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 // <condition_variable> 11 12 // class condition_variable_any; 13 14 // void notify_all(); 15 16 #include <condition_variable> 17 #include <mutex> 18 #include <thread> 19 #include <cassert> 20 21 std::condition_variable_any cv; 22 23 typedef std::timed_mutex L0; 24 typedef std::unique_lock<L0> L1; 25 26 L0 m0; 27 28 int test0 = 0; 29 int test1 = 0; 30 int test2 = 0; 31 32 void f1() 33 { 34 L1 lk(m0); 35 assert(test1 == 0); 36 while (test1 == 0) 37 cv.wait(lk); 38 assert(test1 == 1); 39 test1 = 2; 40 } 41 42 void f2() 43 { 44 L1 lk(m0); 45 assert(test2 == 0); 46 while (test2 == 0) 47 cv.wait(lk); 48 assert(test2 == 1); 49 test2 = 2; 50 } 51 52 int main() 53 { 54 std::thread t1(f1); 55 std::thread t2(f2); 56 std::this_thread::sleep_for(std::chrono::milliseconds(100)); 57 { 58 L1 lk(m0); 59 test1 = 1; 60 test2 = 1; 61 } 62 cv.notify_all(); 63 { 64 std::this_thread::sleep_for(std::chrono::milliseconds(100)); 65 L1 lk(m0); 66 } 67 t1.join(); 68 t2.join(); 69 assert(test1 == 2); 70 assert(test2 == 2); 71 } 72
