1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // UNSUPPORTED: libcpp-has-no-threads 11 12 // notify_all_at_thread_exit(...) requires move semantics to transfer the 13 // unique_lock. 14 // UNSUPPORTED: c++98, c++03 15 16 // <condition_variable> 17 18 // void 19 // notify_all_at_thread_exit(condition_variable& cond, unique_lock<mutex> lk); 20 21 #include <condition_variable> 22 #include <mutex> 23 #include <thread> 24 #include <chrono> 25 #include <cassert> 26 27 std::condition_variable cv; 28 std::mutex mut; 29 30 typedef std::chrono::milliseconds ms; 31 typedef std::chrono::high_resolution_clock Clock; 32 33 void func() 34 { 35 std::unique_lock<std::mutex> lk(mut); 36 std::notify_all_at_thread_exit(cv, std::move(lk)); 37 std::this_thread::sleep_for(ms(300)); 38 } 39 40 int main() 41 { 42 std::unique_lock<std::mutex> lk(mut); 43 std::thread t(func); 44 Clock::time_point t0 = Clock::now(); 45 cv.wait(lk); 46 Clock::time_point t1 = Clock::now(); 47 assert(t1-t0 > ms(250)); 48 t.join(); 49 } 50
