Thrift now a TLP - INFRA-3116
git-svn-id: https://svn.apache.org/repos/asf/thrift/branches/0.1.x@1028168 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/cpp/src/concurrency/Monitor.h b/lib/cpp/src/concurrency/Monitor.h
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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 _THRIFT_CONCURRENCY_MONITOR_H_
+#define _THRIFT_CONCURRENCY_MONITOR_H_ 1
+
+#include "Exception.h"
+
+namespace apache { namespace thrift { namespace concurrency {
+
+/**
+ * A monitor is a combination mutex and condition-event. Waiting and
+ * notifying condition events requires that the caller own the mutex. Mutex
+ * lock and unlock operations can be performed independently of condition
+ * events. This is more or less analogous to java.lang.Object multi-thread
+ * operations
+ *
+ * Note that all methods are const. Monitors implement logical constness, not
+ * bit constness. This allows const methods to call monitor methods without
+ * needing to cast away constness or change to non-const signatures.
+ *
+ * @version $Id:$
+ */
+class Monitor {
+
+ public:
+
+ Monitor();
+
+ virtual ~Monitor();
+
+ virtual void lock() const;
+
+ virtual void unlock() const;
+
+ virtual void wait(int64_t timeout=0LL) const;
+
+ virtual void notify() const;
+
+ virtual void notifyAll() const;
+
+ private:
+
+ class Impl;
+
+ Impl* impl_;
+};
+
+class Synchronized {
+ public:
+
+ Synchronized(const Monitor& value) :
+ monitor_(value) {
+ monitor_.lock();
+ }
+
+ ~Synchronized() {
+ monitor_.unlock();
+ }
+
+ private:
+ const Monitor& monitor_;
+};
+
+
+}}} // apache::thrift::concurrency
+
+#endif // #ifndef _THRIFT_CONCURRENCY_MONITOR_H_