blocxx
DLLSharedLibrary.cpp
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2* Copyright (C) 2005, Vintela, Inc. All rights reserved.
3* Copyright (C) 2006, Novell, Inc. All rights reserved.
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32
33
39#include "blocxx/BLOCXX_config.h"
40
41#if defined(BLOCXX_USE_DLL)
43#include "blocxx/Format.hpp"
44#include "blocxx/Mutex.hpp"
45#include "blocxx/MutexLock.hpp"
46
47#include <iostream>
48
49namespace
50{
51typedef void (__stdcall *DllEntry_t)(void);
52}
53
54namespace BLOCXX_NAMESPACE
55{
56
57Mutex DLLSharedLibrary_guard;
58
60DLLSharedLibrary::DLLSharedLibrary(HINSTANCE libhandle, const String& libName)
61 : SharedLibrary(), m_libhandle(libhandle), m_libName(libName)
62{
63 DllEntry_t ensureInit;
64
65 if( getFunctionPointer("DllEnsureInit", ensureInit) )
66 ensureInit();
67}
69DLLSharedLibrary::~DLLSharedLibrary()
70{
71 DllEntry_t forceTerm;
72
73 if( getFunctionPointer("DllForceTerm", forceTerm) )
74 forceTerm();
75
76 ::FreeLibrary(m_libhandle);
77}
79bool
80DLLSharedLibrary::doGetFunctionPointer(const String& functionName,
81 void** fp) const
82{
83 MutexLock l(DLLSharedLibrary_guard);
84
85 *fp = (void*) ::GetProcAddress(m_libhandle, functionName.c_str());
86
87 if (!*fp)
88 {
89 return false;
90 }
91
92 return true;
93}
94
95} // end namespace BLOCXX_NAMESPACE
96
97#endif
98
Taken from RFC 1321.