DLLSharedLibrary.cpp

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#include "blocxx/BLOCXX_config.h"
 
#if defined(BLOCXX_USE_DLL)
#include "blocxx/DLLSharedLibrary.hpp"
#include "blocxx/Format.hpp"
#include "blocxx/Mutex.hpp"
#include "blocxx/MutexLock.hpp"
 
#include <iostream>
 
namespace
{
typedef void (__stdcall *DllEntry_t)(void);
}
 
namespace BLOCXX_NAMESPACE
{
 
Mutex DLLSharedLibrary_guard;
 
DLLSharedLibrary::DLLSharedLibrary(HINSTANCE libhandle, const String& libName)
   : SharedLibrary(), m_libhandle(libhandle), m_libName(libName)
{
   DllEntry_t ensureInit;
 
   if( getFunctionPointer("DllEnsureInit", ensureInit) )
      ensureInit();
}
DLLSharedLibrary::~DLLSharedLibrary()
{
   DllEntry_t forceTerm;
 
   if( getFunctionPointer("DllForceTerm", forceTerm) )
      forceTerm();
 
   ::FreeLibrary(m_libhandle);
}
bool
DLLSharedLibrary::doGetFunctionPointer(const String& functionName,
   void** fp) const
{
   MutexLock l(DLLSharedLibrary_guard);
 
   *fp = (void*) ::GetProcAddress(m_libhandle, functionName.c_str());
     
   if (!*fp)
   {
      return false;
   }
 
   return true;
}
 
} // end namespace BLOCXX_NAMESPACE
 
#endif