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37d13ae6 | 1 | // { dg-do run { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* *-*-cygwin *-*-rtems* *-*-darwin1[1-9]* powerpc-ibm-aix* } } |
71c54f8e JW |
2 | // { dg-options "-pthread" { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* powerpc-ibm-aix* } } |
3 | // { dg-require-effective-target c++11 } | |
2942db63 DA |
4 | // { dg-require-cstdint "" } |
5 | // { dg-require-gthreads "" } | |
6 | ||
818ab71a | 7 | // Copyright (C) 2012-2016 Free Software Foundation, Inc. |
2942db63 DA |
8 | // |
9 | // This file is part of the GNU ISO C++ Library. This library is free | |
10 | // software; you can redistribute it and/or modify it under the | |
11 | // terms of the GNU General Public License as published by the | |
12 | // Free Software Foundation; either version 3, or (at your option) | |
13 | // any later version. | |
14 | ||
15 | // This library is distributed in the hope that it will be useful, | |
16 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | // GNU General Public License for more details. | |
19 | ||
20 | // You should have received a copy of the GNU General Public License along | |
21 | // with this library; see the file COPYING3. If not see | |
22 | // <http://www.gnu.org/licenses/>. | |
23 | ||
24 | #include <vector> | |
25 | #include <mutex> | |
26 | #include <condition_variable> | |
27 | #include <thread> | |
28 | ||
29 | // PR libstdc++/54185 | |
30 | ||
31 | std::condition_variable* cond = nullptr; | |
32 | std::mutex mx; | |
33 | int started = 0; | |
34 | int constexpr NUM_THREADS = 10; | |
35 | ||
36 | void do_thread_a() | |
37 | { | |
38 | std::unique_lock<std::mutex> lock(mx); | |
39 | if(++started >= NUM_THREADS) | |
40 | { | |
41 | cond->notify_all(); | |
42 | delete cond; | |
43 | cond = nullptr; | |
44 | } | |
45 | else | |
46 | cond->wait(lock); | |
47 | } | |
48 | ||
49 | int main(){ | |
50 | std::vector<std::thread> vec; | |
51 | for(int j = 0; j < 1000; ++j) | |
52 | { | |
53 | started = 0; | |
54 | cond = new std::condition_variable; | |
55 | for (int i = 0; i < NUM_THREADS; ++i) | |
56 | vec.emplace_back(&do_thread_a); | |
57 | for (int i = 0; i < NUM_THREADS; ++i) | |
58 | vec[i].join(); | |
59 | vec.clear(); | |
60 | } | |
61 | } |