Re: Sockets in Apex

[Jim Rogers <jrogers@omnitech.com>]

In article <87s92v$lke$1@nnrp1.deja.com>,
  reason67@my-deja.com wrote:
> I wrote a socket binding to Ada 95. I am creating an executable in
Apex
> 3.2.0b on Solaris 2.6.
>
> When I connect a non-blocking client socket in a task in the threaded
> model, errno does not seem to be set by the underlying C. When I run
in
> the non-threaded model, or I connect the client without any tasks
(just
> the main), or I make the socket block, everything works fine.
>

I believe this is because the non-blocking form of the C socket
library is not thread-safe. Specifically, the errno result is not
available to a thread, but only to a process. This would be
consistent with your results.

If this is the case, there is nothing Ada can fix. The problem is in
the C library call you bind to.

--
Jim Rogers
Colorado Springs, Colorado USA


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