1 # The MIT License (MIT)
3 # Copyright (c) 2016-2017 Philippe Proulx <pproulx@efficios.com>
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:
12 # The above copyright notice and this permission notice shall be included in
13 # all copies or substantial portions of the Software.
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
23 from bt2
import native_bt
, utils
24 from bt2
import object as bt2_object
25 from bt2
import packet
as bt2_packet
26 from bt2
import stream_class
as bt2_stream_class
27 from bt2
import value
as bt2_value
32 from bt2
import trace
as bt2_trace
37 class _StreamConst(bt2_object
._SharedObject
):
38 _get_ref
= staticmethod(native_bt
.stream_get_ref
)
39 _put_ref
= staticmethod(native_bt
.stream_put_ref
)
40 _borrow_class_ptr
= staticmethod(native_bt
.stream_borrow_class_const
)
41 _borrow_user_attributes_ptr
= staticmethod(
42 native_bt
.stream_borrow_user_attributes_const
44 _create_value_from_ptr_and_get_ref
= staticmethod(
45 bt2_value
._create
_from
_const
_ptr
_and
_get
_ref
47 _borrow_trace_ptr
= staticmethod(native_bt
.stream_borrow_trace_const
)
48 _stream_class_pycls
= bt2_stream_class
._StreamClassConst
49 _trace_pycls
= property(lambda _
: _bt2_trace()._TraceConst
)
53 stream_class_ptr
= self
._borrow
_class
_ptr
(self
._ptr
)
54 assert stream_class_ptr
is not None
55 return self
._stream
_class
_pycls
._create
_from
_ptr
_and
_get
_ref
(stream_class_ptr
)
59 return native_bt
.stream_get_name(self
._ptr
)
62 def user_attributes(self
):
63 ptr
= self
._borrow
_user
_attributes
_ptr
(self
._ptr
)
64 assert ptr
is not None
65 return self
._create
_value
_from
_ptr
_and
_get
_ref
(ptr
)
69 id = native_bt
.stream_get_id(self
._ptr
)
70 return id if id >= 0 else None
74 trace_ptr
= self
._borrow
_trace
_ptr
(self
._ptr
)
75 assert trace_ptr
is not None
76 return self
._trace
_pycls
._create
_from
_ptr
_and
_get
_ref
(trace_ptr
)
79 class _Stream(_StreamConst
):
80 _borrow_class_ptr
= staticmethod(native_bt
.stream_borrow_class
)
81 _borrow_user_attributes_ptr
= staticmethod(native_bt
.stream_borrow_user_attributes
)
82 _create_value_from_ptr_and_get_ref
= staticmethod(
83 bt2_value
._create
_from
_ptr
_and
_get
_ref
85 _borrow_trace_ptr
= staticmethod(native_bt
.stream_borrow_trace
)
86 _stream_class_pycls
= bt2_stream_class
._StreamClass
87 _trace_pycls
= property(lambda _
: _bt2_trace()._Trace
)
89 def create_packet(self
):
90 if not self
.cls
.supports_packets
:
92 'cannot create packet: stream class does not support packets'
95 packet_ptr
= native_bt
.packet_create(self
._ptr
)
97 if packet_ptr
is None:
98 raise bt2
._MemoryError('cannot create packet object')
100 return bt2_packet
._Packet
._create
_from
_ptr
(packet_ptr
)
102 def _user_attributes(self
, user_attributes
):
103 value
= bt2_value
.create_value(user_attributes
)
104 utils
._check
_type
(value
, bt2_value
.MapValue
)
105 native_bt
.stream_set_user_attributes(self
._ptr
, value
._ptr
)
107 _user_attributes
= property(
108 fget
=_StreamConst
.user_attributes
.fget
, fset
=_user_attributes
111 def _name(self
, name
):
112 utils
._check
_str
(name
)
113 native_bt
.stream_set_name(self
._ptr
, name
)
115 _name
= property(fget
=_StreamConst
.name
.fget
, fset
=_name
)