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//
// server.cpp
// ~~~~~~~~~~
//
// Copyright (c) 2003-2018 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 "server.hpp"
#include <boost/thread/thread.hpp>
#include <boost/bind.hpp>
#include <boost/shared_ptr.hpp>
#include <vector>
namespace http {
namespace server3 {
server::server(const std::string& address, const std::string& port,
const std::string& doc_root, std::size_t thread_pool_size)
: thread_pool_size_(thread_pool_size),
signals_(io_context_),
acceptor_(io_context_),
new_connection_(),
request_handler_(doc_root)
{
// Register to handle the signals that indicate when the server should exit.
// It is safe to register for the same signal multiple times in a program,
// provided all registration for the specified signal is made through Asio.
signals_.add(SIGINT);
signals_.add(SIGTERM);
#if defined(SIGQUIT)
signals_.add(SIGQUIT);
#endif // defined(SIGQUIT)
signals_.async_wait(boost::bind(&server::handle_stop, this));
// Open the acceptor with the option to reuse the address (i.e. SO_REUSEADDR).
boost::asio::ip::tcp::resolver resolver(io_context_);
boost::asio::ip::tcp::endpoint endpoint =
*resolver.resolve(address, port).begin();
acceptor_.open(endpoint.protocol());
acceptor_.set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
acceptor_.bind(endpoint);
acceptor_.listen();
start_accept();
}
void server::run()
{
// Create a pool of threads to run all of the io_contexts.
std::vector<boost::shared_ptr<boost::thread> > threads;
for (std::size_t i = 0; i < thread_pool_size_; ++i)
{
boost::shared_ptr<boost::thread> thread(new boost::thread(
boost::bind(&boost::asio::io_context::run, &io_context_)));
threads.push_back(thread);
}
// Wait for all threads in the pool to exit.
for (std::size_t i = 0; i < threads.size(); ++i)
threads[i]->join();
}
void server::start_accept()
{
new_connection_.reset(new connection(io_context_, request_handler_));
acceptor_.async_accept(new_connection_->socket(),
boost::bind(&server::handle_accept, this,
boost::asio::placeholders::error));
}
void server::handle_accept(const boost::system::error_code& e)
{
if (!e)
{
new_connection_->start();
}
start_accept();
}
void server::handle_stop()
{
io_context_.stop();
}
} // namespace server3
} // namespace http
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