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/*
Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef DCPOMATIC_SERVER_H
#define DCPOMATIC_SERVER_H
/** @file src/server.h
* @brief Class to describe a server to which we can send
* encoding work, and a class to implement such a server.
*/
#include <string>
#include <boost/thread.hpp>
#include <boost/asio.hpp>
#include <boost/thread/condition.hpp>
#include <boost/optional.hpp>
#include <libxml++/libxml++.h>
#include "log.h"
#include "exceptions.h"
class Socket;
namespace cxml {
class Node;
}
/** @class ServerDescription
* @brief Class to describe a server to which we can send encoding work.
*/
class ServerDescription
{
public:
ServerDescription ()
: _host_name ("")
, _threads (1)
{}
/** @param h Server host name or IP address in string form.
* @param t Number of threads to use on the server.
*/
ServerDescription (std::string h, int t)
: _host_name (h)
, _threads (t)
{}
ServerDescription (boost::shared_ptr<const cxml::Node>);
/* Default copy constructor is fine */
/** @return server's host name or IP address in string form */
std::string host_name () const {
return _host_name;
}
/** @return number of threads to use on the server */
int threads () const {
return _threads;
}
void set_host_name (std::string n) {
_host_name = n;
}
void set_threads (int t) {
_threads = t;
}
void as_xml (xmlpp::Node *) const;
static boost::optional<ServerDescription> create_from_metadata (std::string);
private:
/** server's host name */
std::string _host_name;
/** number of threads to use on the server */
int _threads;
};
class Server : public ExceptionStore, public boost::noncopyable
{
public:
Server (boost::shared_ptr<Log> log, bool verbose);
void run (int num_threads);
private:
void worker_thread ();
int process (boost::shared_ptr<Socket> socket, struct timeval &, struct timeval &);
void broadcast_thread ();
void broadcast_received ();
std::vector<boost::thread *> _worker_threads;
std::list<boost::shared_ptr<Socket> > _queue;
boost::mutex _worker_mutex;
boost::condition _worker_condition;
boost::shared_ptr<Log> _log;
bool _verbose;
struct Broadcast {
Broadcast ()
: thread (0)
, socket (0)
{}
boost::thread* thread;
boost::asio::ip::udp::socket* socket;
char buffer[64];
boost::asio::ip::udp::endpoint send_endpoint;
} _broadcast;
};
#endif
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