Re: [rpyc] rpyc ctypes support

[Tomer Filiba]

i'm not sure how ctypes works, but it makes sense that it performs strict type checks so it detects netfefs and complains accordingly.

if this is the case, you'll have to execute the code remotely.

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Tomer Filiba  tomerfiliba.com

On Wed, Apr 10, 2013 at 12:23 PM, ostealth <oost...@gmail.com> wrote:

Hi

Having some problems with RPyC and ctypes

Local machine python 2.7.3 RPyC 3.2.3

Remote  machine python 2.7.4 RPyC 3.2.3

from ctypes import *

import rpyc

conn = rpyc.classic.connect(remoteHost)

niWlan = conn.modules.ctypes.WinDLL(wlanDll)

sessionName = c_char_p('WLANG')

compatibilityVersion = c_int(30000)

newSession = c_int(0)

niWlan.niWLANG_OpenSession(sessionName,

                             compatibilityVersion,

                             byref(wlanSession),

                             byref(newSession))

Gives

Traceback (most recent call last):

  File "wlanRx.py", line 477, in <module>

    main()

  File "wlanRx.py", line 469, in main

    configureToolkitSession(niWlan)

  File "alexandros\wlanRx.py", line 259, in configureToolkitSession

    byref(newSession))

  File "C:\Python27\lib\site-packages\rpyc\core\netref.py", line 196, in __call__

    return syncreq(_self, consts.HANDLE_CALL, args, kwargs)

  File "C:\Python27\lib\site-packages\rpyc\core\netref.py", line 71, in syncreq

    return conn.sync_request(handler, oid, *args)

  File "C:\Python27\lib\site-packages\rpyc\core\protocol.py", line 438, in sync_request

    raise obj

ctypes.ArgumentError: argument 1: <type 'exceptions.TypeError'>: Don't know how to convert parameter 1

========= Remote Traceback (1) =========

Traceback (most recent call last):

  File "C:\Python27\lib\site-packages\rpyc\core\protocol.py", line 300, in _dispatch_request

    res = self._HANDLERS[handler](self, *args)

  File "C:\Python27\lib\site-packages\rpyc\core\protocol.py", line 532, in _handle_call

    return self._local_objects[oid](*args, **dict(kwargs))

ArgumentError: argument 1: <type 'exceptions.TypeError'>: Don't know how to convert parameter 1

Executing the same thing inside

conn.execute(sampleTxt)

with rpyc.classic.redirected_stdio(conn):

  conn.namespace['sample']()

It works nicely

Does RPyC have support for c_char_p, c_int, byref, pointer and the whole ctypes stuff?

Thanks

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