c# - 检测控制台应用程序何时关闭/终止？

Question

我想为我的控制台应用程序安全退出，该应用程序将使用单声道在 linux 上运行，但我找不到解决方案来检测信号是否发送到它或用户是否按下了 ctrl+c。

在 Windows 上有内核函数 SetConsoleCtrlHandler 可以完成这项工作，但它不适用于单声道。

如何在我的控制台应用程序上获得关闭事件以安全退出它？

Answer 1

您需要使用 Mono.UnixSignal，Jonathan Pryor 发布了一个很好的示例:http://www.jprl.com/Blog/archive/development/mono/2008/Feb-08.html

Mono 页面上还有一个较短的示例:FAQ / Technical / Operating System Questions / Signal Handling :

// Catch SIGINT and SIGUSR1
UnixSignal[] signals = new UnixSignal [] {
    new UnixSignal (Mono.Unix.Native.Signum.SIGINT),
    new UnixSignal (Mono.Unix.Native.Signum.SIGUSR1),
};

Thread signal_thread = new Thread (delegate () {
    while (true) {
        // Wait for a signal to be delivered
        int index = UnixSignal.WaitAny (signals, -1);

        Mono.Unix.Native.Signum signal = signals [index].Signum;

        // Notify the main thread that a signal was received,
        // you can use things like:
        //    Application.Invoke () for Gtk#
        //    Control.Invoke on Windows.Forms
        //    Write to a pipe created with UnixPipes for server apps.
        //    Use an AutoResetEvent

        // For example, this works with Gtk#    
        Application.Invoke (delegate () { ReceivedSignal (signal); });
    }});