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+/*
+ *
+ * Copyright (c) 2006 The Apache Software Foundation
+ *
+ * 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.
+ *
+ */
+#ifndef _LockedQueue_
+#define _LockedQueue_
+
+#include <queue>
+#include "Monitor.h"
+
+/**
+ * A threadsafe queue abstraction
+ */
+namespace qpid {
+namespace concurrent {
+ template<class T, class L> class LockedQueue
+ {
+ L lock;
+ std::queue<T*> queue;
+
+ public:
+ void put(T* item);
+ T* take();
+ bool empty();
+ };
+
+ template<class T, class L> void LockedQueue<T, L>::put(T* item){
+ lock.acquire();
+ queue.push(item);
+ lock.release();
+ }
+
+ template<class T, class L> T* LockedQueue<T, L>::take(){
+ lock.acquire();
+ T* item = 0;
+ if(!queue.empty()){
+ item = queue.front();
+ queue.pop();
+ }
+ lock.release();
+ return item;
+ }
+
+ template<class T, class L> bool LockedQueue<T, L>::empty(){
+ lock.acquire();
+ bool result = queue.empty();
+ lock.release();
+ return result;
+ }
+
+}
+}
+
+
+#endif