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Subject: |
Re: [Merge] ~epics-core/epics-base/+git/Com:thread-join into epics-base:7.0 |
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From: |
mdavidsaver via Core-talk <[email protected]> |
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To: |
mdavidsaver <[email protected]> |
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Date: |
Wed, 19 Jun 2019 17:16:26 -0000 |
> This almost seems too simple...
Unfortunately, yes. I think this is open to races involving re-use of thread IDs (and maybe use after free?). This potential is why the RTEMS version uses a barrier to prevent the thread from actually returning until it is joined (the rtems_id stays valid). Alternately, as with WIN32, allocated a separate epicsThreadId, with a ref. counter, that can outlive the OS task.
--
https://code.launchpad.net/~epics-core/epics-base/+git/Com/+merge/361379
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