From ab2f0d00f33a6b08ec152ec47fc14e2bfab098b8 Mon Sep 17 00:00:00 2001
From: Peter Cao <xcao@hdfgroup.org>
Date: Wed, 30 Jan 2013 14:37:33 -0500
Subject: [svn-r23203] Add test program to generate test file for checking
 performance.

---
 tools/misc/h5perf_gentest.c | 528 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 528 insertions(+)
 create mode 100755 tools/misc/h5perf_gentest.c

diff --git a/tools/misc/h5perf_gentest.c b/tools/misc/h5perf_gentest.c
new file mode 100755
index 0000000..332e6e8
--- /dev/null
+++ b/tools/misc/h5perf_gentest.c
@@ -0,0 +1,528 @@
+/*****************************************************************************
+  This test generates attributes, groups, and datasets of many types. It 
+  creates a large number of attributes, groups, and datasets by specifying 
+  -a, -g, -d options respectively. Using "-h" option to see details.
+
+  Programmer:  Peter Cao <xcao@hdfgroup.org>, Jan. 2013
+ ****************************************************************************/
+
+#include "hdf5.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+#define FNAME       "test_perf.h5"
+#define NGROUPS     20
+#define NDSETS      20
+#define NATTRS      20
+#define NROWS       40
+#define NTYPES      9
+#define MAXVLEN     10
+#define FIXED_LEN   8
+
+typedef enum { SOLID=0, LIQUID, GAS, PLASMA } phase_t;                                  
+
+typedef struct {
+    int                 i;
+    unsigned long long  l;
+    float               f;
+    double              d;
+    char                s[FIXED_LEN];
+    phase_t             e;
+    float               f_array[FIXED_LEN];
+    hvl_t               i_vlen;
+    char                *s_vlen;
+} test_comp_t;    
+
+typedef struct {
+    int     zipcode;
+    char    *city;
+} zipcode_t;                               
+
+void add_attrs(hid_t oid, int idx);
+void add_attr(hid_t oid, const char *name, hid_t tid, hid_t sid, void *buf) ;
+
+int main (int argc, char *argv[])
+{
+    char fname[32];
+    int i, ngrps=NGROUPS, ndsets=NDSETS, nattrs=NATTRS, nrows=NROWS, 
+	    chunk=NROWS/10+1, vlen=MAXVLEN, l=0, z=0;
+
+    memset(fname, 0, 32);
+    for (i=1; i<argc; i++) {
+        if (strcmp(argv[i], "-f")==0)
+            strcpy(fname, argv[i+1]);
+        else if (strcmp(argv[i], "-g")==0)
+            ngrps = atoi(argv[i+1]);
+        else if (strcmp(argv[i], "-d")==0)
+            ndsets = atoi(argv[i+1]);
+        else if (strcmp(argv[i], "-a")==0)
+            nattrs = atoi(argv[i+1]);
+        else if (strcmp(argv[i], "-r")==0)
+            nrows = atoi(argv[i+1]);
+        else if (strcmp(argv[i], "-c")==0)
+            chunk = atoi(argv[i+1]);
+        else if (strcmp(argv[i], "-v")==0)
+            vlen = atoi(argv[i+1]);
+        else if (strcmp(argv[i], "-l")==0)
+            l = 1;
+        else if (strcmp(argv[i], "-z")==0)
+            z = 1; 
+        else if (strcmp(argv[i], "-h")==0) {
+            printf("\nOPTONS:\n");
+            printf("\t-f F:\tfile_name (default: %s).\n", FNAME);
+            printf("\t-g N:\tnumber of top level groups (default: %d).\n", NGROUPS);
+            printf("\t-d N:\tnumber of datasets (default: %d).\n", NDSETS);
+            printf("\t-a N:\tnumber of attributes (default: %d).\n", NATTRS);
+            printf("\t-r N:\tnumber of rows in a dataset (default: %d).\n", NROWS);
+            printf("\t-c N:\tchunk size (default: %d).\n", (NROWS/10+1));
+            printf("\t-v N:\tmax vlen size (default: %d).\n", MAXVLEN);
+            printf("\t-l:\tuse latest format (default: no).\n");
+            printf("\t-z:\tuse gzip comnpression (default: no).\n");
+            printf("Example:\n");
+            printf("\t./a.out -f test.h5 -g 10000 -d 5000 -a 500 -r 400 -c 20 -v 40 -l -z\n\n");
+            exit(0);
+        }
+    }
+	
+    if (ngrps<NGROUPS) ngrps=NGROUPS;
+	if (ndsets<NDSETS) ndsets=NDSETS;
+	if (nattrs<NATTRS) nattrs=NATTRS;
+	if (nrows<NROWS) nrows=NROWS;
+    if (chunk>nrows) chunk=nrows/4;
+    if (chunk<1) chunk = 1;
+	if (vlen<1) vlen = MAXVLEN;
+		
+    if (strlen(fname)<=0)
+        sprintf(fname, FNAME);
+
+	create_perf_test_file(fname, ngrps, ndsets, nattrs, nrows, (hsize_t)chunk, vlen, z, l);
+    
+    return 0;
+}
+
+/*****************************************************************************
+  This function generates attributes, groups, and datasets of many types. 
+
+  Parameters:
+            fname:	file_name.
+            ngrps:	number of top level groups.
+            ndsets:	number of datasets.
+            attrs:	number of attributes.
+            nrow:	number of rows in a dataset.
+            chunk:	chunk size (single number).
+            vlen:	max vlen size.
+            comp:	use latest format.
+            latest:	use gzip comnpression.
+			
+  Return:  Non-negative on success/Negative on failure
+  
+  Programmer:  Peter Cao <xcao@hdfgroup.org>, Jan. 2013
+ ****************************************************************************/
+herr_t create_perf_test_file(const char *fname, int ngrps, int ndsets, int nattrs, 
+                          int nrows, hsize_t chunk, int vlen, int compressed, int latest)
+{
+    int         i, j, k;
+    hid_t       fid, sid_null, sid_1d, sid_2d, did, aid, sid_2, fapl=H5P_DEFAULT, dcpl=H5P_DEFAULT, 
+                gid1, gid2, cmp_tid, tid_str, tid_enum, tid_array_f, tid_vlen_i, 
+				tid_vlen_s;
+    char        name[32];
+    hsize_t     dims[1]={nrows}, dims2d[2]={nrows, (nrows/4+1)}, dims_array[1]={FIXED_LEN}, 
+	            dim1[1]={2};
+    char        *enum_names[4] = {"SOLID", "LIQUID", "GAS", "PLASMA"};
+    test_comp_t *buf_comp=NULL;
+    int         *buf_int=NULL;
+    float       (*buf_float_a)[FIXED_LEN]=NULL;
+    double      **buf_double2d=NULL;
+    hvl_t       *buf_vlen_i=NULL;
+	char        (*buf_str)[FIXED_LEN];
+	char        **buf_vlen_s=NULL;
+	hobj_ref_t  buf_ref[2];
+	hdset_reg_ref_t buf_reg_ref[2];
+    size_t      offset;
+    herr_t      status;
+    char        *names[NTYPES] = { "int", "ulong", "float", "double", "fixed string", 
+	            "enum", "fixed float array", "vlen int array", "vlen strings"};
+    hid_t       types[NTYPES] = { H5T_NATIVE_INT, H5T_NATIVE_UINT64, H5T_NATIVE_FLOAT, 
+                H5T_NATIVE_DOUBLE, tid_str, tid_enum, tid_array_f, tid_vlen_i, tid_vlen_s};
+	hsize_t     coords[4][2] = { {0,  1}, {3, 5}, {1,  0}, {2,  4}}, start=0, stride=1, count=1;
+
+    /* create fixed string datatype */                                   
+    types[4] = tid_str =  H5Tcopy (H5T_C_S1);
+    H5Tset_size (tid_str, FIXED_LEN);
+
+    /* create enum datatype */
+    types[5] = tid_enum = H5Tenum_create(H5T_NATIVE_INT);
+    for (i = (int) SOLID; i <= (int) PLASMA; i++) {
+        phase_t val = (phase_t) i;
+        status = H5Tenum_insert (tid_enum, enum_names[i], &val);
+    }
+
+    /* create float array datatype */
+    types[6] = tid_array_f = H5Tarray_create (H5T_NATIVE_FLOAT, 1, dims_array);
+ 
+    /* create variable length integer datatypes */
+    types[7] = tid_vlen_i = H5Tvlen_create (H5T_NATIVE_INT);
+    	
+    /* create variable length string datatype */
+    types[8] = tid_vlen_s =  H5Tcopy (H5T_C_S1);
+    H5Tset_size (tid_vlen_s, H5T_VARIABLE);
+                   
+    /* create compound datatypes */    
+    cmp_tid = H5Tcreate (H5T_COMPOUND, sizeof (test_comp_t));
+    offset = 0;
+    for (i=0; i<NTYPES-2; i++) {
+        H5Tinsert(cmp_tid, names[i], offset, types[i]);
+        offset += H5Tget_size(types[i]);
+    }
+
+	H5Tinsert(cmp_tid, names[7], offset, types[7]);
+	offset += sizeof (hvl_t);
+	H5Tinsert(cmp_tid, names[8], offset, types[8]);
+
+	/* create dataspace */
+    sid_1d = H5Screate_simple (1, dims, NULL);
+    sid_2d = H5Screate_simple (2, dims2d, NULL);
+    sid_2 = H5Screate_simple  (1, dim1, NULL);
+    sid_null = H5Screate (H5S_NULL);	
+	
+	/* create fid access property */
+	fapl = H5Pcreate (H5P_FILE_ACCESS);
+    H5Pset_libver_bounds (fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST);
+
+	/* create dataset creation property */
+    dcpl = H5Pcreate (H5P_DATASET_CREATE);
+
+	/* set dataset chunk */
+    if (chunk>0) {
+        H5Pset_chunk (dcpl, 1, &chunk);
+    }
+
+	/* set dataset compression */
+    if (compressed) {
+        if (chunk<=0) {
+            chunk = nrows/10+1;;
+            H5Pset_chunk (dcpl, 1, &chunk);
+        }
+        H5Pset_shuffle (dcpl);
+        H5Pset_deflate (dcpl, 6);
+    }	
+
+	/* allocate buffers */
+    buf_comp   = (test_comp_t *)calloc(nrows, sizeof(test_comp_t));
+    buf_int    = (int *)calloc(nrows, sizeof(int));
+    buf_float_a  = malloc(nrows*sizeof(*buf_float_a));
+	buf_vlen_i = (hvl_t *)calloc(nrows, sizeof (hvl_t));
+    buf_vlen_s = (char **)calloc(nrows, sizeof(char *));
+	buf_str    =  malloc(nrows*sizeof (*buf_str));
+
+	/* allocate array of doulbe pointers */
+	buf_double2d  = (double **)calloc(dims2d[0],sizeof(double *));
+	/* allocate a contigous chunk of memory for the data */
+	buf_double2d[0] = (double *)calloc( dims2d[0]*dims2d[1],sizeof(double) );
+	/* assign memory city to pointer array */
+	for (i=1; i <dims2d[0]; i++) buf_double2d[i] = buf_double2d[0]+i*dims2d[1];
+
+	/* fill buffer values */
+    for (i=0; i<dims[0]; i++) {
+        buf_comp[i].i = buf_int[i] = i-2147483648;
+        buf_comp[i].l = 0xffffffffffffffff-i;
+        buf_comp[i].f = 1.0/(i+1.0);
+        buf_comp[i].d = 987654321.0*i+1.0/(i+1.0);
+        buf_comp[i].e = (phase_t) (i % (int) (PLASMA + 1));
+		
+		for (j=0; j<FIXED_LEN; j++) {
+		    buf_comp[i].f_array[j] = buf_float_a[i][j] = i*100+j;
+			buf_str[i][j] = 'a' + (i%26);
+		}
+		buf_str[i][FIXED_LEN-1] = 0;
+        strcpy(buf_comp[i].s, buf_str[i]);
+		
+		buf_vlen_i[i].len = i%vlen+1;
+		buf_vlen_i[i].p = (int *)calloc(buf_vlen_i[i].len, sizeof(int));
+		for (j=0; j<buf_vlen_i[i].len; j++)
+		    ((int*)(buf_vlen_i[i].p))[j] = i*100+j;
+		buf_comp[i].i_vlen = buf_vlen_i[i];
+		
+		buf_vlen_s[i] = (char *)calloc(i+2, sizeof(char));
+		for (j=0; j<i+1; j++)
+		    buf_vlen_s[i][j] = j%26+'A';
+		buf_comp[i].s_vlen = buf_vlen_s[i];
+		
+		for (j=0; j<dims2d[1]; j++)
+		    buf_double2d[i][j] = i+j/10000.0;
+    }
+
+
+	/* create file */
+    if (latest)
+        fid = H5Fcreate (fname, H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
+    else
+        fid = H5Fcreate (fname, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+	add_attrs(fid, 0);
+
+	/* add attributes*/
+    gid1 = H5Gcreate (fid, "attributes", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
+	nattrs = nattrs/6;
+	if (nattrs<1) nattrs = 1;
+    for (i=0; i<nattrs; i++)
+	    add_attrs(gid1, i);
+	H5Gclose(gid1);
+		
+	/* add many sub groups to a group*/
+    gid1 = H5Gcreate (fid, "groups", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
+	add_attrs(gid1, 0);
+    for (i=0; i<ngrps; i++) {
+	    /* create sub groups */
+        sprintf(name, "g%02d", i);
+        gid2 = H5Gcreate (gid1, name, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
+		if (!i) add_attrs(gid2, 0);
+		H5Gclose(gid2);
+	}
+	H5Gclose(gid1);
+	
+	/* add many datasets to a group */
+	gid1 = H5Gcreate (fid, "datasets", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
+	add_attrs(gid1, 0);
+	ndsets = ndsets/10;
+	if (ndsets<1) ndsets = 1;
+    for (j=0; j<ndsets; j++) {
+	
+		/* 1 add a null dataset */
+		sprintf(name, "%05d null dataset", j);
+        did = H5Dcreate (gid1, name, H5T_STD_I32LE, sid_null, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
+		if (!j) add_attrs(did, j); 
+        H5Dclose(did);		
+	
+	    /* 2 add fixed-length float array */
+		sprintf(name, "%05d fixed-length float array", j);
+		did = H5Dcreate (gid1, name, tid_array_f, sid_1d, H5P_DEFAULT, dcpl, H5P_DEFAULT);
+		H5Dwrite (did, tid_array_f, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf_float_a);
+		if (!j) add_attrs(did, j); 
+		H5Dclose(did);
+	
+		/* 3 add fixed-length strings */
+		sprintf(name, "%05d fixed-length strings", j);
+		did = H5Dcreate (gid1, name, tid_str, sid_1d, H5P_DEFAULT, dcpl, H5P_DEFAULT);
+		H5Dwrite (did, tid_str, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf_str);
+		if (!j) add_attrs(did, j); 
+		H5Dclose(did);
+		
+		/* 4 add compound data */
+	    sprintf(name, "%05d compund data", j);
+	    did = H5Dcreate (gid1, name, cmp_tid, sid_1d, H5P_DEFAULT, dcpl, H5P_DEFAULT);
+	    H5Dwrite (did, cmp_tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf_comp);
+		if (!j) add_attrs(did, j); 
+		H5Dclose(did);
+
+		/* 5 add 2D double */
+	    sprintf(name, "%05d 2D double", j);
+	    did = H5Dcreate (gid1, name, H5T_NATIVE_DOUBLE, sid_2d, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
+	    H5Dwrite (did, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf_double2d[0]);
+		if (!j) add_attrs(did, j); 
+		H5Dclose(did);
+		
+		/* 6 add 1D int array */
+	    sprintf(name, "%05d 1D int array", j);
+        did = H5Dcreate (gid1, name, H5T_NATIVE_INT, sid_1d, H5P_DEFAULT, dcpl, H5P_DEFAULT);
+        H5Dwrite (did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf_int);		
+		if (!j) add_attrs(did, j); 
+		H5Dclose(did);
+		
+		/* 7 add vlen int array */
+	    sprintf(name, "%05d vlen int array", j);
+        did = H5Dcreate (gid1, name, tid_vlen_i, sid_1d, H5P_DEFAULT, dcpl, H5P_DEFAULT);
+        H5Dwrite (did, tid_vlen_i, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf_vlen_i);		
+		H5Dclose(did);	
+
+		/* 8 add vlen strings */
+	    sprintf(name, "%05d vlen strings", j);
+        did = H5Dcreate (gid1, name, tid_vlen_s, sid_1d, H5P_DEFAULT, dcpl, H5P_DEFAULT);
+        H5Dwrite (did, tid_vlen_s, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf_vlen_s);		
+		if (!j) add_attrs(did, j); 
+		H5Dclose(did);	
+		
+		/* 9 add object refs */
+		H5Rcreate(&buf_ref[0],gid1, ".", H5R_OBJECT, -1); 
+		H5Rcreate(&buf_ref[1],gid1, name, H5R_OBJECT, -1); 
+	    sprintf(name, "%05d obj refs", j);
+        did = H5Dcreate (gid1, name, H5T_STD_REF_OBJ, sid_2, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
+        H5Dwrite (did, H5T_STD_REF_OBJ, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf_ref);		
+		if (!j) add_attrs(did, j); 
+		H5Dclose(did);
+
+		/* 10 add region refs */
+		sprintf(name, "%05d 2D double", j);
+		H5Sselect_elements (sid_2d, H5S_SELECT_SET, 4, coords[0]);
+		H5Rcreate(&buf_reg_ref[0],gid1, name, H5R_DATASET_REGION, sid_2d); 
+		H5Sselect_none(sid_2d);
+		sprintf(name, "%05d vlen int array", j);
+		count = dims[0]/2+1;
+		H5Sselect_hyperslab (sid_1d, H5S_SELECT_SET, &start, &stride, &count,NULL);
+		H5Rcreate(&buf_reg_ref[1],gid1, name, H5R_DATASET_REGION, sid_1d); 
+		H5Sselect_none(sid_1d);
+	    sprintf(name, "%05d region refs", j);
+        did = H5Dcreate (gid1, name, H5T_STD_REF_DSETREG, sid_2, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
+        H5Dwrite (did, H5T_STD_REF_DSETREG, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf_reg_ref);		
+		if (!j) add_attrs(did, j); 
+		H5Dclose(did);
+	}
+	H5Gclose(gid1);			
+	
+    H5Tclose (tid_array_f);
+    H5Tclose (tid_vlen_i);
+    H5Tclose (tid_vlen_s);
+    H5Tclose (tid_enum);
+    H5Tclose (tid_str);
+    H5Tclose (cmp_tid);
+    H5Pclose (dcpl);
+    H5Pclose (fapl);
+    H5Sclose (sid_1d);
+    H5Sclose (sid_2d);
+    H5Sclose (sid_2);
+    H5Sclose (sid_null);
+    H5Fclose (fid);
+
+    for (i=0; i<dims[0]; i++) {
+		free(buf_vlen_i[i].p);
+		free(buf_vlen_s[i]);
+	}
+		
+    free (buf_comp);
+    free (buf_int);
+    free (buf_float_a);
+    free (buf_double2d[0]);
+    free (buf_double2d);
+	free (buf_str);
+    free(buf_vlen_i);
+    free(buf_vlen_s);
+
+    return 0;
+}
+
+/* add a single attribute */
+void add_attr(hid_t oid, const char *name, hid_t tid, hid_t sid, void *buf) 
+{
+    hid_t aid;
+
+    aid = H5Acreate (oid, name, tid, sid, H5P_DEFAULT, H5P_DEFAULT);
+    H5Awrite(aid, tid, buf); 
+
+    H5Aclose(aid);
+}
+
+/* add different types of attributes */
+void add_attrs(hid_t oid, int idx) 
+{
+    char name[32];
+    int i0, i1, i2, j;
+	hid_t aid, tid, tid1, sid;
+    hvl_t               i_vlen[4];
+	hobj_ref_t          ref;
+	zipcode_t            cmp_data[4];
+    unsigned int        i = 0xffffffff;
+    long long           l = -2147483647;
+    float               f = 123456789.987654321;
+    double              d = 987654321.123456789;
+    char                *s[7] = {"Parting", "is such", "sweeter", "sorrow."};
+    float               f_array[4] = {1.0, 2.22, 3.333, 4.444};
+    char                *s_vlen[4] = {"Parting", "is such", "sweet", "sorrow."};
+	hsize_t             dims1[1]={1}, dims2[1]={4}, dims3[2]={3,5};
+	int                 int3d[4][3][5];
+	 size_t             offset = 0;
+	
+	for (i0=0; i0<4; i0++) {
+	    i_vlen[i0].len = (i0+1);
+		i_vlen[i0].p = (int *)calloc(i_vlen[i0].len, sizeof(int));
+		for (j=0; j<i_vlen[i0].len; j++)
+		    ((int *)i_vlen[i0].p)[j] = i0*100+j;
+	    for (i1=0; i1<3; i1++) {
+	        for (i2=0; i2<5; i2++)
+	            int3d[i0][i1][i2] = i0*i1-i1*i2+i0*i2;
+		}
+    }
+
+	cmp_data[0].zipcode = 01001;
+    cmp_data[0].city = "Agawam, Massachusetts";
+    cmp_data[1].zipcode = 99950;
+    cmp_data[1].city = "Ketchikan, Alaska";
+    cmp_data[2].zipcode = 00501;
+    cmp_data[2].city = "Holtsville, New York";
+    cmp_data[3].zipcode = 61820;
+    cmp_data[3].city = "Champaign, Illinois";
+	
+	/* 1 scalar point */
+	sid = H5Screate (H5S_SCALAR);
+	tid =  H5Tcopy (H5T_C_S1);
+    H5Tset_size (tid, strlen(s[0])+1);
+	sprintf(name, "%05d scalar int", idx);
+    add_attr(oid, name, H5T_NATIVE_UINT, sid, &i);	
+	sprintf(name, "%05d scalar ulong", idx);
+    add_attr(oid, name, H5T_NATIVE_INT64, sid, &l);	
+	sprintf(name, "%05d scalar str", idx);
+    add_attr(oid, name, tid, sid, s[0]);	
+	H5Tclose(tid);
+	H5Sclose(sid);
+
+	/* 2 single point */
+	sid = H5Screate_simple (1, dims1, NULL);
+    H5Rcreate(&ref, oid, ".", H5R_OBJECT, -1);
+	sprintf(name, "%05d single float", idx);
+    add_attr(oid, name, H5T_NATIVE_FLOAT, sid, &f);	
+	sprintf(name, "%05d single double", idx);
+    add_attr(oid, name, H5T_NATIVE_DOUBLE, sid, &d);	
+	sprintf(name, "%05d single obj_ref", idx);
+    add_attr(oid, name, H5T_STD_REF_OBJ, sid, &ref);	
+	H5Sclose(sid);
+	
+	/* 3 fixed length 1D array */
+	sid = H5Screate_simple (1, dims1, NULL);
+	tid = H5Tarray_create (H5T_NATIVE_FLOAT, 1, dims2);
+	sprintf(name, "%05d array float", idx);
+    add_attr(oid, name, tid, sid, &f_array[0]);
+	H5Tclose(tid);
+	tid =  H5Tcopy (H5T_C_S1);
+    H5Tset_size (tid, strlen(s[0])+1);	
+	tid1 = H5Tarray_create (tid, 1, dims2);
+	sprintf(name, "%05d array str", idx);
+    add_attr(oid, name, tid1, sid, s);	
+	H5Tclose(tid1);	
+	H5Tclose(tid);	
+	H5Sclose(sid);
+
+	/* 4 fixed length 2D int arrays */
+	sid = H5Screate_simple (1, dims2, NULL);
+	tid = H5Tarray_create (H5T_NATIVE_INT, 2, dims3);
+	sprintf(name, "%05d array int 2D", idx);
+    add_attr(oid, name, tid, sid, int3d[0][0]);
+	H5Tclose(tid);
+	H5Sclose(sid);
+	
+	/* 5 variable length arrays */
+	sid = H5Screate_simple (1, dims2, NULL);
+	tid = H5Tcopy (H5T_C_S1);
+	H5Tset_size (tid, H5T_VARIABLE);
+	sprintf(name, "%05d vlen strings", idx);
+    add_attr(oid, name, tid, sid, s_vlen);
+	H5Tclose(tid);	
+	tid = H5Tvlen_create (H5T_NATIVE_INT);;
+	sprintf(name, "%05d vlen int array", idx);
+    add_attr(oid, name, tid, sid, i_vlen);
+	H5Tclose(tid);
+	H5Sclose(sid);
+
+	/* 6 compound data */
+	sid = H5Screate_simple (1, dims2, NULL);
+	tid = H5Tcreate (H5T_COMPOUND, sizeof (zipcode_t));
+	tid1 = H5Tcopy (H5T_C_S1);
+	H5Tset_size (tid1, H5T_VARIABLE);	
+    H5Tinsert (tid, "zip code", 0, H5T_NATIVE_INT); offset += sizeof(H5T_NATIVE_INT);
+    H5Tinsert (tid, "City", offset, tid1); offset += sizeof(char *);
+	sprintf(name, "%05d compound data", idx);
+    add_attr(oid, name, tid, sid, cmp_data);
+	H5Tclose(tid1);	
+	H5Tclose(tid);	
+	H5Sclose(sid);
+
+	for (i0=0; i0<4; i0++) 
+	    free(i_vlen[i0].p);
+}
-- 
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