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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://support.hdfgroup.org/ftp/HDF5/releases. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Purpose: Attribute callbacks for the native VOL connector
*
*/
#define H5A_FRIEND /* Suppress error about including H5Apkg */
#include "H5private.h" /* Generic Functions */
#include "H5Apkg.h" /* Attributes */
#include "H5Eprivate.h" /* Error handling */
#include "H5Fprivate.h" /* Files */
#include "H5Gprivate.h" /* Groups */
#include "H5Iprivate.h" /* IDs */
#include "H5Pprivate.h" /* Property lists */
#include "H5Sprivate.h" /* Dataspaces */
#include "H5Tprivate.h" /* Datatypes */
#include "H5VLprivate.h" /* Virtual Object Layer */
#include "H5VLnative_private.h" /* Native VOL connector */
/*-------------------------------------------------------------------------
* Function: H5VL__native_attr_create
*
* Purpose: Handles the attribute create callback
*
* Return: Success: attribute pointer
* Failure: NULL
*
*-------------------------------------------------------------------------
*/
void *
H5VL__native_attr_create(void *obj, const H5VL_loc_params_t *loc_params, const char *attr_name, hid_t type_id,
hid_t space_id, hid_t acpl_id, hid_t H5_ATTR_UNUSED aapl_id,
hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req)
{
H5G_loc_t loc; /* Object location */
H5G_loc_t obj_loc; /* Location used to open group */
hbool_t loc_found = FALSE;
H5T_t * type, *dt; /* Datatype to use for attribute */
H5S_t * space; /* Dataspace to use for attribute */
H5A_t * attr = NULL;
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")
if (0 == (H5F_INTENT(loc.oloc->file) & H5F_ACC_RDWR))
HGOTO_ERROR(H5E_ARGS, H5E_WRITEERROR, NULL, "no write intent on file")
if (NULL == (dt = (H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a datatype")
/* If this is a named datatype, get the connector's pointer to the datatype */
type = H5T_get_actual_type(dt);
if (NULL == (space = (H5S_t *)H5I_object_verify(space_id, H5I_DATASPACE)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a data space")
if (loc_params->type == H5VL_OBJECT_BY_SELF) {
/* H5Acreate */
/* Go do the real work for attaching the attribute to the dataset */
if (NULL == (attr = H5A__create(&loc, attr_name, type, space, acpl_id)))
HGOTO_ERROR(H5E_ATTR, H5E_CANTINIT, NULL, "unable to create attribute")
} /* end if */
else if (loc_params->type == H5VL_OBJECT_BY_NAME) {
/* H5Acreate_by_name */
if (NULL == (attr = H5A__create_by_name(&loc, loc_params->loc_data.loc_by_name.name, attr_name, type,
space, acpl_id)))
HGOTO_ERROR(H5E_ATTR, H5E_CANTINIT, NULL, "unable to create attribute")
} /* end else-if */
else
HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, NULL, "unknown attribute create parameters")
ret_value = (void *)attr;
done:
/* Release resources */
if (loc_found && H5G_loc_free(&obj_loc) < 0)
HDONE_ERROR(H5E_ATTR, H5E_CANTRELEASE, NULL, "can't free location")
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_attr_create() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_attr_open
*
* Purpose: Handles the attribute open callback
*
* Return: Success: attribute pointer
* Failure: NULL
*
*-------------------------------------------------------------------------
*/
void *
H5VL__native_attr_open(void *obj, const H5VL_loc_params_t *loc_params, const char *attr_name,
hid_t H5_ATTR_UNUSED aapl_id, hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req)
{
H5G_loc_t loc; /* Object location */
H5A_t * attr = NULL; /* Attribute opened */
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 (loc_params->type == H5VL_OBJECT_BY_SELF) {
/* H5Aopen */
/* Open the attribute */
if (NULL == (attr = H5A__open(&loc, attr_name)))
HGOTO_ERROR(H5E_ATTR, H5E_CANTOPENOBJ, NULL, "unable to open attribute: '%s'", attr_name)
} /* end if */
else if (loc_params->type == H5VL_OBJECT_BY_NAME) {
/* H5Aopen_by_name */
/* Open the attribute on the object header */
if (NULL == (attr = H5A__open_by_name(&loc, loc_params->loc_data.loc_by_name.name, attr_name)))
HGOTO_ERROR(H5E_ATTR, H5E_CANTOPENOBJ, NULL, "can't open attribute")
} /* end else-if */
else if (loc_params->type == H5VL_OBJECT_BY_IDX) {
/* H5Aopen_by_idx */
/* Open the attribute in the object header */
if (NULL == (attr = H5A__open_by_idx(
&loc, loc_params->loc_data.loc_by_idx.name, loc_params->loc_data.loc_by_idx.idx_type,
loc_params->loc_data.loc_by_idx.order, loc_params->loc_data.loc_by_idx.n)))
HGOTO_ERROR(H5E_ATTR, H5E_CANTOPENOBJ, NULL, "unable to open attribute")
} /* end else-if */
else
HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, NULL, "unknown attribute open parameters")
ret_value = (void *)attr;
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_attr_open() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_attr_read
*
* Purpose: Handles the attribute read callback
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_attr_read(void *attr, hid_t dtype_id, void *buf, hid_t H5_ATTR_UNUSED dxpl_id,
void H5_ATTR_UNUSED **req)
{
H5T_t *mem_type; /* Memory datatype */
herr_t ret_value; /* Return value */
FUNC_ENTER_PACKAGE
if (NULL == (mem_type = (H5T_t *)H5I_object_verify(dtype_id, H5I_DATATYPE)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
/* Go write the actual data to the attribute */
if ((ret_value = H5A__read((H5A_t *)attr, mem_type, buf)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_READERROR, FAIL, "unable to read attribute")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_attr_read() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_attr_write
*
* Purpose: Handles the attribute write callback
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_attr_write(void *attr, hid_t dtype_id, const void *buf, hid_t H5_ATTR_UNUSED dxpl_id,
void H5_ATTR_UNUSED **req)
{
H5T_t *mem_type; /* Memory datatype */
herr_t ret_value; /* Return value */
FUNC_ENTER_PACKAGE
if (NULL == (mem_type = (H5T_t *)H5I_object_verify(dtype_id, H5I_DATATYPE)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
/* Go write the actual data to the attribute */
if ((ret_value = H5A__write((H5A_t *)attr, mem_type, buf)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_WRITEERROR, FAIL, "unable to write attribute")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_attr_write() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_attr_get
*
* Purpose: Handles the attribute get callback
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_attr_get(void *obj, H5VL_attr_get_t get_type, hid_t H5_ATTR_UNUSED dxpl_id,
void H5_ATTR_UNUSED **req, va_list arguments)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch (get_type) {
/* H5Aget_space */
case H5VL_ATTR_GET_SPACE: {
hid_t *ret_id = HDva_arg(arguments, hid_t *);
H5A_t *attr = (H5A_t *)obj;
if ((*ret_id = H5A_get_space(attr)) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_CANTGET, FAIL, "can't get space ID of attribute")
break;
}
/* H5Aget_type */
case H5VL_ATTR_GET_TYPE: {
hid_t *ret_id = HDva_arg(arguments, hid_t *);
H5A_t *attr = (H5A_t *)obj;
if ((*ret_id = H5A__get_type(attr)) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_CANTGET, FAIL, "can't get datatype ID of attribute")
break;
}
/* H5Aget_create_plist */
case H5VL_ATTR_GET_ACPL: {
hid_t *ret_id = HDva_arg(arguments, hid_t *);
H5A_t *attr = (H5A_t *)obj;
if ((*ret_id = H5A__get_create_plist(attr)) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_CANTGET, FAIL, "can't get creation property list for attr")
break;
}
/* H5Aget_name */
case H5VL_ATTR_GET_NAME: {
const H5VL_loc_params_t *loc_params = HDva_arg(arguments, const H5VL_loc_params_t *);
size_t buf_size = HDva_arg(arguments, size_t);
char * buf = HDva_arg(arguments, char *);
ssize_t * ret_val = HDva_arg(arguments, ssize_t *);
H5A_t * attr = NULL;
if (H5VL_OBJECT_BY_SELF == loc_params->type) {
attr = (H5A_t *)obj;
/* Call private function in turn */
if (0 > (*ret_val = H5A__get_name(attr, buf_size, buf)))
HGOTO_ERROR(H5E_ATTR, H5E_CANTGET, FAIL, "can't get attribute name")
}
else if (H5VL_OBJECT_BY_IDX == loc_params->type) {
H5G_loc_t loc;
/* check arguments */
if (H5G_loc_real(obj, loc_params->obj_type, &loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object")
/* Open the attribute on the object header */
if (NULL == (attr = H5A__open_by_idx(&loc, loc_params->loc_data.loc_by_idx.name,
loc_params->loc_data.loc_by_idx.idx_type,
loc_params->loc_data.loc_by_idx.order,
loc_params->loc_data.loc_by_idx.n)))
HGOTO_ERROR(H5E_ATTR, H5E_CANTOPENOBJ, FAIL, "can't open attribute")
/* Get the length of the name */
*ret_val = (ssize_t)HDstrlen(attr->shared->name);
/* Copy the name into the user's buffer, if given */
if (buf) {
HDstrncpy(buf, attr->shared->name, MIN((size_t)(*ret_val + 1), buf_size));
if ((size_t)(*ret_val) >= buf_size)
buf[buf_size - 1] = '\0';
} /* end if */
/* Release resources */
if (attr && H5A__close(attr) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTFREE, FAIL, "can't close attribute")
}
else
HGOTO_ERROR(H5E_SYM, H5E_CANTGET, FAIL, "can't get name of attr")
break;
}
/* H5Aget_info */
case H5VL_ATTR_GET_INFO: {
const H5VL_loc_params_t *loc_params = HDva_arg(arguments, const H5VL_loc_params_t *);
H5A_info_t * ainfo = HDva_arg(arguments, H5A_info_t *);
H5A_t * attr = NULL;
if (H5VL_OBJECT_BY_SELF == loc_params->type) {
attr = (H5A_t *)obj;
if (H5A__get_info(attr, ainfo) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_CANTGET, FAIL, "can't get attribute info")
}
else if (H5VL_OBJECT_BY_NAME == loc_params->type) {
char * attr_name = HDva_arg(arguments, char *);
H5G_loc_t loc;
/* check arguments */
if (H5G_loc_real(obj, loc_params->obj_type, &loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object")
/* Open the attribute on the object header */
if (NULL ==
(attr = H5A__open_by_name(&loc, loc_params->loc_data.loc_by_name.name, attr_name)))
HGOTO_ERROR(H5E_ATTR, H5E_CANTOPENOBJ, FAIL, "can't open attribute")
/* Get the attribute information */
if (H5A__get_info(attr, ainfo) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTGET, FAIL, "unable to get attribute info")
/* Release resources */
if (attr && H5A__close(attr) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTFREE, FAIL, "can't close attribute")
}
else if (H5VL_OBJECT_BY_IDX == loc_params->type) {
H5G_loc_t loc;
/* check arguments */
if (H5G_loc_real(obj, loc_params->obj_type, &loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object")
/* Open the attribute on the object header */
if (NULL == (attr = H5A__open_by_idx(&loc, loc_params->loc_data.loc_by_idx.name,
loc_params->loc_data.loc_by_idx.idx_type,
loc_params->loc_data.loc_by_idx.order,
loc_params->loc_data.loc_by_idx.n)))
HGOTO_ERROR(H5E_ATTR, H5E_CANTOPENOBJ, FAIL, "can't open attribute")
/* Get the attribute information */
if (H5A__get_info(attr, ainfo) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTGET, FAIL, "unable to get attribute info")
/* Release resources */
if (attr && H5A__close(attr) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTFREE, FAIL, "can't close attribute")
}
else
HGOTO_ERROR(H5E_SYM, H5E_CANTGET, FAIL, "can't get name of attr")
break;
}
case H5VL_ATTR_GET_STORAGE_SIZE: {
hsize_t *ret = HDva_arg(arguments, hsize_t *);
H5A_t * attr = (H5A_t *)obj;
/* Set return value */
*ret = attr->shared->data_size;
break;
}
default:
HGOTO_ERROR(H5E_VOL, H5E_CANTGET, FAIL, "can't get this type of information from attr")
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_attr_get() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_attr_specific
*
* Purpose: Handles the attribute specific callback
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_attr_specific(void *obj, const H5VL_loc_params_t *loc_params, H5VL_attr_specific_t specific_type,
hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req, va_list arguments)
{
H5G_loc_t loc;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
/* Get location for passed-in object */
if (H5G_loc_real(obj, loc_params->obj_type, &loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object")
switch (specific_type) {
case H5VL_ATTR_DELETE: {
char *attr_name = HDva_arg(arguments, char *);
if (H5VL_OBJECT_BY_SELF == loc_params->type) {
/* H5Adelete */
/* Delete the attribute from the location */
if (H5O__attr_remove(loc.oloc, attr_name) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTDELETE, FAIL, "unable to delete attribute")
} /* end if */
else if (H5VL_OBJECT_BY_NAME == loc_params->type) {
/* H5Adelete_by_name */
/* Delete the attribute */
if (H5A__delete_by_name(&loc, loc_params->loc_data.loc_by_name.name, attr_name) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTDELETE, FAIL, "unable to delete attribute")
} /* end else-if */
else if (H5VL_OBJECT_BY_IDX == loc_params->type) {
/* H5Adelete_by_idx */
/* Delete the attribute from the location */
if (H5A__delete_by_idx(
&loc, loc_params->loc_data.loc_by_idx.name, loc_params->loc_data.loc_by_idx.idx_type,
loc_params->loc_data.loc_by_idx.order, loc_params->loc_data.loc_by_idx.n) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTDELETE, FAIL, "unable to delete attribute")
} /* end else-if */
else
HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "unknown attribute remove parameters")
break;
}
case H5VL_ATTR_EXISTS: {
const char *attr_name = HDva_arg(arguments, const char *);
htri_t * ret = HDva_arg(arguments, htri_t *);
if (loc_params->type == H5VL_OBJECT_BY_SELF) { /* H5Aexists */
/* Check if the attribute exists */
if ((*ret = H5O__attr_exists(loc.oloc, attr_name)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTGET, FAIL, "unable to determine if attribute exists")
} /* end if */
else if (loc_params->type == H5VL_OBJECT_BY_NAME) { /* H5Aexists_by_name */
/* Check if the attribute exists */
if ((*ret = H5A__exists_by_name(loc, loc_params->loc_data.loc_by_name.name, attr_name)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTGET, FAIL, "unable to determine if attribute exists")
} /* end else-if */
else
HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "unknown parameters")
break;
}
case H5VL_ATTR_ITER: {
H5_index_t idx_type = (H5_index_t)HDva_arg(arguments, int); /* enum work-around */
H5_iter_order_t order = (H5_iter_order_t)HDva_arg(arguments, int); /* enum work-around */
hsize_t * idx = HDva_arg(arguments, hsize_t *);
H5A_operator2_t op = HDva_arg(arguments, H5A_operator2_t);
void * op_data = HDva_arg(arguments, void *);
if (loc_params->type == H5VL_OBJECT_BY_SELF) { /* H5Aiterate2 */
/* Iterate over attributes */
if ((ret_value = H5A__iterate(&loc, ".", idx_type, order, idx, op, op_data)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_BADITER, FAIL, "error iterating over attributes")
} /* end if */
else if (loc_params->type == H5VL_OBJECT_BY_NAME) { /* H5Aiterate_by_name */
/* Iterate over attributes by name */
if ((ret_value = H5A__iterate(&loc, loc_params->loc_data.loc_by_name.name, idx_type, order,
idx, op, op_data)) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_BADITER, FAIL, "attribute iteration failed");
} /* end else-if */
else
HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "unknown parameters")
break;
}
/* H5Arename/rename_by_name */
case H5VL_ATTR_RENAME: {
const char *old_name = HDva_arg(arguments, const char *);
const char *new_name = HDva_arg(arguments, const char *);
if (loc_params->type == H5VL_OBJECT_BY_SELF) { /* H5Arename */
/* Call attribute rename routine */
if (H5O__attr_rename(loc.oloc, old_name, new_name) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTRENAME, FAIL, "can't rename attribute")
} /* end if */
else if (loc_params->type == H5VL_OBJECT_BY_NAME) { /* H5Arename_by_name */
/* Call attribute rename routine */
if (H5A__rename_by_name(loc, loc_params->loc_data.loc_by_name.name, old_name, new_name) < 0)
HGOTO_ERROR(H5E_ATTR, H5E_CANTRENAME, FAIL, "can't rename attribute")
} /* end else-if */
else
HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "unknown attribute rename parameters")
break;
}
default:
HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "invalid specific operation")
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_attr_specific() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_attr_optional
*
* Purpose: Handles the attribute optional callback
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_attr_optional(void H5_ATTR_UNUSED *obj, H5VL_attr_optional_t opt_type,
hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req,
va_list H5_ATTR_DEPRECATED_USED arguments)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch (opt_type) {
#ifndef H5_NO_DEPRECATED_SYMBOLS
case H5VL_NATIVE_ATTR_ITERATE_OLD: {
hid_t loc_id = HDva_arg(arguments, hid_t);
unsigned * attr_num = HDva_arg(arguments, unsigned *);
H5A_operator1_t op = HDva_arg(arguments, H5A_operator1_t);
void * op_data = HDva_arg(arguments, void *);
/* Call the actual iteration routine */
if ((ret_value = H5A__iterate_old(loc_id, attr_num, op, op_data)) < 0)
HERROR(H5E_VOL, H5E_BADITER, "error iterating over attributes");
break;
}
#endif /* H5_NO_DEPRECATED_SYMBOLS */
default:
HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "invalid optional operation")
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_attr_optional() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_attr_close
*
* Purpose: Handles the attribute close callback
*
* Return: Success: SUCCEED
* Failure: FAIL (attribute will not be closed)
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_attr_close(void *attr, hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
if (H5A__close((H5A_t *)attr) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTDEC, FAIL, "can't close attribute")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_attr_close() */
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