1*c43e99fdSEd Maste /* 2*c43e99fdSEd Maste * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu> 3*c43e99fdSEd Maste * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson 4*c43e99fdSEd Maste * 5*c43e99fdSEd Maste * Redistribution and use in source and binary forms, with or without 6*c43e99fdSEd Maste * modification, are permitted provided that the following conditions 7*c43e99fdSEd Maste * are met: 8*c43e99fdSEd Maste * 1. Redistributions of source code must retain the above copyright 9*c43e99fdSEd Maste * notice, this list of conditions and the following disclaimer. 10*c43e99fdSEd Maste * 2. Redistributions in binary form must reproduce the above copyright 11*c43e99fdSEd Maste * notice, this list of conditions and the following disclaimer in the 12*c43e99fdSEd Maste * documentation and/or other materials provided with the distribution. 13*c43e99fdSEd Maste * 3. The name of the author may not be used to endorse or promote products 14*c43e99fdSEd Maste * derived from this software without specific prior written permission. 15*c43e99fdSEd Maste * 16*c43e99fdSEd Maste * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17*c43e99fdSEd Maste * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18*c43e99fdSEd Maste * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19*c43e99fdSEd Maste * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20*c43e99fdSEd Maste * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21*c43e99fdSEd Maste * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22*c43e99fdSEd Maste * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23*c43e99fdSEd Maste * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24*c43e99fdSEd Maste * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25*c43e99fdSEd Maste * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26*c43e99fdSEd Maste */ 27*c43e99fdSEd Maste #ifndef TIME_INTERNAL_H_INCLUDED_ 28*c43e99fdSEd Maste #define TIME_INTERNAL_H_INCLUDED_ 29*c43e99fdSEd Maste 30*c43e99fdSEd Maste #include "event2/event-config.h" 31*c43e99fdSEd Maste #include "evconfig-private.h" 32*c43e99fdSEd Maste 33*c43e99fdSEd Maste #ifdef EVENT__HAVE_MACH_MACH_TIME_H 34*c43e99fdSEd Maste /* For mach_timebase_info */ 35*c43e99fdSEd Maste #include <mach/mach_time.h> 36*c43e99fdSEd Maste #endif 37*c43e99fdSEd Maste 38*c43e99fdSEd Maste #include <time.h> 39*c43e99fdSEd Maste 40*c43e99fdSEd Maste #include "event2/util.h" 41*c43e99fdSEd Maste 42*c43e99fdSEd Maste #ifdef __cplusplus 43*c43e99fdSEd Maste extern "C" { 44*c43e99fdSEd Maste #endif 45*c43e99fdSEd Maste 46*c43e99fdSEd Maste #if defined(EVENT__HAVE_CLOCK_GETTIME) && defined(CLOCK_MONOTONIC) 47*c43e99fdSEd Maste #define HAVE_POSIX_MONOTONIC 48*c43e99fdSEd Maste #elif defined(EVENT__HAVE_MACH_ABSOLUTE_TIME) 49*c43e99fdSEd Maste #define HAVE_MACH_MONOTONIC 50*c43e99fdSEd Maste #elif defined(_WIN32) 51*c43e99fdSEd Maste #define HAVE_WIN32_MONOTONIC 52*c43e99fdSEd Maste #else 53*c43e99fdSEd Maste #define HAVE_FALLBACK_MONOTONIC 54*c43e99fdSEd Maste #endif 55*c43e99fdSEd Maste 56*c43e99fdSEd Maste long evutil_tv_to_msec_(const struct timeval *tv); 57*c43e99fdSEd Maste void evutil_usleep_(const struct timeval *tv); 58*c43e99fdSEd Maste 59*c43e99fdSEd Maste #ifdef _WIN32 60*c43e99fdSEd Maste typedef ULONGLONG (WINAPI *ev_GetTickCount_func)(void); 61*c43e99fdSEd Maste #endif 62*c43e99fdSEd Maste 63*c43e99fdSEd Maste struct evutil_monotonic_timer { 64*c43e99fdSEd Maste 65*c43e99fdSEd Maste #ifdef HAVE_MACH_MONOTONIC 66*c43e99fdSEd Maste struct mach_timebase_info mach_timebase_units; 67*c43e99fdSEd Maste #endif 68*c43e99fdSEd Maste 69*c43e99fdSEd Maste #ifdef HAVE_POSIX_MONOTONIC 70*c43e99fdSEd Maste int monotonic_clock; 71*c43e99fdSEd Maste #endif 72*c43e99fdSEd Maste 73*c43e99fdSEd Maste #ifdef HAVE_WIN32_MONOTONIC 74*c43e99fdSEd Maste ev_GetTickCount_func GetTickCount64_fn; 75*c43e99fdSEd Maste ev_GetTickCount_func GetTickCount_fn; 76*c43e99fdSEd Maste ev_uint64_t last_tick_count; 77*c43e99fdSEd Maste ev_uint64_t adjust_tick_count; 78*c43e99fdSEd Maste 79*c43e99fdSEd Maste ev_uint64_t first_tick; 80*c43e99fdSEd Maste ev_uint64_t first_counter; 81*c43e99fdSEd Maste double usec_per_count; 82*c43e99fdSEd Maste int use_performance_counter; 83*c43e99fdSEd Maste #endif 84*c43e99fdSEd Maste 85*c43e99fdSEd Maste struct timeval adjust_monotonic_clock; 86*c43e99fdSEd Maste struct timeval last_time; 87*c43e99fdSEd Maste }; 88*c43e99fdSEd Maste 89*c43e99fdSEd Maste int evutil_configure_monotonic_time_(struct evutil_monotonic_timer *mt, 90*c43e99fdSEd Maste int flags); 91*c43e99fdSEd Maste int evutil_gettime_monotonic_(struct evutil_monotonic_timer *mt, struct timeval *tv); 92*c43e99fdSEd Maste 93*c43e99fdSEd Maste 94*c43e99fdSEd Maste #ifdef __cplusplus 95*c43e99fdSEd Maste } 96*c43e99fdSEd Maste #endif 97*c43e99fdSEd Maste 98*c43e99fdSEd Maste #endif /* EVENT_INTERNAL_H_INCLUDED_ */ 99