/// <summary>
/// 卸载服务
/// </summary>
/// <param name="serviceName">服务名</param>
public static void Uninstall(string serviceName)
{
IntPtr scmHandle = IntPtr.Zero;
IntPtr service = IntPtr.Zero;
try
{
service = OpenService(serviceName, out scmHandle);
StopService(service); //停止服务。里面会递归停止从属服务
if (!Win32Class.DeleteService(service) && Marshal.GetLastWin32Error() != 0x430) //忽略已标记为删除的服务。ERROR_SERVICE_MARKED_FOR_DELETE
{
throw new ApplicationException("删除服务失败！");
}
}
catch (ServiceNotExistException) { } //忽略服务不存在的情况
finally
{
if (service != IntPtr.Zero)
{
Win32Class.CloseServiceHandle(service);
Win32Class.CloseServiceHandle(scmHandle);//放if里面是因为如果服务打开失败，在OpenService里就已释放SCM
}
}
}
/// <summary>
/// 安装服务
/// </summary>
/// <param name="serviceName">服务名</param>
/// <param name="displayName">友好名称</param>
/// <param name="binaryFilePath">映像文件路径，可带参数</param>
/// <param name="description">服务描述</param>
/// <param name="startType">启动类型</param>
/// <param name="account">启动账户</param>
/// <param name="dependencies">依赖服务</param>
public static void Install(string serviceName, string displayName, string binaryFilePath, string description, ServiceStartType startType, ServiceAccount account = ServiceAccount.LocalSystem, string[] dependencies = null)
{
IntPtr scm = OpenSCManager();
IntPtr service = IntPtr.Zero;
try {
service = Win32Class.CreateService(scm, serviceName, displayName, Win32Class.SERVICE_ALL_ACCESS, Win32Class.SERVICE_WIN32_OWN_PROCESS, startType, Win32Class.SERVICE_ERROR_NORMAL, binaryFilePath, null, IntPtr.Zero, ProcessDependencies(dependencies), GetServiceAccountName(account), null);
if (service == IntPtr.Zero)
{
if (Marshal.GetLastWin32Error() == 0x431)//ERROR_SERVICE_EXISTS
{
throw new ApplicationException("服务已存在！");
}
throw new ApplicationException("服务安装失败！");
}
//设置服务描述
Win32Class.SERVICE_DESCRIPTION sd = new Win32Class.SERVICE_DESCRIPTION();
try {
sd.description = Marshal.StringToHGlobalUni(description);
Win32Class.ChangeServiceConfig2(service, 1, ref sd);
} finally {
Marshal.FreeHGlobal(sd.description); //释放
}
} finally {
if (service != IntPtr.Zero)
{
Win32Class.CloseServiceHandle(service);
}
Win32Class.CloseServiceHandle(scm);
}
}
/// <summary>
/// 停止服务
/// </summary>
private static void StopService(IntPtr service)
{
ServiceState currState = GetServiceStatus(service);
if (currState == ServiceState.Stopped)
{
return;
}
if (currState != ServiceState.StopPending)
{
//递归停止从属服务
string[] childSvs = EnumDependentServices(service, EnumServiceState.Active);
if (childSvs.Length != 0)
{
IntPtr scm = OpenSCManager();
try {
foreach (string childSv in childSvs)
{
StopService(Win32Class.OpenService(scm, childSv, Win32Class.SERVICE_STOP));
}
} finally {
Win32Class.CloseServiceHandle(scm);
}
}
Win32Class.SERVICE_STATUS status = new Win32Class.SERVICE_STATUS();
Win32Class.ControlService(service, Win32Class.SERVICE_CONTROL_STOP, ref status); //发送停止指令
}
if (!WaitForStatus(service, ServiceState.Stopped, new TimeSpan(0, 0, 30)))
{
throw new ApplicationException("停止服务失败！");
}
}
private static bool ExistService(string serviceName)
{
IntPtr scmHandle = IntPtr.Zero;
IntPtr handle = IntPtr.Zero;
try
{
handle = OpenService(serviceName, out scmHandle);
if (handle == IntPtr.Zero)
{
int errCode = Marshal.GetLastWin32Error();
if (errCode == 0x424)
{
return(false);
}
}
}
catch (ServiceNotExistException e) { return(false); }
finally
{
Win32Class.CloseServiceHandle(scmHandle); //关闭SCM
Win32Class.CloseServiceHandle(handle); //关闭服务
}
return(true);
}
/// <summary>
/// 获取服务状态
/// </summary>
private static ServiceState GetServiceStatus(IntPtr service)
{
Win32Class.SERVICE_STATUS status = new Win32Class.SERVICE_STATUS();
if (!Win32Class.QueryServiceStatus(service, ref status))
{
throw new ApplicationException("获取服务状态出错！");
}
return(status.currentState);
}
/// <summary>
/// 打开服务管理器
/// </summary>
private static IntPtr OpenSCManager()
{
IntPtr scm = Win32Class.OpenSCManager(null, null, Win32Class.SC_MANAGER_ALL_ACCESS);
if (scm == IntPtr.Zero)
{
throw new ApplicationException("打开服务管理器失败！");
}
return(scm);
}
/// <summary>
/// 遍历从属服务
/// </summary>
/// <param name="serviceHandle"></param>
/// <param name="state">选择性遍历（活动、非活动、全部）</param>
private static string[] EnumDependentServices(IntPtr serviceHandle, EnumServiceState state)
{
int bytesNeeded = 0; //存放从属服务的空间大小，由API返回
int numEnumerated = 0; //从属服务数，由API返回
//先尝试以空结构获取，如获取成功说明从属服务为空，否则拿到上述俩值
if (Win32Class.EnumDependentServices(serviceHandle, state, IntPtr.Zero, 0, ref bytesNeeded, ref numEnumerated))
{
return(new string[0]);
}
if (Marshal.GetLastWin32Error() != 0xEA) //仅当错误值不是大小不够(ERROR_MORE_DATA)时才抛异常
{
throw new Win32Exception();
}
//在非托管区域创建指针
IntPtr structsStart = Marshal.AllocHGlobal(new IntPtr(bytesNeeded));
try
{
//往上述指针处塞存放从属服务的结构组，每个从属服务是一个结构
if (!Win32Class.EnumDependentServices(serviceHandle, state, structsStart, bytesNeeded, ref bytesNeeded, ref numEnumerated))
{
throw new Win32Exception();
}
string[] dependentServices = new string[numEnumerated];
int sizeOfStruct = Marshal.SizeOf(typeof(Win32Class.ENUM_SERVICE_STATUS)); //每个结构的大小
long structsStartAsInt64 = structsStart.ToInt64();
for (int i = 0; i < numEnumerated; i++)
{
Win32Class.ENUM_SERVICE_STATUS structure = new Win32Class.ENUM_SERVICE_STATUS();
IntPtr ptr = new IntPtr(structsStartAsInt64 + i * sizeOfStruct); //根据起始指针、结构次序和结构大小推算各结构起始指针
Marshal.PtrToStructure(ptr, structure); //根据指针拿到结构
dependentServices[i] = structure.serviceName; //从结构中拿到服务名
}
return(dependentServices);
}
finally
{
Marshal.FreeHGlobal(structsStart);
}
}
/// <summary>
/// 打开服务
/// </summary>
/// <param name="serviceName">服务名称</param>
/// <param name="scmHandle">服务管理器句柄。供调用者释放</param>
private static IntPtr OpenService(string serviceName, out IntPtr scmHandle)
{
scmHandle = OpenSCManager();
IntPtr service = Win32Class.OpenService(scmHandle, serviceName, Win32Class.SERVICE_ALL_ACCESS);
if (service == IntPtr.Zero)
{
int errCode = Marshal.GetLastWin32Error();
Win32Class.CloseServiceHandle(scmHandle); //关闭SCM
if (errCode == 0x424) //ERROR_SERVICE_DOES_NOT_EXIST
{
throw new ServiceNotExistException();
}
throw new Win32Exception();
}
return(service);
}
