From: Peter Stephenson <pws@csr.com>
To: zsh-workers@sunsite.dk (Zsh hackers list)
Subject: Re: PATCH: Poll tty before selecting on Solaris
Date: Tue, 25 Feb 2003 13:50:26 +0000 [thread overview]
Message-ID: <26393.1046181026@csr.com> (raw)
In-Reply-To: ""Bart Schaefer""'s message of "Sat, 22 Feb 2003 23:50:16 GMT." <1030222235017.ZM10749@candle.brasslantern.com>
"Bart Schaefer" wrote:
> On Feb 14, 6:57pm, Peter Stephenson wrote:
> } This extravaganza is necessary on Solaris when you use select() with the
> } terminal and there is already typeahead --- it doesn't see it, you need
> } to use a read with the termios poll mechanism.
>
> It's been quite a while since I worked with Solaris, but I suspect this
> has to do with the STREAMS-based tty driver.
I had a vague feeling it would involve something like `pushing the
ttdwim module atop the STREAMS stack', or something.
The docs on the Sun website imply all the configuration is done by
standard termios; I haven't found anything which has the appropriate
effect. I tried making the tcsetattr() use TCSANOW instead of
TCSADRAIN, but that didn't seem to help.
I think this is going to have to stay, but I'd be interested to know if
other systems show this behaviour.
--
Peter Stephenson <pws@csr.com> Software Engineer
CSR Ltd., Science Park, Milton Road,
Cambridge, CB4 0WH, UK Tel: +44 (0)1223 692070
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prev parent reply other threads:[~2003-02-25 13:50 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-14 18:57 Peter Stephenson
2003-02-22 23:50 ` Bart Schaefer
2003-02-25 13:50 ` Peter Stephenson [this message]
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