Re: Win32 open items

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От Tom Lane
Тема Re: Win32 open items
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Msg-id 12353.1099166332@sss.pgh.pa.us
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Ответ на Re: Win32 open items  ("Magnus Hagander" <mha@sollentuna.net>)
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"Magnus Hagander" <mha@sollentuna.net> writes:
>> We don't need the cancelConnLock if this is done properly (at least,
>> assuming that storing a pointer is atomic, which seems reasonable).

> Anyway, consider this scenario. Thread A is the mainloop thread, Thread
> B is the thread that handles Ctrl-C. What if Thread B starts its run and
> starts reading off the pointer. Before it's done, it's pre-empted, and
> Thread A starts executing. Thread A does a free() on the memory pointed
> to by the pointer. When control goes back to Thread B, it will definitly
> die.

Good point.  Never mind that claim then ...

            regards, tom lane

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