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H5A.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 LICENSE 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]. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/****************/
/* Module Setup */
/****************/
#include "H5Amodule.h" /* This source code file is part of the H5A module */
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Apkg.h" /* Attributes */
#include "H5CXprivate.h" /* API Contexts */
#include "H5Eprivate.h" /* Error handling */
#include "H5ESprivate.h" /* Event Sets */
#include "H5Iprivate.h" /* IDs */
#include "H5Sprivate.h" /* Dataspace functions */
#include "H5VLprivate.h" /* Virtual Object Layer */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
/* Helper routines for sync/async API calls */
static hid_t H5A__create_common(H5VL_object_t *vol_obj, H5VL_loc_params_t *loc_params, const char *attr_name,
hid_t type_id, hid_t space_id, hid_t acpl_id, hid_t aapl_id,
void **token_ptr);
static hid_t H5A__create_api_common(hid_t loc_id, const char *attr_name, hid_t type_id, hid_t space_id,
hid_t acpl_id, hid_t aapl_id, void **token_ptr,
H5VL_object_t **_vol_obj_ptr);
static hid_t H5A__create_by_name_api_common(hid_t loc_id, const char *obj_name, const char *attr_name,
hid_t type_id, hid_t space_id, hid_t acpl_id, hid_t aapl_id,
hid_t lapl_id, void **token_ptr, H5VL_object_t **_vol_obj_ptr);
static hid_t H5A__open_common(H5VL_object_t *vol_obj, H5VL_loc_params_t *loc_params, const char *attr_name,
hid_t aapl_id, void **token_ptr);
static hid_t H5A__open_api_common(hid_t loc_id, const char *attr_name, hid_t aapl_id, void **token_ptr,
H5VL_object_t **_vol_obj_ptr);
static hid_t H5A__open_by_name_api_common(hid_t loc_id, const char *obj_name, const char *attr_name,
hid_t aapl_id, hid_t lapl_id, void **token_ptr,
H5VL_object_t **_vol_obj_ptr);
static hid_t H5A__open_by_idx_api_common(hid_t loc_id, const char *obj_name, H5_index_t idx_type,
H5_iter_order_t order, hsize_t n, hid_t aapl_id, hid_t lapl_id,
void **token_ptr, H5VL_object_t **_vol_obj_ptr);
static herr_t H5A__write_api_common(hid_t attr_id, hid_t type_id, const void *buf, void **token_ptr,
H5VL_object_t **_vol_obj_ptr);
static herr_t H5A__read_api_common(hid_t attr_id, hid_t dtype_id, void *buf, void **token_ptr,
H5VL_object_t **_vol_obj_ptr);
static herr_t H5A__rename_common(H5VL_object_t *vol_obj, H5VL_loc_params_t *loc_params, const char *old_name,
const char *new_name, void **token_ptr);
static herr_t H5A__rename_api_common(hid_t loc_id, const char *old_name, const char *new_name,
void **token_ptr, H5VL_object_t **_vol_obj_ptr);
static herr_t H5A__rename_by_name_api_common(hid_t loc_id, const char *obj_name, const char *old_attr_name,
const char *new_attr_name, hid_t lapl_id, void **token_ptr,
H5VL_object_t **_vol_obj_ptr);
static herr_t H5A__exists_common(H5VL_object_t *vol_obj, H5VL_loc_params_t *loc_params, const char *attr_name,
bool *attr_exists, void **token_ptr);
static herr_t H5A__exists_api_common(hid_t obj_id, const char *attr_name, bool *attr_exists, void **token_ptr,
H5VL_object_t **_vol_obj_ptr);
static herr_t H5A__exists_by_name_api_common(hid_t obj_id, const char *obj_name, const char *attr_name,
bool *attr_exists, hid_t lapl_id, void **token_ptr,
H5VL_object_t **_vol_obj_ptr);
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/*--------------------------------------------------------------------------
* Function: H5A__create_common
*
* Purpose: This is the common function for creating HDF5 datasets.
*
* Return: Success: An attribute ID
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
static hid_t
H5A__create_common(H5VL_object_t *vol_obj, H5VL_loc_params_t *loc_params, const char *attr_name,
hid_t type_id, hid_t space_id, hid_t acpl_id, hid_t aapl_id, void **token_ptr)
{
void *attr = NULL; /* Attribute created */
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_PACKAGE
/* Sanity checks */
assert(vol_obj);
assert(loc_params);
assert(attr_name);
/* Create the attribute */
if (NULL == (attr = H5VL_attr_create(vol_obj, loc_params, attr_name, type_id, space_id, acpl_id, aapl_id,
H5P_DATASET_XFER_DEFAULT, token_ptr)))
HGOTO_ERROR(H5E_ATTR, H5E_CANTINIT, H5I_INVALID_HID, "unable to create attribute");
/* Register the new attribute and get an ID for it */
if ((ret_value = H5VL_register(H5I_ATTR, attr, H5VL_OBJ_CONNECTOR(vol_obj), true)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTREGISTER, H5I_INVALID_HID, "unable to register attribute for ID");
done:
/* Cleanup on failure */
if (H5I_INVALID_HID == ret_value)
if (attr && H5VL_attr_close(vol_obj, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL) < 0)
HDONE_ERROR(H5E_ATTR, H5E_CLOSEERROR, H5I_INVALID_HID, "can't close attribute");
FUNC_LEAVE_NOAPI(ret_value)
} /* H5A__create_common() */
/*--------------------------------------------------------------------------
* Function: H5A__create_api_common
*
* Purpose: This is the common function for creating HDF5 attributes
*
* Return: Success: An attribute ID
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
static hid_t
H5A__create_api_common(hid_t loc_id, const char *attr_name, hid_t type_id, hid_t space_id, hid_t acpl_id,
hid_t aapl_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_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 (H5I_ATTR == H5I_get_type(loc_id))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "location is not valid for an attribute");
if (!attr_name)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5I_INVALID_HID, "attr_name parameter cannot be NULL");
if (!*attr_name)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5I_INVALID_HID, "attr_name parameter cannot be an empty string");
/* Set up object access arguments */
if (H5VL_setup_acc_args(loc_id, H5P_CLS_AACC, true, &aapl_id, vol_obj_ptr, &loc_params) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTSET, H5I_INVALID_HID, "can't set object access arguments");
/* Get correct property list */
if (H5P_DEFAULT == acpl_id)
acpl_id = H5P_ATTRIBUTE_CREATE_DEFAULT;
/* Create the attribute */
if ((ret_value = H5A__create_common(*vol_obj_ptr, &loc_params, attr_name, type_id, space_id, acpl_id,
aapl_id, token_ptr)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTCREATE, H5I_INVALID_HID, "unable to create attribute");
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5A__create_api_common() */
/*--------------------------------------------------------------------------
* Function: H5Acreate2
*
* Purpose: Creates an attribute on an object
*
* Usage:
* hid_t H5Acreate2(loc_id, attr_name, type_id, space_id, acpl_id,
* aapl_id)
*
* Description: This function creates an attribute that is attached to the
* object specified with 'loc_id'. The name specified with
* 'attr_name' for each attribute for an object must be unique
* for that object. The 'type_id' and 'space_id' are created
* with the H5T and H5S interfaces, respectively. The 'aapl_id'
* property list is currently unused, but will be used in the
* future for optional attribute access properties. The
* attribute ID returned from this function must be released
* with H5Aclose or resource leaks will develop.
*
* Parameters:
* hid_t loc_id; IN: Object (dataset or group) to be attached to
* const char *attr_name; IN: Name of attribute to locate and open
* hid_t type_id; IN: ID of datatype for attribute
* hid_t space_id; IN: ID of dataspace for attribute
* hid_t acpl_id; IN: ID of creation property list
* hid_t aapl_id; IN: ID of Attribute access property list (currently not used)
*
* Return: Success: An ID for the created attribute
*
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
hid_t
H5Acreate2(hid_t loc_id, const char *attr_name, hid_t type_id, hid_t space_id, hid_t acpl_id, hid_t aapl_id)
{
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
/* Create the attribute synchronously */
if ((ret_value =
H5A__create_api_common(loc_id, attr_name, type_id, space_id, acpl_id, aapl_id, NULL, NULL)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTCREATE, H5I_INVALID_HID, "unable to synchronously create attribute");
done:
FUNC_LEAVE_API(ret_value)
} /* H5Acreate2() */
/*--------------------------------------------------------------------------
* Function: H5Acreate_sync
*
* Purpose: Asynchronous version of H5Acreate
*
* Return: Success: An attribute ID
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
hid_t
H5Acreate_async(const char *app_file, const char *app_func, unsigned app_line, hid_t loc_id,
const char *attr_name, hid_t type_id, hid_t space_id, hid_t acpl_id, hid_t aapl_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)
/* 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 attribute asynchronously */
if ((ret_value = H5A__create_api_common(loc_id, attr_name, type_id, space_id, acpl_id, aapl_id, token_ptr,
&vol_obj)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTCREATE, H5I_INVALID_HID, "unable to asynchronously create attribute");
/* If a token was created, add the token to the event set */
if (NULL != token)
/* clang-format off */
if (H5ES_insert(es_id, H5VL_OBJ_CONNECTOR(vol_obj), token,
H5ARG_TRACE10(__func__, "*s*sIui*siiiii", app_file, app_func, app_line, loc_id, attr_name, type_id, space_id, acpl_id, aapl_id, es_id)) < 0) {
/* clang-format on */
if (H5I_dec_app_ref(ret_value) < 0)
HDONE_ERROR(H5E_ATTR, H5E_CANTDEC, H5I_INVALID_HID, "can't decrement count on attribute ID");
HGOTO_ERROR(H5E_ATTR, H5E_CANTINSERT, H5I_INVALID_HID, "can't insert token into event set");
} /* end if */
done:
FUNC_LEAVE_API(ret_value)
} /* H5Acreate_async() */
/*--------------------------------------------------------------------------
* Function: H5A__create_by_name_api_common
*
* Purpose: This is the common function for creating HDF5 attributes by name
*
* Return: Success: An attribute ID
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
static hid_t
H5A__create_by_name_api_common(hid_t loc_id, const char *obj_name, const char *attr_name, hid_t type_id,
hid_t space_id, hid_t acpl_id, hid_t aapl_id, hid_t lapl_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_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 (H5I_ATTR == H5I_get_type(loc_id))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "location is not valid for an attribute");
if (!attr_name)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5I_INVALID_HID, "attr_name parameter cannot be NULL");
if (!*attr_name)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5I_INVALID_HID, "attr_name parameter cannot be an empty string");
/* obj_name is verified in H5VL_setup_name_args() */
/* Set up object access arguments */
if (H5VL_setup_name_args(loc_id, obj_name, true, lapl_id, vol_obj_ptr, &loc_params) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTSET, H5I_INVALID_HID, "can't set object access arguments");
/* Verify access property list and set up collective metadata if appropriate */
if (H5CX_set_apl(&aapl_id, H5P_CLS_AACC, loc_id, true) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTSET, H5I_INVALID_HID, "can't set attribute access property list info");
/* Get correct property list */
if (H5P_DEFAULT == acpl_id)
acpl_id = H5P_ATTRIBUTE_CREATE_DEFAULT;
/* Create the attribute */
if ((ret_value = H5A__create_common(*vol_obj_ptr, &loc_params, attr_name, type_id, space_id, acpl_id,
aapl_id, token_ptr)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTCREATE, H5I_INVALID_HID, "unable to create attribute");
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5A__create_by_name_api_common() */
/*--------------------------------------------------------------------------
NAME
H5Acreate_by_name
PURPOSE
Creates an attribute on an object
USAGE
hid_t H5Acreate_by_name(loc_id, obj_name, attr_name, type_id, space_id, acpl_id,
aapl_id, lapl_id)
hid_t loc_id; IN: Object (dataset or group) to be attached to
const char *obj_name; IN: Name of object relative to location
const char *attr_name; IN: Name of attribute to locate and open
hid_t type_id; IN: ID of datatype for attribute
hid_t space_id; IN: ID of dataspace for attribute
hid_t acpl_id; IN: ID of creation property list
hid_t aapl_id; IN: ID of Attribute access property list (currently not used)
hid_t lapl_id; IN: Link access property list
RETURNS
Non-negative on success/H5I_INVALID_HID on failure
DESCRIPTION
This function creates an attribute that is attached to the object
specified with 'loc_id/obj_name'. The name specified with 'attr_name' for
each attribute for an object must be unique for that object. The 'type_id'
and 'space_id' are created with the H5T and H5S interfaces respectively.
The 'aapl_id' property list is currently unused, but will be used in the
future for optional attribute access properties. The attribute ID returned
from this function must be released with H5Aclose or resource leaks will
develop.
--------------------------------------------------------------------------*/
hid_t
H5Acreate_by_name(hid_t loc_id, const char *obj_name, const char *attr_name, hid_t type_id, hid_t space_id,
hid_t acpl_id, hid_t aapl_id, hid_t lapl_id)
{
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
/* Create the attribute synchronously */
if ((ret_value = H5A__create_by_name_api_common(loc_id, obj_name, attr_name, type_id, space_id, acpl_id,
aapl_id, lapl_id, NULL, NULL)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTCREATE, H5I_INVALID_HID, "unable to synchronously create attribute");
done:
FUNC_LEAVE_API(ret_value)
} /* H5Acreate_by_name() */
/*--------------------------------------------------------------------------
* Function: H5Acreate_by_name_async
*
* Purpose: Asynchronous version of H5Acreate_by_name
*
* Return: Success: An attribute ID
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
hid_t
H5Acreate_by_name_async(const char *app_file, const char *app_func, unsigned app_line, hid_t loc_id,
const char *obj_name, const char *attr_name, hid_t type_id, hid_t space_id,
hid_t acpl_id, hid_t aapl_id, hid_t lapl_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)
/* 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 attribute asynchronously */
if ((ret_value = H5A__create_by_name_api_common(loc_id, obj_name, attr_name, type_id, space_id, acpl_id,
aapl_id, lapl_id, token_ptr, &vol_obj)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTCREATE, H5I_INVALID_HID, "unable to asynchronously create attribute");
/* If a token was created, add the token to the event set */
if (NULL != token)
/* clang-format off */
if (H5ES_insert(es_id, H5VL_OBJ_CONNECTOR(vol_obj), token,
H5ARG_TRACE12(__func__, "*s*sIui*s*siiiiii", app_file, app_func, app_line, loc_id, obj_name, attr_name, type_id, space_id, acpl_id, aapl_id, lapl_id, es_id)) < 0) {
/* clang-format on */
if (H5I_dec_app_ref(ret_value) < 0)
HDONE_ERROR(H5E_ATTR, H5E_CANTDEC, H5I_INVALID_HID, "can't decrement count on attribute ID");
HGOTO_ERROR(H5E_ATTR, H5E_CANTINSERT, H5I_INVALID_HID, "can't insert token into event set");
} /* end if */
done:
FUNC_LEAVE_API(ret_value)
} /* H5Acreate_by_name_async() */
/*-------------------------------------------------------------------------
* Function: H5A__open_common
*
* Purpose: This is the common function for opening an attribute
*
* Return: Success: A group ID
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
static hid_t
H5A__open_common(H5VL_object_t *vol_obj, H5VL_loc_params_t *loc_params, const char *attr_name, hid_t aapl_id,
void **token_ptr)
{
void *attr = NULL; /* attr object from VOL connector */
hid_t ret_value = H5I_INVALID_HID;
FUNC_ENTER_PACKAGE
/* Sanity checks */
assert(vol_obj);
assert(loc_params);
/* Open the attribute */
if (NULL ==
(attr = H5VL_attr_open(vol_obj, loc_params, attr_name, aapl_id, H5P_DATASET_XFER_DEFAULT, token_ptr)))
HGOTO_ERROR(H5E_ATTR, H5E_CANTOPENOBJ, H5I_INVALID_HID, "unable to open attribute: '%s'", attr_name);
/* Register the attribute and get an ID for it */
if ((ret_value = H5VL_register(H5I_ATTR, attr, H5VL_OBJ_CONNECTOR(vol_obj), true)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTREGISTER, H5I_INVALID_HID, "unable to register attribute for ID");
done:
/* Cleanup on failure */
if (H5I_INVALID_HID == ret_value)
if (attr && H5VL_attr_close(vol_obj, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL) < 0)
HDONE_ERROR(H5E_ATTR, H5E_CLOSEERROR, H5I_INVALID_HID, "can't close attribute");
FUNC_LEAVE_NOAPI(ret_value)
} /* H5A__open_common() */
/*-------------------------------------------------------------------------
* Function: H5A__open_api_common
*
* Purpose: This is the common function for opening an attribute
*
* Return: Success: A group ID
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
static hid_t
H5A__open_api_common(hid_t loc_id, const char *attr_name, hid_t aapl_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_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 (H5I_ATTR == H5I_get_type(loc_id))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "location is not valid for an attribute");
if (!attr_name)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5I_INVALID_HID, "name parameter cannot be NULL");
if (!*attr_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_AACC, false, &aapl_id, vol_obj_ptr, &loc_params) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTSET, H5I_INVALID_HID, "can't set object access arguments");
/* Open the attribute */
if ((ret_value = H5A__open_common(*vol_obj_ptr, &loc_params, attr_name, aapl_id, token_ptr)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTOPENOBJ, H5I_INVALID_HID, "unable to open attribute: '%s'", attr_name);
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5A__open_api_common() */
/*--------------------------------------------------------------------------
NAME
H5Aopen
PURPOSE
Opens an attribute for an object by looking up the attribute name
USAGE
hid_t H5Aopen(loc_id, attr_name, aapl_id)
hid_t loc_id; IN: Object that attribute is attached to
const char *attr_name; IN: Name of attribute to locate and open
hid_t aapl_id; IN: Attribute access property list
RETURNS
ID of attribute on success, H5I_INVALID_HID on failure
DESCRIPTION
This function opens an existing attribute for access. The attribute
name specified is used to look up the corresponding attribute for the
object. The attribute ID returned from this function must be released with
H5Aclose or resource leaks will develop.
--------------------------------------------------------------------------*/
hid_t
H5Aopen(hid_t loc_id, const char *attr_name, hid_t aapl_id)
{
hid_t ret_value = H5I_INVALID_HID;
FUNC_ENTER_API(H5I_INVALID_HID)
/* Open the attribute synchronously */
if ((ret_value = H5A__open_api_common(loc_id, attr_name, aapl_id, NULL, NULL)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTCREATE, H5I_INVALID_HID, "unable to synchronously open attribute");
done:
FUNC_LEAVE_API(ret_value)
} /* H5Aopen() */
/*--------------------------------------------------------------------------
* NAME
* H5Aopen_async
* PURPOSE
* Asynchronous version of H5Aopen
*
* RETURNS
* ID of attribute on success, H5I_INVALID_HID on failure
*
*--------------------------------------------------------------------------*/
hid_t
H5Aopen_async(const char *app_file, const char *app_func, unsigned app_line, hid_t loc_id,
const char *attr_name, hid_t aapl_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)
/* 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 attribute asynchronously */
if ((ret_value = H5A__open_api_common(loc_id, attr_name, aapl_id, token_ptr, &vol_obj)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTCREATE, H5I_INVALID_HID, "unable to asynchronously open attribute");
/* If a token was created, add the token to the event set */
if (NULL != token)
/* clang-format off */
if (H5ES_insert(es_id, H5VL_OBJ_CONNECTOR(vol_obj), token,
H5ARG_TRACE7(__func__, "*s*sIui*sii", app_file, app_func, app_line, loc_id, attr_name, aapl_id, es_id)) < 0) {
/* clang-format on */
if (H5I_dec_app_ref(ret_value) < 0)
HDONE_ERROR(H5E_ATTR, H5E_CANTDEC, H5I_INVALID_HID, "can't decrement count on attribute ID");
HGOTO_ERROR(H5E_ATTR, H5E_CANTINSERT, H5I_INVALID_HID, "can't insert token into event set");
} /* end if */
done:
FUNC_LEAVE_API(ret_value)
} /* H5Aopen_async() */
/*-------------------------------------------------------------------------
* Function: H5A__open_by_name_api_common
*
* Purpose: This is the common function for opening an attribute
*
* Return: Success: A group ID
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
static hid_t
H5A__open_by_name_api_common(hid_t loc_id, const char *obj_name, const char *attr_name, hid_t aapl_id,
hid_t lapl_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_loc_params_t loc_params; /* Location parameters for object access */
hid_t ret_value = H5I_INVALID_HID;
FUNC_ENTER_PACKAGE
/* Check arguments */
if (H5I_ATTR == H5I_get_type(loc_id))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "location is not valid for an attribute");
if (!attr_name || !*attr_name)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5I_INVALID_HID, "no attribute name");
/* obj_name is verified in H5VL_setup_name_args() */
/* Set up object access arguments */
if (H5VL_setup_name_args(loc_id, obj_name, false, lapl_id, vol_obj_ptr, &loc_params) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTSET, H5I_INVALID_HID, "can't set object access arguments");
/* Verify access property list and set up collective metadata if appropriate */
if (H5CX_set_apl(&aapl_id, H5P_CLS_AACC, loc_id, false) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTSET, H5I_INVALID_HID, "can't set attribute access property list info");
/* Open the attribute */
if ((ret_value = H5A__open_common(*vol_obj_ptr, &loc_params, attr_name, aapl_id, token_ptr)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTOPENOBJ, H5I_INVALID_HID, "unable to open attribute: '%s'", attr_name);
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5A__open_by_name_api_common() */
/*--------------------------------------------------------------------------
NAME
H5Aopen_by_name
PURPOSE
Opens an attribute for an object by looking up the attribute name
USAGE
hid_t H5Aopen_by_name(loc_id, obj_name, attr_name, aapl_id, lapl_id)
hid_t loc_id; IN: Object that attribute is attached to
const char *obj_name; IN: Name of the object relative to location
const char *attr_name; IN: Name of attribute to locate and open
hid_t aapl_id; IN: Attribute access property list
hid_t lapl_id; IN: Link access property list
RETURNS
ID of attribute on success, H5I_INVALID_HID on failure
DESCRIPTION
This function opens an existing attribute for access. The attribute
name specified is used to look up the corresponding attribute for the
object. The attribute ID returned from this function must be released with
H5Aclose or resource leaks will develop.
--------------------------------------------------------------------------*/
hid_t
H5Aopen_by_name(hid_t loc_id, const char *obj_name, const char *attr_name, hid_t aapl_id, hid_t lapl_id)
{
hid_t ret_value = H5I_INVALID_HID;
FUNC_ENTER_API(H5I_INVALID_HID)
/* Open the attribute by name asynchronously */
if ((ret_value =
H5A__open_by_name_api_common(loc_id, obj_name, attr_name, aapl_id, lapl_id, NULL, NULL)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTOPENOBJ, H5I_INVALID_HID, "unable to synchronously open attribute");
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Aopen_by_name() */
/*--------------------------------------------------------------------------
* NAME
* H5Aopen_by_name_async
* PURPOSE
* Asynchronous version of H5Aopen_by_name
*
* RETURNS
* ID of attribute on success, H5I_INVALID_HID on failure
*
*--------------------------------------------------------------------------*/
hid_t
H5Aopen_by_name_async(const char *app_file, const char *app_func, unsigned app_line, hid_t loc_id,
const char *obj_name, const char *attr_name, hid_t aapl_id, hid_t lapl_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;
FUNC_ENTER_API(H5I_INVALID_HID)
/* 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 attribute by name asynchronously */
if ((ret_value = H5A__open_by_name_api_common(loc_id, obj_name, attr_name, aapl_id, lapl_id, token_ptr,
&vol_obj)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTOPENOBJ, H5I_INVALID_HID, "unable to asynchronously open attribute");
/* If a token was created, add the token to the event set */
if (NULL != token)
/* clang-format off */
if (H5ES_insert(es_id, H5VL_OBJ_CONNECTOR(vol_obj), token,
H5ARG_TRACE9(__func__, "*s*sIui*s*siii", app_file, app_func, app_line, loc_id, obj_name, attr_name, aapl_id, lapl_id, es_id)) < 0) {
/* clang-format on */
if (H5I_dec_app_ref(ret_value) < 0)
HDONE_ERROR(H5E_ATTR, H5E_CANTDEC, H5I_INVALID_HID, "can't decrement count on attribute ID");
HGOTO_ERROR(H5E_ATTR, H5E_CANTINSERT, H5I_INVALID_HID, "can't insert token into event set");
} /* end if */
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Aopen_by_name_async() */
/*-------------------------------------------------------------------------
* Function: H5A__open_by_idx_api_common
*
* Purpose: This is the common function for opening an attribute
*
* Return: Success: A group ID
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
static hid_t
H5A__open_by_idx_api_common(hid_t loc_id, const char *obj_name, H5_index_t idx_type, H5_iter_order_t order,
hsize_t n, hid_t aapl_id, hid_t lapl_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_loc_params_t loc_params; /* Location parameters for object access */
hid_t ret_value = H5I_INVALID_HID;
FUNC_ENTER_PACKAGE
/* Check arguments */
if (H5I_ATTR == H5I_get_type(loc_id))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "location is not valid for an attribute");
if (!obj_name || !*obj_name)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5I_INVALID_HID, "no object name");
if (idx_type <= H5_INDEX_UNKNOWN || idx_type >= H5_INDEX_N)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5I_INVALID_HID, "invalid index type specified");
if (order <= H5_ITER_UNKNOWN || order >= H5_ITER_N)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, H5I_INVALID_HID, "invalid iteration order specified");
/* Set up object access arguments */
if (H5VL_setup_idx_args(loc_id, obj_name, idx_type, order, n, false, lapl_id, vol_obj_ptr, &loc_params) <
0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTSET, H5I_INVALID_HID, "can't set object access arguments");
/* Verify access property list and set up collective metadata if appropriate */
if (H5CX_set_apl(&aapl_id, H5P_CLS_AACC, loc_id, false) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTSET, H5I_INVALID_HID, "can't set attribute access property list info");
/* Open the attribute */
if ((ret_value = H5A__open_common(*vol_obj_ptr, &loc_params, NULL, aapl_id, token_ptr)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTOPENOBJ, H5I_INVALID_HID, "unable to open attribute");
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5A__open_by_idx_api_common() */
/*--------------------------------------------------------------------------
NAME
H5Aopen_by_idx
PURPOSE
Opens the n'th attribute for an object, according to the order within
an index
USAGE
hid_t H5Aopen_by_idx(loc_id, obj_ame, idx_type, order, n, aapl_id, lapl_id)
hid_t loc_id; IN: Object that attribute is attached to
const char *obj_name; IN: Name of the object relative to location
H5_index_t idx_type; IN: Type of index to use
H5_iter_order_t order; IN: Order to iterate over index
hsize_t n; IN: Index (0-based) attribute to open
hid_t aapl_id; IN: Attribute access property list
hid_t lapl_id; IN: Link access property list
RETURNS
ID of attribute on success, H5I_INVALID_HID on failure
DESCRIPTION
This function opens an existing attribute for access. The attribute
index specified is used to look up the corresponding attribute for the
object. The attribute ID returned from this function must be released with
H5Aclose or resource leaks will develop.
--------------------------------------------------------------------------*/
hid_t
H5Aopen_by_idx(hid_t loc_id, const char *obj_name, H5_index_t idx_type, H5_iter_order_t order, hsize_t n,
hid_t aapl_id, hid_t lapl_id)
{
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_API(H5I_INVALID_HID)
/* Open the attribute by idx synchronously */
if ((ret_value = H5A__open_by_idx_api_common(loc_id, obj_name, idx_type, order, n, aapl_id, lapl_id, NULL,
NULL)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTCREATE, H5I_INVALID_HID, "unable to synchronously open attribute");
done:
FUNC_LEAVE_API(ret_value)
} /* H5Aopen_by_idx() */
/*--------------------------------------------------------------------------
* NAME
* H5Aopen_by_idx_async
* PURPOSE
* Asynchronous version of H5Aopen_by_idx
*
* RETURNS
* ID of attribute on success, H5I_INVALID_HID on failure
*
*--------------------------------------------------------------------------*/
hid_t
H5Aopen_by_idx_async(const char *app_file, const char *app_func, unsigned app_line, hid_t loc_id,
const char *obj_name, H5_index_t idx_type, H5_iter_order_t order, hsize_t n,
hid_t aapl_id, hid_t lapl_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;
FUNC_ENTER_API(H5I_INVALID_HID)
/* 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 attribute by idx asynchronously */
if ((ret_value = H5A__open_by_idx_api_common(loc_id, obj_name, idx_type, order, n, aapl_id, lapl_id,
token_ptr, &vol_obj)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTCREATE, H5I_INVALID_HID, "unable to asynchronously open attribute");
/* If a token was created, add the token to the event set */
if (NULL != token)
/* clang-format off */
if (H5ES_insert(es_id, H5VL_OBJ_CONNECTOR(vol_obj), token,
H5ARG_TRACE11(__func__, "*s*sIui*sIiIohiii", app_file, app_func, app_line, loc_id, obj_name, idx_type, order, n, aapl_id, lapl_id, es_id)) < 0) {
/* clang-format on */
if (H5I_dec_app_ref(ret_value) < 0)
HDONE_ERROR(H5E_ATTR, H5E_CANTDEC, H5I_INVALID_HID, "can't decrement count on attribute ID");
HGOTO_ERROR(H5E_ATTR, H5E_CANTINSERT, H5I_INVALID_HID, "can't insert token into event set");
} /* end if */
done:
FUNC_LEAVE_API(ret_value)
} /* end H5Aopen_by_idx_async() */
/*--------------------------------------------------------------------------
NAME
H5A__write_api_common
PURPOSE
Common helper routine for sync/async dataset write operations.
RETURNS
Non-negative on success/Negative on failure
--------------------------------------------------------------------------*/
static herr_t
H5A__write_api_common(hid_t attr_id, hid_t type_id, const 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 */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
/* Check arguments */
if (H5I_DATATYPE != H5I_get_type(type_id))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype");
if (NULL == buf)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "buf parameter can't be NULL");
/* Get attribute pointer */
if (H5VL_setup_args(attr_id, H5I_ATTR, vol_obj_ptr) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTGET, FAIL, "can't get VOL object for attribute");
/* Write the attribute data */
if (H5VL_attr_write(*vol_obj_ptr, type_id, buf, H5P_DATASET_XFER_DEFAULT, token_ptr) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_WRITEERROR, FAIL, "unable to write attribute");
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5A__write_api_common() */
/*--------------------------------------------------------------------------
NAME
H5Awrite
PURPOSE
Write out data to an attribute
USAGE
herr_t H5Awrite (attr_id, dtype_id, buf)
hid_t attr_id; IN: Attribute to write
hid_t dtype_id; IN: Memory datatype of buffer
const void *buf; IN: Buffer of data to write
RETURNS
Non-negative on success/Negative on failure
DESCRIPTION
This function writes a complete attribute to disk.
--------------------------------------------------------------------------*/
herr_t
H5Awrite(hid_t attr_id, hid_t dtype_id, const void *buf)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
/* Synchronously write the data */
if (H5A__write_api_common(attr_id, dtype_id, buf, NULL, NULL) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_WRITEERROR, FAIL, "can't synchronously write data");
done:
FUNC_LEAVE_API(ret_value)
} /* H5Awrite() */
/*--------------------------------------------------------------------------
NAME
H5Awrite_async
PURPOSE
Asynchronous version of H5Awrite
RETURNS
Non-negative on success/Negative on failure
--------------------------------------------------------------------------*/
herr_t
H5Awrite_async(const char *app_file, const char *app_func, unsigned app_line, hid_t attr_id, hid_t dtype_id,
const void *buf, hid_t es_id)
{
H5VL_object_t *vol_obj = NULL; /* Object for attr_id */
void *token = NULL; /* Request token for async operation */
void **token_ptr = H5_REQUEST_NULL; /* Pointer to request token for async operation */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_API(FAIL)
/* 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 */
/* Asynchronously write the data */
if (H5A__write_api_common(attr_id, dtype_id, buf, token_ptr, &vol_obj) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_WRITEERROR, FAIL, "can't asynchronously write data");
/* If a token was created, add the token to the event set */
if (NULL != token)
/* clang-format off */
if (H5ES_insert(es_id, H5VL_OBJ_CONNECTOR(vol_obj), token,
H5ARG_TRACE7(__func__, "*s*sIuii*xi", app_file, app_func, app_line, attr_id, dtype_id, buf, es_id)) < 0)
/* clang-format on */
HGOTO_ERROR(H5E_ATTR, H5E_CANTINSERT, FAIL, "can't insert token into event set");
done:
FUNC_LEAVE_API(ret_value)
} /* H5Awrite_async() */
/*--------------------------------------------------------------------------
* NAME
* H5A__read_api_common
* PURPOSE
* Common helper routine for sync/async attribute read operations.
* RETURNS
* Non-negative on success/Negative on failure
*--------------------------------------------------------------------------*/
static herr_t
H5A__read_api_common(hid_t attr_id, hid_t dtype_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 */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
/* Check arguments */
if (H5I_DATATYPE != H5I_get_type(dtype_id))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype");
if (NULL == buf)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "buf parameter can't be NULL");
/* Get attribute object pointer */
if (NULL == (*vol_obj_ptr = H5VL_vol_object_verify(attr_id, H5I_ATTR)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not an attribute");
/* Read the attribute data */
if (H5VL_attr_read(*vol_obj_ptr, dtype_id, buf, H5P_DATASET_XFER_DEFAULT, token_ptr) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_READERROR, FAIL, "unable to read attribute");
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5A__read_api_common() */
/*--------------------------------------------------------------------------
NAME
H5Aread
PURPOSE