ad80fae3cc
* commit '0a2bb11b248df6841daabca3970df5d8504adfc7': address problems from comments fix and address comments change according to previous comments add missing piece remove unnecessary check macro fix intel compile warnings Revert "fix warnings from Intel compiler" Revert "fix warnings and some text alignment" Revert "let hdf5 pick up the right compiler in Intel environment" Revert "fix issues from previous PR comments" Revert "using a different MACRO" using a different MACRO fix issues from previous PR comments let hdf5 pick up the right compiler in Intel environment fix warnings and some text alignment fix warnings from Intel compiler
90 lines
3.6 KiB
C
90 lines
3.6 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the COPYING file, which can be found at the root of the source code *
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* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
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* If you do not have access to either file, you may request a copy from *
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* help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/*
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* Purpose: Tests the plugin module (H5PL)
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include "H5PLextern.h"
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#define H5Z_FILTER_DYNLIBUD 300
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#define MULTIPLIER 3
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static size_t H5Z_filter_dynlibud(unsigned int flags, size_t cd_nelmts,
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const unsigned int *cd_values, size_t nbytes, size_t *buf_size, void **buf);
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/* This message derives from H5Z */
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const H5Z_class2_t H5Z_DYNLIBUD[1] = {{
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H5Z_CLASS_T_VERS, /* H5Z_class_t version */
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H5Z_FILTER_DYNLIBUD, /* Filter id number */
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1, 1, /* Encoding and decoding enabled */
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"dynlibud", /* Filter name for debugging */
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NULL, /* The "can apply" callback */
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NULL, /* The "set local" callback */
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(H5Z_func_t)H5Z_filter_dynlibud, /* The actual filter function */
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}};
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H5PL_type_t H5PLget_plugin_type(void) {return H5PL_TYPE_FILTER;}
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const void *H5PLget_plugin_info(void) {return H5Z_DYNLIBUD;}
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/*-------------------------------------------------------------------------
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* Function: H5Z_filter_dynlibud
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*
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* Purpose: A dynlib2 filter method that multiplies the original value
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* during write and divide the original value during read. It
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* will be built as a shared library. plugin.c test will load
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* and use this filter library.
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*
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* Return: Success: Data chunk size
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*
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* Failure: 0
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*-------------------------------------------------------------------------
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*/
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static size_t
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H5Z_filter_dynlibud(unsigned int flags, size_t cd_nelmts,
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const unsigned int *cd_values, size_t nbytes,
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size_t *buf_size, void **buf)
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{
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char *int_ptr = (char *)*buf; /* Pointer to the data values */
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size_t buf_left = *buf_size; /* Amount of data buffer left to process */
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/* Check for the correct number of parameters */
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if(cd_nelmts > 0)
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return(0);
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/* Assignment to eliminate unused parameter warning. */
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cd_values = cd_values;
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if(flags & H5Z_FLAG_REVERSE) { /*read*/
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/* Subtract the original value with MULTIPLIER */
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while(buf_left > 0) {
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char temp = *int_ptr;
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*int_ptr = (int8_t)(temp - MULTIPLIER);
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int_ptr++;
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buf_left -= sizeof(*int_ptr);
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} /* end while */
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} /* end if */
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else { /*write*/
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/* Add the original value with MULTIPLIER */
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while(buf_left > 0) {
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char temp = *int_ptr;
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*int_ptr = (int8_t)(temp + MULTIPLIER);
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int_ptr++;
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buf_left -= sizeof(*int_ptr);
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} /* end while */
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} /* end else */
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return nbytes;
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} /* end H5Z_filter_dynlibud() */
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