src/main/monoapplication.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-2018 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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  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 "logmessage.h"
  28 #include "qtui.h"
  29
  30 class InternalPeer;
  31
  32 MonolithicApplication::MonolithicApplication(int& argc, char** argv)
  33     : QtUiApplication(argc, argv)
  34 {}
  35
  36 void MonolithicApplication::init()
  37 {
  38     QtUiApplication::init();
  39
  40     connect(Client::coreConnection(), &CoreConnection::connectToInternalCore, this, &MonolithicApplication::onConnectionRequest);
  41
  42     // If port is set, start internal core directly so external clients can connect
  43     // This is useful in case the mono client re-gains remote connection capability,
  44     // in which case the internal core would not have to be started by default.
  45     if (Quassel::isOptionSet("port")) {
  46         startInternalCore();
  47     }
  48 }
  49
  50 Quassel::QuitHandler MonolithicApplication::quitHandler()
  51 {
  52     return [this]() {
  53         quInfo() << "Client shutting down...";
  54         connect(_client.get(), &QObject::destroyed, this, &MonolithicApplication::onClientDestroyed);
  55         _client.release()->deleteLater();
  56     };
  57 }
  58
  59 void MonolithicApplication::onClientDestroyed()
  60 {
  61     if (_core) {
  62         connect(_core, &Core::shutdownComplete, this, &MonolithicApplication::onCoreShutdown);
  63         _core->shutdown();
  64     }
  65     else {
  66         QCoreApplication::quit();
  67     }
  68 }
  69
  70 void MonolithicApplication::onCoreShutdown()
  71 {
  72     if (_core) {
  73         connect(_core, &QObject::destroyed, QCoreApplication::instance(), &QCoreApplication::quit);
  74         _coreThread.quit();
  75         _coreThread.wait();
  76     }
  77     else {
  78         QCoreApplication::quit();
  79     }
  80 }
  81
  82 void MonolithicApplication::startInternalCore()
  83 {
  84     if (_core) {
  85         // Already started
  86         return;
  87     }
  88
  89     // Start internal core in a separate thread, so it doesn't block the UI
  90     _core = new Core{};
  91     _core->moveToThread(&_coreThread);
  92     connect(&_coreThread, &QThread::started, _core.data(), &Core::initAsync);
  93     connect(&_coreThread, &QThread::finished, _core.data(), &QObject::deleteLater);
  94
  95     connect(this, &MonolithicApplication::connectInternalPeer, _core, &Core::connectInternalPeer);
  96     connect(_core, &Core::sessionStateReceived, Client::coreConnection(), &CoreConnection::internalSessionStateReceived);
  97
  98     connect(_core.data(), &Core::dbUpgradeInProgress, Client::instance(), &Client::onDbUpgradeInProgress);
  99     connect(_core.data(), &Core::exitRequested, Client::instance(), &Client::onExitRequested);
 100
 101     _coreThread.start();
 102 }
 103
 104 void MonolithicApplication::onConnectionRequest(QPointer<InternalPeer> peer)
 105 {
 106     if (!_core) {
 107         startInternalCore();
 108     }
 109
 110     // While starting the core may take a while, the object itself is instantiated synchronously and the connections
 111     // established, so it's safe to emit this immediately. The core will take care of queueing the request until
 112     // initialization is complete.
 113     emit connectInternalPeer(peer);
 114 }