public CommandResult ReleaseLock(Guid lockID)
{
CommandResult commandResult = CommandResult.Failed_PrinterDoesNotHaveLock;
lock (lock_sync)
{
if (lockStatus != PrinterConnection.LockStatus.Locked)
{
if (lockStatus != PrinterConnection.LockStatus.Pending)
{
goto label_11;
}
}
if (this.lockID == lockID)
{
lockStatus = PrinterConnection.LockStatus.Unlocked;
Info.synchronization.Locked = false;
clientID = Guid.Empty;
lockID = Guid.Empty;
commandResult = CommandResult.Success_LockReleased;
}
BaseController controllerSelf = ControllerSelf;
if (controllerSelf != null)
{
if (controllerSelf is FirmwareController firmwareController)
{
firmwareController.BoundsCheckingEnabled = true;
}
}
}
label_11:
return(commandResult);
}
public void OnClientRemoved(Guid guid)
{
if (!(clientID == guid))
{
return;
}
lockStatus = PrinterConnection.LockStatus.Unlocked;
Info.synchronization.Locked = false;
clientID = Guid.Empty;
lockID = Guid.Empty;
}
private void InitConnection()
{
shared_shutdown = new ThreadSafeVariable <bool>(false);
internal_logger = new Logger(shared_shutdown);
printerInfo = new PrinterInfo();
CurrentRPC_id.Value = printerInfo.synchronization.LastCompletedRPCID = (uint)(SpoolerServer.RandomGenerator.Next() % byte.MaxValue);
printerInfo.hardware.com_port = _safeSerialPort.PortName;
Info.serial_number = PrinterSerialNumber.Undefined;
Status = PrinterStatus.Uninitialized;
lockID = Guid.Empty;
clientID = Guid.Empty;
lockStatus = PrinterConnection.LockStatus.Unlocked;
lock_sync = new object();
}
public CommandResult AcquireLock(Guid clientID)
{
lock (lock_sync)
{
if (IsPrinting && !IsPaused)
{
return(CommandResult.Failed_CannotLockWhilePrinting);
}
if (lockStatus == PrinterConnection.LockStatus.Locked && !(this.clientID == clientID))
{
return(CommandResult.Failed_PrinterAlreadyLocked);
}
this.clientID = clientID;
lockID = Guid.NewGuid();
lockStatus = PrinterConnection.LockStatus.Pending;
return(CommandResult.Pending);
}
}
private bool ProcessConnectedPrinter()
{
try
{
if (Status == PrinterStatus.Error_PrinterNotAlive)
{
return(false);
}
if (!IsOpen)
{
Status = PrinterStatus.Error_PrinterNotAlive;
}
BaseController controllerSelf = ControllerSelf;
if (controllerSelf != null)
{
controllerSelf.DoConnectionLogic();
if (!controllerSelf.IsWorking || Status == PrinterStatus.Firmware_PrintingPaused)
{
var num = CurrentRPC_id.Value;
if (num != 0U && (int)num != (int)Info.synchronization.LastCompletedRPCID)
{
Info.synchronization.LastCompletedRPCID = num;
}
}
else
{
lock (lockResetTimer)
{
if (lockResetTimer.IsRunning)
{
lockResetTimer.Restart();
}
}
}
if (lockStatus == PrinterConnection.LockStatus.Pending && Status != PrinterStatus.Connecting && (!controllerSelf.IsWorking && !controllerSelf.IsPrinting || Status == PrinterStatus.Firmware_PrintingPaused))
{
lockStatus = PrinterConnection.LockStatus.Locked;
Info.synchronization.Locked = true;
BroadcastServer.SendMessageToClient(clientID, new SpoolerMessage(MessageType.LockConfirmed, Info.serial_number, lockID.ToString()).Serialize());
}
if (controllerSelf.Idle && lockStatus == PrinterConnection.LockStatus.Locked)
{
lock (lockResetTimer)
{
if (!lockResetTimer.IsRunning)
{
lockResetTimer.Restart();
}
if (lockResetTimer.Elapsed.TotalSeconds > 30.0)
{
DoBreakLock();
}
}
}
else
{
lock (lockResetTimer)
{
if (lockResetTimer.IsRunning)
{
lockResetTimer.Stop();
}
}
}
}
}
catch (Exception ex)
{
if (ex.Message.ToString().ToLower() != "unable to write program memory. the serial port is not open.")
{
ErrorLogger.LogException("PrinterConnection Exception", ex);
}
Shutdown();
return(false);
}
return(true);
}
