| 1 | # SPDX-License-Identifier: MIT |
| 2 | # |
| 3 | # Copyright (c) 2016-2017 Philippe Proulx <pproulx@efficios.com> |
| 4 | |
| 5 | from bt2 import native_bt, object, utils |
| 6 | from bt2 import event_class as bt2_event_class |
| 7 | from bt2 import packet as bt2_packet |
| 8 | from bt2 import stream as bt2_stream |
| 9 | from bt2 import field as bt2_field |
| 10 | import collections.abc |
| 11 | |
| 12 | |
| 13 | class _EventConst(object._UniqueObject, collections.abc.Mapping): |
| 14 | _borrow_class_ptr = staticmethod(native_bt.event_borrow_class_const) |
| 15 | _borrow_packet_ptr = staticmethod(native_bt.event_borrow_packet_const) |
| 16 | _borrow_stream_ptr = staticmethod(native_bt.event_borrow_stream_const) |
| 17 | _borrow_common_context_field_ptr = staticmethod( |
| 18 | native_bt.event_borrow_common_context_field_const |
| 19 | ) |
| 20 | _borrow_specific_context_field_ptr = staticmethod( |
| 21 | native_bt.event_borrow_specific_context_field_const |
| 22 | ) |
| 23 | _borrow_payload_field_ptr = staticmethod(native_bt.event_borrow_payload_field_const) |
| 24 | _create_field_from_ptr = staticmethod(bt2_field._create_field_from_const_ptr) |
| 25 | |
| 26 | _event_class_pycls = property(lambda _: bt2_event_class._EventClassConst) |
| 27 | _packet_pycls = property(lambda _: bt2_packet._PacketConst) |
| 28 | _stream_pycls = property(lambda _: bt2_stream._StreamConst) |
| 29 | |
| 30 | @property |
| 31 | def cls(self): |
| 32 | event_class_ptr = self._borrow_class_ptr(self._ptr) |
| 33 | assert event_class_ptr is not None |
| 34 | return self._event_class_pycls._create_from_ptr_and_get_ref(event_class_ptr) |
| 35 | |
| 36 | @property |
| 37 | def name(self): |
| 38 | return self.cls.name |
| 39 | |
| 40 | @property |
| 41 | def id(self): |
| 42 | return self.cls.id |
| 43 | |
| 44 | @property |
| 45 | def packet(self): |
| 46 | packet_ptr = self._borrow_packet_ptr(self._ptr) |
| 47 | |
| 48 | if packet_ptr is None: |
| 49 | return |
| 50 | |
| 51 | return self._packet_pycls._create_from_ptr_and_get_ref(packet_ptr) |
| 52 | |
| 53 | @property |
| 54 | def stream(self): |
| 55 | stream_ptr = self._borrow_stream_ptr(self._ptr) |
| 56 | assert stream_ptr is not None |
| 57 | return self._stream_pycls._create_from_ptr_and_get_ref(stream_ptr) |
| 58 | |
| 59 | @property |
| 60 | def common_context_field(self): |
| 61 | field_ptr = self._borrow_common_context_field_ptr(self._ptr) |
| 62 | |
| 63 | if field_ptr is None: |
| 64 | return |
| 65 | |
| 66 | return self._create_field_from_ptr( |
| 67 | field_ptr, self._owner_ptr, self._owner_get_ref, self._owner_put_ref |
| 68 | ) |
| 69 | |
| 70 | @property |
| 71 | def specific_context_field(self): |
| 72 | field_ptr = self._borrow_specific_context_field_ptr(self._ptr) |
| 73 | |
| 74 | if field_ptr is None: |
| 75 | return |
| 76 | |
| 77 | return self._create_field_from_ptr( |
| 78 | field_ptr, self._owner_ptr, self._owner_get_ref, self._owner_put_ref |
| 79 | ) |
| 80 | |
| 81 | @property |
| 82 | def payload_field(self): |
| 83 | field_ptr = self._borrow_payload_field_ptr(self._ptr) |
| 84 | |
| 85 | if field_ptr is None: |
| 86 | return |
| 87 | |
| 88 | return self._create_field_from_ptr( |
| 89 | field_ptr, self._owner_ptr, self._owner_get_ref, self._owner_put_ref |
| 90 | ) |
| 91 | |
| 92 | def __getitem__(self, key): |
| 93 | utils._check_str(key) |
| 94 | payload_field = self.payload_field |
| 95 | |
| 96 | if payload_field is not None and key in payload_field: |
| 97 | return payload_field[key] |
| 98 | |
| 99 | specific_context_field = self.specific_context_field |
| 100 | |
| 101 | if specific_context_field is not None and key in specific_context_field: |
| 102 | return specific_context_field[key] |
| 103 | |
| 104 | common_context_field = self.common_context_field |
| 105 | |
| 106 | if common_context_field is not None and key in common_context_field: |
| 107 | return common_context_field[key] |
| 108 | |
| 109 | if self.packet: |
| 110 | packet_context_field = self.packet.context_field |
| 111 | |
| 112 | if packet_context_field is not None and key in packet_context_field: |
| 113 | return packet_context_field[key] |
| 114 | |
| 115 | raise KeyError(key) |
| 116 | |
| 117 | def __iter__(self): |
| 118 | # To only yield unique keys, keep a set of member names that are |
| 119 | # already yielded. Two root structure fields (for example, |
| 120 | # payload and common context) can contain immediate members |
| 121 | # which share the same name. |
| 122 | member_names = set() |
| 123 | |
| 124 | if self.payload_field is not None: |
| 125 | for field_name in self.payload_field: |
| 126 | yield field_name |
| 127 | member_names.add(field_name) |
| 128 | |
| 129 | if self.specific_context_field is not None: |
| 130 | for field_name in self.specific_context_field: |
| 131 | if field_name not in member_names: |
| 132 | yield field_name |
| 133 | member_names.add(field_name) |
| 134 | |
| 135 | if self.common_context_field is not None: |
| 136 | for field_name in self.common_context_field: |
| 137 | if field_name not in member_names: |
| 138 | yield field_name |
| 139 | member_names.add(field_name) |
| 140 | |
| 141 | if self.packet and self.packet.context_field is not None: |
| 142 | for field_name in self.packet.context_field: |
| 143 | if field_name not in member_names: |
| 144 | yield field_name |
| 145 | member_names.add(field_name) |
| 146 | |
| 147 | def __len__(self): |
| 148 | return sum(1 for _ in self) |
| 149 | |
| 150 | |
| 151 | class _Event(_EventConst): |
| 152 | _borrow_class_ptr = staticmethod(native_bt.event_borrow_class) |
| 153 | _borrow_packet_ptr = staticmethod(native_bt.event_borrow_packet) |
| 154 | _borrow_stream_ptr = staticmethod(native_bt.event_borrow_stream) |
| 155 | _borrow_common_context_field_ptr = staticmethod( |
| 156 | native_bt.event_borrow_common_context_field |
| 157 | ) |
| 158 | _borrow_specific_context_field_ptr = staticmethod( |
| 159 | native_bt.event_borrow_specific_context_field |
| 160 | ) |
| 161 | _borrow_payload_field_ptr = staticmethod(native_bt.event_borrow_payload_field) |
| 162 | _create_field_from_ptr = staticmethod(bt2_field._create_field_from_ptr) |
| 163 | |
| 164 | _event_class_pycls = property(lambda _: bt2_event_class._EventClass) |
| 165 | _packet_pycls = property(lambda _: bt2_packet._Packet) |
| 166 | _stream_pycls = property(lambda _: bt2_stream._Stream) |