1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
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7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
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11 * http://www.apache.org/licenses/LICENSE-2.0
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20 *************************************************************/
21
22
23
24 #include <salhelper/dynload.hxx>
25 #include <rtl/ustrbuf.hxx>
26
27 namespace salhelper
28 {
29
30 typedef void* (SAL_CALL *ApiInitFunction) (void);
31
ORealDynamicLoader(ORealDynamicLoader ** ppSetToZeroInDestructor_,const rtl::OUString & moduleName,const rtl::OUString & initFunction,void * pApi,oslModule pModule)32 ORealDynamicLoader::ORealDynamicLoader(ORealDynamicLoader ** ppSetToZeroInDestructor_,
33 const rtl::OUString& moduleName,
34 const rtl::OUString& initFunction,
35 void* pApi,
36 oslModule pModule)
37 : m_pApi(pApi)
38 , m_refCount(1)
39 , m_pModule(pModule)
40 , m_strModuleName(moduleName)
41 , m_strInitFunction(initFunction)
42 , ppSetToZeroInDestructor( ppSetToZeroInDestructor_ )
43 {
44 }
45
newInstance(ORealDynamicLoader ** ppSetToZeroInDestructor,const rtl::OUString & moduleName,const rtl::OUString & initFunction)46 ORealDynamicLoader* ORealDynamicLoader::newInstance(ORealDynamicLoader ** ppSetToZeroInDestructor,
47 const rtl::OUString& moduleName,
48 const rtl::OUString& initFunction)
49 {
50 ApiInitFunction initFunc;
51 oslModule pModule = osl_loadModule(moduleName.pData, SAL_LOADMODULE_DEFAULT);
52
53 if ( !pModule )
54 {
55 return NULL;
56 }
57
58 initFunc = (ApiInitFunction)osl_getFunctionSymbol(
59 pModule, initFunction.pData);
60
61 if ( !initFunc )
62 {
63 osl_unloadModule(pModule);
64 return NULL;
65 }
66
67 return(new ORealDynamicLoader(ppSetToZeroInDestructor, moduleName,
68 initFunction,
69 initFunc(),
70 pModule));
71 }
72
~ORealDynamicLoader()73 ORealDynamicLoader::~ORealDynamicLoader()
74 {
75 // set the address to zero
76 if( ppSetToZeroInDestructor )
77 *ppSetToZeroInDestructor = 0;
78
79 if (m_pModule)
80 {
81 osl_unloadModule(m_pModule);
82 m_pModule = NULL;
83 }
84 }
85
acquire()86 sal_uInt32 ORealDynamicLoader::acquire()
87 {
88 return ++m_refCount;
89 }
90
release()91 sal_uInt32 ORealDynamicLoader::release()
92 {
93 sal_uInt32 nRet = --m_refCount;
94 if( nRet == 0 )
95 delete this;
96 return nRet;
97 }
98
99
getApi() const100 void* ORealDynamicLoader::getApi() const
101 {
102 return m_pApi;
103 }
104
105 } // namespace salhelper
106
107