[tor-bugs] #8746 [Tor]: Tor tries to kill nonexistent proxy PID on second SIGINT

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#8746: Tor tries to kill nonexistent proxy PID on second SIGINT
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     Reporter:  dcf      |      Owner:
         Type:  defect   |     Status:  new
     Priority:  normal   |  Milestone:  Tor: 0.2.5.x-final
    Component:  Tor      |    Version:
   Resolution:           |   Keywords:  tor-client, pt, 024-deferrable,
Actual Points:           |  025-triaged
       Points:           |  Parent ID:
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Comment (by nickm):

 I think there's a fix in my branch "bug8746", though I still need to write
 more tests for it.

 On unix, it just does "use waitpid properly".  It dumps the "waitpid and
 discard" loop in main.c, and instead does a proper callback-notification
 thing.

 On windows, it terminates the process by handle, not by pid.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8746#comment:9>
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