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
|
//=============================================================================
/**
* @file Abandoned.cpp
*
* $Id: Abandoned.cpp 93639 2011-03-24 13:32:13Z johnnyw $
*
*
* Tests the WFMO_Reactor's ability to handle abandoned mutexes.
*
*
* @author Irfan Pyarali <irfan@cs.wustl.edu>
*/
//=============================================================================
#include "ace/OS_main.h"
#if defined (ACE_WIN32)
#include "ace/Reactor.h"
#include "ace/Thread_Manager.h"
#include "ace/Process_Mutex.h"
#include "ace/Auto_Event.h"
class Event_Handler : public ACE_Event_Handler
{
public:
int handle_signal (int signum,
siginfo_t * = 0,
ucontext_t * = 0);
int handle_timeout (const ACE_Time_Value &tv,
const void *arg = 0);
ACE_Auto_Event handle_;
ACE_Process_Mutex *mutex_;
int iterations_;
};
static int abandon = 1;
static ACE_THR_FUNC_RETURN
worker (void *data)
{
Event_Handler *handler = (Event_Handler *) data;
handler->handle_.signal ();
handler->mutex_->acquire ();
if (!abandon)
handler->mutex_->release ();
return 0;
}
int
Event_Handler::handle_signal (int,
siginfo_t *s,
ucontext_t *)
{
ACE_HANDLE handle = s->si_handle_;
if (handle == this->handle_.handle ())
ACE_Reactor::instance ()->register_handler (this,
this->mutex_->lock ().proc_mutex_);
else
{
ACE_Reactor::instance ()->remove_handler (this->mutex_->lock ().proc_mutex_,
ACE_Event_Handler::DONT_CALL);
delete this->mutex_;
}
return 0;
}
int
Event_Handler::handle_timeout (const ACE_Time_Value &,
const void *)
{
--this->iterations_;
ACE_DEBUG ((LM_DEBUG,
"(%t) timeout occured @ %T, iterations left %d\n",
this->iterations_));
if (this->iterations_ == 0)
{
ACE_Reactor::instance ()->remove_handler (this->handle_.handle (),
ACE_Event_Handler::DONT_CALL);
ACE_Reactor::instance ()->cancel_timer (this);
ACE_Reactor::end_event_loop ();
}
else
{
ACE_NEW_RETURN (this->mutex_,
ACE_Process_Mutex,
-1);
int result = ACE_Thread_Manager::instance ()->spawn (&worker, this);
ACE_ASSERT (result != -1);
ACE_UNUSED_ARG (result);
}
return 0;
}
int
ACE_TMAIN (int , ACE_TCHAR *[])
{
Event_Handler event_handler;
event_handler.iterations_ = 5;
int result = ACE_Reactor::instance ()->register_handler
(&event_handler,
event_handler.handle_.handle ());
ACE_ASSERT (result == 0);
ACE_Time_Value timeout (2);
result = ACE_Reactor::instance ()->schedule_timer (&event_handler,
0,
timeout,
timeout);
ACE_ASSERT (result != -1);
ACE_Reactor::run_event_loop ();
return 0;
}
#else /* !ACE_WIN32 */
int
ACE_TMAIN (int , ACE_TCHAR *[])
{
return 0;
}
#endif /* ACE_WIN32 */
|
