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224 lines
7.1 KiB
C
224 lines
7.1 KiB
C
/* This is part of the netCDF package. Copyright 2018 University
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Corporation for Atmospheric Research/Unidata See COPYRIGHT file for
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conditions of use.
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This program sets up HDF5 files that contain scalar attributes and
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variables, of both string and numeric datatypes. ncdump should handle
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all of these.
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Russ Rew
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*/
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#include <nc_tests.h>
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#include "err_macros.h"
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#include <hdf5.h>
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#define FILE_NAME "tst_h_scalar.nc"
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#define VSTR_ATT1_NAME "vstratt1"
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#define VSTR_ATT2_NAME "vstratt2"
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#define VSTR_ATT3_NAME "vstratt3"
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#define VSTR_ATT4_NAME "vstratt4"
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#define VSTR_VAR1_NAME "vstrvar1"
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#define VSTR_VAR2_NAME "vstrvar2"
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#define VSTR_VAR3_NAME "vstrvar3"
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#define VSTR_VAR4_NAME "vstrvar4"
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#define FSTR_ATT_NAME "fstratt"
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#define FSTR_VAR_NAME "fstrvar"
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#define INT_ATT_NAME "intatt"
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#define INT_VAR_NAME "intvar"
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int
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add_attrs(hid_t objid)
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{
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hid_t scalar_spaceid = -1;
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hid_t vlstr_typeid = -1, fixstr_typeid = -1;
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char *vlstr;
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hid_t attid = -1;
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/* Create scalar dataspace */
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if ((scalar_spaceid = H5Screate(H5S_SCALAR)) < 0) ERR_GOTO;
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/* Create string datatypes */
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if ((vlstr_typeid = H5Tcreate(H5T_STRING, (size_t)H5T_VARIABLE)) < 0) ERR_GOTO;
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if ((fixstr_typeid = H5Tcreate(H5T_STRING, (size_t)10)) < 0) ERR_GOTO;
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/* Create attribute with VL string datatype on object */
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if ((attid = H5Acreate2(objid, VSTR_ATT1_NAME, vlstr_typeid, scalar_spaceid, H5P_DEFAULT, H5P_DEFAULT)) < 0) ERR_GOTO;
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/* No write, use fill value */
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if (H5Aclose(attid) < 0) ERR_GOTO;
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/* Create attribute with VL string datatype on object */
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if ((attid = H5Acreate2(objid, VSTR_ATT2_NAME, vlstr_typeid, scalar_spaceid, H5P_DEFAULT, H5P_DEFAULT)) < 0) ERR_GOTO;
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vlstr = NULL;
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if (H5Awrite(attid, vlstr_typeid, &vlstr) < 0) ERR_GOTO;
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if (H5Aclose(attid) < 0) ERR_GOTO;
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/* Create attribute with VL string datatype on object */
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if ((attid = H5Acreate2(objid, VSTR_ATT3_NAME, vlstr_typeid, scalar_spaceid, H5P_DEFAULT, H5P_DEFAULT)) < 0) ERR_GOTO;
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vlstr = malloc(10);
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*vlstr = '\0';
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if (H5Awrite(attid, vlstr_typeid, &vlstr) < 0) ERR_GOTO;
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if (H5Aclose(attid) < 0) ERR_GOTO;
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/* Create attribute with VL string datatype on object */
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if ((attid = H5Acreate2(objid, VSTR_ATT4_NAME, vlstr_typeid, scalar_spaceid, H5P_DEFAULT, H5P_DEFAULT)) < 0) ERR_GOTO;
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strcpy(vlstr, "foo");
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if (H5Awrite(attid, vlstr_typeid, &vlstr) < 0) ERR_GOTO;
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free(vlstr);
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if (H5Aclose(attid) < 0) ERR_GOTO;
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/* Create attribute with fixed-length string datatype on object */
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if ((attid = H5Acreate2(objid, FSTR_ATT_NAME, fixstr_typeid, scalar_spaceid, H5P_DEFAULT, H5P_DEFAULT)) < 0) ERR_GOTO;
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if (H5Aclose(attid) < 0) ERR_GOTO;
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/* Create attribute with native integer datatype on object */
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if ((attid = H5Acreate2(objid, INT_ATT_NAME, H5T_NATIVE_INT, scalar_spaceid, H5P_DEFAULT, H5P_DEFAULT)) < 0) ERR_GOTO;
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if (H5Aclose(attid) < 0) ERR_GOTO;
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/* Clean up objects created */
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if (H5Sclose(scalar_spaceid) < 0) ERR_GOTO;
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if (H5Tclose(vlstr_typeid) < 0) ERR_GOTO;
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if (H5Tclose(fixstr_typeid) < 0) ERR_GOTO;
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return(0);
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error:
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H5E_BEGIN_TRY {
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H5Aclose(attid);
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H5Sclose(scalar_spaceid);
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H5Tclose(vlstr_typeid);
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H5Tclose(fixstr_typeid);
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} H5E_END_TRY;
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return(-1);
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}
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int
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main()
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{
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printf("\n*** Create file with datasets & attributes that have scalar dataspaces...");
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{
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hid_t fileid;
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hid_t fcplid;
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hid_t dsetid;
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hid_t dcplid;
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hid_t scalar_spaceid;
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hid_t vlstr_typeid, fixstr_typeid;
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/* Create scalar dataspace */
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if ((scalar_spaceid = H5Screate(H5S_SCALAR)) < 0) ERR;
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/* Set creation ordering for file, so we can revise its contents later */
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if ((fcplid = H5Pcreate(H5P_FILE_CREATE)) < 0) ERR;
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if (H5Pset_link_creation_order(fcplid, H5P_CRT_ORDER_TRACKED) < 0) ERR;
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if (H5Pset_attr_creation_order(fcplid, H5P_CRT_ORDER_TRACKED) < 0) ERR;
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/* Create new file, using default properties */
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if ((fileid = H5Fcreate(FILE_NAME, H5F_ACC_TRUNC, fcplid, H5P_DEFAULT)) < 0) ERR;
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/* Close file creation property list */
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if (H5Pclose(fcplid) < 0) ERR;
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/* Create variable-length string datatype */
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if ((vlstr_typeid = H5Tcreate(H5T_STRING, (size_t)H5T_VARIABLE)) < 0) ERR;
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/* Create fixed-length string datatype */
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if ((fixstr_typeid = H5Tcreate(H5T_STRING, (size_t)10)) < 0) ERR;
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/* Set creation ordering for dataset, so we can revise its contents later */
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if ((dcplid = H5Pcreate(H5P_DATASET_CREATE)) < 0) ERR;
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if (H5Pset_attr_creation_order(dcplid, H5P_CRT_ORDER_TRACKED) < 0) ERR;
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/* Create scalar dataset with VL string datatype */
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if ((dsetid = H5Dcreate2(fileid, VSTR_VAR1_NAME, vlstr_typeid, scalar_spaceid, H5P_DEFAULT, dcplid, H5P_DEFAULT)) < 0) ERR;
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/* Add attributes to dataset */
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if (add_attrs(dsetid) < 0) ERR;
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/* Close VL string dataset */
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if (H5Dclose(dsetid) < 0) ERR;
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/* Create scalar dataset with fixed-length string datatype */
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if ((dsetid = H5Dcreate2(fileid, FSTR_VAR_NAME, fixstr_typeid, scalar_spaceid, H5P_DEFAULT, dcplid, H5P_DEFAULT)) < 0) ERR;
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/* Add attributes to dataset */
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if (add_attrs(dsetid) < 0) ERR;
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/* Close fixed-length string dataset */
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if (H5Dclose(dsetid) < 0) ERR;
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/* Create scalar dataset with native integer datatype */
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if ((dsetid = H5Dcreate2(fileid, INT_VAR_NAME, H5T_NATIVE_INT, scalar_spaceid, H5P_DEFAULT, dcplid, H5P_DEFAULT)) < 0) ERR;
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/* Add attributes to dataset */
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if (add_attrs(dsetid) < 0) ERR;
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/* Close native integer dataset */
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if (H5Dclose(dsetid) < 0) ERR;
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/* Add attributes to root group */
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if (add_attrs(fileid) < 0) ERR;
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/* Close dataset creation property list */
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if (H5Pclose(dcplid) < 0) ERR;
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/* Close string datatypes */
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if (H5Tclose(vlstr_typeid) < 0) ERR;
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if (H5Tclose(fixstr_typeid) < 0) ERR;
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/* Close rest */
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if (H5Sclose(scalar_spaceid) < 0) ERR;
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if (H5Fclose(fileid) < 0) ERR;
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}
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SUMMARIZE_ERR;
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printf("*** Revise file through netCDF-4 API...");
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{
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int ncid, varid;
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char *vlstr;
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if (nc_open(FILE_NAME, NC_WRITE, &ncid)) ERR;
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/* Define new VL string variable */
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if (nc_def_var(ncid, VSTR_VAR2_NAME , NC_STRING, 0, NULL, &varid)) ERR;
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/* Write to the variable */
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vlstr = NULL;
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if (nc_put_var(ncid, varid, &vlstr)) ERR;
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/* Define new VL string variable */
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if (nc_def_var(ncid, VSTR_VAR3_NAME , NC_STRING, 0, NULL, &varid)) ERR;
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/* Write to the variable */
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vlstr = malloc(10);
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*vlstr = '\0';
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if (nc_put_var(ncid, varid, &vlstr)) ERR;
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/* Define new VL string variable */
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if (nc_def_var(ncid, VSTR_VAR4_NAME , NC_STRING, 0, NULL, &varid)) ERR;
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/* Write to the variable */
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strcpy(vlstr, "foo");
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if (nc_put_var(ncid, varid, &vlstr)) ERR;
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free(vlstr);
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if (nc_close(ncid)) ERR;
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}
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SUMMARIZE_ERR;
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FINAL_RESULTS;
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}
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