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// Copyright (C) 2010 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)
#include <boost/config.hpp>
#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
#include <boost/detail/lightweight_test.hpp>
#include <boost/thread/future.hpp>
#include <boost/utility/result_of.hpp>
#include <functional>
struct async_func {
virtual ~async_func() { }
virtual void run() =0;
};
template <typename Ret>
class async_func_pt : public async_func {
boost::packaged_task<Ret> f;
public:
void run() {
std::cout << __FILE__ << ":" << __LINE__ << std::endl;
f(); }
async_func_pt (boost::packaged_task<Ret>&& f) : f(boost::move(f)) {}
~async_func_pt() { }
boost::unique_future<Ret> get_future() { return f.get_future(); }
};
void async_core (async_func* p) {
std::cout << __FILE__ << ":" << __LINE__ << std::endl;
p->run();
}
template <typename F>
boost::unique_future<typename boost::result_of< F() >::type>
async (F&& f)
{
std::cout << __FILE__ << ":" << __LINE__ << std::endl;
typedef typename boost::result_of< F() >::type RetType;
std::cout << __FILE__ << ":" << __LINE__ << std::endl;
async_func_pt<RetType>* p= new async_func_pt<RetType> (boost::packaged_task<RetType>(boost::forward<F>(f)));
std::cout << __FILE__ << ":" << __LINE__ << std::endl;
boost::unique_future<RetType> future_result= p->get_future();
std::cout << __FILE__ << ":" << __LINE__ << std::endl;
async_core (p);
std::cout << __FILE__ << ":" << __LINE__ << std::endl;
return boost::move(future_result);
}
template <typename F, typename A1>
boost::unique_future<typename boost::result_of< F(A1) >::type>
async (F&& f, A1&& a1)
{
std::cout << __FILE__ << ":" << __LINE__ << std::endl;
// This should be all it needs. But get a funny error deep inside Boost.
// problem overloading with && ?
return async (boost::bind(f,a1));
}
int calculate_the_answer_to_life_the_universe_and_everything()
{
return 42;
}
size_t foo (const std::string& s)
{
return s.size();
}
void test1()
{
// this one works
// most fundimental form:
std::cout << __FILE__ << ":" << __LINE__ << std::endl;
boost::unique_future<int> fi= async (&calculate_the_answer_to_life_the_universe_and_everything);
int i= fi.get();
BOOST_TEST (i== 42);
// This one chokes at compile time
std::cout << __FILE__ << ":" << __LINE__ << std::endl;
boost::unique_future<size_t> fut_1= async (&foo, "Life");
BOOST_TEST (fut_1.get()== 4);
}
int main()
{
test1();
return boost::report_errors();
}
#else
int main()
{
return 0;
}
#endif
/*
*
"/Users/viboes/clang/llvmCore-3.0-rc1.install/bin/clang++"
-o "../../../bin.v2/libs/thread/test/test_ml.test/clang-darwin-3.0x/debug/threading-multi/test_ml"
"../../../bin.v2/libs/thread/test/test_ml.test/clang-darwin-3.0x/debug/threading-multi/test_ml.o"
"../../../bin.v2/libs/test/build/clang-darwin-3.0x/debug/link-static/threading-multi/libboost_unit_test_framework.a"
"../../../bin.v2/libs/thread/build/clang-darwin-3.0x/debug/threading-multi/libboost_thread.dylib"
"../../../bin.v2/libs/chrono/build/clang-darwin-3.0x/debug/threading-multi/libboost_chrono.dylib"
"../../../bin.v2/libs/system/build/clang-darwin-3.0x/debug/threading-multi/libboost_system.dylib" -g
*/
/*
*
* #include <boost/test/unit_test.hpp>
#include <boost/thread/future.hpp>
#include <boost/utility/result_of.hpp>
#include <functional>
struct async_func {
virtual ~async_func() { }
virtual void run() =0;
};
template <typename Ret>
class async_func_pt : public async_func {
boost::packaged_task<Ret> f;
public:
void run() override { f(); }
async_func_pt (boost::packaged_task<Ret>&& f) : f(std::move(f)) {}
~async_func_pt() { }
boost::unique_future<Ret> get_future() { return f.get_future(); }
};
void async_core (async_func* p);
template <typename F>
boost::unique_future<typename boost::result_of< F() >::type>
async (F&& f)
{
typedef typename boost::result_of< F() >::type RetType;
async_func_pt<RetType>* p= new async_func_pt<RetType> (boost::packaged_task<RetType>(f));
boost::unique_future<RetType> future_result= p->get_future();
async_core (p);
return std::move(future_result);
}
template <typename F, typename A1>
boost::unique_future<typename boost::result_of< F(A1) >::type>
async (F&& f, A1&& a1)
{
// This should be all it needs. But get a funny error deep inside Boost.
// problem overloading with && ?
return async (std::tr1::bind(f,a1));
}
BOOST_AUTO_TEST_SUITE(thread_pool_tests)
int calculate_the_answer_to_life_the_universe_and_everything()
{
return 42;
}
size_t foo (const std::string& s)
{
return s.size();
}
BOOST_AUTO_TEST_CASE( async_test )
{
// this one works
// most fundimental form:
boost::unique_future<int> fi= async (&calculate_the_answer_to_life_the_universe_and_everything);
int i= fi.get();
BOOST_CHECK_EQUAL (i, 42);
// This one chokes at compile time
boost::unique_future<size_t> fut_1= async (&foo, "Life");
BOOST_CHECK_EQUAL (fut_1.get(), 4);
}
BOOST_AUTO_TEST_SUITE_END()
*/
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