include/comphelper/guarding.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   9  * This file incorporates work covered by the following license notice:
  10  *
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  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
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  19
  20 #ifndef _COMPHELPER_GUARDING_HXX_
  21 #define _COMPHELPER_GUARDING_HXX_
  22
  23 #include <osl/mutex.hxx>
  24
  25 //.........................................................................
  26 namespace comphelper
  27 {
  28 //.........................................................................
  29
  30 // ===================================================================================================
  31 // = class MutexRelease -
  32 // ===================================================================================================
  33
  34 /** opposite of OGuard :)
  35     (a mutex is released within the constructor and acquired within the desctructor)
  36     use only when you're sure the mutex is acquired !
  37 */
  38 template <class MUTEX>
  39 class ORelease
  40 {
  41     MUTEX&  m_rMutex;
  42
  43 public:
  44     ORelease(MUTEX& _rMutex) : m_rMutex(_rMutex) { _rMutex.release(); }
  45     ~ORelease() { m_rMutex.acquire(); }
  46 };
  47
  48 typedef ORelease< ::osl::Mutex >    MutexRelease;
  49
  50 //.........................................................................
  51 }   // namespace comphelper
  52 //.........................................................................
  53
  54 #endif // _COMPHELPER_GUARDING_HXX_
  55
  56 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */