1 /*	$NetBSD: log-internal.h,v 1.2 2013/04/11 16:56:41 christos Exp $	*/
2 /*
3  * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu>
4  * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. The name of the author may not be used to endorse or promote products
15  *    derived from this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 #ifndef _LOG_H_
29 #define _LOG_H_
30 
31 #include "event2/util.h"
32 
33 #ifdef __GNUC__
34 #define EV_CHECK_FMT(a,b) __attribute__((format(printf, a, b)))
35 #define EV_NORETURN __attribute__((noreturn))
36 #else
37 #define EV_CHECK_FMT(a,b)
38 #define EV_NORETURN
39 #endif
40 
41 #define _EVENT_ERR_ABORT ((int)0xdeaddead)
42 
43 void event_err(int eval, const char *fmt, ...) EV_CHECK_FMT(2,3) EV_NORETURN;
44 void event_warn(const char *fmt, ...) EV_CHECK_FMT(1,2);
45 void event_sock_err(int eval, evutil_socket_t sock, const char *fmt, ...) EV_CHECK_FMT(3,4) EV_NORETURN;
46 void event_sock_warn(evutil_socket_t sock, const char *fmt, ...) EV_CHECK_FMT(2,3);
47 void event_errx(int eval, const char *fmt, ...) EV_CHECK_FMT(2,3) EV_NORETURN;
48 void event_warnx(const char *fmt, ...) EV_CHECK_FMT(1,2);
49 void event_msgx(const char *fmt, ...) EV_CHECK_FMT(1,2);
50 void _event_debugx(const char *fmt, ...) EV_CHECK_FMT(1,2);
51 
52 #ifdef USE_DEBUG
53 #define event_debug(x) _event_debugx x
54 #else
55 #define event_debug(x) do {;} while (/*CONSTCOND*/0)
56 #endif
57 
58 #undef EV_CHECK_FMT
59 
60 #endif
61