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