101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
/*
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Copyright (c) 2013, Arvid Norberg
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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* Neither the name of the author nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "test.hpp"
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#include "libtorrent/time.hpp"
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#include <functional>
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#include <thread>
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#include <mutex>
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#include <condition_variable>
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using namespace lt;
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void check_timer_loop(std::mutex& m, time_point& last, std::condition_variable& cv)
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{
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std::unique_lock<std::mutex> l(m);
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cv.wait(l);
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l.unlock();
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for (int i = 0; i < 10000; ++i)
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{
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std::lock_guard<std::mutex> l(m);
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time_point now = clock_type::now();
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TEST_CHECK(now >= last);
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last = now;
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}
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}
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TORRENT_TEST(time)
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{
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// make sure the time classes have correct semantics
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TEST_EQUAL(total_milliseconds(milliseconds(100)), 100);
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TEST_EQUAL(total_milliseconds(milliseconds(1)), 1);
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TEST_EQUAL(total_milliseconds(seconds(1)), 1000);
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TEST_EQUAL(total_seconds(minutes(1)), 60);
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TEST_EQUAL(total_seconds(hours(1)), 3600);
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// make sure it doesn't wrap at 32 bit arithmetic
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TEST_EQUAL(total_seconds(seconds(281474976)), 281474976);
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TEST_EQUAL(total_milliseconds(milliseconds(281474976)), 281474976);
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// make sure the timer is monotonic
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time_point now = clock_type::now();
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time_point last = now;
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for (int i = 0; i < 1000; ++i)
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{
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now = clock_type::now();
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TEST_CHECK(now >= last);
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last = now;
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}
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std::mutex m;
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std::condition_variable cv;
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std::thread t1(&check_timer_loop, std::ref(m), std::ref(last), std::ref(cv));
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std::thread t2(&check_timer_loop, std::ref(m), std::ref(last), std::ref(cv));
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std::thread t3(&check_timer_loop, std::ref(m), std::ref(last), std::ref(cv));
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std::thread t4(&check_timer_loop, std::ref(m), std::ref(last), std::ref(cv));
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std::this_thread::sleep_for(lt::milliseconds(100));
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cv.notify_all();
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t1.join();
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t2.join();
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t3.join();
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t4.join();
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}
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