add front demo in this project

LFtid1056/cloudfront/code/log4cplus/thread/threads.h

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+// -*- C++ -*-
+// Module:  Log4CPLUS
+// File:    threads.h
+// Created: 6/2001
+// Author:  Tad E. Smith
+//
+//
+// Copyright 2001-2017 Tad E. Smith
+//
+// 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.
+
+/** @file */
+
+#ifndef LOG4CPLUS_THREADS_HEADER_
+#define LOG4CPLUS_THREADS_HEADER_
+
+#include <log4cplus/config.hxx>
+
+#if defined (LOG4CPLUS_HAVE_PRAGMA_ONCE)
+#pragma once
+#endif
+
+#include <memory>
+#include <thread>
+
+#include <log4cplus/tstring.h>
+#include <log4cplus/helpers/pointer.h>
+
+
+namespace log4cplus { namespace thread {
+
+
+LOG4CPLUS_EXPORT log4cplus::tstring const & getCurrentThreadName();
+LOG4CPLUS_EXPORT log4cplus::tstring const & getCurrentThreadName2();
+LOG4CPLUS_EXPORT void setCurrentThreadName(const log4cplus::tstring & name);
+LOG4CPLUS_EXPORT void setCurrentThreadName2(const log4cplus::tstring & name);
+LOG4CPLUS_EXPORT void yield();
+LOG4CPLUS_EXPORT void blockAllSignals();
+
+/**
+ * This class blocks all POSIX signals when created and unblocks them when
+ * destroyed.
+ */
+class LOG4CPLUS_EXPORT SignalsBlocker
+{
+public:
+    SignalsBlocker();
+    ~SignalsBlocker();
+
+private:
+    struct SignalsBlockerImpl;
+    std::unique_ptr<SignalsBlockerImpl> impl;
+};
+
+
+#ifndef LOG4CPLUS_SINGLE_THREADED
+
+
+/**
+ * There are many cross-platform C++ Threading libraries.  The goal of
+ * this class is not to replace (or match in functionality) those
+ * libraries.  The goal of this class is to provide a simple Threading
+ * class with basic functionality.
+ */
+class LOG4CPLUS_EXPORT AbstractThread
+    : public virtual log4cplus::helpers::SharedObject
+{
+public:
+    AbstractThread();
+    // Disallow copying of instances of this class.
+    AbstractThread(const AbstractThread&) = delete;
+    AbstractThread& operator=(const AbstractThread&) = delete;
+
+    bool isRunning() const;
+    virtual void start();
+    void join () const;
+    virtual void run() = 0;
+
+protected:
+    // Force objects to be constructed on the heap
+    virtual ~AbstractThread();
+
+private:
+    enum Flags
+    {
+        fRUNNING = 1,
+        fJOINED = 2
+    };
+
+    std::unique_ptr<std::thread> thread;
+    mutable std::atomic<int> flags;
+};
+
+typedef helpers::SharedObjectPtr<AbstractThread> AbstractThreadPtr;
+
+
+#endif // LOG4CPLUS_SINGLE_THREADED
+
+
+} } // namespace log4cplus { namespace thread {
+
+
+#endif // LOG4CPLUS_THREADS_HEADER_