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    SubjectRe: thread group comments


    On 1 Sep 2000, Ulrich Drepper wrote:

    > "Andi Kleen" <ak@suse.de> writes:
    >
    > > I've been thinking about how to best get rid of the thread manager for
    > > thread creation in LinuxThreads. It is currently needed to do the wait.
    >
    > If you get rid of the manager thread (the +1 thread) then you have
    > another problem: you cannot send a signal explicitly to this thread
    > (to implement pthread_kill). The PID of this initial thread is now
    > used as the PID of the thread group.

    Well, that can be solved by having a separate "threadkill()" system call.

    But I'd much rather just have the "n+1" thing. The overhead is basically
    nonexistent, and it simplifies so many things.

    Linus

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