add front demo in this project

LFtid1056/cloudfront/code/log4cplus/thread/impl/threads-impl.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_IMPL_THREADS_IMPL_HEADER_
+#define LOG4CPLUS_IMPL_THREADS_IMPL_HEADER_
+
+#include <log4cplus/config.hxx>
+
+#if defined (LOG4CPLUS_HAVE_PRAGMA_ONCE)
+#pragma once
+#endif
+
+#if defined (_WIN32)
+#include <log4cplus/config/windowsh-inc.h>
+#endif
+#include <log4cplus/tstring.h>
+#include <log4cplus/helpers/pointer.h>
+#include <log4cplus/thread/threads.h>
+
+#if ! defined (INSIDE_LOG4CPLUS)
+#  error "This header must not be be used outside log4cplus' implementation files."
+#endif
+
+
+namespace log4cplus { namespace thread { namespace impl {
+
+
+#if defined (LOG4CPLUS_USE_PTHREADS)
+
+typedef pthread_t os_handle_type;
+typedef pthread_t os_id_type;
+
+
+inline
+pthread_t
+getCurrentThreadId ()
+{
+    return pthread_self ();
+}
+
+
+#elif defined (LOG4CPLUS_USE_WIN32_THREADS)
+
+typedef HANDLE os_handle_type;
+typedef DWORD os_id_type;
+
+
+inline
+DWORD
+getCurrentThreadId ()
+{
+    return GetCurrentThreadId ();
+}
+
+
+#elif defined (LOG4CPLUS_SINGLE_THREADED)
+
+typedef void * os_handle_type;
+typedef int os_id_type;
+
+
+inline
+int
+getCurrentThreadId ()
+{
+    return 1;
+}
+
+
+#endif
+
+
+} } } // namespace log4cplus { namespace thread { namespace impl {
+
+
+#endif // LOG4CPLUS_IMPL_THREADS_IMPL_HEADER_