protected unsafe override ComInterfaceEntry *ComputeVtables(object obj, CreateComInterfaceFlags flags, out int count)
{
Assert.IsTrue(obj is Test);
IntPtr fpQueryInteface = default;
IntPtr fpAddRef = default;
IntPtr fpRelease = default;
ComWrappers.GetIUnknownImpl(out fpQueryInteface, out fpAddRef, out fpRelease);
var vtbl = new ITestVtbl()
{
IUnknownImpl = new IUnknownVtbl()
{
QueryInterface = fpQueryInteface,
AddRef = fpAddRef,
Release = fpRelease
},
SetValue = Marshal.GetFunctionPointerForDelegate(ITestVtbl.pSetValue)
};
var vtblRaw = RuntimeHelpers.AllocateTypeAssociatedMemory(typeof(ITestVtbl), sizeof(ITestVtbl));
Marshal.StructureToPtr(vtbl, vtblRaw, false);
var entryRaw = (ComInterfaceEntry *)RuntimeHelpers.AllocateTypeAssociatedMemory(typeof(ITestVtbl), sizeof(ComInterfaceEntry));
entryRaw->IID = typeof(ITest).GUID;
entryRaw->Vtable = vtblRaw;
count = 1;
return(entryRaw);
}
private unsafe ComInterfaceEntry *ComputeVtablesForTestObject(Test obj, out int count)
{
IntPtr fpQueryInteface = default;
IntPtr fpAddRef = default;
IntPtr fpRelease = default;
ComWrappers.GetIUnknownImpl(out fpQueryInteface, out fpAddRef, out fpRelease);
var iUnknownVtbl = new IUnknownVtbl()
{
QueryInterface = fpQueryInteface,
AddRef = fpAddRef,
Release = fpRelease
};
var vtbl = new ITestVtbl()
{
IUnknownImpl = iUnknownVtbl,
SetValue = Marshal.GetFunctionPointerForDelegate(ITestVtbl.pSetValue)
};
var vtblRaw = RuntimeHelpers.AllocateTypeAssociatedMemory(typeof(ITestVtbl), sizeof(ITestVtbl));
Marshal.StructureToPtr(vtbl, vtblRaw, false);
int countLocal = obj is TestEx ? ((TestEx)obj).Interfaces.Length + 1 : 1;
var entryRaw = (ComInterfaceEntry *)RuntimeHelpers.AllocateTypeAssociatedMemory(typeof(ITestVtbl), sizeof(ComInterfaceEntry) * countLocal);
entryRaw[0].IID = typeof(ITest).GUID;
entryRaw[0].Vtable = vtblRaw;
if (obj is TestEx)
{
var iUnknownVtblRaw = RuntimeHelpers.AllocateTypeAssociatedMemory(typeof(IUnknownVtbl), sizeof(IUnknownVtbl));
Marshal.StructureToPtr(iUnknownVtbl, iUnknownVtblRaw, false);
var testEx = (TestEx)obj;
for (int i = 1; i < testEx.Interfaces.Length + 1; i++)
{
// Including interfaces to allow QI, but not actually returning a valid vtable, since it is not needed for the tests here.
entryRaw[i].IID = testEx.Interfaces[i - 1];
entryRaw[i].Vtable = iUnknownVtblRaw;
}
}
count = countLocal;
return(entryRaw);
}
