X-Git-Url: https://main.carlh.net/gitweb/?p=dcpomatic.git;a=blobdiff_plain;f=src%2Flib%2Fserver.cc;h=09e0a4bd0524cf91c6a4db010859713bda2d081f;hp=bf7541c3379f1f294f735f4c130b06994b0311d8;hb=a8a0dfd1b21de6c0facf965ab119833ff6f790bf;hpb=cfdd68eb5fb0ef8423e860103ad4e5510994f1da diff --git a/src/lib/server.cc b/src/lib/server.cc index bf7541c33..09e0a4bd0 100644 --- a/src/lib/server.cc +++ b/src/lib/server.cc @@ -1,267 +1,72 @@ /* - Copyright (C) 2012 Carl Hetherington + Copyright (C) 2012-2015 Carl Hetherington - 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 . */ -/** @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 -#include -#include -#include -#include -#include -#include -#include #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 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 boost::lexical_cast; -using dcp::Size; -Server::Server (shared_ptr log, bool verbose) - : _log (log) - , _verbose (verbose) +Server::Server (int port) + : _terminate (false) + , _acceptor (_io_service, boost::asio::ip::tcp::endpoint (boost::asio::ip::tcp::v4(), port)) { } -/** @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, struct timeval& after_read, struct timeval& after_encode) +Server::~Server () { - uint32_t length = socket->read_uint32 (); - scoped_array buffer (new char[length]); - socket->read (reinterpret_cast (buffer.get()), length); - - stringstream s (buffer.get()); - shared_ptr xml (new cxml::Document ("EncodingRequest")); - xml->read_stream (s); - if (xml->number_child ("Version") != SERVER_LINK_VERSION) { - cerr << "Mismatched server/client versions\n"; - _log->log ("Mismatched server/client versions"); - return -1; - } - - dcp::Size size ( - xml->number_child ("Width"), xml->number_child ("Height") - ); - - shared_ptr image (new Image (PIX_FMT_RGB24, size, true)); - - image->read_from_socket (socket); - DCPVideoFrame dcp_video_frame (image, xml, _log); - - gettimeofday (&after_read, 0); - - shared_ptr encoded = dcp_video_frame.encode_locally (); - - gettimeofday (&after_encode, 0); - - 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; - } - - return dcp_video_frame.frame (); + boost::mutex::scoped_lock lm (_mutex); + _terminate = true; + _io_service.stop (); } void -Server::worker_thread () +Server::run () { - while (1) { - boost::mutex::scoped_lock lock (_worker_mutex); - while (_queue.empty ()) { - _worker_condition.wait (lock); - } - - shared_ptr 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) { - _log->log (String::compose ("Error: %1", e.what())); - } - - gettimeofday (&end, 0); - - socket.reset (); - - lock.lock (); - - if (frame >= 0) { - struct timeval end; - gettimeofday (&end, 0); - - stringstream 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->log (message.str ()); - } - - _worker_condition.notify_all (); - } + start_accept (); + _io_service.run (); } void -Server::run (int num_threads) +Server::start_accept () { - _log->log (String::compose ("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)); - - boost::asio::io_service io_service; - - boost::asio::ip::tcp::acceptor acceptor ( - io_service, - boost::asio::ip::tcp::endpoint (boost::asio::ip::tcp::v4(), Config::instance()->server_port_base ()) - ); - - while (1) { - shared_ptr 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); + { + boost::mutex::scoped_lock lm (_mutex); + if (_terminate) { + return; } - - _queue.push_back (socket); - _worker_condition.notify_all (); } -} - -void -Server::broadcast_thread () -try -{ - boost::asio::io_service io_service; - 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 (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) - ); - - io_service.run (); -} -catch (...) -{ - store_current (); + shared_ptr socket (new Socket); + _acceptor.async_accept (socket->socket (), boost::bind (&Server::handle_accept, this, socket, boost::asio::placeholders::error)); } void -Server::broadcast_received () +Server::handle_accept (shared_ptr socket, boost::system::error_code const & error) { - _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 (lexical_cast (_worker_threads.size ())); - stringstream xml; - doc.write_to_stream (xml, "UTF-8"); - - shared_ptr socket (new Socket); - try { - socket->connect (boost::asio::ip::tcp::endpoint (_broadcast.send_endpoint.address(), Config::instance()->server_port_base() + 1)); - socket->write (xml.str().length() + 1); - socket->write ((uint8_t *) xml.str().c_str(), xml.str().length() + 1); - } catch (...) { - - } + if (error) { + return; } - - _broadcast.socket->async_receive_from ( - boost::asio::buffer (_broadcast.buffer, sizeof (_broadcast.buffer)), - _broadcast.send_endpoint, boost::bind (&Server::broadcast_received, this) - ); + + handle (socket); + start_accept (); }