1c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott/* 2c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * Copyright (c) 2007 Niels Provos <provos@citi.umich.edu> 3c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * All rights reserved. 4c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * 5c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * Redistribution and use in source and binary forms, with or without 6c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * modification, are permitted provided that the following conditions 7c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * are met: 8c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * 1. Redistributions of source code must retain the above copyright 9c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * notice, this list of conditions and the following disclaimer. 10c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * 2. Redistributions in binary form must reproduce the above copyright 11c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * notice, this list of conditions and the following disclaimer in the 12c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * documentation and/or other materials provided with the distribution. 13c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * 3. The name of the author may not be used to endorse or promote products 14c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * derived from this software without specific prior written permission. 15c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * 16c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott */ 27c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifndef _EVUTIL_H_ 28c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define _EVUTIL_H_ 29c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 30c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott/** @file evutil.h 31c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 32c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott Common convenience functions for cross-platform portability and 33c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott related socket manipulations. 34c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 35c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott */ 36c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 37c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef __cplusplus 38c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottextern "C" { 39c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 40c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 41c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include "event-config.h" 42c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef _EVENT_HAVE_SYS_TIME_H 43c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <sys/time.h> 44c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 45c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef _EVENT_HAVE_STDINT_H 46c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <stdint.h> 47c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#elif defined(_EVENT_HAVE_INTTYPES_H) 48c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <inttypes.h> 49c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 50c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef _EVENT_HAVE_SYS_TYPES_H 51c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <sys/types.h> 52c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 53c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <stdarg.h> 54c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 55c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef _EVENT_HAVE_UINT64_T 56c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define ev_uint64_t uint64_t 57c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define ev_int64_t int64_t 58c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#elif defined(WIN32) 59c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define ev_uint64_t unsigned __int64 60c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define ev_int64_t signed __int64 61c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#elif _EVENT_SIZEOF_LONG_LONG == 8 62c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define ev_uint64_t unsigned long long 63c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define ev_int64_t long long 64c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#elif _EVENT_SIZEOF_LONG == 8 65c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define ev_uint64_t unsigned long 66c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define ev_int64_t long 67c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#else 68c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#error "No way to define ev_uint64_t" 69c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 70c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 71c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef _EVENT_HAVE_UINT32_T 72c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define ev_uint32_t uint32_t 73c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#elif defined(WIN32) 74c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define ev_uint32_t unsigned int 75c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#elif _EVENT_SIZEOF_LONG == 4 76c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define ev_uint32_t unsigned long 77c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#elif _EVENT_SIZEOF_INT == 4 78c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define ev_uint32_t unsigned int 79c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#else 80c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#error "No way to define ev_uint32_t" 81c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 82c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 83c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef _EVENT_HAVE_UINT16_T 84c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define ev_uint16_t uint16_t 85c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#elif defined(WIN32) 86c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define ev_uint16_t unsigned short 87c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#elif _EVENT_SIZEOF_INT == 2 88c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define ev_uint16_t unsigned int 89c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#elif _EVENT_SIZEOF_SHORT == 2 90c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define ev_uint16_t unsigned short 91c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#else 92c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#error "No way to define ev_uint16_t" 93c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 94c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 95c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef _EVENT_HAVE_UINT8_T 96c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define ev_uint8_t uint8_t 97c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#else 98c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define ev_uint8_t unsigned char 99c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 100c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 101c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottint evutil_socketpair(int d, int type, int protocol, int sv[2]); 102c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottint evutil_make_socket_nonblocking(int sock); 103c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef WIN32 104c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define EVUTIL_CLOSESOCKET(s) closesocket(s) 105c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#else 106c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define EVUTIL_CLOSESOCKET(s) close(s) 107c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 108c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 109c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef WIN32 110c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define EVUTIL_SOCKET_ERROR() WSAGetLastError() 111c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define EVUTIL_SET_SOCKET_ERROR(errcode) \ 112c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott do { WSASetLastError(errcode); } while (0) 113c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#else 114c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define EVUTIL_SOCKET_ERROR() (errno) 115c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define EVUTIL_SET_SOCKET_ERROR(errcode) \ 116c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott do { errno = (errcode); } while (0) 117c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 118c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 119c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott/* 120c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott * Manipulation functions for struct timeval 121c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott */ 122c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef _EVENT_HAVE_TIMERADD 123c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define evutil_timeradd(tvp, uvp, vvp) timeradd((tvp), (uvp), (vvp)) 124c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define evutil_timersub(tvp, uvp, vvp) timersub((tvp), (uvp), (vvp)) 125c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#else 126c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define evutil_timeradd(tvp, uvp, vvp) \ 127c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott do { \ 128c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \ 129c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \ 130c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if ((vvp)->tv_usec >= 1000000) { \ 131c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott (vvp)->tv_sec++; \ 132c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott (vvp)->tv_usec -= 1000000; \ 133c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } \ 134c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } while (0) 135c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define evutil_timersub(tvp, uvp, vvp) \ 136c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott do { \ 137c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \ 138c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \ 139c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if ((vvp)->tv_usec < 0) { \ 140c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott (vvp)->tv_sec--; \ 141c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott (vvp)->tv_usec += 1000000; \ 142c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } \ 143c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } while (0) 144c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif /* !_EVENT_HAVE_HAVE_TIMERADD */ 145c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 146c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef _EVENT_HAVE_TIMERCLEAR 147c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define evutil_timerclear(tvp) timerclear(tvp) 148c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#else 149c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define evutil_timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0 150c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 151c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 152c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define evutil_timercmp(tvp, uvp, cmp) \ 153c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott (((tvp)->tv_sec == (uvp)->tv_sec) ? \ 154c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott ((tvp)->tv_usec cmp (uvp)->tv_usec) : \ 155c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott ((tvp)->tv_sec cmp (uvp)->tv_sec)) 156c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 157c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef _EVENT_HAVE_TIMERISSET 158c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define evutil_timerisset(tvp) timerisset(tvp) 159c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#else 160c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define evutil_timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec) 161c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 162c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 163c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 164c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott/* big-int related functions */ 165c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottev_int64_t evutil_strtoll(const char *s, char **endptr, int base); 166c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 167c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 168c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef _EVENT_HAVE_GETTIMEOFDAY 169c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define evutil_gettimeofday(tv, tz) gettimeofday((tv), (tz)) 170c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#else 171c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottstruct timezone; 172c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottint evutil_gettimeofday(struct timeval *tv, struct timezone *tz); 173c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 174c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 175c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottint evutil_snprintf(char *buf, size_t buflen, const char *format, ...) 176c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef __GNUC__ 177c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott __attribute__((format(printf, 3, 4))) 178c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 179c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott ; 180c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottint evutil_vsnprintf(char *buf, size_t buflen, const char *format, va_list ap); 181c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 182c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef __cplusplus 183c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 184c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 185c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 186c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif /* _EVUTIL_H_ */ 187