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/* output.h - Output routines interfaces.
Copyright (C) 2003, 2005 Free Software Foundation, Inc.
Written by Marcus Brinkmann.
This file is part of the GNU Hurd.
The GNU Hurd 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.
The GNU Hurd 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, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. */
#ifndef _OUTPUT_H
#define _OUTPUT_H 1
/* Print the single character CHR on the output device. */
int putchar (int chr);
int puts (const char *str);
int printf (const char *fmt, ...);
/* This is not an output function, but it is part of the panic()
macro. */
void __attribute__((__noreturn__)) shutdown (void);
/* The program name. */
extern char program_name[];
/* True if debug mode is enabled. */
extern int output_debug;
/* Print a debug message. */
#define debug(fmt, ...) \
({ \
if (output_debug) \
printf ("%s:%s: " fmt, program_name, \
__FUNCTION__, ##__VA_ARGS__); \
})
/* Print an error message and fail. */
#define panic(...) \
({ \
printf ("%s: %s: error: ", program_name, __func__); \
printf (__VA_ARGS__); \
putchar ('\n'); \
shutdown (); \
})
#endif /* _OUTPUT_H */
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