public static void LoadUnmanagedLibrary(string fileName)
{
#if USESAFELIB
if (m_hLibrary == null)
{
if (PrologCLR.IsLinux)
{
return;
m_hLibrary = NativeMethodsLinux.LoadLibrary("/lib64/pl-6.0.3/lib/x86_64/libswipl.so");
if (m_hLibrary.IsInvalid)
{
PrologCLR.ConsoleTrace("IsInvalid LoadUnmanagedLibrary " + fileName);
// int hr = Marshal.GetHRForLastWin32Error();
// Marshal.ThrowExceptionForHR(hr);
}
}
else
{
m_hLibrary = NativeMethodsWindows.LoadLibrary(fileName);
if (m_hLibrary.IsInvalid)
{
int hr = Marshal.GetHRForLastWin32Error();
Marshal.ThrowExceptionForHR(hr);
}
}
}
#endif
}
protected override bool ReleaseHandle()
{
if (PrologCLR.IsLinux)
{
return(NativeMethodsLinux.FreeLibrary(handle));
}
else
{
return(NativeMethodsWindows.FreeLibrary(handle));
}
}
public static void SetStreamFunction(Streams.PlStreamType streamType, StreamsFunction functionType, Delegate function)
{
//int size_of_IOSTREAM = 136;
PrologCLR.PinObject(function);
int size_of_IOSTREAM;
int offset_to_poninter_of_IOFUNCTIONS;
int size_of_pointer;
if (Is64Bit())
{
size_of_IOSTREAM = 232;
offset_to_poninter_of_IOFUNCTIONS = 104;
size_of_pointer = 8;
}
else
{
size_of_IOSTREAM = 144;
offset_to_poninter_of_IOFUNCTIONS = 72;
size_of_pointer = 4;
}
#if USESAFELIB
IntPtr callbackFunctionPtr = Marshal.GetFunctionPointerForDelegate(function);
IntPtr address_std_stream_array;
if (PrologCLR.IsLinux)
{
address_std_stream_array = NativeMethodsLinux.GetProcAddress(m_hLibrary, "S__iob");
}
else
{
address_std_stream_array = NativeMethodsWindows.GetProcAddress(m_hLibrary, "S__iob");
}
IntPtr function_array_out = Marshal.ReadIntPtr(address_std_stream_array, (size_of_IOSTREAM * (int)streamType) + offset_to_poninter_of_IOFUNCTIONS);
#if false
#if _PL_X64
Marshal.WriteIntPtr(new IntPtr(function_array_out.ToInt64() + (size_of_pointer * (int)functionType)), callbackFunctionPtr);
#else
Marshal.WriteIntPtr(new IntPtr(function_array_out.ToInt32() + (size_of_pointer * (int)functionType)), callbackFunctionPtr);
#endif // _PL_X64
#endif // false
if (Is64Bit())
{
Marshal.WriteIntPtr(new IntPtr(function_array_out.ToInt64() + (size_of_pointer * (int)functionType)), callbackFunctionPtr);
}
else
{
Marshal.WriteIntPtr(new IntPtr(function_array_out.ToInt32() + (size_of_pointer * (int)functionType)), callbackFunctionPtr);
}
#endif // USESAFELIB
}