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-rw-r--r--ingen/Clock.hpp63
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-/*
- This file is part of Ingen.
- Copyright 2016-2017 David Robillard <http://drobilla.net/>
-
- Ingen is free software: you can redistribute it and/or modify it under the
- terms of the GNU Affero General Public License as published by the Free
- Software Foundation, either version 3 of the License, or any later version.
-
- Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
- A PARTICULAR PURPOSE. See the GNU Affero General Public License for details.
-
- You should have received a copy of the GNU Affero General Public License
- along with Ingen. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#ifndef INGEN_ENGINE_CLOCK_HPP
-#define INGEN_ENGINE_CLOCK_HPP
-
-#include <cstdint>
-
-#ifdef __MACH__
-# include <mach/mach.h>
-# include <mach/mach_time.h>
-#else
-# include <time.h>
-# include <sys/time.h>
-#endif
-
-namespace Ingen {
-
-class Clock {
-public:
-#ifdef __MACH__
-
- Clock() { mach_timebase_info(&_timebase); }
-
- inline uint64_t now_microseconds() const {
- const uint64_t now = mach_absolute_time();
- return now * _timebase.numer / _timebase.denom / 1e3;
- }
-
-private:
- mach_timebase_info_data_t _timebase;
-
-#else
-
- inline uint64_t now_microseconds() const {
- struct timespec time;
-# if defined(CLOCK_MONOTONIC_RAW)
- clock_gettime(CLOCK_MONOTONIC_RAW, &time);
-# else
- clock_gettime(CLOCK_MONOTONIC, &time);
-# endif
- return (uint64_t)time.tv_sec * 1e6 + (uint64_t)time.tv_nsec / 1e3;
- }
-
-#endif
-};
-
-} // namespace Ingen
-
-#endif // INGEN_ENGINE_CLOCK_HPP