ladish/common/debug.h

/*
 *   LASH
 *
 *   Copyright (C) 2008 Nedko Arnaudov <nedko@arnaudov.name>
 *   Copyright (C) 2008 Juuso Alasuutari <juuso.alasuutari@gmail.com>
 *   Copyright (C) 2002 Robert Ham <rah@bash.sh>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef __LASH_DEBUG_H__
#define __LASH_DEBUG_H__

#define ANSI_BOLD_ON    "\033[1m"
#define ANSI_BOLD_OFF   "\033[22m"
#define ANSI_COLOR_RED  "\033[31m"
#define ANSI_COLOR_YELLOW "\033[33m"
#define ANSI_RESET      "\033[0m"

#include <stdio.h>

#include "config.h"

/* fallback for old gcc versions,
   http://gcc.gnu.org/onlinedocs/gcc/Function-Names.html */
#if __STDC_VERSION__ < 199901L
# if __GNUC__ >= 2
#  define __func__ __FUNCTION__
# else
#  define __func__ "<unknown>"
# endif
#endif

#ifndef DEBUG_OUTPUT_TERMINAL

# define LASH_LOG_LEVEL_DEBUG        0
# define LASH_LOG_LEVEL_INFO         1
# define LASH_LOG_LEVEL_WARN         2
# define LASH_LOG_LEVEL_ERROR        3
# define LASH_LOG_LEVEL_ERROR_PLAIN  4

void
lash_log(unsigned int  level,
         const char   *format,
                       ...);

# ifdef LASH_DEBUG
#   define lash_debug(fmt, args...) \
      lash_log(LASH_LOG_LEVEL_DEBUG, "%s:%d:%s: " fmt "\n", __FILE__, __LINE__, __func__, ## args)
# else
#   define lash_debug(fmt, args...)
# endif /* LASH_DEBUG */

# define lash_info(fmt, args...) lash_log(LASH_LOG_LEVEL_INFO, fmt "\n", ## args)
# define lash_warn(fmt, args...) lash_log(LASH_LOG_LEVEL_WARN, ANSI_COLOR_YELLOW "WARNING: " ANSI_RESET "%s: " fmt "\n", __func__, ## args)
# define lash_error(fmt, args...) lash_log(LASH_LOG_LEVEL_ERROR, ANSI_COLOR_RED "ERROR: " ANSI_RESET "%s: " fmt "\n", __func__, ## args)
# define lash_error_plain(fmt, args...) lash_log(LASH_LOG_LEVEL_ERROR_PLAIN, ANSI_COLOR_RED "ERROR: " ANSI_RESET fmt "\n", ## args)

#else /* DEBUG_OUTPUT_TERMINAL */

# ifdef LASH_DEBUG
#   define lash_debug(fmt, args...) \
      printf("%s:%d:%s: " fmt "\n", __FILE__, __LINE__, __func__, ## args)
# else
#   define lash_debug(fmt, args...)
# endif /* LASH_DEBUG */

# define lash_info(fmt, args...) printf(fmt "\n", ## args)
# define lash_warn(fmt, args...) printf(fmt "\n", ## args)
# define lash_error(fmt, args...) fprintf(stderr, "%s: " fmt "\n", __func__, ## args)
# define lash_error_plain(fmt, args...) fprintf(stderr, fmt "\n", ## args)

#endif /* DEBUG_OUTPUT_TERMINAL */

#endif /* __LASH_DEBUG_H__ */