1 karl  1.9 //%2005////////////////////////////////////////////////////////////////////////

  2 chip  1.1 //

  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.;

  6 karl  1.3 // IBM Corp.; EMC Corporation, The Open Group.

  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.

  9 karl  1.9 // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
 10           // EMC Corporation; VERITAS Software Corporation; The Open Group.

 11 chip  1.1 //
 12           // Permission is hereby granted, free of charge, to any person obtaining a copy
 13           // of this software and associated documentation files (the "Software"), to
 14           // deal in the Software without restriction, including without limitation the
 15           // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 16           // sell copies of the Software, and to permit persons to whom the Software is
 17           // furnished to do so, subject to the following conditions:

 18 karl  1.3 // 

 19 chip  1.1 // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
 20           // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
 21           // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 22           // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 23           // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 24           // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 25           // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 26           // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 27           //
 28           //==============================================================================
 29           //
 30           // Author: Chip Vincent (cvincent@us.ibm.com)
 31           //
 32           // Modified By:
 33           //
 34           //%/////////////////////////////////////////////////////////////////////////////
 35           
 36           #ifndef Pegasus_SafeQueue_h
 37           #define Pegasus_SafeQueue_h
 38           
 39           #include <Pegasus/Common/Config.h>
 40 chip  1.1 #include <Pegasus/Common/Queue.h>

 41 kumpf 1.5 #include <Pegasus/Common/IPC.h>

 42 chip  1.1 
 43           PEGASUS_NAMESPACE_BEGIN
 44           
 45           template<class T>

 46 schuur 1.7 class SafeQueue

 47 chip   1.1 {
 48            public:
 49                SafeQueue(void);
 50                virtual ~SafeQueue(void);
 51            
 52                void enqueue(const T & O);
 53                T dequeue(void);
 54            
 55                T & front(void);
 56                const T & front(void) const;
 57            
 58                T & back(void);
 59                const T & back(void) const;
 60            
 61                Uint32 size(void) const;
 62            
 63            protected:
 64                mutable Mutex _mutex;
 65                Queue<T> _queue;
 66            
 67            };
 68 chip   1.1 
 69            template<class T>
 70            SafeQueue<T>::SafeQueue(void)
 71            {
 72            }
 73            
 74            template<class T>
 75            SafeQueue<T>::~SafeQueue(void)
 76            {
 77            }
 78            
 79            template<class T>
 80            void SafeQueue<T>::enqueue(const T & O)
 81            {

 82 kumpf  1.5     AutoMutex lock(_mutex);

 83 chip   1.1 
 84                _queue.enqueue(O);
 85            }
 86            
 87            template<class T>
 88            T SafeQueue<T>::dequeue(void)
 89            {

 90 kumpf  1.5     AutoMutex lock(_mutex);

 91 chip   1.1 
 92                T O = _queue.front();
 93            
 94                _queue.dequeue();
 95            
 96                return(O);
 97            }
 98            
 99            template<class T>
100            T & SafeQueue<T>::front(void)
101            {

102 kumpf  1.5     AutoMutex lock(_mutex);

103 chip   1.1 
104                return(_queue.front());
105            }
106            
107            template<class T>
108            const T & SafeQueue<T>::front(void) const
109            {

110 kumpf  1.5     AutoMutex lock(_mutex);

111 chip   1.1 
112                return(_queue.front());
113            }
114            
115            template<class T>
116            T & SafeQueue<T>::back(void)
117            {

118 kumpf  1.5     AutoMutex lock(_mutex);

119 chip   1.1 
120                return(_queue.back());
121            }
122            
123            template<class T>
124            const T & SafeQueue<T>::back(void) const
125            {

126 kumpf  1.5     AutoMutex lock(_mutex);

127 chip   1.1 
128                return(_queue.back());
129            }
130            
131            template<class T>
132            Uint32 SafeQueue<T>::size(void) const
133            {

134 kumpf  1.5     AutoMutex lock(_mutex);

135 chip   1.1 
136                return(_queue.size());
137            }
138            
139            PEGASUS_NAMESPACE_END
140            
141            #endif