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/PosixThreadFactory.h b/lib/cpp/src/concurrency/PosixThreadFactory.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_POSIXTHREADFACTORY_H_
+#define _THRIFT_CONCURRENCY_POSIXTHREADFACTORY_H_ 1
+
+#include "Thread.h"
+
+#include <boost/shared_ptr.hpp>
+
+namespace apache { namespace thrift { namespace concurrency {
+
+/**
+ * A thread factory to create posix threads
+ *
+ * @version $Id:$
+ */
+class PosixThreadFactory : public ThreadFactory {
+
+ public:
+
+  /**
+   * POSIX Thread scheduler policies
+   */
+  enum POLICY {
+    OTHER,
+    FIFO,
+    ROUND_ROBIN
+  };
+
+  /**
+   * POSIX Thread scheduler relative priorities,
+   *
+   * Absolute priority is determined by scheduler policy and OS. This
+   * enumeration specifies relative priorities such that one can specify a
+   * priority withing a giving scheduler policy without knowing the absolute
+   * value of the priority.
+   */
+  enum PRIORITY {
+    LOWEST = 0,
+    LOWER = 1,
+    LOW = 2,
+    NORMAL = 3,
+    HIGH = 4,
+    HIGHER = 5,
+    HIGHEST = 6,
+    INCREMENT = 7,
+    DECREMENT = 8
+  };
+
+  /**
+   * Posix thread (pthread) factory.  All threads created by a factory are reference-counted
+   * via boost::shared_ptr and boost::weak_ptr.  The factory guarantees that threads and
+   * the Runnable tasks they host will be properly cleaned up once the last strong reference
+   * to both is given up.
+   *
+   * Threads are created with the specified policy, priority, stack-size and detachable-mode
+   * detached means the thread is free-running and will release all system resources the
+   * when it completes.  A detachable thread is not joinable.  The join method
+   * of a detachable thread will return immediately with no error.
+   *
+   * By default threads are not joinable.
+   */
+
+  PosixThreadFactory(POLICY policy=ROUND_ROBIN, PRIORITY priority=NORMAL, int stackSize=1, bool detached=true);
+
+  // From ThreadFactory;
+  boost::shared_ptr<Thread> newThread(boost::shared_ptr<Runnable> runnable) const;
+
+  // From ThreadFactory;
+  Thread::id_t getCurrentThreadId() const;
+
+  /**
+   * Gets stack size for created threads
+   *
+   * @return int size in megabytes
+   */
+  virtual int getStackSize() const;
+
+  /**
+   * Sets stack size for created threads
+   *
+   * @param value size in megabytes
+   */
+  virtual void setStackSize(int value);
+
+  /**
+   * Gets priority relative to current policy
+   */
+  virtual PRIORITY getPriority() const;
+
+  /**
+   * Sets priority relative to current policy
+   */
+  virtual void setPriority(PRIORITY priority);
+
+  /**
+   * Sets detached mode of threads
+   */
+  virtual void setDetached(bool detached);
+
+  /**
+   * Gets current detached mode
+   */
+  virtual bool isDetached() const;
+
+ private:
+  class Impl;
+  boost::shared_ptr<Impl> impl_;
+};
+
+}}} // apache::thrift::concurrency
+
+#endif // #ifndef _THRIFT_CONCURRENCY_POSIXTHREADFACTORY_H_