99 lines
3.0 KiB
C
99 lines
3.0 KiB
C
/*
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* Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu>
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* Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TIME_INTERNAL_H_INCLUDED_
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#define TIME_INTERNAL_H_INCLUDED_
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#include "event2/event-config.h"
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#include "evconfig-private.h"
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#ifdef EVENT__HAVE_MACH_MACH_TIME_H
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/* For mach_timebase_info */
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#include <mach/mach_time.h>
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#endif
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#include <time.h>
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#include "event2/util.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if defined(EVENT__HAVE_CLOCK_GETTIME) && defined(CLOCK_MONOTONIC)
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#define HAVE_POSIX_MONOTONIC
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#elif defined(EVENT__HAVE_MACH_ABSOLUTE_TIME)
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#define HAVE_MACH_MONOTONIC
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#elif defined(_WIN32)
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#define HAVE_WIN32_MONOTONIC
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#else
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#define HAVE_FALLBACK_MONOTONIC
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#endif
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long evutil_tv_to_msec_(const struct timeval *tv);
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void evutil_usleep_(const struct timeval *tv);
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#ifdef _WIN32
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typedef ULONGLONG (WINAPI *ev_GetTickCount_func)(void);
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#endif
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struct evutil_monotonic_timer {
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#ifdef HAVE_MACH_MONOTONIC
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struct mach_timebase_info mach_timebase_units;
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#endif
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#ifdef HAVE_POSIX_MONOTONIC
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int monotonic_clock;
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#endif
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#ifdef HAVE_WIN32_MONOTONIC
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ev_GetTickCount_func GetTickCount64_fn;
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ev_GetTickCount_func GetTickCount_fn;
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ev_uint64_t last_tick_count;
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ev_uint64_t adjust_tick_count;
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ev_uint64_t first_tick;
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ev_uint64_t first_counter;
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double usec_per_count;
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int use_performance_counter;
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#endif
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struct timeval adjust_monotonic_clock;
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struct timeval last_time;
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};
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int evutil_configure_monotonic_time_(struct evutil_monotonic_timer *mt,
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int flags);
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int evutil_gettime_monotonic_(struct evutil_monotonic_timer *mt, struct timeval *tv);
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#ifdef __cplusplus
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}
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#endif
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#endif /* EVENT_INTERNAL_H_INCLUDED_ */
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