[Chicago] Passing structure

[Daniel Griffin]

Actually, that wasn't clear, I meant

struct some_struct * my_struct = (some_struct *)recv(sizeof(some_struct));

If so you need to figure out endian-ness and packing.



On Thu, Feb 25, 2010 at 4:14 PM, Daniel Griffin <dgriff1 at gmail.com> wrote:

> It is a pretty open ended question. Does the C program essentially do:
>
> char * source = (char*)recv(12); // or whatever the size of the struct
>
> or does it use some sort of formatting? If its sending structs then you can
> probably use the python struct module and you might have to worry about
> endian-ness and structure packing.
>
> Dan
>
>
> On Thu, Feb 25, 2010 at 4:06 PM, Ed Marshall <esm at logic.net> wrote:
>
>> On Wed, Feb 24, 2010 at 4:20 AM, Goudar, Girish <
>> Girish.Goudar at goodrich.com> wrote:
>>
>>>  I want to pass a structure (which contains int, float, char etc) from a
>>> client program written in Python to a server program written in C (Operating
>>> system is DEOS). But the “socket.send” command in Python supports only
>>> String or Readonly buffer. I want to pass a structure. Could you please help
>>> me on this?
>>>
>> You might consider serializing your data structure as JSON or YAML and
>> passing it that way:
>>
>> http://docs.python.org/library/json.html
>> http://pyyaml.org/
>>
>> For something a littlle more Python-specific, pickle is also available:
>>
>> http://docs.python.org/library/pickle.html
>>
>> Perhaps that will give you a few ideas? :)
>>
>> --
>> Ed Marshall <esm at logic.net>
>> Felix qui potuit rerum cognoscere causas.
>> http://esm.logic.net/
>>
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>>
>>
>
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