thread/example/this_executor.cpp

86 lines
2.1 KiB
C++

// Copyright (C) 2014 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>
#if ! defined BOOST_NO_CXX11_DECLTYPE
#define BOOST_RESULT_OF_USE_DECLTYPE
#endif
#define BOOST_THREAD_VERSION 5
#define BOOST_THREAD_USES_LOG_THREAD_ID
#include <boost/thread/caller_context.hpp>
#include <boost/thread/executors/basic_thread_pool.hpp>
#include <boost/thread/executors/generic_executor_ref.hpp>
#include <boost/smart_ptr/shared_ptr.hpp>
#include <boost/smart_ptr/make_shared.hpp>
#include <string>
#include <iostream>
#include <boost/thread/caller_context.hpp>
struct current_executor_state_type {
boost::shared_ptr<boost::generic_executor_ref> current_executor_ptr;
template <class Executor>
void set_current_executor(Executor& ex)
{
current_executor_ptr = boost::make_shared<boost::generic_executor_ref>(ex);
}
boost::generic_executor_ref current_executor()
{
if (current_executor_ptr)
return *current_executor_ptr;
else
throw "";
}
};
thread_local current_executor_state_type current_executor_state;
boost::generic_executor_ref current_executor()
{
return current_executor_state.current_executor();
}
void p2()
{
std::cout << BOOST_CONTEXTOF << std::endl;
boost::this_thread::sleep_for(boost::chrono::milliseconds(200));
std::cout << BOOST_CONTEXTOF << std::endl;
}
void p1()
{
std::cout << BOOST_CONTEXTOF << std::endl;
boost::this_thread::sleep_for(boost::chrono::milliseconds(200));
current_executor().submit(&p2);
boost::this_thread::sleep_for(boost::chrono::milliseconds(400));
std::cout << BOOST_CONTEXTOF << std::endl;
}
int main()
{
std::cout << BOOST_CONTEXTOF << std::endl;
boost::basic_thread_pool tp(4,
// at_thread_entry
[](boost::basic_thread_pool& pool)
{
current_executor_state.set_current_executor(pool);
}
);
tp.submit(&p1);
boost::this_thread::sleep_for(boost::chrono::seconds(5));
std::cout << BOOST_CONTEXTOF << std::endl;
return 1;
}