Add signal handlers to shairplay to make it shut down gracefully
[deb_shairplay.git] / src / lib / logger.h
1 /**
2 * Copyright (C) 2011-2012 Juho Vähä-Herttua
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 */
14
15 #ifndef LOGGER_H
16 #define LOGGER_H
17
18 /* Define syslog style log levels */
19 #define LOGGER_EMERG 0 /* system is unusable */
20 #define LOGGER_ALERT 1 /* action must be taken immediately */
21 #define LOGGER_CRIT 2 /* critical conditions */
22 #define LOGGER_ERR 3 /* error conditions */
23 #define LOGGER_WARNING 4 /* warning conditions */
24 #define LOGGER_NOTICE 5 /* normal but significant condition */
25 #define LOGGER_INFO 6 /* informational */
26 #define LOGGER_DEBUG 7 /* debug-level messages */
27
28 typedef void (*logger_callback_t)(void *cls, int level, const char *msg);
29
30 typedef struct logger_s logger_t;
31
32 logger_t *logger_init();
33 void logger_destroy(logger_t *logger);
34
35 void logger_set_level(logger_t *logger, int level);
36 void logger_set_callback(logger_t *logger, logger_callback_t callback, void *cls);
37
38 void logger_log(logger_t *logger, int level, const char *fmt, ...);
39
40 #endif