不轮询观察进程生命周期很慢？
I was using a technique described by apple for Observing Process Lifetimes Without Polling to Observe Arbitrary Processes.
I used exact source code mentioned there and with all three techniques. But the response is very slow and sometimes even does not work.
Is there anything missing in documentation?
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啊……你给了我我正在寻找的关键字。您想要监控进程，而不是应用程序。如果您尝试捕获除常规 Macintosh 应用程序之外的非 AppKit 应用程序或命令行进程，则无法使用 NSWorkspace 解决方案。
尝试关注 kqueue 解决方案。
如果这不好，请查看 Apple 技术说明中的“面向服务的替代方案”部分。如果您重新考虑一下您的方法，您也许可以使用 launchd 来完成您想要做的事情。
Ahhhh... you gave me the keyword I was looking for. You want to monitor processes, not apps. You can't use the NSWorkspace solution if you are trying to catch non-AppKit apps or command line processes in addition to regular Macintosh apps.
Try focusing on the kqueue solution.
And if that isn't good, look at "The Service-Oriented Alternative" section in your Apple Tech Note. If you rethink your approach a bit, you might be able to use launchd to accomplish what you're trying to do.