1 /*
2 ** Logging framework.
3 **
4 ** Copyright (C) 2014 Michael Smith <msmith@icecast.org>,
5 **                    Ralph Giles <giles@xiph.org>,
6 **                    Ed "oddsock" Zaleski <oddsock@xiph.org>,
7 **                    Karl Heyes <karl@xiph.org>,
8 **                    Jack Moffitt <jack@icecast.org>,
9 **                    Philipp "ph3-der-loewe" Schafft <lion@lion.leolix.org>,
10 **                    Thomas Ruecker <thomas@ruecker.fi>
11 **
12 ** This library is free software; you can redistribute it and/or
13 ** modify it under the terms of the GNU Library General Public
14 ** License as published by the Free Software Foundation; either
15 ** version 2 of the License, or (at your option) any later version.
16 **
17 ** This library is distributed in the hope that it will be useful,
18 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
20 ** Library General Public License for more details.
21 **
22 ** You should have received a copy of the GNU Library General Public
23 ** License along with this library; if not, write to the
24 ** Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
25 ** Boston, MA  02110-1301, USA.
26 **
27 */
28 
29 #ifndef __LOG_H__
30 #define __LOG_H__
31 
32 #include <stdio.h>
33 
34 #define LOG_EINSANE -1
35 #define LOG_ENOMORELOGS -2
36 #define LOG_ECANTOPEN -3
37 #define LOG_ENOTOPEN -4
38 #define LOG_ENOTIMPL -5
39 
40 #ifdef _WIN32
41 #define IO_BUFFER_TYPE _IONBF
42 #else
43 #define IO_BUFFER_TYPE _IOLBF
44 #endif
45 
46 void log_initialize(void);
47 int log_open_file(FILE *file);
48 int log_open(const char *filename);
49 int log_open_with_buffer(const char *filename, int size);
50 void log_set_level(int log_id, unsigned level);
51 void log_set_trigger(int id, unsigned trigger);
52 int  log_set_filename(int id, const char *filename);
53 void log_set_lines_kept (int log_id, unsigned int count);
54 void log_contents (int log_id, char **_contents, unsigned int *_len);
55 int log_set_archive_timestamp(int id, int value);
56 void log_flush(int log_id);
57 void log_reopen(int log_id);
58 void log_close(int log_id);
59 void log_shutdown(void);
60 
61 void log_write(int log_id, unsigned priority, const char *cat, const char *func,
62         const char *fmt, ...);
63 void log_write_direct(int log_id, const char *fmt, ...);
64 
65 #endif  /* __LOG_H__ */
66