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Merge from disorder.dev.
[disorder] / lib / log.h
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1/*
2 * This file is part of DisOrder.
3 * Copyright (C) 2004, 2005, 2007, 2008 Richard Kettlewell
4 *
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18/** @file lib/log.h
19 * @brief Errors and logging
20 */
21
22#ifndef LOG_H
23#define LOG_H
24
25#include <stdarg.h>
26
27struct log_output;
28
29void set_progname(char **argv);
30
31void elog(int pri, int errno_value, const char *fmt, va_list ap);
32
33void disorder_fatal(int errno_value, const char *msg, ...) attribute((noreturn))
34 attribute((format (printf, 2, 3)));
35void disorder_error(int errno_value, const char *msg, ...)
36 attribute((format (printf, 2, 3)));
37void disorder_info(const char *msg, ...)
38 attribute((format (printf, 1, 2)));
39void disorder_debug(const char *msg, ...)
40 attribute((format (printf, 1, 2)));
41/* report a message of the given class. @errno_value@ if present an
42 * non-zero is included. @fatal@ terminates the process. */
43
44/** @brief Backward-compatibility alias for disorder_fatal() */
45#define fatal disorder_fatal
46
47/** @brief Backward-compatibility alias for disorder_error() */
48#define error disorder_error
49
50/** @brief Backward-compatibility alias for disorder_info() */
51#define info disorder_info
52
53/** @brief Backward-compatibility alias for disorder_debug() */
54#define debug disorder_debug
55
56extern int debugging;
57/* set when debugging enabled */
58
59extern void (*exitfn)(int) attribute((noreturn));
60/* how to exit the program (for fatal) */
61
62extern const char *progname;
63/* program name */
64
65extern struct log_output log_stderr, log_syslog, *log_default;
66/* some typical outputs */
67
68extern const char *debug_filename;
69extern int debug_lineno;
70extern int logdate;
71
72#define D(x) do { \
73 if(debugging) { \
74 debug_filename=__FILE__; \
75 debug_lineno=__LINE__; \
76 debug x; \
77 } \
78} while(0)
79
80#endif /* LOG_H */
81
82/*
83Local Variables:
84c-basic-offset:2
85comment-column:40
86fill-column:79
87End:
88*/