Retro68/gcc/libstdc++-v3/testsuite/30_threads/async/async.cc
2015-08-28 17:33:40 +02:00

72 lines
2.3 KiB
C++

// { dg-do run { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* *-*-cygwin *-*-darwin* powerpc-ibm-aix* } }
// { dg-options " -std=gnu++11 -pthread" { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* powerpc-ibm-aix* } }
// { dg-options " -std=gnu++11 -pthreads" { target *-*-solaris* } }
// { dg-options " -std=gnu++11 " { target *-*-cygwin *-*-darwin* } }
// { dg-require-cstdint "" }
// { dg-require-gthreads "" }
// { dg-require-atomic-builtins "" }
// Copyright (C) 2010-2015 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>
using namespace std;
void work(mutex& m)
{
unique_lock<mutex> l(m);
}
void test01()
{
mutex m;
unique_lock<mutex> l(m);
future<void> f1 = async(launch::async, &work, ref(m));
l.unlock(); // allow async thread to proceed
f1.get(); // wait for it to finish
}
void test02()
{
bool test __attribute__((unused)) = true;
mutex m;
unique_lock<mutex> l(m);
future<void> f1 = async(launch::async, &work, ref(m));
std::future_status status;
status = f1.wait_for(std::chrono::milliseconds(1));
VERIFY( status == std::future_status::timeout );
status = f1.wait_until(std::chrono::system_clock::now());
VERIFY( status == std::future_status::timeout );
l.unlock(); // allow async thread to proceed
f1.wait(); // wait for it to finish
status = f1.wait_for(std::chrono::milliseconds(0));
VERIFY( status == std::future_status::ready );
status = f1.wait_until(std::chrono::system_clock::now());
VERIFY( status == std::future_status::ready );
}
int main()
{
test01();
test02();
return 0;
}