void ExecuteBuildTasks(SingleThreadedSynchronizationContext context, List <Exception> exceptions)
{
Task [] tasks = new Task [Count];
for (int i = 0; i < Count; i++)
{
tasks [i] = this [i].Execute(this);
}
Task.Factory.StartNew(async() =>
{
try {
await Task.WhenAll(tasks);
} catch (Exception e) {
exceptions.Add(e);
} finally {
context.SetCompleted();
}
}, CancellationToken.None, TaskCreationOptions.None, TaskScheduler.FromCurrentSynchronizationContext());
}
public void Execute()
{
if (Count == 0)
{
return;
}
var savedContext = SynchronizationContext.Current;
var exceptions = new List <Exception> ();
try {
var context = new SingleThreadedSynchronizationContext();
SynchronizationContext.SetSynchronizationContext(context);
ExecuteBuildTasks(context, exceptions);
context.Run();
} finally {
SynchronizationContext.SetSynchronizationContext(savedContext);
}
if (exceptions.Count > 0)
{
throw new AggregateException(exceptions);
}
}