[pypy-dev] serialize and deserialize objects in Pypy

[Yicong Huang]

Hi Maciej,

Could you provide some details on how to use cffi buffers? (a simple demo
code or documents)
I tried the below code but it did not work.

#python list
x=[1,2,3,4]
#intend to convert to c++ char*, but failed
p=ffi.from_buffer(x)
#intend to covert back to python list, but failed
y=ffi.buffer(p)

Thanks!

-Ethan

On Fri, Aug 7, 2015 at 6:24 PM, Maciej Fijalkowski <fijall at gmail.com> wrote:

> you can use cffi buffers (e.g. cffi char*) that you manipulate from
> python using wrappers. They would behave (sort of) like python objects
> and the wrapper code is really not a performance penalty in most cases
>
> On Fri, Aug 7, 2015 at 12:19 PM, Yicong Huang <hengha.mao at gmail.com>
> wrote:
> > Hi,
> >
> > Are there any good methods to serialize Pypy object to C++ char* and
> > deserialize to Pypy object from  C++ char*?
> >
> > Our scenario like this:
> > We have at least two C++ process running, and each process embeded Pypy
> to
> > execute some functions.
> > And we woule like to reuse Pypy object from one process to another
> process.
> > For primitive objects, int/char/bool/double etc., we could use cffi to
> pass
> > objects.
> > Pypy object -> c++ process 1 -> c++ process 2 -> Pypy object
> >
> > But for complex objects, e.g. list/array/dict/tuple, are there any
> methods?
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > pypy-dev mailing list
> > pypy-dev at python.org
> > https://mail.python.org/mailman/listinfo/pypy-dev
> >
>
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