如何测试另一个安装是否已在进行中

本文关键字：是否 安装 进行中 另一个 何测试 测试 | 更新日期: 2023-09-27 17:47:21

>假设我正在尝试在Windows上自动安装某些内容，并且我想在尝试安装之前尝试测试是否正在进行其他安装。我无法控制安装程序，必须在自动化框架中执行此操作。有没有更好的方法来做到这一点，一些win32 api？，而不仅仅是测试msiexec是否正在运行？

[更新2]

改进了我以前用来直接访问互斥锁的代码，这要可靠得多：

using System.Threading;
[...]
/// <summary>
/// Wait (up to a timeout) for the MSI installer service to become free.
/// </summary>
/// <returns>
/// Returns true for a successful wait, when the installer service has become free.
/// Returns false when waiting for the installer service has exceeded the timeout.
/// </returns>
public static bool WaitForInstallerServiceToBeFree(TimeSpan maxWaitTime)
{
    // The _MSIExecute mutex is used by the MSI installer service to serialize installations
    // and prevent multiple MSI based installations happening at the same time.
    // For more info: http://msdn.microsoft.com/en-us/library/aa372909(VS.85).aspx
    const string installerServiceMutexName = "Global''_MSIExecute";
    try
    {
        Mutex MSIExecuteMutex = Mutex.OpenExisting(installerServiceMutexName, 
            System.Security.AccessControl.MutexRights.Synchronize | System.Security.AccessControl.MutexRights.Modify);
        bool waitSuccess = MSIExecuteMutex.WaitOne(maxWaitTime, false);
        MSIExecuteMutex.ReleaseMutex();
        return waitSuccess;
    }
    catch (WaitHandleCannotBeOpenedException)
    {
        // Mutex doesn't exist, do nothing
    }
    catch (ObjectDisposedException)
    {
        // Mutex was disposed between opening it and attempting to wait on it, do nothing
    }
    return true;
}

如何测试另一个安装是否已在进行中

请参阅 MSDN 上 _MSIExecute Mutex 的说明。

使用上面的代码，我遇到了一个未经处理的异常。 我交叉引用了这篇文章，也就是这篇文章

这是我更新的代码：

  /// <summary>
/// Wait (up to a timeout) for the MSI installer service to become free.
/// </summary>
/// <returns>
/// Returns true for a successful wait, when the installer service has become free.
/// Returns false when waiting for the installer service has exceeded the timeout.
/// </returns>
public static bool IsMsiExecFree(TimeSpan maxWaitTime)
{
    // The _MSIExecute mutex is used by the MSI installer service to serialize installations
    // and prevent multiple MSI based installations happening at the same time.
    // For more info: http://msdn.microsoft.com/en-us/library/aa372909(VS.85).aspx
    const string installerServiceMutexName = "Global''_MSIExecute";
    Mutex MSIExecuteMutex = null;
    var isMsiExecFree = false;
    try
    {
            MSIExecuteMutex = Mutex.OpenExisting(installerServiceMutexName,
                            System.Security.AccessControl.MutexRights.Synchronize);
            isMsiExecFree = MSIExecuteMutex.WaitOne(maxWaitTime, false);
    }
        catch (WaitHandleCannotBeOpenedException)
        {
            // Mutex doesn't exist, do nothing
            isMsiExecFree = true;
        }
        catch (ObjectDisposedException)
        {
            // Mutex was disposed between opening it and attempting to wait on it, do nothing
            isMsiExecFree = true;
        }
        finally
        {
            if(MSIExecuteMutex != null && isMsiExecFree)
            MSIExecuteMutex.ReleaseMutex();
        }
    return isMsiExecFree;
}

我一直在研究这个问题 - 大约一个星期 - 使用您的笔记（谢谢）和其他网站的笔记 - 太多了，无法命名（谢谢大家）。

我偶然发现了一些信息，这些信息显示该服务可以产生足够的信息来确定 MSIEXEC 服务是否已在使用中。该服务是"msiserver" - Windows安装程序 - 它的信息既是状态又是接受停止。

以下 VBScript 代码对此进行检查：

Set objWMIService = GetObject("winmgmts:''.'root'cimv2")
Check = False
Do While Not Check
   WScript.Sleep 3000
   Set colServices = objWMIService.ExecQuery("Select * From Win32_Service Where Name="'msiserver'")
   For Each objService In colServices
      If (objService.Started And Not objService.AcceptStop)  
         WScript.Echo "Another .MSI is running."
      ElseIf ((objService.Started And objService.AcceptStop) Or Not objService.Started) Then
         WScript.Echo "Ready to install an .MSI application."
         Check = True
      End If
   Next
Loop
相关文章：