Allow single app instance per configuration

src/app/application.cpp

@@ -126,9 +126,8 @@ namespace
 #endif
 }
 
-Application::Application(const QString &id, int &argc, char **argv)
+Application::Application(int &argc, char **argv)
     : BaseApplication(argc, argv)
-    , m_instanceManager(new ApplicationInstanceManager {id, this})
     , m_running(false)
     , m_shutdownAct(ShutdownDialogAction::Exit)
     , m_commandLineArgs(parseCommandLine(this->arguments()))
@@ -144,11 +143,16 @@ Application::Application(const QString &id, int &argc, char **argv)
     QPixmapCache::setCacheLimit(PIXMAP_CACHE_SIZE);
 #endif
 
-    const bool portableModeEnabled = m_commandLineArgs.profileDir.isEmpty() && QDir(QCoreApplication::applicationDirPath()).exists(DEFAULT_PORTABLE_MODE_PROFILE_DIR);
+    const bool portableModeEnabled = m_commandLineArgs.profileDir.isEmpty()
+            && QDir(QCoreApplication::applicationDirPath()).exists(DEFAULT_PORTABLE_MODE_PROFILE_DIR);
 
     const QString profileDir = portableModeEnabled
         ? QDir(QCoreApplication::applicationDirPath()).absoluteFilePath(DEFAULT_PORTABLE_MODE_PROFILE_DIR)
         : m_commandLineArgs.profileDir;
+    const QString appId = QLatin1String("qBittorrent-") + Utils::Misc::getUserIDString() + '@' + profileDir
+            + (m_commandLineArgs.configurationName.isEmpty() ? QString {} : ('/' + m_commandLineArgs.configurationName));
+    m_instanceManager = new ApplicationInstanceManager {appId, this};
+
     Profile::initInstance(profileDir, m_commandLineArgs.configurationName,
                         (m_commandLineArgs.relativeFastresumePaths || portableModeEnabled));
 

src/app/application.h

@@ -74,7 +74,7 @@ class Application : public BaseApplication
     Q_DISABLE_COPY(Application)
 
 public:
-    Application(const QString &id, int &argc, char **argv);
+    Application(int &argc, char **argv);
     ~Application() override;
 
     bool isRunning();
@@ -120,7 +120,7 @@ private slots:
 #endif
 
 private:
-    ApplicationInstanceManager *m_instanceManager;
+    ApplicationInstanceManager *m_instanceManager = nullptr;
     bool m_running;
     ShutdownDialogAction m_shutdownAct;
     QBtCommandLineParameters m_commandLineArgs;

src/app/cmdoptions.h

@@ -42,7 +42,11 @@ class QProcessEnvironment;
 
 struct QBtCommandLineParameters
 {
-    bool showHelp, relativeFastresumePaths, skipChecking, sequential, firstLastPiecePriority;
+    bool showHelp;
+    bool relativeFastresumePaths;
+    bool skipChecking;
+    bool sequential;
+    bool firstLastPiecePriority;
 #if !defined(Q_OS_WIN) || defined(DISABLE_GUI)
     bool showVersion;
 #endif
@@ -52,9 +56,14 @@ struct QBtCommandLineParameters
     bool shouldDaemonize;
 #endif
     int webUiPort;
-    TriStateBool addPaused, skipDialog;
+    TriStateBool addPaused;
+    TriStateBool skipDialog;
     QStringList torrents;
-    QString profileDir, configurationName, savePath, category, unknownParameter;
+    QString profileDir;
+    QString configurationName;
+    QString savePath;
+    QString category;
+    QString unknownParameter;
 
     explicit QBtCommandLineParameters(const QProcessEnvironment &);
     QStringList paramList() const;

src/app/main.cpp

@@ -78,7 +78,6 @@ Q_IMPORT_PLUGIN(QICOPlugin)
 
 #include "base/preferences.h"
 #include "base/profile.h"
-#include "base/utils/misc.h"
 #include "application.h"
 #include "cmdoptions.h"
 #include "upgrade.h"
@@ -135,11 +134,9 @@ int main(int argc, char *argv[])
 
     try {
         // Create Application
-        const QString appId = QLatin1String("qBittorrent-") + Utils::Misc::getUserIDString();
-        auto app = std::make_unique<Application>(appId, argc, argv);
+        auto app = std::make_unique<Application>(argc, argv);
 
         const QBtCommandLineParameters params = app->commandLineArgs();
-
         if (!params.unknownParameter.isEmpty()) {
             throw CommandLineParameterError(QObject::tr("%1 is an unknown command line parameter.",
                                                         "--random-parameter is an unknown command line parameter.")
@@ -258,7 +255,7 @@ int main(int argc, char *argv[])
         if (params.shouldDaemonize) {
             app.reset(); // Destroy current application
             if (daemon(1, 0) == 0) {
-                app = std::make_unique<Application>(appId, argc, argv);
+                app = std::make_unique<Application>(argc, argv);
                 if (app->isRunning()) {
                     // Another instance had time to start.
                     return EXIT_FAILURE;