Моя программа не поддерживает безопасное ведение журнала при использовании библиотеки boost

В настоящее время я создаю класс, который следует использовать для ведения журнала.

Но вот одна проблема, он не поддерживает синхронизацию потоков. Нет проблем, когда я запускаю один за другим поток. Но есть проблема, когда я запускаю два или более потока одновременно.

Проблема, с которой я сталкиваюсь: «Если я создаю два потока для создания двух отдельных журналов, но два потока сталкиваются и записывают свои сообщения журнала в оба файла».

Если кто-нибудь найдет проблему, пожалуйста, помогите мне решить ее.

BoostLogger.h:

#pragma once
......
///////////////////////////////////////
//Defining Macros
///////////////////////////////////////
#define AddCommonAttr()         logging::add_common_attributes()
#define GetLoggingCore()        logging::core::get()
#define LoggingSeverity         logging::trivial::severity
#define AddFileLog              logging::add_file_log
#define ThreadValueType         logging::attributes::current_thread_id::value_type
#define Record                  logging::record
#define Extract                 logging::extract

#define ExprStream              expr::stream
#define ExprAttr                expr::attr
#define ExprFormatDateTime      expr::format_date_time
#define PosixTimeType           boost::posix_time::ptime
#define ExprMessage             expr::smessage

#define FileName                keywords::file_name
#define RotationSize            keywords::rotation_size
#define TimeBasedRotation       keywords::time_based_rotation
#define Format                  keywords::format
#define Target                  keywords::target
#define MaxSize                 keywords::max_size
#define MinFreeSpace            keywords::min_free_space
#define RotationAtTimeInterval  sinks::file::rotation_at_time_interval

#define Reset_Filter            reset_filter                                /*The reset_filter method removes the global logging filter.*/
#define Set_Filter              set_filter                                  /*The set_filter method sets the global logging filter to every log record that is processed.*/
#define SetFormatter            set_formatter
#define RecordView              logging::record_view
#define FormattingOstream       logging::formatting_ostream
#define SharedPtr               boost::shared_ptr
#define MakeShared              boost::make_shared
#define SinkFileBackend         sinks::text_file_backend
#define LockedBackend           locked_backend
#define SetFileCollector        set_file_collector
#define MakeCollector           sinks::file::make_collector
#define AddSink                 add_sink                                    /*The add_sink method adds a new sink. The sink is included into logging process immediately after being added and until being removed. No sink can be added more than once at the same time. If the sink is already registered, the call is ignored.*/
#define RemoveSink              remove_sink                                 /*The remove_sink method removes the sink from the output. The sink will not receive any log records after removal. The call has no effect if the sink is not registered.*/
#define RemoveAllSinks          remove_all_sinks                            /*The remove_all_sinks method removes all registered sinks from the output. The sinks will not receive any log records after removal.*/
#define Flush                   flush
#define ScanForFiles            scan_for_files
#define ScanAll                 sinks::file::scan_all
#define ScanMatching            sinks::file::scan_matching

#define SetExceptionHandler     set_exception_handler
#define ExceptionSuppressor     logging::make_exception_suppressor
#define MakeExceptionHandler    logging::make_exception_handler

typedef sinks::synchronous_sink < SinkFileBackend >     sink_type;

static src::logger lg;
#define WriteToLog              BOOST_LOG(lg)

/*Defining Macros for Writing log with Severity*/
//BOOST_LOG_INLINE_GLOBAL_LOGGER_DEFAULT(my_logger, src::logger_mt)
//static src::severity_logger< logging::trivial::severity_level > slg;

#define LogTrace        BOOST_LOG_SEV(obj->slg, logging::trivial::trace)        
#define LogDebug        BOOST_LOG_SEV(obj->slg, logging::trivial::debug)        
#define LogInfo         BOOST_LOG_SEV(obj->slg, logging::trivial::info)     
#define LogWarning      BOOST_LOG_SEV(obj->slg, logging::trivial::warning)  
#define LogError        BOOST_LOG_SEV(obj->slg, logging::trivial::error)        
#define LogFatal        BOOST_LOG_SEV(obj->slg, logging::trivial::fatal)        
#define _1MB    (1 * 1024 * 1024)
#define _10MB   (10 * 1024 * 1024)
#define datefmt ("_%Y-%b-%d")
#define timefmt ("_%H-%M-%S")

using namespace std;
class CBoostLogger
{
private: 
    SharedPtr< SinkFileBackend > backend;
    SharedPtr< sink_type > sink;
public:
    src::severity_logger< logging::trivial::severity_level > slg;
    CBoostLogger(void);
    ~CBoostLogger(void);
    bool StartLogger(struct FileFormat *sff);
    bool StopLogger();
    bool SetFilter(short severitylevel);
    bool SetFormat(struct LogFormat *sle);

private:
    friend void Formatter(logging::record_view const& rec, logging::formatting_ostream& strm);
};
/*This Structure is used to set the formats for file*/
struct FileFormat
{
bool includedatetofile;
bool includetimetofile;
string filename;
string filelocation;
unsigned long rotationsize;
unsigned long maxsize;

FileFormat() :  includedatetofile(false),
                includetimetofile(false),
                filename("log")         ,
                filelocation("C:/Log")  ,
                rotationsize(_1MB)      ,
                maxsize(_10MB)          {};
};

struct LogFormat
{
bool Set_LineID;
bool Set_Time;
bool Set_Severity; 
bool Set_ThreadID;
bool Set_Message;

LogFormat() :   Set_LineID(true)    ,
                Set_Time(true)      ,
                Set_Severity(true)  ,
                Set_ThreadID(true)  ,
                Set_Message(true)   {};

LogFormat(bool lineid, bool time, bool severity, bool threadid, bool message) 
    :   Set_LineID(lineid)      ,
        Set_Time(time)          ,
        Set_Severity(severity)  ,
        Set_ThreadID(threadid)  ,
        Set_Message(message)    {};
};

BoostLogger.cpp:

#pragma once
#include "BoostLogger.h"

////////////////////////////////////
//Global Declarations
////////////////////////////////////

bool SetLineID, SetTime, SetSeverity, SetThreadID, SetMessage ;

CBoostLogger::CBoostLogger(void)
{
    cout << "Calling CBoostLogger Constructor..." << endl;
    SetFilter(2);
    //GetLoggingCore()->SetExceptionHandler(MakeExceptionHandler<std::runtime_error,std::exception>(handler()));
    GetLoggingCore()->SetExceptionHandler(ExceptionSuppressor());
}

CBoostLogger::~CBoostLogger(void)
{
    GetLoggingCore() -> Reset_Filter();     
    GetLoggingCore() -> RemoveAllSinks();
}

bool CBoostLogger::StartLogger(struct FileFormat *sff )
{
    if(sff->includedatetofile)
        sff->filename += datefmt;
    if(sff->includetimetofile)
        sff->filename += timefmt;
    sff->filename += ".log";
    backend = MakeShared < SinkFileBackend >(
                FileName            =   sff->filename,                                                                                  /*< file name pattern >*/
                RotationSize        =   sff->rotationsize                                                                               /*< rotate files for every 1M >*/
                );  
    sink = MakeShared < sink_type > (backend);
    LogFormat sle;
    SetFormat(&sle);
    sink->LockedBackend()->SetFileCollector
        ( 
            MakeCollector
            ( 
                Target  =   sff->filelocation ,                 /*File Storage Location*/   
                MaxSize =   sff->maxsize                        /*Limit for folder : maxsize, where initially maxsize = 10M*/
            )
        );
    sink->LockedBackend()->ScanForFiles(ScanAll);
    GetLoggingCore()->AddSink(sink);

    AddCommonAttr();    
    BOOST_LOG_SEV(this->slg, logging::trivial::info) << "Logger Starts";
    return true;
}

/*This function used to remove the registered sink from core.*/
bool CBoostLogger::StopLogger()
{
    BOOST_LOG_SEV(this->slg, logging::trivial::info) << "Logger Stops";
    GetLoggingCore()->RemoveSink(sink);
    GetLoggingCore()->Flush();
    return true;
}

    /*This function is used to set filter level. */
bool CBoostLogger::SetFilter(short severitylevel)
{
    GetLoggingCore()->Set_Filter                
    (
        LoggingSeverity >= severitylevel
    );
    return true;
}

/*This function is used to set format for log. */
bool CBoostLogger::SetFormat(struct LogFormat *sle)
{
    SetLineID   = sle->Set_LineID;
    SetTime     = sle->Set_Time;
    SetSeverity = sle->Set_Severity;
    SetThreadID = sle->Set_ThreadID;
    SetMessage  = sle->Set_Message;
    sink->SetFormatter(&Formatter);
    return true;
}

/*This function is used to set format for the log file.*/
void Formatter(RecordView const& rec, FormattingOstream& strm)
{
    if(SetLineID)   
    {
        strm << Extract < unsigned int >    ("LineID", rec) << "\t";    // Get the LineID attribute value and put it into the stream
    }
    if(SetTime) 
    {
        strm << Extract < PosixTimeType >   ("TimeStamp", rec) << "\t"; // Get the TimeStamp attribute value and put it into the stream
    }
    if(SetSeverity) 
    {
        strm << "[ " << rec[LoggingSeverity] << " ]\t";                 // Get the Severity attribute value and put it into the stream
    }
    if(SetThreadID) 
    {
        strm << Extract < ThreadValueType > ("ThreadID", rec )<<"\t";   // Get the ThreadID attribute value and put into the stream
    }
    if(SetMessage)  
    {
        strm << rec[ExprMessage];                                       // Finally, put the record message to the stream
    }
}

struct handler
{
  void operator()(const runtime_error &ex) const
  {
    std::cerr << "\nRuntime_error: " << ex.what() << '\n';
  }

  void operator()(const exception &ex) const
  {
    std::cerr << "Exception: " << ex.what() << '\n';
  }
};

Источник.cpp:

#include "BoostLogger.h"

void func_thread(std::string fn,string fl,int num)
{
    std::string buf = "";
    char str[20];
    buf += itoa(num, str, 10);
    fn += buf;

    CBoostLogger *obj = new CBoostLogger();
    FileFormat formatobj;
    formatobj.filename = fn;
    formatobj.filelocation = fl;
    formatobj.includedatetofile = true;
    formatobj.includetimetofile = true;
    obj->StartLogger(&formatobj);

    for(int i=0;i<10000;i++)
    {
        LogTrace    << "Trace message new " << fn;
        BOOST_LOG_SEV(obj->slg,logging::trivial::trace) << "Test";

        LogDebug    << "Debug Message new"  << fn;
        LogInfo     << "Info  message" << fn;
        LogWarning  << "Warning  message new" << fn;
        LogError    << "An error  message new" << fn;
        LogFatal    << "A fatal  message new" << fn;
    }   

    LogFormat sle(true,false,false,false,true);
    obj->SetFormat(&sle);   

    for(int i=0;i<10000;i++)
    {
        LogTrace        << "Trace message new " << fn;
        LogDebug        << "Debug Message new"  << fn;
        LogInfo     << "Info  message" << fn;
        LogWarning  << "Warning  message new" << fn;
        LogError        << "An error  message new" << fn;
        LogFatal        << "A fatal  message new" << fn;
    }   
    obj->StopLogger();
    delete obj;
}

int main()
{
    //This following code makes problem.
    boost::thread *thread1 = new boost::thread(&func_thread,"Thread_","C:/BoostLog",1);
    boost::thread *thread2 = new boost::thread(&func_thread,"Thread_","C:/BoostLog",2);
    thread1->join();
    thread2->join();

    /*
    //This following is not making that problem.
    boost::thread_group t_groups;
    for(int i=1;i<=5;i++)
    {
        t_groups.create_thread(boost::bind(&func_thread,"Thread","C:/BoostLog",i));
        t_groups.join_all();
    }

    boost::thread_group tgroup;
    boost::thread *threads;
    for(int i=0;i<20;i++)
    {
        threads=new boost::thread(&func_thread,"Thread","C:/BoostLog",i);
        tgroup.add_thread(threads);
        std::cout << "\nThread "<<i<<" is created whose id is : "<<threads->get_id();
        threads->join();
    }   
    */

    return 0;
}   

Если вам нужна дополнительная информация по этому поводу, пожалуйста, спросите меня.

Я хочу создать потокобезопасный регистратор, используя библиотеку boost. Помогите мне, если можете.

И еще одно, если возможно, потоки должны выполняться одновременно.

Спасибо.