threadspecificdata.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 _LOG4CXX_HELPERS_THREAD_SPECIFIC_DATA_H
#define _LOG4CXX_HELPERS_THREAD_SPECIFIC_DATA_H
 
#include <log4cxx/ndc.h>
#include <log4cxx/mdc.h>
 
namespace LOG4CXX_NS
{
namespace helpers
{
class LOG4CXX_EXPORT ThreadSpecificData
{
    public:
        ThreadSpecificData();
        ThreadSpecificData(ThreadSpecificData&& other);
        ~ThreadSpecificData();

        static ThreadSpecificData* getCurrentData();

        void recycle();

        static void put(const LogString& key, const LogString& val);

        static void push(const LogString& val);

        static void inherit(const NDC::Stack& stack);

        NDC::Stack& getStack();

        MDC::Map& getMap();

        template <typename T>
        static std::basic_ostringstream<T>& getStringStream()
        {
            return getStream(T());
        }

        template <typename T>
        static void releaseStringStream(std::basic_ostringstream<T>& ss)
        {
            releaseStream(ss);
        }

        struct NamePair
        {
            LogString idString;
            LogString threadName;
        };
        using NamePairPtr = std::shared_ptr<NamePair>;
        static NamePairPtr getNames();
    private:
        static std::basic_ostringstream<char>& getStream(const char&);
        static void releaseStream(std::basic_ostringstream<char>&);
 
#if LOG4CXX_WCHAR_T_API || LOG4CXX_LOGCHAR_IS_WCHAR
        static std::basic_ostringstream<wchar_t>& getStream(const wchar_t&);
        static void releaseStream(std::basic_ostringstream<wchar_t>&);
#endif
#if LOG4CXX_UNICHAR_API || LOG4CXX_LOGCHAR_IS_UNICHAR
        static std::basic_ostringstream<UniChar>& getStream(const UniChar&);
        static void releaseStream(std::basic_ostringstream<UniChar>&);
#endif
        LOG4CXX_DECLARE_PRIVATE_MEMBER_PTR(ThreadSpecificDataPrivate, m_priv)
};
 
}  // namespace helpers
} // namespace log4cxx
 
 
#endif