Waitforexit统一中断正在运行的应用程序 [英] Waitforexit interrupt my running application in unity

问题描述

我正在尝试统一运行exe应用程序以执行某些功能，并且统一运行时该exe文件会从我的麦克风接收输入，因此我必须等到它退出后再使用waitforexit很好，允许exe接受输入但这不是很好，因为在exe运行过程中我的统一应用程序停止运行，直到我的exe完成为止，我想在我的exe运行时统一执行其他操作.

这是我的代码:-

System.Diagnostics.Process p =新的System.Diagnostics.Process();

    p.StartInfo = new System.Diagnostics.ProcessStartInfo("E:\\app\\dist\\app.exe");
    p.StartInfo.WorkingDirectory = @"\Assets\\app\\dist\\app.exe";
    p.StartInfo.CreateNoWindow = true;
    p.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
    p.Start();
    p.WaitForExit();

解决方案

您不必使用WaitForExit，因为它阻塞了主线程.对于您的问题，有两种解决方法:

1 .将EnableRaisingEvents设置为true.订阅 事件，并使用该事件确定打开的程序何时关闭.使用布尔标志来确定在Update函数中它是否仍处于打开状态.

bool processing = false;

void Start()
{
    processing = true;

    Process p = new Process(); ;
    p.StartInfo = new System.Diagnostics.ProcessStartInfo("E:\\app\\dist\\app.exe");
    p.StartInfo.WorkingDirectory = @"\Assets\\app\\dist\\app.exe";
    p.StartInfo.CreateNoWindow = true;
    p.EnableRaisingEvents = true;
    p.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
    p.Exited += new EventHandler(OnProcessExit);
    p.Start();
}

private void OnProcessExit(object sender, EventArgs e)
{
    processing = false;
}


void Update()
{
    if (processing)
    {
        //Still processing. Keep reading....
    }
}

---

2 .继续您的WaitForExit ，但只能在新的Thread中使用该代码，以免阻塞或冻结Unity的主线程./p>

//Create Thread
Thread thread = new Thread(delegate ()
{
    //Execute in a new Thread
    Process p = new Process(); ;
    p.StartInfo = new System.Diagnostics.ProcessStartInfo("E:\\app\\dist\\app.exe");
    p.StartInfo.WorkingDirectory = @"\Assets\\app\\dist\\app.exe";
    p.StartInfo.CreateNoWindow = true;
    p.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
    p.Start();
    p.WaitForExit();

    //....
});
//Start the Thread and execute the code inside it
thread.Start();

请注意，您不能通过此新线程使用Unity的API.如果要这样做，请使用UnityThread.executeInUpdate.参见这以获取更多信息.

I'm trying to run an exe application in unity to perform some function and that exe file will take an input from my microphone when running in unity so i must wait until it exit while using waitforexit is nice to allow exe takes input but it's not good because my unity app during the exe running becomes stopped till it my exe finish and i want perform somethings else in unity while my exe running.

this is my code :-

System.Diagnostics.Process p = new System.Diagnostics.Process();

    p.StartInfo = new System.Diagnostics.ProcessStartInfo("E:\\app\\dist\\app.exe");
    p.StartInfo.WorkingDirectory = @"\Assets\\app\\dist\\app.exe";
    p.StartInfo.CreateNoWindow = true;
    p.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
    p.Start();
    p.WaitForExit();

解决方案

You don't have to use WaitForExit since it's blocking the main Thread. There are two workarounds for your issue:

1.Set EnableRaisingEvents to true. Subscribe to the Exited event and use that to determine when the opened program has closed. Use a boolean flag to determine if it is still opened or not in the Update function.

bool processing = false;

void Start()
{
    processing = true;

    Process p = new Process(); ;
    p.StartInfo = new System.Diagnostics.ProcessStartInfo("E:\\app\\dist\\app.exe");
    p.StartInfo.WorkingDirectory = @"\Assets\\app\\dist\\app.exe";
    p.StartInfo.CreateNoWindow = true;
    p.EnableRaisingEvents = true;
    p.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
    p.Exited += new EventHandler(OnProcessExit);
    p.Start();
}

private void OnProcessExit(object sender, EventArgs e)
{
    processing = false;
}


void Update()
{
    if (processing)
    {
        //Still processing. Keep reading....
    }
}

---

2.Continue with your WaitForExit but only use that code in a new Thread so that it doesn't block or freeze Unity's main Thread.

//Create Thread
Thread thread = new Thread(delegate ()
{
    //Execute in a new Thread
    Process p = new Process(); ;
    p.StartInfo = new System.Diagnostics.ProcessStartInfo("E:\\app\\dist\\app.exe");
    p.StartInfo.WorkingDirectory = @"\Assets\\app\\dist\\app.exe";
    p.StartInfo.CreateNoWindow = true;
    p.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
    p.Start();
    p.WaitForExit();

    //....
});
//Start the Thread and execute the code inside it
thread.Start();

Note that you can't use Unity's API from this new Thread. If you want to do so, use UnityThread.executeInUpdate. See this for more information.

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