mirror of
https://github.com/HDFGroup/hdf5.git
synced 2024-12-09 07:32:32 +08:00
8277409a9b
More misc. cleanups, but main change is to make an "extern" header file
for the plugin interface.
Tested on:
Mac OSX/64 10.8.3 (amazon)
98 lines
3.7 KiB
C
98 lines
3.7 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
|
|
* 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 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 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: Raymond Lu
|
|
* 13 February 2013
|
|
*
|
|
* Purpose: Tests the plugin module (H5PL)
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include "H5PLextern.h"
|
|
|
|
#define H5Z_FILTER_DYNLIB1 257
|
|
|
|
static size_t H5Z_filter_dynlib1(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_DYNLIB1[1] = {{
|
|
H5Z_CLASS_T_VERS, /* H5Z_class_t version */
|
|
H5Z_FILTER_DYNLIB1, /* Filter id number */
|
|
1, 1, /* Encoding and decoding enabled */
|
|
"dynlib1", /* Filter name for debugging */
|
|
NULL, /* The "can apply" callback */
|
|
NULL, /* The "set local" callback */
|
|
(H5Z_func_t)H5Z_filter_dynlib1, /* The actual filter function */
|
|
}};
|
|
|
|
H5PL_type_t H5PLget_plugin_type(void) {return H5PL_TYPE_FILTER;}
|
|
const void *H5PLget_plugin_info(void) {return H5Z_DYNLIB1;}
|
|
|
|
/*-------------------------------------------------------------------------
|
|
* Function: H5Z_filter_dynlib1
|
|
*
|
|
* Purpose: A dynlib1 filter method that adds on and subtract from
|
|
* the original value with another value. It will be built
|
|
* as a shared library. plugin.c test will load and use
|
|
* this filter library.
|
|
*
|
|
* Return: Success: Data chunk size
|
|
*
|
|
* Failure: 0
|
|
*
|
|
* Programmer: Raymond Lu
|
|
* 29 March 2013
|
|
*
|
|
*-------------------------------------------------------------------------
|
|
*/
|
|
static size_t
|
|
H5Z_filter_dynlib1(unsigned int flags, size_t cd_nelmts,
|
|
const unsigned int *cd_values, size_t nbytes,
|
|
size_t *buf_size, void **buf)
|
|
{
|
|
int *int_ptr = (int *)*buf; /* Pointer to the data values */
|
|
size_t buf_left = *buf_size; /* Amount of data buffer left to process */
|
|
int add_on = 0;
|
|
|
|
/* Check for the correct number of parameters */
|
|
if(cd_nelmts == 0)
|
|
return(0);
|
|
|
|
/* Check that permanent parameters are set correctly */
|
|
if(cd_values[0] > 9)
|
|
return(0);
|
|
|
|
add_on = (int)cd_values[0];
|
|
|
|
if(flags & H5Z_FLAG_REVERSE) { /*read*/
|
|
/* Substract the "add on" value to all the data values */
|
|
while(buf_left > 0) {
|
|
*int_ptr++ -= add_on;
|
|
buf_left -= sizeof(int);
|
|
} /* end while */
|
|
} /* end if */
|
|
else { /*write*/
|
|
/* Add the "add on" value to all the data values */
|
|
while(buf_left > 0) {
|
|
*int_ptr++ += add_on;
|
|
buf_left -= sizeof(int);
|
|
} /* end while */
|
|
} /* end else */
|
|
|
|
return nbytes;
|
|
} /* end H5Z_filter_dynlib1() */
|
|
|