104 lines
2.2 KiB
C++
104 lines
2.2 KiB
C++
// { dg-do run }
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// { dg-options "-pthread" }
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// { dg-require-effective-target c++11 }
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// { dg-require-effective-target pthread }
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// { dg-require-gthreads "" }
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// Copyright (C) 2008-2020 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 <system_error>
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#include <testsuite_hooks.h>
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typedef std::unique_lock<std::mutex> lock_type;
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void test01()
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{
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try
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{
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std::mutex m1, m2, m3;
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lock_type l1(m1);
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int result = std::try_lock(m1, m2, m3);
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VERIFY( result == 0 );
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VERIFY( l1.owns_lock() );
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lock_type l2(m2);
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lock_type l3(m3);
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}
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catch (const std::system_error& e)
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{
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VERIFY( false );
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}
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catch (...)
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{
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VERIFY( false );
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}
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}
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void test02()
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{
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try
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{
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std::mutex m1, m2, m3;
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lock_type l2(m2);
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int result = std::try_lock(m1, m2, m3);
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VERIFY( result == 1 );
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VERIFY( l2.owns_lock() );
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lock_type l1(m1);
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lock_type l3(m3);
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}
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catch (const std::system_error& e)
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{
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VERIFY( false );
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}
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catch (...)
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{
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VERIFY( false );
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}
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}
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void test03()
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{
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try
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{
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std::mutex m1, m2, m3;
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lock_type l3(m3);
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int result = std::try_lock(m1, m2, m3);
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VERIFY( result == 2 );
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VERIFY( l3.owns_lock() );
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lock_type l1(m1);
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lock_type l2(m2);
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}
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catch (const std::system_error& e)
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{
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VERIFY( false );
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}
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catch (...)
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{
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VERIFY( false );
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}
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}
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int main()
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{
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test01();
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test02();
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test03();
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return 0;
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}
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