Commit | Line | Data |
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0235b0db | 1 | # SPDX-License-Identifier: MIT |
81447b5b PP |
2 | # |
3 | # Copyright (c) 2016-2017 Philippe Proulx <pproulx@efficios.com> | |
81447b5b | 4 | |
5995b304 | 5 | from bt2 import error as bt2_error |
e5914347 | 6 | from bt2 import utils as bt2_utils |
5995b304 | 7 | from bt2 import value as bt2_value |
3fb99a22 PP |
8 | from bt2 import object as bt2_object |
9 | from bt2 import packet as bt2_packet | |
5995b304 | 10 | from bt2 import native_bt |
3fb99a22 | 11 | from bt2 import stream_class as bt2_stream_class |
81447b5b PP |
12 | |
13 | ||
79935628 SM |
14 | def _bt2_trace(): |
15 | from bt2 import trace as bt2_trace | |
16 | ||
17 | return bt2_trace | |
18 | ||
19 | ||
f0a42b33 | 20 | class _StreamConst(bt2_object._SharedObject): |
9dee90bd SM |
21 | @staticmethod |
22 | def _get_ref(ptr): | |
23 | native_bt.stream_get_ref(ptr) | |
24 | ||
25 | @staticmethod | |
26 | def _put_ref(ptr): | |
27 | native_bt.stream_put_ref(ptr) | |
28 | ||
f0a42b33 FD |
29 | _borrow_class_ptr = staticmethod(native_bt.stream_borrow_class_const) |
30 | _borrow_user_attributes_ptr = staticmethod( | |
31 | native_bt.stream_borrow_user_attributes_const | |
32 | ) | |
33 | _create_value_from_ptr_and_get_ref = staticmethod( | |
34 | bt2_value._create_from_const_ptr_and_get_ref | |
35 | ) | |
36 | _borrow_trace_ptr = staticmethod(native_bt.stream_borrow_trace_const) | |
37 | _stream_class_pycls = bt2_stream_class._StreamClassConst | |
79935628 | 38 | _trace_pycls = property(lambda _: _bt2_trace()._TraceConst) |
81447b5b | 39 | |
81447b5b | 40 | @property |
e8ac1aae | 41 | def cls(self): |
f0a42b33 | 42 | stream_class_ptr = self._borrow_class_ptr(self._ptr) |
af4bbfc7 | 43 | assert stream_class_ptr is not None |
f0a42b33 | 44 | return self._stream_class_pycls._create_from_ptr_and_get_ref(stream_class_ptr) |
81447b5b PP |
45 | |
46 | @property | |
47 | def name(self): | |
50842bdc | 48 | return native_bt.stream_get_name(self._ptr) |
81447b5b | 49 | |
5783664e PP |
50 | @property |
51 | def user_attributes(self): | |
f0a42b33 | 52 | ptr = self._borrow_user_attributes_ptr(self._ptr) |
5783664e | 53 | assert ptr is not None |
f0a42b33 | 54 | return self._create_value_from_ptr_and_get_ref(ptr) |
5783664e | 55 | |
811644b8 PP |
56 | @property |
57 | def id(self): | |
50842bdc | 58 | id = native_bt.stream_get_id(self._ptr) |
811644b8 PP |
59 | return id if id >= 0 else None |
60 | ||
f0a42b33 FD |
61 | @property |
62 | def trace(self): | |
63 | trace_ptr = self._borrow_trace_ptr(self._ptr) | |
64 | assert trace_ptr is not None | |
65 | return self._trace_pycls._create_from_ptr_and_get_ref(trace_ptr) | |
66 | ||
67 | ||
68 | class _Stream(_StreamConst): | |
69 | _borrow_class_ptr = staticmethod(native_bt.stream_borrow_class) | |
70 | _borrow_user_attributes_ptr = staticmethod(native_bt.stream_borrow_user_attributes) | |
71 | _create_value_from_ptr_and_get_ref = staticmethod( | |
72 | bt2_value._create_from_ptr_and_get_ref | |
73 | ) | |
74 | _borrow_trace_ptr = staticmethod(native_bt.stream_borrow_trace) | |
75 | _stream_class_pycls = bt2_stream_class._StreamClass | |
79935628 | 76 | _trace_pycls = property(lambda _: _bt2_trace()._Trace) |
f0a42b33 | 77 | |
81447b5b | 78 | def create_packet(self): |
26fc5aed | 79 | if not self.cls.supports_packets: |
ce4923b0 | 80 | raise ValueError( |
f5567ea8 | 81 | "cannot create packet: stream class does not support packets" |
cfbd7cf3 | 82 | ) |
26fc5aed | 83 | |
50842bdc | 84 | packet_ptr = native_bt.packet_create(self._ptr) |
81447b5b PP |
85 | |
86 | if packet_ptr is None: | |
c345b078 | 87 | raise bt2_error._MemoryError("cannot create packet object") |
81447b5b | 88 | |
3fb99a22 | 89 | return bt2_packet._Packet._create_from_ptr(packet_ptr) |
e071d36f | 90 | |
f0a42b33 FD |
91 | def _user_attributes(self, user_attributes): |
92 | value = bt2_value.create_value(user_attributes) | |
e5914347 | 93 | bt2_utils._check_type(value, bt2_value.MapValue) |
f0a42b33 FD |
94 | native_bt.stream_set_user_attributes(self._ptr, value._ptr) |
95 | ||
96 | _user_attributes = property( | |
97 | fget=_StreamConst.user_attributes.fget, fset=_user_attributes | |
98 | ) | |
99 | ||
100 | def _name(self, name): | |
e5914347 | 101 | bt2_utils._check_str(name) |
f0a42b33 FD |
102 | native_bt.stream_set_name(self._ptr, name) |
103 | ||
104 | _name = property(fget=_StreamConst.name.fget, fset=_name) |