1 // { dg-do run }
2 // { dg-options "-pthread"  }
3 // { dg-require-effective-target c++14 }
4 // { dg-require-effective-target pthread }
5 // { dg-require-gthreads "" }
6 
7 // Copyright (C) 2019-2020 Free Software Foundation, Inc.
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 
25 #include <mutex>
26 #include <thread>
27 #include <system_error>
28 #include <testsuite_hooks.h>
29 #include <slow_clock.h>
30 
31 template <typename clock_type>
test()32 void test()
33 {
34   typedef std::timed_mutex mutex_type;
35 
36   try
37     {
38       mutex_type m;
39       m.lock();
40       bool b;
41 
42       std::thread t([&] {
43 	try
44 	  {
45 	    using namespace std::chrono;
46 	    const auto timeout = 100ms;
47 	    const auto start = clock_type::now();
48 	    const auto b = m.try_lock_until(start + timeout);
49 	    const auto t = clock_type::now() - start;
50 	    VERIFY( !b );
51 	    VERIFY( t >= timeout );
52 	  }
53 	catch (const std::system_error& e)
54 	  {
55 	    VERIFY( false );
56 	  }
57 	});
58       t.join();
59       m.unlock();
60     }
61   catch (const std::system_error& e)
62     {
63       VERIFY( false );
64     }
65   catch (...)
66     {
67       VERIFY( false );
68     }
69 }
70 
main()71 int main()
72 {
73   test<std::chrono::system_clock>();
74   test<std::chrono::steady_clock>();
75   test<__gnu_test::slow_clock>();
76 }
77