public void Unsubscribe()
{
IFileSystemChangesNotifierCallback caller = OperationContext.Current.GetCallbackChannel <IFileSystemChangesNotifierCallback>();
lock (_lock)
{
if (_subscribers.Remove(caller))
{
Logger.LogInformation("Subscribers: " + _subscribers.Count);
}
}
}
public void Subscribe()
{
IFileSystemChangesNotifierCallback caller = OperationContext.Current.GetCallbackChannel <IFileSystemChangesNotifierCallback>();
if (caller == null)
{
return;
}
if (_subscribers.Contains(caller))
{
return;
}
lock (_lock)
{
if (_subscribers.Add(caller))
{
Logger.LogInformation("Subscribers: " + _subscribers.Count);
}
}
}