1 /* 2 * nghttp2 - HTTP/2 C Library 3 * 4 * Copyright (c) 2014 Tatsuhiro Tsujikawa 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining 7 * a copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sublicense, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be 15 * included in all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 20 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 */ 25 // We wrote this code based on the original code which has the 26 // following license: 27 // 28 // io_service_pool.hpp 29 // ~~~~~~~~~~~~~~~~~~~ 30 // 31 // Copyright (c) 2003-2013 Christopher M. Kohlhoff (chris at kohlhoff dot com) 32 // 33 // Distributed under the Boost Software License, Version 1.0. (See accompanying 34 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 35 // 36 37 #ifndef ASIO_IO_SERVICE_POOL_H 38 #define ASIO_IO_SERVICE_POOL_H 39 40 #include "nghttp2_config.h" 41 42 #include <vector> 43 #include <memory> 44 #include <future> 45 46 #include <boost/noncopyable.hpp> 47 #include <boost/thread.hpp> 48 49 #include <nghttp2/asio_http2.h> 50 51 namespace nghttp2 { 52 53 namespace asio_http2 { 54 55 /// A pool of io_service objects. 56 class io_service_pool : private boost::noncopyable { 57 public: 58 /// Construct the io_service pool. 59 explicit io_service_pool(std::size_t pool_size); 60 61 /// Run all io_service objects in the pool. 62 void run(bool asynchronous = false); 63 64 /// Stop all io_service objects in the pool. 65 void force_stop(); 66 67 /// Destroy all work objects to signals end of work 68 void stop(); 69 70 /// Join on all io_service objects in the pool. 71 void join(); 72 73 /// Get an io_service to use. 74 boost::asio::io_service &get_io_service(); 75 76 /// Get access to all io_service objects. 77 const std::vector<std::shared_ptr<boost::asio::io_service>> & 78 io_services() const; 79 80 private: 81 /// The pool of io_services. 82 std::vector<std::shared_ptr<boost::asio::io_service>> io_services_; 83 84 /// The work that keeps the io_services running. 85 std::vector<std::shared_ptr<boost::asio::io_service::work>> work_; 86 87 /// The next io_service to use for a connection. 88 std::size_t next_io_service_; 89 90 /// Futures to all the io_service objects 91 std::vector<std::future<std::size_t>> futures_; 92 }; 93 94 } // namespace asio_http2 95 96 } // namespace nghttp2 97 98 #endif // ASIO_IO_SERVICE_POOL_H 99