private static IAsyncResult WrapWithTimeoutInternal <TResult>(AsyncCallback callback, object state, BeginInvokeCallback beginCallback, AsyncCallback <TResult> endCallback, int timeout, object tag)
{
AsyncResultWrapperImpl <TResult> wrapper = new AsyncResultWrapperImpl <TResult>()
{
Callback = callback,
AsyncState = state,
BeginCallback = beginCallback,
EndCallback = endCallback,
Tag = tag,
Timeout = timeout
};
wrapper.ExecuteBeginDelegate();
return(wrapper);
}
public static TResult UnwrapAndContinue <TResult>(IAsyncResult asyncResult, object tag)
{
if (asyncResult == null)
{
throw new ArgumentNullException("asyncResult");
}
AsyncResultWrapperImpl <TResult> wrapper = asyncResult as AsyncResultWrapperImpl <TResult>;
if (wrapper == null || wrapper.Tag != tag)
{
throw new ArgumentException(MvcResources.AsyncCommon_InvalidAsyncResult, "asyncResult");
}
return(wrapper.ExecuteEndDelegateOnce());
}
