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/mutex.hpp> 16 17 // class mutex; 18 19 // void lock(); 20 21 #include <boost/thread/mutex.hpp> 22 #include <boost/thread/thread.hpp> 23 #include <boost/detail/lightweight_test.hpp> 24 #include "../../../timming.hpp" 25 26 boost::mutex m; 27 28 #if defined BOOST_THREAD_USES_CHRONO 29 typedef boost::chrono::high_resolution_clock Clock; 30 typedef Clock::time_point time_point; 31 typedef Clock::duration duration; 32 typedef boost::chrono::milliseconds ms; 33 typedef boost::chrono::nanoseconds ns; 34 time_point t0; 35 time_point t1; 36 #else 37 #endif 38 39 const ms max_diff(BOOST_THREAD_TEST_TIME_MS); 40 f()41void f() 42 { 43 #if defined BOOST_THREAD_USES_CHRONO 44 t0 = Clock::now(); 45 m.lock(); 46 t1 = Clock::now(); 47 m.unlock(); 48 #else 49 //time_point t0 = Clock::now(); 50 m.lock(); 51 //time_point t1 = Clock::now(); 52 m.unlock(); 53 //ns d = t1 - t0 - ms(250); 54 //BOOST_TEST(d < max_diff); 55 #endif 56 } 57 main()58int main() 59 { 60 m.lock(); 61 boost::thread t(f); 62 #if defined BOOST_THREAD_USES_CHRONO 63 time_point t2 = Clock::now(); 64 boost::this_thread::sleep_for(ms(250)); 65 time_point t3 = Clock::now(); 66 #endif 67 m.unlock(); 68 t.join(); 69 70 #if defined BOOST_THREAD_USES_CHRONO 71 ns sleep_time = t3 - t2; 72 ns d_ns = t1 - t0 - sleep_time; 73 ms d_ms = boost::chrono::duration_cast<boost::chrono::milliseconds>(d_ns); 74 // BOOST_TEST_GE(d_ms.count(), 0); 75 BOOST_THREAD_TEST_IT(d_ms, max_diff); 76 BOOST_THREAD_TEST_IT(d_ns, ns(max_diff)); 77 #endif 78 79 return boost::report_errors(); 80 } 81 82 83