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
202
203
|
/* 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.
*/
#include "h5_err_macros.h"
#include <hdf5.h>
#include <H5DSpublic.h>
#define FILE_NAME "tst_h_files4.h5"
#define STR_LEN 255
/* Heavy duty test file...*/
/*#define FILE_NAME "/machine/downloads/T159_1978110112.nc4"*/
herr_t
obj_iter(hid_t o_id, const char *name, const H5O_info_t *object_info,
void *op_data)
{
*(int *)op_data = object_info->type;
return 1;
}
/* This is a callback function for H5Literate().
The parameters of this callback function have the following values or
meanings:
g_id Group that serves as root of the iteration; same value as the
H5Lvisit group_id parameter
name Name of link, relative to g_id, being examined at current step of
the iteration
info H5L_info_t struct containing information regarding that link
op_data User-defined pointer to data required by the application in
processing the link; a pass-through of the op_data pointer provided
with the H5Lvisit function call
*/
herr_t
op_func (hid_t g_id, const char *name, const H5L_info_t *info,
void *op_data)
{
hid_t id;
H5I_type_t obj_type;
strcpy((char *)op_data, name);
if ((id = H5Oopen_by_addr(g_id, info->u.address)) < 0) ERR;
/* Using H5Ovisit is really slow. Use H5Iget_type for a fast
* answer. */
/* if (H5Ovisit(id, H5_INDEX_CRT_ORDER, H5_ITER_INC, obj_iter, */
/* (void *)&obj_class) != 1) ERR; */
if ((obj_type = H5Iget_type(id)) < 0) ERR;
if (H5Oclose(id) < 0) ERR;
/* Turn this on to learn what type of object you've opened. */
/* switch (obj_type) */
/* { */
/* case H5I_GROUP: */
/* printf("group %s\n", name); */
/* break; */
/* case H5I_DATATYPE: */
/* printf("type %s\n", name); */
/* break; */
/* case H5I_DATASET: */
/* printf("data %s\n", name); */
/* break; */
/* default: */
/* printf("unknown class\n"); */
/* } */
return 1;
}
int
main()
{
printf("\n*** Checking HDF5 file functions.\n");
printf("*** Creating HDF5 file in the canonical netCDF-4 way...");
{
hid_t fapl_id, fcpl_id, fileid, grpid, fileid2;
hsize_t num_obj;
/* Create file access and create property lists. */
if ((fapl_id = H5Pcreate(H5P_FILE_ACCESS)) < 0) ERR;
if ((fcpl_id = H5Pcreate(H5P_FILE_CREATE)) < 0) ERR;
/* Set latest_format in access propertly list. This ensures that
* the latest, greatest, HDF5 versions are used in the file. */
/* if (H5Pset_libver_bounds(fapl_id, H5F_LIBVER_LATEST,
H5F_LIBVER_LATEST) < 0) ERR;*/
/* Set H5P_CRT_ORDER_TRACKED in the creation property list. This
* turns on HDF5 creation ordering in the file. */
if (H5Pset_link_creation_order(fcpl_id, (H5P_CRT_ORDER_TRACKED |
H5P_CRT_ORDER_INDEXED)) < 0) ERR;
if (H5Pset_attr_creation_order(fcpl_id, (H5P_CRT_ORDER_TRACKED |
H5P_CRT_ORDER_INDEXED)) < 0) ERR;
/* Set close degree. */
if (H5Pset_fclose_degree(fapl_id, H5F_CLOSE_STRONG)) ERR;
/* Create the file. */
if ((fileid = H5Fcreate(FILE_NAME, H5F_ACC_TRUNC, fcpl_id, fapl_id)) < 0) ERR;
/* Open the root group. */
if ((grpid = H5Gopen2(fileid, "/", H5P_DEFAULT)) < 0) ERR;
/* Close up. */
if (H5Pclose(fapl_id) < 0 ||
H5Pclose(fcpl_id) < 0 ||
H5Gclose(grpid) < 0 ||
H5Fclose(fileid) < 0)
ERR;
/* Reopen the file and check it. */
if ((fapl_id = H5Pcreate(H5P_FILE_ACCESS)) < 0) ERR;
if (H5Pset_fclose_degree(fapl_id, H5F_CLOSE_STRONG)) ERR;
if ((fileid = H5Fopen(FILE_NAME, H5F_ACC_RDWR, fapl_id)) < 0) ERR;
if (H5Gget_num_objs(fileid, &num_obj) < 0) ERR;
if (num_obj) ERR;
/* Open another copy of the same file. Must use the same file
* access degree or HDF5 will not open the file. */
if ((fileid2 = H5Fopen(FILE_NAME, H5F_ACC_RDWR, fapl_id)) < 0) ERR;
if (H5Fclose(fileid) < 0) ERR;
if (H5Fclose(fileid2) < 0) ERR;
if (H5Pclose(fapl_id) < 0) ERR;
}
SUMMARIZE_ERR;
printf("*** Opening a HDF5 file with H5Literate...");
{
hid_t fapl_id, fileid, grpid;
hsize_t idx = 0;
char obj_name[STR_LEN + 1];
hsize_t num_obj;
int i;
if ((fapl_id = H5Pcreate(H5P_FILE_ACCESS)) < 0) ERR;
if (H5Pset_fclose_degree(fapl_id, H5F_CLOSE_STRONG)) ERR;
if (H5Pset_cache(fapl_id, 0, CHUNK_CACHE_NELEMS, CHUNK_CACHE_SIZE,
CHUNK_CACHE_PREEMPTION) < 0) ERR;
if ((fileid = H5Fopen(FILE_NAME, H5F_ACC_RDONLY, fapl_id)) < 0) ERR;
if ((grpid = H5Gopen2(fileid, "/", H5P_DEFAULT)) < 0) ERR;
if (H5Gget_num_objs(grpid, &num_obj) < 0) ERR;
for (i = 0; i < num_obj; i++)
{
if (H5Literate(grpid, H5_INDEX_CRT_ORDER, H5_ITER_INC, &idx, op_func,
(void *)obj_name) != 1) ERR;
printf("encountered object %s\n", obj_name);
}
if (H5Gclose(grpid) < 0) ERR;
if (H5Fclose(fileid) < 0) ERR;
if (H5Pclose(fapl_id) < 0) ERR;
}
SUMMARIZE_ERR;
printf("*** Opening a HDF5 file in the canonical netCDF-4 way...");
{
hid_t fapl_id, fileid, grpid;
H5_index_t idx_field = H5_INDEX_CRT_ORDER;
H5O_info_t obj_info;
hsize_t num_obj;
ssize_t size;
char obj_name[STR_LEN + 1];
int i;
if ((fapl_id = H5Pcreate(H5P_FILE_ACCESS)) < 0) ERR;
if (H5Pset_fclose_degree(fapl_id, H5F_CLOSE_STRONG)) ERR;
if (H5Pset_cache(fapl_id, 0, CHUNK_CACHE_NELEMS, CHUNK_CACHE_SIZE,
CHUNK_CACHE_PREEMPTION) < 0) ERR;
if ((fileid = H5Fopen(FILE_NAME, H5F_ACC_RDONLY, fapl_id)) < 0) ERR;
if ((grpid = H5Gopen2(fileid, "/", H5P_DEFAULT)) < 0) ERR;
/* How many objects in this group? */
if (H5Gget_num_objs(grpid, &num_obj) < 0) ERR;
for (i = 0; i < num_obj; i++)
{
if (H5Oget_info_by_idx(grpid, ".", H5_INDEX_CRT_ORDER, H5_ITER_INC,
i, &obj_info, H5P_DEFAULT)) ERR;
if ((size = H5Lget_name_by_idx(grpid, ".", idx_field, H5_ITER_INC, i,
NULL, 0, H5P_DEFAULT)) < 0) ERR;
if (H5Lget_name_by_idx(grpid, ".", idx_field, H5_ITER_INC, i,
obj_name, size+1, H5P_DEFAULT) < 0) ERR;
}
if (H5Gclose(grpid) < 0) ERR;
if (H5Fclose(fileid) < 0) ERR;
if (H5Pclose(fapl_id) < 0) ERR;
}
SUMMARIZE_ERR;
FINAL_RESULTS;
}
|
