in reply to Re^4: How to change the userid of a running external process
in thread How to change the userid of a running external process

Is your problem really about the uids of running processes or is all you really need just that one process can acess the files another process has produced?

Maybe it would suffice to have a suid-script that a process can invoke after it has created a file that does a chown so that another process can read it?

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