multiprocessrollingfileappender.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.
 */
 
#if !defined(LOG4CXX_ROLLING_MULTIPROCESS_ROLLING_FILE_APPENDER_H)
#define LOG4CXX_ROLLING_MULTIPROCESS_ROLLING_FILE_APPENDER_H
 
#include <log4cxx/fileappender.h>
#include <log4cxx/rolling/rollingfileappender.h>
#include <log4cxx/rolling/triggeringpolicy.h>
 
namespace LOG4CXX_NS
{
namespace rolling
{
 

class LOG4CXX_EXPORT MultiprocessRollingFileAppender : public RollingFileAppender
{
        DECLARE_LOG4CXX_OBJECT(MultiprocessRollingFileAppender)
        BEGIN_LOG4CXX_CAST_MAP()
        LOG4CXX_CAST_ENTRY(MultiprocessRollingFileAppender)
        LOG4CXX_CAST_ENTRY_CHAIN(RollingFileAppender)
        END_LOG4CXX_CAST_MAP()
    protected:
        struct MultiprocessRollingFileAppenderPriv;
 
    public:
        MultiprocessRollingFileAppender();
 
        using RollingFileAppender::activateOptions;
        void activateOptions(  ) override;

        bool rollover();
 
    protected:

        void subAppend( const spi::LoggingEventPtr& event ) override;
 
    protected:
        helpers::WriterPtr createWriter(const helpers::OutputStreamPtr& os) override;
 
    private:
        bool synchronizedRollover(const TriggeringPolicyPtr& trigger = TriggeringPolicyPtr() );

        void setFileLength(size_t length);

        bool isRolloverCheckNeeded();

        bool isAlreadyRolled(const LogString& fileName, size_t* pSize = 0);

        bool getCurrentFileSize(size_t* pSize);

        void reopenFile(const LogString& fileName);
};
 
LOG4CXX_PTR_DEF(MultiprocessRollingFileAppender);
 
}
}
 
#endif