static void NonblittableFunctionPointers()
{
Console.WriteLine($"Running {nameof(NonblittableFunctionPointers)}...");
IntPtr mod = NativeLibrary.Load(NativeFunctions.GetFullPath());
const char a = 'i';
const char expected = 'I';
{
var cb = NativeLibrary.GetExport(mod, "ToUpper").ToPointer();
Assert.Throws <NotImplementedException>(() => CallFunctionPointers.CallUnmanagedCharChar(cb, a));
}
{
var cb = NativeLibrary.GetExport(mod, "ToUpperCdecl").ToPointer();
var b = CallFunctionPointers.CallUnmanagedCdeclCharChar(cb, a);
Assert.AreEqual(b, expected);
}
{
var cb = NativeLibrary.GetExport(mod, "ToUpperStdcall").ToPointer();
var b = CallFunctionPointers.CallUnmanagedStdcallCharChar(cb, a);
Assert.AreEqual(b, expected);
}
}
static void NonblittableFunctionPointers()
{
Console.WriteLine($"Running {nameof(NonblittableFunctionPointers)}...");
IntPtr mod = NativeLibrary.Load(NativeFunctions.GetFullPath());
var cbDefault = NativeLibrary.GetExport(mod, "ToUpper").ToPointer();
var cbCdecl = NativeLibrary.GetExport(mod, "ToUpperCdecl").ToPointer();
var cbStdcall = NativeLibrary.GetExport(mod, "ToUpperStdcall").ToPointer();
const char a = 'i';
const char expected = 'I';
{
// No modopt
Console.WriteLine($" -- unmanaged");
var b = CallFunctionPointers.CallUnmanagedCharChar(cbDefault, a);
Assert.Equal(expected, b);
}
{
Console.WriteLine($" -- unmanaged cdecl");
var b = CallFunctionPointers.CallUnmanagedCdeclCharChar(cbCdecl, a);
Assert.Equal(expected, b);
}
{
Console.WriteLine($" -- unmanaged stdcall");
var b = CallFunctionPointers.CallUnmanagedStdcallCharChar(cbStdcall, a);
Assert.Equal(expected, b);
}
{
Console.WriteLine($" -- unmanaged modopt(cdecl)");
var b = CallFunctionPointers.CallUnmanagedCharChar_ModOptCdecl(cbCdecl, a);
Assert.Equal(expected, b);
}
{
Console.WriteLine($" -- unmanaged modopt(stdcall)");
var b = CallFunctionPointers.CallUnmanagedCharChar_ModOptStdcall(cbStdcall, a);
Assert.Equal(expected, b);
}
{
// Value in modopt is not a recognized calling convention
Console.WriteLine($" -- unmanaged modopt(unrecognized)");
var b = CallFunctionPointers.CallUnmanagedCharChar_ModOptUnknown(cbDefault, a);
Assert.Equal(expected, b);
}
{
// Multiple modopts with calling conventions
Console.WriteLine($" -- unmanaged modopt(stdcall) modopt(cdecl)");
var ex = Assert.Throws <InvalidProgramException>(
() => CallFunctionPointers.CallUnmanagedCharChar_ModOptStdcall_ModOptCdecl(cbCdecl, a));
Assert.Equal("Multiple unmanaged calling conventions are specified. Only a single calling convention is supported.", ex.Message);
}
{
Console.WriteLine($" -- unmanaged modopt(stdcall) modopt(unrecognized)");
var b = CallFunctionPointers.CallUnmanagedCharChar_ModOptStdcall_ModOptUnknown(cbStdcall, a);
Assert.Equal(expected, b);
}
{
Console.WriteLine($" -- unmanaged cdecl modopt(stdcall)");
var b = CallFunctionPointers.CallUnmanagedCdeclCharChar_ModOptStdcall(cbCdecl, a);
Assert.Equal(expected, b);
}
{
Console.WriteLine($" -- unmanaged stdcall modopt(cdecl)");
var b = CallFunctionPointers.CallUnmanagedStdcallCharChar_ModOptCdecl(cbStdcall, a);
Assert.Equal(expected, b);
}
}