Add Babeltrace 2 Python bindings

[babeltrace.git] / bindings / python / bt2 / native_btplugin.i

diff --git a/bindings/python/bt2/native_btplugin.i b/bindings/python/bt2/native_btplugin.i
new file mode 100644 (file)
index 0000000..9b1bb56
--- /dev/null
+++ b/bindings/python/bt2/native_btplugin.i
@@ -0,0 +1,135 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+%{
+#include <babeltrace/plugin/plugin.h>
+#include <assert.h>
+%}
+
+/* Types */
+struct bt_plugin;
+
+/* Status */
+enum bt_plugin_status {
+       BT_PLUGIN_STATUS_OK =           0,
+       BT_PLUGIN_STATUS_ERROR =        -1,
+       BT_PLUGIN_STATUS_NOMEM =        -4,
+};
+
+/* Functions */
+const char *bt_plugin_get_name(struct bt_plugin *plugin);
+const char *bt_plugin_get_author(struct bt_plugin *plugin);
+const char *bt_plugin_get_license(struct bt_plugin *plugin);
+const char *bt_plugin_get_description(struct bt_plugin *plugin);
+const char *bt_plugin_get_path(struct bt_plugin *plugin);
+enum bt_plugin_status bt_plugin_get_version(struct bt_plugin *plugin,
+               unsigned int *OUTPUT, unsigned int *OUTPUT, unsigned int *OUTPUT,
+               const char **BTOUTSTR);
+int bt_plugin_get_component_class_count(struct bt_plugin *plugin);
+struct bt_component_class *bt_plugin_get_component_class(
+               struct bt_plugin *plugin, size_t index);
+struct bt_component_class *bt_plugin_get_component_class_by_name_and_type(
+               struct bt_plugin *plugin, const char *name,
+               enum bt_component_class_type type);
+
+%{
+static PyObject *bt_py3_plugin_ptrs_list_from_bt_plugins(struct bt_plugin **plugins)
+{
+       PyObject *py_plugin_ptrs = NULL;
+       struct bt_plugin **plugin_at;
+
+       if (!plugins) {
+               goto error;
+       }
+
+       py_plugin_ptrs = PyList_New(0);
+       if (!py_plugin_ptrs) {
+               goto error;
+       }
+
+       plugin_at = plugins;
+
+       while (*plugin_at) {
+               struct bt_plugin *plugin = *plugin_at;
+               PyObject *py_plugin_ptr;
+               int ret;
+
+               py_plugin_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(plugin),
+                       SWIGTYPE_p_bt_plugin, 0);
+               if (!py_plugin_ptr) {
+                       goto error;
+               }
+
+               ret = PyList_Append(py_plugin_ptrs, py_plugin_ptr);
+               Py_DECREF(py_plugin_ptr);
+               if (ret < 0) {
+                       goto error;
+               }
+
+               plugin_at++;
+       }
+
+       goto end;
+
+error:
+       Py_XDECREF(py_plugin_ptrs);
+       py_plugin_ptrs = Py_None;
+       Py_INCREF(py_plugin_ptrs);
+
+       if (plugins) {
+               /*
+                * Put existing plugin references since they are not
+                * moved to the caller.
+                */
+               plugin_at = plugins;
+
+               while (*plugin_at) {
+                       bt_put(*plugin_at);
+                       plugin_at++;
+               }
+       }
+
+end:
+       PyErr_Clear();
+       free(plugins);
+       return py_plugin_ptrs;
+}
+
+static PyObject *bt_py3_plugin_create_all_from_file(const char *path)
+{
+       return bt_py3_plugin_ptrs_list_from_bt_plugins(
+               bt_plugin_create_all_from_file(path));
+}
+
+static PyObject *bt_py3_plugin_create_all_from_dir(const char *path,
+               bool recurse)
+{
+       return bt_py3_plugin_ptrs_list_from_bt_plugins(
+               bt_plugin_create_all_from_dir(path, recurse));
+}
+%}
+
+PyObject *bt_py3_plugin_create_all_from_file(const char *path);
+PyObject *bt_py3_plugin_create_all_from_dir(const char *path,
+               bool recurse);