Update Python bindings and tests to match the latest API

[babeltrace.git] / bindings / python / bt2 / connection.py

diff --git a/bindings/python/bt2/connection.py b/bindings/python/bt2/connection.py
new file mode 100644 (file)
index 0000000..09092af
--- /dev/null
+++ b/bindings/python/bt2/connection.py
@@ -0,0 +1,110 @@
+# 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, utils
+import bt2.notification_iterator
+import collections.abc
+import bt2.port
+import copy
+import bt2
+
+
+def _handle_status(status, gen_error_msg):
+    if status == native_bt.CONNECTION_STATUS_GRAPH_IS_CANCELED:
+        raise bt2.GraphCanceled
+    elif status == native_bt.CONNECTION_STATUS_IS_ENDED:
+        raise bt2.ConnectionEnded
+    elif status < 0:
+        raise bt2.Error(gen_error_msg)
+
+
+def _create_private_from_ptr(ptr):
+    obj = _PrivateConnection._create_from_ptr(ptr)
+    obj._pub_ptr = native_bt.connection_from_private_connection(ptr)
+    assert(obj._pub_ptr)
+    return obj
+
+
+class _Connection(object._Object):
+    @staticmethod
+    def _downstream_port(ptr):
+        port_ptr = native_bt.connection_get_downstream_port(ptr)
+        utils._handle_ptr(port_ptr, "cannot get connection object's downstream port object")
+        return bt2.port._create_from_ptr(port_ptr)
+
+    @staticmethod
+    def _upstream_port(ptr):
+        port_ptr = native_bt.connection_get_upstream_port(ptr)
+        utils._handle_ptr(port_ptr, "cannot get connection object's upstream port object")
+        return bt2.port._create_from_ptr(port_ptr)
+
+    @property
+    def downstream_port(self):
+        return self._downstream_port(self._ptr)
+
+    @property
+    def upstream_port(self):
+        return self._upstream_port(self._ptr)
+
+    @staticmethod
+    def _is_ended(ptr):
+        return native_bt.connection_is_ended(ptr) == 1
+
+    @property
+    def is_ended(self):
+        return self._is_ended(self._ptr)
+
+    def __eq__(self, other):
+        if type(other) not in (_Connection, _PrivateConnection):
+            return False
+
+        return self.addr == other.addr
+
+
+class _PrivateConnection(object._PrivateObject, _Connection):
+    def create_notification_iterator(self, notification_types=None):
+        if notification_types is None:
+            notif_types = None
+        else:
+            for notif_cls in notification_types:
+                if notif_cls not in bt2.notification._NOTIF_TYPE_TO_CLS.values():
+                    raise ValueError("'{}' is not a notification class".format(notif_cls))
+
+            notif_types = [notif_cls._TYPE for notif_cls in notification_types]
+
+        status, notif_iter_ptr = native_bt.py3_create_notif_iter(int(self._ptr),
+                                                                notif_types)
+        _handle_status(status, 'cannot create notification iterator object')
+        assert(notif_iter_ptr)
+        return bt2.notification_iterator._GenericNotificationIterator._create_from_ptr(notif_iter_ptr)
+
+    @property
+    def is_ended(self):
+        return self._is_ended(self._pub_ptr)
+
+    @property
+    def downstream_port(self):
+        return self._downstream_port(self._pub_ptr)
+
+    @property
+    def upstream_port(self):
+        return self._upstream_port(self._pub_ptr)