// Grabs a snapshot of the current internal state, and starts a new task to send it to the server.
private void StartFlush(EventBuffer buffer)
{
if (_disabled)
{
return;
}
FlushPayload payload = buffer.GetPayload();
if (_diagnosticStore != null)
{
_diagnosticStore.RecordEventsInBatch(payload.Events.Length);
}
if (payload.Events.Length > 0 || !payload.Summary.Empty)
{
lock (_flushWorkersCounter)
{
// Note that this counter will be 1, not 0, when there are no active flush workers.
// This is because a .NET CountdownEvent can't be reused without explicitly resetting
// it once it has gone to zero.
if (_flushWorkersCounter.CurrentCount >= MaxFlushWorkers + 1)
{
// We already have too many workers, so just leave the events as is
return;
}
// We haven't hit the limit, we'll go ahead and start a flush task
_flushWorkersCounter.AddCount(1);
}
buffer.Clear();
Task.Run(async() => {
try
{
await FlushEventsAsync(payload);
}
finally
{
_flushWorkersCounter.Signal();
}
});
}
}