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
184
185
186
187
188
189
190
191
192
193
194
|
// $Id$
#ifndef ACE_CONDITION_T_C
#define ACE_CONDITION_T_C
#include "ace/Condition_T.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
ACE_RCSID(ace, Condition_T, "$Id$")
#if defined (ACE_HAS_THREADS)
#if !defined (__ACE_INLINE__)
#include "ace/Condition_T.inl"
#endif /* __ACE_INLINE__ */
ACE_ALLOC_HOOK_DEFINE(ACE_Condition)
template <class MUTEX> void
ACE_Condition<MUTEX>::dump (void) const
{
#if defined (ACE_HAS_DUMP)
// ACE_TRACE ("ACE_Condition<MUTEX>::dump");
ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this));
#if defined (CHORUS)
ACE_DEBUG ((LM_DEBUG, ACE_LIB_TEXT ("condname_ = %s\n"), this->condname_));
ACE_DEBUG ((LM_DEBUG, ACE_LIB_TEXT ("process_cond_ = %x\n"),
this->process_cond_));
#endif /* CHORUS */
ACE_DEBUG ((LM_DEBUG, ACE_LIB_TEXT ("\n")));
ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP));
#endif /* ACE_HAS_DUMP */
}
template <class MUTEX>
ACE_Thread_Condition<MUTEX>::ACE_Thread_Condition (MUTEX &m,
const ACE_TCHAR *name,
void *arg)
: ACE_Condition<MUTEX> (m, USYNC_THREAD, name, arg)
{
// ACE_TRACE ("ACE_Thread_Condition<MUTEX>::ACE_Thread_Condition");
}
template <class MUTEX> void
ACE_Thread_Condition<MUTEX>::dump (void) const
{
#if defined (ACE_HAS_DUMP)
// ACE_TRACE ("ACE_Thread_Condition<MUTEX>::dump");
ACE_Condition<MUTEX>::dump ();
#endif /* ACE_HAS_DUMP */
}
template <class MUTEX>
ACE_Condition<MUTEX>::ACE_Condition (MUTEX &m,
int type,
const ACE_TCHAR *name,
void *arg)
:
#if defined (CHORUS)
process_cond_(0),
condname_ (0),
#endif /* CHORUS */
mutex_ (m)
{
#if defined(CHORUS)
if (type == USYNC_PROCESS)
{
// Let's see if the shared memory entity already exists.
ACE_HANDLE fd = ACE_OS::shm_open (name,
O_RDWR | O_CREAT | O_EXCL,
ACE_DEFAULT_FILE_PERMS);
if (fd == ACE_INVALID_HANDLE)
{
if (errno == EEXIST)
fd = ACE_OS::shm_open (name,
O_RDWR | O_CREAT,
ACE_DEFAULT_FILE_PERMS);
else
return;
}
else
{
// We own this shared memory object! Let's set its size.
if (ACE_OS::ftruncate (fd,
sizeof (ACE_mutex_t)) == -1)
{
ACE_OS::close (fd);
return;
}
this->condname_ = ACE_OS::strdup (name);
if (this->condname_ == 0)
{
ACE_OS::close (fd);
return;
}
}
this->process_cond_ =
(ACE_cond_t *) ACE_OS::mmap (0,
sizeof (ACE_cond_t),
PROT_RDWR,
MAP_SHARED,
fd,
0);
ACE_OS::close (fd);
if (this->process_cond_ == MAP_FAILED)
return;
if (this->condname_
&& ACE_OS::cond_init (this->process_cond_,
type,
name,
arg) != 0)
return;
}
// It is ok to fall through into the <cond_init> below if the
// USYNC_PROCESS flag is not enabled.
#endif /* CHORUS */
// ACE_TRACE ("ACE_Condition<MUTEX>::ACE_Condition");
if (ACE_OS::cond_init (&this->cond_,
(short) type,
name,
arg) != 0)
ACE_ERROR ((LM_ERROR,
ACE_LIB_TEXT ("%p\n"),
ACE_LIB_TEXT ("ACE_Condition::ACE_Condition")));
}
template <class MUTEX>
ACE_Condition<MUTEX>::~ACE_Condition (void)
{
// ACE_TRACE ("ACE_Condition<MUTEX>::~ACE_Condition");
if (this->remove () == -1)
ACE_ERROR ((LM_ERROR,
ACE_LIB_TEXT ("%p\n"),
ACE_LIB_TEXT ("ACE_Condition::~ACE_Condition")));
}
template <class MUTEX> int
ACE_Condition<MUTEX>::wait (void)
{
// ACE_TRACE ("ACE_Condition<MUTEX>::wait");
#if defined (CHORUS)
if (this->process_cond_ != 0)
return ACE_OS::cond_wait (this->process_cond_,
&this->mutex_.lock_);
#endif /* CHORUS */
return ACE_OS::cond_wait (&this->cond_,
&this->mutex_.lock_);
}
template <class MUTEX> int
ACE_Condition<MUTEX>::wait (MUTEX &mutex,
const ACE_Time_Value *abstime)
{
// ACE_TRACE ("ACE_Condition<MUTEX>::wait");
if (abstime == 0)
return this->wait ();
else
{
#if defined (CHORUS)
if (this->process_cond_ != 0)
return ACE_OS::cond_timedwait (this->process_cond_,
&mutex_.lock_,
(ACE_Time_Value *) abstime);
#endif /* CHORUS */
return ACE_OS::cond_timedwait (&this->cond_,
&mutex.lock_,
(ACE_Time_Value *) abstime);
}
}
// Peform an "alertable" timed wait. If the argument ABSTIME == 0
// then we do a regular cond_wait(), else we do a timed wait for up to
// ABSTIME using the Solaris cond_timedwait() function.
template <class MUTEX> int
ACE_Condition<MUTEX>::wait (const ACE_Time_Value *abstime)
{
// ACE_TRACE ("ACE_Condition<MUTEX>::wait");
return this->wait (this->mutex_, abstime);
}
#endif /* ACE_HAS_THREADS */
#endif /* ACE_CONDITION_T_C */
|
