Re: System calls - GNAT library vs. direct bindings

[Simon Wright <simon.j.wright@mac.com>]

Maciej Sobczak <see.my.homepage@gmail.com> writes:

> On 31 Maj, 22:07, Simon Wright <simon.j.wri...@mac.com> wrote:
>
>> We decided that GNAT.Sockets was perfectly OK for our needs (that
>> doesn't mean we think it's perfect)
>
> Why is it not perfect?

Because it was created by humans ...

Specifically, the behaviour with UDP streams is bizarre -- it all
looks as though the data is transferred correctly, but each atomic
data item is sent/received in a separate datagram.

The implementation of Socket_Type (and there's a naming issue straight
away!) suffers from not being controlled, and might be better
reference-counted (we've just had to deal with a file descriptor leak
caused by this).

I'm not sure that it was necessary to use 2 (3, temporarily) invisible
sockets in the implementation of Selectors (perhaps it is, haven't
thought about it deeply).