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
|
//=============================================================================
/**
* @file Future_Stress_Test.cpp
*
* This example tests the ACE Future set() and get() operations in
* multithreaded environment and concurrent access.
*
* Usage: Future_Stress_Test [-t <duration in seconds>]
* [-n <number of threads>]
*
* @see https://github.com/DOCGroup/ACE_TAO/issues/2163
*
* @author Andres Kruse <Frank.Hilliger@cs-sol.de>
*/
//=============================================================================
#include "test_config.h"
#include <ace/Time_Value.h>
#include <ace/Countdown_Time.h>
#include <ace/Future.h>
#include <ace/Get_Opt.h>
#include <random>
#if defined (ACE_HAS_THREADS)
struct Worker_Config
{
int a;
int b;
int c;
ACE_Future<int> result;
};
void* worker (void* args)
{
Worker_Config* config = static_cast<Worker_Config*>(args);
int r = config->a + config->b * config->c;
config->result.set(r);
return 0;
}
void* runner (void* args)
{
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%t) runner start\n")));
std::random_device rd;
std::mt19937 gen(rd());
std::uniform_int_distribution<> dis(1,1000000);
ACE_Time_Value* duration = static_cast<ACE_Time_Value*>(args);
ACE_Countdown_Time timer(duration);
timer.start();
uint64_t runNum = 0;
do
{
if( ++runNum % 5000 == 0 )
{
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%t) runner iteration %u\n"), runNum));
}
ACE_Future<int> result;
Worker_Config config;
config.a = dis(gen);
config.b = dis(gen);
config.c = dis(gen);
config.result = result;
ACE_hthread_t thread_id;
int expected_res = config.a+config.b*config.c;
int actual_res = -1;
if (ACE_Thread::spawn((ACE_THR_FUNC)worker,
static_cast<void*>(&config), THR_NEW_LWP | THR_JOINABLE, 0,
&thread_id) == -1)
{
ACE_ERROR ((LM_INFO,
ACE_TEXT ("worker thread spawn failed\n")));
}
result.get(actual_res);
if( actual_res != expected_res )
{
// hit the bug...
ACE_ERROR ((LM_INFO,
ACE_TEXT ("unexpected ACE_Future result\n")));
abort();
}
ACE_THR_FUNC_RETURN status;
ACE_Thread::join(thread_id, &status);
timer.update();
} while( *duration != ACE_Time_Value::zero );
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%t) runner done\n"), runNum));
return 0;
}
int
run_main (int argc, ACE_TCHAR *argv[])
{
ACE_START_TEST (ACE_TEXT ("Future_Stress_Test"));
ACE_Time_Value duration(5);
long n_threads = 5;
ACE_Get_Opt getopt (argc, argv, ACE_TEXT ("t:n:"));
bool valid = true;
int c;
while ((c = getopt ()) != -1 && valid)
{
//FUZZ: enable check_for_lack_ACE_OS
switch (c)
{
case 't':
duration.set(ACE_OS::atoi (getopt.opt_arg ()));
break;
case 'n':
n_threads = ACE_OS::atoi (getopt.opt_arg ());
break;
default:
ACE_ERROR ((LM_ERROR,
"Usage: Future_Stress_Test [-t <duration in seconds>]"
"\t[-n <number of threads>]\n"));
valid = false;
break;
}
}
if (valid)
{
ACE_Thread_Manager::instance ()->spawn_n (n_threads,
ACE_THR_FUNC (runner),
static_cast<void*>(&duration),
THR_NEW_LWP | THR_DETACHED);
ACE_Thread_Manager::instance ()->wait ();
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%t) All threads finished, cleanup and exit\n")));
}
ACE_END_TEST;
return 0;
}
#else
int
run_main (int, ACE_TCHAR *[])
{
ACE_ERROR ((LM_INFO,
ACE_TEXT ("threads not supported on this platform\n")));
}
#endif /* ACE_HAS_THREADS */
|
