bindings/python/bt2/bt2/packet.py

   1 # The MIT License (MIT)
   2 #
   3 # Copyright (c) 2016-2017 Philippe Proulx <pproulx@efficios.com>
   4 #
   5 # Permission is hereby granted, free of charge, to any person obtaining a copy
   6 # of this software and associated documentation files (the "Software"), to deal
   7 # in the Software without restriction, including without limitation the rights
   8 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   9 # copies of the Software, and to permit persons to whom the Software is
  10 # furnished to do so, subject to the following conditions:
  11 #
  12 # The above copyright notice and this permission notice shall be included in
  13 # all copies or substantial portions of the Software.
  14 #
  15 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  18 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  21 # THE SOFTWARE.
  22
  23 from bt2 import native_bt, object
  24 import bt2.field
  25 import bt2
  26
  27
  28 class _Packet(object._SharedObject):
  29     _get_ref = staticmethod(native_bt.packet_get_ref)
  30     _put_ref = staticmethod(native_bt.packet_put_ref)
  31
  32     @property
  33     def stream(self):
  34         stream_ptr = native_bt.packet_borrow_stream(self._ptr)
  35         assert stream_ptr is not None
  36         return bt2.stream._Stream._create_from_ptr_and_get_ref(stream_ptr)
  37
  38     @property
  39     def context_field(self):
  40         field_ptr = native_bt.packet_borrow_context_field(self._ptr)
  41
  42         if field_ptr is None:
  43             return
  44
  45         return bt2.field._create_field_from_ptr(field_ptr, self._ptr,
  46                                                 self._get_ref,
  47                                                 self._put_ref)