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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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Purpose: Datatype callbacks for the native VOL connector
*
*/
/****************/
/* Module Setup */
/****************/
#define H5T_FRIEND /* Suppress error about including H5Tpkg */
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5Gprivate.h" /* Groups */
#include "H5Iprivate.h" /* IDs */
#include "H5Oprivate.h" /* Object headers */
#include "H5Pprivate.h" /* Property lists */
#include "H5Tpkg.h" /* Datatypes */
#include "H5VLprivate.h" /* Virtual Object Layer */
#include "H5VLnative_private.h" /* Native VOL connector */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Local Prototypes */
/********************/
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/*-------------------------------------------------------------------------
* Function: H5VL__native_datatype_commit
*
* Purpose: Handles the datatype commit callback
*
* Return: Success: datatype pointer
* Failure: NULL
*
*-------------------------------------------------------------------------
*/
void *
H5VL__native_datatype_commit(void *obj, const H5VL_loc_params_t *loc_params, const char *name, hid_t type_id,
hid_t lcpl_id, hid_t tcpl_id, hid_t H5_ATTR_UNUSED tapl_id,
hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req)
{
H5G_loc_t loc; /* Location to commit datatype */
H5T_t *dt; /* Datatype for ID */
H5T_t *type = NULL; /* copy of the original type which will be committed */
void *ret_value = NULL; /* Return 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 (NULL == (dt = (H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a datatype");
/* Check arguments. We cannot commit an immutable type because H5Tclose()
* normally fails on such types (try H5Tclose(H5T_NATIVE_INT)) but closing
* a named type should always succeed.
*/
if (H5T_STATE_NAMED == dt->shared->state || H5T_STATE_OPEN == dt->shared->state)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, NULL, "datatype is already committed");
if (H5T_STATE_IMMUTABLE == dt->shared->state)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, NULL, "datatype is immutable");
/* Check for a "sensible" datatype to store on disk */
if (H5T_is_sensible(dt) <= 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "datatype is not sensible");
/* Copy the datatype - the copied one will be the type that is
* committed, and attached to original datatype above the VOL
* layer
*/
if (NULL == (type = H5T_copy(dt, H5T_COPY_TRANSIENT)))
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "unable to copy");
/* Commit the datatype */
if (NULL != name) {
/* H5Tcommit */
if (H5T__commit_named(&loc, name, type, lcpl_id, tcpl_id) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "unable to commit datatype");
} /* end if */
else {
/* H5Tcommit_anon */
if (H5T__commit_anon(loc.oloc->file, type, tcpl_id) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "unable to commit datatype");
} /* end else */
ret_value = (void *)type;
done:
if (NULL == ret_value && type)
H5T_close(type);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_datatype_commit() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_datatype_open
*
* Purpose: Handles the datatype open callback
*
* Return: Success: datatype pointer
* Failure: NULL
*
*-------------------------------------------------------------------------
*/
void *
H5VL__native_datatype_open(void *obj, const H5VL_loc_params_t *loc_params, const char *name,
hid_t H5_ATTR_UNUSED tapl_id, hid_t H5_ATTR_UNUSED dxpl_id,
void H5_ATTR_UNUSED **req)
{
H5T_t *type = NULL; /* Datatype opened in file */
H5G_loc_t loc; /* Group location of object to open */
void *ret_value = NULL;
FUNC_ENTER_PACKAGE
if (H5G_loc_real(obj, loc_params->obj_type, &loc) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a file or file object");
/* Open the datatype */
if (NULL == (type = H5T__open_name(&loc, name)))
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTOPENOBJ, NULL, "unable to open named datatype");
type->vol_obj = NULL;
ret_value = (void *)type;
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_datatype_open() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_datatype_get
*
* Purpose: Handles the datatype get callback
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_datatype_get(void *obj, H5VL_datatype_get_args_t *args, hid_t H5_ATTR_UNUSED dxpl_id,
void H5_ATTR_UNUSED **req)
{
H5T_t *dt = (H5T_t *)obj;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch (args->op_type) {
/* H5T_construct_datatype (library private routine) */
case H5VL_DATATYPE_GET_BINARY_SIZE: {
if (H5T_encode(dt, NULL, args->args.get_binary_size.size) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "can't determine serialized length of datatype");
break;
}
/* H5T_construct_datatype (library private routine) */
case H5VL_DATATYPE_GET_BINARY: {
if (H5T_encode(dt, args->args.get_binary.buf, &args->args.get_binary.buf_size) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTSERIALIZE, FAIL, "can't serialize datatype");
break;
}
/* H5Tget_create_plist */
case H5VL_DATATYPE_GET_TCPL: {
if (H5I_INVALID_HID == (args->args.get_tcpl.tcpl_id = H5T__get_create_plist(dt)))
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "can't get object creation info");
break;
}
default:
HGOTO_ERROR(H5E_VOL, H5E_CANTGET, FAIL, "can't get this type of information from datatype");
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_datatype_get() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_datatype_specific
*
* Purpose: Handles the datatype specific callback
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_datatype_specific(void *obj, H5VL_datatype_specific_args_t *args, hid_t H5_ATTR_UNUSED dxpl_id,
void H5_ATTR_UNUSED **req)
{
H5T_t *dt = (H5T_t *)obj;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch (args->op_type) {
/* H5VL_DATATYPE_FLUSH */
case H5VL_DATATYPE_FLUSH: {
/* Currently, H6Oflush causes H5Fclose to trigger an assertion failure in metadata cache.
* Leave this situation for the future solution */
if (H5F_HAS_FEATURE(dt->oloc.file, H5FD_FEAT_HAS_MPI))
HGOTO_ERROR(H5E_DATASET, H5E_UNSUPPORTED, FAIL, "H5Oflush isn't supported for parallel");
if (H5O_flush_common(&dt->oloc, args->args.flush.type_id) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTFLUSH, FAIL, "unable to flush datatype");
break;
}
/* H5VL_DATATYPE_REFRESH */
case H5VL_DATATYPE_REFRESH: {
if ((H5O_refresh_metadata(&dt->oloc, args->args.refresh.type_id)) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTLOAD, FAIL, "unable to refresh datatype");
break;
}
default:
HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "invalid specific operation");
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_datatype_specific() */
/*-------------------------------------------------------------------------
* Function: H5VL__native_datatype_close
*
* Purpose: Handles the datatype close callback
*
* Return: Success: SUCCEED
* Failure: FAIL (datatype will not be closed)
*
*-------------------------------------------------------------------------
*/
herr_t
H5VL__native_datatype_close(void *dt, hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
if (H5T_close((H5T_t *)dt) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTDEC, FAIL, "can't close datatype");
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL__native_datatype_close() */
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