2 * This file is part of the sigrok project.
4 * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
5 * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include "sigrokdecode.h" /* First, so we avoid a _POSIX_C_SOURCE warning. */
22 #include "sigrokdecode-internal.h"
26 * Get the value of a Python object's attribute, returned as a newly
29 * @param py_obj The object to probe.
30 * @param attr Name of the attribute to retrieve.
31 * @param outstr ptr to char * storage to be filled in.
33 * @return SRD_OK upon success, a (negative) error code otherwise.
34 * The 'outstr' argument points to a malloc()ed string upon success.
36 SRD_PRIV int py_attr_as_str(PyObject *py_obj, const char *attr, char **outstr)
41 if (!PyObject_HasAttrString(py_obj, attr)) {
42 srd_dbg("%s object has no attribute '%s'.",
43 Py_TYPE(py_obj)->tp_name, attr);
44 return SRD_ERR_PYTHON;
47 if (!(py_str = PyObject_GetAttrString(py_obj, attr))) {
49 return SRD_ERR_PYTHON;
52 if (!PyUnicode_Check(py_str)) {
53 srd_dbg("%s attribute should be a string, but is a %s.",
54 attr, Py_TYPE(py_str)->tp_name);
56 return SRD_ERR_PYTHON;
59 ret = py_str_as_str(py_str, outstr);
66 * Get the value of a Python dictionary item, returned as a newly
69 * @param py_obj The dictionary to probe.
70 * @param attr Key of the item to retrieve.
71 * @param outstr ptr to char * storage to be filled in.
73 * @return SRD_OK upon success, a (negative) error code otherwise.
74 * The 'outstr' argument points to a malloc()ed string upon success.
76 SRD_PRIV int py_dictitem_as_str(PyObject *py_obj, const char *key,
82 if (!PyDict_Check(py_obj)) {
83 srd_dbg("Object is a %s, not a dictionary.",
84 Py_TYPE(py_obj)->tp_name);
85 return SRD_ERR_PYTHON;
88 if (!(py_value = PyDict_GetItemString(py_obj, key))) {
89 srd_dbg("Dictionary has no attribute '%s'.", key);
90 return SRD_ERR_PYTHON;
93 if (!PyUnicode_Check(py_value)) {
94 srd_dbg("Dictionary value for %s should be a string, but is "
95 "a %s.", key, Py_TYPE(py_value)->tp_name);
96 return SRD_ERR_PYTHON;
99 ret = py_str_as_str(py_value, outstr);
105 * Get the value of a Python unicode string object, returned as a newly
108 * @param py_str The unicode string object.
109 * @param outstr ptr to char * storage to be filled in.
111 * @return SRD_OK upon success, a (negative) error code otherwise.
112 * The 'outstr' argument points to a malloc()ed string upon success.
114 SRD_PRIV int py_str_as_str(PyObject *py_str, char **outstr)
124 if (!PyUnicode_Check(py_str)) {
125 srd_dbg("Object is a %s, not a string object.",
126 Py_TYPE(py_str)->tp_name);
127 ret = SRD_ERR_PYTHON;
131 if (!(py_encstr = PyUnicode_AsEncodedString(py_str, "utf-8", NULL))) {
132 ret = SRD_ERR_PYTHON;
135 if (!(str = PyBytes_AS_STRING(py_encstr))) {
136 ret = SRD_ERR_PYTHON;
140 if (!(*outstr = g_strdup(str))) {
141 srd_dbg("Failed to g_malloc() outstr.");
142 ret = SRD_ERR_MALLOC;
148 Py_XDECREF(py_encstr);
150 if (PyErr_Occurred()) {
151 catch_exception("string conversion failed");
158 * Convert a Python list of unicode strings to a NULL-terminated UTF8-encoded
159 * char * array. The caller must g_free() each string when finished.
161 * @param py_strlist The list object.
162 * @param outstr ptr to char ** storage to be filled in.
164 * @return SRD_OK upon success, a (negative) error code otherwise.
165 * The 'outstr' argument points to a g_malloc()ed char** upon success.
167 SRD_PRIV int py_strlist_to_char(PyObject *py_strlist, char ***outstr)
173 list_len = PyList_Size(py_strlist);
174 if (!(out = g_try_malloc(sizeof(char *) * (list_len + 1)))) {
175 srd_err("Failed to g_malloc() 'out'.");
176 return SRD_ERR_MALLOC;
178 for (i = 0; i < list_len; i++) {
179 if (!(py_str = PyUnicode_AsEncodedString(
180 PyList_GetItem(py_strlist, i), "utf-8", NULL)))
181 return SRD_ERR_PYTHON;
182 if (!(str = PyBytes_AS_STRING(py_str)))
183 return SRD_ERR_PYTHON;
184 out[i] = g_strdup(str);