Messages in this thread | | | Subject | Re: [RFC] new syscall to allow notification when arbitrary pids die | From | Doug McNaught <> | Date | 12 May 2003 09:23:12 -0400 |
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Chris Friesen <cfriesen@nortelnetworks.com> writes:
> Doug McNaught wrote:
> > Rather than a new syscall, what about a magic file or device that you > > can poll()? > > This is definately an option to consider. The problem that I see with > this is that when you are trying to monitor large numbers of processes > you have to worry about running out of file descriptors, and select() > is no longer as happy.
No reason to have one FD per process monitored. Just a single FD, to which you can write() a control string to to add or remove a process from the list, and for which read() yields a small data record describing the process event that just happened. It's a bit plan-9ish but there's nothing wrong with that...
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