cppu/source/uno/IdentityMapping.cxx

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  27
  28 #include "IdentityMapping.hxx"
  29
  30 #include "uno/mapping.h"
  31 #include "uno/environment.hxx"
  32
  33 #include "osl/interlck.h"
  34
  35
  36 using namespace ::com::sun::star;
  37
  38 struct IdentityMapping : public uno_Mapping
  39 {
  40     sal_Int32        m_nRef;
  41     uno::Environment m_env;
  42
  43     IdentityMapping(uno::Environment const & rEnv);
  44 };
  45
  46 extern "C"
  47 {
  48
  49 static void SAL_CALL s_free(uno_Mapping * pMapping) SAL_THROW(())
  50 {
  51     delete static_cast<IdentityMapping *>(pMapping);
  52 }
  53
  54 static void SAL_CALL s_acquire(uno_Mapping * pMapping) SAL_THROW(())
  55 {
  56     static rtl::OUString s_purpose;
  57
  58     if (1 == ::osl_incrementInterlockedCount(&static_cast<IdentityMapping *>(pMapping)->m_nRef))
  59     {
  60         uno_registerMapping(
  61             &pMapping,
  62             s_free,
  63             static_cast<IdentityMapping *>(pMapping)->m_env.get(),
  64             static_cast<IdentityMapping *>(pMapping)->m_env.get(),
  65             s_purpose.pData);
  66     }
  67 }
  68
  69 static void SAL_CALL s_release(uno_Mapping * pMapping) SAL_THROW(())
  70 {
  71     if (!::osl_decrementInterlockedCount(&static_cast<IdentityMapping *>(pMapping )->m_nRef))
  72         uno_revokeMapping(pMapping);
  73 }
  74
  75 static void SAL_CALL s_mapInterface(uno_Mapping                       * pMapping,
  76                                     void                             ** ppOut,
  77                                     void                              * pInterface,
  78                                     struct _typelib_InterfaceTypeDescription * /*pInterfaceTypeDescr*/)
  79     SAL_THROW(())
  80 {
  81     *ppOut = pInterface;
  82
  83     if (pInterface)
  84     {
  85         IdentityMapping * that = static_cast<IdentityMapping *>(pMapping);
  86
  87         (that->m_env.get()->pExtEnv->acquireInterface)(that->m_env.get()->pExtEnv, pInterface);
  88     }
  89 }
  90 }
  91
  92
  93 IdentityMapping::IdentityMapping(uno::Environment const & rEnv)
  94     : m_nRef(0),
  95       m_env(rEnv)
  96 {
  97     uno_Mapping::acquire        = s_acquire;
  98     uno_Mapping::release        = s_release;
  99     uno_Mapping::mapInterface   = s_mapInterface;
 100 }
 101
 102
 103 uno_Mapping * createIdentityMapping(uno::Environment const & rEnv) SAL_THROW(())
 104 {
 105     return new IdentityMapping(rEnv);
 106 }