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

   1 /*
   2  * The MIT License (MIT)
   3  *
   4  * Copyright (c) 2017 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 static PyObject *bt_bt2_get_user_component_from_user_msg_iter(
  26                 bt_self_message_iterator *self_message_iterator)
  27 {
  28         bt_self_component *self_component = bt_self_message_iterator_borrow_component(self_message_iterator);
  29         PyObject *py_comp;
  30
  31         BT_ASSERT(self_component);
  32         py_comp = bt_self_component_get_data(self_component);
  33         BT_ASSERT(py_comp);
  34
  35         /* Return new reference */
  36         Py_INCREF(py_comp);
  37         return py_comp;
  38 }
  39
  40 static inline
  41 PyObject *create_pylist_from_messages(bt_message_array_const messages,
  42                 uint64_t message_count)
  43 {
  44         uint64_t i;
  45         PyObject *py_msg_list = PyList_New(message_count);
  46
  47         BT_ASSERT(py_msg_list);
  48
  49         for (i = 0; i < message_count; i++) {
  50                 PyList_SET_ITEM(py_msg_list, i,
  51                                 SWIG_NewPointerObj(SWIG_as_voidptr(messages[i]),
  52                                         SWIGTYPE_p_bt_message, 0));
  53         }
  54
  55         return py_msg_list;
  56 }
  57
  58 static
  59 PyObject *get_msg_range_common(bt_message_iterator_next_status status,
  60                 bt_message_array_const messages, uint64_t message_count)
  61 {
  62         PyObject *py_status;
  63         PyObject *py_return_tuple;
  64         PyObject *py_msg_list;
  65
  66         py_return_tuple = PyTuple_New(2);
  67         BT_ASSERT(py_return_tuple);
  68
  69         /* Set tuple[0], status. */
  70         py_status = SWIG_From_long_SS_long(status);
  71         PyTuple_SET_ITEM(py_return_tuple, 0, py_status);
  72
  73         /* Set tuple[1], message list on success, None otherwise. */
  74         if (status == __BT_FUNC_STATUS_OK) {
  75                 py_msg_list = create_pylist_from_messages(messages, message_count);
  76         } else {
  77                 py_msg_list = Py_None;
  78                 Py_INCREF(py_msg_list);
  79         }
  80
  81         PyTuple_SET_ITEM(py_return_tuple, 1, py_msg_list);
  82
  83         return py_return_tuple;
  84 }
  85
  86 static PyObject *bt_bt2_self_component_port_input_get_msg_range(
  87                 bt_self_component_port_input_message_iterator *iter)
  88 {
  89         bt_message_array_const messages;
  90         uint64_t message_count = 0;
  91         bt_message_iterator_next_status status;
  92
  93         status = bt_self_component_port_input_message_iterator_next(iter,
  94                 &messages, &message_count);
  95         return get_msg_range_common(status, messages, message_count);
  96 }