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http/server/server.cpp

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00001 //
00002 // server.cpp
00003 // ~~~~~~~~~~
00004 //
00005 // Copyright (c) 2003-2007 Christopher M. Kohlhoff (chris at kohlhoff dot com)
00006 //
00007 // Distributed under the Boost Software License, Version 1.0. (See accompanying
00008 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
00009 //
00010 
00011 #include "server.hpp"
00012 #include <boost/bind.hpp>
00013 
00014 namespace http {
00015 namespace server {
00016 
00017 server::server(const std::string& address, const std::string& port,
00018     const std::string& doc_root)
00019   : io_service_(),
00020     acceptor_(io_service_),
00021     connection_manager_(),
00022     new_connection_(new connection(io_service_,
00023           connection_manager_, request_handler_)),
00024     request_handler_(doc_root)
00025 {
00026   // Open the acceptor with the option to reuse the address (i.e. SO_REUSEADDR).
00027   asio::ip::tcp::resolver resolver(io_service_);
00028   asio::ip::tcp::resolver::query query(address, port);
00029   asio::ip::tcp::endpoint endpoint = *resolver.resolve(query);
00030   acceptor_.open(endpoint.protocol());
00031   acceptor_.set_option(asio::ip::tcp::acceptor::reuse_address(true));
00032   acceptor_.bind(endpoint);
00033   acceptor_.listen();
00034   acceptor_.async_accept(new_connection_->socket(),
00035       boost::bind(&server::handle_accept, this,
00036         asio::placeholders::error));
00037 }
00038 
00039 void server::run()
00040 {
00041   // The io_service::run() call will block until all asynchronous operations
00042   // have finished. While the server is running, there is always at least one
00043   // asynchronous operation outstanding: the asynchronous accept call waiting
00044   // for new incoming connections.
00045   io_service_.run();
00046 }
00047 
00048 void server::stop()
00049 {
00050   // Post a call to the stop function so that server::stop() is safe to call
00051   // from any thread.
00052   io_service_.post(boost::bind(&server::handle_stop, this));
00053 }
00054 
00055 void server::handle_accept(const asio::error_code& e)
00056 {
00057   if (!e)
00058   {
00059     connection_manager_.start(new_connection_);
00060     new_connection_.reset(new connection(io_service_,
00061           connection_manager_, request_handler_));
00062     acceptor_.async_accept(new_connection_->socket(),
00063         boost::bind(&server::handle_accept, this,
00064           asio::placeholders::error));
00065   }
00066 }
00067 
00068 void server::handle_stop()
00069 {
00070   // The server is stopped by cancelling all outstanding asynchronous
00071   // operations. Once all operations have finished the io_service::run() call
00072   // will exit.
00073   acceptor_.close();
00074   connection_manager_.stop_all();
00075 }
00076 
00077 } // namespace server
00078 } // namespace http
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