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
204
205
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/********************************************************************
*
* Testing thread safety. Deliberate per-thread errors to test error stack
* -----------------------------------------------------------------------
*
* Create 16 multiple threads to create datasets with the same name. The
* library should respond with 15 equivalent error stack printouts (one for
* each bad thread). The final hdf5 file should be a valid file with one
* entry.
*
* Temporary files generated:
*
* ttsafe_error.h5
*
* HDF5 APIs exercised in thread:
*
* H5Screate_simple, H5Tcopy, H5Tset_order, H5Dcreate, H5Dclose,
* H5Tclose, H5Sclose.
*
* Created: Apr 28 2000
* Programmer: Chee Wai LEE
*
* Modification History
* --------------------
*
* 19 May 2000, Bill Wendling
* Modified so that it creates a unique HDF5 file and removes it on
* cleanup.
*
********************************************************************/
#include "ttsafe.h"
#ifdef H5_HAVE_THREADSAFE
#define NUM_THREAD 16
#define FILENAME "ttsafe_error.h5"
/* Having a common dataset name is an error */
#define DATASETNAME "commonname"
#define EXPECTED_ERROR_DEPTH 8
#define WRITE_NUMBER 37
static herr_t error_callback(void *);
static herr_t walk_error_callback(int, H5E_error_t *, void *);
static void *tts_error_thread(void *);
/* Global variables */
hid_t error_file;
typedef struct err_num_struct {
int maj_num;
int min_num;
} err_num_t;
err_num_t expected[] = {
{H5E_DATASET, H5E_CANTINIT},
{H5E_DATASET, H5E_CANTINIT},
{H5E_SYM, H5E_EXISTS},
{H5E_SYM, H5E_CANTINSERT},
{H5E_SYM, H5E_CANTINSERT},
{H5E_BTREE, H5E_CANTINIT},
{H5E_BTREE, H5E_CANTINSERT},
{H5E_SYM, H5E_CANTINSERT},
};
int error_flag = 0;
int error_count = 0;
pthread_mutex_t error_mutex;
void tts_error(void)
{
pthread_t threads[NUM_THREAD];
pthread_attr_t attribute;
hid_t dataset;
int value, i;
/* set up mutex for global count of errors */
pthread_mutex_init(&error_mutex, NULL);
/* make thread scheduling global */
pthread_attr_init(&attribute);
#ifdef H5_HAVE_SYSTEM_SCOPE_THREADS
pthread_attr_setscope(&attribute, PTHREAD_SCOPE_SYSTEM);
#endif /* H5_HAVE_SYSTEM_SCOPE_THREADS */
/*
* Create a hdf5 file using H5F_ACC_TRUNC access, default file
* creation plist and default file access plist
*/
error_file = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
for (i = 0; i < NUM_THREAD; i++)
pthread_create(&threads[i], &attribute, tts_error_thread, NULL);
for (i = 0; i < NUM_THREAD; i++)
pthread_join(threads[i],NULL);
if (error_flag)
TestErrPrintf("Threads reporting different error values!\n");
if (error_count != NUM_THREAD - 1)
TestErrPrintf("Error: %d threads failed instead of %d\n", error_count, NUM_THREAD-1);
dataset = H5Dopen(error_file, DATASETNAME);
H5Dread(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &value);
if (value != WRITE_NUMBER)
TestErrPrintf("Error: Successful thread wrote value %d instead of %d\n", value, WRITE_NUMBER);
H5Dclose(dataset);
H5Fclose(error_file);
/* Destroy the thread attribute */
pthread_attr_destroy(&attribute);
}
static
void *tts_error_thread(void UNUSED *arg)
{
hid_t dataspace, datatype, dataset;
hsize_t dimsf[1]; /* dataset dimensions */
H5E_auto_t old_error_cb;
void *old_error_client_data;
int value;
/* preserve previous error stack handler */
H5Eget_auto(&old_error_cb, &old_error_client_data);
/* set each thread's error stack handler */
H5Eset_auto(error_callback, NULL);
/* define dataspace for dataset */
dimsf[0] = 1;
dataspace = H5Screate_simple(1,dimsf,NULL);
/* define datatype for the data using native little endian integers */
datatype = H5Tcopy(H5T_NATIVE_INT);
H5Tset_order(datatype, H5T_ORDER_LE);
/* create a new dataset within the file */
dataset = H5Dcreate(error_file, DATASETNAME, datatype, dataspace, H5P_DEFAULT);
if (dataset >= 0) { /* not an error */
value = WRITE_NUMBER;
H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &value);
H5Dclose(dataset);
}
H5Tclose(datatype);
H5Sclose(dataspace);
/* turn our error stack handler off */
H5Eset_auto(old_error_cb, old_error_client_data);
return NULL;
}
static
herr_t error_callback(void *client_data)
{
pthread_mutex_lock(&error_mutex);
error_count++;
pthread_mutex_unlock(&error_mutex);
return H5Ewalk(H5E_WALK_DOWNWARD, walk_error_callback, client_data);
}
static
herr_t walk_error_callback(int n, H5E_error_t *err_desc, void UNUSED *client_data)
{
int maj_num, min_num;
if (err_desc) {
maj_num = err_desc->maj_num;
min_num = err_desc->min_num;
if (n < EXPECTED_ERROR_DEPTH && maj_num == expected[n].maj_num &&
min_num == expected[n].min_num)
return SUCCEED;
}
error_flag = -1;
return SUCCEED;
}
void cleanup_error(void)
{
HDunlink(FILENAME);
}
#endif /*H5_HAVE_THREADSAFE*/
|
