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 // Copyright (C) 2011 Vicente J. Botet Escriba 10 // 11 // Distributed under the Boost Software License, Version 1.0. (See accompanying 12 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 13 14 // <boost/thread/thread.hpp> 15 16 // thread::id this_thread::get_id(); 17 18 #include <boost/thread/thread_only.hpp> 19 #include <cstdlib> 20 #include <algorithm> 21 22 #include <boost/detail/lightweight_test.hpp> 23 24 #if defined BOOST_THREAD_USES_CHRONO 25 main()26int main() 27 { 28 { 29 typedef boost::chrono::steady_clock Clock; 30 typedef Clock::time_point time_point; 31 //typedef Clock::duration duration; 32 boost::chrono::milliseconds ms(500); 33 time_point t0 = Clock::now(); 34 boost::this_thread::sleep_until(t0 + ms); 35 time_point t1 = Clock::now(); 36 boost::chrono::nanoseconds ns = (t1 - t0) - ms; 37 boost::chrono::nanoseconds err = ms / 100; 38 // The time slept is within 1% of 500ms 39 // This test is spurious as it depends on the time the thread system switches the threads 40 BOOST_TEST((std::max)(ns.count(), -ns.count()) < (err+boost::chrono::milliseconds(1000)).count()); 41 //BOOST_TEST(std::abs(static_cast<long>(ns.count())) < (err+boost::chrono::milliseconds(1000)).count()); 42 } 43 { 44 typedef boost::chrono::system_clock Clock; 45 typedef Clock::time_point time_point; 46 //typedef Clock::duration duration; 47 boost::chrono::milliseconds ms(500); 48 time_point t0 = Clock::now(); 49 boost::this_thread::sleep_until(t0 + ms); 50 time_point t1 = Clock::now(); 51 boost::chrono::nanoseconds ns = (t1 - t0) - ms; 52 boost::chrono::nanoseconds err = ms / 100; 53 // The time slept is within 1% of 500ms 54 // This test is spurious as it depends on the time the thread system switches the threads 55 BOOST_TEST((std::max)(ns.count(), -ns.count()) < (err+boost::chrono::milliseconds(1000)).count()); 56 //BOOST_TEST(std::abs(static_cast<long>(ns.count())) < (err+boost::chrono::milliseconds(1000)).count()); 57 } 58 { 59 typedef boost::chrono::steady_clock Clock; 60 typedef Clock::time_point time_point; 61 //typedef Clock::duration duration; 62 boost::chrono::milliseconds ms(500); 63 time_point t0 = Clock::now(); 64 boost::this_thread::no_interruption_point::sleep_until(t0 + ms); 65 time_point t1 = Clock::now(); 66 boost::chrono::nanoseconds ns = (t1 - t0) - ms; 67 boost::chrono::nanoseconds err = ms / 100; 68 // The time slept is within 1% of 500ms 69 // This test is spurious as it depends on the time the thread system switches the threads 70 BOOST_TEST((std::max)(ns.count(), -ns.count()) < (err+boost::chrono::milliseconds(1000)).count()); 71 //BOOST_TEST(std::abs(static_cast<long>(ns.count())) < (err+boost::chrono::milliseconds(1000)).count()); 72 } 73 { 74 typedef boost::chrono::system_clock Clock; 75 typedef Clock::time_point time_point; 76 //typedef Clock::duration duration; 77 boost::chrono::milliseconds ms(500); 78 time_point t0 = Clock::now(); 79 boost::this_thread::no_interruption_point::sleep_until(t0 + ms); 80 time_point t1 = Clock::now(); 81 boost::chrono::nanoseconds ns = (t1 - t0) - ms; 82 boost::chrono::nanoseconds err = ms / 100; 83 // The time slept is within 1% of 500ms 84 // This test is spurious as it depends on the time the thread system switches the threads 85 BOOST_TEST((std::max)(ns.count(), -ns.count()) < (err+boost::chrono::milliseconds(1000)).count()); 86 //BOOST_TEST(std::abs(static_cast<long>(ns.count())) < (err+boost::chrono::milliseconds(1000)).count()); 87 } 88 return boost::report_errors(); 89 90 } 91 92 #else 93 #error "Test not applicable: BOOST_THREAD_USES_CHRONO not defined for this platform as not supported" 94 #endif 95 96