对于python：Windows相当于SIGALRM感兴趣的读者，本文将会是一篇不错的选择，我们将详细介绍wind和python，并为您提供关于asp.net-mvc–在MVCSignalR服务器和W

对于python：Windows相当于SIGALRM感兴趣的读者，本文将会是一篇不错的选择，我们将详细介绍wind和python，并为您提供关于asp.net-mvc – 在MVC SignalR服务器和Windows服务SIgnalR客户端之间的SignalR、cmd – Windows相当于“touch”(即node.js创建index.html的方法)、iis – Windows 7相当于“Add-WindowsFeature”、MSDN Webcast - Silverlight for Windows Phone 开发系列课程(1)：Windows Phone平台概况的有用信息。

• python：Windows相当于SIGALRM（wind和python）
• asp.net-mvc – 在MVC SignalR服务器和Windows服务SIgnalR客户端之间的SignalR
• cmd – Windows相当于“touch”(即node.js创建index.html的方法)
• iis – Windows 7相当于“Add-WindowsFeature”
• MSDN Webcast - Silverlight for Windows Phone 开发系列课程(1)：Windows Phone平台概况

python：Windows相当于SIGALRM（wind和python）

我有这个装饰器：

def timed_out(timeout):    def decorate(f):        if not hasattr(signal, "SIGALRM"):            return f        def handler(signum, frame):            raise TimedOutExc()        @functools.wraps(f)        def new_f(*args, **kwargs):            old = signal.signal(signal.SIGALRM, handler)            signal.alarm(timeout)            try:                result = f(*args, **kwargs)            finally:                signal.signal(signal.SIGALRM, old)            signal.alarm(0)            return result        new_f.func_name = f.func_name        return new_f    return decorate

该代码仅能在linux上执行任何操作，就像在Windows上一样SIGALRM。在Windows中也可以使用此代码的最简单方法是什么？

答案1

它不是很漂亮，但是我不得不以跨平台的方式做类似的事情，于是我想到了使用单独的线程。基于信号的系统无法在所有平台上可靠地工作。

此类的使用可以包装在装饰器中，也可以制成with上下文处理程序。

YMMV。

#!/usr/bin/env python2.7import time, threadingclass Ticker(threading.Thread):  """A very simple thread that merely blocks for :attr:`interval` and sets a  :class:`threading.Event` when the :attr:`interval` has elapsed. It then waits  for the caller to unset this event before looping again.  Example use::    t = Ticker(1.0) # make a ticker    t.start() # start the ticker in a new thread    try:      while t.evt.wait(): # hang out til the time has elapsed        t.evt.clear() # tell the ticker to loop again        print time.time(), "FIRING!"    except:      t.stop() # tell the thread to stop      t.join() # wait til the thread actually dies  """  # SIGALRM based timing proved to be unreliable on various python installs,  # so we use a simple thread that blocks on sleep and sets a threading.Event  # when the timer expires, it does this forever.  def __init__(self, interval):    super(Ticker, self).__init__()    self.interval = interval    self.evt = threading.Event()    self.evt.clear()    self.should_run = threading.Event()    self.should_run.set()  def stop(self):    """Stop the this thread. You probably want to call :meth:`join` immediately    afterwards    """    self.should_run.clear()  def consume(self):    was_set = self.evt.is_set()    if was_set:      self.evt.clear()    return was_set  def run(self):    """The internal main method of this thread. Block for :attr:`interval`    seconds before setting :attr:`Ticker.evt`    .. warning::      Do not call this directly!  Instead call :meth:`start`.    """    while self.should_run.is_set():      time.sleep(self.interval)      self.evt.set()

asp.net-mvc – 在MVC SignalR服务器和Windows服务SIgnalR客户端之间的SignalR

app.MapSignalR("/signalr",new HubConfiguration());

NET client code that specifies the URL
 var hubConnection = new HubConnection("http://contoso.com/signalr",useDefaultUrl: false);

protected override async void OnStart(string[] args)
        {
            eventLog1.WriteEntry("In OnStart");
            try
            {
                var hubConnection = new HubConnection("http://www.savitassa.com/signalr",useDefaultUrl: false);
                IHubProxy alphaProxy = hubConnection.CreateHubProxy("AlphaHub");

                await hubConnection.Start();

                await alphaProxy.Invoke("Hello","Message from Service");
            }
            catch (Exception ex)
            {
                eventLog1.WriteEntry(ex.Message);
            }
        }

public class AlphaHub : Hub
    {
        public void Hello(string message)
        {
            // We got the string from the Windows Service 
            // using SignalR. Now need to send to the clients
            Clients.All.addNewMessagetoPage(message);

            // Send message to Windows Service

        }

cmd – Windows相当于“touch”(即node.js创建index.html的方法)

'touch' is not recognized as an internal or external command,operable program or batch file.

touch index.html app.js style.css

type nul > your_file.txt

echo.>your_file.txt

iis – Windows 7相当于“Add-WindowsFeature”

@ECHO OFF
FOR /F "usebackq tokens=3,*" %%a in (`dism /Online /Get-Features ^| find /i "name"`) do (
    dism /Online /Get-FeatureInfo /FeatureName:"%%b" | find /i "name"
)

MSDN Webcast - Silverlight for Windows Phone 开发系列课程(1)：Windows Phone平台概况

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