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-/*
- Copyright (c) 2007-2013 Contributors as noted in the AUTHORS file
-
- This file is part of 0MQ.
-
- 0MQ is free software; you can redistribute it and/or modify it under
- the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- 0MQ 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 Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#ifndef __ZMQ_CLOCK_HPP_INCLUDED__
-#define __ZMQ_CLOCK_HPP_INCLUDED__
-
-#include "stdint.hpp"
-
-namespace zmq
-{
-
- class clock_t
- {
- public:
-
- clock_t ();
- ~clock_t ();
-
- // CPU's timestamp counter. Returns 0 if it's not available.
- static uint64_t rdtsc ();
-
- // High precision timestamp.
- static uint64_t now_us ();
-
- // Low precision timestamp. In tight loops generating it can be
- // 10 to 100 times faster than the high precision timestamp.
- uint64_t now_ms ();
-
- private:
-
- // TSC timestamp of when last time measurement was made.
- uint64_t last_tsc;
-
- // Physical time corresponding to the TSC above (in milliseconds).
- uint64_t last_time;
-
- clock_t (const clock_t&);
- const clock_t &operator = (const clock_t&);
- };
-
-}
-
-#endif