| 1 | // Copyright (C) 2013 Vicente Botet |
|---|---|
| 2 | // |
| 3 | // Distributed under the Boost Software License, Version 1.0. (See accompanying |
| 4 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| 5 | |
| 6 | // A |
| 7 | |
| 8 | //#include <boost/log/trivial.hpp> |
| 9 | #include <boost/chrono.hpp> |
| 10 | #include <boost/thread.hpp> |
| 11 | #include <boost/thread/condition_variable.hpp> |
| 12 | |
| 13 | //#if !defined(BOOST_NO_CXX11_ALIGNAS) |
| 14 | //#error |
| 15 | //# define BOOST_ALIGNMENT2(x) alignas(x) |
| 16 | //#elif defined(_MSC_VER) |
| 17 | //#error |
| 18 | //# define BOOST_ALIGNMENT2(x) __declspec(align(x)) |
| 19 | //#elif defined(__GNUC__) |
| 20 | //#error |
| 21 | //# define BOOST_ALIGNMENT(x) __attribute__ ((__aligned__(x))) |
| 22 | //#else |
| 23 | //#error |
| 24 | //# define BOOST_NO_ALIGNMENT2 |
| 25 | //# define BOOST_ALIGNMENT2(x) |
| 26 | //#endif |
| 27 | |
| 28 | typedef boost::chrono::high_resolution_clock Clock; |
| 29 | typedef Clock::time_point TimePoint; |
| 30 | |
| 31 | inline TimePoint real_time_now() |
| 32 | { |
| 33 | return Clock::now(); |
| 34 | } |
| 35 | |
| 36 | int main() |
| 37 | { |
| 38 | using namespace boost::chrono; |
| 39 | |
| 40 | boost::condition_variable m_task_spawn_condition; |
| 41 | |
| 42 | boost::mutex main_thread_mutex; |
| 43 | boost::unique_lock < boost::mutex > main_thread_lock(main_thread_mutex); |
| 44 | |
| 45 | //BOOST_LOG_TRIVIAL(info) << "[TaskScheduler::run_and_wait] Scheduling loop - BEGIN"; |
| 46 | |
| 47 | //for (;;) |
| 48 | { |
| 49 | static const milliseconds TIME_BACK = milliseconds(1); |
| 50 | m_task_spawn_condition.wait_until( |
| 51 | lock&: main_thread_lock, |
| 52 | t: real_time_now() - TIME_BACK); // wait forever |
| 53 | m_task_spawn_condition.wait_for( lock&: main_thread_lock, d: - TIME_BACK ); // same problem |
| 54 | //BOOST_LOG_TRIVIAL(trace) << "TICK"; |
| 55 | } |
| 56 | |
| 57 | } |
| 58 |