public ExvokerImpl(object o, DelegateStorage d, ICallingConventionAdapter a)
{
foreach (var sdt in d.DelegateTypes)
{
var del = Delegate.CreateDelegate(sdt.DelegateType, o, sdt.Method);
Delegates.Add(del); // prevent garbage collection of the delegate, which would invalidate the pointer
EntryPoints.Add(sdt.EntryPointName, a.GetFunctionPointerForDelegate(del));
}
}
public IntPtr GetFunctionPointerForDelegate(Delegate d)
{
if (_slots == null)
{
throw new InvalidOperationException("This calling convention adapter was created for departure only! Pass known delegate slots when constructing to enable arrival");
}
if (!_slots.TryGetValue(d, out var slot))
{
throw new InvalidOperationException("All callback delegates must be registered at load");
}
return(_waterboxHost.GetCallbackProcAddr(WaterboxWrapper.GetFunctionPointerForDelegate(d), slot));
}