src/main/monoapplication.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-2019 by the Quassel Project                        *
   3  *   devel@quassel-irc.org                                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) version 3.                                           *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
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  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
  19  ***************************************************************************/
  20
  21 #include "monoapplication.h"
  22
  23 #include "client.h"
  24 #include "core.h"
  25 #include "coreapplication.h"
  26 #include "internalpeer.h"
  27 #include "qtui.h"
  28
  29 class InternalPeer;
  30
  31 MonolithicApplication::MonolithicApplication(int& argc, char** argv)
  32     : QtUiApplication(argc, argv)
  33 {}
  34
  35 void MonolithicApplication::init()
  36 {
  37     QtUiApplication::init();
  38
  39     connect(Client::coreConnection(), &CoreConnection::connectToInternalCore, this, &MonolithicApplication::onConnectionRequest);
  40
  41     // If port is set, start internal core directly so external clients can connect
  42     // This is useful in case the mono client re-gains remote connection capability,
  43     // in which case the internal core would not have to be started by default.
  44     if (Quassel::isOptionSet("port")) {
  45         startInternalCore();
  46     }
  47 }
  48
  49 Quassel::QuitHandler MonolithicApplication::quitHandler()
  50 {
  51     return [this]() {
  52         qInfo() << "Client shutting down...";
  53         connect(_client.get(), &QObject::destroyed, this, &MonolithicApplication::onClientDestroyed);
  54         _client.release()->deleteLater();
  55     };
  56 }
  57
  58 void MonolithicApplication::onClientDestroyed()
  59 {
  60     if (_core) {
  61         connect(_core, &Core::shutdownComplete, this, &MonolithicApplication::onCoreShutdown);
  62         _core->shutdown();
  63     }
  64     else {
  65         QCoreApplication::quit();
  66     }
  67 }
  68
  69 void MonolithicApplication::onCoreShutdown()
  70 {
  71     if (_core) {
  72         connect(_core, &QObject::destroyed, QCoreApplication::instance(), &QCoreApplication::quit);
  73         _coreThread.quit();
  74         _coreThread.wait();
  75     }
  76     else {
  77         QCoreApplication::quit();
  78     }
  79 }
  80
  81 void MonolithicApplication::startInternalCore()
  82 {
  83     if (_core) {
  84         // Already started
  85         return;
  86     }
  87
  88     // Start internal core in a separate thread, so it doesn't block the UI
  89     _core = new Core{};
  90     _core->moveToThread(&_coreThread);
  91     connect(&_coreThread, &QThread::started, _core.data(), &Core::initAsync);
  92     connect(&_coreThread, &QThread::finished, _core.data(), &QObject::deleteLater);
  93
  94     connect(this, &MonolithicApplication::connectInternalPeer, _core, &Core::connectInternalPeer);
  95     connect(_core, &Core::sessionStateReceived, Client::coreConnection(), &CoreConnection::internalSessionStateReceived);
  96
  97     connect(_core.data(), &Core::dbUpgradeInProgress, Client::instance(), &Client::onDbUpgradeInProgress);
  98     connect(_core.data(), &Core::exitRequested, Client::instance(), &Client::onExitRequested);
  99
 100     _coreThread.start();
 101 }
 102
 103 void MonolithicApplication::onConnectionRequest(QPointer<InternalPeer> peer)
 104 {
 105     if (!_core) {
 106         startInternalCore();
 107     }
 108
 109     // While starting the core may take a while, the object itself is instantiated synchronously and the connections
 110     // established, so it's safe to emit this immediately. The core will take care of queueing the request until
 111     // initialization is complete.
 112     emit connectInternalPeer(peer);
 113 }