| //===----------------------------------------------------------------------===// |
| // |
| // 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. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // UNSUPPORTED: libcpp-has-no-threads |
| // REQUIRES: libcpp-has-thread-api-pthread |
| |
| // notify_all_at_thread_exit(...) requires move semantics to transfer the |
| // unique_lock. |
| // UNSUPPORTED: c++98, c++03 |
| |
| // <condition_variable> |
| |
| // void |
| // notify_all_at_thread_exit(condition_variable& cond, unique_lock<mutex> lk); |
| |
| // Test that this function works with threads that were not created by |
| // std::thread. See: https://bugs.llvm.org/show_bug.cgi?id=30202 |
| |
| |
| #include <condition_variable> |
| #include <mutex> |
| #include <thread> |
| #include <chrono> |
| #include <cassert> |
| #include <pthread.h> |
| |
| std::condition_variable cv; |
| std::mutex mut; |
| bool exited = false; |
| |
| typedef std::chrono::milliseconds ms; |
| typedef std::chrono::high_resolution_clock Clock; |
| |
| void* func(void*) |
| { |
| std::unique_lock<std::mutex> lk(mut); |
| std::notify_all_at_thread_exit(cv, std::move(lk)); |
| std::this_thread::sleep_for(ms(300)); |
| exited = true; |
| return nullptr; |
| } |
| |
| int main() |
| { |
| { |
| std::unique_lock<std::mutex> lk(mut); |
| pthread_t id; |
| int res = pthread_create(&id, 0, &func, nullptr); |
| assert(res == 0); |
| Clock::time_point t0 = Clock::now(); |
| assert(exited == false); |
| cv.wait(lk); |
| Clock::time_point t1 = Clock::now(); |
| assert(exited); |
| assert(t1-t0 > ms(250)); |
| pthread_join(id, 0); |
| } |
| exited = false; |
| { |
| std::unique_lock<std::mutex> lk(mut); |
| std::thread t(&func, nullptr); |
| Clock::time_point t0 = Clock::now(); |
| assert(exited == false); |
| cv.wait(lk); |
| Clock::time_point t1 = Clock::now(); |
| assert(exited); |
| assert(t1-t0 > ms(250)); |
| t.join(); |
| } |
| } |