Date: Tue, 03 Jun 2003 15:19:51 -0300 From: "Daniel C. Sobral" <dcs@tcoip.com.br> To: Julian Elischer <julian@elischer.org> Cc: threads@freebsd.org Subject: Re: libc_r, libthr & konsole news Message-ID: <3EDCE6C7.4050209@tcoip.com.br> In-Reply-To: <Pine.BSF.4.21.0306031111440.93263-100000@InterJet.elischer.org> References: <Pine.BSF.4.21.0306031111440.93263-100000@InterJet.elischer.org>
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Julian Elischer wrote:
>
> On Tue, 3 Jun 2003, Daniel C. Sobral wrote:
>
>
>>Alas, I found *what* is going on differently depending on the library used.
>>
>>With libc_r, dup2() gets called and fails, preventing execution of
>>konsole_grantpty, with libthr things work, konsole_grantpty gets called
>>and... ttyname fails. :-)
>>
>>Now, dup2() implementation seems to differ between libc_r and libthr
>>(though I'm open to be shown that is not so -- I don't quite understand
>>how things work here).
>>
>>I have verified that by preventing execution of
>>/usr/local/bin/konsole_grantpty (by the simple artifice of renaming it),
>>the problem DOES NOT HAPPEN.
>>
>>Now... to find out what's different between both dup2() implementations...
>
>
> does it work with kse?
/me sighs
Ok, ok, I'll test it. And I tested it.
Now, libkse had problems freezing konsole at one time. I don't know
about now, but that's another matter anyway.
Both libkse and libthr behave identically with regards to the problem I
described. In both dup2() works, resulting in later failure of
ttyname(), and in both just renaming /usr/local/bin/konsole_grantpty
results in ttyname() working again.
--
Daniel C. Sobral (8-DCS)
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E-mail: Daniel.Capo@tco.net.br
Daniel.Sobral@tcoip.com.br
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Outros:
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