src/bindings/python/bt2/bt2/native_bt_trace.i

   1 /*
   2  * The MIT License (MIT)
   3  *
   4  * Copyright (c) 2016 Philippe Proulx <pproulx@efficios.com>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 %include <babeltrace2/trace-ir/trace-const.h>
  26 %include <babeltrace2/trace-ir/trace.h>
  27
  28 %{
  29 static void
  30 trace_destroyed_listener(const bt_trace *trace, void *py_callable)
  31 {
  32         PyObject *py_trace_ptr = NULL;
  33         PyObject *py_res = NULL;
  34
  35         py_trace_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(trace),
  36                 SWIGTYPE_p_bt_trace, 0);
  37         if (!py_trace_ptr) {
  38                 BT_LOGF_STR("Failed to create a SWIG pointer object.");
  39                 abort();
  40         }
  41
  42         py_res = PyObject_CallFunction(py_callable, "(O)", py_trace_ptr);
  43         if (py_res) {
  44                 BT_ASSERT(py_res == Py_None);
  45         } else {
  46                 loge_exception("Trace's destruction listener (Python)",
  47                         BT_LOG_OUTPUT_LEVEL);
  48         }
  49
  50         Py_DECREF(py_trace_ptr);
  51         Py_XDECREF(py_res);
  52 }
  53
  54 int bt_bt2_trace_add_destruction_listener(bt_trace *trace,
  55                 PyObject *py_callable, bt_listener_id *id)
  56 {
  57         bt_trace_add_listener_status status;
  58
  59         BT_ASSERT(trace);
  60         BT_ASSERT(py_callable);
  61         status = bt_trace_add_destruction_listener(
  62                 trace, trace_destroyed_listener, py_callable, id);
  63         if (status == __BT_FUNC_STATUS_OK) {
  64                 Py_INCREF(py_callable);
  65         }
  66
  67         return status;
  68 }
  69 %}
  70
  71 int bt_bt2_trace_add_destruction_listener(bt_trace *trace,
  72                 PyObject *py_callable, bt_listener_id *id);