first commit

myenv/lib/python3.10/site-packages/Xlib/support/lock.py

@@ -0,0 +1,44 @@
+# Xlib.support.lock -- allocate a lock
+#
+#    Copyright (C) 2000 Peter Liljenberg <petli@ctrl-c.liu.se>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public License
+# as published by the Free Software Foundation; either version 2.1
+# of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the
+#    Free Software Foundation, Inc.,
+#    59 Temple Place,
+#    Suite 330,
+#    Boston, MA 02111-1307 USA
+
+class _DummyLock(object):
+    def __init__(self):
+
+        # This might be nerdy, but by assigning methods like this
+        # instead of defining them all, we create a single bound
+        # method object once instead of one each time one of the
+        # methods is called.
+
+        # This gives some speed improvements which should reduce the
+        # impact of the threading infrastructure in the regular code,
+        # when not using threading.
+
+        self.acquire = self.release = self.locked = self.__noop
+
+    def __noop(self, *args):
+        return
+
+
+# More optimisations: we use a single lock for all lock instances
+_dummy_lock = _DummyLock()
+
+def allocate_lock():
+    return _dummy_lock