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aebe9d585c
This removes dependencies on Boost.Thread and Boost.Chrono, as well as their dependencies and potentially allows to test more compilers. In particular, this removes the dependency on Boost.Lexical cast, which no longer compiles with gcc 4.6 and 4.7.
60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
// Copyright (c) 2020 Andrey Semashev
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//
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// Distributed under the Boost Software License, Version 1.0.
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_ATOMIC_TEST_TEST_CLOCK_HPP_INCLUDED_
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#define BOOST_ATOMIC_TEST_TEST_CLOCK_HPP_INCLUDED_
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#include <boost/config.hpp>
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#if defined(BOOST_WINDOWS)
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#include <boost/winapi/config.hpp>
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#include <boost/winapi/basic_types.hpp>
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#include <boost/winapi/time.hpp>
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#include <ratio>
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#endif
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#include <chrono>
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namespace chrono = std::chrono;
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#if defined(BOOST_LIBSTDCXX_VERSION) && BOOST_LIBSTDCXX_VERSION < 40700
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typedef chrono::monotonic_clock steady_clock;
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#else
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typedef chrono::steady_clock steady_clock;
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#endif
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#if defined(BOOST_WINDOWS)
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// On Windows high precision clocks tend to cause spurious test failures because threads wake up earlier than expected.
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// Use a lower precision steady clock for tests.
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struct test_clock
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{
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#if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
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typedef boost::winapi::ULONGLONG_ rep;
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#else
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typedef boost::winapi::DWORD_ rep;
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#endif
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typedef std::milli period;
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typedef chrono::duration< rep, period > duration;
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typedef chrono::time_point< test_clock, duration > time_point;
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static BOOST_CONSTEXPR_OR_CONST bool is_steady = true;
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static time_point now() BOOST_NOEXCEPT
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{
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#if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
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rep ticks = boost::winapi::GetTickCount64();
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#else
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rep ticks = boost::winapi::GetTickCount();
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#endif
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return time_point(duration(ticks));
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}
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};
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#else
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typedef steady_clock test_clock;
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#endif
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#endif // BOOST_ATOMIC_TEST_TEST_CLOCK_HPP_INCLUDED_
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