public void SetRecoveryOptions()
{
uint delay = 60000;
SC_ACTION pFirstFailure = new SC_ACTION();
pFirstFailure.Type = SC_ACTION_TYPE.SC_ACTION_RESTART;
pFirstFailure.Delay = delay;
SC_ACTION pSecondFailure = new SC_ACTION();
pSecondFailure.Type = SC_ACTION_TYPE.SC_ACTION_RESTART;
pSecondFailure.Delay = delay;
SC_ACTION pSubsequentFailures = new SC_ACTION();
pSubsequentFailures.Type = SC_ACTION_TYPE.SC_ACTION_RESTART;
pSubsequentFailures.Delay = delay;
int pDaysToResetFailureCount = 0;
int NUM_ACTIONS = 3;
int[] arrActions = new int[NUM_ACTIONS * 2];
int index = 0;
arrActions[index++] = (int)pFirstFailure.Type;
arrActions[index++] = (int)pFirstFailure.Delay;
arrActions[index++] = (int)pSecondFailure.Type;
arrActions[index++] = (int)pSecondFailure.Delay;
arrActions[index++] = (int)pSubsequentFailures.Type;
arrActions[index++] = (int)pSubsequentFailures.Delay;
IntPtr tmpBuff = Marshal.AllocHGlobal(NUM_ACTIONS * 8);
try
{
Marshal.Copy(arrActions, 0, tmpBuff, NUM_ACTIONS * 2);
SERVICE_FAILURE_ACTIONS sfa = new SERVICE_FAILURE_ACTIONS();
sfa.cActions = 3;
sfa.dwResetPeriod = pDaysToResetFailureCount;
sfa.lpCommand = null;
sfa.lpRebootMsg = null;
sfa.lpsaActions = new IntPtr(tmpBuff.ToInt32());
bool success = ChangeServiceFailureActions(_ServiceHandle, SERVICE_CONFIG_FAILURE_ACTIONS, ref sfa);
if (!success)
{
if (GetLastError() == ERROR_ACCESS_DENIED)
{
throw new Exception("Access denied while setting failure actions.");
}
else
{
throw new Exception("Unknown error while setting failure actions.");
}
}
}
finally
{
Marshal.FreeHGlobal(tmpBuff);
tmpBuff = IntPtr.Zero;
}
}
public bool HasRestartOnFailure(string serviceName)
{
const int bufferSize = 1024 * 8;
IntPtr service = IntPtr.Zero;
IntPtr bufferPtr = IntPtr.Zero;
bool result = false;
try
{
// Open the service
service = OpenService(serviceName, ServiceAccessRights.SERVICE_QUERY_CONFIG);
int dwBytesNeeded = 0;
// Allocate memory for struct
bufferPtr = Marshal.AllocHGlobal(bufferSize);
int queryResult = NativeMethods.QueryServiceConfig2(
service,
ServiceConfig2InfoLevel.SERVICE_CONFIG_FAILURE_ACTIONS,
bufferPtr,
bufferSize,
out dwBytesNeeded);
if (queryResult == 0)
{
throw new Win32Exception(Marshal.GetLastWin32Error(), "Unable to query the Service configuration.");
}
// Cast the buffer to a QUERY_SERVICE_CONFIG struct
SERVICE_FAILURE_ACTIONS config =
(SERVICE_FAILURE_ACTIONS)Marshal.PtrToStructure(bufferPtr, typeof(SERVICE_FAILURE_ACTIONS));
// Determine whether the service is set to auto restart
if (config.cActions != 0)
{
SC_ACTION action = (SC_ACTION)Marshal.PtrToStructure(config.lpsaActions, typeof(SC_ACTION));
result = (action.Type == SC_ACTION_TYPE.SC_ACTION_RESTART);
}
return(result);
}
finally
{
// Clean up
if (bufferPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(bufferPtr);
}
if (service != IntPtr.Zero)
{
NativeMethods.CloseServiceHandle(service);
}
}
}
public void SetRestartOnFailure(string serviceName)
{
const int actionCount = 2;
const uint delay = 60000;
IntPtr service = IntPtr.Zero;
IntPtr failureActionsPtr = IntPtr.Zero;
IntPtr actionPtr = IntPtr.Zero;
try
{
// Open the service
service = OpenService(serviceName,
ServiceAccessRights.SERVICE_CHANGE_CONFIG |
ServiceAccessRights.SERVICE_START);
// Allocate memory for the individual actions
actionPtr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(SC_ACTION)) * actionCount);
// Set up the restart action
SC_ACTION action1 = new SC_ACTION();
action1.Type = SC_ACTION_TYPE.SC_ACTION_RESTART;
action1.Delay = delay;
Marshal.StructureToPtr(action1, actionPtr, false);
// Set up the restart action
SC_ACTION action2 = new SC_ACTION();
action2.Type = SC_ACTION_TYPE.SC_ACTION_RESTART;
action2.Delay = delay;
Marshal.StructureToPtr(action2, (IntPtr)((Int64)actionPtr + Marshal.SizeOf(typeof(SC_ACTION))), false);
//// Set up the restart action
//SC_ACTION action3 = new SC_ACTION();
//action3.Type = SC_ACTION_TYPE.SC_ACTION_RESTART;
//action3.Delay = delay;
//Marshal.StructureToPtr(action3, (IntPtr)((Int64)actionPtr + Marshal.SizeOf(typeof(SC_ACTION)) * 2), false);
// Set up the failure actions
SERVICE_FAILURE_ACTIONS failureActions = new SERVICE_FAILURE_ACTIONS();
failureActions.dwResetPeriod = 0;
failureActions.cActions = actionCount;
failureActions.lpsaActions = actionPtr;
failureActionsPtr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(SERVICE_FAILURE_ACTIONS)));
Marshal.StructureToPtr(failureActions, failureActionsPtr, false);
// Make the change
int changeResult = NativeMethods.ChangeServiceConfig2(
service,
ServiceConfig2InfoLevel.SERVICE_CONFIG_FAILURE_ACTIONS,
failureActionsPtr);
// Check that the change occurred
if (changeResult == 0)
{
throw new Win32Exception(Marshal.GetLastWin32Error(), "Unable to change the Service configuration.");
}
}
finally
{
// Clean up
if (failureActionsPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(failureActionsPtr);
}
if (actionPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(actionPtr);
}
if (service != IntPtr.Zero)
{
NativeMethods.CloseServiceHandle(service);
}
}
}
