3b52a8950f
boost::this_thread::sleep_for is allowed to sleep longer than the requested sleep time. This seems to happen especially on virtualized systems, such as CircleCI.
83 lines
2.0 KiB
C++
83 lines
2.0 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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;
|
|
|
|
// void 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();
|
|
m.lock();
|
|
t1 = Clock::now();
|
|
m.unlock();
|
|
#else
|
|
//time_point t0 = Clock::now();
|
|
m.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();
|
|
}
|
|
|