src/tools/dcpomatic_server.cc

   1 /*
   2     Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
   3
   4     This file is part of DCP-o-matic.
   5
   6     DCP-o-matic is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     DCP-o-matic is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 */
  20
  21 #include "wx/wx_util.h"
  22 #include "wx/wx_signal_manager.h"
  23 #include "wx/static_text.h"
  24 #include "lib/util.h"
  25 #include "lib/encoded_log_entry.h"
  26 #include "lib/encode_server.h"
  27 #include "lib/config.h"
  28 #include "lib/log.h"
  29 #include "lib/signaller.h"
  30 #include "lib/cross.h"
  31 #include "lib/dcpomatic_log.h"
  32 #include "lib/warnings.h"
  33 DCPOMATIC_DISABLE_WARNINGS
  34 #include <wx/taskbar.h>
  35 #include <wx/splash.h>
  36 #include <wx/icon.h>
  37 DCPOMATIC_ENABLE_WARNINGS
  38 #include <boost/thread.hpp>
  39 #include <boost/optional.hpp>
  40 #include <iostream>
  41
  42 using std::cout;
  43 using std::string;
  44 using std::exception;
  45 using std::list;
  46 using std::fixed;
  47 using std::setprecision;
  48 using std::shared_ptr;
  49 using boost::thread;
  50 using boost::bind;
  51 using boost::optional;
  52 using std::dynamic_pointer_cast;
  53 #if BOOST_VERSION >= 106100
  54 using namespace boost::placeholders;
  55 #endif
  56
  57 enum {
  58         ID_status = 1,
  59         ID_quit,
  60         ID_timer
  61 };
  62
  63 static unsigned int const log_lines = 32;
  64
  65
  66 class ServerLog : public Log, public Signaller
  67 {
  68 public:
  69         ServerLog ()
  70                 : _fps (0)
  71         {}
  72
  73         string get () const {
  74                 string a;
  75                 for (auto const& i: _log) {
  76                         a += i + "\n";
  77                 }
  78                 return a;
  79         }
  80
  81         float fps () const {
  82                 boost::mutex::scoped_lock lm (_state_mutex);
  83                 return _fps;
  84         }
  85
  86         boost::signals2::signal<void(string)> Appended;
  87         boost::signals2::signal<void(int)> Removed;
  88
  89 private:
  90         void do_log (shared_ptr<const LogEntry> entry)
  91         {
  92                 time_t const s = entry->seconds ();
  93                 struct tm* local = localtime (&s);
  94                 if (
  95                         !_last_time ||
  96                         local->tm_yday != _last_time->tm_yday ||
  97                         local->tm_year != _last_time->tm_year ||
  98                         local->tm_hour != _last_time->tm_hour ||
  99                         local->tm_min != _last_time->tm_min
 100                         ) {
 101                         char buffer[64];
 102                         strftime (buffer, 64, "%c", local);
 103                         append (buffer);
 104                 }
 105
 106                 append (entry->message ());
 107                 if (_log.size() > log_lines) {
 108                         emit (boost::bind (boost::ref (Removed), _log.front().length()));
 109                         _log.pop_front ();
 110                 }
 111                 _last_time = *local;
 112
 113                 auto encoded = dynamic_pointer_cast<const EncodedLogEntry> (entry);
 114                 if (encoded) {
 115                         _history.push_back (encoded->seconds ());
 116                         if (_history.size() > 48) {
 117                                 _history.pop_front ();
 118                         }
 119                         if (_history.size() > 2) {
 120                                 boost::mutex::scoped_lock lm (_state_mutex);
 121                                 _fps = _history.size() / (_history.back() - _history.front());
 122                         }
 123                 }
 124         }
 125
 126         void append (string s)
 127         {
 128                 _log.push_back (s);
 129                 emit (boost::bind(boost::ref(Appended), s));
 130         }
 131
 132         list<string> _log;
 133         optional<struct tm> _last_time;
 134         std::list<double> _history;
 135
 136         mutable boost::mutex _state_mutex;
 137         float _fps;
 138 };
 139
 140
 141 static shared_ptr<ServerLog> server_log;
 142
 143
 144 class StatusDialog : public wxDialog
 145 {
 146 public:
 147         StatusDialog ()
 148                 : wxDialog (
 149                         nullptr, wxID_ANY, _("DCP-o-matic Encode Server"),
 150                         wxDefaultPosition, wxDefaultSize,
 151 #ifdef DCPOMATIC_OSX
 152                         wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER | wxSTAY_ON_TOP
 153 #else
 154                         wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER
 155 #endif
 156                         )
 157         {
 158                 auto state_sizer = new wxFlexGridSizer (2, DCPOMATIC_SIZER_GAP, DCPOMATIC_SIZER_GAP);
 159
 160                 add_label_to_sizer (state_sizer, this, _("Frames per second"), true);
 161                 _fps = new StaticText (this, wxT(""));
 162                 state_sizer->Add (_fps);
 163
 164                 auto log_sizer = new wxFlexGridSizer (1, DCPOMATIC_SIZER_GAP, DCPOMATIC_SIZER_GAP);
 165                 log_sizer->AddGrowableCol (0, 1);
 166
 167                 wxClientDC dc (this);
 168                 wxSize size = dc.GetTextExtent (wxT ("This is the length of the file label it should be quite long"));
 169                 int const height = (size.GetHeight() + 2) * log_lines;
 170                 SetSize (700, height + DCPOMATIC_SIZER_GAP * 2);
 171
 172                 _text = new wxTextCtrl (
 173                         this, wxID_ANY, std_to_wx (server_log->get()), wxDefaultPosition, wxSize (-1, height),
 174                         wxTE_READONLY | wxTE_MULTILINE
 175                         );
 176
 177                 log_sizer->Add (_text, 1, wxEXPAND);
 178
 179                 wxBoxSizer* overall_sizer = new wxBoxSizer (wxVERTICAL);
 180                 overall_sizer->Add (state_sizer, 0, wxALL, DCPOMATIC_SIZER_GAP);
 181                 overall_sizer->Add (log_sizer, 1, wxEXPAND | wxALL, DCPOMATIC_SIZER_GAP);
 182                 SetSizer (overall_sizer);
 183                 overall_sizer->Layout ();
 184
 185                 Bind (wxEVT_TIMER, boost::bind (&StatusDialog::update_state, this));
 186                 _timer.reset (new wxTimer (this));
 187                 _timer->Start (1000);
 188
 189                 server_log->Appended.connect (bind (&StatusDialog::appended, this, _1));
 190                 server_log->Removed.connect (bind (&StatusDialog::removed, this, _1));
 191         }
 192
 193 private:
 194         void appended (string s)
 195         {
 196                 (*_text) << s << "\n";
 197         }
 198
 199         void removed (int n)
 200         {
 201                 _text->Remove (0, n + 1);
 202         }
 203
 204         void update_state ()
 205         {
 206                 _fps->SetLabel (wxString::Format ("%.1f", server_log->fps()));
 207         }
 208
 209         wxTextCtrl* _text;
 210         wxStaticText* _fps;
 211         std::shared_ptr<wxTimer> _timer;
 212 };
 213
 214 class TaskBarIcon : public wxTaskBarIcon
 215 {
 216 public:
 217         TaskBarIcon ()
 218         {
 219 #ifdef DCPOMATIC_WINDOWS
 220                 wxIcon icon (std_to_wx ("id"));
 221 #else
 222                 wxBitmap bitmap (bitmap_path("dcpomatic_small_black"), wxBITMAP_TYPE_PNG);
 223                 wxIcon icon;
 224                 icon.CopyFromBitmap (bitmap);
 225 #endif
 226
 227                 SetIcon (icon, std_to_wx ("DCP-o-matic Encode Server"));
 228
 229                 Bind (wxEVT_MENU, boost::bind (&TaskBarIcon::status, this), ID_status);
 230                 Bind (wxEVT_MENU, boost::bind (&TaskBarIcon::quit, this), ID_quit);
 231         }
 232
 233         wxMenu* CreatePopupMenu ()
 234         {
 235                 auto menu = new wxMenu;
 236                 menu->Append (ID_status, std_to_wx ("Status..."));
 237                 menu->Append (ID_quit, std_to_wx ("Quit"));
 238                 return menu;
 239         }
 240
 241 private:
 242         void status ()
 243         {
 244                 if (!_status) {
 245                         _status = new StatusDialog ();
 246                 }
 247                 _status->Show ();
 248         }
 249
 250         void quit ()
 251         {
 252                 wxTheApp->ExitMainLoop ();
 253         }
 254
 255         StatusDialog* _status;
 256 };
 257
 258
 259 class App : public wxApp, public ExceptionStore
 260 {
 261 public:
 262         App ()
 263                 : wxApp ()
 264         {}
 265
 266 private:
 267
 268         bool OnInit ()
 269         {
 270                 if (!wxApp::OnInit()) {
 271                         return false;
 272                 }
 273
 274                 wxInitAllImageHandlers ();
 275
 276                 server_log.reset (new ServerLog);
 277                 server_log->set_types (LogEntry::TYPE_GENERAL | LogEntry::TYPE_WARNING | LogEntry::TYPE_ERROR);
 278                 dcpomatic_log = server_log;
 279
 280                 Config::FailedToLoad.connect (boost::bind (&App::config_failed_to_load, this));
 281                 Config::Warning.connect (boost::bind (&App::config_warning, this, _1));
 282
 283                 auto splash = maybe_show_splash ();
 284
 285                 dcpomatic_setup_path_encoding ();
 286                 dcpomatic_setup_i18n ();
 287                 dcpomatic_setup ();
 288                 Config::drop ();
 289
 290                 signal_manager = new wxSignalManager (this);
 291                 Bind (wxEVT_IDLE, boost::bind (&App::idle, this));
 292
 293                 /* Bad things happen (on Linux at least) if the config is reloaded by main_thread;
 294                    it seems like there's a race which results in the locked_sstream mutex being
 295                    locked before it is initialised.  Calling Config::instance() here loads the config
 296                    again in this thread, which seems to work around the problem.
 297                 */
 298                 Config::instance();
 299
 300 #ifdef DCPOMATIC_LINUX
 301                 StatusDialog* d = new StatusDialog ();
 302                 d->Show ();
 303 #else
 304                 _icon = new TaskBarIcon;
 305 #endif
 306                 _thread = thread (bind (&App::main_thread, this));
 307
 308                 Bind (wxEVT_TIMER, boost::bind (&App::check, this));
 309                 _timer.reset (new wxTimer (this));
 310                 _timer->Start (1000);
 311
 312                 if (splash) {
 313                         splash->Destroy ();
 314                 }
 315
 316                 SetExitOnFrameDelete (false);
 317
 318                 return true;
 319         }
 320
 321         int OnExit ()
 322         {
 323                 delete _icon;
 324                 return wxApp::OnExit ();
 325         }
 326
 327         void main_thread ()
 328         try {
 329                 EncodeServer server (false, Config::instance()->server_encoding_threads());
 330                 server.run ();
 331         } catch (...) {
 332                 store_current ();
 333         }
 334
 335         void check ()
 336         {
 337                 try {
 338                         rethrow ();
 339                 } catch (exception& e) {
 340                         error_dialog (nullptr, std_to_wx(e.what()));
 341                         wxTheApp->ExitMainLoop ();
 342                 } catch (...) {
 343                         error_dialog (nullptr, _("An unknown error has occurred with the DCP-o-matic server."));
 344                         wxTheApp->ExitMainLoop ();
 345                 }
 346         }
 347
 348         void idle ()
 349         {
 350                 signal_manager->ui_idle ();
 351         }
 352
 353         void config_failed_to_load ()
 354         {
 355                 message_dialog (nullptr, _("The existing configuration failed to load.  Default values will be used instead.  These may take a short time to create."));
 356         }
 357
 358         void config_warning (string m)
 359         {
 360                 message_dialog (nullptr, std_to_wx(m));
 361         }
 362
 363         boost::thread _thread;
 364         TaskBarIcon* _icon = nullptr;
 365         shared_ptr<wxTimer> _timer;
 366 };
 367
 368 IMPLEMENT_APP (App)