1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 #include "IdentityMapping.hxx"
25
26 #include "uno/mapping.h"
27 #include "uno/environment.hxx"
28
29 #include "osl/interlck.h"
30
31
32 using namespace ::com::sun::star;
33
34 struct IdentityMapping : public uno_Mapping
35 {
36 sal_Int32 m_nRef;
37 uno::Environment m_env;
38
39 IdentityMapping(uno::Environment const & rEnv);
40 };
41
42 extern "C"
43 {
44
s_free(uno_Mapping * pMapping)45 static void SAL_CALL s_free(uno_Mapping * pMapping) SAL_THROW(())
46 {
47 delete static_cast<IdentityMapping *>(pMapping);
48 }
49
s_acquire(uno_Mapping * pMapping)50 static void SAL_CALL s_acquire(uno_Mapping * pMapping) SAL_THROW(())
51 {
52 static rtl::OUString s_purpose;
53
54 if (1 == ::osl_incrementInterlockedCount(&static_cast<IdentityMapping *>(pMapping)->m_nRef))
55 {
56 uno_registerMapping(
57 &pMapping,
58 s_free,
59 static_cast<IdentityMapping *>(pMapping)->m_env.get(),
60 static_cast<IdentityMapping *>(pMapping)->m_env.get(),
61 s_purpose.pData);
62 }
63 }
64
s_release(uno_Mapping * pMapping)65 static void SAL_CALL s_release(uno_Mapping * pMapping) SAL_THROW(())
66 {
67 if (!::osl_decrementInterlockedCount(&static_cast<IdentityMapping *>(pMapping )->m_nRef))
68 uno_revokeMapping(pMapping);
69 }
70
s_mapInterface(uno_Mapping * pMapping,void ** ppOut,void * pInterface,struct _typelib_InterfaceTypeDescription *)71 static void SAL_CALL s_mapInterface(uno_Mapping * pMapping,
72 void ** ppOut,
73 void * pInterface,
74 struct _typelib_InterfaceTypeDescription * /*pInterfaceTypeDescr*/)
75 SAL_THROW(())
76 {
77 *ppOut = pInterface;
78
79 if (pInterface)
80 {
81 IdentityMapping * that = static_cast<IdentityMapping *>(pMapping);
82
83 (that->m_env.get()->pExtEnv->acquireInterface)(that->m_env.get()->pExtEnv, pInterface);
84 }
85 }
86 }
87
88
IdentityMapping(uno::Environment const & rEnv)89 IdentityMapping::IdentityMapping(uno::Environment const & rEnv)
90 : m_nRef(0),
91 m_env(rEnv)
92 {
93 uno_Mapping::acquire = s_acquire;
94 uno_Mapping::release = s_release;
95 uno_Mapping::mapInterface = s_mapInterface;
96 }
97
98
createIdentityMapping(uno::Environment const & rEnv)99 uno_Mapping * createIdentityMapping(uno::Environment const & rEnv) SAL_THROW(())
100 {
101 return new IdentityMapping(rEnv);
102 }
103