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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: The native VOL connector where access is to a single HDF5 file
* using HDF5 VFDs.
*/
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5Iprivate.h" /* IDs */
#include "H5Pprivate.h" /* Property lists */
#include "H5VLprivate.h" /* Virtual Object Layer */
#include "H5VLnative_private.h" /* Native VOL connector */
/* The VOL connector identification number */
static hid_t H5VL_NATIVE_ID_g = H5I_INVALID_HID;
/* Prototypes */
static herr_t H5VL__native_term(void);
/* Native VOL connector class struct */
static const H5VL_class_t H5VL_native_cls_g = {
H5VL_NATIVE_VERSION, /* version */
H5VL_NATIVE_VALUE, /* value */
H5VL_NATIVE_NAME, /* name */
0, /* capability flags */
NULL, /* initialize */
H5VL__native_term, /* terminate */
{ /* info_cls */
(size_t)0, /* info size */
NULL, /* info copy */
NULL, /* info compare */
NULL, /* info free */
NULL, /* info to str */
NULL /* str to info */
},
{ /* wrap_cls */
NULL, /* get_object */
NULL, /* get_wrap_ctx */
NULL, /* wrap_object */
NULL, /* unwrap_object */
NULL /* free_wrap_ctx */
},
{ /* attribute_cls */
H5VL__native_attr_create, /* create */
H5VL__native_attr_open, /* open */
H5VL__native_attr_read, /* read */
H5VL__native_attr_write, /* write */
H5VL__native_attr_get, /* get */
H5VL__native_attr_specific, /* specific */
H5VL__native_attr_optional, /* optional */
H5VL__native_attr_close /* close */
},
{ /* dataset_cls */
H5VL__native_dataset_create, /* create */
H5VL__native_dataset_open, /* open */
H5VL__native_dataset_read, /* read */
H5VL__native_dataset_write, /* write */
H5VL__native_dataset_get, /* get */
H5VL__native_dataset_specific, /* specific */
H5VL__native_dataset_optional, /* optional */
H5VL__native_dataset_close /* close */
},
{ /* datatype_cls */
H5VL__native_datatype_commit, /* commit */
H5VL__native_datatype_open, /* open */
H5VL__native_datatype_get, /* get */
H5VL__native_datatype_specific, /* specific */
NULL, /* optional */
H5VL__native_datatype_close /* close */
},
{ /* file_cls */
H5VL__native_file_create, /* create */
H5VL__native_file_open, /* open */
H5VL__native_file_get, /* get */
H5VL__native_file_specific, /* specific */
H5VL__native_file_optional, /* optional */
H5VL__native_file_close /* close */
},
{ /* group_cls */
H5VL__native_group_create, /* create */
H5VL__native_group_open, /* open */
H5VL__native_group_get, /* get */
H5VL__native_group_specific, /* specific */
H5VL__native_group_optional, /* optional */
H5VL__native_group_close /* close */
},
{ /* link_cls */
H5VL__native_link_create, /* create */
H5VL__native_link_copy, /* copy */
H5VL__native_link_move, /* move */
H5VL__native_link_get, /* get */
H5VL__native_link_specific, /* specific */
NULL /* optional */
},
{ /* object_cls */
H5VL__native_object_open, /* open */
H5VL__native_object_copy, /* copy */
H5VL__native_object_get, /* get */
H5VL__native_object_specific, /* specific */
H5VL__native_object_optional /* optional */
},
{ /* introspect_cls */
H5VL__native_introspect_get_conn_cls, /* get_conn_cls */
H5VL__native_introspect_opt_query, /* opt_query */
},
{ /* request_cls */
NULL, /* wait */
NULL, /* notify */
NULL, /* cancel */
NULL, /* specific */
NULL, /* optional */
NULL /* free */
},
{ /* blob_cls */
H5VL__native_blob_put, /* put */
H5VL__native_blob_get, /* get */
H5VL__native_blob_specific, /* specific */
NULL /* optional */
},
NULL /* optional */
};
/*-------------------------------------------------------------------------
* Function: H5VL_native_register
*
* Purpose: Register the native VOL connector and retrieve an ID for it.
*
* Return: Success: The ID for the native connector
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
hid_t
H5VL_native_register(void)
{
hid_t ret_value = H5I_INVALID_HID; /* Return value */
FUNC_ENTER_NOAPI(H5I_INVALID_HID)
/* Register the native VOL connector, if it isn't already */
if(H5I_INVALID_HID == H5VL_NATIVE_ID_g)
if((H5VL_NATIVE_ID_g = H5VL_register_connector(&H5VL_native_cls_g, TRUE, H5P_DEFAULT)) < 0)
HGOTO_ERROR(H5E_VOL, H5E_CANTINSERT, H5I_INVALID_HID, "can't create ID for native VOL connector")
/* Set return value */
ret_value = H5VL_NATIVE_ID_g;
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5VL_native_register() */
/*---------------------------------------------------------------------------
* Function: H5VL__native_term
*
* Purpose: Shut down the native VOL
*
* Returns: SUCCEED (Can't fail)
*
*---------------------------------------------------------------------------
*/
static herr_t
H5VL__native_term(void)
{
FUNC_ENTER_STATIC_NOERR
/* Reset VOL ID */
H5VL_NATIVE_ID_g = H5I_INVALID_HID;
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5VL__native_term() */
/*---------------------------------------------------------------------------
* Function: H5VL__native_introspect_get_conn_cls
*
* Purpose: Query the connector class.
*
* Note: This routine is in this file so that it can return the address
* of the staticly declared class struct.
*
* Returns: SUCCEED (Can't fail)
*
*---------------------------------------------------------------------------
*/
herr_t
H5VL__native_introspect_get_conn_cls(void H5_ATTR_UNUSED *obj,
H5VL_get_conn_lvl_t H5_ATTR_UNUSED lvl, const H5VL_class_t **conn_cls)
{
FUNC_ENTER_PACKAGE_NOERR
/* Sanity check */
HDassert(conn_cls);
/* Retrieve the native VOL connector class */
*conn_cls = &H5VL_native_cls_g;
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5VL__native_introspect_get_conn_cls() */
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