我需要对大约20个完全无人值守的安装进行排队(使用C#winform应用程序)。每个安装都有自己的INI文件(手动创建),该文件包含每个安装程序对此过程所需的参数的正确信息(在执行该程序之前读入)。我遇到许多应用程序的问题,当执行setup.exe时,进程立即关闭并启动其MSI(如果适用),导致我的程序执行下一个安装,假设第一个完成。我已经阅读了类似的问题窥探网络,但在这个问题上没有真正的解决方案......(一些解决方法包括使用带有/ Wait选项的批处理文件,它应该将setup.exe保留在内存中直到其MSI完成)。必须启动setup.exe,因为它们包含bootstrappers。
我有什么选择来解决这个难题?
以下是一些演示过程的示例代码:
foreach (ListViewItem itm in this.lstSoftwares.Items)
{
try
{
if (itm.Checked)
{
lblStatus.Text = "Status: Installing " + current.ToString() + " of " + count.ToString();
string InstallPath = Path.Combine(Application.StartupPath, "Software",
itm.Text, itm.Tag.ToString());
string CommandLine = itm.SubItems[1].Text;
Process process = new Process();
process.StartInfo.FileName = InstallPath;
process.StartInfo.Arguments = CommandLine;
process.StartInfo.WindowStyle = ProcessWindowStyle.Normal;
process.Start();
process.WaitForExit();
this.lstSoftwares.Items[i].SubItems[2].Text = "Complete";
current++;
}
更新
在waitforexit()之后我正在使用一个循环来检查msiexec是否正在运行:
private bool MSIRunning()
{
try
{
using (var mutex = Mutex.OpenExisting(@"Global\_MSIExecute"))
{
return true;
}
}
catch (Exception)
{
return false;
}
}
这是我的选择中的一个黑客攻击,但到目前为止这个伎俩...
答案 0 :(得分:0)
在循环中的process.start之后查询MSI Mutex(检查Mutex是否每3秒运行一次,如果没有返回并继续下一次安装)似乎解决了这个问题(上面注明)。
答案 1 :(得分:0)
已经回答了,但我对MSI互斥检查的执行稍微强一些:
public bool IsMsiExecFree(TimeSpan maxWaitTime)
{
_logger.Info(@"Waiting up to {0}s for Global\_MSIExecute mutex to become free...", maxWaitTime.TotalSeconds);
// 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,
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();
}
_logger.Info(@"Global\_MSIExecute mutex is free, or {0}s has elapsed.", maxWaitTime.TotalSeconds);
return isMsiExecFree;
}