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//
// impl/system_context.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// 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)
//
#ifndef BOOST_ASIO_IMPL_SYSTEM_CONTEXT_IPP
#define BOOST_ASIO_IMPL_SYSTEM_CONTEXT_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/asio/system_context.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
struct system_context::thread_function
{
detail::scheduler* scheduler_;
void operator()()
{
boost::system::error_code ec;
scheduler_->run(ec);
}
};
system_context::system_context()
: scheduler_(use_service<detail::scheduler>(*this))
{
scheduler_.work_started();
thread_function f = { &scheduler_ };
std::size_t num_threads = detail::thread::hardware_concurrency() * 2;
threads_.create_threads(f, num_threads ? num_threads : 2);
}
system_context::~system_context()
{
scheduler_.work_finished();
scheduler_.stop();
threads_.join();
}
void system_context::stop()
{
scheduler_.stop();
}
bool system_context::stopped() const BOOST_ASIO_NOEXCEPT
{
return scheduler_.stopped();
}
void system_context::join()
{
scheduler_.work_finished();
threads_.join();
}
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_IMPL_SYSTEM_CONTEXT_IPP
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