First part of more threadsafety, mostly for liblastfm2's qnam

src/libtomahawk/infosystem/infoplugins/echonestplugin.cpp

@@ -45,6 +45,7 @@ EchoNestPlugin::~EchoNestPlugin()
 void
 EchoNestPlugin::namChangedSlot()
 {
+    qDebug() << Q_FUNC_INFO;
     Echonest::Config::instance()->setNetworkAccessManager( m_infoSystemWorker->nam() );
 }
 

src/libtomahawk/infosystem/infoplugins/lastfmplugin.cpp

@@ -52,6 +52,8 @@ LastFmPlugin::LastFmPlugin( InfoSystemWorker* parent )
     supportedPushTypes << InfoSubmitScrobble << InfoSubmitNowPlaying; 
     parent->registerInfoTypes( this, supportedGetTypes, supportedPushTypes );
 
+    connect( parent, SIGNAL( namChanged() ), SLOT( namChangedSlot() ) );
+
 /*
       Your API Key is 7194b85b6d1f424fe1668173a78c0c4a
       Your secret is ba80f1df6d27ae63e9cb1d33ccf2052f
@@ -96,6 +98,14 @@ LastFmPlugin::~LastFmPlugin()
 }
 
 
+void
+LastFmPlugin::namChangedSlot()
+{
+    qDebug() << Q_FUNC_INFO;
+    lastfm::setNetworkAccessManager( m_infoSystemWorker->nam() );
+}
+
+
 void
 LastFmPlugin::dataError( const QString &caller, const Tomahawk::InfoSystem::InfoType type, const QVariant &input, const Tomahawk::InfoSystem::InfoCustomData &customData )
 {

src/libtomahawk/infosystem/infoplugins/lastfmplugin.h

@@ -51,6 +51,8 @@ public slots:
     void coverArtReturned();
     void artistImagesReturned();
 
+    void namChangedSlot();
+
 protected slots:
     virtual void getInfo( const QString caller, const Tomahawk::InfoSystem::InfoType type, const QVariant input, const Tomahawk::InfoSystem::InfoCustomData customData );
     virtual void notInCacheSlot( const Tomahawk::InfoSystem::InfoCriteriaHash criteria, const QString caller, const Tomahawk::InfoSystem::InfoType type, const QVariant input, const Tomahawk::InfoSystem::InfoCustomData customData );

src/libtomahawk/infosystem/infosystem.cpp

@@ -66,7 +66,6 @@ InfoSystem::InfoSystem(QObject *parent)
     m_infoSystemWorkerThreadController->start();
 
     QMetaObject::invokeMethod( m_worker, "init", Qt::QueuedConnection );
-    QMetaObject::invokeMethod( m_worker, "newNam", Qt::QueuedConnection );
 
     connect( TomahawkSettings::instance(), SIGNAL( changed() ), m_worker, SLOT( newNam() ) );
 

src/libtomahawk/infosystem/infosystemworker.cpp

@@ -91,6 +91,8 @@ void InfoSystemWorker::init()
                 SLOT( updateCacheSlot( Tomahawk::InfoSystem::InfoCriteriaHash, qint64, Tomahawk::InfoSystem::InfoType, QVariant ) )
             );
     }
+
+    QMetaObject::invokeMethod( this, "newNam" );
 }
 
 
@@ -162,7 +164,8 @@ InfoSystemWorker::nam() const
 void
 InfoSystemWorker::newNam()
 {
-    QNetworkAccessManager *newNam = new QNetworkAccessManager( this );
+    qDebug() << Q_FUNC_INFO;
+    QNetworkAccessManager *newNam = new QNetworkAccessManager();
     if ( m_nam )
     {
         delete m_nam;

src/tomahawkapp.cpp

@@ -244,8 +244,6 @@ TomahawkApp::init()
     else
         TomahawkUtils::setProxy( new QNetworkProxy( QNetworkProxy::NoProxy ) );
 
-    m_infoSystem->newNam();
-
     Echonest::Config::instance()->setAPIKey( "JRIHWEP6GPOER2QQ6" );
     Echonest::Config::instance()->setNetworkAccessManager( TomahawkUtils::nam() );