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 "lib/util.h"
  24 #include "lib/encoded_log_entry.h"
  25 #include "lib/encode_server.h"
  26 #include "lib/config.h"
  27 #include "lib/log.h"
  28 #include "lib/signaller.h"
  29 #include "lib/cross.h"
  30 #include <wx/taskbar.h>
  31 #include <wx/icon.h>
  32 #include <boost/thread.hpp>
  33 #include <boost/foreach.hpp>
  34 #include <boost/optional.hpp>
  35 #include <iostream>
  36
  37 using std::cout;
  38 using std::string;
  39 using std::exception;
  40 using std::list;
  41 using std::fixed;
  42 using std::setprecision;
  43 using boost::shared_ptr;
  44 using boost::thread;
  45 using boost::bind;
  46 using boost::optional;
  47 using boost::dynamic_pointer_cast;
  48
  49 enum {
  50         ID_status = 1,
  51         ID_quit,
  52         ID_timer
  53 };
  54
  55 static unsigned int const log_lines = 32;
  56
  57 class ServerLog : public Log, public Signaller
  58 {
  59 public:
  60
  61         string get () const {
  62                 string a;
  63                 BOOST_FOREACH (string const & i, _log) {
  64                         a += i + "\n";
  65                 }
  66                 return a;
  67         }
  68
  69         string head_and_tail (int) const {
  70                 /* Not necessary */
  71                 return "";
  72         }
  73
  74         float fps () const {
  75                 boost::mutex::scoped_lock lm (_state_mutex);
  76                 return _fps;
  77         }
  78
  79         boost::signals2::signal<void(string)> Appended;
  80         boost::signals2::signal<void(int)> Removed;
  81
  82 private:
  83         void do_log (shared_ptr<const LogEntry> entry)
  84         {
  85                 time_t const s = entry->seconds ();
  86                 struct tm* local = localtime (&s);
  87                 if (
  88                         !_last_time ||
  89                         local->tm_yday != _last_time->tm_yday ||
  90                         local->tm_year != _last_time->tm_year ||
  91                         local->tm_hour != _last_time->tm_hour ||
  92                         local->tm_min != _last_time->tm_min
  93                         ) {
  94                         char buffer[64];
  95                         strftime (buffer, 64, "%c", local);
  96                         append (buffer);
  97                 }
  98
  99                 append (entry->message ());
 100                 if (_log.size() > log_lines) {
 101                         emit (boost::bind (boost::ref (Removed), _log.front().length()));
 102                         _log.pop_front ();
 103                 }
 104                 _last_time = *local;
 105
 106                 shared_ptr<const EncodedLogEntry> encoded = dynamic_pointer_cast<const EncodedLogEntry> (entry);
 107                 if (encoded) {
 108                         _history.push_back (encoded->seconds ());
 109                         if (_history.size() > 48) {
 110                                 _history.pop_front ();
 111                         }
 112                         if (_history.size() > 2) {
 113                                 boost::mutex::scoped_lock lm (_state_mutex);
 114                                 _fps = _history.size() / (_history.back() - _history.front());
 115                         }
 116                 }
 117         }
 118
 119         void append (string s)
 120         {
 121                 _log.push_back (s);
 122                 emit (boost::bind (boost::ref (Appended), s));
 123         }
 124
 125         list<string> _log;
 126         optional<struct tm> _last_time;
 127         std::list<double> _history;
 128
 129         mutable boost::mutex _state_mutex;
 130         float _fps;
 131 };
 132
 133 static shared_ptr<ServerLog> server_log;
 134
 135 class StatusDialog : public wxDialog
 136 {
 137 public:
 138         StatusDialog ()
 139                 : wxDialog (
 140                         0, wxID_ANY, _("DCP-o-matic Encode Server"),
 141                         wxDefaultPosition, wxDefaultSize,
 142                         wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER
 143                         )
 144         {
 145                 wxFlexGridSizer* state_sizer = new wxFlexGridSizer (2, DCPOMATIC_SIZER_GAP, DCPOMATIC_SIZER_GAP);
 146
 147                 add_label_to_sizer (state_sizer, this, _("Frames per second"), true);
 148                 _fps = new wxStaticText (this, wxID_ANY, wxT(""));
 149                 state_sizer->Add (_fps);
 150
 151                 wxFlexGridSizer* log_sizer = new wxFlexGridSizer (1, DCPOMATIC_SIZER_GAP, DCPOMATIC_SIZER_GAP);
 152                 log_sizer->AddGrowableCol (0, 1);
 153
 154                 wxClientDC dc (this);
 155                 wxSize size = dc.GetTextExtent (wxT ("This is the length of the file label it should be quite long"));
 156                 int const height = (size.GetHeight() + 2) * log_lines;
 157                 SetSize (700, height + DCPOMATIC_SIZER_GAP * 2);
 158
 159                 _text = new wxTextCtrl (
 160                         this, wxID_ANY, std_to_wx (server_log->get()), wxDefaultPosition, wxSize (-1, height),
 161                         wxTE_READONLY | wxTE_MULTILINE
 162                         );
 163
 164                 log_sizer->Add (_text, 1, wxEXPAND);
 165
 166                 wxBoxSizer* overall_sizer = new wxBoxSizer (wxVERTICAL);
 167                 overall_sizer->Add (state_sizer, 0, wxALL, DCPOMATIC_SIZER_GAP);
 168                 overall_sizer->Add (log_sizer, 1, wxEXPAND | wxALL, DCPOMATIC_SIZER_GAP);
 169                 SetSizer (overall_sizer);
 170                 overall_sizer->Layout ();
 171
 172                 Bind (wxEVT_TIMER, boost::bind (&StatusDialog::update_state, this));
 173                 _timer.reset (new wxTimer (this));
 174                 _timer->Start (1000);
 175
 176                 server_log->Appended.connect (bind (&StatusDialog::appended, this, _1));
 177                 server_log->Removed.connect (bind (&StatusDialog::removed, this, _1));
 178         }
 179
 180 private:
 181         void appended (string s)
 182         {
 183                 (*_text) << s << "\n";
 184         }
 185
 186         void removed (int n)
 187         {
 188                 _text->Remove (0, n + 1);
 189         }
 190
 191         void update_state ()
 192         {
 193                 _fps->SetLabel (wxString::Format ("%.1f", server_log->fps()));
 194         }
 195
 196         wxTextCtrl* _text;
 197         wxStaticText* _fps;
 198         boost::shared_ptr<wxTimer> _timer;
 199 };
 200
 201 class TaskBarIcon : public wxTaskBarIcon
 202 {
 203 public:
 204         TaskBarIcon ()
 205                 : _status (0)
 206         {
 207 #ifdef DCPOMATIC_WINDOWS
 208                 wxIcon icon (std_to_wx ("taskbar_icon"));
 209 #else
 210                 wxInitAllImageHandlers();
 211                 wxBitmap bitmap (wxString::Format (wxT ("%s/dcpomatic2_server_small.png"), std_to_wx (shared_path().string())), wxBITMAP_TYPE_PNG);
 212                 wxIcon icon;
 213                 icon.CopyFromBitmap (bitmap);
 214 #endif
 215
 216                 SetIcon (icon, std_to_wx ("DCP-o-matic Encode Server"));
 217
 218                 Bind (wxEVT_COMMAND_MENU_SELECTED, boost::bind (&TaskBarIcon::status, this), ID_status);
 219                 Bind (wxEVT_COMMAND_MENU_SELECTED, boost::bind (&TaskBarIcon::quit, this), ID_quit);
 220         }
 221
 222         wxMenu* CreatePopupMenu ()
 223         {
 224                 wxMenu* menu = new wxMenu;
 225                 menu->Append (ID_status, std_to_wx ("Status..."));
 226                 menu->Append (ID_quit, std_to_wx ("Quit"));
 227                 return menu;
 228         }
 229
 230 private:
 231         void status ()
 232         {
 233                 if (!_status) {
 234                         _status = new StatusDialog ();
 235                 }
 236                 _status->Show ();
 237         }
 238
 239         void quit ()
 240         {
 241                 wxTheApp->ExitMainLoop ();
 242         }
 243
 244         StatusDialog* _status;
 245 };
 246
 247 class App : public wxApp, public ExceptionStore
 248 {
 249 public:
 250         App ()
 251                 : wxApp ()
 252                 , _thread (0)
 253                 , _icon (0)
 254         {}
 255
 256 private:
 257
 258         bool OnInit ()
 259         {
 260                 if (!wxApp::OnInit ()) {
 261                         return false;
 262                 }
 263
 264                 server_log.reset (new ServerLog);
 265
 266                 dcpomatic_setup_path_encoding ();
 267                 dcpomatic_setup_i18n ();
 268                 dcpomatic_setup ();
 269                 Config::drop ();
 270
 271                 signal_manager = new wxSignalManager (this);
 272                 Bind (wxEVT_IDLE, boost::bind (&App::idle, this));
 273
 274                 _icon = new TaskBarIcon;
 275                 _thread = new thread (bind (&App::main_thread, this));
 276
 277                 Bind (wxEVT_TIMER, boost::bind (&App::check, this));
 278                 _timer.reset (new wxTimer (this));
 279                 _timer->Start (1000);
 280
 281                 return true;
 282         }
 283
 284         int OnExit ()
 285         {
 286                 delete _icon;
 287                 return wxApp::OnExit ();
 288         }
 289
 290         void main_thread ()
 291         try {
 292                 EncodeServer server (server_log, false, Config::instance()->num_local_encoding_threads());
 293                 server.run ();
 294         } catch (...) {
 295                 store_current ();
 296         }
 297
 298         void check ()
 299         {
 300                 try {
 301                         rethrow ();
 302                 } catch (exception& e) {
 303                         error_dialog (0, std_to_wx (e.what ()));
 304                         wxTheApp->ExitMainLoop ();
 305                 } catch (...) {
 306                         error_dialog (0, _("An unknown error has occurred with the DCP-o-matic server."));
 307                         wxTheApp->ExitMainLoop ();
 308                 }
 309         }
 310
 311         void idle ()
 312         {
 313                 signal_manager->ui_idle ();
 314         }
 315
 316         boost::thread* _thread;
 317         TaskBarIcon* _icon;
 318         shared_ptr<wxTimer> _timer;
 319 };
 320
 321 IMPLEMENT_APP (App)