| 1 | // **********************************************************************
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| 2 | //
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| 3 | // Copyright (c) 2000
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| 4 | // Object Oriented Concepts, Inc.
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| 5 | // Billerica, MA, USA
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| 6 | //
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| 7 | // All Rights Reserved
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| 8 | //
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| 9 | // **********************************************************************
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| 10 | 
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| 11 | #ifndef JTC_HANDLE_I_H
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| 12 | #define JTC_HANDLE_I_H
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| 13 | 
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| 14 | // ----------------------------------------------------------------------
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| 15 | // JTCHandleT constructors and destructor
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| 16 | // ----------------------------------------------------------------------
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| 17 | 
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| 18 | template <class T>
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| 19 | JTCHandleT<T>::JTCHandleT(T* tg)
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| 20 |     : tg_(tg)
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| 21 | {
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| 22 |     if(tg_ != 0)
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| 23 |     {
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| 24 |         tg_ -> refMutex_.lock();
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| 25 |         ++tg_ -> _jtc_refCount_; // Boost reference count.
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| 26 |         tg_ -> refMutex_.unlock();
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| 27 |     }
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| 28 | }
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| 29 | 
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| 30 | template <class T>
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| 31 | JTCHandleT<T>::~JTCHandleT()
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| 32 | {
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| 33 |     bool deleteIt = false;
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| 34 |     {
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| 35 |         if(tg_ != 0)
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| 36 |         {
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| 37 |             tg_ -> refMutex_.lock();
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| 38 |             if(--tg_ -> _jtc_refCount_ == 0)
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| 39 |                 deleteIt = true;
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| 40 |             tg_ -> refMutex_.unlock();
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| 41 |         }
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| 42 |     }
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| 43 |     if(deleteIt)
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| 44 |         delete tg_;
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| 45 | }
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| 46 | 
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| 47 | // ----------------------------------------------------------------------
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| 48 | // JTCHandle public member implementation
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| 49 | // ----------------------------------------------------------------------
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| 50 | template <class T>
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| 51 | JTCHandleT<T>::JTCHandleT(const JTCHandleT<T>& rhs)
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| 52 |     : tg_(rhs.tg_)
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| 53 | {
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| 54 |     if(tg_ != 0)
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| 55 |     {
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| 56 |         tg_ -> refMutex_.lock();
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| 57 |         ++tg_ -> _jtc_refCount_; // Boost reference count.
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| 58 |         tg_ -> refMutex_.unlock();
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| 59 |     }
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| 60 | }
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| 61 | 
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| 62 | 
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| 63 | template <class T>
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| 64 | JTCHandleT<T>&
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| 65 | JTCHandleT<T>::operator=(const JTCHandleT<T>& rhs)
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| 66 | {
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| 67 |     bool deleteIt = false;
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| 68 |     {
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| 69 |         if(tg_ == rhs.tg_)
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| 70 |             return *this;
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| 71 |         
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| 72 |         if(tg_ != 0)
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| 73 |         {
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| 74 |             tg_ -> refMutex_.lock();
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| 75 |             if(--tg_ -> _jtc_refCount_ == 0) // Time to clean out object?
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| 76 |                 deleteIt = true;
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| 77 |             tg_ -> refMutex_.unlock();
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| 78 |         }
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| 79 |     }
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| 80 |     if(deleteIt)
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| 81 |         delete tg_;
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| 82 |         
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| 83 |     tg_ = rhs.tg_; // Copy in RHS contents.
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| 84 |     if(tg_ != 0)
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| 85 |     {
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| 86 |         tg_ -> refMutex_.lock();
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| 87 |         ++tg_ -> _jtc_refCount_; // Boost reference count.
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| 88 |         tg_ -> refMutex_.unlock();
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| 89 |     }
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| 90 | 
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| 91 |     return *this;
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| 92 | }
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| 93 | 
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| 94 | template <class T> void
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| 95 | JTCHandleT<T>::_jtc_deref()
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| 96 | {
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| 97 |     if (tg_ != 0)
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| 98 |     {
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| 99 |         bool deleteIt = false;
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| 100 |         {
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| 101 |             tg_ -> refMutex_.lock();
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| 102 |             if (--tg_ -> _jtc_refCount_ == 0)
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| 103 |                 deleteIt = true;
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| 104 |             tg_ -> refMutex_.unlock();
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| 105 |         }
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| 106 |         if(deleteIt)
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| 107 |             delete tg_;
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| 108 |         tg_ = 0;
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| 109 |     }
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| 110 | }
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| 111 | 
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| 112 | #endif
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