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 #if BOOST_VERSION >= 106100
  52 using namespace boost::placeholders;
  53 #endif
  54
  55 enum {
  56         ID_status = 1,
  57         ID_quit,
  58         ID_timer
  59 };
  60
  61 static unsigned int const log_lines = 32;
  62
  63 class ServerLog : public Log, public Signaller
  64 {
  65 public:
  66         ServerLog ()
  67                 : _fps (0)
  68         {}
  69
  70         string get () const {
  71                 string a;
  72                 BOOST_FOREACH (string const & i, _log) {
  73                         a += i + "\n";
  74                 }
  75                 return a;
  76         }
  77
  78         string head_and_tail (int) const {
  79                 /* Not necessary */
  80                 return "";
  81         }
  82
  83         float fps () const {
  84                 boost::mutex::scoped_lock lm (_state_mutex);
  85                 return _fps;
  86         }
  87
  88         boost::signals2::signal<void(string)> Appended;
  89         boost::signals2::signal<void(int)> Removed;
  90
  91 private:
  92         void do_log (shared_ptr<const LogEntry> entry)
  93         {
  94                 time_t const s = entry->seconds ();
  95                 struct tm* local = localtime (&s);
  96                 if (
  97                         !_last_time ||
  98                         local->tm_yday != _last_time->tm_yday ||
  99                         local->tm_year != _last_time->tm_year ||
 100                         local->tm_hour != _last_time->tm_hour ||
 101                         local->tm_min != _last_time->tm_min
 102                         ) {
 103                         char buffer[64];
 104                         strftime (buffer, 64, "%c", local);
 105                         append (buffer);
 106                 }
 107
 108                 append (entry->message ());
 109                 if (_log.size() > log_lines) {
 110                         emit (boost::bind (boost::ref (Removed), _log.front().length()));
 111                         _log.pop_front ();
 112                 }
 113                 _last_time = *local;
 114
 115                 shared_ptr<const EncodedLogEntry> encoded = dynamic_pointer_cast<const EncodedLogEntry> (entry);
 116                 if (encoded) {
 117                         _history.push_back (encoded->seconds ());
 118                         if (_history.size() > 48) {
 119                                 _history.pop_front ();
 120                         }
 121                         if (_history.size() > 2) {
 122                                 boost::mutex::scoped_lock lm (_state_mutex);
 123                                 _fps = _history.size() / (_history.back() - _history.front());
 124                         }
 125                 }
 126         }
 127
 128         void append (string s)
 129         {
 130                 _log.push_back (s);
 131                 emit (boost::bind (boost::ref (Appended), s));
 132         }
 133
 134         list<string> _log;
 135         optional<struct tm> _last_time;
 136         std::list<double> _history;
 137
 138         mutable boost::mutex _state_mutex;
 139         float _fps;
 140 };
 141
 142 static shared_ptr<ServerLog> server_log;
 143
 144 class StatusDialog : public wxDialog
 145 {
 146 public:
 147         StatusDialog ()
 148                 : wxDialog (
 149                         0, 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                 wxFlexGridSizer* 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                 wxFlexGridSizer* 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         boost::shared_ptr<wxTimer> _timer;
 212 };
 213
 214 class TaskBarIcon : public wxTaskBarIcon
 215 {
 216 public:
 217         TaskBarIcon ()
 218                 : _status (0)
 219         {
 220 #ifdef DCPOMATIC_WINDOWS
 221                 wxIcon icon (std_to_wx ("id"));
 222 #else
 223                 wxBitmap bitmap (wxString::Format (wxT ("%s/dcpomatic_small.png"), std_to_wx (shared_path().string())), wxBITMAP_TYPE_PNG);
 224                 wxIcon icon;
 225                 icon.CopyFromBitmap (bitmap);
 226 #endif
 227
 228                 SetIcon (icon, std_to_wx ("DCP-o-matic Encode Server"));
 229
 230                 Bind (wxEVT_MENU, boost::bind (&TaskBarIcon::status, this), ID_status);
 231                 Bind (wxEVT_MENU, boost::bind (&TaskBarIcon::quit, this), ID_quit);
 232         }
 233
 234         wxMenu* CreatePopupMenu ()
 235         {
 236                 wxMenu* menu = new wxMenu;
 237                 menu->Append (ID_status, std_to_wx ("Status..."));
 238                 menu->Append (ID_quit, std_to_wx ("Quit"));
 239                 return menu;
 240         }
 241
 242 private:
 243         void status ()
 244         {
 245                 if (!_status) {
 246                         _status = new StatusDialog ();
 247                 }
 248                 _status->Show ();
 249         }
 250
 251         void quit ()
 252         {
 253                 wxTheApp->ExitMainLoop ();
 254         }
 255
 256         StatusDialog* _status;
 257 };
 258
 259 class App : public wxApp, public ExceptionStore
 260 {
 261 public:
 262         App ()
 263                 : wxApp ()
 264                 , _thread (0)
 265                 , _icon (0)
 266         {}
 267
 268 private:
 269
 270         bool OnInit ()
 271         {
 272                 if (!wxApp::OnInit ()) {
 273                         return false;
 274                 }
 275
 276                 wxInitAllImageHandlers ();
 277
 278                 server_log.reset (new ServerLog);
 279                 server_log->set_types (LogEntry::TYPE_GENERAL | LogEntry::TYPE_WARNING | LogEntry::TYPE_ERROR);
 280                 dcpomatic_log = server_log;
 281
 282                 Config::FailedToLoad.connect (boost::bind (&App::config_failed_to_load, this));
 283                 Config::Warning.connect (boost::bind (&App::config_warning, this, _1));
 284
 285                 wxSplashScreen* splash = maybe_show_splash ();
 286
 287                 dcpomatic_setup_path_encoding ();
 288                 dcpomatic_setup_i18n ();
 289                 dcpomatic_setup ();
 290                 Config::drop ();
 291
 292                 signal_manager = new wxSignalManager (this);
 293                 Bind (wxEVT_IDLE, boost::bind (&App::idle, this));
 294
 295                 /* Bad things happen (on Linux at least) if the config is reloaded by main_thread;
 296                    it seems like there's a race which results in the locked_sstream mutex being
 297                    locked before it is initialised.  Calling Config::instance() here loads the config
 298                    again in this thread, which seems to work around the problem.
 299                 */
 300                 Config::instance();
 301
 302 #ifdef DCPOMATIC_LINUX
 303                 StatusDialog* d = new StatusDialog ();
 304                 d->Show ();
 305 #else
 306                 _icon = new TaskBarIcon;
 307 #endif
 308                 _thread = new thread (bind (&App::main_thread, this));
 309
 310                 Bind (wxEVT_TIMER, boost::bind (&App::check, this));
 311                 _timer.reset (new wxTimer (this));
 312                 _timer->Start (1000);
 313
 314                 if (splash) {
 315                         splash->Destroy ();
 316                 }
 317
 318                 SetExitOnFrameDelete (false);
 319
 320                 return true;
 321         }
 322
 323         int OnExit ()
 324         {
 325                 delete _icon;
 326                 return wxApp::OnExit ();
 327         }
 328
 329         void main_thread ()
 330         try {
 331                 EncodeServer server (false, Config::instance()->server_encoding_threads());
 332                 server.run ();
 333         } catch (...) {
 334                 store_current ();
 335         }
 336
 337         void check ()
 338         {
 339                 try {
 340                         rethrow ();
 341                 } catch (exception& e) {
 342                         error_dialog (0, std_to_wx (e.what ()));
 343                         wxTheApp->ExitMainLoop ();
 344                 } catch (...) {
 345                         error_dialog (0, _("An unknown error has occurred with the DCP-o-matic server."));
 346                         wxTheApp->ExitMainLoop ();
 347                 }
 348         }
 349
 350         void idle ()
 351         {
 352                 signal_manager->ui_idle ();
 353         }
 354
 355         void config_failed_to_load ()
 356         {
 357                 message_dialog (0, _("The existing configuration failed to load.  Default values will be used instead.  These may take a short time to create."));
 358         }
 359
 360         void config_warning (string m)
 361         {
 362                 message_dialog (0, std_to_wx (m));
 363         }
 364
 365         boost::thread* _thread;
 366         TaskBarIcon* _icon;
 367         shared_ptr<wxTimer> _timer;
 368 };
 369
 370 IMPLEMENT_APP (App)