[pypy-issue] [issue869] Implement ctypes.<type>.from_buffer method

[Michael Schurter]

Michael Schurter <m at schmichael.com> added the comment:

from_buffer is useful for more than just tests. They allow you to create ctypes
in, for example, memory mapped buffers for sharing between processes.

I've been using this feature extensively in a metrics/monitoring library I've
been working on and would love for it to be supported in PyPy (I went with
ctypes instead of C or Cython in hopes of getting "free" PyPy support from the
beginning).

https://github.com/schmichael/mmstats
http://schmichael.github.com/mmstats-talk/

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