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 41 extern "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 57 int evutil_socketpair(int d, int type, int protocol, int sv[2]); 58 int 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 */ 75 ev_int64_t evutil_strtoll(const char *s, char **endptr, int base); 76 77 #define evutil_gettimeofday(tv, tz) gettimeofday((tv), (tz)) 78 79 int evutil_snprintf(char *buf, size_t buflen, const char *format, ...) 80 #ifdef __GNUC__ 81 __attribute__((format(printf, 3, 4))) 82 #endif 83 ; 84 int 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_ */ 91