include/LogSvc.hh

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//---------------------------------------------------------------------------//
//Description: Deal with Log
//Author: Wu Chen(wuchen@mail.ihep.ac.cn)
//Created: 17 Oct, 2012
//Comment:
//---------------------------------------------------------------------------//

#ifndef LogSvc_h
#define LogSvc_h 1

#include <string>

//for locking file
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
//#include <sys/file.h>

class LogSvc
{
  public:
    LogSvc();
     ~LogSvc();

    static LogSvc* GetLogSvc();

    bool CreateFile();

    bool CheckFileExist();

    bool CheckFileAvailable();

    void SetLogFile( const char* file_name );

    int AddLog( const char* run_name);

  private:

                int OpenFile();

                void CloseFile();

    int LockFile();

    int UnLockFile();

    static LogSvc* fLogSvc;

    std::string fFileName;

                int fd;

                struct flock lock;

};

#endif

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