1 # The MIT License (MIT)
3 # Copyright (c) 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
, object
26 import bt2
.message_iterator
31 def _create_from_ptr_and_get_ref(ptr
, port_type
):
32 cls
= _PORT_TYPE_TO_PYCLS
.get(port_type
, None)
35 raise bt2
.Error('unknown port type: {}'.format(port_type
))
37 return cls
._create
_from
_ptr
_and
_get
_ref
(ptr
)
40 def _create_self_from_ptr_and_get_ref(ptr
, port_type
):
41 cls
= _PORT_TYPE_TO_USER_PYCLS
.get(port_type
, None)
44 raise bt2
.Error('unknown port type: {}'.format(port_type
))
46 return cls
._create
_from
_ptr
_and
_get
_ref
(ptr
)
49 class _Port(object._SharedObject
):
51 def _get_ref(cls
, ptr
):
52 ptr
= cls
._as
_port
_ptr
(ptr
)
53 return native_bt
.port_get_ref(ptr
)
56 def _put_ref(cls
, ptr
):
57 ptr
= cls
._as
_port
_ptr
(ptr
)
58 return native_bt
.port_put_ref(ptr
)
62 ptr
= self
._as
_port
_ptr
(self
._ptr
)
63 name
= native_bt
.port_get_name(ptr
)
64 assert name
is not None
69 ptr
= self
._as
_port
_ptr
(self
._ptr
)
70 conn_ptr
= native_bt
.port_borrow_connection_const(ptr
)
75 return bt2
.connection
._Connection
._create
_from
_ptr
_and
_get
_ref
(conn_ptr
)
78 def is_connected(self
):
79 return self
.connection
is not None
82 class _InputPort(_Port
):
83 _as_port_ptr
= staticmethod(native_bt
.port_input_as_port_const
)
86 class _OutputPort(_Port
):
87 _as_port_ptr
= staticmethod(native_bt
.port_output_as_port_const
)
90 class _UserComponentPort(_Port
):
92 def _as_port_ptr(cls
, ptr
):
93 ptr
= cls
._as
_self
_port
_ptr
(ptr
)
94 return native_bt
.self_component_port_as_port(ptr
)
98 ptr
= self
._as
_port
_ptr
(self
._ptr
)
99 conn_ptr
= native_bt
.port_borrow_connection_const(ptr
)
104 return bt2
.connection
._Connection
._create
_from
_ptr
_and
_get
_ref
(conn_ptr
)
108 ptr
= self
._as
_self
_port
_ptr
(self
._ptr
)
109 return native_bt
.self_component_port_get_data(ptr
)
112 class _UserComponentInputPort(_UserComponentPort
, _InputPort
):
113 _as_self_port_ptr
= staticmethod(native_bt
.self_component_port_input_as_self_component_port
)
115 def create_message_iterator(self
):
116 msg_iter_ptr
= native_bt
.self_component_port_input_message_iterator_create(self
._ptr
)
117 if msg_iter_ptr
is None:
118 raise bt2
.CreationError('cannot create message iterator object')
120 return bt2
.message_iterator
._UserComponentInputPortMessageIterator
(msg_iter_ptr
)
123 class _UserComponentOutputPort(_UserComponentPort
, _OutputPort
):
124 _as_self_port_ptr
= staticmethod(native_bt
.self_component_port_output_as_self_component_port
)
127 _PORT_TYPE_TO_PYCLS
= {
128 native_bt
.PORT_TYPE_INPUT
: _InputPort
,
129 native_bt
.PORT_TYPE_OUTPUT
: _OutputPort
,
133 _PORT_TYPE_TO_USER_PYCLS
= {
134 native_bt
.PORT_TYPE_INPUT
: _UserComponentInputPort
,
135 native_bt
.PORT_TYPE_OUTPUT
: _UserComponentOutputPort
,