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 #ifndef BABELTRACE_BINDINGS_PYTHON_BT2_BT2_NATIVE_BT_TRACE_CLASS_I_H
   8 #define BABELTRACE_BINDINGS_PYTHON_BT2_BT2_NATIVE_BT_TRACE_CLASS_I_H
   9
  10 static void
  11 trace_class_destroyed_listener(const bt_trace_class *trace_class, void *py_callable)
  12 {
  13         PyObject *py_trace_class_ptr = NULL;
  14         PyObject *py_res = NULL;
  15
  16         py_trace_class_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(trace_class),
  17                 SWIGTYPE_p_bt_trace_class, 0);
  18         if (!py_trace_class_ptr) {
  19                 BT_LOGF_STR("Failed to create a SWIG pointer object.");
  20                 bt_common_abort();
  21         }
  22
  23         py_res = PyObject_CallFunction(py_callable, "(O)", py_trace_class_ptr);
  24         if (!py_res) {
  25                 logw_exception_clear(BT_LOG_OUTPUT_LEVEL);
  26                 goto end;
  27         }
  28
  29         BT_ASSERT(py_res == Py_None);
  30
  31 end:
  32         Py_DECREF(py_trace_class_ptr);
  33         Py_XDECREF(py_res);
  34 }
  35
  36 static
  37 int bt_bt2_trace_class_add_destruction_listener(
  38                 bt_trace_class *trace_class, PyObject *py_callable,
  39                 bt_listener_id *id)
  40 {
  41         bt_trace_class_add_listener_status status;
  42
  43         BT_ASSERT(trace_class);
  44         BT_ASSERT(py_callable);
  45
  46         status = bt_trace_class_add_destruction_listener(
  47                 trace_class, trace_class_destroyed_listener, py_callable, id);
  48         if (status == __BT_FUNC_STATUS_OK) {
  49                 Py_INCREF(py_callable);
  50         }
  51
  52         return status;
  53 }
  54
  55 #endif /* BABELTRACE_BINDINGS_PYTHON_BT2_BT2_NATIVE_BT_TRACE_CLASS_I_H */