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author | Raymond Lu <songyulu@hdfgroup.org> | 2013-04-01 20:42:58 (GMT) |
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committer | Raymond Lu <songyulu@hdfgroup.org> | 2013-04-01 20:42:58 (GMT) |
commit | 95332ad1770877b3b4558eb91a2dae4a0dd5aab1 (patch) | |
tree | ced08b53e3c6474b4a6656d4c3399f1d96b4b40d /test/dynlib2.c | |
parent | 91bcf7432e992d58741fe1925bb93bf32feb3358 (diff) | |
download | hdf5-95332ad1770877b3b4558eb91a2dae4a0dd5aab1.zip hdf5-95332ad1770877b3b4558eb91a2dae4a0dd5aab1.tar.gz hdf5-95332ad1770877b3b4558eb91a2dae4a0dd5aab1.tar.bz2 |
[svn-r23510] I merged the changes for DESY project from the trunk (r23496) into this 1.8 DESY branch.
Tested with h5committest (duck failed with CMake because I don't know how to change test/CMakeLists.txt. I'll wait for Allen to do it).
Diffstat (limited to 'test/dynlib2.c')
-rw-r--r-- | test/dynlib2.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/test/dynlib2.c b/test/dynlib2.c new file mode 100644 index 0000000..d82a44d --- /dev/null +++ b/test/dynlib2.c @@ -0,0 +1,95 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * 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: Raymond Lu + * 13 February 2013 + * + * Purpose: Tests the plugin module (H5PL) + */ + +#include <stdlib.h> +#include <stdio.h> +#include <math.h> +#include <hdf5.h> + +#define H5Z_FILTER_DYNLIB2 258 + +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 */ +}}; + +const H5PL_type_t H5PL_get_plugin_type(void) {return H5PL_TYPE_FILTER;} +const H5Z_class2_t* H5PL_get_plugin_info(void) {return H5Z_DYNLIB2;} + +/*------------------------------------------------------------------------- + * Function: H5Z_filter_dynlib2 + * + * Purpose: A dynlib2 filter method that assigns the power of 2 of the + * original value during write and calculates the square root + * of 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 + * + * Failure: 0 + * + * Programmer: Raymond Lu + * 29 March 2013 + * + *------------------------------------------------------------------------- + */ +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) +{ + int *int_ptr=(int *)*buf; /* Pointer to the data values */ + size_t buf_left=*buf_size; /* Amount of data buffer left to process */ + + /* Check for the correct number of parameters */ + if(cd_nelmts>0) + return(0); + + if(flags & H5Z_FLAG_REVERSE) { /*read*/ + /* Calculate and assign the square root for all the data values */ + while(buf_left>0) { + *int_ptr = (int)sqrt((double)*int_ptr); + *int_ptr++; + buf_left -= sizeof(int); + } /* end while */ + } /* end if */ + else { /*write*/ + /* Calculate and assign the power of 2 to all the data values */ + while(buf_left>0) { + *int_ptr = (int)pow((double)*int_ptr, 2); + *int_ptr++; + buf_left -= sizeof(int); + } /* end while */ + } /* end else */ + + return nbytes; +} |