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- //===----------------------------------------------------------------------===//
- //
- // The LLVM Compiler Infrastructure
- //
- // This file is dual licensed under the MIT and the University of Illinois Open
- // Source Licenses. See LICENSE.TXT for details.
- //
- //===----------------------------------------------------------------------===//
- // Copyright (C) 2011 Vicente J. Botet Escriba
- //
- // Distributed under the Boost Software License, Version 1.0. (See accompanying
- // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- // <boost/thread/thread.hpp>
- // thread::id this_thread::get_id();
- #include <boost/thread/thread_only.hpp>
- #include <cstdlib>
- #include <algorithm>
- #include <boost/detail/lightweight_test.hpp>
- #if defined BOOST_THREAD_USES_CHRONO
- int main()
- {
- {
- typedef boost::chrono::system_clock Clock;
- typedef Clock::time_point time_point;
- boost::chrono::milliseconds ms(500);
- time_point t0 = Clock::now();
- boost::this_thread::sleep_for(ms);
- time_point t1 = Clock::now();
- boost::chrono::nanoseconds ns = (t1 - t0) - ms;
- boost::chrono::nanoseconds err = ms / 100;
- // The time slept is within 1% of 500ms
- // This test is spurious as it depends on the time the thread system switches the threads
- BOOST_TEST((std::max)(ns.count(), -ns.count()) < (err+boost::chrono::milliseconds(1000)).count());
- //BOOST_TEST(std::abs(static_cast<long>(ns.count())) < (err+boost::chrono::milliseconds(1000)).count());
- }
- {
- typedef boost::chrono::system_clock Clock;
- typedef Clock::time_point time_point;
- boost::chrono::milliseconds ms(500);
- time_point t0 = Clock::now();
- boost::this_thread::no_interruption_point::sleep_for(ms);
- time_point t1 = Clock::now();
- boost::chrono::nanoseconds ns = (t1 - t0) - ms;
- boost::chrono::nanoseconds err = ms / 100;
- // The time slept is within 1% of 500ms
- // This test is spurious as it depends on the time the thread system switches the threads
- BOOST_TEST((std::max)(ns.count(), -ns.count()) < (err+boost::chrono::milliseconds(1000)).count());
- //BOOST_TEST(std::abs(static_cast<long>(ns.count())) < (err+boost::chrono::milliseconds(1000)).count());
- }
- return boost::report_errors();
- }
- #else
- #error "Test not applicable: BOOST_THREAD_USES_CHRONO not defined for this platform as not supported"
- #endif
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