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Re: Possible race in pserver leading to broken pipe error?

From: Derek Robert Price
Subject: Re: Possible race in pserver leading to broken pipe error?
Date: Tue, 10 Feb 2004 19:46:01 -0500
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Steve McIntyre wrote:

>On Tue, Feb 10, 2004 at 07:23:43PM -0500, Derek Robert Price wrote:
>>Larry Jones wrote:
>>>Derek Robert Price writes:
>>>>Yep, it just needed fflushes.  Working patch attached.  Comments before
>>>>I commit?
>>>fflush()/close() is a no-no -- you want fclose() instead.  Once you've
>>>attached a stream to a file descriptor, you have to be very careful
>>>about what you do to the file descriptor -- it's best to only use the
>>>stream from then on.
>>Why, if you don't mind me asking?  I couldn't find a man page for a file
>>descriptor flush - is there some way I could have flushed the pipe
>>without attaching the stream?
>fsync() or fdatasync() should do what you want here. Although you
>_should_ be able to mix stream and fd operations normally - stdio is
>meant to do the right thing AFAIK. But now I can't find the reference
>I had that said so, of course.

I tired fsync() and sync() originally and they didn't work.  I just
tried fdatasync() and it doesn't work either.  Keep in mind that these
are pipes and not files.


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