squashfs-tools/squashfs-tools/error.h

#ifndef ERROR_H
#define ERROR_H
/*
 * Create a squashfs filesystem.  This is a highly compressed read only
 * filesystem.
 *
 * Copyright (c) 2012, 2013, 2014
 * Phillip Lougher <phillip@squashfs.org.uk>
 *
 * 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,
 * 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
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 * error.h
 */

extern int exit_on_error;

extern void prep_exit();
extern void progressbar_error(char *fmt, ...);
extern void progressbar_info(char *fmt, ...);

#ifdef SQUASHFS_TRACE
#define TRACE(s, args...) \
		do { \
			progressbar_info("squashfs: "s, ## args);\
		} while(0)
#else
#define TRACE(s, args...)
#endif

#define INFO(s, args...) \
		do {\
			 if(!silent)\
				progressbar_info(s, ## args);\
		} while(0)

#define ERROR(s, args...) \
		do {\
			progressbar_error(s, ## args); \
		} while(0)

#define ERROR_START(s, args...) \
		do { \
			disable_progress_bar(); \
			fprintf(stderr, s, ## args); \
		} while(0)

#define ERROR_EXIT(s, args...) \
		do {\
			if (exit_on_error) { \
				fprintf(stderr, "\n"); \
				EXIT_MKSQUASHFS(); \
			} else { \
				fprintf(stderr, s, ## args); \
				enable_progress_bar(); \
			} \
		} while(0)

#define EXIT_MKSQUASHFS() \
		do {\
			prep_exit();\
			exit(1);\
		} while(0)

#define BAD_ERROR(s, args...) \
		do {\
			progressbar_error("FATAL ERROR:" s, ##args); \
			EXIT_MKSQUASHFS();\
		} while(0)

#define EXIT_UNSQUASH(s, args...) BAD_ERROR(s, ##args)

#define MEM_ERROR() \
	do {\
		progressbar_error("FATAL ERROR: Out of memory (%s)\n", \
								__func__); \
		EXIT_MKSQUASHFS();\
	} while(0)
#endif