blob: 444b09fb503775d57e52e84f0eb0ff55ceb57811 (
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
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
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef _SALHELPER_QUEUE_HXX_
#define _SALHELPER_QUEUE_HXX_
#include <sal/types.h>
#include <osl/diagnose.h>
#include <osl/mutex.hxx>
#include <osl/semaphor.hxx>
#ifndef __LIST__
#include <list>
#endif
namespace salhelper
{
//----------------------------------------------------------------------------
#ifndef SALHELPER_COPYCTOR_API
#define SALHELPER_COPYCTOR_API(C) C (const C&); C& operator= (const C&)
#endif
//----------------------------------------------------------------------------
template<class element_type>
class QueueBase : protected std::list<element_type>
{
/** Representation.
*/
osl::Mutex m_aMutex;
/** Not implemented.
*/
SALHELPER_COPYCTOR_API(QueueBase<element_type>);
public:
inline QueueBase()
{}
inline ~QueueBase()
{
erase (this->begin(), this->end());
}
inline void put (const element_type& element)
{
osl::MutexGuard aGuard (m_aMutex);
push_back (element);
}
inline element_type get()
{
element_type element;
osl::MutexGuard aGuard (m_aMutex);
if (!this->empty())
{
element = this->front();
this->pop_front();
}
return (element);
}
};
//----------------------------------------------------------------------------
/** Queue.
@deprecated
Must not be used, as it internally uses unnamed semaphores, which are not
supported on Mac OS X.
*/
template<class element_type>
class Queue : protected QueueBase<element_type>
{
/** Representation.
*/
osl::Semaphore m_aNotEmpty;
/** Not implemented.
*/
SALHELPER_COPYCTOR_API(Queue<element_type>);
public:
inline Queue() : m_aNotEmpty (static_cast< sal_uInt32 >(0))
{}
inline ~Queue()
{}
inline void put (const element_type& element)
{
QueueBase<element_type>::put (element);
m_aNotEmpty.release();
}
inline element_type get()
{
element_type element;
m_aNotEmpty.acquire();
element = QueueBase<element_type>::get();
return (element);
}
};
//----------------------------------------------------------------------------
/** Bounded queue.
@deprecated
Must not be used, as it internally uses unnamed semaphores, which are not
supported on Mac OS X.
*/
template<class element_type>
class BoundedQueue : protected Queue<element_type>
{
/** Representation.
*/
osl::Semaphore m_aNotFull;
/** Not implemented.
*/
SALHELPER_COPYCTOR_API(BoundedQueue<element_type>);
public:
inline BoundedQueue (sal_uInt32 capacity) : m_aNotFull (capacity)
{
OSL_POSTCOND(capacity, "BoundedQueue:BoundedQueue(): no capacity");
}
inline ~BoundedQueue()
{}
inline void put (const element_type& element)
{
m_aNotFull.acquire();
Queue<element_type>::put (element);
}
inline element_type get()
{
element_type element;
element = Queue<element_type>::get();
m_aNotFull.release();
return (element);
}
};
//----------------------------------------------------------------------------
} // namespace salhelper
#endif /* !_SALHELPER_QUEUE_HXX_ */
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
