1*2b15cb3dSCy Schubert /* 2*2b15cb3dSCy Schubert * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu> 3*2b15cb3dSCy Schubert * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson 4*2b15cb3dSCy Schubert * 5*2b15cb3dSCy Schubert * Redistribution and use in source and binary forms, with or without 6*2b15cb3dSCy Schubert * modification, are permitted provided that the following conditions 7*2b15cb3dSCy Schubert * are met: 8*2b15cb3dSCy Schubert * 1. Redistributions of source code must retain the above copyright 9*2b15cb3dSCy Schubert * notice, this list of conditions and the following disclaimer. 10*2b15cb3dSCy Schubert * 2. Redistributions in binary form must reproduce the above copyright 11*2b15cb3dSCy Schubert * notice, this list of conditions and the following disclaimer in the 12*2b15cb3dSCy Schubert * documentation and/or other materials provided with the distribution. 13*2b15cb3dSCy Schubert * 3. The name of the author may not be used to endorse or promote products 14*2b15cb3dSCy Schubert * derived from this software without specific prior written permission. 15*2b15cb3dSCy Schubert * 16*2b15cb3dSCy Schubert * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17*2b15cb3dSCy Schubert * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18*2b15cb3dSCy Schubert * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19*2b15cb3dSCy Schubert * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20*2b15cb3dSCy Schubert * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21*2b15cb3dSCy Schubert * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22*2b15cb3dSCy Schubert * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23*2b15cb3dSCy Schubert * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24*2b15cb3dSCy Schubert * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25*2b15cb3dSCy Schubert * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26*2b15cb3dSCy Schubert */ 27*2b15cb3dSCy Schubert #ifndef TIME_INTERNAL_H_INCLUDED_ 28*2b15cb3dSCy Schubert #define TIME_INTERNAL_H_INCLUDED_ 29*2b15cb3dSCy Schubert 30*2b15cb3dSCy Schubert #include "event2/event-config.h" 31*2b15cb3dSCy Schubert #include "evconfig-private.h" 32*2b15cb3dSCy Schubert 33*2b15cb3dSCy Schubert #ifdef EVENT__HAVE_MACH_MACH_TIME_H 34*2b15cb3dSCy Schubert /* For mach_timebase_info */ 35*2b15cb3dSCy Schubert #include <mach/mach_time.h> 36*2b15cb3dSCy Schubert #endif 37*2b15cb3dSCy Schubert 38*2b15cb3dSCy Schubert #include <time.h> 39*2b15cb3dSCy Schubert 40*2b15cb3dSCy Schubert #include "event2/util.h" 41*2b15cb3dSCy Schubert 42*2b15cb3dSCy Schubert #ifdef __cplusplus 43*2b15cb3dSCy Schubert extern "C" { 44*2b15cb3dSCy Schubert #endif 45*2b15cb3dSCy Schubert 46*2b15cb3dSCy Schubert #if defined(EVENT__HAVE_CLOCK_GETTIME) && defined(CLOCK_MONOTONIC) 47*2b15cb3dSCy Schubert #define HAVE_POSIX_MONOTONIC 48*2b15cb3dSCy Schubert #elif defined(EVENT__HAVE_MACH_ABSOLUTE_TIME) 49*2b15cb3dSCy Schubert #define HAVE_MACH_MONOTONIC 50*2b15cb3dSCy Schubert #elif defined(_WIN32) 51*2b15cb3dSCy Schubert #define HAVE_WIN32_MONOTONIC 52*2b15cb3dSCy Schubert #else 53*2b15cb3dSCy Schubert #define HAVE_FALLBACK_MONOTONIC 54*2b15cb3dSCy Schubert #endif 55*2b15cb3dSCy Schubert 56*2b15cb3dSCy Schubert long evutil_tv_to_msec_(const struct timeval *tv); 57*2b15cb3dSCy Schubert void evutil_usleep_(const struct timeval *tv); 58*2b15cb3dSCy Schubert 59*2b15cb3dSCy Schubert #ifdef _WIN32 60*2b15cb3dSCy Schubert typedef ULONGLONG (WINAPI *ev_GetTickCount_func)(void); 61*2b15cb3dSCy Schubert #endif 62*2b15cb3dSCy Schubert 63*2b15cb3dSCy Schubert struct evutil_monotonic_timer { 64*2b15cb3dSCy Schubert 65*2b15cb3dSCy Schubert #ifdef HAVE_MACH_MONOTONIC 66*2b15cb3dSCy Schubert struct mach_timebase_info mach_timebase_units; 67*2b15cb3dSCy Schubert #endif 68*2b15cb3dSCy Schubert 69*2b15cb3dSCy Schubert #ifdef HAVE_POSIX_MONOTONIC 70*2b15cb3dSCy Schubert int monotonic_clock; 71*2b15cb3dSCy Schubert #endif 72*2b15cb3dSCy Schubert 73*2b15cb3dSCy Schubert #ifdef HAVE_WIN32_MONOTONIC 74*2b15cb3dSCy Schubert ev_GetTickCount_func GetTickCount64_fn; 75*2b15cb3dSCy Schubert ev_GetTickCount_func GetTickCount_fn; 76*2b15cb3dSCy Schubert ev_uint64_t last_tick_count; 77*2b15cb3dSCy Schubert ev_uint64_t adjust_tick_count; 78*2b15cb3dSCy Schubert 79*2b15cb3dSCy Schubert ev_uint64_t first_tick; 80*2b15cb3dSCy Schubert ev_uint64_t first_counter; 81*2b15cb3dSCy Schubert double usec_per_count; 82*2b15cb3dSCy Schubert int use_performance_counter; 83*2b15cb3dSCy Schubert #endif 84*2b15cb3dSCy Schubert 85*2b15cb3dSCy Schubert struct timeval adjust_monotonic_clock; 86*2b15cb3dSCy Schubert struct timeval last_time; 87*2b15cb3dSCy Schubert }; 88*2b15cb3dSCy Schubert 89*2b15cb3dSCy Schubert #define EV_MONOT_PRECISE 1 90*2b15cb3dSCy Schubert #define EV_MONOT_FALLBACK 2 91*2b15cb3dSCy Schubert 92*2b15cb3dSCy Schubert int evutil_configure_monotonic_time_(struct evutil_monotonic_timer *mt, 93*2b15cb3dSCy Schubert int flags); 94*2b15cb3dSCy Schubert int evutil_gettime_monotonic_(struct evutil_monotonic_timer *mt, struct timeval *tv); 95*2b15cb3dSCy Schubert 96*2b15cb3dSCy Schubert 97*2b15cb3dSCy Schubert #ifdef __cplusplus 98*2b15cb3dSCy Schubert } 99*2b15cb3dSCy Schubert #endif 100*2b15cb3dSCy Schubert 101*2b15cb3dSCy Schubert #endif /* EVENT_INTERNAL_H_INCLUDED_ */ 102