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netcdf-c/nc_test4/tst_h_scalar.c

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/* This is part of the netCDF package. Copyright 2013 University
Corporation for Atmospheric Research/Unidata See COPYRIGHT file for
conditions of use.
This program tests reading HDF5 files that contain scalar attributes and
variables, of both string and numeric datatypes. The netCDF-4 library
should allow access to all of these.
*/
#include <nc_tests.h>
#include <hdf5.h>
#define FILE_NAME "tst_h_scalar.h5"
#define VSTR_ATT1_NAME "vstratt1"
#define VSTR_ATT2_NAME "vstratt2"
#define VSTR_ATT3_NAME "vstratt3"
#define VSTR_ATT4_NAME "vstratt4"
#define VSTR_VAR1_NAME "vstrvar1"
#define VSTR_VAR2_NAME "vstrvar2"
#define FSTR_ATT_NAME "fstratt"
#define FSTR_VAR_NAME "fstrvar"
#define INT_ATT_NAME "intatt"
#define INT_VAR_NAME "intvar"
int
add_attrs(hid_t objid)
{
hid_t scalar_spaceid = -1;
hid_t vlstr_typeid = -1, fixstr_typeid = -1;
char *vlstr;
hid_t attid = -1;
/* Create scalar dataspace */
if ((scalar_spaceid = H5Screate(H5S_SCALAR)) < 0) ERR_GOTO;
/* Create string datatypes */
if ((vlstr_typeid = H5Tcreate(H5T_STRING, (size_t)H5T_VARIABLE)) < 0) ERR_GOTO;
if ((fixstr_typeid = H5Tcreate(H5T_STRING, (size_t)10)) < 0) ERR_GOTO;
/* Create attribute with VL string datatype on object */
if ((attid = H5Acreate2(objid, VSTR_ATT1_NAME, vlstr_typeid, scalar_spaceid, H5P_DEFAULT, H5P_DEFAULT)) < 0) ERR_GOTO;
/* No write, use fill value */
if (H5Aclose(attid) < 0) ERR_GOTO;
/* Create attribute with VL string datatype on object */
if ((attid = H5Acreate2(objid, VSTR_ATT2_NAME, vlstr_typeid, scalar_spaceid, H5P_DEFAULT, H5P_DEFAULT)) < 0) ERR_GOTO;
vlstr = NULL;
if (H5Awrite(attid, vlstr_typeid, &vlstr) < 0) ERR_GOTO;
if (H5Aclose(attid) < 0) ERR_GOTO;
/* Create attribute with VL string datatype on object */
if ((attid = H5Acreate2(objid, VSTR_ATT3_NAME, vlstr_typeid, scalar_spaceid, H5P_DEFAULT, H5P_DEFAULT)) < 0) ERR_GOTO;
vlstr = malloc(10);
*vlstr = '\0';
if (H5Awrite(attid, vlstr_typeid, &vlstr) < 0) ERR_GOTO;
if (H5Aclose(attid) < 0) ERR_GOTO;
/* Create attribute with VL string datatype on object */
if ((attid = H5Acreate2(objid, VSTR_ATT4_NAME, vlstr_typeid, scalar_spaceid, H5P_DEFAULT, H5P_DEFAULT)) < 0) ERR_GOTO;
strcpy(vlstr, "foo");
if (H5Awrite(attid, vlstr_typeid, &vlstr) < 0) ERR_GOTO;
free(vlstr);
if (H5Aclose(attid) < 0) ERR_GOTO;
/* Create attribute with fixed-length string datatype on object */
if ((attid = H5Acreate2(objid, FSTR_ATT_NAME, fixstr_typeid, scalar_spaceid, H5P_DEFAULT, H5P_DEFAULT)) < 0) ERR_GOTO;
if (H5Aclose(attid) < 0) ERR_GOTO;
/* Create attribute with native integer datatype on object */
if ((attid = H5Acreate2(objid, INT_ATT_NAME, H5T_NATIVE_INT, scalar_spaceid, H5P_DEFAULT, H5P_DEFAULT)) < 0) ERR_GOTO;
if (H5Aclose(attid) < 0) ERR_GOTO;
/* Clean up objects created */
if (H5Sclose(scalar_spaceid) < 0) ERR_GOTO;
if (H5Tclose(vlstr_typeid) < 0) ERR_GOTO;
if (H5Tclose(fixstr_typeid) < 0) ERR_GOTO;
return(0);
error:
H5E_BEGIN_TRY {
H5Aclose(attid);
H5Sclose(scalar_spaceid);
H5Tclose(vlstr_typeid);
H5Tclose(fixstr_typeid);
} H5E_END_TRY;
return(-1);
}
int
check_attrs(int ncid, int obj)
{
int attid;
int natts = 0;
size_t len;
nc_type type;
char *vlstr;
char fixstr[10];
int x;
/* Check the object's attributes are OK */
if (nc_inq_varnatts(ncid, obj, &natts )) ERR_GOTO;
if (natts != 6) ERR_GOTO;
if (nc_inq_attid(ncid, obj, VSTR_ATT1_NAME, &attid)) ERR_GOTO;
if (attid != 0) ERR_GOTO;
if (nc_inq_atttype(ncid, obj, VSTR_ATT1_NAME, &type)) ERR_GOTO;
if (type != NC_STRING) ERR_GOTO;
if (nc_inq_attlen(ncid, obj, VSTR_ATT1_NAME, &len)) ERR_GOTO;
if (len != 1) ERR_GOTO;
vlstr = NULL;
if (nc_get_att(ncid, obj, VSTR_ATT1_NAME, &vlstr)) ERR_GOTO;
if (NULL != vlstr) ERR_GOTO;
if (nc_inq_attid(ncid, obj, VSTR_ATT2_NAME, &attid)) ERR_GOTO;
if (attid != 1) ERR_GOTO;
if (nc_inq_atttype(ncid, obj, VSTR_ATT2_NAME, &type)) ERR_GOTO;
if (type != NC_STRING) ERR_GOTO;
if (nc_inq_attlen(ncid, obj, VSTR_ATT2_NAME, &len)) ERR_GOTO;
if (len != 1) ERR_GOTO;
vlstr = NULL;
if (nc_get_att(ncid, obj, VSTR_ATT2_NAME, &vlstr)) ERR_GOTO;
if (NULL != vlstr) ERR_GOTO;
if (nc_inq_attid(ncid, obj, VSTR_ATT3_NAME, &attid)) ERR_GOTO;
if (attid != 2) ERR_GOTO;
if (nc_inq_atttype(ncid, obj, VSTR_ATT3_NAME, &type)) ERR_GOTO;
if (type != NC_STRING) ERR_GOTO;
if (nc_inq_attlen(ncid, obj, VSTR_ATT3_NAME, &len)) ERR_GOTO;
if (len != 1) ERR_GOTO;
vlstr = NULL;
if (nc_get_att(ncid, obj, VSTR_ATT3_NAME, &vlstr)) ERR_GOTO;
if (strcmp(vlstr, "")) ERR_GOTO;
free(vlstr);
if (nc_inq_attid(ncid, obj, VSTR_ATT4_NAME, &attid)) ERR_GOTO;
if (attid != 3) ERR_GOTO;
if (nc_inq_atttype(ncid, obj, VSTR_ATT4_NAME, &type)) ERR_GOTO;
if (type != NC_STRING) ERR_GOTO;
if (nc_inq_attlen(ncid, obj, VSTR_ATT4_NAME, &len)) ERR_GOTO;
if (len != 1) ERR_GOTO;
vlstr = NULL;
if (nc_get_att(ncid, obj, VSTR_ATT4_NAME, &vlstr)) ERR_GOTO;
if (strcmp(vlstr, "foo")) ERR_GOTO;
free(vlstr);
if (nc_inq_attid(ncid, obj, FSTR_ATT_NAME, &attid)) ERR_GOTO;
if (attid != 4) ERR_GOTO;
if (nc_inq_atttype(ncid, obj, FSTR_ATT_NAME, &type)) ERR_GOTO;
if (type != NC_CHAR) ERR_GOTO;
if (nc_inq_attlen(ncid, obj, FSTR_ATT_NAME, &len)) ERR_GOTO;
if (len != 10) ERR_GOTO;
memset(fixstr, 1, sizeof(fixstr));
if (nc_get_att(ncid, obj, FSTR_ATT_NAME, fixstr)) ERR_GOTO;
if ('\0' != fixstr[0]) ERR_GOTO;
if (nc_inq_attid(ncid, obj, INT_ATT_NAME, &attid)) ERR_GOTO;
if (attid != 5) ERR_GOTO;
if (nc_inq_atttype(ncid, obj, INT_ATT_NAME, &type)) ERR_GOTO;
if (type != NC_INT) ERR_GOTO;
if (nc_inq_attlen(ncid, obj, INT_ATT_NAME, &len)) ERR_GOTO;
if (len != 1) ERR_GOTO;
x = -1;
if (nc_get_att(ncid, obj, INT_ATT_NAME, &x)) ERR_GOTO;
if (0 != x) ERR_GOTO;
return(0);
error:
return(-1);
}
int
main()
{
printf("\n*** Creating file with datasets & attributes that have scalar dataspaces...");
{
hid_t fileid;
hid_t fcplid;
hid_t dsetid;
hid_t dcplid;
hid_t scalar_spaceid;
hid_t vlstr_typeid, fixstr_typeid;
hid_t attid;
/* Create scalar dataspace */
if ((scalar_spaceid = H5Screate(H5S_SCALAR)) < 0) ERR;
/* Set creation ordering for file, so we can revise its contents later */
if ((fcplid = H5Pcreate(H5P_FILE_CREATE)) < 0) ERR;
if (H5Pset_link_creation_order(fcplid, H5P_CRT_ORDER_TRACKED) < 0) ERR;
if (H5Pset_attr_creation_order(fcplid, H5P_CRT_ORDER_TRACKED) < 0) ERR;
/* Create new file, using default properties */
if ((fileid = H5Fcreate(FILE_NAME, H5F_ACC_TRUNC, fcplid, H5P_DEFAULT)) < 0) ERR;
/* Close file creation property list */
if (H5Pclose(fcplid) < 0) ERR;
/* Create variable-length string datatype */
if ((vlstr_typeid = H5Tcreate(H5T_STRING, (size_t)H5T_VARIABLE)) < 0) ERR;
/* Create fixed-length string datatype */
if ((fixstr_typeid = H5Tcreate(H5T_STRING, (size_t)10)) < 0) ERR;
/* Set creation ordering for dataset, so we can revise its contents later */
if ((dcplid = H5Pcreate(H5P_DATASET_CREATE)) < 0) ERR;
if (H5Pset_attr_creation_order(dcplid, H5P_CRT_ORDER_TRACKED) < 0) ERR;
/* Create scalar dataset with VL string datatype */
if ((dsetid = H5Dcreate2(fileid, VSTR_VAR1_NAME, vlstr_typeid, scalar_spaceid, H5P_DEFAULT, dcplid, H5P_DEFAULT)) < 0) ERR;
/* Add attributes to dataset */
if (add_attrs(dsetid) < 0) ERR;
/* Close VL string dataset */
if (H5Dclose(dsetid) < 0) ERR;
/* Create scalar dataset with fixed-length string datatype */
if ((dsetid = H5Dcreate2(fileid, FSTR_VAR_NAME, fixstr_typeid, scalar_spaceid, H5P_DEFAULT, dcplid, H5P_DEFAULT)) < 0) ERR;
/* Add attributes to dataset */
if (add_attrs(dsetid) < 0) ERR;
/* Close fixed-length string dataset */
if (H5Dclose(dsetid) < 0) ERR;
/* Create scalar dataset with native integer datatype */
if ((dsetid = H5Dcreate2(fileid, INT_VAR_NAME, H5T_NATIVE_INT, scalar_spaceid, H5P_DEFAULT, dcplid, H5P_DEFAULT)) < 0) ERR;
/* Add attributes to dataset */
if (add_attrs(dsetid) < 0) ERR;
/* Close native integer dataset */
if (H5Dclose(dsetid) < 0) ERR;
/* Add attributes to root group */
if (add_attrs(fileid) < 0) ERR;
/* Close dataset creation property list */
if (H5Pclose(dcplid) < 0) ERR;
/* Close string datatypes */
if (H5Tclose(vlstr_typeid) < 0) ERR;
if (H5Tclose(fixstr_typeid) < 0) ERR;
/* Close rest */
if (H5Sclose(scalar_spaceid) < 0) ERR;
if (H5Fclose(fileid) < 0) ERR;
}
SUMMARIZE_ERR;
printf("*** Checking accessing file through netCDF-4 API...");
{
int ncid, varid;
size_t len;
nc_type type;
int ndims;
char *vlstr;
int x;
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
/* Check the global attributes are OK */
if (check_attrs(ncid, NC_GLOBAL) < 0) ERR;
/* Verify that the VL string dataset is present and OK */
if (nc_inq_varid(ncid, VSTR_VAR1_NAME, &varid)) ERR;
if (varid != 0) ERR;
if (nc_inq_vartype(ncid, varid, &type)) ERR;
if (type != NC_STRING) ERR;
if (nc_inq_varndims(ncid, varid, &ndims)) ERR;
if (ndims != 0) ERR;
vlstr = NULL;
if (nc_get_var(ncid, varid, &vlstr)) ERR;
if (NULL != vlstr) ERR;
/* Check the variable's attributes are OK */
if (check_attrs(ncid, varid) < 0) ERR;
/* Verify that the fixed-length string dataset is present and OK */
if (nc_inq_varid(ncid, FSTR_VAR_NAME, &varid)) ERR;
if (varid != 1) ERR;
if (nc_inq_vartype(ncid, varid, &type)) ERR;
if (type != NC_STRING) ERR;
if (nc_inq_varndims(ncid, varid, &ndims)) ERR;
if (ndims != 0) ERR;
vlstr = NULL;
if (nc_get_var(ncid, varid, &vlstr)) ERR;
if ('\0' != *vlstr) ERR;
free(vlstr);
/* Check the variable's attributes are OK */
if (check_attrs(ncid, varid) < 0) ERR;
/* Verify that the integer dataset is present and OK */
if (nc_inq_varid(ncid, INT_VAR_NAME, &varid)) ERR;
if (varid != 2) ERR;
if (nc_inq_vartype(ncid, varid, &type)) ERR;
if (type != NC_INT) ERR;
if (nc_inq_varndims(ncid, varid, &ndims)) ERR;
if (ndims != 0) ERR;
x = -1;
if (nc_get_var(ncid, varid, &x)) ERR;
if (0 != x) ERR;
/* Check the variable's attributes are OK */
if (check_attrs(ncid, varid) < 0) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("*** Checking revising file through netCDF-4 API...");
{
int ncid, varid;
char *vlstr;
if (nc_open(FILE_NAME, NC_WRITE, &ncid)) ERR;
/* Write to the VL string variable */
if (nc_inq_varid(ncid, VSTR_VAR1_NAME, &varid)) ERR;
vlstr = NULL;
if (nc_put_var(ncid, varid, &vlstr)) ERR;
vlstr = malloc(10);
*vlstr = '\0';
if (nc_put_var(ncid, varid, &vlstr)) ERR;
strcpy(vlstr, "foo");
if (nc_put_var(ncid, varid, &vlstr)) ERR;
free(vlstr);
/* Write to a VL string attribute */
vlstr = NULL;
if (nc_put_att(ncid, varid, VSTR_ATT1_NAME, NC_STRING, 1, &vlstr)) ERR;
vlstr = malloc(10);
*vlstr = '\0';
if (nc_put_att(ncid, varid, VSTR_ATT1_NAME, NC_STRING, 1, &vlstr)) ERR;
strcpy(vlstr, "foo");
if (nc_put_att(ncid, varid, VSTR_ATT1_NAME, NC_STRING, 1, &vlstr)) ERR;
free(vlstr);
/* Define a new VL string variable */
if (nc_def_var(ncid, VSTR_VAR2_NAME , NC_STRING, 0, NULL, &varid)) ERR;
/* Write to the variable's fill-value */
vlstr = NULL;
if (nc_put_att(ncid, varid, _FillValue, NC_STRING, 1, &vlstr)) ERR;
vlstr = malloc(10);
*vlstr = '\0';
if (nc_put_att(ncid, varid, _FillValue, NC_STRING, 1, &vlstr)) ERR;
strcpy(vlstr, "foo");
if (nc_put_att(ncid, varid, _FillValue, NC_STRING, 1, &vlstr)) ERR;
free(vlstr);
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
FINAL_RESULTS;
}
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