#include <cpPlugins/OS/DLLManager.h>

#ifdef cpPlugins_SYS_WINDOWS
#  include <Windows.h>
#else // cpPlugins_SYS_WINDOWS
#  include <dlfcn.h>
#endif // cpPlugins_SYS_WINDOWS

// -------------------------------------------------------------------------
void* cpPlugins::OS::DLLManager::
Load( const std::string& fname, std::string& error )
{
  void* hnd = NULL;
#ifdef cpPlugins_SYS_WINDOWS
  hnd = ::LoadLibraryA( fname.c_str( ) );
#else // cpPlugins_SYS_WINDOWS
  hnd = dlopen( fname.c_str( ), RTLD_LAZY | RTLD_GLOBAL );
  if( hnd == NULL )
    error = dlerror( );
  else
    dlerror( );
#endif // cpPlugins_SYS_WINDOWS
  return( hnd );
}

// -------------------------------------------------------------------------
void cpPlugins::OS::DLLManager::
UnLoad( void* hnd )
{
#ifdef cpPlugins_SYS_WINDOWS
  ::FreeLibrary( ( HMODULE )hnd );
#else // cpPlugins_SYS_WINDOWS
  dlclose( hnd );
#endif // cpPlugins_SYS_WINDOWS
}

// -------------------------------------------------------------------------
void* cpPlugins::OS::DLLManager::
GetFunctionHandle( void* hnd, const std::string& function )
{
  void* f = NULL;
  if( hnd != NULL )
  {
#ifdef cpPlugins_SYS_WINDOWS
    f = ::GetProcAddress( ( HMODULE )hnd, function.c_str( ) );
#else // cpPlugins_SYS_WINDOWS
    f = dlsym( hnd, function.c_str( ) );
#endif // cpPlugins_SYS_WINDOWS
  } // fi
  return( f );
}

// eof - $RCSfile$