X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fserver.cc;h=79840c25bb2701bebc57f010fe764ae6c08348b0;hb=e60bb3e51bd1508b149e6b8f6608f09b5196ae26;hp=c4c98a4c9f0ea6da1106e1c3f3b46dad959883c4;hpb=71d8cf20889a3c419c9a3e485f461236e5317423;p=dcpomatic.git diff --git a/src/lib/server.cc b/src/lib/server.cc index c4c98a4c9..79840c25b 100644 --- a/src/lib/server.cc +++ b/src/lib/server.cc @@ -22,32 +22,31 @@ * 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 "dcpomatic_socket.h" #include "image.h" -#include "dcp_video_frame.h" +#include "dcp_video.h" #include "config.h" #include "cross.h" -#include "player_video_frame.h" +#include "player_video.h" +#include "data.h" +#include "safe_stringstream.h" +#include "raw_convert.h" +#include +#include +#include +#include +#include +#include #include "i18n.h" -#define LOG_GENERAL(...) _log->microsecond_log (String::compose (__VA_ARGS__), Log::GENERAL); -#define LOG_GENERAL_NC(...) _log->microsecond_log (__VA_ARGS__, Log::GENERAL); -#define LOG_ERROR(...) _log->microsecond_log (String::compose (__VA_ARGS__), Log::ERROR); -#define LOG_ERROR_NC(...) _log->microsecond_log (__VA_ARGS__, Log::ERROR); +#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::stringstream; using std::multimap; using std::vector; using std::list; @@ -62,16 +61,36 @@ using boost::thread; using boost::bind; using boost::scoped_array; using boost::optional; -using libdcp::Size; -using libdcp::raw_convert; +using dcp::Size; Server::Server (shared_ptr log, bool verbose) - : _log (log) + : _terminate (false) + , _log (log) , _verbose (verbose) + , _acceptor (_io_service, boost::asio::ip::tcp::endpoint (boost::asio::ip::tcp::v4(), Config::instance()->server_port_base())) { } +Server::~Server () +{ + { + boost::mutex::scoped_lock lm (_worker_mutex); + _terminate = true; + _empty_condition.notify_all (); + } + + for (vector::iterator i = _worker_threads.begin(); i != _worker_threads.end(); ++i) { + (*i)->join (); + delete *i; + } + + _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. */ @@ -82,28 +101,33 @@ Server::process (shared_ptr socket, struct timeval& after_read, struct t scoped_array buffer (new char[length]); socket->read (reinterpret_cast (buffer.get()), length); - stringstream s (buffer.get()); + string s (buffer.get()); shared_ptr xml (new cxml::Document ("EncodingRequest")); - xml->read_stream (s); + xml->read_string (s); + /* This is a double-check; the server shouldn't even be on the candidate list + if it is the wrong version, but it doesn't hurt to make sure here. + */ if (xml->number_child ("Version") != SERVER_LINK_VERSION) { cerr << "Mismatched server/client versions\n"; LOG_ERROR_NC ("Mismatched server/client versions"); return -1; } - shared_ptr pvf (new PlayerVideoFrame (xml, socket, _log)); + shared_ptr pvf (new PlayerVideo (xml, socket)); - DCPVideoFrame dcp_video_frame (pvf, xml, _log); + DCPVideo dcp_video_frame (pvf, xml, _log); gettimeofday (&after_read, 0); - - shared_ptr encoded = dcp_video_frame.encode_locally (); + + Data encoded = dcp_video_frame.encode_locally (boost::bind (&Log::dcp_log, _log.get(), _1, _2)); gettimeofday (&after_encode, 0); - + try { - encoded->send (socket); + socket->write (encoded.size ()); + socket->write (encoded.data ().get (), encoded.size ()); } catch (std::exception& e) { + cerr << "Send failed; frame " << dcp_video_frame.index() << "\n"; LOG_ERROR ("Send failed; frame %1", dcp_video_frame.index()); throw; } @@ -114,15 +138,19 @@ Server::process (shared_ptr socket, struct timeval& after_read, struct t void Server::worker_thread () { - while (1) { + while (true) { boost::mutex::scoped_lock lock (_worker_mutex); - while (_queue.empty ()) { - _worker_condition.wait (lock); + while (_queue.empty () && !_terminate) { + _empty_condition.wait (lock); + } + + if (_terminate) { + return; } shared_ptr socket = _queue.front (); _queue.pop_front (); - + lock.unlock (); int frame = -1; @@ -132,42 +160,43 @@ Server::worker_thread () 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); - stringstream message; + 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 ()); } - - _worker_condition.notify_all (); + + _full_condition.notify_all (); } } @@ -178,46 +207,25 @@ Server::run (int 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); - } - - _queue.push_back (socket); - _worker_condition.notify_all (); - } + start_accept (); + _io_service.run (); } 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 = new boost::asio::ip::udp::socket (_broadcast.io_service); _broadcast.socket->open (listen_endpoint.protocol ()); _broadcast.socket->bind (listen_endpoint); @@ -227,7 +235,7 @@ try boost::bind (&Server::broadcast_received, this) ); - io_service.run (); + _broadcast.io_service.run (); } catch (...) { @@ -244,21 +252,56 @@ Server::broadcast_received () xmlpp::Document doc; xmlpp::Element* root = doc.create_root_node ("ServerAvailable"); root->add_child("Threads")->add_child_text (raw_convert (_worker_threads.size ())); - stringstream xml; - doc.write_to_stream (xml, "UTF-8"); + root->add_child("Version")->add_child_text (raw_convert (SERVER_LINK_VERSION)); + 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 (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); + 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; + } + + shared_ptr socket (new Socket); + _acceptor.async_accept (socket->socket (), boost::bind (&Server::handle_accept, this, socket, boost::asio::placeholders::error)); +} + +void +Server::handle_accept (shared_ptr socket, boost::system::error_code const & error) +{ + if (error) { + 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 (); + + start_accept (); +} +