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bb38d425fb
* Chrono support. * Added object_handle support. * Need to enable the basic_handle class when object_handle is supported. * Update copyright notices. * Fix MSVC "performance warning". * Fix for NetBSD. Fixes #6098. * Fix regression in buffered_write_stream. Fixes #6310. * Fix deadlock on Mac OS X. Fixes #6275. * On linux, connect can return EAGAIN in certain circumstances. Remap to another error so that it doesn't look like a non-blocking operation. Fixes #6048. * Fix non-paged pool "leak" on Windows when io_service is repeatedly run without anything to do. Fixes #6321. * Disable object_handle on Windows CE. * Add extra include required for OVERLAPPED struct. * Fix doxygen comments. * Update documentation. * Add missing class. * Update copyright year. [SVN r76516]
72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
//
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// io_service_pool.cpp
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// ~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#include "server.hpp"
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#include <stdexcept>
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#include <boost/thread/thread.hpp>
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#include <boost/bind.hpp>
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#include <boost/shared_ptr.hpp>
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namespace http {
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namespace server2 {
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io_service_pool::io_service_pool(std::size_t pool_size)
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: next_io_service_(0)
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{
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if (pool_size == 0)
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throw std::runtime_error("io_service_pool size is 0");
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// Give all the io_services work to do so that their run() functions will not
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// exit until they are explicitly stopped.
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for (std::size_t i = 0; i < pool_size; ++i)
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{
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io_service_ptr io_service(new boost::asio::io_service);
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work_ptr work(new boost::asio::io_service::work(*io_service));
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io_services_.push_back(io_service);
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work_.push_back(work);
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}
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}
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void io_service_pool::run()
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{
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// Create a pool of threads to run all of the io_services.
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std::vector<boost::shared_ptr<boost::thread> > threads;
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for (std::size_t i = 0; i < io_services_.size(); ++i)
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{
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boost::shared_ptr<boost::thread> thread(new boost::thread(
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boost::bind(&boost::asio::io_service::run, io_services_[i])));
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threads.push_back(thread);
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}
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// Wait for all threads in the pool to exit.
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for (std::size_t i = 0; i < threads.size(); ++i)
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threads[i]->join();
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}
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void io_service_pool::stop()
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{
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// Explicitly stop all io_services.
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for (std::size_t i = 0; i < io_services_.size(); ++i)
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io_services_[i]->stop();
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}
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boost::asio::io_service& io_service_pool::get_io_service()
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{
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// Use a round-robin scheme to choose the next io_service to use.
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boost::asio::io_service& io_service = *io_services_[next_io_service_];
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++next_io_service_;
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if (next_io_service_ == io_services_.size())
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next_io_service_ = 0;
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return io_service;
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}
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} // namespace server2
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} // namespace http
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