internal static void ThrowAsync(Exception exception, SynchronizationContext targetContext)
{
if (targetContext != null)
{
try
{
targetContext.Post(delegate(object state)
{
throw TaskAwaiter.PrepareExceptionForRethrow((Exception)state);
}, exception);
return;
}
catch (Exception ex)
{
exception = new AggregateException(new Exception[]
{
exception,
ex
});
}
}
ThreadPool.QueueUserWorkItem(delegate(object state)
{
throw TaskAwaiter.PrepareExceptionForRethrow((Exception)state);
}, exception);
}
private static void ThrowForNonSuccess(Task task)
{
switch (task.Status)
{
case TaskStatus.Canceled:
throw new TaskCanceledException(task);
case TaskStatus.Faulted:
throw TaskAwaiter.PrepareExceptionForRethrow(task.Exception.InnerException);
default:
throw new InvalidOperationException("The task has not yet completed.");
}
}
/// <summary>
/// Throws the exception on the ThreadPool.
/// </summary>
/// <param name="exception">The exception to propagate.</param><param name="targetContext">The target context on which to propagate the exception. Null to use the ThreadPool.</param>
internal static void ThrowOnContext(Exception exception, SynchronizationContext targetContext)
{
if (targetContext != null)
{
try
{
targetContext.Post(state => throw TaskAwaiter.PrepareExceptionForRethrow((Exception)state), exception);
return;
}
catch (Exception ex)
{
exception = new AggregateException(exception, ex);
}
}
ThreadPool.QueueUserWorkItem(state => throw TaskAwaiter.PrepareExceptionForRethrow((Exception)state), exception);
}