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 #ifndef _LINK_HXX
24 #define _LINK_HXX
25
26 #include "tools/toolsdllapi.h"
27 #include "sal/config.h"
28 #include "sal/types.h"
29 #include <tools/solar.h>
30
31 // ---------------
32 // - Link-Makros -
33 // ---------------
34
35 typedef long (*PSTUB)( void*, void* );
36
37 #define DECL_LINK( Method, ArgType ) \
38 long Method( ArgType ); \
39 static long LinkStub##Method( void* pThis, void* )
40
41 #define DECL_STATIC_LINK( Class, Method, ArgType ) \
42 static long Method( Class*, ArgType )
43
44 #define DECL_DLLPRIVATE_LINK(Method, ArgType) \
45 SAL_DLLPRIVATE long Method(ArgType); \
46 SAL_DLLPRIVATE static long LinkStub##Method(void * pThis, void *)
47
48 #define DECL_DLLPRIVATE_STATIC_LINK(Class, Method, ArgType) \
49 SAL_DLLPRIVATE static long Method(Class *, ArgType)
50
51 #define IMPL_METHOD( Class, Method, ArgType, ArgName ) \
52 long Class::Method( ArgType ArgName )
53
54 #define IMPL_STUB(Class, Method, ArgType) \
55 long __EXPORT Class::LinkStub##Method( void* pThis, void* pCaller) \
56 { \
57 return ((Class*)pThis )->Method( (ArgType)pCaller ); \
58 }
59
60 #define IMPL_STATIC_LINK( Class, Method, ArgType, ArgName ) \
61 long __EXPORT Class::Method( Class* pThis, ArgType ArgName )
62
63 #define IMPL_STATIC_LINK_NOINSTANCE( Class, Method, ArgType, ArgName ) \
64 long __EXPORT Class::Method( Class*, ArgType ArgName )
65
66 #define LINK( Inst, Class, Member ) \
67 Link( (Class*)Inst, (PSTUB)&Class::LinkStub##Member )
68
69 #define STATIC_LINK( Inst, Class, Member ) \
70 Link( (Class*)Inst, (PSTUB)&Class::Member )
71
72 #define IMPL_LINK( Class, Method, ArgType, ArgName ) \
73 IMPL_STUB( Class, Method, ArgType ) \
74 long Class::Method( ArgType ArgName )
75
76 #if defined GCC && defined NO_OPTIMIZE
77 #define IMPL_LINK_INLINE_START( Class, Method, ArgType, ArgName ) \
78 IMPL_LINK( Class, Method, ArgType, ArgName )
79
80 #define IMPL_LINK_INLINE_END( Class, Method, ArgType, ArgName )
81 #else
82 #define IMPL_LINK_INLINE_START( Class, Method, ArgType, ArgName ) \
83 inline long Class::Method( ArgType ArgName )
84
85 #define IMPL_LINK_INLINE_END( Class, Method, ArgType, ArgName ) \
86 IMPL_STUB( Class, Method, ArgType )
87 #endif
88
89 #define IMPL_LINK_INLINE( Class, Method, ArgType, ArgName, Body ) \
90 long Class::Method( ArgType ArgName ) \
91 Body \
92 IMPL_STUB( Class, Method, ArgType )
93
94 #define EMPTYARG
95
96 // --------
97 // - Link -
98 // --------
99
100 class TOOLS_DLLPUBLIC Link
101 {
102 void* pInst;
103 PSTUB pFunc;
104
105 public:
106 Link();
107 Link( void* pLinkHdl, PSTUB pMemFunc );
108
109 long Call( void* pCaller ) const;
110
111 sal_Bool IsSet() const;
112 sal_Bool operator !() const;
113
114 sal_Bool operator==( const Link& rLink ) const;
operator !=(const Link & rLink) const115 sal_Bool operator!=( const Link& rLink ) const
116 { return !(Link::operator==( rLink )); }
operator <(const Link & rLink) const117 sal_Bool operator<( const Link& rLink ) const
118 { return ((sal_uIntPtr)rLink.pFunc < (sal_uIntPtr)pFunc); }
119 };
120
Link()121 inline Link::Link()
122 {
123 pInst = 0;
124 pFunc = 0;
125 }
126
Link(void * pLinkHdl,PSTUB pMemFunc)127 inline Link::Link( void* pLinkHdl, PSTUB pMemFunc )
128 {
129 pInst = pLinkHdl;
130 pFunc = pMemFunc;
131 }
132
Call(void * pCaller) const133 inline long Link::Call(void *pCaller) const
134 {
135 return pFunc ? (*pFunc)(pInst, pCaller) : 0;
136 }
137
IsSet() const138 inline sal_Bool Link::IsSet() const
139 {
140 if ( pFunc )
141 return sal_True;
142 else
143 return sal_False;
144 }
145
operator !() const146 inline sal_Bool Link::operator !() const
147 {
148 if ( !pFunc )
149 return sal_True;
150 else
151 return sal_False;
152 }
153
154 #endif // _LINK_HXX
155