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    SubjectRe: inotify and /proc/<pid>
    On Mon, Jul 30, 2007 at 10:40:59PM -0500, Joseph Pingenot wrote:
    > 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.
    >

    ptrace with options set to PTRACE_O_TRACEEXIT?

    --Kyle
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