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1/* $OpenBSD: evutil.h,v 1.3 2010/04/22 08:16:44 nicm Exp $ */
2
3/*
4 * Copyright (c) 2007 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
30#ifndef _EVUTIL_H_
31#define _EVUTIL_H_
32
33/** @file evutil.h
34
35 Common convenience functions for cross-platform portability and
36 related socket manipulations.
37
38 */
39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44#include <sys/types.h>
45#include <sys/time.h>
46
47#include <inttypes.h>
48#include <stdarg.h>
49#include <stdint.h>
50
51#define ev_uint64_t uint64_t
52#define ev_int64_t int64_t
53#define ev_uint32_t uint32_t
54#define ev_uint16_t uint16_t
55#define ev_uint8_t uint8_t
56
57int evutil_socketpair(int d, int type, int protocol, int sv[2]);
58int evutil_make_socket_nonblocking(int sock);
59
60#define EVUTIL_CLOSESOCKET(s) close(s)
61#define EVUTIL_SOCKET_ERROR() (errno)
62#define EVUTIL_SET_SOCKET_ERROR(errcode) \
63 do { errno = (errcode); } while (0)
64
65/*
66 * Manipulation functions for struct timeval
67 */
68#define evutil_timeradd(tvp, uvp, vvp) timeradd((tvp), (uvp), (vvp))
69#define evutil_timersub(tvp, uvp, vvp) timersub((tvp), (uvp), (vvp))
70#define evutil_timerclear(tvp) timerclear(tvp)
71#define evutil_timercmp(tvp, uvp, cmp) timercmp((tvp), (uvp), cmp)
72#define evutil_timerisset(tvp) timerisset(tvp)
73
74/* big-int related functions */
75ev_int64_t evutil_strtoll(const char *s, char **endptr, int base);
76
77#define evutil_gettimeofday(tv, tz) gettimeofday((tv), (tz))
78
79int evutil_snprintf(char *buf, size_t buflen, const char *format, ...)
80#ifdef __GNUC__
81 __attribute__((format(printf, 3, 4)))
82#endif
83 ;
84int evutil_vsnprintf(char *buf, size_t buflen, const char *format, va_list ap);
85
86#ifdef __cplusplus
87}
88#endif
89
90#endif /* _EVUTIL_H_ */