Re: proced: ppid of process ID 0 can be 0

[Stefan Monnier]

>> To me the definition of "root" is "has no parent", so the two are
>> equivalent.
> Same here.  But "having no parent" and "found zero in /proc/NNN/stat"
> is not necessarily the same.
>> I could live with a predicate process-tree-root-p, but I'd expect it
>> to just check for the absence of a parent.
> Me too.  However, that check is OS-dependent, so I don't think it
> should be in Lisp.

Indeed, it should be in system-process-attributes which is already
OS-dependent.


        Stefan