ucb/workben/cachemap/cachemapobject3.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_ucb.hxx"
  33 #include "cachemapobject3.hxx"
  34 #include "osl/diagnose.h"
  35 #include "osl/interlck.h"
  36 #include "osl/mutex.hxx"
  37 #include "rtl/ref.hxx"
  38 #include "rtl/ustring.hxx"
  39
  40 #ifndef INCLUDED_MEMORY
  41 #include <memory>
  42 #define INCLUDED_MEMORY
  43 #endif
  44
  45 using ucb::cachemap::Object3;
  46 using ucb::cachemap::ObjectContainer3;
  47
  48 inline
  49 Object3::Object3(rtl::Reference< ObjectContainer3 > const & rContainer):
  50     m_xContainer(rContainer),
  51     m_nRefCount(0)
  52 {
  53     OSL_ASSERT(m_xContainer.is());
  54 }
  55
  56 inline Object3::~Object3() SAL_THROW(())
  57 {}
  58
  59 void Object3::release() SAL_THROW(())
  60 {
  61     if (osl_decrementInterlockedCount(&m_nRefCount) == 0)
  62     {
  63         m_xContainer->releaseElement(this);
  64         delete this;
  65     }
  66 }
  67
  68 void ObjectContainer3::releaseElement(Object3 * pElement) SAL_THROW(())
  69 {
  70     OSL_ASSERT(pElement);
  71     osl::MutexGuard aGuard(m_aMutex);
  72     if (pElement->m_aContainerIt != m_aMap.end())
  73         m_aMap.erase(pElement->m_aContainerIt);
  74 }
  75
  76 ObjectContainer3::ObjectContainer3()
  77 {}
  78
  79 ObjectContainer3::~ObjectContainer3() SAL_THROW(())
  80 {}
  81
  82 rtl::Reference< Object3 > ObjectContainer3::get(rtl::OUString const & rKey)
  83 {
  84     osl::MutexGuard aGuard(m_aMutex);
  85     Map::iterator aIt(m_aMap.find(rKey));
  86     if (aIt == m_aMap.end())
  87     {
  88         std::auto_ptr< Object3 > xElement(new Object3(this));
  89         aIt = m_aMap.insert(Map::value_type(rKey, xElement.get())).first;
  90         aIt->second->m_aContainerIt = aIt;
  91         xElement.release();
  92         return aIt->second;
  93     }
  94     else if (osl_incrementInterlockedCount(&aIt->second->m_nRefCount) > 1)
  95     {
  96         rtl::Reference< Object3 > xElement(aIt->second);
  97         osl_decrementInterlockedCount(&aIt->second->m_nRefCount);
  98         return xElement;
  99     }
 100     else
 101     {
 102         osl_decrementInterlockedCount(&aIt->second->m_nRefCount);
 103         aIt->second->m_aContainerIt = m_aMap.end();
 104         aIt->second = new Object3(this);
 105         aIt->second->m_aContainerIt = aIt;
 106         return aIt->second;
 107     }
 108 }