On Thu, Jan 12, 2012 at 06:56, André Scholz <andre.sch...@uni-bremen.de>wrote:
> gid <- createProcessGroup pid > > but i get the error message: > "createProcessGroup: permission denied" > It's only going to work on BSDish systems; on systems using the SVID/POSIX model, only the current process can be converted into a process group leader, and only if it isn't already one. I need to go look at the implementation of System.Process, though; the documentation strongly implies that (a) it already creates a process group, at least on UNIX (there's an additional step needed to do so on Windows?) and (b) terminateProcess is claimed to signal the process group, as is interruptProcessGroupOf (the documentation is clearer here). [[Having looked: the documentation for terminateProcess is incorrect and should not mention process groups, but the documentation for interruptProcessGroupOf is correct. Maybe that function will work for you?]] In any case, I would not mix System.Process and System.Posix.Process. I'd probably use the latter, but that's because it's closer to what I'm used to as a Unix/SVID/POSIX programmer. -- brandon s allbery allber...@gmail.com wandering unix systems administrator (available) (412) 475-9364 vm/sms
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