hdf5/src/H5Dtest.c

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * Copyright by the Board of Trustees of the University of Illinois.         *
 * 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 files COPYING and Copyright.html.  COPYING can be found at the root   *
 * of the source code distribution tree; Copyright.html can be found at the  *
 * root level of an installed copy of the electronic HDF5 document set and   *
 * is linked from the top-level documents page.  It can also be found at     *
 * http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
 * access to either file, you may request a copy from help@hdfgroup.org.     *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/* Programmer:  Quincey Koziol <koziol@ncsa.uiuc.edu>
 *              Thursday, May 27, 2004
 *
 * Purpose:	Dataset testing functions.
 */

/****************/
/* Module Setup */
/****************/

#define H5D_PACKAGE		/*suppress error about including H5Dpkg	  */
#define H5D_TESTING		/*suppress warning about H5D testing funcs*/


/***********/
/* Headers */
/***********/
#include "H5private.h"		/* Generic Functions			*/
#include "H5Dpkg.h"		/* Datasets 				*/
#include "H5Eprivate.h"		/* Error handling		  	*/
#include "H5Iprivate.h"		/* IDs			  		*/


/****************/
/* Local Macros */
/****************/


/******************/
/* Local Typedefs */
/******************/


/********************/
/* Local Prototypes */
/********************/


/*********************/
/* Package Variables */
/*********************/


/*******************/
/* Local Variables */
/*******************/



/*--------------------------------------------------------------------------
 NAME
    H5D__layout_version_test
 PURPOSE
    Determine the storage layout version for a dataset's layout information
 USAGE
    herr_t H5D__layout_version_test(did, version)
        hid_t did;              IN: Dataset to query
        unsigned *version;      OUT: Pointer to location to place version info
 RETURNS
    Non-negative on success, negative on failure
 DESCRIPTION
    Checks the version of the storage layout information for a dataset.
 GLOBAL VARIABLES
 COMMENTS, BUGS, ASSUMPTIONS
    DO NOT USE THIS FUNCTION FOR ANYTHING EXCEPT TESTING
 EXAMPLES
 REVISION LOG
--------------------------------------------------------------------------*/
herr_t
H5D__layout_version_test(hid_t did, unsigned *version)
{
    H5D_t	*dset;          /* Pointer to dataset to query */
    herr_t ret_value = SUCCEED; /* return value */

    FUNC_ENTER_PACKAGE

    /* Check args */
    if(NULL == (dset = (H5D_t *)H5I_object_verify(did, H5I_DATASET)))
        HGOTO_ERROR(H5E_DATASET, H5E_BADTYPE, FAIL, "not a dataset")

    if(version)
        *version = dset->shared->layout.version;

done:
    FUNC_LEAVE_NOAPI(ret_value)
}   /* H5D__layout_version_test() */


/*--------------------------------------------------------------------------
 NAME
    H5D__layout_contig_size_test
 PURPOSE
    Determine the size of a contiguous layout for a dataset's layout information
 USAGE
    herr_t H5D__layout_contig_size_test(did, size)
        hid_t did;              IN: Dataset to query
        hsize_t *size;          OUT: Pointer to location to place size info
 RETURNS
    Non-negative on success, negative on failure
 DESCRIPTION
    Checks the size of a contiguous dataset's storage.
 GLOBAL VARIABLES
 COMMENTS, BUGS, ASSUMPTIONS
    DO NOT USE THIS FUNCTION FOR ANYTHING EXCEPT TESTING
 EXAMPLES
 REVISION LOG
--------------------------------------------------------------------------*/
herr_t
H5D__layout_contig_size_test(hid_t did, hsize_t *size)
{
    H5D_t	*dset;          /* Pointer to dataset to query */
    herr_t ret_value = SUCCEED; /* return value */

    FUNC_ENTER_PACKAGE

    /* Check args */
    if(NULL == (dset = (H5D_t *)H5I_object_verify(did, H5I_DATASET)))
        HGOTO_ERROR(H5E_DATASET, H5E_BADTYPE, FAIL, "not a dataset")

    if(size) {
        HDassert(dset->shared->layout.type == H5D_CONTIGUOUS);
        *size = dset->shared->layout.storage.u.contig.size;
    } /* end if */

done:
    FUNC_LEAVE_NOAPI(ret_value)
}   /* H5D__layout_contig_size_test() */


/*--------------------------------------------------------------------------
 NAME
    H5D__current_cache_size_test
 PURPOSE
    Determine current the size of the dataset's chunk cache
 USAGE
    herr_t H5D__current_cache_size_test(did, size)
        hid_t did;              IN: Dataset to query
        hsize_t *size;          OUT: Pointer to location to place size info
 RETURNS
    Non-negative on success, negative on failure
 DESCRIPTION
    Checks the size of a contiguous dataset's storage.
 GLOBAL VARIABLES
 COMMENTS, BUGS, ASSUMPTIONS
    DO NOT USE THIS FUNCTION FOR ANYTHING EXCEPT TESTING
 EXAMPLES
 REVISION LOG
--------------------------------------------------------------------------*/
herr_t
H5D__current_cache_size_test(hid_t did, size_t *nbytes_used, int *nused)
{
    H5D_t	*dset;          /* Pointer to dataset to query */
    herr_t ret_value = SUCCEED;   /* return value */

    FUNC_ENTER_PACKAGE

    /* Check args */
    if(NULL == (dset = (H5D_t *)H5I_object_verify(did, H5I_DATASET)))
        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataset")

    if(nbytes_used) {
        HDassert(dset->shared->layout.type == H5D_CHUNKED);
        *nbytes_used = dset->shared->cache.chunk.nbytes_used;
    } /* end if */

    if(nused) {
        HDassert(dset->shared->layout.type == H5D_CHUNKED);
        *nused = dset->shared->cache.chunk.nused;
    } /* end if */

done:
    FUNC_LEAVE_NOAPI(ret_value)
}   /* H5D__current_cache_size_test() */