1 karl 1.8 //%2004////////////////////////////////////////////////////////////////////////
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2 chip 1.1 //
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3 karl 1.8 // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
4 // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
5 // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
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6 karl 1.3 // IBM Corp.; EMC Corporation, The Open Group.
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7 karl 1.8 // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
8 // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
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9 chip 1.1 //
10 // Permission is hereby granted, free of charge, to any person obtaining a copy
11 // of this software and associated documentation files (the "Software"), to
12 // deal in the Software without restriction, including without limitation the
13 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
14 // sell copies of the Software, and to permit persons to whom the Software is
15 // furnished to do so, subject to the following conditions:
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16 karl 1.3 //
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17 chip 1.1 // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
18 // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
19 // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
20 // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
21 // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
22 // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
23 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 //
26 //==============================================================================
27 //
28 // Author: Chip Vincent (cvincent@us.ibm.com)
29 //
30 // Modified By:
31 //
32 //%/////////////////////////////////////////////////////////////////////////////
33
34 #ifndef Pegasus_SafeQueue_h
35 #define Pegasus_SafeQueue_h
36
37 #include <Pegasus/Common/Config.h>
38 chip 1.1 #include <Pegasus/Common/Queue.h>
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39 kumpf 1.5 #include <Pegasus/Common/IPC.h>
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40 chip 1.1
41 PEGASUS_NAMESPACE_BEGIN
42
43 template<class T>
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44 schuur 1.7 class SafeQueue
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45 chip 1.1 {
46 public:
47 SafeQueue(void);
48 virtual ~SafeQueue(void);
49
50 void enqueue(const T & O);
51 T dequeue(void);
52
53 T & front(void);
54 const T & front(void) const;
55
56 T & back(void);
57 const T & back(void) const;
58
59 Uint32 size(void) const;
60
61 protected:
62 mutable Mutex _mutex;
63 Queue<T> _queue;
64
65 };
66 chip 1.1
67 template<class T>
68 SafeQueue<T>::SafeQueue(void)
69 {
70 }
71
72 template<class T>
73 SafeQueue<T>::~SafeQueue(void)
74 {
75 }
76
77 template<class T>
78 void SafeQueue<T>::enqueue(const T & O)
79 {
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80 kumpf 1.5 AutoMutex lock(_mutex);
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81 chip 1.1
82 _queue.enqueue(O);
83 }
84
85 template<class T>
86 T SafeQueue<T>::dequeue(void)
87 {
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88 kumpf 1.5 AutoMutex lock(_mutex);
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89 chip 1.1
90 T O = _queue.front();
91
92 _queue.dequeue();
93
94 return(O);
95 }
96
97 template<class T>
98 T & SafeQueue<T>::front(void)
99 {
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100 kumpf 1.5 AutoMutex lock(_mutex);
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101 chip 1.1
102 return(_queue.front());
103 }
104
105 template<class T>
106 const T & SafeQueue<T>::front(void) const
107 {
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108 kumpf 1.5 AutoMutex lock(_mutex);
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109 chip 1.1
110 return(_queue.front());
111 }
112
113 template<class T>
114 T & SafeQueue<T>::back(void)
115 {
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116 kumpf 1.5 AutoMutex lock(_mutex);
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117 chip 1.1
118 return(_queue.back());
119 }
120
121 template<class T>
122 const T & SafeQueue<T>::back(void) const
123 {
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124 kumpf 1.5 AutoMutex lock(_mutex);
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125 chip 1.1
126 return(_queue.back());
127 }
128
129 template<class T>
130 Uint32 SafeQueue<T>::size(void) const
131 {
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132 kumpf 1.5 AutoMutex lock(_mutex);
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133 chip 1.1
134 return(_queue.size());
135 }
136
137 PEGASUS_NAMESPACE_END
138
139 #endif
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