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Files
asio/example/http/server3/connection.cpp
Christopher Kohlhoff 2b5306585d Merge fixes from trunk.
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  r43377 | chris_kohlhoff | 2008-02-23 09:43:54 +1100 (Sat, 23 Feb 2008) | 2 lines
  
  Use the correct vector of timer queues when dispatching timers.
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  r43437 | chris_kohlhoff | 2008-02-29 23:57:57 +1100 (Fri, 29 Feb 2008) | 2 lines
  
  Add missing tie().
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  r43469 | chris_kohlhoff | 2008-03-04 00:21:05 +1100 (Tue, 04 Mar 2008) | 4 lines
  
  Disable use of CancelIo by default, due to the possibility of silent
  failure on some system configurations. Swallow error returned by CancelIoEx
  if there are no operations to be cancelled.
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  r43470 | chris_kohlhoff | 2008-03-04 00:27:06 +1100 (Tue, 04 Mar 2008) | 2 lines
  
  Add missing 'boost_' prefix to helper namespace.
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  r43471 | chris_kohlhoff | 2008-03-04 00:36:35 +1100 (Tue, 04 Mar 2008) | 2 lines
  
  Regenerate documentation.
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  r43472 | chris_kohlhoff | 2008-03-04 01:05:35 +1100 (Tue, 04 Mar 2008) | 1 line
  
  Update copyright notices.
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  r43473 | chris_kohlhoff | 2008-03-04 01:13:01 +1100 (Tue, 04 Mar 2008) | 2 lines
  
  Update copyright notices.
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  r43569 | chris_kohlhoff | 2008-03-13 00:25:49 +1100 (Thu, 13 Mar 2008) | 4 lines
  
  Revert to having the windows-bug workaround (short timeout on
  GetQueuedCompletionStatus) on all threads as there are still scenarios
  where threads can get stuck indefinitely.
........


[SVN r43571]
2008-03-12 14:12:08 +00:00

99 lines
2.9 KiB
C++

//
// connection.cpp
// ~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2008 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)
//
#include "connection.hpp"
#include <vector>
#include <boost/bind.hpp>
#include "request_handler.hpp"
namespace http {
namespace server3 {
connection::connection(boost::asio::io_service& io_service,
request_handler& handler)
: strand_(io_service),
socket_(io_service),
request_handler_(handler)
{
}
boost::asio::ip::tcp::socket& connection::socket()
{
return socket_;
}
void connection::start()
{
socket_.async_read_some(boost::asio::buffer(buffer_),
strand_.wrap(
boost::bind(&connection::handle_read, shared_from_this(),
boost::asio::placeholders::error,
boost::asio::placeholders::bytes_transferred)));
}
void connection::handle_read(const boost::system::error_code& e,
std::size_t bytes_transferred)
{
if (!e)
{
boost::tribool result;
boost::tie(result, boost::tuples::ignore) = request_parser_.parse(
request_, buffer_.data(), buffer_.data() + bytes_transferred);
if (result)
{
request_handler_.handle_request(request_, reply_);
boost::asio::async_write(socket_, reply_.to_buffers(),
strand_.wrap(
boost::bind(&connection::handle_write, shared_from_this(),
boost::asio::placeholders::error)));
}
else if (!result)
{
reply_ = reply::stock_reply(reply::bad_request);
boost::asio::async_write(socket_, reply_.to_buffers(),
strand_.wrap(
boost::bind(&connection::handle_write, shared_from_this(),
boost::asio::placeholders::error)));
}
else
{
socket_.async_read_some(boost::asio::buffer(buffer_),
strand_.wrap(
boost::bind(&connection::handle_read, shared_from_this(),
boost::asio::placeholders::error,
boost::asio::placeholders::bytes_transferred)));
}
}
// If an error occurs then no new asynchronous operations are started. This
// means that all shared_ptr references to the connection object will
// disappear and the object will be destroyed automatically after this
// handler returns. The connection class's destructor closes the socket.
}
void connection::handle_write(const boost::system::error_code& e)
{
if (!e)
{
// Initiate graceful connection closure.
boost::system::error_code ignored_ec;
socket_.shutdown(boost::asio::ip::tcp::socket::shutdown_both, ignored_ec);
}
// No new asynchronous operations are started. This means that all shared_ptr
// references to the connection object will disappear and the object will be
// destroyed automatically after this handler returns. The connection class's
// destructor closes the socket.
}
} // namespace server3
} // namespace http