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_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 <iostream> 25 #include "../../../timming.hpp" 26 27 boost::recursive_mutex m; 28 29 #if defined BOOST_THREAD_USES_CHRONO 30 typedef boost::chrono::high_resolution_clock Clock; 31 typedef Clock::time_point time_point; 32 typedef Clock::duration duration; 33 typedef boost::chrono::milliseconds ms; 34 typedef boost::chrono::nanoseconds ns; 35 time_point t0; 36 time_point t1; 37 #else 38 #endif 39 40 const ms max_diff(BOOST_THREAD_TEST_TIME_MS); 41 f()42void f() 43 { 44 #if defined BOOST_THREAD_USES_CHRONO 45 t0 = Clock::now(); 46 // BOOST_TEST(!m.try_lock()); 47 // BOOST_TEST(!m.try_lock()); 48 // BOOST_TEST(!m.try_lock()); 49 while (!m.try_lock()) 50 ; 51 t1 = Clock::now(); 52 BOOST_TEST(m.try_lock()); 53 m.unlock(); 54 m.unlock(); 55 #else 56 //time_point t0 = Clock::now(); 57 //BOOST_TEST(!m.try_lock()); 58 //BOOST_TEST(!m.try_lock()); 59 //BOOST_TEST(!m.try_lock()); 60 while (!m.try_lock()) 61 ; 62 //time_point t1 = Clock::now(); 63 BOOST_TEST(m.try_lock()); 64 m.unlock(); 65 m.unlock(); 66 //ns d = t1 - t0 - ms(250); 67 //BOOST_TEST(d < max_diff); 68 #endif 69 } 70 main()71int main() 72 { 73 m.lock(); 74 boost::thread t(f); 75 #if defined BOOST_THREAD_USES_CHRONO 76 time_point t2 = Clock::now(); 77 boost::this_thread::sleep_for(ms(250)); 78 time_point t3 = Clock::now(); 79 #else 80 #endif 81 m.unlock(); 82 t.join(); 83 84 #if defined BOOST_THREAD_USES_CHRONO 85 ns sleep_time = t3 - t2; 86 ns d_ns = t1 - t0 - sleep_time; 87 ms d_ms = boost::chrono::duration_cast<boost::chrono::milliseconds>(d_ns); 88 // BOOST_TEST_GE(d_ms.count(), 0); 89 BOOST_THREAD_TEST_IT(d_ms, max_diff); 90 BOOST_THREAD_TEST_IT(d_ns, ns(max_diff)); 91 #endif 92 93 return boost::report_errors(); 94 } 95 96 97