| //===----------------------------------------------------------------------===// |
| // |
| // 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/condition_variable> |
| |
| // class condition_variable; |
| |
| // condition_variable(const condition_variable&) = delete; |
| |
| #include <boost/thread/condition_variable.hpp> |
| #include <boost/thread/mutex.hpp> |
| #include <boost/thread/thread.hpp> |
| #include <boost/detail/lightweight_test.hpp> |
| |
| #if defined BOOST_THREAD_USES_CHRONO |
| |
| struct Clock |
| { |
| typedef boost::chrono::milliseconds duration; |
| typedef duration::rep rep; |
| typedef duration::period period; |
| typedef boost::chrono::time_point<Clock> time_point; |
| static const bool is_steady = true; |
| |
| static time_point now() |
| { |
| using namespace boost::chrono; |
| return time_point(duration_cast<duration> (steady_clock::now().time_since_epoch())); |
| } |
| }; |
| |
| boost::condition_variable cv; |
| boost::mutex mut; |
| |
| int test1 = 0; |
| int test2 = 0; |
| |
| int runs = 0; |
| |
| void f() |
| { |
| boost::unique_lock < boost::mutex > lk(mut); |
| BOOST_TEST(test2 == 0); |
| test1 = 1; |
| cv.notify_one(); |
| Clock::time_point t0 = Clock::now(); |
| Clock::time_point t = t0 + Clock::duration(250); |
| int count=0; |
| while (test2 == 0 && cv.wait_until(lk, t) == boost::cv_status::no_timeout) |
| count++; |
| Clock::time_point t1 = Clock::now(); |
| if (runs == 0) |
| { |
| BOOST_TEST(t1 - t0 < Clock::duration(250)); |
| BOOST_TEST(test2 != 0); |
| } |
| else |
| { |
| // This test is spurious as it depends on the time the thread system switches the threads |
| BOOST_TEST(t1 - t0 - Clock::duration(250) < Clock::duration(count*250+5+1000)); |
| BOOST_TEST(test2 == 0); |
| } |
| ++runs; |
| } |
| |
| int main() |
| { |
| { |
| boost::unique_lock < boost::mutex > lk(mut); |
| boost::thread t(f); |
| BOOST_TEST(test1 == 0); |
| while (test1 == 0) |
| cv.wait(lk); |
| BOOST_TEST(test1 != 0); |
| test2 = 1; |
| lk.unlock(); |
| cv.notify_one(); |
| t.join(); |
| } |
| test1 = 0; |
| test2 = 0; |
| { |
| boost::unique_lock < boost::mutex > lk(mut); |
| boost::thread t(f); |
| BOOST_TEST(test1 == 0); |
| while (test1 == 0) |
| cv.wait(lk); |
| BOOST_TEST(test1 != 0); |
| lk.unlock(); |
| t.join(); |
| } |
| |
| return boost::report_errors(); |
| } |
| |
| #else |
| #error "Test not applicable: BOOST_THREAD_USES_CHRONO not defined for this platform as not supported" |
| #endif |