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Clean up threading
[dragonfireclient.git] / src / unittest / test_threading.cpp
1 /*
2 Minetest
3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 GNU Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
19
20 #include "test.h"
21
22 #include "threading/atomic.h"
23 #include "threading/semaphore.h"
24 #include "threading/thread.h"
25
26
27 class TestThreading : public TestBase {
28 public:
29         TestThreading() { TestManager::registerTestModule(this); }
30         const char *getName() { return "TestThreading"; }
31         void runTests(IGameDef *);
32         void testAtomicSemaphoreThread();
33 };
34
35 static TestThreading g_test_instance;
36
37 void TestThreading::runTests(IGameDef *)
38 {
39         TEST(testAtomicSemaphoreThread);
40 }
41
42
43 class AtomicTestThread : public Thread
44 {
45 public:
46         AtomicTestThread(Atomic<u32> &v, Semaphore &trigger) :
47                 Thread("AtomicTest"),
48                 val(v),
49                 trigger(trigger)
50         {}
51 private:
52         void *run()
53         {
54                 trigger.wait();
55                 for (u32 i = 0; i < 0x10000; ++i)
56                         ++val;
57                 return NULL;
58         }
59         Atomic<u32> &val;
60         Semaphore &trigger;
61 };
62
63
64 void TestThreading::testAtomicSemaphoreThread()
65 {
66         Atomic<u32> val;
67         Semaphore trigger;
68         static const u8 num_threads = 4;
69
70         AtomicTestThread *threads[num_threads];
71         for (u8 i = 0; i < num_threads; ++i) {
72                 threads[i] = new AtomicTestThread(val, trigger);
73                 UASSERT(threads[i]->start());
74         }
75
76         trigger.post(num_threads);
77
78         for (u8 i = 0; i < num_threads; ++i) {
79                 threads[i]->wait();
80                 delete threads[i];
81         }
82
83         UASSERT(val == num_threads * 0x10000);
84 }
85