1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // Copyright (C) 2011 Vicente J. Botet Escriba 11 // 12 // Distributed under the Boost Software License, Version 1.0. (See accompanying 13 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 14 15 // <boost/thread/recursive_mutex> 16 17 // class recursive_timed_mutex; 18 19 // template <class Clock, class Duration> 20 // bool try_lock_until(const chrono::time_point<Clock, Duration>& abs_time); 21 22 #include <boost/thread/recursive_mutex.hpp> 23 #include <boost/thread/thread.hpp> 24 #include <boost/detail/lightweight_test.hpp> 25 #include "../../../timming.hpp" 26 27 #if defined BOOST_THREAD_USES_CHRONO 28 29 boost::recursive_timed_mutex m; 30 31 typedef boost::chrono::high_resolution_clock Clock; 32 typedef Clock::time_point time_point; 33 typedef Clock::duration duration; 34 typedef boost::chrono::milliseconds ms; 35 typedef boost::chrono::nanoseconds ns; 36 time_point t0; 37 time_point t1; 38 39 const ms max_diff(BOOST_THREAD_TEST_TIME_MS); 40 f1()41void f1() 42 { 43 t0 = Clock::now(); 44 BOOST_TEST(m.try_lock_until(Clock::now() + ms(750)) == true); 45 t1 = Clock::now(); 46 m.unlock(); 47 } 48 f2()49void f2() 50 { 51 t0 = Clock::now(); 52 BOOST_TEST(m.try_lock_until(Clock::now() + ms(250)) == false); 53 t1 = Clock::now(); 54 ns d = t1 - t0 - ms(250); 55 BOOST_THREAD_TEST_IT(d, ns(max_diff)); 56 } 57 main()58int main() 59 { 60 { 61 m.lock(); 62 boost::thread t(f1); 63 time_point t2 = Clock::now(); 64 boost::this_thread::sleep_for(ms(250)); 65 time_point t3 = Clock::now(); 66 m.unlock(); 67 t.join(); 68 69 #if defined BOOST_THREAD_USES_CHRONO 70 ns sleep_time = t3 - t2; 71 ns d_ns = t1 - t0 - sleep_time; 72 ms d_ms = boost::chrono::duration_cast<boost::chrono::milliseconds>(d_ns); 73 // BOOST_TEST_GE(d_ms.count(), 0); 74 BOOST_THREAD_TEST_IT(d_ms, max_diff); 75 BOOST_THREAD_TEST_IT(d_ns, ns(max_diff)); 76 #endif 77 } 78 { 79 m.lock(); 80 boost::thread t(f2); 81 boost::this_thread::sleep_for(ms(750)); 82 m.unlock(); 83 t.join(); 84 } 85 86 return boost::report_errors(); 87 } 88 89 #else 90 #error "Test not applicable: BOOST_THREAD_USES_CHRONO not defined for this platform as not supported" 91 #endif 92 93