捕获控制台退出C#我有一个控制台应用程序,其中包含了相当多的线程。有些线程监视某些条件,如果它们是真,则终止程序。这种终止可以在任何时候发生。我需要一个可以在程序关闭时触发的事件,以便清理所有其他线程并正确关闭所有文件句柄和连接。我不确定.NET框架中是否已经内置了一个,所以我在编写自己的框架之前先问一下。我想知道是否有这样的活动:MyConsoleProgram.OnExit += CleanupBeforeExit;
3 回答
慕斯王
TA贡献1864条经验 获得超2个赞
using System;using System.Collections.Generic;using System.Linq;using System.Runtime.InteropServices;using System.Text;using System.Threading;namespace TestTrapCtrlC {
public class Program {
static bool exitSystem = false;
#region Trap application termination
[DllImport("Kernel32")]
private static extern bool SetConsoleCtrlHandler(EventHandler handler, bool add);
private delegate bool EventHandler(CtrlType sig);
static EventHandler _handler;
enum CtrlType {
CTRL_C_EVENT = 0,
CTRL_BREAK_EVENT = 1,
CTRL_CLOSE_EVENT = 2,
CTRL_LOGOFF_EVENT = 5,
CTRL_SHUTDOWN_EVENT = 6
}
private static bool Handler(CtrlType sig) {
Console.WriteLine("Exiting system due to external CTRL-C, or process kill, or shutdown");
//do your cleanup here
Thread.Sleep(5000); //simulate some cleanup delay
Console.WriteLine("Cleanup complete");
//allow main to run off
exitSystem = true;
//shutdown right away so there are no lingering threads
Environment.Exit(-1);
return true;
}
#endregion
static void Main(string[] args) {
// Some boilerplate to react to close window event, CTRL-C, kill, etc
_handler += new EventHandler(Handler);
SetConsoleCtrlHandler(_handler, true);
//start your multi threaded program here
Program p = new Program();
p.Start();
//hold the console so it doesn’t run off the end
while (!exitSystem) {
Thread.Sleep(500);
}
}
public void Start() {
// start a thread and start doing some processing
Console.WriteLine("Thread started, processing..");
}
}}
萧十郎
TA贡献1815条经验 获得超13个赞
Application.ApplicationExit += CleanupBeforeExit;
AppDomain.CurrentDomain.DomainUnload += CleanupBeforeExit;
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