1 files changed, 31 insertions, 0 deletions
diff --git a/src/mongo/util/concurrency/remap_lock.h b/src/mongo/util/concurrency/remap_lock.h
new file mode 100644
index 00000000000..c45d0d3dafb
--- /dev/null
+++ b/src/mongo/util/concurrency/remap_lock.h
@@ -0,0 +1,31 @@
+// remap_lock.h
+
+/*
+ *    Copyright 2012 10gen Inc.
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+// Used to synchronize thread creation in initAndListen() in mongod with
+// MemoryMappedFile::remapPrivateView() in Windows.  A dummy in mongos.
+// The functional constructor & destructor for mongod are in mmap_win.cpp.
+// The no-op constructor & destructor for mongos are in server.cpp.
+
+namespace mongo {
+
+    struct RemapLock {
+        RemapLock();
+        ~RemapLock();
+    };
+
+}