[erlang-questions] gen_tcp nonblocking send

[Igor Ribeiro Sucupira]

On Fri, May 2, 2008 at 7:53 AM, Per Hedeland <per@REDACTED> wrote:
> "Igor Ribeiro Sucupira" <igorrs@REDACTED> wrote:
>  >
>
> >But, how do you deal with the situation (definitely not Daniel's case)
>  >in which you just want to NOT send the message if the buffer is full
>  >("Oh... system overload... nevermind... I don't want to make the
>  >situation worst... I'll come back when I have something
>  >important...")?  :-)
>
>  Well, definitely not by using O_NDELAY/O_NONBLOCK, since they do not (in
>  general) provide that functionality - they will let you send however
>  much that fits in the send buffer and leave you to deal with the rest.


I meant the "0 byte sent" case.
I have this bad habit of being too brief sometimes.  :-)

Igor.

>  In fact I don't think there is a portable way to do what you're asking
>  about - i.e. basically check whether there is enough buffer space
>  without attempting to send anything.
>
>  I do think *this* functionality could be useful in Daniel's case though
>  - he'd probably prefer to queue and possibly eliminate also the message
>  that hit the "buffer full" condition.
>
>  --Per