1 files changed, 61 insertions, 0 deletions
diff --git a/src/mongo/util/concurrency/msg.h b/src/mongo/util/concurrency/msg.h
new file mode 100644
index 00000000000..0b9a7c5048c
--- /dev/null
+++ b/src/mongo/util/concurrency/msg.h
@@ -0,0 +1,61 @@
+// @file msg.h - interthread message passing
+
+/**
+*    Copyright (C) 2008 10gen Inc.
+*
+*    This program is free software: you can redistribute it and/or  modify
+*    it under the terms of the GNU Affero General Public License, version 3,
+*    as published by the Free Software Foundation.
+*
+*    This program is distributed in the hope that it will be useful,b
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU Affero General Public License for more details.
+*
+*    You should have received a copy of the GNU Affero General Public License
+*    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include <deque>
+#include "task.h"
+
+namespace mongo {
+
+    namespace task {
+
+        typedef boost::function<void()> lam;
+
+        /** typical usage is: task::fork( new Server("threadname") ); */
+        class Server : public Task {
+        public:
+            /** send a message to the port */
+            void send(lam);
+
+            Server(string name) : m("server"), _name(name), rq(false) { }
+            virtual ~Server() { }
+
+            /** send message but block until function completes */
+            void call(const lam&);
+
+            void requeue() { rq = true; }
+
+        protected:
+            /* REMINDER : for use in mongod, you will want to have this call Client::initThread(). */
+            virtual void starting() { }
+
+        private:
+            virtual bool initClient() { return true; }
+            virtual string name() const { return _name; }
+            void doWork();
+            deque<lam> d;
+            mongo::mutex m;
+            boost::condition c;
+            string _name;
+            bool rq;
+        };
+
+    }
+
+}