/src/libreoffice/cppu/source/uno/IdentityMapping.cxx
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1 | | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
2 | | /* |
3 | | * This file is part of the LibreOffice project. |
4 | | * |
5 | | * This Source Code Form is subject to the terms of the Mozilla Public |
6 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
7 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. |
8 | | * |
9 | | * This file incorporates work covered by the following license notice: |
10 | | * |
11 | | * Licensed to the Apache Software Foundation (ASF) under one or more |
12 | | * contributor license agreements. See the NOTICE file distributed |
13 | | * with this work for additional information regarding copyright |
14 | | * ownership. The ASF licenses this file to you under the Apache |
15 | | * License, Version 2.0 (the "License"); you may not use this file |
16 | | * except in compliance with the License. You may obtain a copy of |
17 | | * the License at http://www.apache.org/licenses/LICENSE-2.0 . |
18 | | */ |
19 | | |
20 | | #include "IdentityMapping.hxx" |
21 | | |
22 | | #include <typelib/typedescription.h> |
23 | | #include <uno/mapping.h> |
24 | | #include <uno/environment.hxx> |
25 | | #include <utility> |
26 | | |
27 | | #include <osl/interlck.h> |
28 | | |
29 | | |
30 | | using namespace ::com::sun::star; |
31 | | |
32 | | namespace { |
33 | | |
34 | | struct IdentityMapping : public uno_Mapping |
35 | | { |
36 | | sal_Int32 m_nRef; |
37 | | uno::Environment m_env; |
38 | | |
39 | | explicit IdentityMapping(uno::Environment aEnv); |
40 | | }; |
41 | | |
42 | | } |
43 | | |
44 | | extern "C" |
45 | | { |
46 | | |
47 | | static void s_free(uno_Mapping * pMapping) |
48 | 303 | { |
49 | 303 | delete static_cast<IdentityMapping *>(pMapping); |
50 | 303 | } |
51 | | |
52 | | static void s_acquire(uno_Mapping * pMapping) |
53 | 808 | { |
54 | 808 | static OUString s_purpose; |
55 | | |
56 | 808 | if (1 == osl_atomic_increment(&static_cast<IdentityMapping *>(pMapping)->m_nRef)) |
57 | 303 | { |
58 | 303 | uno_registerMapping( |
59 | 303 | &pMapping, |
60 | 303 | s_free, |
61 | 303 | static_cast<IdentityMapping *>(pMapping)->m_env.get(), |
62 | 303 | static_cast<IdentityMapping *>(pMapping)->m_env.get(), |
63 | 303 | s_purpose.pData); |
64 | 303 | } |
65 | 808 | } |
66 | | |
67 | | static void s_release(uno_Mapping * pMapping) |
68 | 808 | { |
69 | 808 | if (!osl_atomic_decrement(&static_cast<IdentityMapping *>(pMapping )->m_nRef)) |
70 | 303 | uno_revokeMapping(pMapping); |
71 | 808 | } |
72 | | |
73 | | static void s_mapInterface(uno_Mapping * pMapping, |
74 | | void ** ppOut, |
75 | | void * pInterface, |
76 | | SAL_UNUSED_PARAMETER typelib_InterfaceTypeDescription * /*pInterfaceTypeDescr*/) |
77 | 3.73k | { |
78 | 3.73k | *ppOut = pInterface; |
79 | | |
80 | 3.73k | if (pInterface) |
81 | 3.63k | { |
82 | 3.63k | IdentityMapping * that = static_cast<IdentityMapping *>(pMapping); |
83 | | |
84 | 3.63k | (that->m_env.get()->pExtEnv->acquireInterface)(that->m_env.get()->pExtEnv, pInterface); |
85 | 3.63k | } |
86 | 3.73k | } |
87 | | } |
88 | | |
89 | | |
90 | | IdentityMapping::IdentityMapping(uno::Environment aEnv) |
91 | 303 | : m_nRef(0), |
92 | 303 | m_env(std::move(aEnv)) |
93 | 303 | { |
94 | 303 | uno_Mapping::acquire = s_acquire; |
95 | 303 | uno_Mapping::release = s_release; |
96 | 303 | uno_Mapping::mapInterface = s_mapInterface; |
97 | 303 | } |
98 | | |
99 | | |
100 | | uno_Mapping * createIdentityMapping(uno::Environment const & rEnv) |
101 | 303 | { |
102 | 303 | return new IdentityMapping(rEnv); |
103 | 303 | } |
104 | | |
105 | | /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |