1 mike  1.8 //%/////////////////////////////////////////////////////////////////////////////
  2           //

  3 kumpf 1.10 // Copyright (c) 2000, 2001, 2002 BMC Software, Hewlett-Packard Company, IBM,
  4            // The Open Group, Tivoli Systems

  5 mike  1.8  //
  6            // Permission is hereby granted, free of charge, to any person obtaining a copy

  7 kumpf 1.10 // of this software and associated documentation files (the "Software"), to
  8            // deal in the Software without restriction, including without limitation the
  9            // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or

 10 mike  1.8  // sell copies of the Software, and to permit persons to whom the Software is
 11            // furnished to do so, subject to the following conditions:
 12            // 

 13 kumpf 1.10 // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN

 14 mike  1.8  // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
 15            // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT

 16 kumpf 1.10 // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 17            // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 18            // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

 19 mike  1.8  // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 20            // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 21            //
 22            //==============================================================================
 23            //
 24            // Author: Mike Brasher (mbrasher@bmc.com)
 25            //
 26            // Modified By:
 27            //
 28            //%/////////////////////////////////////////////////////////////////////////////
 29            
 30            #ifndef Pegasus_Destroyer_h
 31            #define Pegasus_Destroyer_h
 32            
 33            #include <Pegasus/Common/Config.h>
 34            
 35            PEGASUS_NAMESPACE_BEGIN
 36            
 37            /**
 38                This class provides a convenient way of disposing of a heap object.
 39                It automatically deletes the enclosed pointer on destruction. For
 40 mike  1.8      example:
 41            
 42                <pre>
 43            	A* a = new A;
 44            	Destroyer<A> dummy = a;
 45                </pre>
 46            
 47                When the destroyer object destructs, it frees the instance of A.
 48                This is particularly useful when a function has multiple returns.
 49            
 50                There are two classes here: Destroyer<> and ArrayDestroyer<>. The
 51                ArrayDestroyer<> class is used when a pointer must be deleted using the 
 52                array form as shown below:
 53            
 54                <pre>
 55            	delete [] ptr;
 56                <pre>
 57            */
 58            template<class T>
 59            class Destroyer
 60            {
 61 mike  1.8  public:
 62            
 63                Destroyer(T* ptr) : _ptr(ptr) { }
 64            
 65                ~Destroyer() { delete _ptr; }
 66            
 67                T* getPointer() { return _ptr; }
 68            
 69            private:
 70            

 71 mike  1.9  #ifdef PEGASUS_PLATFORM_ZOS_ZSERIES_IBM
 72                Destroyer(const Destroyer<T>&) { }
 73            
 74                Destroyer<T>& operator=(const Destroyer<T>&) { return *this; }
 75            #else

 76 mike  1.8      Destroyer(const Destroyer&) { }
 77            
 78                Destroyer& operator=(const Destroyer&) { return *this; }

 79 mike  1.9  #endif

 80 mike  1.8  
 81                T* _ptr;
 82            };
 83            
 84            template<class T>
 85            class ArrayDestroyer
 86            {
 87            public:
 88            
 89                ArrayDestroyer(T* ptr) : _ptr(ptr) { }
 90            
 91                ~ArrayDestroyer() { delete [] _ptr; }
 92            
 93                T* getPointer() { return _ptr; }
 94            
 95                ArrayDestroyer(const ArrayDestroyer<T>&) { }
 96            
 97                ArrayDestroyer<T>& operator=(const ArrayDestroyer<T>&) { return *this; }
 98            
 99            private:
100            
101 mike  1.8      T* _ptr;
102            };
103            
104            PEGASUS_NAMESPACE_END
105            
106            #endif /* Pegasus_Destroyer_h */