xref: /trunk/main/cppu/source/uno/IdentityMapping.cxx (revision cdf0e10c4e3984b49a9502b011690b615761d4a3)
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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 }
107