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
|
#include "ace/OS_Thread_Adapter.h"
#include "ace/Thread_Hook.h"
#include "ace/Object_Manager_Base.h"
#include "ace/Global_Macros.h"
#include "ace/OS_NS_Thread.h"
#if defined (ACE_HAS_ALLOC_HOOKS)
# include "ace/Malloc_Base.h"
#endif /* ACE_HAS_ALLOC_HOOKS */
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
ACE_OS_Thread_Adapter::ACE_OS_Thread_Adapter (
ACE_THR_FUNC user_func
, void *arg
, ACE_THR_C_FUNC entry_point
# if defined (ACE_HAS_WIN32_STRUCTURAL_EXCEPTIONS)
, ACE_SEH_EXCEPT_HANDLER selector
, ACE_SEH_EXCEPT_HANDLER handler
# endif /* ACE_HAS_WIN32_STRUCTURAL_EXCEPTIONS */
, long cancel_flags
)
: ACE_Base_Thread_Adapter (user_func, arg, entry_point
, 0
# if defined (ACE_HAS_WIN32_STRUCTURAL_EXCEPTIONS)
, selector
, handler
# endif /* ACE_HAS_WIN32_STRUCTURAL_EXCEPTIONS */
, cancel_flags
)
{
}
ACE_OS_Thread_Adapter::~ACE_OS_Thread_Adapter (void)
{
}
ACE_ALLOC_HOOK_DEFINE(ACE_OS_Thread_Adapter)
ACE_THR_FUNC_RETURN
ACE_OS_Thread_Adapter::invoke (void)
{
// Inherit the logging features if the parent thread has an
// ACE_Log_Msg instance in thread-specific storage.
this->inherit_log_msg ();
// Extract the arguments.
ACE_THR_FUNC_INTERNAL func =
reinterpret_cast<ACE_THR_FUNC_INTERNAL> (this->user_func_);
void *arg = this->arg_;
// Pick up the cancel-related flags before deleting this.
long cancel_flags = this->flags_;
// Delete ourselves since we don't need <this> anymore. Make sure
// not to access <this> anywhere below this point.
delete this;
#if defined (ACE_NEEDS_LWP_PRIO_SET)
// On SunOS, the LWP priority needs to be set in order to get
// preemption when running in the RT class. This is the ACE way to
// do that . . .
ACE_hthread_t thr_handle;
ACE_OS::thr_self (thr_handle);
int prio;
// thr_getprio () on the current thread should never fail.
ACE_OS::thr_getprio (thr_handle, prio);
// ACE_OS::thr_setprio () has the special logic to set the LWP priority,
// if running in the RT class.
ACE_OS::thr_setprio (prio);
#endif /* ACE_NEEDS_LWP_PRIO_SET */
if (cancel_flags != 0)
{
// If both flags are set, ignore this.
int old = 0;
int val = cancel_flags & (THR_CANCEL_ENABLE | THR_CANCEL_DISABLE);
if (val == THR_CANCEL_ENABLE || val == THR_CANCEL_DISABLE)
ACE_OS::thr_setcancelstate (val, &old);
val = cancel_flags & (THR_CANCEL_DEFERRED | THR_CANCEL_ASYNCHRONOUS);
if (val == THR_CANCEL_DEFERRED || val == THR_CANCEL_ASYNCHRONOUS)
ACE_OS::thr_setcanceltype (val, &old);
}
ACE_THR_FUNC_RETURN status = 0;
ACE_SEH_TRY
{
ACE_SEH_TRY
{
ACE_Thread_Hook *hook =
ACE_OS_Object_Manager::thread_hook ();
if (hook)
// Invoke the start hook to give the user a chance to
// perform some initialization processing before the
// <func> is invoked.
status = hook->start (reinterpret_cast<ACE_THR_FUNC> (func),
arg);
else
{
// Call thread entry point.
status = (*func) (arg);
}
}
#if defined (ACE_HAS_WIN32_STRUCTURAL_EXCEPTIONS)
ACE_SEH_EXCEPT (ACE_OS_Object_Manager::seh_except_selector ()(
(void *) GetExceptionInformation ()))
{
ACE_OS_Object_Manager::seh_except_handler ()(0);
}
#endif /* ACE_HAS_WIN32_STRUCTURAL_EXCEPTIONS */
}
ACE_SEH_FINALLY
{
// If we changed this to 1, change the respective if in
// Task::svc_run to 0.
#if 0
// Call the <Task->close> hook.
if (func == reinterpret_cast<ACE_THR_FUNC_INTERNAL> (ACE_Task_Base::svc_run))
{
ACE_Task_Base *task_ptr = (ACE_Task_Base *) arg;
ACE_Thread_Manager *thr_mgr_ptr = task_ptr->thr_mgr ();
// This calls the Task->close () hook.
task_ptr->cleanup (task_ptr, 0);
// This prevents a second invocation of the cleanup code
// (called later by <ACE_Thread_Manager::exit>.
thr_mgr_ptr->at_exit (task_ptr, 0, 0);
}
#endif /* 0 */
#if defined (ACE_WIN32) || defined (ACE_HAS_TSS_EMULATION)
// Call TSS destructors.
ACE_OS::cleanup_tss (0 /* not main thread */);
# if defined (ACE_WIN32)
// Exit the thread. Allow CWinThread-destructor to be invoked
// from AfxEndThread. _endthreadex will be called from
// AfxEndThread so don't exit the thread now if we are running
// an MFC thread.
# if defined (ACE_HAS_MFC) && (ACE_HAS_MFC != 0)
// Not spawned by ACE_Thread_Manager, use the old buggy
// version. You should seriously consider using
// ACE_Thread_Manager to spawn threads. The following code
// is know to cause some problem.
CWinThread *pThread = ::AfxGetThread ();
if (!pThread || pThread->m_nThreadID != ACE_OS::thr_self ())
ACE_ENDTHREADEX (status);
else
::AfxEndThread (status);
# else
ACE_ENDTHREADEX (status);
# endif /* ACE_HAS_MFC && ACE_HAS_MFS != 0*/
# endif /* ACE_WIN32 */
#endif /* ACE_WIN32 || ACE_HAS_TSS_EMULATION */
}
return status;
}
ACE_END_VERSIONED_NAMESPACE_DECL
|
