Re-organize sources

[babeltrace.git] / src / bindings / python / bt2 / bt2 / port.py

diff --git a/src/bindings/python/bt2/bt2/port.py b/src/bindings/python/bt2/bt2/port.py
new file mode 100644 (file)
index 0000000..f7c2366
--- /dev/null
+++ b/src/bindings/python/bt2/bt2/port.py
@@ -0,0 +1,136 @@
+# The MIT License (MIT)
+#
+# Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+from bt2 import native_bt, object
+import bt2.component
+import bt2.connection
+import bt2.message_iterator
+import bt2.message
+import bt2
+
+
+def _create_from_ptr_and_get_ref(ptr, port_type):
+    cls = _PORT_TYPE_TO_PYCLS.get(port_type, None)
+
+    if cls is None:
+        raise bt2.Error('unknown port type: {}'.format(port_type))
+
+    return cls._create_from_ptr_and_get_ref(ptr)
+
+
+def _create_self_from_ptr_and_get_ref(ptr, port_type):
+    cls = _PORT_TYPE_TO_USER_PYCLS.get(port_type, None)
+
+    if cls is None:
+        raise bt2.Error('unknown port type: {}'.format(port_type))
+
+    return cls._create_from_ptr_and_get_ref(ptr)
+
+
+class _Port(object._SharedObject):
+    @classmethod
+    def _get_ref(cls, ptr):
+        ptr = cls._as_port_ptr(ptr)
+        return native_bt.port_get_ref(ptr)
+
+    @classmethod
+    def _put_ref(cls, ptr):
+        ptr = cls._as_port_ptr(ptr)
+        return native_bt.port_put_ref(ptr)
+
+    @property
+    def name(self):
+        ptr = self._as_port_ptr(self._ptr)
+        name = native_bt.port_get_name(ptr)
+        assert name is not None
+        return name
+
+    @property
+    def connection(self):
+        ptr = self._as_port_ptr(self._ptr)
+        conn_ptr = native_bt.port_borrow_connection_const(ptr)
+
+        if conn_ptr is None:
+            return
+
+        return bt2.connection._Connection._create_from_ptr_and_get_ref(conn_ptr)
+
+    @property
+    def is_connected(self):
+        return self.connection is not None
+
+
+class _InputPort(_Port):
+    _as_port_ptr = staticmethod(native_bt.port_input_as_port_const)
+
+
+class _OutputPort(_Port):
+    _as_port_ptr = staticmethod(native_bt.port_output_as_port_const)
+
+
+class _UserComponentPort(_Port):
+    @classmethod
+    def _as_port_ptr(cls, ptr):
+        ptr = cls._as_self_port_ptr(ptr)
+        return native_bt.self_component_port_as_port(ptr)
+
+    @property
+    def connection(self):
+        ptr = self._as_port_ptr(self._ptr)
+        conn_ptr = native_bt.port_borrow_connection_const(ptr)
+
+        if conn_ptr is None:
+            return
+
+        return bt2.connection._Connection._create_from_ptr_and_get_ref(conn_ptr)
+
+    @property
+    def user_data(self):
+        ptr = self._as_self_port_ptr(self._ptr)
+        return native_bt.self_component_port_get_data(ptr)
+
+
+class _UserComponentInputPort(_UserComponentPort, _InputPort):
+    _as_self_port_ptr = staticmethod(native_bt.self_component_port_input_as_self_component_port)
+
+    def create_message_iterator(self):
+        msg_iter_ptr = native_bt.self_component_port_input_message_iterator_create(self._ptr)
+        if msg_iter_ptr is None:
+            raise bt2.CreationError('cannot create message iterator object')
+
+        return bt2.message_iterator._UserComponentInputPortMessageIterator(msg_iter_ptr)
+
+
+class _UserComponentOutputPort(_UserComponentPort, _OutputPort):
+    _as_self_port_ptr = staticmethod(native_bt.self_component_port_output_as_self_component_port)
+
+
+_PORT_TYPE_TO_PYCLS = {
+    native_bt.PORT_TYPE_INPUT: _InputPort,
+    native_bt.PORT_TYPE_OUTPUT: _OutputPort,
+}
+
+
+_PORT_TYPE_TO_USER_PYCLS = {
+    native_bt.PORT_TYPE_INPUT: _UserComponentInputPort,
+    native_bt.PORT_TYPE_OUTPUT: _UserComponentOutputPort,
+}