1 files changed, 36 insertions, 0 deletions
diff --git a/src/mongo/db/nonce.h b/src/mongo/db/nonce.h
new file mode 100644
index 00000000000..d6a147ab1c0
--- /dev/null
+++ b/src/mongo/db/nonce.h
@@ -0,0 +1,36 @@
+// @file nonce.h
+
+/*    Copyright 2009 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.
+ */
+
+#pragma once
+
+namespace mongo {
+
+    typedef unsigned long long nonce64;
+
+    struct Security {
+        Security();
+        static nonce64 getNonce();
+        static nonce64 getNonceDuringInit(); // use this version during global var constructors
+    private:
+        nonce64 _getNonce();
+        nonce64 __getNonce();
+        ifstream *_devrandom;
+        bool _initialized;
+        void init(); // can call more than once
+    };
+
+} // namespace mongo