protected override object QueryAndWait(Func <InMemoryState, object> query)
{
using (var callback = new InMemoryDispatcherCallback(query))
{
_queries.Enqueue(callback);
if (Volatile.Read(ref _outstandingRequests.Value) == 0)
{
if (Interlocked.Exchange(ref _outstandingRequests.Value, 1) == 0)
{
_semaphore.Release();
}
}
// TODO: Add timeout here – dispatcher thread can fail, and we shouldn't block user code in this case
callback.Ready.Wait();
return(callback.Result);
}
}
protected override object QueryAndWait(Func <InMemoryState, object> query)
{
using (var callback = new InMemoryDispatcherCallback(query))
{
_queries.Enqueue(callback);
if (Volatile.Read(ref _outstandingRequests.Value) == 0)
{
if (Interlocked.Exchange(ref _outstandingRequests.Value, 1) == 0)
{
_semaphore.Release();
}
}
if (!callback.Ready.Wait(DefaultQueryTimeout))
{
throw new TimeoutException();
}
return(callback.Result);
}
}