[zeromq-dev] "No throw" alternative version of zmq.hpp

Matt Weinstein matt_weinstein at yahoo.com
Tue Jul 13 15:08:27 CEST 2010


On Jul 13, 2010, at 8:22 AM, Martin Sustrik wrote:

> Hi Matt,
>
>> It looks like I'm going to have to write (branch) a "no throw"  
>> version
>> of the C++ wrappers for our blended (C/C++) environment.
>>
>> I hate maintaining alternative forks, but IMO it's better to expect a
>> return value consistently, and the "value of destruction" is too  
>> great.
>>
>> I presume I'll get rights to submit it.  Will anyone else find it
>> useful?
>
> Why not use raw C API then? The C++ API does basically nothing aside  
> of
> converting POSIX error codes into C++ exceptions.

Primarily to prevent the introduction of leaks, forgotten closes,  
etc.  I'm handing zmq::message_t s into naive userland.

I was thinking about writing a private wrapper, but figure a  
contribution would be useful.

>
>> Any preference on returning bool vs. int for status? Why?
>
> Because EAGAIN as returned by zmq_send and zmq_recv is not a real  
> error
> that should be turned into exception, rather it is success status  
> saying
> "everything is OK, but the action cannot be accomplished immediately,
> try again later".
>
That's fair, I'll return a positive error number, or 0 for success?



> Martin
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Best,

Matt



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