package/inc/mutexholder.hxx

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  28
  29 #ifndef __MUTEXHOLDER_HXX_
  30 #define __MUTEXHOLDER_HXX_
  31
  32 #include <osl/mutex.hxx>
  33
  34 class SotMutexHolder
  35 {
  36     ::osl::Mutex m_aMutex;
  37     sal_Int32    m_nRefCount;
  38
  39     public:
  40     SotMutexHolder() : m_nRefCount( 0 ) {}
  41
  42     void AddRef()
  43     {
  44         m_nRefCount++;
  45     }
  46
  47     void ReleaseRef()
  48     {
  49         if ( !--m_nRefCount )
  50             delete this;
  51     }
  52
  53     ::osl::Mutex& GetMutex() { return m_aMutex; }
  54 };
  55
  56 class SotMutexHolderRef
  57 {
  58     SotMutexHolder* m_pHolder;
  59
  60 public:
  61     SotMutexHolderRef()
  62     : m_pHolder( NULL )
  63     {}
  64
  65     SotMutexHolderRef( SotMutexHolder* pHolder )
  66     : m_pHolder( pHolder )
  67     {
  68         if ( m_pHolder )
  69             m_pHolder->AddRef();
  70     }
  71
  72     SotMutexHolderRef( const SotMutexHolderRef& rRef )
  73     : m_pHolder( rRef.m_pHolder )
  74     {
  75         if ( m_pHolder )
  76             m_pHolder->AddRef();
  77     }
  78
  79     ~SotMutexHolderRef()
  80     {
  81         if ( m_pHolder )
  82             m_pHolder->ReleaseRef();
  83     }
  84
  85     SotMutexHolderRef& operator =( const SotMutexHolderRef& rRef )
  86     {
  87         if ( m_pHolder )
  88             m_pHolder->ReleaseRef();
  89
  90         m_pHolder = rRef.m_pHolder;
  91
  92         if ( m_pHolder )
  93             m_pHolder->AddRef();
  94
  95         return *this;
  96     }
  97
  98     SotMutexHolderRef& operator =( SotMutexHolder* pHolder )
  99     {
 100         if ( m_pHolder )
 101             m_pHolder->ReleaseRef();
 102
 103         m_pHolder = pHolder;
 104
 105         if ( m_pHolder )
 106             m_pHolder->AddRef();
 107         return *this;
 108     }
 109
 110     SotMutexHolder* operator ->() const
 111     {
 112         return m_pHolder;
 113     }
 114
 115     SotMutexHolder& operator *() const
 116     {
 117         return *m_pHolder;
 118     }
 119
 120     operator SotMutexHolder*() const
 121     {
 122         return m_pHolder;
 123     }
 124
 125     sal_Bool Is() const
 126     {
 127         return m_pHolder != NULL;
 128     }
 129 };
 130
 131 #endif
 132
 133 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */