private static void PostCallback(Object state)
{
Contract.Requires(state != null);
Contract.Requires(((ApmWrapper)state).AsyncCallback != null);
ApmWrapper apmWrap = (ApmWrapper)state;
apmWrap.AsyncCallback(apmWrap);
}
public T Unwrap(ref IAsyncResult result)
{
Contract.Requires(result != null);
ApmWrapper apmWrap = (ApmWrapper)result;
result = apmWrap.AsyncResult;
return(apmWrap.Data);
}
/// <summary>
/// Posts the callback.
/// </summary>
/// <param name="state">The object passed to the delegate.</param>
private static void PostCallback(object state)
{
ApmWrapper apmWrap = (ApmWrapper)state;
if (apmWrap != null)
{
Debug.Assert(apmWrap.AsyncCallback != null);
apmWrap.AsyncCallback(apmWrap);
}
}
/// <summary>
/// Unwraps an ApmWrap object and also retrieves the embedded data.
/// </summary>
/// <param name="result">
/// The <see langword="ref">reference</see> to the wrapped IAsyncResult object.
/// </param>
/// <returns>The embedded data.</returns>
public static T Unwrap([NotNull] ref IAsyncResult result)
{
ApmWrapper apmWrap = result as ApmWrapper;
if (apmWrap == null)
{
throw new ArgumentException(Resources.ApmWrap_Unwrap_ResultWrongType, "result");
}
Debug.Assert(apmWrap.AsyncResult != null);
result = apmWrap.AsyncResult;
return(apmWrap.Data);
}
public static AsyncCallback WrapCallback(
[NotNull] AsyncCallback callback,
T data,
SynchronizationContext syncContext = null)
{
if (callback == null)
{
throw new ArgumentNullException("callback");
}
ApmWrapper wrapper = new ApmWrapper
{
Data = data,
AsyncCallback = callback,
SyncContext = syncContext
};
return(wrapper.AsyncCallbackInternal);
}
