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mutex.hxx
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19 
20 #ifndef INCLUDED_OSL_MUTEX_HXX
21 #define INCLUDED_OSL_MUTEX_HXX
22 
23 #include <osl/mutex.h>
24 
25 
26 namespace osl
27 {
31 
32  public:
38  {
39  mutex = osl_createMutex();
40  }
41 
46  {
47  osl_destroyMutex(mutex);
48  }
49 
54  bool acquire()
55  {
56  return osl_acquireMutex(mutex);
57  }
58 
63  bool tryToAcquire()
64  {
65  return osl_tryToAcquireMutex(mutex);
66  }
67 
72  bool release()
73  {
74  return osl_releaseMutex(mutex);
75  }
76 
83  static Mutex * getGlobalMutex()
84  {
85  return reinterpret_cast<Mutex *>(osl_getGlobalMutex());
86  }
87 
88  private:
89  oslMutex mutex;
90 
98 
102  Mutex& operator= (const Mutex&) SAL_DELETED_FUNCTION;
103  };
104 
107  template<class T>
108  class Guard
109  {
110  private:
111  Guard( const Guard& ) SAL_DELETED_FUNCTION;
112  const Guard& operator = ( const Guard& ) SAL_DELETED_FUNCTION;
113 
114  protected:
115  T * pT;
116  public:
117 
120  Guard(T * pT_) : pT(pT_)
121  {
122  pT->acquire();
123  }
124 
127  Guard(T & t) : pT(&t)
128  {
129  pT->acquire();
130  }
131 
134  {
135  pT->release();
136  }
137  };
138 
141  template<class T>
143  {
144  private:
146  const ClearableGuard& operator = ( const ClearableGuard& )
148  protected:
149  T * pT;
150  public:
151 
154  ClearableGuard(T * pT_) : pT(pT_)
155  {
156  pT->acquire();
157  }
158 
161  ClearableGuard(T & t) : pT(&t)
162  {
163  pT->acquire();
164  }
165 
169  {
170  if (pT)
171  pT->release();
172  }
173 
176  void clear()
177  {
178  if(pT)
179  {
180  pT->release();
181  pT = NULL;
182  }
183  }
184  };
185 
188  template< class T >
189  class ResettableGuard : public ClearableGuard< T >
190  {
191  private:
193  void operator =(ResettableGuard &) SAL_DELETED_FUNCTION;
194 
195  protected:
197  public:
200  ResettableGuard( T* pT_ ) :
201  ClearableGuard<T>( pT_ ),
202  pResetT( pT_ )
203  {}
204 
207  ResettableGuard( T& rT ) :
208  ClearableGuard<T>( rT ),
209  pResetT( &rT )
210  {}
211 
214  void reset()
215  {
216  if( pResetT )
217  {
218  this->pT = pResetT;
219  this->pT->acquire();
220  }
221  }
222  };
223 
227 }
228 
229 #endif // INCLUDED_OSL_MUTEX_HXX
230 
231 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */