>From Al Viro on Tuesday, 31 July, 2007:
>On Mon, Jul 30, 2007 at 10:31:13PM -0500, Joseph Pingenot wrote:
>> >From Joseph Pingenot on Monday, 30 July, 2007:
>> >From Al Viro on Tuesday, 31 July, 2007:
>> >>On Mon, Jul 30, 2007 at 09:16:16PM -0500, Joseph Pingenot wrote:
>> >>> I was trying to use inotify to watch process changes (especially process
>> >>> termination) by watching /proc/<pid>.
>> >>> Sadly, although I could see something reading various files, nothing
>> >>> was issued when the process I was watching exited and the directory
>> >>> went away.
>> >>> Is this intentional, or a bug?
>> >>It's a bug you intend to introduce in your program... IOW, don't
>> >>do that.
>> >More background, please?
>> >What's the way to check for a process exiting without spinning?
>> I should also specify that the process being waited on is not a
>> child process-it's just some other process on the system.
>Umm... Any details on intended use? IOW, is that "I want to write
>an utility that would wait for given PID to exit, just for the hell
>of it" or is there something you are trying to implement using that?
I'm trying to implement pwait. It blocks until a specified PID exits,
and then it exits.
You can use it to do other stuff after a program finishes.
While we're on the subject, is there some way to receive notification
that some aspect of a process changes (in this case, stopping using
CPU, but not exiting).
Thanks for the time to help me figure this out.
-Joseph
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