what 's the format for printing haddr_t ?
printf("visiting sb1.objno = %lu sb2.objno = %lu\n",
sb1.objno, sb2.objno);
At 10:58 AM 7/12/2005, you wrote:
>Pedro,
> Can you look at Ed's program and see if you can help him?
>
> Quincey
>
>[ Charset ISO-8859-15 unsupported, converting... ]
>> Howdy all!
>>
>> I've isolated the code into it's own program, and you can see the
>> problem I'm having by compiling and running the program appended below
>> (tst_h_dimscales2.c) including its header file, tests.h, also appended
>> below.
>>
>> This program creates a very simple HDF5 file (tst_h_dimscales2.h5),
>> with two 1D datasets. One dataset is marked as a dimension scale, the
>> other attaches it as it's dimscale. Then the file is closed. The
>> h5dump of the file at this point is included below. Everything looks
>> fine to me, including all the names.
>>
>> The file is then reopened and I iterate through the objects. When I
>> find the dimscale I check the name, and it's fine. When I encounter
>> the other dataset, "var1", I check that it has one scale, and then
>> call iterate_scales to execute the function alien_visitor on that
>> dataset/dimscale combination.
>>
>> The function, alien_visitor, gets the associated names of it's did and
>> dsid parameters. The did parameter yields a name, as expected:
>> "/var1". But the dsid parameter, which supposedly points to the
>> dimscale dataset, returns a name of garbage characters.
>>
>> How do I know that dsid is really pointing to the dimscale dataset,
>> named "dimscale" in this example?
>>
>> Is this a H5DS bug, or am I doing something horribly, tragically, but
>> hopefully not inexplicably wrong?
>>
>> Thanks,
>>
>> Ed
>>
>> Here's the output:
>>
>> ./tst_h_dimscales2
>> *** Creating a file with one var with one dimension scale...ok.
>> *** Checking that one var, one dimscale file can be read...
>> Encountered: HDF5 object obj_class 2 obj_name dimscale
>> Encountered: HDF5 object obj_class 2 obj_name var1
>> unexpected result, tst_h_dimscales2.c, line: 34
>> visiting did 0x6000003 dim 0 dsid 0x6000004 name of did /var1
>> :???z????????
>> 1 failures
>>
>> h5dump of tst_h_dimscales2.h5:
>> HDF5 "tst_h_dimscales2.h5" {
>> GROUP "/" {
>> DATASET "dimscale" {
>> DATATYPE H5T_STD_I32LE
>> DATASPACE SIMPLE { ( 3 ) / ( H5S_UNLIMITED ) }
>> DATA {
>> (0): 0, 0, 0
>> }
>> ATTRIBUTE "CLASS" {
>> DATATYPE H5T_STRING {
>> STRSIZE 16;
>> STRPAD H5T_STR_NULLTERM;
>> CSET H5T_CSET_ASCII;
>> CTYPE H5T_C_S1;
>> }
>> DATASPACE SCALAR
>> DATA {
>> (0): "DIMENSION_SCALE"
>> }
>> }
>> ATTRIBUTE "NAME" {
>> DATATYPE H5T_STRING {
>> STRSIZE 24;
>> STRPAD H5T_STR_NULLTERM;
>> CSET H5T_CSET_ASCII;
>> CTYPE H5T_C_S1;
>> }
>> DATASPACE SCALAR
>> DATA {
>> (0): "dimscale_name_attribute"
>> }
>> }
>> ATTRIBUTE "REFERENCE_LIST" {
>> DATATYPE H5T_COMPOUND {
>> H5T_REFERENCE "dataset";
>> H5T_STD_I32LE "dimension";
>> }
>> DATASPACE SIMPLE { ( 1 ) / ( 1 ) }
>> DATA {
>> (0): {
>> DATASET 1576 /var1 ,
>> 0
>> }
>> }
>> }
>> }
>> DATASET "var1" {
>> DATATYPE H5T_STD_I32LE
>> DATASPACE SIMPLE { ( 3 ) / ( H5S_UNLIMITED ) }
>> DATA {
>> (0): 0, 0, 0
>> }
>> ATTRIBUTE "DIMENSION_LIST" {
>> DATATYPE H5T_VLEN { H5T_REFERENCE}
>> DATASPACE SIMPLE { ( 1 ) / ( 1 ) }
>> DATA {
>> (0): (DATASET 976 /dimscale )
>> }
>> }
>> ATTRIBUTE "DIMENSION_LABELS" {
>> DATATYPE H5T_STRING {
>> STRSIZE H5T_VARIABLE;
>> STRPAD H5T_STR_NULLTERM;
>> CSET H5T_CSET_ASCII;
>> CTYPE H5T_C_S1;
>> }
>> DATASPACE SIMPLE { ( 1 ) / ( 1 ) }
>> DATA {
>> (0): "dimscale_label"
>> }
>> }
>> }
>> }
>> }
>>
>>
>> tests.h:
>>
>> /* This is part of the netCDF package.
>> Copyright 2005 University Corporation for Atmospheric Research/Unidata
>> See COPYRIGHT file for conditions of use.
>>
>> Common includes, defines, etc., for test code in the libsrc4
>> directory.
>>
>> $Id: tests.h,v 1.6 2005/06/06 20:36:22 ed Exp $
>> */
>> #ifndef _NC4_TESTS_
>> #define _NC4_TESTS_
>>
>> #include <config.h>
>> #include <assert.h>
>> #include <stdio.h>
>> #include <string.h>
>> #include "error.h"
>>
>> int total_err = 0, err = 0;
>>
>> /* This is handy for print statements. */
>> char *format_name[] = {"", "classic", "64-bit offset", "netCDF-4", "netCDF-4
>> strict NC3"};
>>
>> #define ERR do { \
>> fflush(stdout); /* Make sure our stdout is synced with stderr. */ \
>> err++; \
>> fprintf(stderr, "unexpected result, %s, line: %d\n", __FILE__, __LINE__); \
>> } while (0)
>>
>> #define SUMMARIZE_ERR do { \
>> if (err) \
>> { \
>> printf("%d failures\n", err); \
>> total_err += err; \
>> err = 0; \
>> } \
>> else \
>> printf("ok.\n"); \
>> } while (0)
>>
>>
>> #endif /* _NC4_TESTS_ */
>>
>> tst_h_dimscales2.c:
>>
>> /* This is part of the netCDF package.
>> Copyright 2005 University Corporation for Atmospheric Research/Unidata
>> See COPYRIGHT file for conditions of use.
>>
>> Test HDF5 file code. These are not intended to be exhaustive tests,
>> but they use HDF5 the same way that netCDF-4 does, so if these
>> tests don't work, than netCDF-4 won't work either.
>>
>> $Id: tst_h_dimscales.c,v 1.5 2005/07/01 09:33:05 ed Exp $
>> */
>> #include "tests.h"
>> #include "H5DS.h"
>>
>> #define FILE_NAME "tst_h_dimscales2.h5"
>> #define DIMSCALE_NAME "dimscale"
>> #define VAR1_NAME "var1"
>> #define NDIMS 1
>> #define DIM1_LEN 3
>> #define NAME_ATTRIBUTE "dimscale_name_attribute"
>> #define DIMSCALE_LABEL "dimscale_label"
>>
>> herr_t alien_visitor(hid_t did, unsigned dim, hid_t dsid,
>> void *visitor_data)
>> {
>> char name1[NC_MAX_NAME], name2[NC_MAX_NAME];
>>
>> /* This should get "/var1", the name of the dataset that the scale
>> * is attached to. */
>> if (H5Iget_name(did, name1, NC_MAX_NAME) < 0) ERR;
>> if (strcmp(&name1[1], VAR1_NAME)) ERR;
>>
>> /* This should get "/dimscale" but it doesn't seem to be! */
>> if (H5Iget_name(dsid, name2, NC_MAX_NAME) < 0) ERR;
>> if (strcmp(&name2[1], DIMSCALE_NAME)) ERR;
>>
>> printf("visiting did 0x%x dim %d dsid 0x%x name of did %s \n",
>> did, dim, dsid, name1);
>> printf("name of dsid: %s\n", name2);
>> return 0;
>> }
>>
>> int
>> main()
>> {
>> printf("*** Creating a file with one var with one dimension scale...");
>>
>> {
>> hid_t fileid, spaceid, datasetid, dimscaleid, cparmsid;
>> hsize_t dims[NDIMS] = {DIM1_LEN}, maxdims[NDIMS] = {H5S_UNLIMITED};
>>
>> /* Create file. */
>> if ((fileid = H5Fcreate(FILE_NAME, H5F_ACC_TRUNC, H5P_DEFAULT,
>> H5P_DEFAULT)) < 0) ERR;
>>
>> /* Create the space that will be used both for the dimscale and
>> * the 1D dataset that will attach it. */
>> if ((spaceid = H5Screate_simple(NDIMS, dims, maxdims)) < 0) ERR;
>>
>> /* Modify dataset creation properties, i.e. enable chunking. */
>> dims[0] = 1;
>> if ((cparmsid = H5Pcreate(H5P_DATASET_CREATE)) < 0) ERR;
>> if (H5Pset_chunk(cparmsid, NDIMS, dims) < 0) ERR;
>>
>> /* Create our dimension scale, as an unlimited dataset. */
>> if ((dimscaleid = H5Dcreate(fileid, DIMSCALE_NAME, H5T_NATIVE_INT,
>> spaceid, cparmsid)) < 0) ERR;
>> if (H5DSset_scale(dimscaleid, NAME_ATTRIBUTE) < 0) ERR;
>>
>> /* Create a variable which uses it. */
>> if ((datasetid = H5Dcreate(fileid, VAR1_NAME, H5T_NATIVE_INT,
>> spaceid, cparmsid)) < 0) ERR;
>> if (H5DSattach_scale(datasetid, dimscaleid, 0) < 0) ERR;
>> if (H5DSset_label(datasetid, 0, DIMSCALE_LABEL) < 0) ERR;
>>
>> /* Fold up our tents. */
>> if (H5Dclose(dimscaleid) < 0 ||
>> H5Dclose(datasetid) < 0 ||
>> H5Sclose(spaceid) < 0 ||
>> H5Fclose(fileid) < 0) ERR;
>> }
>>
>> SUMMARIZE_ERR;
>> printf("*** Checking that one var, one dimscale file can be read...");
>>
>> {
>> hid_t fileid, spaceid = 0, datasetid = 0;
>> hsize_t num_obj, i;
>> int obj_class;
>> char obj_name[NC_MAX_NAME + 1];
>> char dimscale_name[NC_MAX_NAME+1];
>> htri_t is_scale;
>> char label[NC_MAX_NAME+1];
>> int visitor_data = 0;
>> int num_scales;
>> hsize_t dims[1], maxdims[1];
>>
>> /* Open the file. */
>> if ((fileid = H5Fopen(FILE_NAME, H5F_ACC_RDWR, H5P_DEFAULT)) < 0) ERR;
>>
>> /* Loop through objects in the root group. */
>> if (H5Gget_num_objs(fileid, &num_obj) < 0) ERR;
>> for (i=0; i<num_obj; i++)
>> {
>> /* Get the type (i.e. group, dataset, etc.), and the name of
>> * the object. */
>> if ((obj_class = H5Gget_objtype_by_idx(fileid, i)) < 0) ERR;
>> if (H5Gget_objname_by_idx(fileid, i, obj_name, NC_MAX_NAME) < 0) ERR;
>>
>> printf("\nEncountered: HDF5 object obj_class %d obj_name %s\n",
>> obj_class, obj_name);
>>
>> /* Deal with object based on its obj_class. */
>> switch(obj_class)
>> {
>> case H5G_GROUP:
>> break;
>> case H5G_DATASET:
>> /* Open the dataset. */
>> if ((datasetid = H5Dopen(fileid, obj_name)) < 0) ERR;
>>
>> /* This should be an unlimited dataset. */
>> if ((spaceid = H5Dget_space(datasetid)) < 0) ERR;
>> if (H5Sget_simple_extent_dims(spaceid, dims, maxdims) < 0) ERR;
>> if (maxdims[0] != H5S_UNLIMITED) ERR;
>>
>> /* Is this a dimscale? */
>> if ((is_scale = H5DSis_scale(datasetid)) < 0) ERR;
>> if (is_scale && strcmp(obj_name, DIMSCALE_NAME)) ERR;
>> if (is_scale)
>> {
>> /* A dimscale comes with a NAME attribute, in
>> * addition to it's real name. */
>> if (H5DSget_scale_name(datasetid, dimscale_name,
>> NC_MAX_NAME) < 0) ERR;
>> if (strcmp(dimscale_name, NAME_ATTRIBUTE)) ERR;
>> }
>> else
>> {
>> /* Here's how to get the number of scales attached
>> * to the dataset's dimension 0. */
>> if ((num_scales = H5DSget_num_scales(datasetid, 0)) < 0) ERR;
>> if (num_scales != 1) ERR;
>>
>> /* Go through all dimscales for this var and learn about
>> them. */
>> if (H5DSiterate_scales(datasetid, 0, NULL, alien_visitor,
>> &visitor_data) < 0) ERR;
>>
>> /* There's also a label for dimension 0. */
>> if (H5DSget_label(datasetid, 0, label, NC_MAX_NAME) < 0) ERR;
>>
>> /*printf("found non-scale dataset %s, label %s\n", obj_name,
>> label);*/
>> }
>> if (H5Dclose(datasetid) < 0) ERR;
>> break;
>> case H5G_TYPE:
>> break;
>> case H5G_LINK:
>> break;
>> default:
>> printf("Unknown object class %d in rec_read_metadata!",
>> obj_class);
>> }
>> }
>>
>> /* Close up the shop. */
>> if (H5Sclose(spaceid) < 0 ||
>> H5Fclose(fileid) < 0) ERR;
>> }
>>
>> SUMMARIZE_ERR;
>>
>> /* Print out our number of errors, if any, and exit badly. */
>> if (total_err)
>> {
>> printf("%d errors detected! Sorry!\n", total_err);
>> return 2;
>> }
>>
>> printf("*** Tests successful!\n");
>> return 0;
>> }
>>
>>
>>
>> --
>> Ed Hartnett -- ed@xxxxxxxxxxxxxxxx
>>
>>
</Pedro Vicente Nunes>
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Tel. 1-217-265 0311
