTER, H5I_INVALID_HID, "unable to register dataset");
done:
/* Cleanup on failure */
if (H5I_INVALID_HID == ret_value)
if (dset && H5VL_dataset_close(vol_obj, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL) < 0)
HDONE_ERROR(H5E_DATASET, H5E_CLOSEERROR, H5I_INVALID_HID, "unable to release dataset");
FUNC_LEAVE_API(ret_value)
} /* end H5Dcreate_anon() */
/*-------------------------------------------------------------------------
* Function: H5D__open_api_common
*
* Purpose: This is the common function for opening a dataset
*
* Return: Success: Object ID of the dataset
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
static hid_t
H5D__open_api_common(hid_t loc_id, const char *name, hid_t dapl_id, void **token_ptr,
H5VL_object_t **_vol_obj_ptr)
{
void *dset = NULL; /* dset object from VOL connector */
H5VL_object_t *tmp_vol_obj = NULL; /* Object for loc_id */
H5VL_object_t **vol_obj_ptr =
(_vol_obj_ptr ? _vol_obj_ptr : &tmp_vol_obj); /* Ptr to object ptr for loc_id */
H5VL_loc_params_t loc_params; /* Location parameters for object access */
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_PACKAGE
/* Check args */
if (!name)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5I_INVALID_HID, "name parameter cannot be NULL");
if (!*name)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5I_INVALID_HID, "name parameter cannot be an empty string");
/* Set up object access arguments */
if (H5VL_setup_acc_args(loc_id, H5P_CLS_DACC, false, &dapl_id, vol_obj_ptr, &loc_params) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTSET, H5I_INVALID_HID, "can't set object access arguments");
/* Open the dataset */
if (NULL == (dset = H5VL_dataset_open(*vol_obj_ptr, &loc_params, name, dapl_id, H5P_DATASET_XFER_DEFAULT,
token_ptr)))
HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, H5I_INVALID_HID, "unable to open dataset");
/* Register an atom for the dataset */
if ((ret_value = H5VL_register(H5I_DATASET, dset, (*vol_obj_ptr)->connector, true)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTREGISTER, H5I_INVALID_HID, "can't register dataset ID");
done:
if (H5I_INVALID_HID == ret_value)
if (dset && H5VL_dataset_close(*vol_obj_ptr, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL) < 0)
HDONE_ERROR(H5E_DATASET, H5E_CLOSEERROR, H5I_INVALID_HID, "unable to release dataset");
FUNC_LEAVE_NOAPI(ret_value)
} /* H5D__open_api_common() */
/*-------------------------------------------------------------------------
* Function: H5Dopen2
*
* Purpose: Finds a dataset named NAME at LOC_ID, opens it, and returns
* its ID. The dataset should be close when the caller is no
* longer interested in it.
*
* Takes a dataset access property list
*
* Return: Success: Object ID of the dataset
*
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
hid_t
H5Dopen2(hid_t loc_id, const char *name, hid_t dapl_id)
{
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
H5TRACE3("i", "i*si", loc_id, name, dapl_id);
/* Open the dataset synchronously */
if ((ret_value = H5D__open_api_common(loc_id, name, dapl_id, NULL, NULL)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, H5I_INVALID_HID, "unable to synchronously open dataset");
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Dopen2() */
/*-------------------------------------------------------------------------
* Function: H5Dopen_async
*
* Purpose: Asynchronous version of H5Dopen2
*
* Return: Success: A group ID
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
hid_t
H5Dopen_async(const char *app_file, const char *app_func, unsigned app_line, hid_t loc_id, const char *name,
hid_t dapl_id, hid_t es_id)
{
H5VL_object_t *vol_obj = NULL; /* Object for loc_id */
void *token = NULL; /* Request token for async operation */
void **token_ptr = H5_REQUEST_NULL; /* Pointer to request token for async operation */
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
H5TRACE7("i", "*s*sIui*sii", app_file, app_func, app_line, loc_id, name, dapl_id, es_id);
/* Set up request token pointer for asynchronous operation */
if (H5ES_NONE != es_id)
token_ptr = &token; /* Point at token for VOL connector to set up */
/* Open the dataset asynchronously */
if ((ret_value = H5D__open_api_common(loc_id, name, dapl_id, token_ptr, &vol_obj)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, H5I_INVALID_HID, "unable to asynchronously open dataset");
/* If a token was created, add the token to the event set */
if (NULL != token)
/* clang-format off */
if (H5ES_insert(es_id, vol_obj->connector, token,
H5ARG_TRACE7(__func__, "*s*sIui*sii", app_file, app_func, app_line, loc_id, name, dapl_id, es_id)) < 0) {
/* clang-format on */
if (H5I_dec_app_ref_always_close(ret_value) < 0)
HDONE_ERROR(H5E_DATASET, H5E_CANTDEC, H5I_INVALID_HID, "can't decrement count on dataset ID");
HGOTO_ERROR(H5E_DATASET, H5E_CANTINSERT, H5I_INVALID_HID, "can't insert token into event set");
} /* end if */
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Dopen_async() */
/*-------------------------------------------------------------------------
* Function: H5Dclose
*
* Purpose: Closes access to a dataset and releases resources used by
* it. It is illegal to subsequently use that same dataset
* ID in calls to other dataset functions.
*
* Return: Non-negative on success/Negative on failure
*
*-------------------------------------------------------------------------
*/
herr_t
H5Dclose(hid_t dset_id)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE1("e", "i", dset_id);
/* Check args */
if (H5I_DATASET != H5I_get_type(dset_id))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataset ID");
/* Decrement the counter on the dataset. It will be freed if the count
* reaches zero.
*/
if (H5I_dec_app_ref_always_close(dset_id) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTDEC, FAIL, "can't decrement count on dataset ID");
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Dclose() */
/*-------------------------------------------------------------------------
* Function: H5Dclose_async
*
* Purpose: Asynchronous version of H5Dclose
*
* Return: Non-negative on success/Negative on failure
*
*-------------------------------------------------------------------------
*/
herr_t
H5Dclose_async(const char *app_file, const char *app_func, unsigned app_line, hid_t dset_id, hid_t es_id)
{
void *token = NULL; /* Request token for async operation */
void **token_ptr = H5_REQUEST_NULL; /* Pointer to request token for async operation */
H5VL_object_t *vol_obj = NULL; /* VOL object of dset_id */
H5VL_t *connector = NULL; /* VOL connector */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE5("e", "*s*sIuii", app_file, app_func, app_line, dset_id, es_id);
/* Check args */
if (H5I_DATASET != H5I_get_type(dset_id))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataset ID");
/* Get dataset object's connector */
if (NULL == (vol_obj = H5VL_vol_object(dset_id)))
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get VOL object for dataset");
/* Prepare for possible asynchronous operation */
if (H5ES_NONE != es_id) {
/* Increase connector's refcount, so it doesn't get closed if closing
* the dataset closes the file */
connector = vol_obj->connector;
H5VL_conn_inc_rc(connector);
/* Point at token for operation to set up */
token_ptr = &token;
} /* end if */
/* Decrement the counter on the dataset. It will be freed if the count
* reaches zero.
*/
if (H5I_dec_app_ref_always_close_async(dset_id, token_ptr) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTDEC, FAIL, "can't decrement count on dataset ID");
/* If a token was created, add the token to the event set */
if (NULL != token)
/* clang-format off */
if (H5ES_insert(es_id, vol_obj->connector, token,
H5ARG_TRACE5(__func__, "*s*sIuii", app_file, app_func, app_line, dset_id, es_id)) < 0)
/* clang-format on */
HGOTO_ERROR(H5E_DATASET, H5E_CANTINSERT, FAIL, "can't insert token into event set");
done:
if (connector && H5VL_conn_dec_rc(connector) < 0)
HDONE_ERROR(H5E_DATASET, H5E_CANTDEC, FAIL, "can't decrement ref count on connector");
FUNC_LEAVE_API(ret_value)
} /* end H5Dclose_async() */
/*-------------------------------------------------------------------------
* Function: H5D__get_space_api_common
*
* Purpose: This is the common function for getting a dataset's dataspace
*
* Return: Success: ID for a copy of the dataspace.
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
static hid_t
H5D__get_space_api_common(hid_t dset_id, void **token_ptr, H5VL_object_t **_vol_obj_ptr)
{
H5VL_object_t *tmp_vol_obj = NULL; /* Object for loc_id */
H5VL_object_t **vol_obj_ptr =
(_vol_obj_ptr ? _vol_obj_ptr : &tmp_vol_obj); /* Ptr to object ptr for loc_id */
H5VL_dataset_get_args_t vol_cb_args; /* Arguments to VOL callback */
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_PACKAGE
/* Check args */
if (NULL == (*vol_obj_ptr = (H5VL_object_t *)H5I_object_verify(dset_id, H5I_DATASET)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "invalid dataset identifier");
/* Set up VOL callback arguments */
vol_cb_args.op_type = H5VL_DATASET_GET_SPACE;
vol_cb_args.args.get_space.space_id = H5I_INVALID_HID;
/* Get the dataspace */
if (H5VL_dataset_get(*vol_obj_ptr, &vol_cb_args, H5P_DATASET_XFER_DEFAULT, token_ptr) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, H5I_INVALID_HID, "unable to get dataspace");
/* Set return value */
ret_value = vol_cb_args.args.get_space.space_id;
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5D__get_space_api_common() */
/*-------------------------------------------------------------------------
* Function: H5Dget_space
*
* Purpose: Returns a copy of the file dataspace for a dataset.
*
* Return: Success: ID for a copy of the dataspace. The data
* space should be released by calling
* H5Sclose().
*
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
hid_t
H5Dget_space(hid_t dset_id)
{
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
H5TRACE1("i", "i", dset_id);
/* Get the dataset's dataspace synchronously */
if ((ret_value = H5D__get_space_api_common(dset_id, NULL, NULL)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, H5I_INVALID_HID, "unable to synchronously get dataspace");
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Dget_space() */
/*-------------------------------------------------------------------------
* Function: H5Dget_space_async
*
* Purpose: Asynchronous version of H5Dget_space
*
* Return: Success: ID for a copy of the dataspace. The data
* space should be released by calling
* H5Sclose().
*
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
hid_t
H5Dget_space_async(const char *app_file, const char *app_func, unsigned app_line, hid_t dset_id, hid_t es_id)
{
H5VL_object_t *vol_obj = NULL; /* Object for loc_id */
void *token = NULL; /* Request token for async operation */
void **token_ptr = H5_REQUEST_NULL; /* Pointer to request token for async operation */
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
H5TRACE5("i", "*s*sIuii", app_file, app_func, app_line, dset_id, es_id);
/* Set up request token pointer for asynchronous operation */
if (H5ES_NONE != es_id)
token_ptr = &token; /* Point at token for VOL connector to set up */
/* Get the dataset's dataspace asynchronously */
if ((ret_value = H5D__get_space_api_common(dset_id, token_ptr, &vol_obj)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, H5I_INVALID_HID, "unable to asynchronously get dataspace");
/* If a token was created, add the token to the event set */
if (NULL != token)
/* clang-format off */
if (H5ES_insert(es_id, vol_obj->connector, token,
H5ARG_TRACE5(__func__, "*s*sIuii", app_file, app_func, app_line, dset_id, es_id)) < 0) {
/* clang-format on */
if (H5I_dec_app_ref(ret_value) < 0)
HDONE_ERROR(H5E_DATASET, H5E_CANTDEC, H5I_INVALID_HID,
"can't decrement count on dataspace ID");
HGOTO_ERROR(H5E_DATASET, H5E_CANTINSERT, H5I_INVALID_HID, "can't insert token into event set");
} /* end if */
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Dget_space_async() */
/*-------------------------------------------------------------------------
* Function: H5Dget_space_status
*
* Purpose: Returns the status of dataspace allocation.
*
* Return: Non-negative on success/Negative on failure
*
*-------------------------------------------------------------------------
*/
herr_t
H5Dget_space_status(hid_t dset_id, H5D_space_status_t *allocation /*out*/)
{
H5VL_object_t *vol_obj; /* Object for loc_id */
H5VL_dataset_get_args_t vol_cb_args; /* Arguments to VOL callback */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
H5TRACE2("e", "ix", dset_id, allocation);
/* Check args */
if (NULL == (vol_obj = (H5VL_object_t *)H5I_object_verify(dset_id, H5I_DATASET)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid dataset identifier");
/* Set up VOL callback arguments */
vol_cb_args.op_type = H5VL_DATASET_GET_SPACE_STATUS;
vol_cb_args.args.get_space_status.status = allocation;
/* Get dataspace status */
if (H5VL_dataset_get(vol_obj, &vol_cb_args, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "unable to get space status");
done:
FUNC_LEAVE_API(ret_value)
} /* H5Dget_space_status() */
/*-------------------------------------------------------------------------
* Function: H5Dget_type
*
* Purpose: Returns a copy of the file datatype for a dataset.
*
* Return: Success: ID for a copy of the datatype. The data
* type should be released by calling
* H5Tclose().
*
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
hid_t
H5Dget_type(hid_t dset_id)
{
H5VL_object_t *vol_obj; /* Object for loc_id */
H5VL_dataset_get_args_t vol_cb_args; /* Arguments to VOL callback */
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
H5TRACE1("i", "i", dset_id);
/* Check args */
if (NULL == (vol_obj = (H5VL_object_t *)H5I_object_verify(dset_id, H5I_DATASET)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "invalid dataset identifier");
/* Set up VOL callback arguments */
vol_cb_args.op_type = H5VL_DATASET_GET_TYPE;
vol_cb_args.args.get_type.type_id = H5I_INVALID_HID;
/* Get the datatype */
if (H5VL_dataset_get(vol_obj, &vol_cb_args, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, H5I_INVALID_HID, "unable to get datatype");
/* Set return value */
ret_value = vol_cb_args.args.get_type.type_id;
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Dget_type() */
/*-------------------------------------------------------------------------
* Function: H5Dget_create_plist
*
* Purpose: Returns a copy of the dataset creation property list.
*
* Return: Success: ID for a copy of the dataset creation
* property list. The template should be
* released by calling H5P_close().
*
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
hid_t
H5Dget_create_plist(hid_t dset_id)
{
H5VL_object_t *vol_obj; /* Object for loc_id */
H5VL_dataset_get_args_t vol_cb_args; /* Arguments to VOL callback */
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
H5TRACE1("i", "i", dset_id);
/* Check args */
if (NULL == (vol_obj = (H5VL_object_t *)H5I_object_verify(dset_id, H5I_DATASET)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "invalid dataset identifier");
/* Set up VOL callback arguments */
vol_cb_args.op_type = H5VL_DATASET_GET_DCPL;
vol_cb_args.args.get_dcpl.dcpl_id = H5I_INVALID_HID;
/* Get the dataset creation property list */
if (H5VL_dataset_get(vol_obj, &vol_cb_args, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, H5I_INVALID_HID, "unable to get dataset creation properties");
/* Set return value */
ret_value = vol_cb_args.args.get_dcpl.dcpl_id;
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Dget_create_plist() */
/*-------------------------------------------------------------------------
* Function: H5Dget_access_plist
*
* Purpose: Returns a copy of the dataset access property list.
*
* Description: H5Dget_access_plist returns the dataset access property
* list identifier of the specified dataset.
*
* The chunk cache parameters in the returned property lists will be
* those used by the dataset. If the properties in the file access
* property list were used to determine the dataset's chunk cache
* configuration, then those properties will be present in the
* returned dataset access property list. If the dataset does not
* use a chunked layout, then the chunk cache properties will be set
* to the default. The chunk cache properties in the returned list
* are considered to be “set”, and any use of this list will override
* the corresponding properties in the file's file access property
* list.
*
* All link access properties in the returned list will be set to the
* default values.
*
* Return: Success: ID for a copy of the dataset access
* property list. The template should be
* released by calling H5Pclose().
*
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
hid_t
H5Dget_access_plist(hid_t dset_id)
{
H5VL_object_t *vol_obj; /* Object for loc_id */
H5VL_dataset_get_args_t vol_cb_args; /* Arguments to VOL callback */
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
H5TRACE1("i", "i", dset_id);
/* Check args */
if (NULL == (vol_obj = (H5VL_object_t *)H5I_object_verify(dset_id, H5I_DATASET)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "invalid dataset identifier");
/* Set up VOL callback arguments */
vol_cb_args.op_type = H5VL_DATASET_GET_DAPL;
vol_cb_args.args.get_dapl.dapl_id = H5I_INVALID_HID;
/* Get the dataset access property list */
if (H5VL_dataset_get(vol_obj, &vol_cb_args, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, H5I_INVALID_HID, "unable to get dataset access properties");
/* Set return value */
ret_value = vol_cb_args.args.get_dapl.dapl_id;
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Dget_access_plist() */
/*-------------------------------------------------------------------------
* Function: H5Dget_storage_size
*
* Purpose: Returns the amount of storage that is required for the
* dataset. For chunked datasets this is the number of allocated
* chunks times the chunk size.
*
* Return: Success: The amount of storage space allocated for the
* dataset, not counting meta data. The return
* value may be zero if no data has been stored.
*
* Failure: Zero
*
*-------------------------------------------------------------------------
*/
hsize_t
H5Dget_storage_size(hid_t dset_id)
{
H5VL_object_t *vol_obj; /* Object for loc_id */
H5VL_dataset_get_args_t vol_cb_args; /* Arguments to VOL callback */
hsize_t storage_size = 0; /* Storage size of dataset */
hsize_t ret_value = 0; /* Return value */
FUNC_ENTER_API(0)
H5TRACE1("h", "i", dset_id);
/* Check args */
if (NULL == (vol_obj = (H5VL_object_t *)H5I_object_verify(dset_id, H5I_DATASET)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, 0, "invalid dataset identifier");
/* Set up VOL callback arguments */
vol_cb_args.op_type = H5VL_DATASET_GET_STORAGE_SIZE;
vol_cb_args.args.get_storage_size.storage_size = &storage_size;
/* Get the storage size */
if (H5VL_dataset_get(vol_obj, &vol_cb_args, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, 0, "unable to get storage size");
/* Set return value */
ret_value = storage_size;
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Dget_storage_size() */
/*-------------------------------------------------------------------------
* Function: H5Dget_offset
*
* Purpose: Returns the address of dataset in file.
*
* Return: Success: The address of dataset
*
* Failure: HADDR_UNDEF (can also be a valid return value!)
*
*-------------------------------------------------------------------------
*/
haddr_t
H5Dget_offset(hid_t dset_id)
{
H5VL_object_t *vol_obj; /* Dataset for this operation */
H5VL_optional_args_t vol_cb_args; /* Arguments to VOL callback */
H5VL_native_dataset_optional_args_t dset_opt_args; /* Arguments for optional operation */
haddr_t dset_offset = HADDR_UNDEF; /* Dataset's offset */
haddr_t ret_value = HADDR_UNDEF; /* Return value */
FUNC_ENTER_API(HADDR_UNDEF)
H5TRACE1("a", "i", dset_id);
/* Check args */
if (NULL == (vol_obj = (H5VL_object_t *)H5I_object_verify(dset_id, H5I_DATASET)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, HADDR_UNDEF, "invalid dataset identifier");
/* Set up VOL callback arguments */
dset_opt_args.get_offset.offset = &dset_offset;
vol_cb_args.op_type = H5VL_NATIVE_DATASET_GET_OFFSET;
vol_cb_args.args = &dset_opt_args;
/* Get the offset */
if (H5VL_dataset_optional(vol_obj, &vol_cb_args, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, HADDR_UNDEF, "unable to get offset");
/* Set return value */
ret_value = dset_offset;
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Dget_offset() */
/*-------------------------------------------------------------------------
* Function: H5D__read_api_common
*
* Purpose: Common helper routine for sync/async dataset read operations.
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
static herr_t
H5D__read_api_common(size_t count, hid_t dset_id[], hid_t mem_type_id[], hid_t mem_space_id[],
hid_t file_space_id[], hid_t dxpl_id, void *buf[], void **token_ptr,
H5VL_object_t **_vol_obj_ptr)
{
H5VL_object_t *tmp_vol_obj = NULL; /* Object for loc_id */
H5VL_object_t **vol_obj_ptr =
(_vol_obj_ptr ? _vol_obj_ptr : &tmp_vol_obj); /* Ptr to object ptr for loc_id */
void *obj_local; /* Local buffer for obj */
void **obj = &obj_local; /* Array of object pointers */
H5VL_t *connector; /* VOL connector pointer */
size_t i; /* Local index variable */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
/* Check arguments */
if (count == 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "count must be greater than 0");
if (!dset_id)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "dset_id array not provided");
if (!mem_type_id)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "mem_type_id array not provided");
if (!mem_space_id)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "mem_space_id array not provided");
if (!file_space_id)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "file_space_id array not provided");
if (!buf)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "buf array not provided");
/* Allocate obj array if necessary */
if (count > 1)
if (NULL == (obj = (void **)H5MM_malloc(count * sizeof(void *))))
HGOTO_ERROR(H5E_VOL, H5E_CANTALLOC, FAIL, "can't allocate space for object array");
/* Get vol_obj_ptr (return just the first dataset to caller if requested) */
if (NULL == (*vol_obj_ptr = (H5VL_object_t *)H5I_object_verify(dset_id[0], H5I_DATASET)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "dset_id is not a dataset ID");
/* Save the connector of the first dataset. Unpack the connector and call
* the "direct" read function here to avoid allocating an array of count
* H5VL_object_ts. */
connector = (*vol_obj_ptr)->connector;
/* Build obj array */
obj[0] = (*vol_obj_ptr)->data;
for (i = 1; i < count; i++) {
/* Get the object */
if (NULL == (tmp_vol_obj = (H5VL_object_t *)H5I_object_verify(dset_id[i], H5I_DATASET)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "dset_id is not a dataset ID");
obj[i] = tmp_vol_obj->data;
/* Make sure the class matches */
if (tmp_vol_obj->connector->cls->value != connector->cls->value)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL,
"datasets are accessed through different VOL connectors and can't be used in the "
"same I/O call");
}
/* Get the default dataset transfer property list if the user didn't provide one */
if (H5P_DEFAULT == dxpl_id)