| 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, utils |
| 24 | import bt2.field |
| 25 | import bt2.stream |
| 26 | import copy |
| 27 | import abc |
| 28 | import bt2 |
| 29 | |
| 30 | |
| 31 | class _Packet(object._SharedObject): |
| 32 | @property |
| 33 | def stream(self): |
| 34 | stream_ptr = native_bt.packet_get_stream(self._ptr) |
| 35 | assert(stream_ptr) |
| 36 | return bt2.stream._Stream._create_from_ptr(stream_ptr) |
| 37 | |
| 38 | @property |
| 39 | def header_field(self): |
| 40 | field_ptr = native_bt.packet_get_header(self._ptr) |
| 41 | |
| 42 | if field_ptr is None: |
| 43 | return |
| 44 | |
| 45 | return bt2.field._create_from_ptr(field_ptr) |
| 46 | |
| 47 | @header_field.setter |
| 48 | def header_field(self, header_field): |
| 49 | header_field_ptr = None |
| 50 | |
| 51 | if header_field is not None: |
| 52 | utils._check_type(header_field, bt2.field._Field) |
| 53 | header_field_ptr = header_field._ptr |
| 54 | |
| 55 | ret = native_bt.packet_set_header(self._ptr, header_field_ptr) |
| 56 | utils._handle_ret(ret, "cannot set packet object's header field") |
| 57 | |
| 58 | @property |
| 59 | def context_field(self): |
| 60 | field_ptr = native_bt.packet_get_context(self._ptr) |
| 61 | |
| 62 | if field_ptr is None: |
| 63 | return |
| 64 | |
| 65 | return bt2.field._create_from_ptr(field_ptr) |
| 66 | |
| 67 | @context_field.setter |
| 68 | def context_field(self, context_field): |
| 69 | context_field_ptr = None |
| 70 | |
| 71 | if context_field is not None: |
| 72 | utils._check_type(context_field, bt2.field._Field) |
| 73 | context_field_ptr = context_field._ptr |
| 74 | |
| 75 | ret = native_bt.packet_set_context(self._ptr, context_field_ptr) |
| 76 | utils._handle_ret(ret, "cannot set packet object's context field") |
| 77 | |
| 78 | def __eq__(self, other): |
| 79 | if type(other) is not type(self): |
| 80 | return False |
| 81 | |
| 82 | if self.addr == other.addr: |
| 83 | return True |
| 84 | |
| 85 | self_props = ( |
| 86 | self.header_field, |
| 87 | self.context_field, |
| 88 | ) |
| 89 | other_props = ( |
| 90 | other.header_field, |
| 91 | other.context_field, |
| 92 | ) |
| 93 | return self_props == other_props |
| 94 | |
| 95 | def _copy(self, copy_func): |
| 96 | cpy = self.stream.create_packet() |
| 97 | cpy.header_field = copy_func(self.header_field) |
| 98 | cpy.context_field = copy_func(self.context_field) |
| 99 | return cpy |
| 100 | |
| 101 | def __copy__(self): |
| 102 | return self._copy(copy.copy) |
| 103 | |
| 104 | def __deepcopy__(self, memo): |
| 105 | cpy = self._copy(copy.deepcopy) |
| 106 | memo[id(self)] = cpy |
| 107 | return cpy |