/*
- Copyright (C) 2012-2014 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 "server.h"
#include "dcpomatic_socket.h"
-#include "image.h"
-#include "dcp_video.h"
-#include "config.h"
-#include "cross.h"
-#include "player_video.h"
-#include "encoded_data.h"
-#include "safe_stringstream.h"
-#include <dcp/raw_convert.h>
-#include <libcxml/cxml.h>
-#include <boost/algorithm/string.hpp>
-#include <boost/scoped_array.hpp>
-#include <string>
-#include <vector>
-#include <iostream>
#include "i18n.h"
-#define LOG_GENERAL(...) _log->log (String::compose (__VA_ARGS__), Log::TYPE_GENERAL);
-#define LOG_GENERAL_NC(...) _log->log (__VA_ARGS__, Log::TYPE_GENERAL);
-#define LOG_ERROR(...) _log->log (String::compose (__VA_ARGS__), Log::TYPE_ERROR);
-#define LOG_ERROR_NC(...) _log->log (__VA_ARGS__, Log::TYPE_ERROR);
-
-using std::string;
-using std::multimap;
-using std::vector;
-using std::list;
-using std::cout;
-using std::cerr;
-using std::setprecision;
-using std::fixed;
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 dcp::Size;
-using dcp::raw_convert;
-Server::Server (shared_ptr<Log> log, bool verbose)
+Server::Server (int port)
: _terminate (false)
- , _log (log)
- , _verbose (verbose)
- , _acceptor (_io_service, boost::asio::ip::tcp::endpoint (boost::asio::ip::tcp::v4(), Config::instance()->server_port_base()))
+ , _acceptor (_io_service, boost::asio::ip::tcp::endpoint (boost::asio::ip::tcp::v4(), port))
{
}
Server::~Server ()
{
- {
- boost::mutex::scoped_lock lm (_worker_mutex);
- _terminate = true;
- _empty_condition.notify_all ();
- }
-
- for (vector<boost::thread*>::iterator i = _worker_threads.begin(); i != _worker_threads.end(); ++i) {
- (*i)->join ();
- delete *i;
- }
-
+ boost::mutex::scoped_lock lm (_mutex);
+ _terminate = true;
_io_service.stop ();
-
- _broadcast.io_service.stop ();
- _broadcast.thread->join ();
-}
-
-/** @param after_read Filled in with gettimeofday() after reading the input from the network.
- * @param after_encode Filled in with gettimeofday() after encoding the image.
- */
-int
-Server::process (shared_ptr<Socket> socket, struct timeval& after_read, struct timeval& after_encode)
-{
- uint32_t length = socket->read_uint32 ();
- scoped_array<char> buffer (new char[length]);
- socket->read (reinterpret_cast<uint8_t*> (buffer.get()), length);
-
- string s (buffer.get());
- shared_ptr<cxml::Document> xml (new cxml::Document ("EncodingRequest"));
- xml->read_string (s);
- if (xml->number_child<int> ("Version") != SERVER_LINK_VERSION) {
- cerr << "Mismatched server/client versions\n";
- LOG_ERROR_NC ("Mismatched server/client versions");
- return -1;
- }
-
- shared_ptr<PlayerVideo> pvf (new PlayerVideo (xml, socket));
-
- DCPVideo dcp_video_frame (pvf, xml, _log);
-
- gettimeofday (&after_read, 0);
-
- shared_ptr<EncodedData> encoded = dcp_video_frame.encode_locally (boost::bind (&Log::dcp_log, _log.get(), _1, _2));
-
- gettimeofday (&after_encode, 0);
-
- try {
- encoded->send (socket);
- } catch (std::exception& e) {
- cerr << "Send failed; frame " << dcp_video_frame.index() << "\n";
- LOG_ERROR ("Send failed; frame %1", dcp_video_frame.index());
- throw;
- }
-
- return dcp_video_frame.index ();
}
void
-Server::worker_thread ()
+Server::run ()
{
- while (true) {
- boost::mutex::scoped_lock lock (_worker_mutex);
- while (_queue.empty () && !_terminate) {
- _empty_condition.wait (lock);
- }
-
- if (_terminate) {
- return;
- }
-
- shared_ptr<Socket> socket = _queue.front ();
- _queue.pop_front ();
-
- lock.unlock ();
-
- int frame = -1;
- string ip;
-
- struct timeval start;
- struct timeval after_read;
- struct timeval after_encode;
- struct timeval end;
-
- gettimeofday (&start, 0);
-
- try {
- frame = process (socket, after_read, after_encode);
- ip = socket->socket().remote_endpoint().address().to_string();
- } catch (std::exception& e) {
- cerr << "Error: " << e.what() << "\n";
- LOG_ERROR ("Error: %1", e.what());
- }
-
- gettimeofday (&end, 0);
-
- socket.reset ();
-
- lock.lock ();
-
- if (frame >= 0) {
- struct timeval end;
- gettimeofday (&end, 0);
-
- SafeStringStream message;
- message.precision (2);
- message << fixed
- << "Encoded frame " << frame << " from " << ip << ": "
- << "receive " << (seconds(after_read) - seconds(start)) << "s "
- << "encode " << (seconds(after_encode) - seconds(after_read)) << "s "
- << "send " << (seconds(end) - seconds(after_encode)) << "s.";
-
- if (_verbose) {
- cout << message.str() << "\n";
- }
-
- LOG_GENERAL_NC (message.str ());
- }
-
- _full_condition.notify_all ();
- }
-}
-
-void
-Server::run (int num_threads)
-{
- LOG_GENERAL ("Server starting with %1 threads", num_threads);
- if (_verbose) {
- cout << "DCP-o-matic server starting with " << num_threads << " threads.\n";
- }
-
- for (int i = 0; i < num_threads; ++i) {
- _worker_threads.push_back (new thread (bind (&Server::worker_thread, this)));
- }
-
- _broadcast.thread = new thread (bind (&Server::broadcast_thread, this));
-
start_accept ();
_io_service.run ();
}
-void
-Server::broadcast_thread ()
-try
-{
- boost::asio::ip::address address = boost::asio::ip::address_v4::any ();
- boost::asio::ip::udp::endpoint listen_endpoint (address, Config::instance()->server_port_base() + 1);
-
- _broadcast.socket = new boost::asio::ip::udp::socket (_broadcast.io_service);
- _broadcast.socket->open (listen_endpoint.protocol ());
- _broadcast.socket->bind (listen_endpoint);
-
- _broadcast.socket->async_receive_from (
- boost::asio::buffer (_broadcast.buffer, sizeof (_broadcast.buffer)),
- _broadcast.send_endpoint,
- boost::bind (&Server::broadcast_received, this)
- );
-
- _broadcast.io_service.run ();
-}
-catch (...)
-{
- store_current ();
-}
-
-void
-Server::broadcast_received ()
-{
- _broadcast.buffer[sizeof(_broadcast.buffer) - 1] = '\0';
-
- if (strcmp (_broadcast.buffer, DCPOMATIC_HELLO) == 0) {
- /* Reply to the client saying what we can do */
- xmlpp::Document doc;
- xmlpp::Element* root = doc.create_root_node ("ServerAvailable");
- root->add_child("Threads")->add_child_text (raw_convert<string> (_worker_threads.size ()));
- string xml = doc.write_to_string ("UTF-8");
-
- if (_verbose) {
- cout << "Offering services to master " << _broadcast.send_endpoint.address().to_string () << "\n";
- }
- shared_ptr<Socket> socket (new Socket);
- try {
- socket->connect (boost::asio::ip::tcp::endpoint (_broadcast.send_endpoint.address(), Config::instance()->server_port_base() + 1));
- socket->write (xml.length() + 1);
- socket->write ((uint8_t *) xml.c_str(), xml.length() + 1);
- } catch (...) {
-
- }
- }
-
- _broadcast.socket->async_receive_from (
- boost::asio::buffer (_broadcast.buffer, sizeof (_broadcast.buffer)),
- _broadcast.send_endpoint, boost::bind (&Server::broadcast_received, this)
- );
-}
-
void
Server::start_accept ()
{
- if (_terminate) {
- return;
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ if (_terminate) {
+ return;
+ }
}
shared_ptr<Socket> socket (new Socket);
return;
}
- boost::mutex::scoped_lock lock (_worker_mutex);
-
- /* Wait until the queue has gone down a bit */
- while (_queue.size() >= _worker_threads.size() * 2 && !_terminate) {
- _full_condition.wait (lock);
- }
-
- _queue.push_back (socket);
- _empty_condition.notify_all ();
-
+ handle (socket);
start_accept ();
}
-
projects / dcpomatic.git / blobdiff