2017-04-10 11:32:00 +00:00
|
|
|
// { dg-do run { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* *-*-cygwin *-*-rtems* *-*-darwin* powerpc-ibm-aix* } }
|
2015-08-28 15:33:40 +00:00
|
|
|
// { dg-options " -std=gnu++11 -pthread" { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* powerpc-ibm-aix* } }
|
2014-09-21 17:33:12 +00:00
|
|
|
// { dg-options " -std=gnu++11 -pthreads" { target *-*-solaris* } }
|
2017-04-10 11:32:00 +00:00
|
|
|
// { dg-options " -std=gnu++11 " { target *-*-cygwin *-*-rtems* *-*-darwin* } }
|
2014-09-21 17:33:12 +00:00
|
|
|
// { dg-require-cstdint "" }
|
|
|
|
// { dg-require-gthreads "" }
|
|
|
|
// { dg-require-atomic-builtins "" }
|
|
|
|
|
2017-04-10 11:32:00 +00:00
|
|
|
// Copyright (C) 2014-2016 Free Software Foundation, Inc.
|
2014-09-21 17:33:12 +00:00
|
|
|
//
|
|
|
|
// 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/>.
|
|
|
|
|
|
|
|
// libstdc++/60966
|
|
|
|
// This test hangs if std::promise::~promise() destroys the
|
|
|
|
// shared state before std::promise::set_value() finishes using it.
|
|
|
|
|
|
|
|
#include <future>
|
|
|
|
#include <thread>
|
|
|
|
#include <vector>
|
|
|
|
|
|
|
|
const int THREADS = 10;
|
|
|
|
|
|
|
|
void run_task(std::promise<void>* pr)
|
|
|
|
{
|
|
|
|
std::this_thread::sleep_for(std::chrono::milliseconds(100));
|
|
|
|
pr->set_value();
|
|
|
|
}
|
|
|
|
|
|
|
|
int main()
|
|
|
|
{
|
|
|
|
std::vector<std::promise<void>*> tasks(THREADS);
|
|
|
|
std::vector<std::thread> threads(THREADS);
|
|
|
|
std::vector<std::future<void>> futures(THREADS);
|
|
|
|
|
|
|
|
for (int i = 0; i < THREADS; ++i)
|
|
|
|
{
|
|
|
|
std::promise<void>* task = new std::promise<void>;
|
|
|
|
tasks[i] = task;
|
|
|
|
futures[i] = task->get_future();
|
|
|
|
threads[i] = std::thread(run_task, task);
|
|
|
|
}
|
|
|
|
|
|
|
|
for (int i = 0; i < THREADS; ++i)
|
|
|
|
{
|
|
|
|
// the temporary future releases the state as soon as wait() returns
|
|
|
|
std::future<void>(std::move(futures[i])).wait();
|
|
|
|
// state is ready, should now be safe to delete promise, so it
|
|
|
|
// releases the shared state too
|
|
|
|
delete tasks[i];
|
|
|
|
}
|
|
|
|
|
|
|
|
for (auto& t : threads)
|
|
|
|
t.join();
|
|
|
|
}
|