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Diffstat (limited to 'libevent/time-internal.h')
| -rw-r--r-- | libevent/time-internal.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/libevent/time-internal.h b/libevent/time-internal.h new file mode 100644 index 0000000..e79e6a5 --- /dev/null +++ b/libevent/time-internal.h @@ -0,0 +1,101 @@ +/* + * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu> + * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson + * + * 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 TIME_INTERNAL_H_INCLUDED_ +#define TIME_INTERNAL_H_INCLUDED_ + +#include "event2/event-config.h" +#include "evconfig-private.h" + +#ifdef EVENT__HAVE_MACH_MACH_TIME_H +/* For mach_timebase_info */ +#include <mach/mach_time.h> +#endif + +#include <time.h> + +#include "event2/util.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if defined(EVENT__HAVE_CLOCK_GETTIME) && defined(CLOCK_MONOTONIC) +#define HAVE_POSIX_MONOTONIC +#elif defined(EVENT__HAVE_MACH_ABSOLUTE_TIME) +#define HAVE_MACH_MONOTONIC +#elif defined(_WIN32) +#define HAVE_WIN32_MONOTONIC +#else +#define HAVE_FALLBACK_MONOTONIC +#endif + +long evutil_tv_to_msec_(const struct timeval *tv); +EVENT2_EXPORT_SYMBOL +void evutil_usleep_(const struct timeval *tv); + +#ifdef _WIN32 +typedef ULONGLONG (WINAPI *ev_GetTickCount_func)(void); +#endif + +struct evutil_monotonic_timer { + +#ifdef HAVE_MACH_MONOTONIC + struct mach_timebase_info mach_timebase_units; +#endif + +#ifdef HAVE_POSIX_MONOTONIC + int monotonic_clock; +#endif + +#ifdef HAVE_WIN32_MONOTONIC + ev_GetTickCount_func GetTickCount64_fn; + ev_GetTickCount_func GetTickCount_fn; + ev_uint64_t last_tick_count; + ev_uint64_t adjust_tick_count; + + ev_uint64_t first_tick; + ev_uint64_t first_counter; + double usec_per_count; + int use_performance_counter; +#endif + + struct timeval adjust_monotonic_clock; + struct timeval last_time; +}; + +EVENT2_EXPORT_SYMBOL +int evutil_configure_monotonic_time_(struct evutil_monotonic_timer *mt, + int flags); +EVENT2_EXPORT_SYMBOL +int evutil_gettime_monotonic_(struct evutil_monotonic_timer *mt, struct timeval *tv); + + +#ifdef __cplusplus +} +#endif + +#endif /* EVENT_INTERNAL_H_INCLUDED_ */ |