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
|
/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "test.h"
#include <atomic>
#include "threading/semaphore.h"
#include "threading/thread.h"
class TestThreading : public TestBase {
public:
TestThreading() { TestManager::registerTestModule(this); }
const char *getName() { return "TestThreading"; }
void runTests(IGameDef *gamedef);
void testStartStopWait();
void testThreadKill();
void testAtomicSemaphoreThread();
};
static TestThreading g_test_instance;
void TestThreading::runTests(IGameDef *gamedef)
{
TEST(testStartStopWait);
TEST(testThreadKill);
TEST(testAtomicSemaphoreThread);
}
class SimpleTestThread : public Thread {
public:
SimpleTestThread(unsigned int interval) :
Thread("SimpleTest"),
m_interval(interval)
{
}
private:
void *run()
{
void *retval = this;
if (isCurrentThread() == false)
retval = (void *)0xBAD;
while (!stopRequested())
sleep_ms(m_interval);
return retval;
}
unsigned int m_interval;
};
void TestThreading::testStartStopWait()
{
void *thread_retval;
SimpleTestThread *thread = new SimpleTestThread(25);
// Try this a couple times, since a Thread should be reusable after waiting
for (size_t i = 0; i != 5; i++) {
// Can't wait() on a joined, stopped thread
UASSERT(thread->wait() == false);
// start() should work the first time, but not the second.
UASSERT(thread->start() == true);
UASSERT(thread->start() == false);
UASSERT(thread->isRunning() == true);
UASSERT(thread->isCurrentThread() == false);
// Let it loop a few times...
sleep_ms(70);
// It's still running, so the return value shouldn't be available to us.
UASSERT(thread->getReturnValue(&thread_retval) == false);
// stop() should always succeed
UASSERT(thread->stop() == true);
// wait() only needs to wait the first time - the other two are no-ops.
UASSERT(thread->wait() == true);
UASSERT(thread->wait() == false);
UASSERT(thread->wait() == false);
// Now that the thread is stopped, we should be able to get the
// return value, and it should be the object itself.
thread_retval = NULL;
UASSERT(thread->getReturnValue(&thread_retval) == true);
UASSERT(thread_retval == thread);
}
delete thread;
}
void TestThreading::testThreadKill()
{
SimpleTestThread *thread = new SimpleTestThread(300);
UASSERT(thread->start() == true);
// kill()ing is quite violent, so let's make sure our victim is sleeping
// before we do this... so we don't corrupt the rest of the program's state
sleep_ms(100);
UASSERT(thread->kill() == true);
// The state of the thread object should be reset if all went well
UASSERT(thread->isRunning() == false);
UASSERT(thread->start() == true);
UASSERT(thread->stop() == true);
UASSERT(thread->wait() == true);
// kill() after already waiting should fail.
UASSERT(thread->kill() == false);
delete thread;
}
class AtomicTestThread : public Thread {
public:
AtomicTestThread(std::atomic<u32> &v, Semaphore &trigger) :
Thread("AtomicTest"),
val(v),
trigger(trigger)
{
}
private:
void *run()
{
trigger.wait();
for (u32 i = 0; i < 0x10000; ++i)
++val;
return NULL;
}
std::atomic<u32> &val;
Semaphore &trigger;
};
void TestThreading::testAtomicSemaphoreThread()
{
std::atomic<u32> val;
val = 0;
Semaphore trigger;
static const u8 num_threads = 4;
AtomicTestThread *threads[num_threads];
for (auto &thread : threads) {
thread = new AtomicTestThread(val, trigger);
UASSERT(thread->start());
}
trigger.post(num_threads);
for (AtomicTestThread *thread : threads) {
thread->wait();
delete thread;
}
UASSERT(val == num_threads * 0x10000);
}
|
