private async Task DrainQueue()
{
var batch = new List <Message>();
try
{
Message message;
while (Queue.TryDequeue(out message) && batch.Count < MaxBatchSize)
{
batch.Add(message);
}
if (batch.Count > 0)
{
// Limit number of concurrent clients
await HttpSemaphore.WaitAsync();
try
{
// Simulate network IO
await Task.Delay((int)NetworkDelay.TotalMilliseconds);
Interlocked.Add(ref Program.MessagesSent, batch.Count);
}
finally
{
HttpSemaphore.Release();
}
}
}
finally
{
ActiveReaderSemaphore.Release();
}
}
public void Enqueue(Message message)
{
Queue.Enqueue(message);
if (Queue.Count > MaxBatchSize && ActiveReaderSemaphore.Wait(TimeSpan.FromMilliseconds(0)))
{
Task.Run(DrainQueue);
}
}
private void Timer_Tick(object state)
{
var count = Queue.Count;
var readers = ActiveReaderLimit - ActiveReaderSemaphore.CurrentCount;
var clients = ActiveHttpLimit - HttpSemaphore.CurrentCount;
Console.WriteLine($"Timer Ticked: {count} messages queued - {readers} Active Readers - {clients} Active HTTP Clients.");
if (ActiveReaderSemaphore.Wait(TimeSpan.FromMilliseconds(0)))
{
Task.Run(DrainQueue);
}
}
