private void ReportServiceStatus(ServiceState state, ServiceAcceptedControlCommandsFlags acceptedControlCommands, int win32ExitCode, uint waitHint)
{
if (serviceStatus.State == ServiceState.Stopped)
{
// we refuse to leave or alter the final state
return;
}
serviceStatus.State = state;
serviceStatus.Win32ExitCode = win32ExitCode;
serviceStatus.WaitHint = waitHint;
serviceStatus.AcceptedControlCommands = state == ServiceState.Stopped
? ServiceAcceptedControlCommandsFlags.None // since we enforce "Stopped" as final state, no longer accept control messages
: acceptedControlCommands;
serviceStatus.CheckPoint = state == ServiceState.Running || state == ServiceState.Stopped || state == ServiceState.Paused
? 0 // MSDN: This value is not valid and should be zero when the service does not have a start, stop, pause, or continue operation pending.
: checkpointCounter++;
nativeInterop.SetServiceStatus(serviceStatusHandle, ref serviceStatus);
if (state == ServiceState.Stopped)
{
stopTaskCompletionSource.TrySetResult(win32ExitCode);
}
}
private void ReportServiceStatus(ServiceState state, ServiceAcceptedControlCommandsFlags acceptedControlCommands, int win32ExitCode, uint waitHint)
{
// Recuso deixar ou alterar o estado final
if (serviceStatus.State == ServiceState.Stopped)
{
return;
}
serviceStatus.State = state;
serviceStatus.Win32ExitCode = win32ExitCode;
serviceStatus.WaitHint = waitHint;
serviceStatus.AcceptedControlCommands = state == ServiceState.Stopped
? ServiceAcceptedControlCommandsFlags.None // Uma vez que aplicamos o "Parado" como estado final, deixamos de aceitar as mensagens de controle.
: acceptedControlCommands;
serviceStatus.CheckPoint = state == ServiceState.Running ||
state == ServiceState.Stopped ||
state == ServiceState.Paused
? 0 // MSDN: Este valor não é válido e deve ser zero quando o serviço não tiver início, parar, pausar ou continuar a operação pendente.
: checkpointCounter++;
nativeInterop.SetServiceStatus(serviceStatusHandle, ref serviceStatus);
if (state == ServiceState.Stopped)
{
stopTaskCompletionSource.TrySetResult(win32ExitCode);
}
}
public ServiceStatus(ServiceType serviceType, ServiceState state, ServiceAcceptedControlCommandsFlags acceptedControlCommands, int win32ExitCode, uint serviceSpecificExitCode, uint checkPoint, uint waitHint)
{
this.serviceType = serviceType;
this.state = state;
this.acceptedControlCommands = acceptedControlCommands;
this.win32ExitCode = win32ExitCode;
this.serviceSpecificExitCode = serviceSpecificExitCode;
this.checkPoint = checkPoint;
this.waitHint = waitHint;
}
private void PerformAction(ServiceState pendingState
, ServiceState completedState
, System.Action serviceAction
, ServiceAcceptedControlCommandsFlags allowedControlCommandsFlags)
{
statusReportCallback(pendingState, ServiceAcceptedControlCommandsFlags.None, win32ExitCode: 0, waitHint: 3000);
try
{
serviceAction();
statusReportCallback(completedState, allowedControlCommandsFlags, 0, waitHint: 0);
}
catch
{
statusReportCallback(ServiceState.Stopped, ServiceAcceptedControlCommandsFlags.None, -1, waitHint: 0);
}
}
