Re: NSTask terminates when NSApplication exits
Re: NSTask terminates when NSApplication exits
- Subject: Re: NSTask terminates when NSApplication exits
- From: Ken Thomases <email@hidden>
- Date: Thu, 19 Jan 2012 13:08:45 -0600
On Jan 19, 2012, at 12:49 PM, Jens Alfke wrote:
> On Jan 19, 2012, at 10:10 AM, Scott Ribe wrote:
>
>> Not true. It looks like the case at a cursory level because session management does this when you're in the terminal. There are various ways to arrange for a process to exit when its parent exits. But it is *not* the case that a process is automatically killed when its parent exits.
>
> Huh; you learn something new every day!
>
> In addition to shell behavior you mention, I also see this when Xcode crashes and takes down the app I’m debugging. But I suppose Xcode configures the process it launches to work that way?
This is probably because Xcode is using a pseudo-terminal device as the subprocess's output, so it can capture it and show it in the console window, and thus the subprocess has a controlling terminal, which is closed when Xcode crashes, which delivers SIGHUP to the subprocess. If a process hasn't specifically arranged otherwise, it will be killed by the SIGHUP.
Regards,
Ken
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden