xref: /openbsd/lib/libevent/log.h (revision 8ead113e)
1 /*	$OpenBSD: log.h,v 1.6 2010/04/21 20:02:40 nicm Exp $	*/
2 
3 /*
4  * Copyright (c) 2000-2004 Niels Provos <provos@citi.umich.edu>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. The name of the author may not be used to endorse or promote products
16  *    derived from this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  */
29 #ifndef _LOG_H_
30 #define _LOG_H_
31 
32 #ifdef __GNUC__
33 #define EV_CHECK_FMT(a,b) __attribute__((format(printf, a, b)))
34 #else
35 #define EV_CHECK_FMT(a,b)
36 #endif
37 
38 void event_err(int eval, const char *fmt, ...) EV_CHECK_FMT(2,3);
39 void event_warn(const char *fmt, ...) EV_CHECK_FMT(1,2);
40 void event_errx(int eval, const char *fmt, ...) EV_CHECK_FMT(2,3);
41 void event_warnx(const char *fmt, ...) EV_CHECK_FMT(1,2);
42 void event_msgx(const char *fmt, ...) EV_CHECK_FMT(1,2);
43 void _event_debugx(const char *fmt, ...) EV_CHECK_FMT(1,2);
44 
45 #ifdef USE_DEBUG
46 #define event_debug(x) _event_debugx x
47 #else
48 #define event_debug(x) do {;} while (0)
49 #endif
50 
51 #undef EV_CHECK_FMT
52 
53 #endif
54