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.hpp> 16 17 // class recursive_timed_mutex; 18 19 // bool try_lock(); 20 21 #include <boost/thread/recursive_mutex.hpp> 22 #include <boost/thread/thread.hpp> 23 #include <boost/detail/lightweight_test.hpp> 24 #include "../../../timming.hpp" 25 26 boost::recursive_timed_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 BOOST_TEST(!m.try_lock()); 46 BOOST_TEST(!m.try_lock()); 47 BOOST_TEST(!m.try_lock()); 48 while (!m.try_lock()) 49 ; 50 t1 = Clock::now(); 51 BOOST_TEST(m.try_lock()); 52 m.unlock(); 53 m.unlock(); 54 #else 55 //time_point t0 = Clock::now(); 56 //BOOST_TEST(!m.try_lock()); 57 //BOOST_TEST(!m.try_lock()); 58 //BOOST_TEST(!m.try_lock()); 59 while (!m.try_lock()) 60 ; 61 //time_point t1 = Clock::now(); 62 BOOST_TEST(m.try_lock()); 63 m.unlock(); 64 m.unlock(); 65 //ns d = t1 - t0 - ms(250); 66 //BOOST_TEST(d < max_diff); 67 #endif 68 } 69 main()70int main() 71 { 72 m.lock(); 73 boost::thread t(f); 74 #if defined BOOST_THREAD_USES_CHRONO 75 time_point t2 = Clock::now(); 76 boost::this_thread::sleep_for(ms(250)); 77 time_point t3 = Clock::now(); 78 #else 79 #endif 80 m.unlock(); 81 t.join(); 82 83 #if defined BOOST_THREAD_USES_CHRONO 84 ns sleep_time = t3 - t2; 85 ns d_ns = t1 - t0 - sleep_time; 86 ms d_ms = boost::chrono::duration_cast<boost::chrono::milliseconds>(d_ns); 87 // BOOST_TEST_GE(d_ms.count(), 0); 88 BOOST_THREAD_TEST_IT(d_ms, max_diff); 89 BOOST_THREAD_TEST_IT(d_ns, ns(max_diff)); 90 #endif 91 92 return boost::report_errors(); 93 } 94 95 96