add front demo in this project

LFtid1056/cloudfront/code/log4cplus/helpers/thread-config.h

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+// -*- C++ -*-
+// Module:  Log4CPLUS
+// File:    thread-config.h
+// Created: 4/2003
+// Author:  Tad E. Smith
+//
+//
+// Copyright 2003-2017 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_HELPERS_THREAD_CONFIG_HEADER_
+#define LOG4CPLUS_HELPERS_THREAD_CONFIG_HEADER_
+
+#if defined (LOG4CPLUS_HAVE_PRAGMA_ONCE)
+#pragma once
+#endif
+
+#if defined (LOG4CPLUS_USE_PTHREADS)
+#   if defined (__APPLE__)
+#     define LOG4CPLUS_USE_NAMED_POSIX_SEMAPHORE
+#   endif
+
+#elif defined(LOG4CPLUS_USE_WIN32_THREADS)
+#   define LOG4CPLUS_USE_SRW_LOCK
+//#   define LOG4CPLUS_POOR_MANS_SHAREDMUTEX
+#   undef LOG4CPLUS_HAVE_TLS_SUPPORT
+#   undef LOG4CPLUS_THREAD_LOCAL_VAR
+#   if defined (_MSC_VER)
+// The __declspec(thread) functionality is not compatible with LoadLibrary().
+// For more information why see and "Windows and TLS" note in README.
+// <http://msdn.microsoft.com/en-us/library/2s9wt68x(v=vs.100).aspx>.
+#     define LOG4CPLUS_HAVE_TLS_SUPPORT 1
+#     define LOG4CPLUS_THREAD_LOCAL_VAR __declspec(thread)
+#   endif
+
+#elif defined(LOG4CPLUS_SINGLE_THREADED)
+#   undef LOG4CPLUS_HAVE_TLS_SUPPORT
+#   undef LOG4CPLUS_THREAD_LOCAL_VAR
+
+#else
+#   error "You Must define a Threading model"
+
+#endif
+
+
+#endif // LOG4CPLUS_HELPERS_THREAD_CONFIG_HEADER_