59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
// { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* powerpc-ibm-aix* } }
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// { dg-options " -std=gnu++0x -pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* powerpc-ibm-aix* } }
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// { dg-options " -std=gnu++0x -pthreads" { target *-*-solaris* } }
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// { dg-options " -std=gnu++0x " { target *-*-cygwin *-*-darwin* } }
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// { dg-require-cstdint "" }
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// { dg-require-gthreads "" }
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// Copyright (C) 2010-2013 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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#include <mutex>
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#include <thread>
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#include <testsuite_hooks.h>
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void locker(std::mutex& m1, std::mutex& m2, std::mutex& m3)
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{
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bool test __attribute__((unused)) = true;
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typedef std::unique_lock<std::mutex> lock_type;
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lock_type l1(m1, std::defer_lock);
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lock_type l2(m2, std::defer_lock);
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lock_type l3(m3, std::defer_lock);
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std::lock(l1, l2, l3);
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VERIFY( l1.owns_lock() );
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VERIFY( l2.owns_lock() );
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VERIFY( l3.owns_lock() );
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}
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void test01()
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{
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std::mutex m1, m2, m3;
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std::thread t1(locker, std::ref(m1), std::ref(m2), std::ref(m3));
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std::thread t2(locker, std::ref(m3), std::ref(m2), std::ref(m1));
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t1.join();
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t2.join();
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}
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int main()
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{
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test01();
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return 0;
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}
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