public DequeueHint GetDequeueHint(IEnumerable <long> deviceIds)
{
var dequeueHint = new DequeueHint();
lock (_lock)
{
foreach (var deviceId in deviceIds)
{
DeviceEntry currentEntry;
if (_deviceEntries.TryGetValue(deviceId, out currentEntry))
{
if (currentEntry.DequeueIndex < currentEntry.EnqueueIndex)
{
dequeueHint.NewMessages.Add(currentEntry.Clone());
}
}
else
{
dequeueHint.UnknownDevices.Add(deviceId);
}
}
}
return(dequeueHint);
}
public static IReadOnlyCollection <DeviceIdWithOpHint> ToDeviceIdWithOpHint(DequeueHint dequeueHint)
{
var result = new List <DeviceIdWithOpHint>();
foreach (var deviceEntry in dequeueHint.NewMessages)
{
result.Add(new DeviceIdWithOpHint
{
DeviceId = deviceEntry.Id,
Index = deviceEntry.DequeueIndex
});
}
foreach (var unknownDevice in dequeueHint.UnknownDevices)
{
result.Add(new DeviceIdWithOpHint
{
DeviceId = unknownDevice,
Index = null
});
}
return(result);
}