我最近编写了一个小类(class)来帮助我更改 Windows 服务的恢复选项(我在网上某处找到的大部分代码)。该代码为第一次、第二次和后续失败创建一个 FailureAction。每个 Failure 对象都包含一个类型(None、Restart、Reboot、RunCommand)和一个以毫秒为单位的延迟 (int)。这些对象打包在结构中并传递到 ChangeServiceConfig2 (WinAPI P/Invoke)。但是，当我实际右键单击控制台上的服务并转到“恢复”选项卡时，您只能为所有故障(第一次、第二次和后续)设置一次延迟(“重启服务器”字段)。当我以编程方式设置它时，它会延迟第一个 FailureAction 并忽略所有其他操作。有谁知道为什么会这样？当只使用第一个时，为什么我们必须为所有 FailureAction 对象传递一个延迟值？我是不是误会了什么？

此外，设置 dwResetPeriod/"Reset fail count after"似乎没有任何效果。

代码:

public class ServiceConfigurator
{
    private const int SERVICE_ALL_ACCESS = 0xF01FF;
    private const int SC_MANAGER_ALL_ACCESS = 0xF003F;
    private const int SERVICE_CONFIG_DESCRIPTION = 0x1;
    private const int SERVICE_CONFIG_FAILURE_ACTIONS = 0x2;
    private const int SERVICE_NO_CHANGE = -1;
    private const int ERROR_ACCESS_DENIED = 5;

    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
    private struct SERVICE_FAILURE_ACTIONS
    {
        public int dwResetPeriod;
        [MarshalAs(UnmanagedType.LPWStr)]
        public string lpRebootMsg;
        [MarshalAs(UnmanagedType.LPWStr)]
        public string lpCommand;
        public int cActions;
        public IntPtr lpsaActions;
    }

    [DllImport("advapi32.dll", EntryPoint = "ChangeServiceConfig2")]
    private static extern bool ChangeServiceFailureActions(IntPtr hService, int dwInfoLevel, [MarshalAs(UnmanagedType.Struct)] ref SERVICE_FAILURE_ACTIONS lpInfo);
    [DllImport("advapi32.dll", EntryPoint = "ChangeServiceConfig2")]
    private static extern bool ChangeServiceDescription(IntPtr hService, int dwInfoLevel, [MarshalAs(UnmanagedType.Struct)] ref SERVICE_DESCRIPTION lpInfo);

    [DllImport("kernel32.dll")]
    private static extern int GetLastError();

    private IntPtr _ServiceHandle;
    public IntPtr ServiceHandle { get { return _ServiceHandle; } }

    public ServiceConfigurator(ServiceController svcController)
    {
        this._ServiceHandle = svcController.ServiceHandle.DangerousGetHandle();
    }

    public void SetRecoveryOptions(FailureAction pFirstFailure, FailureAction pSecondFailure, FailureAction pSubsequentFailures, int pDaysToResetFailureCount = 0)
    {
        int NUM_ACTIONS = 3;
        int[] arrActions = new int[NUM_ACTIONS * 2];
        int index = 0;
        arrActions[index++] = (int)pFirstFailure.Type;
        arrActions[index++] = pFirstFailure.Delay;
        arrActions[index++] = (int)pSecondFailure.Type;
        arrActions[index++] = pSecondFailure.Delay;
        arrActions[index++] = (int)pSubsequentFailures.Type;
        arrActions[index++] = 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;
        }
    }
}

特雷弗

最佳答案

sc 命令提供了一种自动化服务管理的好方法。要从代码中调用，只需执行 Process.Start("sc", "args") 并在需要结果时重定向输出。

这一行告诉服务在等待 1 分钟后重新启动两次。失败时。一天过去后，它会重置失败计数。您还可以将其设置为在后续失败时运行程序等。

sc failure myservice reset= 86400 actions= restart/60000/restart/60000//

http://technet.microsoft.com/en-us/library/cc742019(v=ws.10).aspx

关于c# - 在 Windows 服务上设置恢复选项，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/6364700/