Sleds/cppboost/libs/thread/example/future_fallback_to.cpp

79 lines
1.7 KiB
C++

// Copyright (C) 2012-2013 Vicente Botet
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#define BOOST_THREAD_VERSION 4
#define BOOST_THREAD_USES_LOG
#define BOOST_THREAD_USES_LOG_THREAD_ID
#include <boost/thread/detail/log.hpp>
#include <boost/thread/future.hpp>
#include <boost/assert.hpp>
#include <exception>
#include <string>
#if defined BOOST_THREAD_PROVIDES_FUTURE_CONTINUATION
int p1_ex()
{
BOOST_THREAD_LOG << "P1" << BOOST_THREAD_END_LOG;
throw std::logic_error("kk");
}
int p1()
{
BOOST_THREAD_LOG << "P1" << BOOST_THREAD_END_LOG;
return 1;;
}
int main()
{
BOOST_THREAD_LOG << "<MAIN" << BOOST_THREAD_END_LOG;
{
try
{
boost::future<int> f1 = boost::async(boost::launch::async, &p1);
boost::future<int> f2 = f1.fallback_to(-1);
assert(f2.get()==1);
}
catch (std::exception& ex)
{
BOOST_THREAD_LOG << "ERRORRRRR "<<ex.what() << "" << BOOST_THREAD_END_LOG;
return 1;
}
catch (...)
{
BOOST_THREAD_LOG << " ERRORRRRR exception thrown" << BOOST_THREAD_END_LOG;
return 2;
}
}
{
try
{
boost::future<int> f1 = boost::async(boost::launch::async, &p1_ex);
boost::future<int> f2 = f1.fallback_to(-1);
assert(f2.get()==-1);
}
catch (std::exception& ex)
{
BOOST_THREAD_LOG << "ERRORRRRR "<<ex.what() << "" << BOOST_THREAD_END_LOG;
return 1;
}
catch (...)
{
BOOST_THREAD_LOG << " ERRORRRRR exception thrown" << BOOST_THREAD_END_LOG;
return 2;
}
}
BOOST_THREAD_LOG << "MAIN>" << BOOST_THREAD_END_LOG;
return 0;
}
#else
int main()
{
return 0;
}
#endif