hdf5_ep

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

 * 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.                                                        *

 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/*

 * Programmer:  Raymond Lu

 *      13 February 2013

 *

 * Purpose: Tests the plugin module (H5PL)

 */

​

#include <stdlib.h>

#include <stdio.h>

#include "H5PLextern.h"

​

#define H5Z_FILTER_DYNLIB2      258 

#define MULTIPLIER              3

​

static size_t H5Z_filter_dynlib2(unsigned int flags, size_t cd_nelmts,

                const unsigned int *cd_values, size_t nbytes, size_t *buf_size, void **buf);

​

/* This message derives from H5Z */

const H5Z_class2_t H5Z_DYNLIB2[1] = {{

    H5Z_CLASS_T_VERS,                /* H5Z_class_t version             */

    H5Z_FILTER_DYNLIB2,          /* Filter id number        */

    1, 1,                            /* Encoding and decoding enabled   */

    "dynlib2",               /* Filter name for debugging   */

    NULL,                            /* The "can apply" callback        */

    NULL,                            /* The "set local" callback        */

    (H5Z_func_t)H5Z_filter_dynlib2,    /* The actual filter function    */

}};

​

H5PL_type_t   H5PLget_plugin_type(void) {return H5PL_TYPE_FILTER;}

const void   *H5PLget_plugin_info(void) {return H5Z_DYNLIB2;}

​

/*-------------------------------------------------------------------------

 * Function:    H5Z_filter_dynlib2

 *

 * Purpose: A dynlib2 filter method that multiplies the original value 

 *              during write and divide the original value during read. It

 *              will be built as a shared library.  plugin.c test will load 

 *              and use this filter library.    

 *

 * Return:  Success:    Data chunk size