a55632a069
After recent changes to the Docker image, all hell broke loose and the CI started failing. This patch marks a few tests as unsupported until we can figure out what the issues are and fix them. In the future, it would be ideal if the nodes could pick up the Dockerfile present in the revision being tested, which would allow us to test changes to the Dockerfile in the CI, like we do for all other code changes. Differential Revision: https://reviews.llvm.org/D112737
122 lines
2.8 KiB
C++
122 lines
2.8 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// UNSUPPORTED: libcpp-has-no-threads
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// ALLOW_RETRIES: 2
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// TODO(ldionne): This test fails on Ubuntu Focal on our CI nodes (and only there), in 32 bit mode.
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// UNSUPPORTED: linux && 32bits-on-64bits
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// <condition_variable>
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// class condition_variable;
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// template <class Clock, class Duration, class Predicate>
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// bool
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// wait_until(unique_lock<mutex>& lock,
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// const chrono::time_point<Clock, Duration>& abs_time,
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// Predicate pred);
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#include <condition_variable>
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#include <mutex>
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#include <thread>
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#include <chrono>
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#include <cassert>
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#include "make_test_thread.h"
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#include "test_macros.h"
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struct Clock
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{
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typedef std::chrono::milliseconds duration;
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typedef duration::rep rep;
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typedef duration::period period;
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typedef std::chrono::time_point<Clock> time_point;
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static const bool is_steady = true;
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static time_point now()
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{
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using namespace std::chrono;
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return time_point(duration_cast<duration>(
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steady_clock::now().time_since_epoch()
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));
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}
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};
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class Pred
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{
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int& i_;
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public:
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explicit Pred(int& i) : i_(i) {}
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bool operator()() {return i_ != 0;}
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};
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std::condition_variable cv;
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std::mutex mut;
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int test1 = 0;
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int test2 = 0;
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int runs = 0;
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void f()
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{
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std::unique_lock<std::mutex> lk(mut);
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assert(test2 == 0);
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test1 = 1;
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cv.notify_one();
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Clock::time_point t0 = Clock::now();
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Clock::time_point t = t0 + Clock::duration(250);
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bool r = cv.wait_until(lk, t, Pred(test2));
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Clock::time_point t1 = Clock::now();
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if (runs == 0)
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{
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assert(t1 - t0 < Clock::duration(250));
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assert(test2 != 0);
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assert(r);
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}
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else
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{
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assert(t1 - t0 - Clock::duration(250) < Clock::duration(50));
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assert(test2 == 0);
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assert(!r);
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}
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++runs;
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}
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int main(int, char**)
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{
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{
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std::unique_lock<std::mutex> lk(mut);
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std::thread t = support::make_test_thread(f);
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assert(test1 == 0);
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while (test1 == 0)
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cv.wait(lk);
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assert(test1 != 0);
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test2 = 1;
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lk.unlock();
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cv.notify_one();
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t.join();
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}
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test1 = 0;
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test2 = 0;
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{
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std::unique_lock<std::mutex> lk(mut);
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std::thread t = support::make_test_thread(f);
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assert(test1 == 0);
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while (test1 == 0)
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cv.wait(lk);
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assert(test1 != 0);
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lk.unlock();
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t.join();
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}
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return 0;
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}
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