tap-driver.sh: flush stdout after each test result
[babeltrace.git] / bindings / python / bt2 / bt2 / port.py
1 # The MIT License (MIT)
2 #
3 # Copyright (c) 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
24 import bt2.component
25 import bt2.connection
26 import bt2.message_iterator
27 import bt2.message
28 import bt2
29
30
31 def _create_from_ptr_and_get_ref(ptr, port_type):
32 cls = _PORT_TYPE_TO_PYCLS.get(port_type, None)
33
34 if cls is None:
35 raise bt2.Error('unknown port type: {}'.format(port_type))
36
37 return cls._create_from_ptr_and_get_ref(ptr)
38
39
40 def _create_self_from_ptr_and_get_ref(ptr, port_type):
41 cls = _PORT_TYPE_TO_USER_PYCLS.get(port_type, None)
42
43 if cls is None:
44 raise bt2.Error('unknown port type: {}'.format(port_type))
45
46 return cls._create_from_ptr_and_get_ref(ptr)
47
48
49 class _Port(object._SharedObject):
50 @classmethod
51 def _get_ref(cls, ptr):
52 ptr = cls._as_port_ptr(ptr)
53 return native_bt.port_get_ref(ptr)
54
55 @classmethod
56 def _put_ref(cls, ptr):
57 ptr = cls._as_port_ptr(ptr)
58 return native_bt.port_put_ref(ptr)
59
60 @property
61 def name(self):
62 ptr = self._as_port_ptr(self._ptr)
63 name = native_bt.port_get_name(ptr)
64 assert name is not None
65 return name
66
67 @property
68 def connection(self):
69 ptr = self._as_port_ptr(self._ptr)
70 conn_ptr = native_bt.port_borrow_connection_const(ptr)
71
72 if conn_ptr is None:
73 return
74
75 return bt2.connection._Connection._create_from_ptr_and_get_ref(conn_ptr)
76
77 @property
78 def is_connected(self):
79 return self.connection is not None
80
81
82 class _InputPort(_Port):
83 _as_port_ptr = staticmethod(native_bt.port_input_as_port_const)
84
85
86 class _OutputPort(_Port):
87 _as_port_ptr = staticmethod(native_bt.port_output_as_port_const)
88
89
90 class _UserComponentPort(_Port):
91 @classmethod
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)
95
96 @property
97 def connection(self):
98 ptr = self._as_port_ptr(self._ptr)
99 conn_ptr = native_bt.port_borrow_connection_const(ptr)
100
101 if conn_ptr is None:
102 return
103
104 return bt2.connection._Connection._create_from_ptr_and_get_ref(conn_ptr)
105
106 @property
107 def user_data(self):
108 ptr = self._as_self_port_ptr(self._ptr)
109 return native_bt.self_component_port_get_data(ptr)
110
111
112 class _UserComponentInputPort(_UserComponentPort, _InputPort):
113 _as_self_port_ptr = staticmethod(native_bt.self_component_port_input_as_self_component_port)
114
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')
119
120 return bt2.message_iterator._UserComponentInputPortMessageIterator(msg_iter_ptr)
121
122
123 class _UserComponentOutputPort(_UserComponentPort, _OutputPort):
124 _as_self_port_ptr = staticmethod(native_bt.self_component_port_output_as_self_component_port)
125
126
127 _PORT_TYPE_TO_PYCLS = {
128 native_bt.PORT_TYPE_INPUT: _InputPort,
129 native_bt.PORT_TYPE_OUTPUT: _OutputPort,
130 }
131
132
133 _PORT_TYPE_TO_USER_PYCLS = {
134 native_bt.PORT_TYPE_INPUT: _UserComponentInputPort,
135 native_bt.PORT_TYPE_OUTPUT: _UserComponentOutputPort,
136 }
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