perl 进程之间的 perl Win32 信号处理 [英] perl Win32 Signal Handling between perl processes
问题描述
我在 Windows 中有几个长期运行的 perl 脚本(草莓 perl).
I have a couple long running perl scripts in windows (strawberry perl) that I'm working on.
- 第一个进程是父监控进程.它每 24 小时重启一次子进程，并将始终运行.
- 第二个是子付款处理脚本.此进程必须在关闭之前完成其正在执行的任何操作.
据我所知，信号处理 在 win32 上的 perl 中不起作用并且不应该依赖它.还有其他方法可以处理信号吗?Win32::Process::Kill 似乎在不让它安全关闭的情况下杀死进程.
It's my understanding that signal handling doesn't work in perl on win32 and that it shouldn't be relied on. Is there some other way that I can handle a signal? Win32::Process::Kill seems to kill the process without letting it safely shut down.
这是我尝试过的信号处理...
This is the signal handling that I've tried...
#Child
my $interrupted = 0;
$SIG{INT} = sub{$interrupted = 1;};
while(!$interrupted){
#keep doing your thing, man
}
#Parent
my $pid = open2(\*CHLD_OUT,\*CHLD_IN,'C:\\strawberry\\perl\\bin\\perl.exe','process.pl');
kill INT=>$pid;
waitpid($pid,0);
我唯一能想到的就是在两个进程之间打开一个套接字，并通过该套接字写入消息.但一定有更容易的事情.有人知道可以做到这一点的任何模块吗?
The only other thing I can think of is to open a socket between the two processes and write messages across the socket. But there must be something easier. Anyone know of any module that can do this?
更新
我已经开始致力于通过 IO::Socket::INET 和 IO::Select 创建信号"机制打开套接字.这似乎有效，我正在考虑编写一个与 AnyEvent 兼容的模块.但是我仍然对不需要打开侦听端口并且不需要服务器/客户端关系的实现感兴趣.是否可以通过在 Windows 中订阅和触发自定义事件来做到这一点?
I've started working on creating a "signal" mechanism via IO::Socket::INET and IO::Select by opening a socket. This appears to work and I'm thinking of writing a module that is compatible with AnyEvent. But I'm still interested in an implementation that doesn't require opening a listening port and that doesn't require a server/client relationship. Is it possible to do this by subscribing to and firing custom events in windows?
推荐答案
使用 ActiveState Perl 我通过 Win32::Event 模块.
With ActiveState Perl I use windows native events through the Win32::Event module.
这样你就不需要实现任何花哨的东西，你甚至可以让你的脚本与本机应用程序交互.我在许多应用程序中使用这个模块.
This way you don't need to implement anything fancy and you can even have your script interract with native applications. I use this module in many applications.
因为它是 Win32::IPC 的一部分，它使用原生代码，它可能不适用于 Strawberry Perl.如果是这种情况，您可以尝试从 CPAN 来源编译它.如果您有很多基于 Windows perl 的软件，可能值得一试.
Since it is part of Win32::IPC, which uses native code, it may not be available for Strawberry Perl. If that is the case you could try compiling it from the CPAN sources. It might be worth a try if you have lots of Windows perl-based software.
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