/// <summary>
/// Determine if the current service is trigger-start
/// </summary>
/// <returns></returns>
protected bool IsTriggerStartService()
{
using (ServiceController sc = new ServiceController(this.ServiceName))
{
// Query the service trigger info size of the current serivce
int cbBytesNeeded = -1, errorCode = 0;
ServiceNative.QueryServiceConfig2(sc.ServiceHandle.DangerousGetHandle(),
ServiceConfig2InfoLevel.SERVICE_CONFIG_TRIGGER_INFO,
IntPtr.Zero, 0, out cbBytesNeeded);
if (cbBytesNeeded == -1)
{
// If failed, throw the error information
errorCode = Marshal.GetLastWin32Error();
throw Marshal.GetExceptionForHR(errorCode);
}
// Allocate memory for the service trigger info struct
IntPtr pBuffer = Marshal.AllocHGlobal(cbBytesNeeded);
// Retrieve the service trigger info
bool bSuccess = ServiceNative.QueryServiceConfig2(
sc.ServiceHandle.DangerousGetHandle(),
ServiceConfig2InfoLevel.SERVICE_CONFIG_TRIGGER_INFO,
pBuffer, cbBytesNeeded, out cbBytesNeeded) != 0;
if (!bSuccess)
{
// If failed, clean up the memory and throw the error
Marshal.FreeHGlobal(pBuffer);
errorCode = Marshal.GetLastWin32Error();
throw Marshal.GetExceptionForHR(errorCode);
}
// Determine if the serivce is trigger-start
SERVICE_TRIGGER_INFO serviceTriggerInfo = (SERVICE_TRIGGER_INFO)
Marshal.PtrToStructure(pBuffer, typeof(SERVICE_TRIGGER_INFO));
bool bTriggerStart = serviceTriggerInfo.cTriggers > 0;
Marshal.FreeHGlobal(pBuffer);
return(bTriggerStart);
}
}
private void SetServiceTriggerStartOnCustomEvent(string serviceName)
{
using (ServiceController sc = new ServiceController(serviceName))
{
// Marshal Guid struct GUID_DEVINTERFACE_DISK to native memory
IntPtr pGuidCustomEvent = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(Guid)));
Marshal.StructureToPtr(CUSTOM_EVENT_GUID, pGuidCustomEvent, false);
//// Allocate and set the SERVICE_TRIGGER_SPECIFIC_DATA_ITEM structure
//SERVICE_TRIGGER_SPECIFIC_DATA_ITEM deviceData;
//deviceData.dwDataType = ServiceTriggerDataType.SERVICE_TRIGGER_DATA_TYPE_STRING;
//deviceData.cbData = (uint)(USBHardwareId.Length + 1) * 2;
//IntPtr pUSBHardwareId = Marshal.StringToHGlobalUni(USBHardwareId);
//deviceData.pData = pUSBHardwareId;
//// Marshal the SERVICE_TRIGGER_SPECIFIC_DATA_ITEM struct to native memory
//IntPtr pDeviceData = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(
// SERVICE_TRIGGER_SPECIFIC_DATA_ITEM)));
//Marshal.StructureToPtr(deviceData, pDeviceData, false);
// Allocate and set the SERVICE_TRIGGER structure
SERVICE_TRIGGER serviceTrigger;
serviceTrigger.dwTriggerType =
ServiceTriggerType.SERVICE_TRIGGER_TYPE_CUSTOM;
serviceTrigger.dwAction =
ServiceTriggerAction.SERVICE_TRIGGER_ACTION_SERVICE_START;
serviceTrigger.pTriggerSubtype = pGuidCustomEvent;
serviceTrigger.cDataItems = 0;
serviceTrigger.pDataItems = IntPtr.Zero;
// Marshal the SERVICE_TRIGGER struct to native memory
IntPtr pServiceTrigger = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(
SERVICE_TRIGGER)));
Marshal.StructureToPtr(serviceTrigger, pServiceTrigger, false);
// Allocate and set the SERVICE_TRIGGER_INFO structure.
SERVICE_TRIGGER_INFO serviceTriggerInfo = new SERVICE_TRIGGER_INFO();
serviceTriggerInfo.cTriggers = 1;
serviceTriggerInfo.pTriggers = pServiceTrigger;
// Marshal the SERVICE_TRIGGER_INFO struct to native memory
IntPtr pServiceTriggerInfo = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(
SERVICE_TRIGGER_INFO)));
Marshal.StructureToPtr(serviceTriggerInfo, pServiceTriggerInfo, false);
// Call ChangeServiceConfig2 with the SERVICE_CONFIG_TRIGGER_INFO level
// and pass to it the address of the SERVICE_TRIGGER_INFO structure.
bool bSuccess = ServiceNative.ChangeServiceConfig2(
sc.ServiceHandle.DangerousGetHandle(),
ServiceConfig2InfoLevel.SERVICE_CONFIG_TRIGGER_INFO, pServiceTriggerInfo);
int errorCode = Marshal.GetLastWin32Error();
// Clean up the native resources
//Marshal.FreeHGlobal(pGuidUSBDevice);
//Marshal.FreeHGlobal(pUSBHardwareId);
//Marshal.FreeHGlobal(pDeviceData);
Marshal.FreeHGlobal(pServiceTrigger);
Marshal.FreeHGlobal(pServiceTriggerInfo);
// If the service failed to be set as trigger start, throw the error
// returned by the ChangeServiceConfig2 function.
if (!bSuccess)
{
Marshal.ThrowExceptionForHR(errorCode);
}
}
}
/// <summary>
/// Set the service to trigger-start when the first IP address on the TCP/IP
/// networking stack becomes available, and trigger-stop when the last IP address on
/// the TCP/IP networking stack becomes unavailable.
/// </summary>
/// <param name="serviceName"></param>
private void SetServiceTriggerStartOnIPAddressArrival(string serviceName)
{
using (ServiceController sc = new ServiceController(serviceName))
{
// Marshal Guid struct NETWORK_MANAGER_FIRST_IP_ADDRESS_ARRIVAL_GUID and
// NETWORK_MANAGER_LAST_IP_ADDRESS_REMOVAL_GUID to native memory
IntPtr pGuidIpAddressArrival = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(Guid)));
Marshal.StructureToPtr(NETWORK_MANAGER_FIRST_IP_ADDRESS_ARRIVAL_GUID,
pGuidIpAddressArrival, false);
IntPtr pGuidIpAddressRemoval = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(Guid)));
Marshal.StructureToPtr(NETWORK_MANAGER_LAST_IP_ADDRESS_REMOVAL_GUID,
pGuidIpAddressRemoval, false);
// Allocate and set the SERVICE_TRIGGER structure for
// NETWORK_MANAGER_FIRST_IP_ADDRESS_ARRIVAL_GUID to start the service
SERVICE_TRIGGER serviceTrigger1 = new SERVICE_TRIGGER();
serviceTrigger1.dwTriggerType =
ServiceTriggerType.SERVICE_TRIGGER_TYPE_IP_ADDRESS_AVAILABILITY;
serviceTrigger1.dwAction =
ServiceTriggerAction.SERVICE_TRIGGER_ACTION_SERVICE_START;
serviceTrigger1.pTriggerSubtype = pGuidIpAddressArrival;
// Allocate and set the SERVICE_TRIGGER structure for
// NETWORK_MANAGER_LAST_IP_ADDRESS_REMOVAL_GUID to stop the service
SERVICE_TRIGGER serviceTrigger2 = new SERVICE_TRIGGER();
serviceTrigger2.dwTriggerType =
ServiceTriggerType.SERVICE_TRIGGER_TYPE_IP_ADDRESS_AVAILABILITY;
serviceTrigger2.dwAction =
ServiceTriggerAction.SERVICE_TRIGGER_ACTION_SERVICE_STOP;
serviceTrigger2.pTriggerSubtype = pGuidIpAddressRemoval;
// Marshal the two SERVICE_TRIGGER structs to native memory as an array
IntPtr pServiceTriggers = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(
SERVICE_TRIGGER)) * 2 /*2 elements*/);
Marshal.StructureToPtr(serviceTrigger1, pServiceTriggers, false);
Marshal.StructureToPtr(serviceTrigger2, new IntPtr((long)pServiceTriggers +
Marshal.SizeOf(typeof(SERVICE_TRIGGER))), false);
// Allocate and set the SERVICE_TRIGGER_INFO structure
SERVICE_TRIGGER_INFO serviceTriggerInfo = new SERVICE_TRIGGER_INFO();
serviceTriggerInfo.cTriggers = 2;
serviceTriggerInfo.pTriggers = pServiceTriggers;
// Marshal the SERVICE_TRIGGER_INFO struct to native memory
IntPtr pServiceTriggerInfo = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(
SERVICE_TRIGGER_INFO)));
Marshal.StructureToPtr(serviceTriggerInfo, pServiceTriggerInfo, false);
// Call ChangeServiceConfig2 with the SERVICE_CONFIG_TRIGGER_INFO level
// and pass to it the address of the SERVICE_TRIGGER_INFO structure.
bool bSuccess = ServiceNative.ChangeServiceConfig2(
sc.ServiceHandle.DangerousGetHandle(),
ServiceConfig2InfoLevel.SERVICE_CONFIG_TRIGGER_INFO, pServiceTriggerInfo);
int errorCode = Marshal.GetLastWin32Error();
// Clean up the native resources
Marshal.FreeHGlobal(pGuidIpAddressArrival);
Marshal.FreeHGlobal(pGuidIpAddressRemoval);
Marshal.FreeHGlobal(pServiceTriggers);
Marshal.FreeHGlobal(pServiceTriggerInfo);
// If the service failed to be set as trigger start, throw the error
// returned by the ChangeServiceConfig2 function.
if (!bSuccess)
{
Marshal.ThrowExceptionForHR(errorCode);
}
}
}
