1 files changed, 27 insertions, 0 deletions
diff --git a/src/mongo/db/d_globals.h b/src/mongo/db/d_globals.h
new file mode 100644
index 00000000000..7c95d463cc3
--- /dev/null
+++ b/src/mongo/db/d_globals.h
@@ -0,0 +1,27 @@
+// @file d_globals.h
+//
+// these are global variables used in mongod ("d").  also used in test binary as that is effectively a variation on mongod code.
+// that is, these are not in mongos.
+//
+
+#pragma once
+
+namespace mongo { 
+
+    class RWLock;
+    class MongoMutex;
+    class ClientCursorMonitor;
+
+    struct DGlobals : boost::noncopyable { 
+        DGlobals();
+
+        // these are intentionally never deleted:
+        RWLock& writeExcluder;
+        MongoMutex &dbMutex;
+        ClientCursorMonitor& clientCursorMonitor;
+
+    };
+
+    extern DGlobals d;
+
+};