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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 help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "h5repack.h"
#include "H5private.h"
#include "h5tools_utils.h"
#include "h5diff.h"
#include "h5tools.h"
extern char *progname;
/*-------------------------------------------------------------------------
* Function: check_objects
*
* Purpose: locate all HDF5 objects in the file and compare with user
* supplied list
*
* Return: 0, ok, -1 no
*
* Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
*
* Date: September, 23, 2003
*
*-------------------------------------------------------------------------
*/
int check_objects(const char* fname,
pack_opt_t *options)
{
hid_t fid;
unsigned int i;
trav_table_t *travt = NULL;
/* nothing to do */
if(options->op_tbl->nelems == 0)
return 0;
/*-------------------------------------------------------------------------
* open the file
*-------------------------------------------------------------------------
*/
if((fid = h5tools_fopen(fname, H5F_ACC_RDONLY, H5P_DEFAULT, NULL, NULL, 0)) < 0){
printf("<%s>: %s\n", fname, H5FOPENERROR );
return -1;
}
/*-------------------------------------------------------------------------
* get the list of objects in the file
*-------------------------------------------------------------------------
*/
/* init table */
trav_table_init(&travt);
/* get the list of objects in the file */
if(h5trav_gettable(fid, travt) < 0)
goto out;
/*-------------------------------------------------------------------------
* compare with user supplied list
*-------------------------------------------------------------------------
*/
if(options->verbose)
printf("Opening file <%s>. Searching for objects to modify...\n", fname);
for(i = 0; i < options->op_tbl->nelems; i++) {
char* name=options->op_tbl->objs[i].path;
if(options->verbose)
printf(" <%s>",name);
/* the input object names are present in the file and are valid */
if(h5trav_getindext(name, travt) < 0) {
error_msg(progname, "%s Could not find <%s> in file <%s>. Exiting...\n",
(options->verbose?"\n":""),name,fname);
goto out;
}
if(options->verbose)
printf("...Found\n");
/* check for extra filter conditions */
switch(options->op_tbl->objs[i].filter->filtn) {
/* chunk size must be smaller than pixels per block */
case H5Z_FILTER_SZIP:
{
int j;
int csize = 1;
int ppb = options->op_tbl->objs[i].filter->cd_values[0];
hsize_t dims[H5S_MAX_RANK];
int rank;
hid_t did;
hid_t sid;
if(options->op_tbl->objs[i].chunk.rank > 0) {
rank = options->op_tbl->objs[i].chunk.rank;
for(j = 0; j < rank; j++)
csize *= (int)options->op_tbl->objs[i].chunk.chunk_lengths[j];
}
else {
if((did = H5Dopen2(fid, name, H5P_DEFAULT)) < 0)
goto out;
if((sid = H5Dget_space(did)) < 0)
goto out;
if((rank = H5Sget_simple_extent_ndims(sid)) < 0)
goto out;
HDmemset(dims, 0, sizeof dims);
if(H5Sget_simple_extent_dims(sid, dims, NULL) < 0)
goto out;
for(j = 0; j < rank; j++)
csize *= (int)dims[j];
if(H5Sclose(sid) < 0)
goto out;
if(H5Dclose(did) < 0)
goto out;
}
if (csize < ppb ) {
printf(" <warning: SZIP settins, chunk size is smaller than pixels per block>\n");
goto out;
}
}
break;
}
} /* i */
/*-------------------------------------------------------------------------
* close
*-------------------------------------------------------------------------
*/
H5Fclose(fid);
trav_table_free(travt);
return 0;
out:
H5Fclose(fid);
trav_table_free(travt);
return -1;
}
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