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gen_filters.c
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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 [email protected]. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include "h5test.h"
#define TESTFILE1 "test_filters.h5"
#define TESTFILE2 "filter_error.h5"
#define DSETNAME "dataset_with_filter"
/* Temporary filter IDs used for testing */
#define H5Z_FILTER_BOGUS 305
/* Local prototypes for filter functions */
static size_t filter_bogus(unsigned int flags, size_t cd_nelmts,
const unsigned int *cd_values, size_t nbytes, size_t *buf_size, void **buf);
/*-------------------------------------------------------------------------
* Function: create_file_with_bogus_filter
*
* Purpose: Create a dataset with the fletcher filter.
* This function is used to create the test file `test_filters.h5'
* which has a dataset with the "fletcher" I/O filter. This dataset
* will be used to verify the correct behavior of the library in
* the test "dsets"
*
* Return: Success: 0
*
* Failure: -1
*
* Programmer: Pedro Vicente <[email protected]>
* Thursday, March 25, 2004
*
*-------------------------------------------------------------------------
*/
static herr_t
test_filters_endianess(void)
{
#if defined H5_HAVE_FILTER_FLETCHER32
hid_t fid = -1; /* file ID */
hid_t dsid = -1; /* dataset ID */
hid_t sid = -1; /* dataspace ID */
hid_t dcpl = -1; /* dataset creation property list ID */
hsize_t dims[1] = {20}; /* dataspace dimensions */
hsize_t chunk_dims[1] = {10}; /* chunk dimensions */
int buf[20];
int rank = 1;
int i;
for(i = 0; i < 20; i++)
buf[i] = 1;
/* create a file using default properties */
if((fid = H5Fcreate(TESTFILE1, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0) goto error;
/* create a data space */
if((sid = H5Screate_simple(rank, dims, NULL)) < 0) goto error;
/* create dcpl */
if((dcpl = H5Pcreate(H5P_DATASET_CREATE)) < 0) goto error;
if(H5Pset_chunk(dcpl, rank, chunk_dims) < 0) goto error;
if(H5Pset_fletcher32(dcpl) < 0) goto error;
/* create a dataset */
if((dsid = H5Dcreate2(fid, "dset", H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0) goto error;
if(H5Dwrite(dsid, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0) goto error;
/* close */
if(H5Pclose(dcpl) < 0) goto error;
if(H5Dclose(dsid) < 0) goto error;
if(H5Sclose(sid) < 0) goto error;
if(H5Fclose(fid) < 0) goto error;
#endif /* H5_HAVE_FILTER_FLETCHER32 */
return 0;
#if defined H5_HAVE_FILTER_FLETCHER32
error:
H5E_BEGIN_TRY {
H5Pclose(dcpl);
H5Dclose(dsid);
H5Sclose(sid);
H5Fclose(fid);
} H5E_END_TRY;
return -1;
#endif /* H5_HAVE_FILTER_FLETCHER32 */
} /* end test_filters_endianess() */
/* This message derives from H5Z */
const H5Z_class2_t H5Z_BOGUS[1] = {{
H5Z_CLASS_T_VERS, /* H5Z_class_t version */
H5Z_FILTER_BOGUS, /* Filter id number */
1, 1, /* Encoding and decoding enabled */
"bogus", /* Filter name for debugging */
NULL, /* The "can apply" callback */
NULL, /* The "set local" callback */
filter_bogus, /* The actual filter function */
}};
/*-------------------------------------------------------------------------
* Function: filter_bogus
*
* Purpose: A bogus compression method that doesn't do anything.
*
* Return: Success: Data chunk size
*
* Failure: 0
*
* Programmer: Raymond Lu
* 2 June 2011
*
*-------------------------------------------------------------------------
*/
static size_t
filter_bogus(unsigned int UNUSED flags, size_t UNUSED cd_nelmts,
const unsigned int UNUSED *cd_values, size_t nbytes,
size_t UNUSED *buf_size, void UNUSED **buf)
{
return nbytes;
}
/*-------------------------------------------------------------------------
* Function: create_file_with_bogus_filter
*
* Purpose: Create a file and a dataset with a bogus filter enabled
*
* Return: Success: 0
*
* Failure: -1
*
* Programmer: Raymond Lu
* 2 June 2011
*
*-------------------------------------------------------------------------
*/
static herr_t
create_file_with_bogus_filter(void)
{
hid_t fid = -1; /* file ID */
hid_t dsid = -1; /* dataset ID */
hid_t sid = -1; /* dataspace ID */
hid_t dcpl = -1; /* dataset creation property list ID */
hsize_t dims[1] = {20}; /* dataspace dimensions */
hsize_t chunk_dims[1] = {10}; /* chunk dimensions */
int buf[20];
int rank = 1;
int i;
for(i = 0; i < 20; i++)
buf[i] = 1;
/* create a file using default properties */
if((fid = H5Fcreate(TESTFILE2, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0) goto error;
/* create a data space */
if((sid = H5Screate_simple(rank, dims, NULL)) < 0) goto error;
/* create dcpl */
if((dcpl = H5Pcreate(H5P_DATASET_CREATE)) < 0) goto error;
/* create chunking */
if(H5Pset_chunk(dcpl, rank, chunk_dims) < 0) goto error;
/* register bogus filter */
if(H5Zregister (H5Z_BOGUS) < 0) goto error;
if(H5Pset_filter(dcpl, H5Z_FILTER_BOGUS, 0, (size_t)0, NULL) < 0) goto error;
/* create a dataset */
if((dsid = H5Dcreate2(fid, DSETNAME, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0) goto error;
if(H5Dwrite(dsid, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0) goto error;
/* close */
if(H5Pclose(dcpl) < 0) goto error;
if(H5Dclose(dsid) < 0) goto error;
if(H5Sclose(sid) < 0) goto error;
if(H5Fclose(fid) < 0) goto error;
return 0;
error:
H5E_BEGIN_TRY {
H5Pclose(dcpl);
H5Dclose(dsid);
H5Sclose(sid);
H5Fclose(fid);
} H5E_END_TRY;
return -1;
}
/*-------------------------------------------------------------------------
* Function: main
*
* Purpose: call the generator function
*
* Return: Success:
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
int
main(void)
{
int nerrors = 0;
nerrors += test_filters_endianess() < 0 ? 1 : 0;
nerrors += create_file_with_bogus_filter() < 0 ? 1 : 0;
if(nerrors)
goto error;
printf("All tests passed.\n");
return 0;
error:
nerrors = MAX(1, nerrors);
printf("***** %d GEN_FILTERS FAILURES *****\n", nerrors);
return 1;
}