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 #ifdef DCPOMATIC_OSX
 149                         wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER | wxSTAY_ON_TOP
 150 #else
 151                         wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER
 152 #endif
 153                         )
 154         {
 155                 wxFlexGridSizer* state_sizer = new wxFlexGridSizer (2, DCPOMATIC_SIZER_GAP, DCPOMATIC_SIZER_GAP);
 156
 157                 add_label_to_sizer (state_sizer, this, _("Frames per second"), true);
 158                 _fps = new StaticText (this, wxT(""));
 159                 state_sizer->Add (_fps);
 160
 161                 wxFlexGridSizer* log_sizer = new wxFlexGridSizer (1, DCPOMATIC_SIZER_GAP, DCPOMATIC_SIZER_GAP);
 162                 log_sizer->AddGrowableCol (0, 1);
 163
 164                 wxClientDC dc (this);
 165                 wxSize size = dc.GetTextExtent (wxT ("This is the length of the file label it should be quite long"));
 166                 int const height = (size.GetHeight() + 2) * log_lines;
 167                 SetSize (700, height + DCPOMATIC_SIZER_GAP * 2);
 168
 169                 _text = new wxTextCtrl (
 170                         this, wxID_ANY, std_to_wx (server_log->get()), wxDefaultPosition, wxSize (-1, height),
 171                         wxTE_READONLY | wxTE_MULTILINE
 172                         );
 173
 174                 log_sizer->Add (_text, 1, wxEXPAND);
 175
 176                 wxBoxSizer* overall_sizer = new wxBoxSizer (wxVERTICAL);
 177                 overall_sizer->Add (state_sizer, 0, wxALL, DCPOMATIC_SIZER_GAP);
 178                 overall_sizer->Add (log_sizer, 1, wxEXPAND | wxALL, DCPOMATIC_SIZER_GAP);
 179                 SetSizer (overall_sizer);
 180                 overall_sizer->Layout ();
 181
 182                 Bind (wxEVT_TIMER, boost::bind (&StatusDialog::update_state, this));
 183                 _timer.reset (new wxTimer (this));
 184                 _timer->Start (1000);
 185
 186                 server_log->Appended.connect (bind (&StatusDialog::appended, this, _1));
 187                 server_log->Removed.connect (bind (&StatusDialog::removed, this, _1));
 188         }
 189
 190 private:
 191         void appended (string s)
 192         {
 193                 (*_text) << s << "\n";
 194         }
 195
 196         void removed (int n)
 197         {
 198                 _text->Remove (0, n + 1);
 199         }
 200
 201         void update_state ()
 202         {
 203                 _fps->SetLabel (wxString::Format ("%.1f", server_log->fps()));
 204         }
 205
 206         wxTextCtrl* _text;
 207         wxStaticText* _fps;
 208         boost::shared_ptr<wxTimer> _timer;
 209 };
 210
 211 class TaskBarIcon : public wxTaskBarIcon
 212 {
 213 public:
 214         TaskBarIcon ()
 215                 : _status (0)
 216         {
 217 #ifdef DCPOMATIC_WINDOWS
 218                 wxIcon icon (std_to_wx ("id"));
 219 #else
 220                 wxBitmap bitmap (wxString::Format (wxT ("%s/dcpomatic_small.png"), std_to_wx (shared_path().string())), wxBITMAP_TYPE_PNG);
 221                 wxIcon icon;
 222                 icon.CopyFromBitmap (bitmap);
 223 #endif
 224
 225                 SetIcon (icon, std_to_wx ("DCP-o-matic Encode Server"));
 226
 227                 Bind (wxEVT_MENU, boost::bind (&TaskBarIcon::status, this), ID_status);
 228                 Bind (wxEVT_MENU, boost::bind (&TaskBarIcon::quit, this), ID_quit);
 229         }
 230
 231         wxMenu* CreatePopupMenu ()
 232         {
 233                 wxMenu* menu = new wxMenu;
 234                 menu->Append (ID_status, std_to_wx ("Status..."));
 235                 menu->Append (ID_quit, std_to_wx ("Quit"));
 236                 return menu;
 237         }
 238
 239 private:
 240         void status ()
 241         {
 242                 if (!_status) {
 243                         _status = new StatusDialog ();
 244                 }
 245                 _status->Show ();
 246         }
 247
 248         void quit ()
 249         {
 250                 wxTheApp->ExitMainLoop ();
 251         }
 252
 253         StatusDialog* _status;
 254 };
 255
 256 class App : public wxApp, public ExceptionStore
 257 {
 258 public:
 259         App ()
 260                 : wxApp ()
 261                 , _thread (0)
 262                 , _icon (0)
 263         {}
 264
 265 private:
 266
 267         bool OnInit ()
 268         {
 269                 if (!wxApp::OnInit ()) {
 270                         return false;
 271                 }
 272
 273                 wxInitAllImageHandlers ();
 274
 275                 server_log.reset (new ServerLog);
 276                 server_log->set_types (LogEntry::TYPE_GENERAL | LogEntry::TYPE_WARNING | LogEntry::TYPE_ERROR);
 277                 dcpomatic_log = server_log;
 278
 279                 Config::FailedToLoad.connect (boost::bind (&App::config_failed_to_load, this));
 280                 Config::Warning.connect (boost::bind (&App::config_warning, this, _1));
 281
 282                 wxSplashScreen* splash = maybe_show_splash ();
 283
 284                 dcpomatic_setup_path_encoding ();
 285                 dcpomatic_setup_i18n ();
 286                 dcpomatic_setup ();
 287                 Config::drop ();
 288
 289                 signal_manager = new wxSignalManager (this);
 290                 Bind (wxEVT_IDLE, boost::bind (&App::idle, this));
 291
 292                 /* Bad things happen (on Linux at least) if the config is reloaded by main_thread;
 293                    it seems like there's a race which results in the locked_sstream mutex being
 294                    locked before it is initialised.  Calling Config::instance() here loads the config
 295                    again in this thread, which seems to work around the problem.
 296                 */
 297                 Config::instance();
 298
 299 #ifdef DCPOMATIC_LINUX
 300                 StatusDialog* d = new StatusDialog ();
 301                 d->Show ();
 302 #else
 303                 _icon = new TaskBarIcon;
 304 #endif
 305                 _thread = new thread (bind (&App::main_thread, this));
 306
 307                 Bind (wxEVT_TIMER, boost::bind (&App::check, this));
 308                 _timer.reset (new wxTimer (this));
 309                 _timer->Start (1000);
 310
 311                 if (splash) {
 312                         splash->Destroy ();
 313                 }
 314
 315                 SetExitOnFrameDelete (false);
 316
 317                 return true;
 318         }
 319
 320         int OnExit ()
 321         {
 322                 delete _icon;
 323                 return wxApp::OnExit ();
 324         }
 325
 326         void main_thread ()
 327         try {
 328                 EncodeServer server (false, Config::instance()->server_encoding_threads());
 329                 server.run ();
 330         } catch (...) {
 331                 store_current ();
 332         }
 333
 334         void check ()
 335         {
 336                 try {
 337                         rethrow ();
 338                 } catch (exception& e) {
 339                         error_dialog (0, std_to_wx (e.what ()));
 340                         wxTheApp->ExitMainLoop ();
 341                 } catch (...) {
 342                         error_dialog (0, _("An unknown error has occurred with the DCP-o-matic server."));
 343                         wxTheApp->ExitMainLoop ();
 344                 }
 345         }
 346
 347         void idle ()
 348         {
 349                 signal_manager->ui_idle ();
 350         }
 351
 352         void config_failed_to_load ()
 353         {
 354                 message_dialog (0, _("The existing configuration failed to load.  Default values will be used instead.  These may take a short time to create."));
 355         }
 356
 357         void config_warning (string m)
 358         {
 359                 message_dialog (0, std_to_wx (m));
 360         }
 361
 362         boost::thread* _thread;
 363         TaskBarIcon* _icon;
 364         shared_ptr<wxTimer> _timer;
 365 };
 366
 367 IMPLEMENT_APP (App)