| //===----------------------------------------------------------------------===// |
| // |
| // 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) 2012 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/shared_mutex.hpp> |
| |
| // class shared_mutex; |
| |
| // bool try_lock(); |
| |
| #include <boost/thread/shared_mutex.hpp> |
| #include <boost/thread/thread.hpp> |
| #include <boost/detail/lightweight_test.hpp> |
| #include "../../../timming.hpp" |
| |
| boost::shared_mutex m; |
| |
| #if defined BOOST_THREAD_USES_CHRONO |
| typedef boost::chrono::high_resolution_clock Clock; |
| typedef Clock::time_point time_point; |
| typedef Clock::duration duration; |
| typedef boost::chrono::milliseconds ms; |
| typedef boost::chrono::nanoseconds ns; |
| time_point t0; |
| time_point t1; |
| #else |
| #endif |
| |
| const ms max_diff(BOOST_THREAD_TEST_TIME_MS); |
| |
| void f() |
| { |
| #if defined BOOST_THREAD_USES_CHRONO |
| t0 = Clock::now(); |
| BOOST_TEST(!m.try_lock()); |
| BOOST_TEST(!m.try_lock()); |
| BOOST_TEST(!m.try_lock()); |
| while (!m.try_lock()) |
| ; |
| t1 = Clock::now(); |
| m.unlock(); |
| #else |
| //time_point t0 = Clock::now(); |
| //BOOST_TEST(!m.try_lock()); |
| //BOOST_TEST(!m.try_lock()); |
| //BOOST_TEST(!m.try_lock()); |
| while (!m.try_lock()) |
| ; |
| //time_point t1 = Clock::now(); |
| m.unlock(); |
| //ns d = t1 - t0 - ms(250); |
| //BOOST_TEST(d < max_diff); |
| #endif |
| } |
| |
| int main() |
| { |
| m.lock(); |
| boost::thread t(f); |
| #if defined BOOST_THREAD_USES_CHRONO |
| time_point t2 = Clock::now(); |
| boost::this_thread::sleep_for(ms(250)); |
| time_point t3 = Clock::now(); |
| #else |
| #endif |
| m.unlock(); |
| t.join(); |
| |
| #if defined BOOST_THREAD_USES_CHRONO |
| ns sleep_time = t3 - t2; |
| ns d_ns = t1 - t0 - sleep_time; |
| ms d_ms = boost::chrono::duration_cast<boost::chrono::milliseconds>(d_ns); |
| // BOOST_TEST_GE(d_ms.count(), 0); |
| BOOST_THREAD_TEST_IT(d_ms, max_diff); |
| BOOST_THREAD_TEST_IT(d_ns, ns(max_diff)); |
| #endif |
| |
| return boost::report_errors(); |
| } |
| |