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
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
/* Copyright (C) 2011 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <pthread.h>
#include <sched.h>
#include <sys/select.h>
#include <signal.h>
#include <stdlib.h>
#include <tap/basic.h>
#include "knot/server/dthreads.h"
/* Unit runnable data. */
static pthread_mutex_t _runnable_mx;
static volatile int _runnable_i = 0;
static const int _runnable_cycles = 10000;
/*! \brief Unit runnable. */
int runnable(struct dthread_t *thread)
{
for (int i = 0; i < _runnable_cycles; ++i) {
// Increase counter
pthread_mutex_lock(&_runnable_mx);
++_runnable_i;
pthread_mutex_unlock(&_runnable_mx);
// Cancellation point
if (dt_is_cancelled(thread)) {
break;
}
// Yield
sched_yield();
}
return 0;
}
/* Destructor data. */
static volatile int _destructor_data;
static pthread_mutex_t _destructor_mx;
/*! \brief Thread destructor. */
int destruct(struct dthread_t *thread)
{
pthread_mutex_lock(&_destructor_mx);
_destructor_data += 1;
pthread_mutex_unlock(&_destructor_mx);
return 0;
}
/*! \brief Create unit. */
static inline dt_unit_t *dt_test_create(int size)
{
return dt_create(size);
}
/*! \brief Assign a task. */
static inline int dt_test_single(dt_unit_t *unit)
{
return dt_repurpose(unit->threads[0], &runnable, NULL) == 0;
}
/*! \brief Assign task to all unit threads. */
static inline int dt_test_coherent(dt_unit_t *unit)
{
int ret = 0;
for (int i = 0; i < unit->size; ++i) {
ret += dt_repurpose(unit->threads[i], &runnable, NULL);
}
return ret == 0;
}
/*! \brief Start unit. */
static inline int dt_test_start(dt_unit_t *unit)
{
return dt_start(unit) == 0;
}
/*! \brief Stop unit. */
static inline int dt_test_stop(dt_unit_t *unit)
{
return dt_stop(unit);
}
/*! \brief Join unit. */
static inline int dt_test_join(dt_unit_t *unit)
{
return dt_join(unit) == 0;
}
// Signal handler
static void interrupt_handle(int s)
{
}
/*! API: run tests. */
int main(int argc, char *argv[])
{
plan(15);
// Register service and signal handler
struct sigaction sa;
sa.sa_handler = interrupt_handle;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
sigaction(SIGALRM, &sa, NULL); // Interrupt
/* Initialize */
srand(time(NULL));
pthread_mutex_init(&_runnable_mx, NULL);
pthread_mutex_init(&_destructor_mx, NULL);
/* Test 1: Create unit */
dt_unit_t *unit = dt_test_create(2);
ok(unit != 0, "dthreads: create unit (optimal size %d)", unit->size);
if (unit == 0) {
skip_block(17, "No dthreads unit");
goto skip_all;
}
/* Test 2: Assign a single task. */
ok(dt_test_single(unit), "dthreads: assign single task");
/* Test 3: Start tasks. */
_runnable_i = 0;
ok(dt_test_start(unit), "dthreads: start single task");
/* Test 4: Wait for tasks. */
ok(dt_test_join(unit), "dthreads: join threads");
/* Test 5: Compare counter. */
int expected = _runnable_cycles * 1;
is_int(expected, _runnable_i, "dthreads: result ok");
/* Test 6: Repurpose threads. */
_runnable_i = 0;
ok(dt_test_coherent(unit), "dthreads: repurpose to coherent");
/* Test 7: Restart threads. */
ok(dt_test_start(unit), "dthreads: start coherent unit");
/* Test 8: Wait for tasks. */
ok(dt_test_join(unit), "dthreads: join threads");
/* Test 9: Deinitialize */
dt_delete(&unit);
ok(unit == NULL, "dthreads: delete unit");
/* Test 10: Wrong values. */
unit = dt_create(-1);
ok(unit == NULL, "dthreads: create with negative count");
unit = dt_create_coherent(dt_optimal_size(), 0, 0, 0);
/* Test 11: NULL runnable. */
is_int(0, dt_start(unit), "dthreads: start with NULL runnable");
/* Test 12: NULL operations crashing. */
int op_count = 14;
int expected_min = op_count * -1;
// All functions must return -1 at least
int ret = 0;
ret += dt_activate(0); // -1
ret += dt_cancel(0); // -1
ret += dt_compact(0); // -1
dt_delete(0); //
ret += dt_is_cancelled(0); // 0
ret += dt_join(0); // -1
ret += dt_repurpose(0, 0, 0); // -1
ret += dt_signalize(0, SIGALRM); // -1
ret += dt_start(0); // -1
ret += dt_start_id(0); // -1
ret += dt_stop(0); // -1
ret += dt_stop_id(0); // -1
ret += dt_unit_lock(0); // -1
ret += dt_unit_unlock(0); // -1
is_int(-1464, ret, "dthreads: not crashed while executing functions on NULL context");
/* Test 13: expected results. */
ok(ret <= expected_min,
"dthreads: correct values when passed NULL context "
"(%d, min: %d)", ret, expected_min);
/* Test 14: Thread destructor. */
_destructor_data = 0;
unit = dt_create_coherent(2, 0, destruct, 0);
dt_start(unit);
dt_stop(unit);
dt_join(unit);
is_int(2, _destructor_data, "dthreads: destructor with dt_create_coherent()");
dt_delete(&unit);
/* Test 15: Thread destructor setter. */
unit = dt_create(1);
dt_set_desctructor(unit->threads[0], destruct);
dt_start(unit);
dt_stop(unit);
dt_join(unit);
is_int(3, _destructor_data, "dthreads: destructor with dt_set_desctructor()");
dt_delete(&unit);
skip_all:
pthread_mutex_destroy(&_runnable_mx);
pthread_mutex_destroy(&_destructor_mx);
return 0;
}
|
