libsigrok/bindings/python/sigrok/core/lowlevel.i

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/*
2013-04-23 20:24:30 +00:00
* This file is part of the libsigrok project.
*
* Copyright (C) 2013 Martin Ling <martin-sigrok@earth.li>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
%module lowlevel
%include "../../../swig/libsigrok.i"
%{
void sr_datafeed_python_callback(const struct sr_dev_inst *sdi,
const struct sr_datafeed_packet *packet, void *cb_data)
{
PyObject *sdi_obj;
PyObject *packet_obj;
PyObject *arglist;
PyObject *result;
PyGILState_STATE gstate;
PyObject *python_callback;
python_callback = (PyObject *) cb_data;
gstate = PyGILState_Ensure();
sdi_obj = SWIG_NewPointerObj(SWIG_as_voidptr(sdi),
SWIGTYPE_p_sr_dev_inst, 0);
packet_obj = SWIG_NewPointerObj(SWIG_as_voidptr(packet),
SWIGTYPE_p_sr_datafeed_packet, 0);
arglist = Py_BuildValue("(OO)", sdi_obj, packet_obj);
result = PyEval_CallObject(python_callback, arglist);
Py_XDECREF(arglist);
Py_XDECREF(sdi_obj);
Py_XDECREF(packet_obj);
Py_XDECREF(result);
PyGILState_Release(gstate);
}
int sr_session_datafeed_python_callback_add(PyObject *cb)
{
int ret;
if (!PyCallable_Check(cb))
return SR_ERR_ARG;
else {
ret = sr_session_datafeed_callback_add(
sr_datafeed_python_callback, cb);
if (ret == SR_OK)
Py_XINCREF(cb);
return ret;
}
}
PyObject *cdata(const void *data, unsigned long size)
{
#if PY_MAJOR_VERSION < 3
return PyString_FromStringAndSize(data, size);
#else
return PyBytes_FromStringAndSize(data, size);
#endif
}
GSList *python_to_gslist(PyObject *pylist)
{
if (PyList_Check(pylist)) {
GSList *gslist = NULL;
int size = PyList_Size(pylist);
int i;
for (i = size - 1; i >= 0; i--) {
SwigPyObject *o = (SwigPyObject *)PyList_GetItem(pylist, i);
void *data = o->ptr;
gslist = g_slist_prepend(gslist, data);
}
return gslist;
}
return NULL;
}
PyObject *gslist_to_python(GSList *gslist)
{
PyObject *pylist = PyList_New(0);
GSList *l;
for (l = gslist; l; l = l->next)
PyList_Append(pylist, SWIG_NewPointerObj(l->data, SWIGTYPE_p_void, 0));
return pylist;
}
%}
int sr_session_datafeed_python_callback_add(PyObject *cb);
PyObject *cdata(const void *data, unsigned long size);
GSList *python_to_gslist(PyObject *pylist);
PyObject *gslist_to_python(GSList *gslist);