First Commit

2026-09-07 12:08:27 -03:00
commit 995adb4757
3490 changed files with 685824 additions and 0 deletions
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+# Xlib.support.lock -- allocate a lock
+#
+#    Copyright (C) 2000 Peter Liljenberg <petli@ctrl-c.liu.se>
+#
+#    This program is free software; you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation; either version 2 of the License, or
+#    (at your option) any later version.
+#
+#    This program 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 General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program; if not, write to the Free Software
+#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+class _DummyLock:
+    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