1 // { dg-do run } 2 // { dg-options "-pthread" } 3 // { dg-require-effective-target c++11 } 4 // { dg-require-effective-target pthread } 5 // { dg-require-cstdint "" } 6 // { dg-require-gthreads "" } 7 8 // Copyright (C) 2014-2018 Free Software Foundation, Inc. 9 // 10 // This file is part of the GNU ISO C++ Library. This library is free 11 // software; you can redistribute it and/or modify it under the 12 // terms of the GNU General Public License as published by the 13 // Free Software Foundation; either version 3, or (at your option) 14 // any later version. 15 16 // This library is distributed in the hope that it will be useful, 17 // but WITHOUT ANY WARRANTY; without even the implied warranty of 18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 // GNU General Public License for more details. 20 21 // You should have received a copy of the GNU General Public License along 22 // with this library; see the file COPYING3. If not see 23 // <http://www.gnu.org/licenses/>. 24 25 #include <condition_variable> 26 #include <thread> 27 #include <mutex> 28 #include <testsuite_hooks.h> 29 30 std::mutex mx; 31 std::condition_variable cv; 32 int counter = 0; 33 34 struct Inc 35 { IncInc36 Inc() { ++counter; } ~IncInc37 ~Inc() { ++counter; } 38 }; 39 40 func()41void func() 42 { 43 std::unique_lock<std::mutex> lock{mx}; 44 std::notify_all_at_thread_exit(cv, std::move(lock)); 45 #if CORRECT_THREAD_LOCAL_DTORS 46 // Correct order of thread_local destruction needs __cxa_thread_atexit_impl 47 // or similar support from libc. 48 static thread_local 49 #endif 50 Inc inc; 51 } 52 main()53int main() 54 { 55 std::unique_lock<std::mutex> lock{mx}; 56 std::thread t{func}; 57 cv.wait(lock, [&]{ return counter == 2; }); 58 t.join(); 59 } 60