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// { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* alpha*-*-osf* mips-sgi-irix6* powerpc-ibm-aix* } }

// { dg-options " -std=gnu++0x -pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* alpha*-*-osf* mips-sgi-irix6* powerpc-ibm-aix* } }

// { dg-options " -std=gnu++0x -pthreads" { target *-*-solaris* } }

// { dg-options " -std=gnu++0x " { target *-*-cygwin *-*-darwin* } }

// { dg-require-cstdint "" }

// { dg-require-gthreads "" }

// { dg-require-atomic-builtins "" }

// Copyright (C) 2009, 2010, 2011, 2012 Free Software Foundation, Inc.

//

// This file is part of the GNU ISO C++ Library.  This library is free

// software; you can redistribute it and/or modify it under the

// terms of the GNU General Public License as published by the

// Free Software Foundation; either version 3, or (at your option)

// any later version.

// This library is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along

// with this library; see the file COPYING3.  If not see

// <http://www.gnu.org/licenses/>.

#include <future>

#include <testsuite_hooks.h>

// Test promise::set_value() for deadlock by checking if the state is ready

// during construction and destruction of the associated state.

struct tester

{

  tester(int);

  tester(const tester&);

  tester() = delete;

  tester& operator=(const tester&);

};

std::promise<tester> pglobal;

std::future<tester> fglobal = pglobal.get_future();

auto delay = std::chrono::milliseconds(1);

tester::tester(int)

{

  bool test __attribute__((unused)) = true;

  VERIFY (fglobal.wait_for(delay) == std::future_status::timeout);

}

tester::tester(const tester&)

{

  bool test __attribute__((unused)) = true;

  // if this copy happens while a mutex is locked next line could deadlock:

  VERIFY (fglobal.wait_for(delay) == std::future_status::timeout);

}

tester& tester::operator=(const tester&)

{

  bool test __attribute__((unused)) = true;

  // if this copy happens while a mutex is locked next line could deadlock:

  VERIFY (fglobal.wait_for(delay) == std::future_status::timeout);

  return *this;

}

void test01()

{

  bool test __attribute__((unused)) = true;

  pglobal.set_value( tester(1) );

  VERIFY (fglobal.wait_for(delay) == std::future_status::ready);

}

int main()

{

  test01();

  return 0;

}