104 lines
3.1 KiB
C++
104 lines
3.1 KiB
C++
#ifndef SERVER_HPP
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#define SERVER_HPP
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#include "server/connection.hpp"
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#include "server/request_handler.hpp"
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#include "util/integer_range.hpp"
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#include "util/simple_logger.hpp"
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#include <boost/asio.hpp>
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#include <boost/bind.hpp>
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#include <zlib.h>
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#include <functional>
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#include <memory>
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#include <thread>
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#include <vector>
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#include <string>
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namespace osrm
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{
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namespace server
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{
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class Server
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{
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public:
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// Note: returns a shared instead of a unique ptr as it is captured in a lambda somewhere else
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static std::shared_ptr<Server>
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CreateServer(std::string &ip_address, int ip_port, unsigned requested_num_threads)
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{
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util::SimpleLogger().Write() << "http 1.1 compression handled by zlib version "
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<< zlibVersion();
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const unsigned hardware_threads = std::max(1u, std::thread::hardware_concurrency());
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const unsigned real_num_threads = std::min(hardware_threads, requested_num_threads);
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return std::make_shared<Server>(ip_address, ip_port, real_num_threads);
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}
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explicit Server(const std::string &address, const int port, const unsigned thread_pool_size)
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: thread_pool_size(thread_pool_size), acceptor(io_service),
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new_connection(std::make_shared<Connection>(io_service, request_handler))
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{
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const auto port_string = std::to_string(port);
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boost::asio::ip::tcp::resolver resolver(io_service);
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boost::asio::ip::tcp::resolver::query query(address, port_string);
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boost::asio::ip::tcp::endpoint endpoint = *resolver.resolve(query);
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acceptor.open(endpoint.protocol());
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acceptor.set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
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acceptor.bind(endpoint);
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acceptor.listen();
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util::SimpleLogger().Write() << "Listening on: " << acceptor.local_endpoint();
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acceptor.async_accept(
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new_connection->socket(),
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boost::bind(&Server::HandleAccept, this, boost::asio::placeholders::error));
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}
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void Run()
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{
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std::vector<std::shared_ptr<std::thread>> threads;
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for (unsigned i = 0; i < thread_pool_size; ++i)
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{
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std::shared_ptr<std::thread> thread = std::make_shared<std::thread>(
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boost::bind(&boost::asio::io_service::run, &io_service));
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threads.push_back(thread);
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}
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for (auto thread : threads)
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{
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thread->join();
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}
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}
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void Stop() { io_service.stop(); }
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RequestHandler &GetRequestHandlerPtr() { return request_handler; }
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private:
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void HandleAccept(const boost::system::error_code &e)
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{
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if (!e)
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{
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new_connection->start();
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new_connection = std::make_shared<Connection>(io_service, request_handler);
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acceptor.async_accept(
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new_connection->socket(),
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boost::bind(&Server::HandleAccept, this, boost::asio::placeholders::error));
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}
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}
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unsigned thread_pool_size;
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boost::asio::io_service io_service;
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boost::asio::ip::tcp::acceptor acceptor;
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std::shared_ptr<Connection> new_connection;
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RequestHandler request_handler;
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};
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}
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}
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#endif // SERVER_HPP
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