/// <summary>
/// Mount data results
/// </summary>
/// <remarks>
/// There could be timing issues between this method and timeouts for commands reading mount data
/// </remarks>
/// <param name="command"></param>
/// <returns></returns>
public static ISkyCommand GetCommandResult(ISkyCommand command)
{
if (!IsRunning || _cts.IsCancellationRequested || !_skyWatcher.IsConnected)
{
var e = new MountControlException(ErrorCode.ErrQueueFailed, "Queue not running");
command.Exception = e;
command.Successful = false;
return(command);
}
var sw = Stopwatch.StartNew();
while (sw.Elapsed.TotalMilliseconds < 22000)
{
if (_resultsDictionary == null)
{
break;
}
var success = _resultsDictionary.TryRemove(command.Id, out var result);
if (success)
{
return(result);
}
Thread.Sleep(1);
}
var ex = new MountControlException(ErrorCode.ErrQueueFailed, $"Unable to Find Results {command.Id}, {command}, {sw.Elapsed.TotalMilliseconds}");
command.Exception = ex;
command.Successful = false;
return(command);
}
/// <summary>
/// Process command queue
/// </summary>
/// <param name="command"></param>
private static void ProcessCommandQueue(ISkyCommand command)
{
try
{
if (!IsRunning || _cts.IsCancellationRequested || !_skyWatcher.IsConnected)
{
return;
}
command.Execute(_skyWatcher);
if (command.Id <= 0)
{
return;
}
if (_resultsDictionary.TryAdd(command.Id, command) == false)
{
throw new MountControlException(ErrorCode.ErrQueueFailed, $"Unable to post results {command.Id}, {command}");
}
}
catch (Exception e)
{
var monitorItem = new MonitorEntry
{
Datetime = HiResDateTime.UtcNow, Device = MonitorDevice.Telescope, Category = MonitorCategory.Mount, Type = MonitorType.Information, Method = MethodBase.GetCurrentMethod().Name, Thread = Thread.CurrentThread.ManagedThreadId, Message = $"{command.Id},{e.Message}"
};
MonitorLog.LogToMonitor(monitorItem);
command.Exception = e;
command.Successful = false;
}
}
/// <summary>
/// Add a command to the blocking queue
/// </summary>
/// <param name="command"></param>
public static void AddCommand(ISkyCommand command)
{
if (!IsRunning || _cts.IsCancellationRequested || !_skyWatcher.IsConnected)
{
return;
}
CleanResults(20, 120);
if (_commandBlockingCollection.TryAdd(command) == false)
{
throw new MountControlException(ErrorCode.ErrQueueFailed, $"Unable to Add Command {command.Id}, {command}");
}
}
