819fb01933
The slow_clock type was introduced to the testsuite in 2018 in the testsuite/30_threads/condition_variable/members/2.cc test, so the new header should have that date. * testsuite/util/slow_clock.h: Fix copyright date. From-SVN: r278926
39 lines
1.3 KiB
C++
39 lines
1.3 KiB
C++
// -*- C++ -*-
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// Copyright (C) 2018-2019 Free Software Foundation, Inc.
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 3, or (at
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// your option) any later version.
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// A clock that ticks at a third of the speed of system_clock that can be used
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// to ensure that functions with timeouts don't erroneously return early.
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#include <chrono>
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struct slow_clock
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{
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using rep = std::chrono::system_clock::rep;
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using period = std::chrono::system_clock::period;
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using duration = std::chrono::system_clock::duration;
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using time_point = std::chrono::time_point<slow_clock, duration>;
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static constexpr bool is_steady = false;
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static time_point now()
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{
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auto real = std::chrono::system_clock::now();
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return time_point{real.time_since_epoch() / 3};
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}
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};
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