C++ ctors, cdtest.exe, printf and termios oh my!

[erik.ivanenko at utoronto.ca (erik.ivanenko)]

Tony R. Ambardar wrote:

> This is what I originally suspected. However, I believe Rosimildo and Erik
> have both successfully run cdtest.exe using interrupt-driven console I/O.
> Hence my confusion...
>
> Is this true, Erik, Rosimildo?

Nope.  I change the printf's to printk's.

>
>
> I haven't looked closely before, so how does one turn on polling for
> general I/O in the x86 BSP's?
>

see console.c  There is a polling driver instead of an interrupt driven one
that you use to get characters.

> Joel, why don't we just change the printf's in cdtest.exe to printk's and
> not worry about this any more?
>

That's my vote.

> Another place where polling I/O is required is for the various timing
> tests.  Would using printk in these cases be alright?
>
>   ____________________________________________________________
>  /                                                            \
> | Tony R. Ambardar         |   Department of Electrical &      |
> | M.Sc., M.Eng.            |   Computer Engineering            |
> | Email: tonya at ece.ubc.ca  |   University of British Columbia  |
> | Ph: (604) 822-2872       |   2356 Main Mall, Vancouver B.C.  |
> | Fax:(604) 822-5949       |   V6T 1Z4  CANADA                 |
>  \____________________________________________________________/
>
> On Thu, 5 Aug 1999 joel at OARcorp.com wrote:
>
> >
> > You almost answered the question yourself. :)
> >
> > Your console device driver is interrupt driven.  The constructurs are
> > being run long before interrupts are enabled at the system level -- even
> > before tasking is initiated.  If you run the test with polled console
> > output, it will avoid this problem.
> >
> > As has been noted before, most of the RTEMS tests behave best when using
> > polled console IO.
> >
> > Try it again with polled IO
> >
> > --joel


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