Looks like a word boundary issue. 128+1, 256+1 and 512+1
Some sanity checks (asserts) would help figure it out.
----- Original Message -----
> In working on the stable Ruby APIs on top of Swig I've hit an
> interesting problem with this API.
>
> The stable API for this is Qpid::Proton::get_message_data(msg, size)
> and returns an array that is the size of the string and the string
> itself, respectively. The swig wrapper currently is:
>
> %rename (pn_message_save) wrap_pn_message_save;
> %inline %{
> int wrap_pn_message_save(pn_message_t *msg, char *OUTPUT, size_t
> *OUTPUT_SIZE) {
> ssize_t sz = pn_message_save(msg, OUTPUT, OUTPUT_SIZE);
>
> if (sz < 0) *OUTPUT_SIZE = 0;
> return *OUTPUT_SIZE;
> }
> %}
> %ignore pn_message_save;
>
> One test I've written is to generate random strings of various
> lengths,
> throwing them at the message and then getting them back to verify
> they
> were saved properly. And what I'm seeing happening is that, at
> certain
> lengths (2 specifically), the APIs fail.
>
> Initially, when the length hits either 129 or 257 bytes, the string
> returned does not match the string submitted. If it gets past 129
> then
> it ALWAYS fails at 257 bytes. And if I tell it to ignore anything
> before
> 257 then it always fails at 513.
>
> Not sure on first glance what's causing the problem.
>
> --
> Darryl L. Pierce, Sr. Software Engineer @ Red Hat, Inc.
> Delivering value year after year.
> Red Hat ranks #1 in value among software vendors.
> http://www.redhat.com/promo/vendor/
>
>
