private void AsyncRun(Func <bool> asyncAction)
{
try {
using (_messages = new BlockingCollection <TaskCompletionSource <bool> >()) {
// spawn the activity off in another thread.
var task = IsInitialized ?
Task.Factory.StartNew(asyncAction, TaskCreationOptions.LongRunning) :
Task.Factory.StartNew(Init, TaskCreationOptions.LongRunning).ContinueWith(antecedent => {
try {
asyncAction();
} catch (Exception e) {
e.Dump();
}
})
;
// when the task is done, mark the msg queue as complete
task.ContinueWith(antecedent => {
if (_messages != null)
{
_messages.Complete();
}
});
// process the queue of messages back in the main thread so that they
// can properly access the non-thread-safe-things in cmdlet
foreach (var message in _messages)
{
InvokeMessage(message);
}
}
} finally {
_messages = null;
}
}
protected override void Complete()
{
Results.Complete();
base.Complete();
}