| // |
| // impl/thread_pool.ipp |
| // ~~~~~~~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2015 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 ASIO_IMPL_THREAD_POOL_IPP |
| #define ASIO_IMPL_THREAD_POOL_IPP |
| |
| #if defined(_MSC_VER) && (_MSC_VER >= 1200) |
| # pragma once |
| #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) |
| |
| #include "asio/detail/config.hpp" |
| #include "asio/thread_pool.hpp" |
| |
| #include "asio/detail/push_options.hpp" |
| |
| namespace asio { |
| |
| struct thread_pool::thread_function |
| { |
| detail::scheduler* scheduler_; |
| |
| void operator()() |
| { |
| asio::error_code ec; |
| scheduler_->run(ec); |
| } |
| }; |
| |
| thread_pool::thread_pool() |
| : 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); |
| } |
| |
| thread_pool::thread_pool(std::size_t num_threads) |
| : scheduler_(use_service<detail::scheduler>(*this)) |
| { |
| scheduler_.work_started(); |
| |
| thread_function f = { &scheduler_ }; |
| threads_.create_threads(f, num_threads); |
| } |
| |
| thread_pool::~thread_pool() |
| { |
| stop(); |
| join(); |
| } |
| |
| void thread_pool::stop() |
| { |
| scheduler_.stop(); |
| } |
| |
| void thread_pool::join() |
| { |
| scheduler_.work_finished(); |
| threads_.join(); |
| } |
| |
| } // namespace asio |
| |
| #include "asio/detail/pop_options.hpp" |
| |
| #endif // ASIO_IMPL_THREAD_POOL_IPP |