dbaccess/source/core/misc/apitools.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_dbaccess.hxx"
  33
  34 #ifndef _DBASHARED_APITOOLS_HXX_
  35 #include "apitools.hxx"
  36 #endif
  37 #ifndef DBACCESS_SHARED_DBASTRINGS_HRC
  38 #include "dbastrings.hrc"
  39 #endif
  40 #ifndef _CPPUHELPER_TYPEPROVIDER_HXX_
  41 #include <cppuhelper/typeprovider.hxx>
  42 #endif
  43 #include <com/sun/star/lang/XServiceInfo.hpp>
  44 #ifndef _OSL_DIAGNOSE_H_
  45 #include <osl/diagnose.h>
  46 #endif
  47 #ifndef _TOOLS_DEBUG_HXX
  48 #include <tools/debug.hxx>
  49 #endif
  50
  51 using namespace ::com::sun::star::uno;
  52 using namespace ::com::sun::star::lang;
  53 using namespace cppu;
  54 using namespace osl;
  55 using namespace dbaccess;
  56
  57 //==================================================================================
  58 //= various helper functions
  59 //==================================================================================
  60 //============================================================
  61 //= OSubComponent
  62 //============================================================
  63 DBG_NAME(OSubComponent)
  64 //--------------------------------------------------------------------------
  65 OSubComponent::OSubComponent(Mutex& _rMutex, const Reference< XInterface > & xParent)
  66               :OComponentHelper(_rMutex)
  67               ,m_xParent(xParent)
  68 {
  69     DBG_CTOR(OSubComponent,NULL);
  70
  71 }
  72 // -----------------------------------------------------------------------------
  73 OSubComponent::~OSubComponent()
  74 {
  75     m_xParent = NULL;
  76
  77     DBG_DTOR(OSubComponent,NULL);
  78 }
  79
  80 // com::sun::star::lang::XTypeProvider
  81 //--------------------------------------------------------------------------
  82 Sequence< Type > OSubComponent::getTypes() throw (RuntimeException)
  83 {
  84     OTypeCollection aTypes(::getCppuType( (const Reference< XComponent > *)0 ),
  85                            ::getCppuType( (const Reference< XTypeProvider > *)0 ),
  86                            ::getCppuType( (const Reference< XWeak > *)0 ));
  87
  88     return aTypes.getTypes();
  89 }
  90
  91 // XInterface
  92 //--------------------------------------------------------------------------
  93 void OSubComponent::acquire() throw ( )
  94 {
  95     OComponentHelper::acquire();
  96 }
  97
  98 //--------------------------------------------------------------------------
  99 void OSubComponent::release() throw ( )
 100 {
 101     Reference< XInterface > x( xDelegator );
 102     if (! x.is())
 103     {
 104         if (osl_decrementInterlockedCount( &m_refCount ) == 0 && m_refCount == 0 )
 105         {
 106             OSL_ENSURE( m_refCount == 0, "OSubComponent::release: why the hell is this false!" );
 107             if (! rBHelper.bDisposed)
 108             {
 109                 Reference< XInterface > xHoldAlive( *this );
 110                 // remember the parent
 111                 Reference< XInterface > xParent;
 112                 {
 113                     MutexGuard aGuard( rBHelper.rMutex );
 114                     xParent = m_xParent;
 115                     m_xParent = NULL;
 116                 }
 117
 118                 OSL_ENSURE( m_refCount == 1, "OSubComponent::release: invalid ref count!" );
 119
 120                 // First dispose
 121                 dispose();
 122
 123                 // only the alive ref holds the object
 124                 OSL_ENSURE( m_refCount == 1, "OSubComponent::release: invalid ref count!" );
 125
 126                 // release the parent in the ~
 127                 if (xParent.is())
 128                 {
 129                     MutexGuard aGuard( rBHelper.rMutex );
 130                     m_xParent = xParent;
 131                 }
 132
 133                 // destroy the object if xHoldAlive decrement the refcount to 0
 134                 return;
 135             }
 136         }
 137         // restore the reference count
 138         osl_incrementInterlockedCount( &m_refCount );
 139     }
 140
 141     // as we cover the job of the componenthelper we use the ...
 142     OWeakAggObject::release();
 143 }
 144
 145 //--------------------------------------------------------------------------
 146 Any OSubComponent::queryInterface( const Type & rType ) throw(RuntimeException)
 147 {
 148     Any aReturn;
 149     if (!rType.equals(::getCppuType(static_cast< Reference< XAggregation >* >(NULL))))
 150         aReturn = OComponentHelper::queryInterface(rType);
 151
 152     return aReturn;
 153 }
 154
 155