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dsLog.h

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/* 
 * $Id: dsLog.h,v 1.15 2003/08/28 12:21:19 dsamersoff Exp $
 * Advanced logging class 
 */

#ifndef dsLog_h
#define dsLog_h

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <fcntl.h>
#include <time.h>

#ifdef HAVE_UNISTD_H
#  include <unistd.h>
#endif

#ifdef HAVE_IO_H
#  include <io.h>
#endif

#include <dsSmartException.h>
#include <dsMD5.h>
#include <dsStrstream.h>
#include <dsform.h>

DECLARE_EXCEPTION(dsLog);

#define LOG_ALWAYS 0xFF
#define LOG_NONE   0


class dsLog
{
public:

    enum dsLogOpenFlags{ 
                    LOG_OF_NONE=0,   
                    LOG_OF_APPEND=1, 
                    LOG_OF_TRUNCATE=2, 
                    LOG_OF_ROTATE=4, 
                }; 

protected:

  int             _mode; 
  char*          _fname;
  int            _fd;

  void rotate(char *logname);
  
  dsLogOpenFlags _openflags;

public:
  dsLog(long mode, char *logname, dsLogOpenFlags openflags = LOG_OF_APPEND);
 ~dsLog();

 int  mode(int mode = -1);


 void log(int mode, const char *format, ... );
 void log(int mode, dsStrstream& inmsg);
 void vlog(int mode, const char *format, va_list ap);

};

inline int  dsLog::mode(int mode)
{ int old_mode = _mode;
  if (mode > 0)
      _mode = mode;
 return  old_mode; 
} 

inline dsLog::dsLogOpenFlags LogFlags(char *str)
{
     int rc = 0;
     if ( strstr(str, "LOG_APPEND")    != 0 ) rc |= dsLog::LOG_OF_APPEND;
     if ( strstr(str, "LOG_TRUNCATE")  != 0 ) rc |= dsLog::LOG_OF_TRUNCATE;
     if ( strstr(str, "LOG_ROTATE")    != 0 ) rc |= dsLog::LOG_OF_ROTATE;

     return (dsLog::dsLogOpenFlags) rc;
}


#endif

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