Process.GetProcessesByName函数在Mono和Linux中不起作用

Question

我正在使用C＃进行Mono和Linux项目。我必须确保不能运行同一程序的两个实例。所以，我有一个看起来像这样的函数

private static bool CanRun()

  {

     bool canRun = true;

     string currProcessName = Process.GetCurrentProcess().ProcessName;

     string currProcessWorkingDir = Process.GetCurrentProcess().MainModule.FileName;

     int currProcessId = Process.GetCurrentProcess().Id;



     Process[] matchingProcesses = null;

     try

     {

        // Find processes that match our own process name.

        matchingProcesses = Process.GetProcessesByName(currProcessName);



        if ( matchingProcesses.Length == 1)

        {

           // The matching process list will contain ourselves, so filter out ourself by ID. Then,

           // check the working folder for an exact match to ourselves.

           if (matchingProcesses.Any(matchingProcess =>

              matchingProcess.ProcessName == currProcessName))

           {

              canRun = false;

           }

        }

     }

     catch (System.InvalidOperationException) { }

     catch (System.ComponentModel.Win32Exception) { }

     return canRun;

  }

我的问题是，matchingProcesses = Process.GetProcessesByName（currProcessName）始终返回一个数组。这意味着当我有一个正在运行的进程实例时，当我尝试运行第二个实例时，我仍然得到一个实例数组，因此我的函数失败了。关于我可能做错的任何建议吗？

Answer 1

类似这样的方法应该起作用：

private static bool CanRun2()
{
    var canRun = true;
    try
    {
        var currProcess = Process.GetCurrentProcess();
        var currProcessName = currProcess.ProcessName;
        var matchingProcesses = Process.GetProcessesByName(currProcessName);
        canRun = !matchingProcesses.Any((Process p) => p.Id != currProcess.Id);
    }
    catch (Exception ex)
    {
        Console.WriteLine(ex.Message);
        canRun = false;
    }
    return canRun;
}

注意：请记住ProcessName是相当通用的，在这种情况下会是mono-sgen32或mono-sgen64，如果您正在运行其他mono应用，则必须添加其他检查...