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Diffstat (limited to 'external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/clock.hpp')
-rw-r--r-- | external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/clock.hpp | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/clock.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/clock.hpp new file mode 100644 index 00000000..f56f618e --- /dev/null +++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/clock.hpp @@ -0,0 +1,69 @@ +/* + Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file + + This file is part of libzmq, the ZeroMQ core engine in C++. + + libzmq is free software; you can redistribute it and/or modify it under + the terms of the GNU Lesser General Public License (LGPL) as published + by the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + As a special exception, the Contributors give you permission to link + this library with independent modules to produce an executable, + regardless of the license terms of these independent modules, and to + copy and distribute the resulting executable under terms of your choice, + provided that you also meet, for each linked independent module, the + terms and conditions of the license of that module. An independent + module is a module which is not derived from or based on this library. + If you modify this library, you must extend this exception to your + version of the library. + + libzmq 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 |