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Diffstat (limited to 'third_party/libevent/evutil.h')
| -rw-r--r-- | third_party/libevent/evutil.h | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/third_party/libevent/evutil.h b/third_party/libevent/evutil.h new file mode 100644 index 0000000..a174e33 --- /dev/null +++ b/third_party/libevent/evutil.h @@ -0,0 +1,185 @@ +/* + * Copyright (c) 2007 Niels Provos <provos@citi.umich.edu> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _EVUTIL_H_ +#define _EVUTIL_H_ + +/** @file evutil.h + + Common convenience functions for cross-platform portability and + related socket manipulations. + + */ + +#ifdef __cplusplus +extern "C" { +#endif + +#include "event-config.h" +#ifdef _EVENT_HAVE_SYS_TIME_H +#include <sys/time.h> +#endif +#ifdef _EVENT_HAVE_STDINT_H +#include <stdint.h> +#elif defined(_EVENT_HAVE_INTTYPES_H) +#include <inttypes.h> +#endif +#ifdef _EVENT_HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif +#include <stdarg.h> + +#ifdef _EVENT_HAVE_UINT64_T +#define ev_uint64_t uint64_t +#define ev_int64_t int64_t +#elif defined(WIN32) +#define ev_uint64_t unsigned __int64 +#define ev_int64_t signed __int64 +#elif _EVENT_SIZEOF_LONG_LONG == 8 +#define ev_uint64_t unsigned long long +#define ev_int64_t long long +#elif _EVENT_SIZEOF_LONG == 8 +#define ev_uint64_t unsigned long +#define ev_int64_t long +#else +#error "No way to define ev_uint64_t" +#endif + +#ifdef _EVENT_HAVE_UINT32_T +#define ev_uint32_t uint32_t +#elif defined(WIN32) +#define ev_uint32_t unsigned int +#elif _EVENT_SIZEOF_LONG == 4 +#define ev_uint32_t unsigned long +#elif _EVENT_SIZEOF_INT == 4 +#define ev_uint32_t unsigned int +#else +#error "No way to define ev_uint32_t" +#endif + +#ifdef _EVENT_HAVE_UINT16_T +#define ev_uint16_t uint16_t +#elif defined(WIN32) +#define ev_uint16_t unsigned short +#elif _EVENT_SIZEOF_INT == 2 +#define ev_uint16_t unsigned int +#elif _EVENT_SIZEOF_SHORT == 2 +#define ev_uint16_t unsigned short +#else +#error "No way to define ev_uint16_t" +#endif + +#ifdef _EVENT_HAVE_UINT8_T +#define ev_uint8_t uint8_t +#else +#define ev_uint8_t unsigned char +#endif + +int evutil_socketpair(int d, int type, int protocol, int sv[2]); +int evutil_make_socket_nonblocking(int sock); +#ifdef WIN32 +#define EVUTIL_CLOSESOCKET(s) closesocket(s) +#else +#define EVUTIL_CLOSESOCKET(s) close(s) +#endif + +#ifdef WIN32 +#define EVUTIL_SOCKET_ERROR() WSAGetLastError() +#define EVUTIL_SET_SOCKET_ERROR(errcode) \ + do { WSASetLastError(errcode); } while (0) +#else +#define EVUTIL_SOCKET_ERROR() (errno) +#define EVUTIL_SET_SOCKET_ERROR(errcode) \ + do { errno = (errcode); } while (0) +#endif + +/* + * Manipulation functions for struct timeval + */ +#ifdef _EVENT_HAVE_TIMERADD +#define evutil_timeradd(tvp, uvp, vvp) timeradd((tvp), (uvp), (vvp)) +#define evutil_timersub(tvp, uvp, vvp) timersub((tvp), (uvp), (vvp)) +#else +#define evutil_timeradd(tvp, uvp, vvp) \ + do { \ + (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \ + (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \ + if ((vvp)->tv_usec >= 1000000) { \ + (vvp)->tv_sec++; \ + (vvp)->tv_usec -= 1000000; \ + } \ + } while (0) +#define evutil_timersub(tvp, uvp, vvp) \ + do { \ + (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \ + (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \ + if ((vvp)->tv_usec < 0) { \ + (vvp)->tv_sec--; \ + (vvp)->tv_usec += 1000000; \ + } \ + } while (0) +#endif /* !_EVENT_HAVE_HAVE_TIMERADD */ + +#ifdef _EVENT_HAVE_TIMERCLEAR +#define evutil_timerclear(tvp) timerclear(tvp) +#else +#define evutil_timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0 +#endif + +#define evutil_timercmp(tvp, uvp, cmp) \ + (((tvp)->tv_sec == (uvp)->tv_sec) ? \ + ((tvp)->tv_usec cmp (uvp)->tv_usec) : \ + ((tvp)->tv_sec cmp (uvp)->tv_sec)) + +#ifdef _EVENT_HAVE_TIMERISSET +#define evutil_timerisset(tvp) timerisset(tvp) +#else +#define evutil_timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec) +#endif + + +/* big-int related functions */ +ev_int64_t evutil_strtoll(const char *s, char **endptr, int base); + + +#ifdef _EVENT_HAVE_GETTIMEOFDAY +#define evutil_gettimeofday(tv, tz) gettimeofday((tv), (tz)) +#else +int evutil_gettimeofday(struct timeval *tv, struct timezone *tz); +#endif + +int evutil_snprintf(char *buf, size_t buflen, const char *format, ...) +#ifdef __GNUC__ + __attribute__((format(printf, 3, 4))) +#endif + ; +int evutil_vsnprintf(char *buf, size_t buflen, const char *format, va_list ap); + +#ifdef __cplusplus +} +#endif + +#endif /* _EVUTIL_H_ */ |