// Constructor
public FailureAction(ServiceRecoveryOptionHelper.RecoverAction actionType, int actionDelay)
{
Type = actionType;
Delay = actionDelay;
}
public static void ChangeRevoveryOption(string serviceName, ServiceRecoveryOptionHelper.RecoverAction firstFailureAction,
ServiceRecoveryOptionHelper.RecoverAction secondFailureAction, ServiceRecoveryOptionHelper.RecoverAction thirdFailureAction)
{
try
{
// Open the service control manager
var scmHndl = ServiceRecoveryOptionHelper.OpenSCManager(null, null, ScManagerAllAccess);
if (scmHndl.ToInt32() <= 0)
{
return;
}
// Open the service
var svcHndl = ServiceRecoveryOptionHelper.OpenService(scmHndl, serviceName, ServiceAllAccess);
if (svcHndl.ToInt32() <= 0)
{
return;
}
var failureActions = new ArrayList
{
// First Failure Actions and Delay (msec)
new FailureAction(firstFailureAction, 0),
// Second Failure Actions and Delay (msec)
new FailureAction(secondFailureAction, 0),
// Subsequent Failures Actions and Delay (msec)
new FailureAction(thirdFailureAction, 0)
};
var numActions = failureActions.Count;
var myActions = new int[numActions * 2];
var currInd = 0;
foreach (FailureAction fa in failureActions)
{
myActions[currInd] = (int)fa.Type;
myActions[++currInd] = fa.Delay;
currInd++;
}
// Need to pack 8 bytes per struct
var tmpBuf = Marshal.AllocHGlobal(numActions * 8);
// Move array into marshallable pointer
Marshal.Copy(myActions, 0, tmpBuf, numActions * 2);
// Set the SERVICE_FAILURE_ACTIONS struct
var config =
new ServiceRecoveryOptionHelper.ServiceFailureActions
{
cActions = 3,
dwResetPeriod = 0,
lpCommand = null,
lpRebootMsg = null,
lpsaActions = new IntPtr(tmpBuf.ToInt32())
};
// Call the ChangeServiceFailureActions() abstraction of ChangeServiceConfig2()
var result =
ServiceRecoveryOptionHelper.ChangeServiceFailureActions(svcHndl, ServiceConfigFailureActions,
ref config);
//Check the return
if (!result)
{
var err = ServiceRecoveryOptionHelper.GetLastError();
if (err == ErrorAccessDenied)
{
throw new Exception("Access Denied while setting Failure Actions");
}
// Free the memory
Marshal.FreeHGlobal(tmpBuf);
}
}
catch (Exception)
{
throw new Exception("Unable to set service recovery options");
}
}
