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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/30_threads/lock/2.cc
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 "" }
8 // Copyright (C) 2010-2013 Free Software Foundation, Inc.
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)
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.
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/>.
28 #include <testsuite_hooks.h>
30 void locker(std::mutex
& m1
, std::mutex
& m2
, std::mutex
& m3
)
32 bool test
__attribute__((unused
)) = true;
34 typedef std::unique_lock
<std::mutex
> lock_type
;
36 lock_type
l1(m1
, std::defer_lock
);
37 lock_type
l2(m2
, std::defer_lock
);
38 lock_type
l3(m3
, std::defer_lock
);
39 std::lock(l1
, l2
, l3
);
40 VERIFY( l1
.owns_lock() );
41 VERIFY( l2
.owns_lock() );
42 VERIFY( l3
.owns_lock() );
47 std::mutex m1
, m2
, m3
;
48 std::thread
t1(locker
, std::ref(m1
), std::ref(m2
), std::ref(m3
));
49 std::thread
t2(locker
, std::ref(m3
), std::ref(m2
), std::ref(m1
));