add front demo in this project

LFtid1056/cloudfront/code/log4cplus/spi/objectregistry.h

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+// -*- C++ -*-
+// Module:  Log4CPLUS
+// File:    objectregistry.h
+// Created: 3/2003
+// 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_SPI_OBJECT_REGISTRY_HEADER_
+#define LOG4CPLUS_SPI_OBJECT_REGISTRY_HEADER_
+
+#include <log4cplus/config.hxx>
+
+#if defined (LOG4CPLUS_HAVE_PRAGMA_ONCE)
+#pragma once
+#endif
+
+#include <log4cplus/tstring.h>
+#include <log4cplus/thread/syncprims.h>
+#include <map>
+#include <memory>
+#include <vector>
+
+
+namespace log4cplus {
+    namespace spi {
+
+        /**
+         * This is the base class used to implement the functionality required
+         * by the ObjectRegistry template class.
+         */
+        class LOG4CPLUS_EXPORT ObjectRegistryBase {
+        public:
+          // public methods
+            /**
+             * Tests to see whether or not an object is bound in the
+             * registry as <code>name</code>.
+             */
+            bool exists(const log4cplus::tstring& name) const;
+
+            /**
+             * Returns the names of all registered objects.
+             */
+            std::vector<log4cplus::tstring> getAllNames() const;
+
+            //! This function is internal implementation detail.
+            //! It is related to work-around needed for initialization when
+            //! using C++11 threads and mutexes.
+            void _enableLocking (bool);
+
+        protected:
+          // Ctor and Dtor
+            ObjectRegistryBase();
+            virtual ~ObjectRegistryBase();
+
+          // protected methods
+            /**
+             * Used to enter an object into the registry.  (The registry now
+             * owns <code>object</code>.)
+             */
+            bool putVal(const log4cplus::tstring& name, void* object);
+
+            /**
+             * Used to retrieve an object from the registry.  (The registry
+             * owns the returned pointer.)
+             */
+            void* getVal(const log4cplus::tstring& name) const;
+
+            /**
+             * Deletes <code>object</code>.
+             */
+            virtual void deleteObject(void *object) const = 0;
+
+            /**
+             * Deletes all objects from this registry.
+             */
+            virtual void clear();
+
+          // Types
+            typedef std::map<log4cplus::tstring, void*> ObjectMap;
+
+          // Data
+            thread::Mutex mutex;
+            ObjectMap data;
+
+        private:
+            ObjectRegistryBase (ObjectRegistryBase const &);
+            ObjectRegistryBase & operator = (ObjectRegistryBase const &);
+
+            bool volatile locking;
+        };
+
+    }
+}
+
+
+#endif // LOG4CPLUS_SPI_OBJECT_REGISTRY_HEADER_
+