X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bindings%2Fpython%2Fbt2%2Fbt2%2Fobject.py;fp=bindings%2Fpython%2Fbt2%2Fbt2%2Fobject.py;h=774027cbdc6685105b72bb1154d3992eb385fe5d;hb=1b8fb86234d51aff255b8e97435d4dbb3316eaec;hp=0000000000000000000000000000000000000000;hpb=375d5f6a40f8021639019995c8dc8e6f190b7b55;p=babeltrace.git

diff --git a/bindings/python/bt2/bt2/object.py b/bindings/python/bt2/bt2/object.py
new file mode 100644
index 00000000..774027cb
--- /dev/null
+++ b/bindings/python/bt2/bt2/object.py
@@ -0,0 +1,81 @@
+# 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
+import abc
+
+
+class _Object:
+    def __init__(self, ptr):
+        self._ptr = ptr
+
+    @property
+    def addr(self):
+        return int(self._ptr)
+
+    @classmethod
+    def _create_from_ptr(cls, ptr):
+        obj = cls.__new__(cls)
+        obj._ptr = ptr
+        return obj
+
+    def _get(self):
+        native_bt.get(self._ptr)
+
+    def __del__(self):
+        ptr = getattr(self, '_ptr', None)
+        native_bt.put(ptr)
+        self._ptr = None
+
+    def __repr__(self):
+        return '<{}.{} object @ {}>'.format(self.__class__.__module__,
+                                            self.__class__.__name__,
+                                            hex(self.addr))
+
+
+class _PrivateObject:
+    def __del__(self):
+        pub_ptr = getattr(self, '_pub_ptr', None)
+        native_bt.put(pub_ptr)
+        self._pub_ptr = None
+        super().__del__()
+
+
+class _Freezable(metaclass=abc.ABCMeta):
+    @property
+    def is_frozen(self):
+        return self._is_frozen()
+
+    @property
+    def frozen(self):
+        return self.is_frozen
+
+    def freeze(self):
+        self._freeze()
+
+    @abc.abstractmethod
+    def _is_frozen(self):
+        pass
+
+    @abc.abstractmethod
+    def _freeze(self):
+        pass