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Re: [PATCH] Fix get-bytevector-all read redundant eof
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From: |
Mark H Weaver |
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Subject: |
Re: [PATCH] Fix get-bytevector-all read redundant eof |
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Date: |
Fri, 15 Mar 2013 17:20:47 -0400 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) |
Nala Ginrut <address@hidden> writes:
> On Thu, 2013-03-14 at 17:30 +0800, Nala Ginrut wrote:
>> Attached the patch to fix get-bytevector-all.
>> You may check it like this:
>> (get-bytevector-all (current-input-port))
>>
>> And try to input then type ctrl+d, the current implementation needs you
>> type ctrl+d twice.
>>
>> Regards.
>
>
> Sorry, but I realized that this patch only fixed when you type ctrl+d in
> the beginning. But if you input something, the problem is still there.
> I'll look deeper.
FWIW, I suspect you'll have to dig fairly deep to fix this properly.
AFAIK, the ports code was not designed to ensure that exactly one EOF is
reported to the user for each EOF returned by the kernel. I hope to
look into this soon (possibly before 2.0.8), as part of my investigation
of <http://bugs.gnu.org/12216>.
Thanks,
Mark