1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/*
* Copyright © 1998 NCSA
* All rights reserved.
*
* Programmer: Saurabh Bagchi (bagchi@uiuc.edu)
* Wednesday, August 11, 1999.
*
* Modifications: Saurabh Bagchi (Aug 17, 1999)
* Modified to work with VFL (HDF51.3).
*/
/* Test the following functionality of the GASS driver.
1. Open a remote file for read (the dataset was written using gass_write.c).
2. Create a memory buffer to hold the dataset.
3. Read the dataset into the memory buffer.
4. Get some information about the dataset from the file.
*/
#include <h5test.h>
#include <strings.h>
#ifndef H5_HAVE_GASS
int main(void)
{
printf("Test skipped because GASS driver not available\n");
return 0;
}
#else
/*#define URL "ftp://gass:gass12@which/tmp/gass/junk.w"*/
#define URL "http://hdf/GLOBUS/a.h5"
/* #define DATASETNAME "Int1Array" */
#define NX_SUB 3 /* hyperslab dimensions */
#define NY_SUB 4
#define NX 7 /* output buffer dimensions */
#define NY 7
#define NZ 3
#define RANK 2
#define RANK_OUT 3
int
main (int argc, char **argv)
{
hid_t fapl = -1, file, dataset; /* handles */
char DATASETNAME[32];
hid_t datatype, dataspace;
hid_t memspace;
H5T_class_t class; /* data type class */
H5T_order_t order; /* data order */
size_t size; /*
* size of the data element
* stored in file
*/
hsize_t dimsm[3]; /* memory space dimensions */
hsize_t dims_out[2]; /* dataset dimensions */
herr_t status;
int data_out[NX][NY][NZ ]; /* output buffer */
hsize_t count[2]; /* size of the hyperslab in the file */
hssize_t offset[2]; /* hyperslab offset in the file */
hsize_t count_out[3]; /* size of the hyperslab in memory */
hssize_t offset_out[3]; /* hyperslab offset in memory */
int i, j, k, status_n, rank;
GASS_Info ginf;
if (argc > 2) {
printf ("Incorrect command line. \n");
printf ("Correct command line: %s [DATASET NAME] \n", argv[0]);
printf ("The two datasets present in the file are: \"IntArray\" and "
"\"Int1Array\"\n");
exit(1);
}
printf ("Correct command line: %s [DATASET NAME] \n", argv[0]);
printf ("The two datasets present in the file are: \"IntArray\" and "
"\"Int1Array\"\n");
printf ("Default dataset is IntArray. \n");
if (argc == 1)
strcpy (DATASETNAME, "IntArray");
else if (!strcmp(argv[1],"IntArray") || !strcmp(argv[1],"Int1Array"))
strcpy (DATASETNAME, argv[1]);
else
strcpy (DATASETNAME, "IntArray");
printf ("\n Reading dataset %s \n\n", DATASETNAME);
for (j = 0; j < NX; j++) {
for (i = 0; i < NY; i++) {
for (k = 0; k < NZ ; k++)
data_out[j][i][k] = 0;
}
}
/* Create access property list and set the driver to GASS */
fapl = H5Pcreate (H5P_FILE_ACCESS);
if (fapl < 0) {
printf (" H5Pcreate failed. \n");
return -1;
}
ginf.block_size = 0;
ginf.max_length =0;
/* ginf = GASS_INFO_NULL; */
status = H5Pset_fapl_gass (fapl, ginf);
if (status < 0) {
printf ("H5Pset_fapl_gass failed. \n");
return -1;
}
/*
* Open the file and the dataset.
*/
file = H5Fopen(URL, H5F_ACC_RDONLY, fapl);
dataset = H5Dopen(file, DATASETNAME);
/*
* Get datatype and dataspace handles and then query
* dataset class, order, size, rank and dimensions.
*/
datatype = H5Dget_type(dataset); /* datatype handle */
class = H5Tget_class(datatype);
if (class == H5T_INTEGER) printf("Data set has INTEGER type \n");
order = H5Tget_order(datatype);
if (order == H5T_ORDER_LE) printf("Little endian order \n");
size = H5Tget_size(datatype);
printf(" Data size is %d \n", size);
dataspace = H5Dget_space(dataset); /* dataspace handle */
rank = H5Sget_simple_extent_ndims(dataspace);
status_n = H5Sget_simple_extent_dims(dataspace, dims_out, NULL);
printf("rank %d, dimensions %lu x %lu \n", rank,
(unsigned long)(dims_out[0]), (unsigned long)(dims_out[1]));
/*
* Define hyperslab in the dataset.
*/
offset[0] = 1;
offset[1] = 2;
count[0] = NX_SUB;
count[1] = NY_SUB;
status = H5Sselect_hyperslab(dataspace, H5S_SELECT_SET, offset, NULL,
count, NULL);
/*
* Define the memory dataspace.
*/
dimsm[0] = NX;
dimsm[1] = NY;
dimsm[2] = NZ ;
memspace = H5Screate_simple(RANK_OUT,dimsm,NULL);
/*
* Define memory hyperslab.
*/
offset_out[0] = 3;
offset_out[1] = 0;
offset_out[2] = 0;
count_out[0] = NX_SUB;
count_out[1] = NY_SUB;
count_out[2] = 1;
status = H5Sselect_hyperslab(memspace, H5S_SELECT_SET, offset_out, NULL,
count_out, NULL);
/*
* Read data from hyperslab in the file into the hyperslab in
* memory and display.
*/
status = H5Dread(dataset, H5T_NATIVE_INT, memspace, dataspace,
H5P_DEFAULT, data_out);
for (j = 0; j < NX; j++) {
for (i = 0; i < NY; i++) printf("%d ", data_out[j][i][0]);
printf("\n");
}
/*
* 0 0 0 0 0 0 0
* 0 0 0 0 0 0 0
* 0 0 0 0 0 0 0
* 3 4 5 6 0 0 0
* 4 5 6 7 0 0 0
* 5 6 7 8 0 0 0
* 0 0 0 0 0 0 0
*/
/*
* Close/release resources.
*/
H5Tclose(datatype);
H5Dclose(dataset);
H5Sclose(dataspace);
H5Sclose(memspace);
H5Fclose(file);
H5Pclose(fapl);
return 0;
}
#endif
|
