Re: GdaNumeric problems

[Tomeu Vizoso <tomeu tomeuvizoso net>]

On Thu, Sep 8, 2011 at 14:33, Murray Cumming <murrayc murrayc com> wrote:
> When using the Python gi.repository.Gda API, I'm seeing some nonsense
> strings in the Gda's Numeric.number field. This valgrind warning shows
> that something is wrong at that point. I suspect that the whole
> GdaNumeric has already been freed. I got the Numeric from a call to
> datamodel.get_value_at().
>
> Does anyone have any idea what might be wrong?

datamodel.get_value_at() appears in the .gir as returning (transfer:
full) when it should be (trasnfer: none) instead?

Otherwise, it could be the field stuff not being stable enough, though
we do have some test coverage about fields.

Regards,

Tomeu

>
> ==26064== Invalid read of size 4
> ==26064==    at 0x51CAC5B: g_field_info_get_field (gifieldinfo.c:196)
> ==26064==    by 0x51A5B55: _wrap_g_field_info_get_value
> (pygi-info.c:1226)
> ==26064==    by 0x80A2957: ??? (in /usr/bin/python2.7)
> ==26064==    by 0x80A4701: PyObject_CallFunction (in /usr/bin/python2.7)
> ==26064==    by 0x80BEF3E: ??? (in /usr/bin/python2.7)
> ==26064==    by 0x80DA6A7: PyEval_EvalFrameEx (in /usr/bin/python2.7)
> ==26064==    by 0x80DAE8A: PyEval_EvalFrameEx (in /usr/bin/python2.7)
> ==26064==    by 0x80E11E6: PyEval_EvalCodeEx (in /usr/bin/python2.7)
> ==26064==    by 0x812C476: PyEval_EvalCode (in /usr/bin/python2.7)
> ==26064==    by 0x813C00F: ??? (in /usr/bin/python2.7)
> ==26064==    by 0x80700B2: PyRun_FileExFlags (in /usr/bin/python2.7)
> ==26064==    by 0x8070AF8: PyRun_SimpleFileExFlags
> (in /usr/bin/python2.7)
> ==26064==    by 0x805C068: Py_Main (in /usr/bin/python2.7)
> ==26064==    by 0x805B25A: main (in /usr/bin/python2.7)
>
> ==26064==  Address 0x4674b80 is 0 bytes inside a block of size 16 free'd
> ==26064==    at 0x4025BF0: free (vg_replace_malloc.c:366)
> ==26064==    by 0x540F806: g_free (gmem.c:263)
> ==26064==    by 0x7DEE6A4: gda_numeric_free (gda-value.c:830)
> ==26064==    by 0x53A5D07: _g_type_boxed_free (gtype.c:4233)
> ==26064==    by 0x538046C: boxed_proxy_value_free (gboxed.c:193)
> ==26064==    by 0x53A8405: g_value_unset (gvalue.c:275)
> ==26064==    by 0x7DEF995: gda_value_reset_with_type (gda-value.c:1454)
> ==26064==    by 0x7DF02EE: gda_value_set_null (gda-value.c:1688)
> ==26064==    by 0x7DC367C: gda_row_finalize (gda-row.c:119)
> ==26064==    by 0x538BADA: g_object_unref (gobject.c:2746)
> ==26064==    by 0x7D9FCCB: free_private_shared_data
> (gda-data-select.c:440)
> ==26064==    by 0x7D9FEA3: gda_data_select_dispose
> (gda-data-select.c:485)
> ==26064==    by 0x7FCEE3E: gda_postgres_recordset_dispose
> (gda-postgres-recordset.c:186)
> ==26064==    by 0x538B9D9: g_object_unref (gobject.c:2709)
> ==26064==    by 0x59023EF: pygobject_clear (pygobject.c:1080)
> ==26064==    by 0x5902086: pygobject_dealloc (pygobject.c:990)
> ==26064==    by 0x80CEF1E: ??? (in /usr/bin/python2.7)
> ==26064==    by 0x81048B0: ??? (in /usr/bin/python2.7)
> ==26064==    by 0x80DAEA7: PyEval_EvalFrameEx (in /usr/bin/python2.7)
> ==26064==    by 0x80DAE8A: PyEval_EvalFrameEx (in /usr/bin/python2.7)
> ==26064==    by 0x80DAE8A: PyEval_EvalFrameEx (in /usr/bin/python2.7)
> ==26064==    by 0x80DAE8A: PyEval_EvalFrameEx (in /usr/bin/python2.7)
> ==26064==    by 0x80DAE8A: PyEval_EvalFrameEx (in /usr/bin/python2.7)
> ==26064==    by 0x80E11E6: PyEval_EvalCodeEx (in /usr/bin/python2.7)
> ==26064==    by 0x812C476: PyEval_EvalCode (in /usr/bin/python2.7)
> ==26064==    by 0x813C00F: ??? (in /usr/bin/python2.7)
> ==26064==    by 0x80700B2: PyRun_FileExFlags (in /usr/bin/python2.7)
> ==26064==    by 0x8070AF8: PyRun_SimpleFileExFlags
> (in /usr/bin/python2.7)
> ==26064==    by 0x805C068: Py_Main (in /usr/bin/python2.7)
> ==26064==    by 0x805B25A: main (in /usr/bin/python2.7)
>
>
> --
> murrayc murrayc com
> www.murrayc.com
> www.openismus.com
>
>
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