/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic 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,
+ DCP-o-matic 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.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
-/** @file src/server.cc
- * @brief Class to describe a server to which we can send
- * encoding work, and a class to implement such a server.
- */
-
-#include <string>
-#include <vector>
-#include <sstream>
-#include <iostream>
-#include <boost/algorithm/string.hpp>
-#include <boost/lexical_cast.hpp>
-#include <boost/scoped_array.hpp>
-#include <libcxml/cxml.h>
#include "server.h"
-#include "util.h"
-#include "scaler.h"
-#include "image.h"
-#include "dcp_video_frame.h"
-#include "config.h"
-#include "cross.h"
+#include "dcpomatic_socket.h"
#include "i18n.h"
-using std::string;
-using std::stringstream;
-using std::multimap;
-using std::vector;
-using std::list;
using boost::shared_ptr;
-using boost::algorithm::is_any_of;
-using boost::algorithm::split;
-using boost::thread;
-using boost::bind;
-using boost::scoped_array;
-using boost::optional;
-using libdcp::Size;
-
-ServerDescription::ServerDescription (shared_ptr<const cxml::Node> node)
-{
- _host_name = node->string_child ("HostName");
- _threads = node->number_child<int> ("Threads");
-}
-void
-ServerDescription::as_xml (xmlpp::Node* root) const
+Server::Server (int port, int timeout)
+ : _terminate (false)
+ , _acceptor (_io_service, boost::asio::ip::tcp::endpoint (boost::asio::ip::tcp::v4(), port))
+ , _timeout (timeout)
{
- root->add_child("HostName")->add_child_text (_host_name);
- root->add_child("Threads")->add_child_text (boost::lexical_cast<string> (_threads));
+
}
-/** Create a server description from a string of metadata returned from as_metadata().
- * @param v Metadata.
- * @return ServerDescription, or 0.
- */
-optional<ServerDescription>
-ServerDescription::create_from_metadata (string v)
+Server::~Server ()
{
- vector<string> b;
- split (b, v, is_any_of (N_(" ")));
-
- if (b.size() != 2) {
- return optional<ServerDescription> ();
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ _terminate = true;
}
- return ServerDescription (b[0], atoi (b[1].c_str ()));
+ _acceptor.close ();
+ stop ();
}
-Server::Server (shared_ptr<Log> log)
- : _log (log)
+void
+Server::run ()
{
-
+ start_accept ();
+ _io_service.run ();
}
-int
-Server::process (shared_ptr<Socket> socket)
+void
+Server::start_accept ()
{
- uint32_t length = socket->read_uint32 ();
- scoped_array<char> buffer (new char[length]);
- socket->read (reinterpret_cast<uint8_t*> (buffer.get()), length);
-
- stringstream s (buffer.get());
- shared_ptr<cxml::Document> xml (new cxml::Document ("EncodingRequest"));
- xml->read_stream (s);
- if (xml->number_child<int> ("Version") != SERVER_LINK_VERSION) {
- _log->log ("Mismatched server/client versions");
- return -1;
- }
-
- libdcp::Size size (
- xml->number_child<int> ("Width"), xml->number_child<int> ("Height")
- );
-
- shared_ptr<Image> image (new Image (PIX_FMT_RGB24, size, true));
-
- image->read_from_socket (socket);
- DCPVideoFrame dcp_video_frame (image, xml, _log);
-
- shared_ptr<EncodedData> encoded = dcp_video_frame.encode_locally ();
- try {
- encoded->send (socket);
- } catch (std::exception& e) {
- _log->log (String::compose (
- "Send failed; frame %1, data size %2, pixel format %3, image size %4x%5, %6 components",
- dcp_video_frame.frame(), encoded->size(), image->pixel_format(), image->size().width, image->size().height, image->components()
- )
- );
- throw;
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ if (_terminate) {
+ return;
+ }
}
- return dcp_video_frame.frame ();
+ shared_ptr<Socket> socket (new Socket(_timeout));
+ _acceptor.async_accept (socket->socket (), boost::bind (&Server::handle_accept, this, socket, boost::asio::placeholders::error));
}
void
-Server::worker_thread ()
+Server::handle_accept (shared_ptr<Socket> socket, boost::system::error_code const & error)
{
- while (1) {
- boost::mutex::scoped_lock lock (_worker_mutex);
- while (_queue.empty ()) {
- _worker_condition.wait (lock);
- }
-
- shared_ptr<Socket> socket = _queue.front ();
- _queue.pop_front ();
-
- lock.unlock ();
-
- int frame = -1;
-
- struct timeval start;
- gettimeofday (&start, 0);
-
- try {
- frame = process (socket);
- } catch (std::exception& e) {
- _log->log (String::compose (N_("Error: %1"), e.what()));
- }
-
- socket.reset ();
-
- lock.lock ();
-
- if (frame >= 0) {
- struct timeval end;
- gettimeofday (&end, 0);
- _log->log (String::compose (N_("Encoded frame %1 in %2"), frame, seconds (end) - seconds (start)));
- }
-
- _worker_condition.notify_all ();
+ if (error) {
+ return;
}
+
+ handle (socket);
+ start_accept ();
}
void
-Server::run (int num_threads)
+Server::stop ()
{
- _log->log (String::compose (N_("Server starting with %1 threads"), num_threads));
-
- for (int i = 0; i < num_threads; ++i) {
- _worker_threads.push_back (new thread (bind (&Server::worker_thread, this)));
- }
-
- boost::asio::io_service io_service;
-
- /* Broadcast our presence on our interfaces */
- list<string> interfaces = network_interfaces ();
- for (list<string>::iterator i = interfaces.begin(); i != interfaces.end(); ++i) {
- boost::system::error_code error;
-
- boost::asio::ip::udp::socket socket (io_service);
- socket.open (boost::asio::ip::udp::v4(), error);
- if (error) {
- break;
- }
-
- socket.set_option (boost::asio::ip::udp::socket::reuse_address (true));
- socket.set_option (boost::asio::socket_base::broadcast (true));
-
- boost::asio::ip::udp::endpoint end_point (boost::asio::ip::address_v4::broadcast(), Config::instance()->server_port ());
-
- string const data = DCPOMATIC_HELLO;
- socket.send_to (boost::asio::buffer (data.c_str(), data.size() + 1), end_point);
- socket.close (error);
- }
-
- /* Wait to be given things to do */
- boost::asio::ip::tcp::acceptor acceptor (io_service, boost::asio::ip::tcp::endpoint (boost::asio::ip::tcp::v4(), Config::instance()->server_port ()));
- while (1) {
- shared_ptr<Socket> socket (new Socket);
- acceptor.accept (socket->socket ());
-
- boost::mutex::scoped_lock lock (_worker_mutex);
-
- /* Wait until the queue has gone down a bit */
- while (int (_queue.size()) >= num_threads * 2) {
- _worker_condition.wait (lock);
- }
-
- _queue.push_back (socket);
- _worker_condition.notify_all ();
- }
+ _io_service.stop ();
}
projects / dcpomatic.git / blobdiff