Re: PATCH: Poll tty before selecting on Solaris

[Peter Stephenson <pws@xxxxxxx>]

"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@xxxxxxx>                  Software Engineer
CSR Ltd., Science Park, Milton Road,
Cambridge, CB4 0WH, UK                          Tel: +44 (0)1223 692070


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