src/bindings/python/bt2/bt2/native_bt_trace_class.i.h

   1 /*
   2  * SPDX-License-Identifier: MIT
   3  *
   4  * Copyright (c) 2016 Philippe Proulx <pproulx@efficios.com>
   5  */
   6
   7 static void
   8 trace_class_destroyed_listener(const bt_trace_class *trace_class, void *py_callable)
   9 {
  10         PyObject *py_trace_class_ptr = NULL;
  11         PyObject *py_res = NULL;
  12
  13         py_trace_class_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(trace_class),
  14                 SWIGTYPE_p_bt_trace_class, 0);
  15         if (!py_trace_class_ptr) {
  16                 BT_LOGF_STR("Failed to create a SWIG pointer object.");
  17                 bt_common_abort();
  18         }
  19
  20         py_res = PyObject_CallFunction(py_callable, "(O)", py_trace_class_ptr);
  21         if (!py_res) {
  22                 logw_exception_clear(BT_LOG_OUTPUT_LEVEL);
  23                 goto end;
  24         }
  25
  26         BT_ASSERT(py_res == Py_None);
  27
  28 end:
  29         Py_DECREF(py_trace_class_ptr);
  30         Py_XDECREF(py_res);
  31 }
  32
  33 static
  34 int bt_bt2_trace_class_add_destruction_listener(
  35                 bt_trace_class *trace_class, PyObject *py_callable,
  36                 bt_listener_id *id)
  37 {
  38         bt_trace_class_add_listener_status status;
  39
  40         BT_ASSERT(trace_class);
  41         BT_ASSERT(py_callable);
  42
  43         status = bt_trace_class_add_destruction_listener(
  44                 trace_class, trace_class_destroyed_listener, py_callable, id);
  45         if (status == __BT_FUNC_STATUS_OK) {
  46                 Py_INCREF(py_callable);
  47         }
  48
  49         return status;
  50 }