nosing around the clone() flags and i notice the flag CLONE_PARENT,
which sets the parent of the new child to the same parent as that of
the calling process, but i'm not sure when you'd use such a thing.
as i read it, when a process creates a thread, the parent of that
new thread is the creating process (which, in this case, becomes the
thread group leader, right?). so if that original process creates
*all* of the new threads in that group, then all of those new threads
will have the same parent pointer and there's no need for the flag
CLONE_PARENT.
on the other hand, if one of those new threads *itself* creates a
new thread but wants that new thread to appear as a normal thread in
the thread group, it can use the CLONE_PARENT flag.
is that the rationale behind that flag? because i can't think of
another one offhand. thanks.
rday
--
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Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry:
Have classroom, will lecture.
http://crashcourse.ca Waterloo, Ontario, CANADA
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