/**
 * @author Quarup Barreirinhas (qsb@andrew.cmu.edu)
 * @author Modified by Naju Mancheril (naju@cmu.edu)
 *
 * Some debug macros to make your life easier.
 *
 * Set VERBOSE to 1 to print messages, and to 0 for
 *     silent (debug functions won't even be called.
 *
 * macros: PRINT_LOCATION(), DEBUG(), PANIC(),
 *         PANICL(), ASSERT(), ASSERTL()
 *
 */

#ifndef __DEBUG_H__
#define __DEBUG_H__

#include <stdarg.h> /* required for variable length args */
#include <stdlib.h>
#include <stdio.h>



/** debug on (1) or off (0) */
#define VERBOSE 1



/** debug level */
extern global_debug_level;



/* if DEBUG is on, enable DEBUG (verbose) macros */
#if VERBOSE




/** A function that prints to stdout and flushes the buffer */

void debug_(int level,
            char *filename, char *function_name, int line_no,
            const char *format, ...);




#define PRINT_LOCATION() debug_(0, __FILE__, __FUNCTION__, __LINE__, "\n");

#define DEBUG(level,format,rest...) debug_(level,__FILE__,__FUNCTION__,__LINE__,format,##rest)

#define PANIC(format, args...) { \
  DEBUG(0, format, ## args); \
  exit(0); \
}

#define PANICL(level, format, args...) { \
  if(level <= global_debug_level){ \
    PANIC(format, ## args); \
  } \
}

#define ASSERT(x) { \
  if (!(x)) { \
    DEBUG(0, "Assertion failed!\n"); \
    exit(0); \
  } \
}

#define ASSERTL(level, x) { \
  if(level <= global_debug_level){ \
    ASSERT(x); \
  } \
}


#else /* if !VERBOSE */



/* disable macros */
#define PRINT_LOCATION()

#define DEBUG(level,format, args...)

#define PANIC(format, args...)

#define PANICL(level, format, args...)

#define ASSERT(x)

#define ASSERTL(x)

#endif /* !DEBUG */




#endif /* ndef __DEBUG_H__ */