[GAP] Asynchroneus IO on Mac OS X

[Christfried Webers]

Arno,

I saw the "Get_Immediate being blocking on Mac OS X" has been raised before 
by Alan Barnes. It is EC09-019 (Enhancement Suggestion). I would strongly 
argue to implement this as nonblocking, although the ARM does
not demand it but says only (A.10.7.23) Get_Immediate SHOULD
be implemented with unbuffered input.

I just try to imagine some student new to Ada. Having heard all these
nice things about tasking, concurrency etc. Then she writes a program which 
is controlled by the keyboard - the simplest control one can get.
And then the frustration: The Ada program does not react to single
keystrokes.

So please, get this fixed.

I will submit a ticket for the SIGIO problem (unless Ted can tell me what I 
am doing wrong ;-)

Best
Chris

--On 8 September 2006 11:01:47 +0200 Arnaud Charlet <charlet at adacore.com> 
wrote:

>> While porting an Ada program running on Solaris and Linux to Mac OS X,
>> I ran into the problem that I could not catch SIGIO signals via an
>> installed signal handler (protected procedure). Before joining the GAP,
>> I  filed a report to ACT ([F411-002 public], see below), but as a public
>> member I had no way of figuring out what happened with it.
>
> What you should to is resubmit a ticket using gnattracker and your GAP
> account, this way you will interact with AdaCore engineers and will
> be able to look at the archives/discussions on this ticket.
>
> Be sure to submit a self contained ticket rather thasn a simple follow up
> to a discussion from this list, since the two are separate and there's
> no easy way to link the two.
>
> Note that F411-002 contained actually two separate issues: one about
> SIGIO, one about get_immediate being blocking.
>
> I'd suggest opening two separate tickets, since the two issues are very
> different.
>
> Arno