summaryrefslogtreecommitdiff
path: root/ACE/ace/Message_Queue.inl
blob: 388198a0bf55ed526debe0b4552ca1d49395a3f5 (plain)
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
// -*- C++ -*-
//
// $Id$

#if defined (ACE_WIN32) && (ACE_HAS_WINNT4 != 0)
#  include "ace/Guard_T.h"
#endif /* ACE_WIN32 */

ACE_BEGIN_VERSIONED_NAMESPACE_DECL

ACE_INLINE
ACE_Message_Queue_Base::ACE_Message_Queue_Base (void)
{
}

#if defined (ACE_VXWORKS)
// Specialization to use native VxWorks Message Queues.

ACE_INLINE MSG_Q_ID
ACE_Message_Queue_Vx::msgq (void)
{
  // Hijack the tail_ field to store the MSG_Q_ID.
  return reinterpret_cast<MSG_Q_ID> (tail_);
}

#endif /* ACE_VXWORKS */

#if defined (ACE_WIN32) && (ACE_HAS_WINNT4 != 0)

ACE_INLINE int
ACE_Message_Queue_NT::enqueue_tail (ACE_Message_Block *new_item,
                                    ACE_Time_Value *timeout)
{
  ACE_TRACE ("ACE_Message_Queue_NT::enqueue_tail");
  return this->enqueue (new_item, timeout);
}

ACE_INLINE int
ACE_Message_Queue_NT::dequeue_head (ACE_Message_Block *&first_item,
                                    ACE_Time_Value *timeout)
{
  ACE_TRACE ("ACE_Message_Queue_NT::dequeue_head");
  return this->dequeue (first_item, timeout);
}

ACE_INLINE int
ACE_Message_Queue_NT::is_full (void)
{
  ACE_TRACE ("ACE_Message_Queue_NT::is_full");
  return 0; // Always not full.
}

ACE_INLINE int
ACE_Message_Queue_NT::is_empty (void)
{
  ACE_TRACE ("ACE_Message_Queue_NT::is_empty");
  ACE_GUARD_RETURN (ACE_Thread_Mutex, ace_mon, this->lock_, 0);

  return this->cur_bytes_ > 0 || this->cur_count_ > 0 ? 0 : 1;
}

ACE_INLINE size_t
ACE_Message_Queue_NT::message_bytes (void)
{
  ACE_TRACE ("ACE_Message_Queue_NT::message_bytes");
  // Accessing to size_t must be atomic.
  return this->cur_bytes_;
}

ACE_INLINE size_t
ACE_Message_Queue_NT::message_length (void)
{
  ACE_TRACE ("ACE_Message_Queue_NT::message_length");
  // Accessing to size_t must be atomic.
  return this->cur_length_;
}

ACE_INLINE size_t
ACE_Message_Queue_NT::message_count (void)
{
  ACE_TRACE ("ACE_Message_Queue_NT::message_count");
  // Accessing to size_t must be atomic.
  return this->cur_count_;
}

ACE_INLINE void
ACE_Message_Queue_NT::message_bytes (size_t new_value)
{
  ACE_TRACE ("ACE_Message_Queue_NT::message_bytes");
  ACE_GUARD (ACE_Thread_Mutex, ace_mon, this->lock_);

  this->cur_bytes_ = new_value;
}

ACE_INLINE void
ACE_Message_Queue_NT::message_length (size_t new_value)
{
  ACE_TRACE ("ACE_Message_Queue_NT::message_length");
  ACE_GUARD (ACE_Thread_Mutex, ace_mon, this->lock_);

  this->cur_length_ = new_value;
}

ACE_INLINE DWORD
ACE_Message_Queue_NT::max_threads (void)
{
  ACE_TRACE ("ACE_Message_Queue_NT::max_threads");
  return this->max_cthrs_;
}

ACE_INLINE int
ACE_Message_Queue_NT::deactivated (void)
{
  ACE_TRACE ("ACE_Message_Queue_NT::deactivated");
  // Accessing to int must be atomic.
  return this->state_ == ACE_Message_Queue_Base::DEACTIVATED;
}

ACE_INLINE ACE_HANDLE
ACE_Message_Queue_NT::completion_port (void)
{
  ACE_TRACE ("ACE_Message_Queue_NT::completion_port");
  return this->completion_port_;
}

ACE_INLINE int
ACE_Message_Queue_NT::peek_dequeue_head (ACE_Message_Block *&first_item,
                                         ACE_Time_Value *timeout)
{
  ACE_UNUSED_ARG(first_item);
  ACE_UNUSED_ARG(timeout);
  ACE_NOTSUP_RETURN (-1);
}

ACE_INLINE ACE_Notification_Strategy *
ACE_Message_Queue_NT::notification_strategy (void)
{
  ACE_NOTSUP_RETURN (0);
}

ACE_INLINE void
ACE_Message_Queue_NT::notification_strategy (ACE_Notification_Strategy *)
{
}

#endif /* ACE_WIN32 && ACE_HAS_WINNT4 != 0 */

ACE_END_VERSIONED_NAMESPACE_DECL