1 // { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* *-*-cygwin *-*-darwin* powerpc-ibm-aix* } }
2 // { dg-options " -std=gnu++0x -pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-gnu* powerpc-ibm-aix* } }
3 // { dg-options " -std=gnu++0x -pthreads" { target *-*-solaris* } }
4 // { dg-options " -std=gnu++0x " { target *-*-cygwin *-*-darwin* } }
5 // { dg-require-cstdint "" }
6 // { dg-require-gthreads "" }
7 // { dg-require-sched-yield "" }
9 // Copyright (C) 2011-2013 Free Software Foundation, Inc.
11 // This file is part of the GNU ISO C++ Library. This library is free
12 // software; you can redistribute it and/or modify it under the
13 // terms of the GNU General Public License as published by the
14 // Free Software Foundation; either version 3, or (at your option)
17 // This library is distributed in the hope that it will be useful,
18 // but WITHOUT ANY WARRANTY; without even the implied warranty of
19 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 // GNU General Public License for more details.
22 // You should have received a copy of the GNU General Public License along
23 // with this library; see the file COPYING3. If not see
24 // <http://www.gnu.org/licenses/>.
26 #include <condition_variable>
34 ~scoped_thread() { if (t
.joinable()) t
.join(); }
40 typedef std::unique_lock
<std::mutex
> Lock
;
43 std::condition_variable_any cond
;
44 unsigned int product
= 0;
45 const unsigned int count
= 10;
47 // writing to stream causes timing changes which makes deadlock easier
48 // to reproduce - do not remove
49 std::ostringstream out
;
52 std::array
<scoped_thread
, 2> threads
;
53 for (std::size_t i
= 0; i
< threads
.size(); ++i
)
57 for (unsigned int i
= 0; i
< count
; ++i
)
59 std::this_thread::yield();
64 << std::this_thread::get_id()
65 << ' ' << product
<< std::endl
;
71 for (std::size_t i
= 0; i
< threads
.size() * count
; ++i
)
73 std::this_thread::yield();
76 out
<< "setting product " << std::this_thread::get_id()
77 << ' ' << product
<< std::endl
;