Function py_dict_value_to_str

libsigrokdecode4DSL/util.c:293–327

* Get the value of a Python dictionary item, returned as a newly * allocated char *. * * @param py_obj The dictionary to probe. * @param py_key Key of the item to retrieve. * @param outstr Pointer to char * storage to be filled in. * * @return SRD_OK upon success, a (negative) error code otherwise. * The 'outstr' argument points to a malloc()ed string upon success. * * @private

 * @private
 */
SRD_PRIV int py_dict_value_to_str(PyObject *py_obj, PyObject *py_key,
				char **outstr)
{
	PyObject *py_value;
	PyGILState_STATE gstate;

	if (!py_obj || !py_key || !outstr)
		return SRD_ERR_ARG;

	gstate = PyGILState_Ensure();

	if (!PyDict_Check(py_obj)) {
		srd_dbg("Object is not a dictionary.");
		goto err;
	}

	if (!(py_value = PyDict_GetItem(py_obj, py_key))) {
		srd_dbg("Dictionary has no such key.");
		goto err;
	}

	if (!PyUnicode_Check(py_value)) {
		srd_dbg("Dictionary value should be a string.");
		goto err;
	}

	PyGILState_Release(gstate);

	return py_str_as_str(py_value, outstr);

err:
	PyGILState_Release(gstate);

	return SRD_ERR_PYTHON;
}

/**
 * Get the value of a Python dictionary item, returned as a newly