instance.c: Fix a memory leak reported by scan-build.

[libsigrokdecode.git] / srd.c

diff --git a/srd.c b/srd.c
index efd1c8ef4275f82840035e2171a5b5ff5710f1ed..bed803198c99bb339db52c5da93d9b399ef989b9 100644 (file)
--- a/srd.c
+++ b/srd.c
@@ -144,6 +144,55 @@ static void print_versions(void)
        g_free(str);
 }
 
+static int print_searchpaths(void)
+{
+       PyObject *py_paths, *py_path, *py_bytes;
+       PyGILState_STATE gstate;
+       GString *s;
+       GSList *l;
+       int i;
+
+       s = g_string_sized_new(500);
+       g_string_append(s, "Protocol decoder search paths:\n");
+       for (l = searchpaths; l; l = l->next)
+               g_string_append_printf(s, " - %s\n", (const char *)l->data);
+       s->str[s->len - 1] = '\0';
+       srd_dbg("%s", s->str);
+       g_string_free(s, TRUE);
+
+       gstate = PyGILState_Ensure();
+
+       py_paths = PySys_GetObject("path");
+       if (!py_paths)
+               goto err;
+
+       s = g_string_sized_new(500);
+       g_string_append(s, "Python system search paths:\n");
+       for (i = 0; i < PyList_Size(py_paths); i++) {
+               py_path = PyList_GetItem(py_paths, i);
+               py_bytes = PyUnicode_AsUTF8String(py_path);
+               g_string_append_printf(s, " - %s\n", PyBytes_AsString(py_bytes));
+       }
+       s->str[s->len - 1] = '\0';
+       srd_dbg("%s", s->str);
+       g_string_free(s, TRUE);
+
+       PyGILState_Release(gstate);
+
+       return SRD_OK;
+
+err:
+       srd_err("Unable to query Python system search paths.");
+       PyGILState_Release(gstate);
+
+       return SRD_ERR_PYTHON;
+}
+
+SRD_API GSList *srd_searchpaths_get(void)
+{
+       return g_slist_copy_deep(searchpaths, (GCopyFunc)g_strdup, NULL);
+}
+
 /**
  * Initialize libsigrokdecode.
  *
@@ -240,6 +289,8 @@ SRD_API int srd_init(const char *path)
 
        max_session_id = 0;
 
+       print_searchpaths();
+
        return SRD_OK;
 }
 
@@ -271,7 +322,8 @@ SRD_API int srd_exit(void)
         * Acquire the GIL, otherwise Py_Finalize() might have issues.
         * Ignore the return value, we don't need it here.
         */
-       (void)PyGILState_Ensure();
+       if (Py_IsInitialized())
+               (void)PyGILState_Ensure();
 
        /* Py_Finalize() returns void, any finalization errors are ignored. */
        Py_Finalize();