| From: | mark(at)mark(dot)mielke(dot)cc |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Magnus Hagander <mha(at)sollentuna(dot)net>, Martijn van Oosterhout <kleptog(at)svana(dot)org>, Qingqing Zhou <zhouqq(at)cs(dot)toronto(dot)edu>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Stats collection on Windows |
| Date: | 2006-04-05 16:46:18 |
| Message-ID: | 20060405164618.GA13831@mark.mielke.cc |
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| Lists: | pgsql-hackers |
On Wed, Apr 05, 2006 at 10:05:56AM -0400, Tom Lane wrote:
> What happens if process Y goes away between the time you obtain a
> handle for it and the time you try to run this DuplicateHandle call?
Think of Windows HANDLE like UNIX fd, but Windows HANDLE works for
everything - not just sockets, files, pipes, and character devices.
Process Y doesn't go away until all references to it, via HANDLE, have
been closed. It may not be running. It may have an exit status available.
It doesn't go away, though, until you are done with it, and everybody
who has a reference to it does CloseHandle().
Cheers,
mark
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